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HomeMy WebLinkAboutAppendix E - Preliminary Hydrology ReportCity of Fontana Hemlock Warehouse Development Project Initial Study 141 APPENDIX E: PRELIMINARY HYDROLOGY REPORT City of Fontana Hemlock Warehouse Development Project Initial Study 142 This page intentionally left blank. _____________________________________________________________________________________________ Jan-2023 2022-318 11115 Hemlock Avenue City of Fontana, CA MCN22-000143 DRP22-000064 Preliminary Hydrology Report Prepared For: Prologis 17777 Center Court Dr. N, Suite 100 Cerritos, CA 90703 (652)-376-9241 Prepared By: WestLAND Group, Inc. 4150 Concours St., Suite 100 Ontario, CA 91764 (909)-989-9789 2nd PC Prelim Hydrology Study D Hammer February 16, 2023 Comments provided however, this report is acceptable for entitlements review. Please address the comments when submitting the final hydrology report with the offsite improvement plans. . PRELIMINARY HYDROLOGY REPORT JAN-2023 TABLE OF CONTENTS TABLE OF CONTENTS 1. INTRODUCTION ............................................................................................................. 1 2. EXISTING SITE DESCRIPTION ............................................................................................. 1 2.1. Existing Site Topography & Hydrologic Patterns ................................................. 1 3. PROJECT SITE DESCRIPTION ............................................................................................. 1 3.1. Project Description & Hydrologic Patterns .......................................................... 1 4. RESULTS & ANALYSIS...................................................................................................... 2 4.1. Methodology ..................................................................................................... 2 4.2. Hydrology Results & Analysis ............................................................................. 3 5. CONCLUSION ................................................................................................................ 5 6. REFERENCES ................................................................................................................. 5 PRELIMINARY HYDROLOGY REPORT JAN-2023 APPENDICES APPENDICIES APPENDIX A ............................................................................ HYDROLOGY EXHIBITS & SUMMARY TABLE PRE-DEVELOPMENT DRAINAGE MAP POST-DEVELOPMENT DRAINAGE MAP HYDROLOGY SUMMARY TABLE APPENDIX B ............................................................................................ RATIONAL METHOD ANALYSIS B.1 PRE-DEVELOPMENT CONDITIONS – 2 YEAR B.2 PRE-DEVELOPMENT CONDITIONS – 10 YEAR B.3 PRE-DEVELOPMENT CONDITIONS – 25 YEAR B.4 PRE-DEVELOPMENT CONDITIONS – 100 YEAR B.5 POST-DEVELOPMENT CONDITIONS – 2 YEAR B.6 POST-DEVELOPMENT CONDITIONS – 10 YEAR B.7 POST-DEVELOPMENT CONDITIONS – 25 YEAR B.8 POST-DEVELOPMENT CONDITIONS – 100 YEAR APPENDIX C ............................................................................................ UNIT HYDROGRAPH ANALYSIS C.1 PRE-DEVELOPMENT CONDITIONS – 2 YEAR C.2 PRE-DEVELOPMENT CONDITIONS – 10 YEAR C.3 PRE-DEVELOPMENT CONDITIONS – 25 YEAR C.4 PRE-DEVELOPMENT CONDITIONS – 100 YEAR C.5 POST-DEVELOPMENT CONDITIONS – 2 YEAR C.6 POST-DEVELOPMENT CONDITIONS – 10 YEAR C.7 POST-DEVELOPMENT CONDITIONS – 25 YEAR C.8 POST-DEVELOPMENT CONDITIONS – 100 YEAR APPENDIX D ................................................................................................. BASIN ROUTING ANALYSIS BASIN ROUTING SUMMARY TABLE UNDERGROUND CHAMBER SYSTEM DETAILS D.1 DRAINAGE AREA A – 2 YEAR D.2 DRAINAGE AREA A – 10 YEAR D.3 DRAINAGE AREA A – 25 YEAR D.4 DRAINAGE AREA A – 100 YEAR D.5 DRAINAGE AREA B – 2 YEAR D.6 DRAINAGE AREA B – 10 YEAR D.7 DRAINAGE AREA B – 25 YEAR D.8 DRAINAGE AREA B – 100 YEAR APPENDIX E ................................................................................................. SUPPORTING DOCUMENTS E.1 SOILS MAP E.2 NOAA ATLAS 14 DATA APPENDIX F ........................................................................................................ INFILTRATION REPORT PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. 1 1. INTRODUCTION The purpose of this study is to demonstrate that the proposed project site can be designed to provide adequate flood protection without adversely impacting existing off-site drainage systems or adjacent properties. The scope of this analysis includes the pre-developed and post-developed runoff analysis. 2. EXISTING SITE DESCRIPTION 2.1. EXISTING SITE TOPOGRAPHY & HYDROLOGIC PATTERNS The project site is located on Hemlock Avenue, approximately 750-ft north of Jurupa Avenue in the City of Fontana, County of San Bernardino. The site is currently bounded to the north by existing commercial developments, to the east by Beech Avenue, to the south by an industrial development, and to the west by Hemlock Avenue. The total area, after dedication, of the project site is 37.40 acres. The site was once utilized as a mobile trailer storage yard. The site is currently vacant with two existing buildings remaining to be demolished. Ground surface cover throughout the majority of the site consists of decomposed granite with areas of asphalt concrete pavements surrounding the existing buildings. Most of the northern side of the site consists of Portland cement concrete. Landscape planters are present along the west and east property lines of the site. The site consists of two (2) drainage areas in the existing condition: Drainage Area A (DA-A) and Drainage Area B (DA-B). The natural drainage pattern for DA-A in the existing condition is northeast to southwest. Stormwater sheet flow towards an existing gutter adjacent to the existing screen wall along the west property line. There are two existing openings underneath the screen wall located at the west-central area and southwest corner of the site to allow stormwater to discharge onto Hemlock Avenue. Runoff ultimately is captured by the existing street catch basins, which is connected to an existing 66-inch public storm drain system in Hemlock Avenue. The natural drainage pattern for DA-B in the existing condition is northwest to southeast. Stormwater sheet flow towards an existing gutter adjacent to the existing screen wall along the east property line. There is an opening underneath the screen wall located at southeast corner of the site to allow stormwater to discharge onto Beech Avenue. Runoff ultimately is captured by the existing street catch basins, which is connected to an existing 60-inch public storm drain system in Beech Avenue. See Figure 1 for the pre-development drainage map. 3. PROJECT SITE DESCRIPTION 3.1. PROJECT DESCRIPTION & HYDROLOGIC PATTERNS The envisioned development is a proposed industrial facility with a proposed building of approximately 750,000 square feet. Proposed auto parking spaces are located south of the site, and trailer parking spaces are located west and east of the site. Docking areas are located west and east of the proposed building. Open landscape planter areas are proposed around the perimeter of the site. The proposed development will alter the natural drainage pattern due to grading feasibility of the proposed development, however, the point of connection into the existing public storm system will be maintained. Surface runoff will be captured by a series of proposed on-site catch basins and into the proposed on-site storm drainage system. Stormwater from building roof areas will be captured by roof leaders and discharge onto the ground surface and into the proposed catch basins. The proposed on-site storm drain systems will convey the flows into two (2) proposed underground detention infiltration chambers. These chamber systems will be designed to meet the PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. 2 project’s water quality requirements and provide sufficient storage for the increase stormwater flow rate based on the proposed development of the site. The proposed chamber system will be designed to control the outflow discharge into the existing public storm drain systems. The west half of the site will ultimately discharge into the existing 66-inch public storm drain system in Hemlock Avenue. The east half of the site will ultimately discharge into the existing 60-inch public storm drain system in Beech Avenue. 4. RESULTS & ANALYSIS 4.1. METHODOLOGY The proposed drainage areas were analyzed using the San Bernardino (SB) County Hydrology Manual and City of Fontana Master Storm Drainage Plan Study (FMDP). The main methods used for this project were the Rational Method, Synthetic Unit Hydrograph Method, and Basin Routing Analysis. Civil Design software was used to compute the data. Solving for the Rational Method returns the peak flow rate. Unit Hydrograph analysis will determine the total volume generated from a storm event. Basin Routing Analysis will analyze the storage volume and outflow discharge for the proposed underground infiltration chamber. Per the FMDP, the 2-, 10-, 25-, and 100-year storms were analyzed. According to the City of Fontana Soils Map, the site is entirely composed of type A soil (See Appendix D). The proposed land use was analyzed as commercial for both the pre- and post-development condition. According to the county’s manual, Antecedent Moisture Condition (AMC) I was used for the 2-year storm event. AMC II was used for the 10- and 25-year storm event. AMC III was used for the 100-year storm event in order to give more confidence to mitigate any increase runoff, if needed. For the rational method analysis, the runoff coefficient is determined by the land use for each condition. The rainfall intensities are based on the time of concentration for each drainage area and the intensity-duration curves provided in the county’s manual. The flow lengths and terrain elevations were determined using existing topography for the pre-development condition and the conceptual grading plans for the post-development condition. The pre-development peak flow rates were calculated based on the guidelines on the FMDP, which differs from the SB County Hydrology Manual. The 10-year peak flow rates were calculated using the 5-year rainfall. The 25-year peak flow rates were calculated using the 10-year rainfall. The 100-year peak flow rates were calculated using the 25-year rainfall and AMC II For the unit hydrograph analysis, the lag time was determined by using the time of concentration based on the rational method analysis. Rainfall depths were obtained from the National Oceanic and Atmospheric Administration (NOAA) Point Precipitation Frequency Estimates. The rainfall depth data are included in Appendix E. The rainfall used in the hydrology calculations are summarized on Table 4.1. Table 4.1: Rainfall Depths Duration Storm Event 2-Year 5-year 10-year 25-year 100-year 1-hour 0.518 0.684 0.823 1.02 1.33 6-hour 1.36 1.76 2.07 2.49 3.11 24-hour 2.46 3.22 3.81 4.57 5.69 For the basin routing analysis, the results from the unit hydrograph analysis were used to determine the amount of stormwater entering and existing and exiting the proposed underground infiltration chamber at each time interval. Per the FMDP Detention Basin Criteria, the basin capacity and outlet size shall be such that the post-development PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. 3 peak flow rate generated by the development shall be less than or equal to 90% of the pre-development peak flow rate from the site. 4.2. HYDROLOGY RESULTS & ANALYSIS The complete rational method analysis and results are included in Appendix B. The complete unit hydrograph analysis and results are included in Appendix C. The tables below provide a summary of the peak flow rate and runoff volume for the pre-development and post-development condition. Table 4.2.1: Pre-Development Hydrology Summary Table Storm Event Area (Acres) Tc (min.) Flow Rate (cfs) (Rational Method) Volume (cf) (Unit Hydrograph) Drainage Area A 2-Year 29.19 13.85 11.44 101,782 10-Year 22.55 137,170 25-year 30.10 166,242 100-Year 40.48 205,146 Drainage Area B 2-Year 8.22 18.19 1.18 9,583 10-Year 3.70 13,525 25-year 5.95 17,097 100-Year 8.93 22,220 Table 4.2.2: Post-Development Hydrology Summary Table Storm Event Area (Acres) Tc (min.) Flow Rate (cfs) (Rational Method) Volume (cf) (Unit Hydrograph) Drainage Area A 2-Year 24.47 8.47 33.24 176,666 10-Year 54.11 283,436 25-year 67.58 344,085 100-Year 89.14 444,796 Drainage Area B 2-Year 12.94 8.06 19.44 96,494 10-Year 31.34 152,939 25-year 38.99 187,683 100-Year 51.18 240,848 Based on the rational method analysis, the post-development flow rate increased compare to the pre-development flow rate. Furthermore, the post-development runoff volume increased compare to the pre-development runoff volume. The increase in flow rate and runoff volume was a result from increase in impervious area. To mitigate the increase peak flow rate, two (2) underground detention infiltration chambers are proposed for the project. The size of these chambers and the outlet control structure were determined from the basin routing analysis. These chamber systems will reduce any potential impacts to the downstream off-site storm drain system and give more confidence to mitigate the increase in runoff. Furthermore, the proposed chamber system will mitigate the increase drainage area for Drainage Area B, which runoff ultimately discharge into the existing 60-inch PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. 4 public storm drain system in Beech Avenue. The basin routing analysis are included in Appendix D. Table 4.2.3 shows the basin routing analysis summary table. Table 4.2.3: Basin Routing Analysis Summary Table Storm Event 90% of Pre- Development Flow Rate (cfs) Peak Flow Rate - In (cfs) Peak Flow Rate - Out (cfs) Storm Water Peak Depth (ft) Freeboard (ft) Drainage Area A – Chamber A 2-Year 10.30 33.24 1.49 3.61 5.39 10-Year 20.29 54.11 11.20 4.96 4.04 25-year 27.09 67.58 17.49 5.67 3.33 100-Year 36.43 89.14 23.30 6.50 2.50 Drainage Area B – Chamber B 2-Year 1.07 19.44 1.00 3.06 5.94 10-Year 3.33 31.34 2.90 4.52 4.48 25-year 5.35 38.99 5.29 5.37 3.63 100-Year 8.04 51.18 7.59 6.73 2.27 Table 4.2.4: Result Analysis Summary Table Hydrology Results & Analysis Summary Table: Drainage Area A Total Area = 1,065,855 SF (24.47 Acres) Q100, PRE = 40.48 CFS (36.43 CFS – 90% of existing) Q100, POST = 89.14 CFS ∆Q100 = + 52.71 CFS DCV = 93,857 CF (See Water Quality Management Plan) Volume Provided = 255,288 CF (Underground Infiltration Chamber System A) Q100, ATTENTUATED = 23.30 CFS Q100, PRE > Q100, ATTENTUATED (Satisfied) Drainage Area B Total Area = 563,558 (12.94 Acres) Q100, PRE = 8.93 CFS (8.04 CFS – 90% of existing) Q100, POST = 51.18 CFS ∆Q100 = + 43.14 CFS DCV = 52,687 CF (See Water Quality Management Plan) Volume Provided = 144,007 CF (Underground Infiltration Chamber System B) Q100, ATTENTUATED = 7.59 CFS Q100, PRE > Q100, ATTENTUATED (Satisfied) PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. 5 5. CONCLUSION The proposed development would not create or contribute runoff that would exceed the capacity of the existing downstream storm drain system. Furthermore, the underground infiltration systems will be designed to accommodate the 100-year storm event and would not exceed the flow rates and runoff volumes generated by the existing condition. Once construction is complete, there would not be any substantial increase in flood boundaries, levels or frequencies in any areas outside the development. The hydrologic analyses and calculations were designed in accordance with the San Bernardino County Hydrology Manual and City of Fontana Master Storm Drainage Plan Study. The results from the analysis will be the basis for the grading and on-site storm-drain construction documents for the project. Evaluation of the appropriateness of guidelines and the accuracy of County data was beyond the scope of this study. Usage of this report is limited to address the purpose and scope previously defined by the project owner. The contents of this report are professional opinion and as such, are not to be considered a guaranty or warranty. 6. REFERENCES 1. City of Fontana Water Quality Management Plan Handbook dated September 2016 2. City of Fontana Master Storm Drainage Plan Study dated June 1992 3. National Oceanic and Atmospheric Administration (NOAA) Atlas 14 Point Precipitation Frequency Estimates 4. San Bernardino County Hydrology Manual dated August 1986 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX A HYDROLOGY EXHIBITS BEECH AVENUEHEMLOCK AVENUECITY OF FONTANA, CALIFORNIA 11115 HEMLOCK AVENUE 4150 CONCOURS, ONTARIO, CA 91764 PHONE: (909) 989-9789 FAX: (909) 989-9660 Engineering Geospatial Land Planning LEGEND ___________________________________________________________ SITE AREA:29.19 ACRE (AREA A) 8.22 ACRE (AREA B) SOIL GROUP:A IMPERVIOUS:34% ISOHYETALS:0.518" 1.33" CN NUMBER:32 FREQUENCY:100 YEAR METHOD:SAN BERNARDINO COUNTY HYDROLOGY MANUAL ___________________________________________________________ PROJECT SITE SUMMARY GENERAL NOTES HYDROLOGY SUMMARY TABLE ABBREVIATIONS AREA B AREA A PRE - DEVELOPMENT DRAINAGE MAP 1 This is a pervious material. This is an impervious material. BEECH AVENUE HEMLOCK AVENUEPROPOSED 96" CMP CHAMBER A PROPOSED 96" CMP CHAMBER B CITY OF FONTANA, CALIFORNIA11115 HEMLOCK AVENUE4150 CONCOURS, ONTARIO, CA 91764PHONE: (909) 989-9789 FAX: (909) 989-9660Engineering Geospatial Land PlanningLEGEND___________________________________________________________SITE AREA:24.46 ACRE (AREA A)12.94 ACRE (AREA B)SOIL GROUP:AIMPERVIOUS:89%ISOHYETALS:0.518"1.33"CN NUMBER:32FREQUENCY:100 YEARMETHOD:SAN BERNARDINO COUNTY HYDROLOGY MANUAL___________________________________________________________PROJECT SITE SUMMARYGENERAL NOTESHYDROLOGY SUMMARY TABLEABBREVIATIONSAREA BAREA AUNDERGROUND INFILTRATION CHAMBER SUMMARYPOST - DEVELOPMENTDRAINAGE MAP2 Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)A 29.19 11.44 101,782 22.55 137,170 30.10 166,242 40.48 205,146B 8.22 1.18 9,583 3.70 13,525 5.95 17,097 8.93 22,220TOTAL 37.40 12.63 111,365 26.24 150,696 36.05 183,340 49.41 227,366Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)Peak Flow Rate "Q" (cfs)24-Hr Runoff Volume "V" (cu-ft)A 24.47 33.24 176,666 54.11 283,436 67.58 344,085 89.14 444,796B 12.94 19.44 96,494 31.34 152,939 38.99 187,683 51.18 240,848TOTAL 37.40 52.68 273,160 85.44 436,375 106.57 531,767 140.32 685,643100-YEARPRE-DEVELOPMENT HYDROLOGY SUMMARY TABLE - 2, 10, 25, & 100-YEARSubareaDrainage Area (Ac)2-YEAR 10-YEAR 25-YEAR 100-YEARSubareaDrainage Area (Ac)2-YEAR 10-YEAR 25-YEARPOST-DEVELOPMENT HYDROLOGY SUMMARY TABLE - 2, 10, 25, & 100-YEARCheck pervious arearatios forpre-developedcondition calculations. PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B RATIONAL METHOD ANALYSIS Subarea Runoff Coefficient "C" Time of Conc. "Tc" (min) Rainfall Intensity "I" (in/hr) Drainage Area (Ac) Peak Flow Rate "Q" (cfs) A1 0.869 10.65 2.878 5.03 12.58 A2 0.866 12.65 2.596 4.77 9.45 A3 0.519 18.32 2.078 4.37 4.71 A4 0.490 20.67 1.933 15.01 13.66 SUBTOTAL -- -- -- 29.19 40.48 B1 0.521 18.19 2.087 8.22 8.93 TOTAL -- -- -- 37.40 49.41 AREA A AREA B PRE-DEVELOPMENT HYDROLOGY SUMMARY TABLE - 100 YEAR Subarea Runoff Coefficient "C" Time of Conc. "Tc" (min) Rainfall Intensity "I" (in/hr) Drainage Area (Ac) Peak Flow Rate "Q" (cfs) A1 0.851 5.17 5.787 0.38 1.87 A2 0.851 5.45 5.610 0.37 1.77 A3 0.850 5.78 5.416 0.42 1.94 A4 0.835 8.71 4.235 0.78 2.76 A5 0.873 7.42 4.661 1.78 7.24 A6 0.894 7.76 4.536 5.29 21.45 A7 0.893 8.76 4.221 7.75 29.22 A8 0.825 6.88 4.876 0.42 1.69 A9 0.876 9.28 4.076 2.90 10.35 A10 0.884 10.14 3.864 2.24 7.65 A11 0.858 7.83 4.513 0.97 3.79 A12 0.896 4.93 5.957 0.32 1.71 A13 0.866 6.98 4.837 0.83 3.48 SUBTOTAL -- -- -- 24.47 89.14 B1 0.861 5.42 5.627 1.92 9.30 B2 0.894 7.24 4.731 4.49 18.99 B3 0.892 8.78 4.215 6.53 24.54 SUBTOTAL -- -- -- 12.94 51.18 TOTAL -- -- -- 37.40 140.32 POST-DEVELOPMENT HYDROLOGY SUMMARY TABLE - 100 YEAR AREA A AREA B PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.1 RATIONAL METHOD ANALYSIS PRE-DEVELOPMENT CONDITIONS – 2 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 10/18/22 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 2 YEAR, RATIONAL METHOD PRE-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 2.0 Computed rainfall intensity: Storm year = 2.00 1 hour rainfall = 0.518 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.000 to Point/Station 1.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.100(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 1000.910(Ft.) Bottom (of initial area) elevation = 987.110(Ft.) Difference in elevation = 13.800(Ft.) Slope = 0.01533 s(%)= 1.53 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.652 min. Rainfall intensity = 1.461(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.838 Subarea runoff = 6.163(CFS) Total initial stream area = 5.030(Ac.) Pervious area fraction = 0.100 Initial area Fm value = 0.100(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.100 to Point/Station 1.200 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 987.110(Ft.) DG is a pervious material. Pervious fractions seems to be 1.00. Downstream point elevation = 980.950(Ft.) Channel length thru subarea = 434.000(Ft.) Channel base width = 10.000(Ft.) Slope or 'Z' of left channel bank = 100.000 Slope or 'Z' of right channel bank = 100.000 Estimated mean flow rate at midpoint of channel = 8.390(CFS) Manning's 'N' = 0.011 Maximum depth of channel = 1.000(Ft.) Flow(q) thru subarea = 8.390(CFS) Depth of flow = 0.125(Ft.), Average velocity = 2.993(Ft/s) Channel flow top width = 34.946(Ft.) Flow Velocity = 2.99(Ft/s) Travel time = 2.42 min. Time of concentration = 13.07 min. Critical depth = 0.170(Ft.) Adding area flow to channel COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.100(In/Hr) Rainfall intensity = 1.293(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.830 Subarea runoff = 4.356(CFS) for 4.770(Ac.) Total runoff = 10.519(CFS) Effective area this stream = 9.80(Ac.) Total Study Area (Main Stream No. 1) = 9.80(Ac.) Area averaged Fm value = 0.100(In/Hr) Depth of flow = 0.139(Ft.), Average velocity = 3.177(Ft/s) Critical depth = 0.189(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.350(Ft.) Downstream point/station elevation = 959.400(Ft.) Pipe length = 623.08(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 10.519(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 10.519(CFS) Normal flow depth in pipe = 13.97(In.) Flow top width inside pipe = 15.01(In.) Critical Depth = 14.95(In.) Pipe flow velocity = 7.14(Ft/s) Travel time through pipe = 1.45 min. Time of concentration (TC) = 14.52 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 9.800(Ac.) seems that this subarea is closer to 75% pervious. Runoff from this stream = 10.519(CFS) Time of concentration = 14.52 min. Rainfall intensity = 1.213(In/Hr) Area averaged loss rate (Fm) = 0.1000(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.300 to Point/Station 1.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 983.350(Ft.) Difference in elevation = 10.650(Ft.) Slope = 0.01183 s(%)= 1.18 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.321 min. Rainfall intensity = 1.055(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.133 Subarea runoff = 0.612(CFS) Total initial stream area = 4.370(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.900(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 983.350(Ft.) Downstream point elevation = 971.400(Ft.) Channel length thru subarea = 967.000(Ft.) Channel base width = 1.500(Ft.) Slope or 'Z' of left channel bank = 0.000 Slope or 'Z' of right channel bank = 2.667 Estimated mean flow rate at midpoint of channel = 0.644(CFS) Manning's 'N' = 0.015 Maximum depth of channel = 0.500(Ft.) Flow(q) thru subarea = 0.644(CFS) Depth of flow = 0.144(Ft.), Average velocity = 2.654(Ft/s) Channel flow top width = 1.883(Ft.) Flow Velocity = 2.65(Ft/s) Travel time = 6.07 min. Time of concentration = 24.39 min. Critical depth = 0.170(Ft.) Adding area flow to channel Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Rainfall intensity = 0.889(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.090 Subarea runoff = 0.939(CFS) for 15.010(Ac.) Total runoff = 1.550(CFS) Effective area this stream = 19.38(Ac.) Total Study Area (Main Stream No. 2) = 29.18(Ac.) Area averaged Fm value = 0.900(In/Hr) Depth of flow = 0.241(Ft.), Average velocity = 3.525(Ft/s) Critical depth = 0.293(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 19.380(Ac.) Runoff from this stream = 1.550(CFS) Time of concentration = 24.39 min. Rainfall intensity = 0.889(In/Hr) Area averaged loss rate (Fm) = 0.9000(In/Hr) Area averaged Pervious ratio (Ap) = 0.9000 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 10.52 9.800 14.52 0.100 1.213 2 1.55 19.380 24.39 0.900 0.889 Qmax(1) = 1.000 * 1.000 * 10.519) + Fm Value exceeds Rainfall Intensity in one of the streams Summing flow rates for conflunce solution 1.000 * 0.595 * 1.550) + = 11.442 Qmax(2) = 0.709 * 1.000 * 10.519) + 1.000 * 1.000 * 1.550) + = 9.004 Total of 2 main streams to confluence: Flow rates before confluence point: 11.519 2.550 Maximum flow rates at confluence using above data: 11.442 9.004 Area of streams before confluence: 9.800 19.380 Effective area values after confluence: 21.338 29.180 Results of confluence: Total flow rate = 11.442(CFS) Time of concentration = 14.523 min. Effective stream area after confluence = 21.338(Ac.) Study area average Pervious fraction(Ap) = 0.631 Study area average soil loss rate(Fm) = 0.631(In/Hr) Study area total = 29.18(Ac.) End of computations, Total Study Area = 29.18 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.631 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 10/18/22 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 2 YEAR, RATIONAL METHOD PRE-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 2.0 Computed rainfall intensity: Storm year = 2.00 1 hour rainfall = 0.518 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 2.200 to Point/Station 2.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Initial subarea data: Initial area flow distance = 973.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 980.050(Ft.) Difference in elevation = 13.950(Ft.) Slope = 0.01434 s(%)= 1.43 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.189 min. Rainfall intensity = 1.060(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.136 Subarea runoff = 1.184(CFS) Total initial stream area = 8.220(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.900(In/Hr) End of computations, Total Study Area = 8.22 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.900 Area averaged SCS curve number = 32.0 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.2 RATIONAL METHOD ANALYSIS PRE-DEVELOPMENT CONDITIONS – 10 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 10 YEAR, RATIONAL METHOD PRE-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 5.0 Computed rainfall intensity: Storm year = 5.00 1 hour rainfall = 0.684 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.000 to Point/Station 1.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.100(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 1000.910(Ft.) Bottom (of initial area) elevation = 987.110(Ft.) Difference in elevation = 13.800(Ft.) Slope = 0.01533 s(%)= 1.53 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.652 min. Rainfall intensity = 1.930(In/Hr) for a 5.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.853 Subarea runoff = 8.283(CFS) Total initial stream area = 5.030(Ac.) Pervious area fraction = 0.100 Initial area Fm value = 0.100(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.100 to Point/Station 1.200 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 987.110(Ft.) Note: Per City of Fontana Master Storm Drain Plan, the 10-year pre-condition flow rates shall be calculated using 5-year rainfall Seems to be 1.00. Check all existing condition pervious area ratios. Downstream point elevation = 980.950(Ft.) Channel length thru subarea = 434.000(Ft.) Channel base width = 10.000(Ft.) Slope or 'Z' of left channel bank = 100.000 Slope or 'Z' of right channel bank = 100.000 Estimated mean flow rate at midpoint of channel = 11.323(CFS) Manning's 'N' = 0.011 Maximum depth of channel = 1.000(Ft.) Flow(q) thru subarea = 11.323(CFS) Depth of flow = 0.144(Ft.), Average velocity = 3.239(Ft/s) Channel flow top width = 38.706(Ft.) Flow Velocity = 3.24(Ft/s) Travel time = 2.23 min. Time of concentration = 12.89 min. Critical depth = 0.195(Ft.) Adding area flow to channel COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.100(In/Hr) Rainfall intensity = 1.721(In/Hr) for a 5.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.848 Subarea runoff = 6.018(CFS) for 4.770(Ac.) Total runoff = 14.301(CFS) Effective area this stream = 9.80(Ac.) Total Study Area (Main Stream No. 1) = 9.80(Ac.) Area averaged Fm value = 0.100(In/Hr) Depth of flow = 0.160(Ft.), Average velocity = 3.443(Ft/s) Critical depth = 0.219(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.350(Ft.) Downstream point/station elevation = 959.400(Ft.) Pipe length = 623.08(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 14.301(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 14.301(CFS) Normal flow depth in pipe = 14.93(In.) Flow top width inside pipe = 19.04(In.) Critical Depth = 16.85(In.) Pipe flow velocity = 7.82(Ft/s) Travel time through pipe = 1.33 min. Time of concentration (TC) = 14.21 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 9.800(Ac.) Runoff from this stream = 14.301(CFS) Time of concentration = 14.21 min. Rainfall intensity = 1.623(In/Hr) Area averaged loss rate (Fm) = 0.1000(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.300 to Point/Station 1.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 983.350(Ft.) Difference in elevation = 10.650(Ft.) Slope = 0.01183 s(%)= 1.18 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.321 min. Rainfall intensity = 1.394(In/Hr) for a 5.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.319 Subarea runoff = 1.942(CFS) Total initial stream area = 4.370(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.900(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 983.350(Ft.) Downstream point elevation = 971.400(Ft.) Channel length thru subarea = 967.000(Ft.) Channel base width = 1.500(Ft.) Slope or 'Z' of left channel bank = 0.000 Slope or 'Z' of right channel bank = 2.667 Estimated mean flow rate at midpoint of channel = 4.139(CFS) Manning's 'N' = 0.015 Maximum depth of channel = 0.500(Ft.) Flow(q) thru subarea = 4.139(CFS) Depth of flow = 0.425(Ft.), Average velocity = 4.714(Ft/s) Channel flow top width = 2.633(Ft.) Flow Velocity = 4.71(Ft/s) Travel time = 3.42 min. Time of concentration = 21.74 min. Critical depth = 0.523(Ft.) Adding area flow to channel Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Rainfall intensity = 1.258(In/Hr) for a 5.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.256 Subarea runoff = 4.298(CFS) for 15.010(Ac.) Total runoff = 6.240(CFS) Effective area this stream = 19.38(Ac.) Total Study Area (Main Stream No. 2) = 29.18(Ac.) Area averaged Fm value = 0.900(In/Hr) Depth of flow = 0.528(Ft.), Average velocity = 5.363(Ft/s) !!Warning: Water is above left or right bank elevations ERROR - Channel depth exceeds maximum allowable depth Critical depth = 0.648(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 19.380(Ac.) Runoff from this stream = 6.240(CFS) Time of concentration = 21.74 min. Rainfall intensity = 1.258(In/Hr) Area averaged loss rate (Fm) = 0.9000(In/Hr) Area averaged Pervious ratio (Ap) = 0.9000 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 14.30 9.800 14.21 0.100 1.623 2 6.24 19.380 21.74 0.900 1.258 Qmax(1) = 1.000 * 1.000 * 14.301) + 2.021 * 0.654 * 6.240) + = 22.546 Qmax(2) = 0.760 * 1.000 * 14.301) + 1.000 * 1.000 * 6.240) + = 17.111 Total of 2 main streams to confluence: Flow rates before confluence point: 15.301 7.240 Maximum flow rates at confluence using above data: 22.546 17.111 Area of streams before confluence: 9.800 19.380 Effective area values after confluence: 22.471 29.180 Results of confluence: Total flow rate = 22.546(CFS) Time of concentration = 14.214 min. Effective stream area after confluence = 22.471(Ac.) Study area average Pervious fraction(Ap) = 0.631 Study area average soil loss rate(Fm) = 0.631(In/Hr) Study area total = 29.18(Ac.) End of computations, Total Study Area = 29.18 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.631 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 10 YEAR, RATIONAL METHOD PRE-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 5.0 Computed rainfall intensity: Storm year = 5.00 1 hour rainfall = 0.684 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 2.200 to Point/Station 2.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.900(In/Hr) Initial subarea data: Initial area flow distance = 973.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 980.050(Ft.) Difference in elevation = 13.950(Ft.) Slope = 0.01434 s(%)= 1.43 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.189 min. Rainfall intensity = 1.400(In/Hr) for a 5.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.321 Subarea runoff = 3.697(CFS) Total initial stream area = 8.220(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.900(In/Hr) End of computations, Total Study Area = 8.22 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.900 Area averaged SCS curve number = 32.0 Note: Per City of Fontana Master Storm Drain Plan, the 10-year pre-condition flow rates shall be calculated using 5-year rainfall PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.3 RATIONAL METHOD ANALYSIS PRE-DEVELOPMENT CONDITIONS – 25 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 25 YEAR, RATIONAL METHOD PRE-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0 Computed rainfall intensity: Storm year = 10.00 1 hour rainfall = 0.823 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.000 to Point/Station 1.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 1000.910(Ft.) Bottom (of initial area) elevation = 987.110(Ft.) Difference in elevation = 13.800(Ft.) Slope = 0.01533 s(%)= 1.53 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.652 min. Rainfall intensity = 2.322(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.862 Subarea runoff = 10.068(CFS) Total initial stream area = 5.030(Ac.) Pervious area fraction = 0.100 Initial area Fm value = 0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.100 to Point/Station 1.200 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 987.110(Ft.) Downstream point elevation = 980.950(Ft.) Note: Per City of Fontana Master Storm Drain Plan, the 25-year pre-condition flow rates shall be calculated using 10-year rainfall Channel length thru subarea = 434.000(Ft.) Channel base width = 10.000(Ft.) Slope or 'Z' of left channel bank = 100.000 Slope or 'Z' of right channel bank = 100.000 Estimated mean flow rate at midpoint of channel = 13.821(CFS) Manning's 'N' = 0.011 Maximum depth of channel = 1.000(Ft.) Flow(q) thru subarea = 13.821(CFS) Depth of flow = 0.157(Ft.), Average velocity = 3.413(Ft/s) Channel flow top width = 41.472(Ft.) Flow Velocity = 3.41(Ft/s) Travel time = 2.12 min. Time of concentration = 12.77 min. Critical depth = 0.215(Ft.) Adding area flow to channel COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Rainfall intensity = 2.082(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.858 Subarea runoff = 7.435(CFS) for 4.770(Ac.) Total runoff = 17.503(CFS) Effective area this stream = 9.80(Ac.) Total Study Area (Main Stream No. 1) = 9.80(Ac.) Area averaged Fm value = 0.098(In/Hr) Depth of flow = 0.175(Ft.), Average velocity = 3.629(Ft/s) Critical depth = 0.240(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.350(Ft.) Downstream point/station elevation = 959.400(Ft.) Pipe length = 623.08(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 17.503(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 17.503(CFS) Normal flow depth in pipe = 15.26(In.) Flow top width inside pipe = 23.10(In.) Critical Depth = 18.09(In.) Pipe flow velocity = 8.31(Ft/s) Travel time through pipe = 1.25 min. Time of concentration (TC) = 14.02 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 9.800(Ac.) Runoff from this stream = 17.503(CFS) Time of concentration = 14.02 min. Rainfall intensity = 1.969(In/Hr) Area averaged loss rate (Fm) = 0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.300 to Point/Station 1.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 983.350(Ft.) Difference in elevation = 10.650(Ft.) Slope = 0.01183 s(%)= 1.18 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.321 min. Rainfall intensity = 1.677(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.428 Subarea runoff = 3.134(CFS) Total initial stream area = 4.370(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.880(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 983.350(Ft.) Downstream point elevation = 971.400(Ft.) Channel length thru subarea = 967.000(Ft.) Channel base width = 1.500(Ft.) Slope or 'Z' of left channel bank = 0.000 Slope or 'Z' of right channel bank = 2.667 Estimated mean flow rate at midpoint of channel = 7.363(CFS) Manning's 'N' = 0.015 Maximum depth of channel = 0.500(Ft.) Flow(q) thru subarea = 7.363(CFS) Depth of flow = 0.571(Ft.), Average velocity = 5.730(Ft/s) !!Warning: Water is above left or right bank elevations Channel flow top width = 2.834(Ft.) Flow Velocity = 5.73(Ft/s) Travel time = 2.81 min. Time of concentration = 21.13 min. Critical depth = 0.711(Ft.) ERROR - Channel depth exceeds maximum allowable depth Adding area flow to channel Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Rainfall intensity = 1.539(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.385 Subarea runoff = 8.364(CFS) for 15.010(Ac.) Total runoff = 11.498(CFS) Effective area this stream = 19.38(Ac.) Total Study Area (Main Stream No. 2) = 29.18(Ac.) Area averaged Fm value = 0.880(In/Hr) Depth of flow = 0.710(Ft.), Average velocity = 6.848(Ft/s) !!Warning: Water is above left or right bank elevations ERROR - Channel depth exceeds maximum allowable depth Critical depth = 0.922(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 19.380(Ac.) Runoff from this stream = 11.498(CFS) Time of concentration = 21.13 min. Rainfall intensity = 1.539(In/Hr) Area averaged loss rate (Fm) = 0.8800(In/Hr) Area averaged Pervious ratio (Ap) = 0.9000 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 17.50 9.800 14.02 0.098 1.969 2 11.50 19.380 21.13 0.880 1.539 Qmax(1) = 1.000 * 1.000 * 17.503) + 1.652 * 0.663 * 11.498) + = 30.103 Qmax(2) = 0.770 * 1.000 * 17.503) + 1.000 * 1.000 * 11.498) + = 24.983 Total of 2 main streams to confluence: Flow rates before confluence point: 18.503 12.498 Maximum flow rates at confluence using above data: 30.103 24.983 Area of streams before confluence: 9.800 19.380 Effective area values after confluence: 22.658 29.180 Results of confluence: Total flow rate = 30.103(CFS) Time of concentration = 14.022 min. Effective stream area after confluence = 22.658(Ac.) Study area average Pervious fraction(Ap) = 0.631 Study area average soil loss rate(Fm) = 0.617(In/Hr) Study area total = 29.18(Ac.) End of computations, Total Study Area = 29.18 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.631 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 25 YEAR, RATIONAL METHOD PRE-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0 Computed rainfall intensity: Storm year = 10.00 1 hour rainfall = 0.823 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 2.200 to Point/Station 2.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Initial subarea data: Initial area flow distance = 973.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 980.050(Ft.) Difference in elevation = 13.950(Ft.) Slope = 0.01434 s(%)= 1.43 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.189 min. Rainfall intensity = 1.684(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.430 Subarea runoff = 5.949(CFS) Total initial stream area = 8.220(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.880(In/Hr) End of computations, Total Study Area = 8.22 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.900 Area averaged SCS curve number = 32.0 Note: Per City of Fontana Master Storm Drain Plan, the 25-year pre-condition flow rates shall be calculated using 10-year rainfall PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.4 RATIONAL METHOD ANALYSIS PRE-DEVELOPMENT CONDITIONS – 100 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 100 YEAR, RATIONAL METHOD PRE-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 25.0 Computed rainfall intensity: Storm year = 25.00 1 hour rainfall = 1.020 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.000 to Point/Station 1.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 1000.910(Ft.) Bottom (of initial area) elevation = 987.110(Ft.) Difference in elevation = 13.800(Ft.) Slope = 0.01533 s(%)= 1.53 TC = k(0.304)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.652 min. Rainfall intensity = 2.878(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.869 Subarea runoff = 12.584(CFS) Total initial stream area = 5.030(Ac.) Pervious area fraction = 0.100 Initial area Fm value = 0.098(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.100 to Point/Station 1.200 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 987.110(Ft.) Downstream point elevation = 980.950(Ft.) Note: Per City of Fontana Master Storm Drain Plan, the 100-year pre-condition flow rates shall be calculated using 25-year rainfall Channel length thru subarea = 434.000(Ft.) Channel base width = 10.000(Ft.) Slope or 'Z' of left channel bank = 100.000 Slope or 'Z' of right channel bank = 100.000 Estimated mean flow rate at midpoint of channel = 17.349(CFS) Manning's 'N' = 0.011 Maximum depth of channel = 1.000(Ft.) Flow(q) thru subarea = 17.349(CFS) Depth of flow = 0.175(Ft.), Average velocity = 3.620(Ft/s) Channel flow top width = 44.908(Ft.) Flow Velocity = 3.62(Ft/s) Travel time = 2.00 min. Time of concentration = 12.65 min. Critical depth = 0.240(Ft.) Adding area flow to channel COMMERCIAL subarea type Decimal fraction soil group A = 1.000 Decimal fraction soil group B = 0.000 Decimal fraction soil group C = 0.000 Decimal fraction soil group D = 0.000 SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1000 Max loss rate(Fm)= 0.098(In/Hr) Rainfall intensity = 2.596(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.866 Subarea runoff = 9.446(CFS) for 4.770(Ac.) Total runoff = 22.031(CFS) Effective area this stream = 9.80(Ac.) Total Study Area (Main Stream No. 1) = 9.80(Ac.) Area averaged Fm value = 0.098(In/Hr) Depth of flow = 0.194(Ft.), Average velocity = 3.851(Ft/s) Critical depth = 0.268(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.350(Ft.) Downstream point/station elevation = 959.400(Ft.) Pipe length = 623.08(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 22.031(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 22.031(CFS) Normal flow depth in pipe = 18.19(In.) Flow top width inside pipe = 20.56(In.) Critical Depth = 20.12(In.) Pipe flow velocity = 8.63(Ft/s) Travel time through pipe = 1.20 min. Time of concentration (TC) = 13.85 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.200 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 9.800(Ac.) Runoff from this stream = 22.031(CFS) Time of concentration = 13.85 min. Rainfall intensity = 2.458(In/Hr) Area averaged loss rate (Fm) = 0.0978(In/Hr) Area averaged Pervious ratio (Ap) = 0.1000 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.300 to Point/Station 1.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Initial subarea data: Initial area flow distance = 900.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 983.350(Ft.) Difference in elevation = 10.650(Ft.) Slope = 0.01183 s(%)= 1.18 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.321 min. Rainfall intensity = 2.078(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.519 Subarea runoff = 4.713(CFS) Total initial stream area = 4.370(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.880(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** IMPROVED CHANNEL TRAVEL TIME **** ______________________________________________________________________ Upstream point elevation = 983.350(Ft.) Downstream point elevation = 971.400(Ft.) Channel length thru subarea = 967.000(Ft.) Channel base width = 1.500(Ft.) Slope or 'Z' of left channel bank = 0.000 Slope or 'Z' of right channel bank = 2.667 Estimated mean flow rate at midpoint of channel = 11.589(CFS) Manning's 'N' = 0.015 Maximum depth of channel = 0.500(Ft.) Flow(q) thru subarea = 11.589(CFS) Depth of flow = 0.713(Ft.), Average velocity = 6.870(Ft/s) !!Warning: Water is above left or right bank elevations Channel flow top width = 2.834(Ft.) Flow Velocity = 6.87(Ft/s) Travel time = 2.35 min. Time of concentration = 20.67 min. Critical depth = 0.922(Ft.) ERROR - Channel depth exceeds maximum allowable depth Adding area flow to channel Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Rainfall intensity = 1.933(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area,(total area with modified rational method)(Q=KCIA) is C = 0.490 Subarea runoff = 13.660(CFS) for 15.010(Ac.) Total runoff = 18.373(CFS) Effective area this stream = 19.38(Ac.) Total Study Area (Main Stream No. 2) = 29.18(Ac.) Area averaged Fm value = 0.880(In/Hr) Depth of flow = 0.903(Ft.), Average velocity = 8.260(Ft/s) !!Warning: Water is above left or right bank elevations ERROR - Channel depth exceeds maximum allowable depth Critical depth = 1.211(Ft.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 1.400 to Point/Station 1.500 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 19.380(Ac.) Runoff from this stream = 18.373(CFS) Time of concentration = 20.67 min. Rainfall intensity = 1.933(In/Hr) Area averaged loss rate (Fm) = 0.8800(In/Hr) Area averaged Pervious ratio (Ap) = 0.9000 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 22.03 9.800 13.85 0.098 2.458 2 18.37 19.380 20.67 0.880 1.933 Qmax(1) = 1.000 * 1.000 * 22.031) + 1.498 * 0.670 * 18.373) + = 40.478 Qmax(2) = 0.778 * 1.000 * 22.031) + 1.000 * 1.000 * 18.373) + = 35.508 Total of 2 main streams to confluence: Flow rates before confluence point: 23.031 19.373 Maximum flow rates at confluence using above data: 40.478 35.508 Area of streams before confluence: 9.800 19.380 Effective area values after confluence: 22.791 29.180 Results of confluence: Total flow rate = 40.478(CFS) Time of concentration = 13.853 min. Effective stream area after confluence = 22.791(Ac.) Study area average Pervious fraction(Ap) = 0.631 Study area average soil loss rate(Fm) = 0.617(In/Hr) Study area total = 29.18(Ac.) End of computations, Total Study Area = 29.18 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.631 Area averaged SCS curve number = 32.0 p San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVENUE 100 YEAR, RATIONAL METHOD PRE-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 25.0 Computed rainfall intensity: Storm year = 25.00 1 hour rainfall = 1.020 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 2.200 to Point/Station 2.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.9000 Max loss rate(Fm)= 0.880(In/Hr) Initial subarea data: Initial area flow distance = 973.000(Ft.) Top (of initial area) elevation = 994.000(Ft.) Bottom (of initial area) elevation = 980.050(Ft.) Difference in elevation = 13.950(Ft.) Slope = 0.01434 s(%)= 1.43 TC = k(0.496)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 18.189 min. Rainfall intensity = 2.087(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.521 Subarea runoff = 8.932(CFS) Total initial stream area = 8.220(Ac.) Pervious area fraction = 0.900 Initial area Fm value = 0.880(In/Hr) End of computations, Total Study Area = 8.22 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.900 Area averaged SCS curve number = 32.0 Note: Per City of Fontana Master Storm Drain Plan, the 100-year pre-condition flow rates shall be calculated using 25-year rainfall PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.5 RATIONAL METHOD ANALYSIS POST-DEVELOPMENT CONDITIONS – 2 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 2 YEAR. RATIONAL METHOD POST-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 2.0 Computed rainfall intensity: Storm year = 2.00 1 hour rainfall = 0.518 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.000 to Point/Station 3.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.4000 Max loss rate(Fm)= 0.400(In/Hr) Initial subarea data: Initial area flow distance = 161.250(Ft.) Top (of initial area) elevation = 999.000(Ft.) Bottom (of initial area) elevation = 990.820(Ft.) Difference in elevation = 8.180(Ft.) Slope = 0.05073 s(%)= 5.07 TC = k(0.373)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.174 min. Rainfall intensity = 2.254(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.740 Subarea runoff = 0.634(CFS) Total initial stream area = 0.380(Ac.) Pervious area fraction = 0.400 Initial area Fm value = 0.400(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 985.820(Ft.) Downstream point/station elevation = 984.570(Ft.) Pipe length = 209.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 0.634(CFS) Nearest computed pipe diameter = 9.00(In.) Calculated individual pipe flow = 0.634(CFS) Normal flow depth in pipe = 4.48(In.) Flow top width inside pipe = 9.00(In.) Critical Depth = 4.34(In.) Pipe flow velocity = 2.89(Ft/s) Travel time through pipe = 1.21 min. Time of concentration (TC) = 6.38 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.380(Ac.) Runoff from this stream = 0.634(CFS) Time of concentration = 6.38 min. Rainfall intensity = 1.988(In/Hr) Area averaged loss rate (Fm) = 0.4000(In/Hr) Area averaged Pervious ratio (Ap) = 0.4000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.390(In/Hr) Initial subarea data: Initial area flow distance = 163.100(Ft.) Top (of initial area) elevation = 997.080(Ft.) Bottom (of initial area) elevation = 990.760(Ft.) Difference in elevation = 6.320(Ft.) Slope = 0.03875 s(%)= 3.87 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.449 min. Rainfall intensity = 2.185(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.739 Subarea runoff = 0.598(CFS) Total initial stream area = 0.370(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.390(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.370(Ac.) Runoff from this stream = 0.598(CFS) Time of concentration = 5.45 min. Rainfall intensity = 2.185(In/Hr) Area averaged loss rate (Fm) = 0.3900(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 0.63 0.380 6.38 0.400 1.988 2 0.60 0.370 5.45 0.390 2.185 Qmax(1) = 1.000 * 1.000 * 0.634) + 0.890 * 1.000 * 0.598) + = 1.166 Qmax(2) = 1.124 * 0.854 * 0.634) + 1.000 * 1.000 * 0.598) + = 1.207 Total of 2 streams to confluence: Flow rates before confluence point: 0.634 0.598 Maximum flow rates at confluence using above data: 1.166 1.207 Area of streams before confluence: 0.380 0.370 Effective area values after confluence: 0.750 0.695 Results of confluence: Total flow rate = 1.207(CFS) Time of concentration = 5.449 min. Effective stream area after confluence = 0.695(Ac.) Study area average Pervious fraction(Ap) = 0.395 Study area average soil loss rate(Fm) = 0.395(In/Hr) Study area total (this main stream) = 0.75(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 984.570(Ft.) Downstream point/station elevation = 983.370(Ft.) Pipe length = 200.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.207(CFS) Nearest computed pipe diameter = 9.00(In.) Calculated individual pipe flow = 1.207(CFS) Normal flow depth in pipe = 6.95(In.) Flow top width inside pipe = 7.55(In.) Critical Depth = 6.07(In.) Pipe flow velocity = 3.30(Ft/s) Travel time through pipe = 1.01 min. Time of concentration (TC) = 6.46 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.695(Ac.) Runoff from this stream = 1.207(CFS) Time of concentration = 6.46 min. Rainfall intensity = 1.973(In/Hr) Area averaged loss rate (Fm) = 0.3951(In/Hr) Area averaged Pervious ratio (Ap) = 0.3951 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.3800 Max loss rate(Fm)= 0.380(In/Hr) Initial subarea data: Initial area flow distance = 161.380(Ft.) Top (of initial area) elevation = 995.070(Ft.) Bottom (of initial area) elevation = 990.650(Ft.) Difference in elevation = 4.420(Ft.) Slope = 0.02739 s(%)= 2.74 TC = k(0.368)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.777 min. Rainfall intensity = 2.110(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.738 Subarea runoff = 0.654(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.380 Initial area Fm value = 0.380(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.420(Ac.) Runoff from this stream = 0.654(CFS) Time of concentration = 5.78 min. Rainfall intensity = 2.110(In/Hr) Area averaged loss rate (Fm) = 0.3800(In/Hr) Area averaged Pervious ratio (Ap) = 0.3800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.21 0.695 6.46 0.395 1.973 2 0.65 0.420 5.78 0.380 2.110 Qmax(1) = 1.000 * 1.000 * 1.207) + 0.921 * 1.000 * 0.654) + = 1.809 Qmax(2) = 1.087 * 0.894 * 1.207) + 1.000 * 1.000 * 0.654) + = 1.826 Total of 2 streams to confluence: Flow rates before confluence point: 1.207 0.654 Maximum flow rates at confluence using above data: 1.809 1.826 Area of streams before confluence: 0.695 0.420 Effective area values after confluence: 1.115 1.041 Results of confluence: Total flow rate = 1.826(CFS) Time of concentration = 5.777 min. Effective stream area after confluence = 1.041(Ac.) Study area average Pervious fraction(Ap) = 0.389 Study area average soil loss rate(Fm) = 0.389(In/Hr) Study area total (this main stream) = 1.11(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 983.370(Ft.) Downstream point/station elevation = 981.410(Ft.) Pipe length = 327.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.826(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 1.826(CFS) Normal flow depth in pipe = 7.13(In.) Flow top width inside pipe = 11.78(In.) Critical Depth = 6.91(In.) Pipe flow velocity = 3.75(Ft/s) Travel time through pipe = 1.45 min. Time of concentration (TC) = 7.23 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.041(Ac.) Runoff from this stream = 1.826(CFS) Time of concentration = 7.23 min. Rainfall intensity = 1.844(In/Hr) Area averaged loss rate (Fm) = 0.3894(In/Hr) Area averaged Pervious ratio (Ap) = 0.3894 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.390(In/Hr) Initial subarea data: Initial area flow distance = 346.050(Ft.) Top (of initial area) elevation = 991.360(Ft.) Bottom (of initial area) elevation = 985.560(Ft.) Difference in elevation = 5.800(Ft.) Slope = 0.01676 s(%)= 1.68 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.705 min. Rainfall intensity = 1.649(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.687 Subarea runoff = 0.884(CFS) Total initial stream area = 0.780(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.390(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.780(Ac.) Runoff from this stream = 0.884(CFS) Time of concentration = 8.71 min. Rainfall intensity = 1.649(In/Hr) Area averaged loss rate (Fm) = 0.3900(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.83 1.041 7.23 0.389 1.844 2 0.88 0.780 8.71 0.390 1.649 Qmax(1) = 1.000 * 1.000 * 1.826) + 1.154 * 0.830 * 0.884) + = 2.674 Qmax(2) = 0.866 * 1.000 * 1.826) + 1.000 * 1.000 * 0.884) + = 2.466 Total of 2 streams to confluence: Flow rates before confluence point: 1.826 0.884 Maximum flow rates at confluence using above data: 2.674 2.466 Area of streams before confluence: 1.041 0.780 Effective area values after confluence: 1.689 1.821 Results of confluence: Total flow rate = 2.674(CFS) Time of concentration = 7.229 min. Effective stream area after confluence = 1.689(Ac.) Study area average Pervious fraction(Ap) = 0.390 Study area average soil loss rate(Fm) = 0.390(In/Hr) Study area total (this main stream) = 1.82(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 981.410(Ft.) Downstream point/station elevation = 978.760(Ft.) Pipe length = 156.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 2.674(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 2.674(CFS) Normal flow depth in pipe = 6.53(In.) Flow top width inside pipe = 11.95(In.) Critical Depth = 8.41(In.) Pipe flow velocity = 6.12(Ft/s) Travel time through pipe = 0.42 min. Time of concentration (TC) = 7.65 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.689(Ac.) Runoff from this stream = 2.674(CFS) Time of concentration = 7.65 min. Rainfall intensity = 1.782(In/Hr) Area averaged loss rate (Fm) = 0.3897(In/Hr) Area averaged Pervious ratio (Ap) = 0.3897 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1800 Max loss rate(Fm)= 0.180(In/Hr) Initial subarea data: Initial area flow distance = 370.380(Ft.) Top (of initial area) elevation = 991.730(Ft.) Bottom (of initial area) elevation = 984.280(Ft.) Difference in elevation = 7.450(Ft.) Slope = 0.02011 s(%)= 2.01 TC = k(0.319)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.420 min. Rainfall intensity = 1.815(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.811 Subarea runoff = 2.620(CFS) Total initial stream area = 1.780(Ac.) Pervious area fraction = 0.180 Initial area Fm value = 0.180(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 1.780(Ac.) Runoff from this stream = 2.620(CFS) Time of concentration = 7.42 min. Rainfall intensity = 1.815(In/Hr) Area averaged loss rate (Fm) = 0.1800(In/Hr) Area averaged Pervious ratio (Ap) = 0.1800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 2.67 1.689 7.65 0.390 1.782 2 2.62 1.780 7.42 0.180 1.815 Qmax(1) = 1.000 * 1.000 * 2.674) + 0.980 * 1.000 * 2.620) + = 5.240 Qmax(2) = 1.024 * 0.969 * 2.674) + 1.000 * 1.000 * 2.620) + = 5.275 Total of 2 streams to confluence: Flow rates before confluence point: 2.674 2.620 Maximum flow rates at confluence using above data: 5.240 5.275 Area of streams before confluence: 1.689 1.780 Effective area values after confluence: 3.469 3.417 Results of confluence: Total flow rate = 5.275(CFS) Time of concentration = 7.420 min. Effective stream area after confluence = 3.417(Ac.) Study area average Pervious fraction(Ap) = 0.282 Study area average soil loss rate(Fm) = 0.282(In/Hr) Study area total (this main stream) = 3.47(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 978.760(Ft.) Downstream point/station elevation = 973.280(Ft.) Pipe length = 328.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 5.275(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 5.275(CFS) Normal flow depth in pipe = 8.65(In.) Flow top width inside pipe = 14.82(In.) Critical Depth = 11.17(In.) Pipe flow velocity = 7.20(Ft/s) Travel time through pipe = 0.76 min. Time of concentration (TC) = 8.18 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 3.417(Ac.) Runoff from this stream = 5.275(CFS) Time of concentration = 8.18 min. Rainfall intensity = 1.712(In/Hr) Area averaged loss rate (Fm) = 0.2821(In/Hr) Area averaged Pervious ratio (Ap) = 0.2821 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.040(In/Hr) Initial subarea data: Initial area flow distance = 456.790(Ft.) Top (of initial area) elevation = 987.140(Ft.) Bottom (of initial area) elevation = 980.860(Ft.) Difference in elevation = 6.280(Ft.) Slope = 0.01375 s(%)= 1.37 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.764 min. Rainfall intensity = 1.767(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.880 Subarea runoff = 8.221(CFS) Total initial stream area = 5.290(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.040(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 5.290(Ac.) Runoff from this stream = 8.221(CFS) Time of concentration = 7.76 min. Rainfall intensity = 1.767(In/Hr) Area averaged loss rate (Fm) = 0.0400(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 5.27 3.417 8.18 0.282 1.712 2 8.22 5.290 7.76 0.040 1.767 Qmax(1) = 1.000 * 1.000 * 5.275) + 0.969 * 1.000 * 8.221) + = 13.236 Qmax(2) = 1.038 * 0.949 * 5.275) + 1.000 * 1.000 * 8.221) + = 13.418 Total of 2 streams to confluence: Flow rates before confluence point: 5.275 8.221 Maximum flow rates at confluence using above data: 13.236 13.418 Area of streams before confluence: 3.417 5.290 Effective area values after confluence: 8.707 8.534 Results of confluence: Total flow rate = 13.418(CFS) Time of concentration = 7.764 min. Effective stream area after confluence = 8.534(Ac.) Study area average Pervious fraction(Ap) = 0.135 Study area average soil loss rate(Fm) = 0.135(In/Hr) Study area total (this main stream) = 8.71(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 973.280(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 485.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 13.418(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 13.418(CFS) Normal flow depth in pipe = 14.39(In.) Flow top width inside pipe = 14.41(In.) Critical Depth = 16.38(In.) Pipe flow velocity = 8.85(Ft/s) Travel time through pipe = 0.91 min. Time of concentration (TC) = 8.68 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 8.534(Ac.) Runoff from this stream = 13.418(CFS) Time of concentration = 8.68 min. Rainfall intensity = 1.653(In/Hr) Area averaged loss rate (Fm) = 0.1350(In/Hr) Area averaged Pervious ratio (Ap) = 0.1350 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.040(In/Hr) Initial subarea data: Initial area flow distance = 653.410(Ft.) Top (of initial area) elevation = 985.500(Ft.) Bottom (of initial area) elevation = 975.420(Ft.) Difference in elevation = 10.080(Ft.) Slope = 0.01543 s(%)= 1.54 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.756 min. Rainfall intensity = 1.644(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.878 Subarea runoff = 11.186(CFS) Total initial stream area = 7.750(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.040(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 7.750(Ac.) Runoff from this stream = 11.186(CFS) Time of concentration = 8.76 min. Rainfall intensity = 1.644(In/Hr) Area averaged loss rate (Fm) = 0.0400(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 13.42 8.534 8.68 0.135 1.653 2 11.19 7.750 8.76 0.040 1.644 Qmax(1) = 1.000 * 1.000 * 13.418) + 1.006 * 0.991 * 11.186) + = 24.566 Qmax(2) = 0.994 * 1.000 * 13.418) + 1.000 * 1.000 * 11.186) + = 24.526 Total of 2 streams to confluence: Flow rates before confluence point: 13.418 11.186 Maximum flow rates at confluence using above data: 24.566 24.526 Area of streams before confluence: 8.534 7.750 Effective area values after confluence: 16.215 16.284 Results of confluence: Total flow rate = 24.566(CFS) Time of concentration = 8.678 min. Effective stream area after confluence = 16.215(Ac.) Study area average Pervious fraction(Ap) = 0.090 Study area average soil loss rate(Fm) = 0.090(In/Hr) Study area total (this main stream) = 16.28(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 16.215(Ac.) Runoff from this stream = 24.566(CFS) Time of concentration = 8.68 min. Rainfall intensity = 1.653(In/Hr) Area averaged loss rate (Fm) = 0.0898(In/Hr) Area averaged Pervious ratio (Ap) = 0.0898 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.800 to Point/Station 3.900 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.5200 Max loss rate(Fm)= 0.520(In/Hr) Initial subarea data: Initial area flow distance = 160.000(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 980.790(Ft.) Difference in elevation = 2.810(Ft.) Slope = 0.01756 s(%)= 1.76 TC = k(0.403)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.883 min. Rainfall intensity = 1.899(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.654 Subarea runoff = 0.521(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.520 Initial area Fm value = 0.520(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 975.790(Ft.) Downstream point/station elevation = 972.540(Ft.) Pipe length = 372.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 0.521(CFS) Nearest computed pipe diameter = 6.00(In.) Calculated individual pipe flow = 0.521(CFS) Normal flow depth in pipe = 4.89(In.) Flow top width inside pipe = 4.66(In.) Critical Depth = 4.42(In.) Pipe flow velocity = 3.05(Ft/s) Travel time through pipe = 2.04 min. Time of concentration (TC) = 8.92 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 0.420(Ac.) Runoff from this stream = 0.521(CFS) Time of concentration = 8.92 min. Rainfall intensity = 1.626(In/Hr) Area averaged loss rate (Fm) = 0.5200(In/Hr) Area averaged Pervious ratio (Ap) = 0.5200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.1400 Max loss rate(Fm)= 0.140(In/Hr) Initial subarea data: Initial area flow distance = 534.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 981.360(Ft.) Difference in elevation = 6.250(Ft.) Slope = 0.01169 s(%)= 1.17 TC = k(0.309)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 9.280 min. Rainfall intensity = 1.587(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.821 Subarea runoff = 3.778(CFS) Total initial stream area = 2.900(Ac.) Pervious area fraction = 0.140 Initial area Fm value = 0.140(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.900(Ac.) Runoff from this stream = 3.778(CFS) Time of concentration = 9.28 min. Rainfall intensity = 1.587(In/Hr) Area averaged loss rate (Fm) = 0.1400(In/Hr) Area averaged Pervious ratio (Ap) = 0.1400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 0.52 0.420 8.92 0.520 1.626 2 3.78 2.900 9.28 0.140 1.587 Qmax(1) = 1.000 * 1.000 * 0.521) + 1.026 * 0.961 * 3.778) + = 4.248 Qmax(2) = 0.965 * 1.000 * 0.521) + 1.000 * 1.000 * 3.778) + = 4.281 Total of 2 streams to confluence: Flow rates before confluence point: 0.521 3.778 Maximum flow rates at confluence using above data: 4.248 4.281 Area of streams before confluence: 0.420 2.900 Effective area values after confluence: 3.207 3.320 Results of confluence: Total flow rate = 4.281(CFS) Time of concentration = 9.280 min. Effective stream area after confluence = 3.320(Ac.) Study area average Pervious fraction(Ap) = 0.188 Study area average soil loss rate(Fm) = 0.188(In/Hr) Study area total (this main stream) = 3.32(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 972.540(Ft.) Downstream point/station elevation = 968.390(Ft.) Pipe length = 475.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 4.281(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 4.281(CFS) Normal flow depth in pipe = 9.33(In.) Flow top width inside pipe = 14.55(In.) Critical Depth = 10.05(In.) Pipe flow velocity = 5.34(Ft/s) Travel time through pipe = 1.48 min. Time of concentration (TC) = 10.76 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 3.320(Ac.) Runoff from this stream = 4.281(CFS) Time of concentration = 10.76 min. Rainfall intensity = 1.452(In/Hr) Area averaged loss rate (Fm) = 0.1881(In/Hr) Area averaged Pervious ratio (Ap) = 0.1881 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0900 Max loss rate(Fm)= 0.090(In/Hr) Initial subarea data: Initial area flow distance = 689.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 980.590(Ft.) Difference in elevation = 7.020(Ft.) Slope = 0.01018 s(%)= 1.02 TC = k(0.297)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.143 min. Rainfall intensity = 1.505(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.846 Subarea runoff = 2.853(CFS) Total initial stream area = 2.240(Ac.) Pervious area fraction = 0.090 Initial area Fm value = 0.090(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.240(Ac.) Runoff from this stream = 2.853(CFS) Time of concentration = 10.14 min. Rainfall intensity = 1.505(In/Hr) Area averaged loss rate (Fm) = 0.0900(In/Hr) Area averaged Pervious ratio (Ap) = 0.0900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 4.28 3.320 10.76 0.188 1.452 2 2.85 2.240 10.14 0.090 1.505 Qmax(1) = 1.000 * 1.000 * 4.281) + 0.963 * 1.000 * 2.853) + = 7.027 Qmax(2) = 1.042 * 0.942 * 4.281) + 1.000 * 1.000 * 2.853) + = 7.055 Total of 2 streams to confluence: Flow rates before confluence point: 4.281 2.853 Maximum flow rates at confluence using above data: 7.027 7.055 Area of streams before confluence: 3.320 2.240 Effective area values after confluence: 5.560 5.368 Results of confluence: Total flow rate = 7.055(CFS) Time of concentration = 10.143 min. Effective stream area after confluence = 5.368(Ac.) Study area average Pervious fraction(Ap) = 0.149 Study area average soil loss rate(Fm) = 0.149(In/Hr) Study area total (this main stream) = 5.56(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 968.390(Ft.) Downstream point/station elevation = 966.540(Ft.) Pipe length = 211.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 7.055(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 7.055(CFS) Normal flow depth in pipe = 11.27(In.) Flow top width inside pipe = 17.42(In.) Critical Depth = 12.33(In.) Pipe flow velocity = 6.05(Ft/s) Travel time through pipe = 0.58 min. Time of concentration (TC) = 10.72 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 5.368(Ac.) Runoff from this stream = 7.055(CFS) Time of concentration = 10.72 min. Rainfall intensity = 1.456(In/Hr) Area averaged loss rate (Fm) = 0.1486(In/Hr) Area averaged Pervious ratio (Ap) = 0.1486 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.2700 Max loss rate(Fm)= 0.270(In/Hr) Initial subarea data: Initial area flow distance = 436.910(Ft.) Top (of initial area) elevation = 986.380(Ft.) Bottom (of initial area) elevation = 973.310(Ft.) Difference in elevation = 13.070(Ft.) Slope = 0.02991 s(%)= 2.99 TC = k(0.341)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.831 min. Rainfall intensity = 1.758(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.762 Subarea runoff = 1.312(CFS) Total initial stream area = 0.980(Ac.) Pervious area fraction = 0.270 Initial area Fm value = 0.270(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.980(Ac.) Runoff from this stream = 1.312(CFS) Time of concentration = 7.83 min. Rainfall intensity = 1.758(In/Hr) Area averaged loss rate (Fm) = 0.2700(In/Hr) Area averaged Pervious ratio (Ap) = 0.2700 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 7.05 5.368 10.72 0.149 1.456 2 1.31 0.980 7.83 0.270 1.758 Qmax(1) = 1.000 * 1.000 * 7.055) + 0.797 * 1.000 * 1.312) + = 8.100 Qmax(2) = 1.231 * 0.730 * 7.055) + 1.000 * 1.000 * 1.312) + = 7.655 Total of 2 streams to confluence: Flow rates before confluence point: 7.055 1.312 Maximum flow rates at confluence using above data: 8.100 7.655 Area of streams before confluence: 5.368 0.980 Effective area values after confluence: 6.348 4.901 Results of confluence: Total flow rate = 8.100(CFS) Time of concentration = 10.724 min. Effective stream area after confluence = 6.348(Ac.) Study area average Pervious fraction(Ap) = 0.167 Study area average soil loss rate(Fm) = 0.167(In/Hr) Study area total (this main stream) = 6.35(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.348(Ac.) Runoff from this stream = 8.100(CFS) Time of concentration = 10.72 min. Rainfall intensity = 1.456(In/Hr) Area averaged loss rate (Fm) = 0.1673(In/Hr) Area averaged Pervious ratio (Ap) = 0.1673 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0300 Max loss rate(Fm)= 0.030(In/Hr) Initial subarea data: Initial area flow distance = 276.950(Ft.) Top (of initial area) elevation = 986.510(Ft.) Bottom (of initial area) elevation = 973.530(Ft.) Difference in elevation = 12.980(Ft.) Slope = 0.04687 s(%)= 4.69 TC = k(0.282)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 4.930 min. Rainfall intensity = 2.320(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.888 Subarea runoff = 0.660(CFS) Total initial stream area = 0.320(Ac.) Pervious area fraction = 0.030 Initial area Fm value = 0.030(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.320(Ac.) Runoff from this stream = 0.660(CFS) Time of concentration = 4.93 min. Rainfall intensity = 2.320(In/Hr) Area averaged loss rate (Fm) = 0.0300(In/Hr) Area averaged Pervious ratio (Ap) = 0.0300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 8.10 6.348 10.72 0.167 1.456 2 0.66 0.320 4.93 0.030 2.320 Qmax(1) = 1.000 * 1.000 * 8.100) + 0.622 * 1.000 * 0.660) + = 8.511 Qmax(2) = 1.671 * 0.460 * 8.100) + 1.000 * 1.000 * 0.660) + = 6.883 Total of 2 streams to confluence: Flow rates before confluence point: 8.100 0.660 Maximum flow rates at confluence using above data: 8.511 6.883 Area of streams before confluence: 6.348 0.320 Effective area values after confluence: 6.668 3.239 Results of confluence: Total flow rate = 8.511(CFS) Time of concentration = 10.724 min. Effective stream area after confluence = 6.668(Ac.) Study area average Pervious fraction(Ap) = 0.161 Study area average soil loss rate(Fm) = 0.161(In/Hr) Study area total (this main stream) = 6.67(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.668(Ac.) Runoff from this stream = 8.511(CFS) Time of concentration = 10.72 min. Rainfall intensity = 1.456(In/Hr) Area averaged loss rate (Fm) = 0.1607(In/Hr) Area averaged Pervious ratio (Ap) = 0.1607 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.2300 Max loss rate(Fm)= 0.230(In/Hr) Initial subarea data: Initial area flow distance = 333.920(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 974.620(Ft.) Difference in elevation = 8.980(Ft.) Slope = 0.02689 s(%)= 2.69 TC = k(0.331)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.977 min. Rainfall intensity = 1.884(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.790 Subarea runoff = 1.235(CFS) Total initial stream area = 0.830(Ac.) Pervious area fraction = 0.230 Initial area Fm value = 0.230(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.830(Ac.) Runoff from this stream = 1.235(CFS) Time of concentration = 6.98 min. Rainfall intensity = 1.884(In/Hr) Area averaged loss rate (Fm) = 0.2300(In/Hr) Area averaged Pervious ratio (Ap) = 0.2300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 8.51 6.668 10.72 0.161 1.456 2 1.24 0.830 6.98 0.230 1.884 Qmax(1) = 1.000 * 1.000 * 8.511) + 0.741 * 1.000 * 1.235) + = 9.426 Qmax(2) = 1.331 * 0.651 * 8.511) + 1.000 * 1.000 * 1.235) + = 8.604 Total of 2 streams to confluence: Flow rates before confluence point: 8.511 1.235 Maximum flow rates at confluence using above data: 9.426 8.604 Area of streams before confluence: 6.668 0.830 Effective area values after confluence: 7.498 5.168 Results of confluence: Total flow rate = 9.426(CFS) Time of concentration = 10.724 min. Effective stream area after confluence = 7.498(Ac.) Study area average Pervious fraction(Ap) = 0.168 Study area average soil loss rate(Fm) = 0.168(In/Hr) Study area total (this main stream) = 7.50(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.540(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 176.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 9.426(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 9.426(CFS) Normal flow depth in pipe = 14.13(In.) Flow top width inside pipe = 14.79(In.) Critical Depth = 14.23(In.) Pipe flow velocity = 6.33(Ft/s) Travel time through pipe = 0.46 min. Time of concentration (TC) = 11.19 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 7.498(Ac.) Runoff from this stream = 9.426(CFS) Time of concentration = 11.19 min. Rainfall intensity = 1.419(In/Hr) Area averaged loss rate (Fm) = 0.1684(In/Hr) Area averaged Pervious ratio (Ap) = 0.1684 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 24.57 16.215 8.68 0.090 1.653 2 9.43 7.498 11.19 0.168 1.419 Qmax(1) = 1.000 * 1.000 * 24.566) + 1.187 * 0.776 * 9.426) + = 33.243 Qmax(2) = 0.851 * 1.000 * 24.566) + 1.000 * 1.000 * 9.426) + = 30.320 Total of 2 main streams to confluence: Flow rates before confluence point: 25.566 10.426 Maximum flow rates at confluence using above data: 33.243 30.320 Area of streams before confluence: 16.215 7.498 Effective area values after confluence: 22.031 23.713 Results of confluence: Total flow rate = 33.243(CFS) Time of concentration = 8.678 min. Effective stream area after confluence = 22.031(Ac.) Study area average Pervious fraction(Ap) = 0.115 Study area average soil loss rate(Fm) = 0.115(In/Hr) Study area total = 23.71(Ac.) End of computations, Total Study Area = 24.46 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.118 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 2 YEAR, RATIONAL METHOD POST-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 2.0 Computed rainfall intensity: Storm year = 2.00 1 hour rainfall = 0.518 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 1 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.000 to Point/Station 5.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.3100 Max loss rate(Fm)= 0.310(In/Hr) Initial subarea data: Initial area flow distance = 228.380(Ft.) Top (of initial area) elevation = 1001.000(Ft.) Bottom (of initial area) elevation = 987.460(Ft.) Difference in elevation = 13.540(Ft.) Slope = 0.05929 s(%)= 5.93 TC = k(0.351)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.421 min. Rainfall intensity = 2.192(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.773 Subarea runoff = 3.251(CFS) Total initial stream area = 1.920(Ac.) Pervious area fraction = 0.310 Initial area Fm value = 0.310(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 982.460(Ft.) Downstream point/station elevation = 977.660(Ft.) Pipe length = 365.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 3.251(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 3.251(CFS) Normal flow depth in pipe = 8.09(In.) Flow top width inside pipe = 11.25(In.) Critical Depth = 9.26(In.) Pipe flow velocity = 5.77(Ft/s) Travel time through pipe = 1.05 min. Time of concentration (TC) = 6.48 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 1.920(Ac.) Runoff from this stream = 3.251(CFS) Time of concentration = 6.48 min. Rainfall intensity = 1.970(In/Hr) Area averaged loss rate (Fm) = 0.3100(In/Hr) Area averaged Pervious ratio (Ap) = 0.3100 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.040(In/Hr) Initial subarea data: Initial area flow distance = 487.230(Ft.) Top (of initial area) elevation = 996.020(Ft.) Bottom (of initial area) elevation = 985.200(Ft.) Difference in elevation = 10.820(Ft.) Slope = 0.02221 s(%)= 2.22 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.239 min. Rainfall intensity = 1.843(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.880 Subarea runoff = 7.284(CFS) Total initial stream area = 4.490(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.040(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 4.490(Ac.) Runoff from this stream = 7.284(CFS) Time of concentration = 7.24 min. Rainfall intensity = 1.843(In/Hr) Area averaged loss rate (Fm) = 0.0400(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 3.25 1.920 6.48 0.310 1.970 2 7.28 4.490 7.24 0.040 1.843 Qmax(1) = 1.000 * 1.000 * 3.251) + 1.071 * 0.894 * 7.284) + = 10.228 Qmax(2) = 0.923 * 1.000 * 3.251) + 1.000 * 1.000 * 7.284) + = 10.286 Total of 2 main streams to confluence: Flow rates before confluence point: 4.251 8.284 Maximum flow rates at confluence using above data: 10.228 10.286 Area of streams before confluence: 1.920 4.490 Effective area values after confluence: 5.936 6.410 Results of confluence: Total flow rate = 10.286(CFS) Time of concentration = 7.239 min. Effective stream area after confluence = 6.410(Ac.) Study area average Pervious fraction(Ap) = 0.121 Study area average soil loss rate(Fm) = 0.121(In/Hr) Study area total = 6.41(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 977.660(Ft.) Downstream point/station elevation = 971.000(Ft.) Pipe length = 490.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 10.286(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 10.286(CFS) Normal flow depth in pipe = 12.63(In.) Flow top width inside pipe = 16.47(In.) Critical Depth = 14.81(In.) Pipe flow velocity = 7.76(Ft/s) Travel time through pipe = 1.05 min. Time of concentration (TC) = 8.29 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 6.410(Ac.) Runoff from this stream = 10.286(CFS) Time of concentration = 8.29 min. Rainfall intensity = 1.699(In/Hr) Area averaged loss rate (Fm) = 0.1209(In/Hr) Area averaged Pervious ratio (Ap) = 0.1209 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 1 = 16.60 Pervious ratio(Ap) = 0.0500 Max loss rate(Fm)= 0.050(In/Hr) Initial subarea data: Initial area flow distance = 590.460(Ft.) Top (of initial area) elevation = 990.390(Ft.) Bottom (of initial area) elevation = 982.710(Ft.) Difference in elevation = 7.680(Ft.) Slope = 0.01301 s(%)= 1.30 TC = k(0.287)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.775 min. Rainfall intensity = 1.642(In/Hr) for a 2.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.873 Subarea runoff = 9.354(CFS) Total initial stream area = 6.530(Ac.) Pervious area fraction = 0.050 Initial area Fm value = 0.050(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 6.530(Ac.) Runoff from this stream = 9.354(CFS) Time of concentration = 8.78 min. Rainfall intensity = 1.642(In/Hr) Area averaged loss rate (Fm) = 0.0500(In/Hr) Area averaged Pervious ratio (Ap) = 0.0500 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 10.29 6.410 8.29 0.121 1.699 2 9.35 6.530 8.78 0.050 1.642 Qmax(1) = 1.000 * 1.000 * 10.286) + 1.036 * 0.945 * 9.354) + = 19.439 Qmax(2) = 0.964 * 1.000 * 10.286) + 1.000 * 1.000 * 9.354) + = 19.268 Total of 2 main streams to confluence: Flow rates before confluence point: 11.286 10.354 Maximum flow rates at confluence using above data: 19.439 19.268 Area of streams before confluence: 6.410 6.530 Effective area values after confluence: 12.579 12.940 Results of confluence: Total flow rate = 19.439(CFS) Time of concentration = 8.291 min. Effective stream area after confluence = 12.579(Ac.) Study area average Pervious fraction(Ap) = 0.085 Study area average soil loss rate(Fm) = 0.085(In/Hr) Study area total = 12.94(Ac.) End of computations, Total Study Area = 12.94 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.085 Area averaged SCS curve number = 32.0 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.6 RATIONAL METHOD ANALYSIS POST-DEVELOPMENT CONDITIONS – 10 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 10 YEAR, RATIONAL METHOD POST-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0 Computed rainfall intensity: Storm year = 10.00 1 hour rainfall = 0.823 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.000 to Point/Station 3.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.4000 Max loss rate(Fm)= 0.391(In/Hr) Initial subarea data: Initial area flow distance = 161.250(Ft.) Top (of initial area) elevation = 999.000(Ft.) Bottom (of initial area) elevation = 990.820(Ft.) Difference in elevation = 8.180(Ft.) Slope = 0.05073 s(%)= 5.07 TC = k(0.373)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.174 min. Rainfall intensity = 3.581(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.802 Subarea runoff = 1.091(CFS) Total initial stream area = 0.380(Ac.) Pervious area fraction = 0.400 Initial area Fm value = 0.391(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 985.820(Ft.) Downstream point/station elevation = 984.570(Ft.) Pipe length = 209.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.091(CFS) Nearest computed pipe diameter = 9.00(In.) Calculated individual pipe flow = 1.091(CFS) Normal flow depth in pipe = 6.39(In.) Flow top width inside pipe = 8.17(In.) Critical Depth = 5.76(In.) Pipe flow velocity = 3.25(Ft/s) Travel time through pipe = 1.07 min. Time of concentration (TC) = 6.25 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.380(Ac.) Runoff from this stream = 1.091(CFS) Time of concentration = 6.25 min. Rainfall intensity = 3.199(In/Hr) Area averaged loss rate (Fm) = 0.3911(In/Hr) Area averaged Pervious ratio (Ap) = 0.4000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.381(In/Hr) Initial subarea data: Initial area flow distance = 163.100(Ft.) Top (of initial area) elevation = 997.080(Ft.) Bottom (of initial area) elevation = 990.760(Ft.) Difference in elevation = 6.320(Ft.) Slope = 0.03875 s(%)= 3.87 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.449 min. Rainfall intensity = 3.471(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.801 Subarea runoff = 1.029(CFS) Total initial stream area = 0.370(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.381(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.370(Ac.) Runoff from this stream = 1.029(CFS) Time of concentration = 5.45 min. Rainfall intensity = 3.471(In/Hr) Area averaged loss rate (Fm) = 0.3813(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.09 0.380 6.25 0.391 3.199 2 1.03 0.370 5.45 0.381 3.471 Qmax(1) = 1.000 * 1.000 * 1.091) + 0.912 * 1.000 * 1.029) + = 2.029 Qmax(2) = 1.097 * 0.873 * 1.091) + 1.000 * 1.000 * 1.029) + = 2.073 Total of 2 streams to confluence: Flow rates before confluence point: 1.091 1.029 Maximum flow rates at confluence using above data: 2.029 2.073 Area of streams before confluence: 0.380 0.370 Effective area values after confluence: 0.750 0.702 Results of confluence: Total flow rate = 2.073(CFS) Time of concentration = 5.449 min. Effective stream area after confluence = 0.702(Ac.) Study area average Pervious fraction(Ap) = 0.395 Study area average soil loss rate(Fm) = 0.386(In/Hr) Study area total (this main stream) = 0.75(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 984.570(Ft.) Downstream point/station elevation = 983.370(Ft.) Pipe length = 200.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 2.073(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 2.073(CFS) Normal flow depth in pipe = 7.76(In.) Flow top width inside pipe = 11.47(In.) Critical Depth = 7.38(In.) Pipe flow velocity = 3.86(Ft/s) Travel time through pipe = 0.86 min. Time of concentration (TC) = 6.31 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.702(Ac.) Runoff from this stream = 2.073(CFS) Time of concentration = 6.31 min. Rainfall intensity = 3.178(In/Hr) Area averaged loss rate (Fm) = 0.3863(In/Hr) Area averaged Pervious ratio (Ap) = 0.3951 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3800 Max loss rate(Fm)= 0.372(In/Hr) Initial subarea data: Initial area flow distance = 161.380(Ft.) Top (of initial area) elevation = 995.070(Ft.) Bottom (of initial area) elevation = 990.650(Ft.) Difference in elevation = 4.420(Ft.) Slope = 0.02739 s(%)= 2.74 TC = k(0.368)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.777 min. Rainfall intensity = 3.352(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.800 Subarea runoff = 1.126(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.380 Initial area Fm value = 0.372(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.420(Ac.) Runoff from this stream = 1.126(CFS) Time of concentration = 5.78 min. Rainfall intensity = 3.352(In/Hr) Area averaged loss rate (Fm) = 0.3716(In/Hr) Area averaged Pervious ratio (Ap) = 0.3800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 2.07 0.702 6.31 0.386 3.178 2 1.13 0.420 5.78 0.372 3.352 Qmax(1) = 1.000 * 1.000 * 2.073) + 0.942 * 1.000 * 1.126) + = 3.134 Qmax(2) = 1.062 * 0.915 * 2.073) + 1.000 * 1.000 * 1.126) + = 3.142 Total of 2 streams to confluence: Flow rates before confluence point: 2.073 1.126 Maximum flow rates at confluence using above data: 3.134 3.142 Area of streams before confluence: 0.702 0.420 Effective area values after confluence: 1.122 1.062 Results of confluence: Total flow rate = 3.142(CFS) Time of concentration = 5.777 min. Effective stream area after confluence = 1.062(Ac.) Study area average Pervious fraction(Ap) = 0.389 Study area average soil loss rate(Fm) = 0.381(In/Hr) Study area total (this main stream) = 1.12(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 983.370(Ft.) Downstream point/station elevation = 981.410(Ft.) Pipe length = 327.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 3.142(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 3.142(CFS) Normal flow depth in pipe = 8.63(In.) Flow top width inside pipe = 14.83(In.) Critical Depth = 8.57(In.) Pipe flow velocity = 4.31(Ft/s) Travel time through pipe = 1.27 min. Time of concentration (TC) = 7.04 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.062(Ac.) Runoff from this stream = 3.142(CFS) Time of concentration = 7.04 min. Rainfall intensity = 2.976(In/Hr) Area averaged loss rate (Fm) = 0.3808(In/Hr) Area averaged Pervious ratio (Ap) = 0.3894 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.381(In/Hr) Initial subarea data: Initial area flow distance = 346.050(Ft.) Top (of initial area) elevation = 991.360(Ft.) Bottom (of initial area) elevation = 985.560(Ft.) Difference in elevation = 5.800(Ft.) Slope = 0.01676 s(%)= 1.68 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.705 min. Rainfall intensity = 2.621(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.769 Subarea runoff = 1.572(CFS) Total initial stream area = 0.780(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.381(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.780(Ac.) Runoff from this stream = 1.572(CFS) Time of concentration = 8.71 min. Rainfall intensity = 2.621(In/Hr) Area averaged loss rate (Fm) = 0.3813(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 3.14 1.062 7.04 0.381 2.976 2 1.57 0.780 8.71 0.381 2.621 Qmax(1) = 1.000 * 1.000 * 3.142) + 1.159 * 0.809 * 1.572) + = 4.615 Qmax(2) = 0.863 * 1.000 * 3.142) + 1.000 * 1.000 * 1.572) + = 4.284 Total of 2 streams to confluence: Flow rates before confluence point: 3.142 1.572 Maximum flow rates at confluence using above data: 4.615 4.284 Area of streams before confluence: 1.062 0.780 Effective area values after confluence: 1.693 1.842 Results of confluence: Total flow rate = 4.615(CFS) Time of concentration = 7.043 min. Effective stream area after confluence = 1.693(Ac.) Study area average Pervious fraction(Ap) = 0.390 Study area average soil loss rate(Fm) = 0.381(In/Hr) Study area total (this main stream) = 1.84(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 981.410(Ft.) Downstream point/station elevation = 978.760(Ft.) Pipe length = 156.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 4.615(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 4.615(CFS) Normal flow depth in pipe = 9.77(In.) Flow top width inside pipe = 9.33(In.) Critical Depth = 10.73(In.) Pipe flow velocity = 6.74(Ft/s) Travel time through pipe = 0.39 min. Time of concentration (TC) = 7.43 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.693(Ac.) Runoff from this stream = 4.615(CFS) Time of concentration = 7.43 min. Rainfall intensity = 2.882(In/Hr) Area averaged loss rate (Fm) = 0.3810(In/Hr) Area averaged Pervious ratio (Ap) = 0.3897 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1800 Max loss rate(Fm)= 0.176(In/Hr) Initial subarea data: Initial area flow distance = 370.380(Ft.) Top (of initial area) elevation = 991.730(Ft.) Bottom (of initial area) elevation = 984.280(Ft.) Difference in elevation = 7.450(Ft.) Slope = 0.02011 s(%)= 2.01 TC = k(0.319)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.420 min. Rainfall intensity = 2.884(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.845 Subarea runoff = 4.339(CFS) Total initial stream area = 1.780(Ac.) Pervious area fraction = 0.180 Initial area Fm value = 0.176(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 1.780(Ac.) Runoff from this stream = 4.339(CFS) Time of concentration = 7.42 min. Rainfall intensity = 2.884(In/Hr) Area averaged loss rate (Fm) = 0.1760(In/Hr) Area averaged Pervious ratio (Ap) = 0.1800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 4.62 1.693 7.43 0.381 2.882 2 4.34 1.780 7.42 0.176 2.884 Qmax(1) = 1.000 * 1.000 * 4.615) + 0.999 * 1.000 * 4.339) + = 8.951 Qmax(2) = 1.001 * 0.999 * 4.615) + 1.000 * 1.000 * 4.339) + = 8.953 Total of 2 streams to confluence: Flow rates before confluence point: 4.615 4.339 Maximum flow rates at confluence using above data: 8.951 8.953 Area of streams before confluence: 1.693 1.780 Effective area values after confluence: 3.473 3.471 Results of confluence: Total flow rate = 8.953(CFS) Time of concentration = 7.420 min. Effective stream area after confluence = 3.471(Ac.) Study area average Pervious fraction(Ap) = 0.282 Study area average soil loss rate(Fm) = 0.276(In/Hr) Study area total (this main stream) = 3.47(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 978.760(Ft.) Downstream point/station elevation = 973.280(Ft.) Pipe length = 328.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 8.953(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 8.953(CFS) Normal flow depth in pipe = 10.66(In.) Flow top width inside pipe = 17.69(In.) Critical Depth = 13.89(In.) Pipe flow velocity = 8.20(Ft/s) Travel time through pipe = 0.67 min. Time of concentration (TC) = 8.09 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 3.471(Ac.) Runoff from this stream = 8.953(CFS) Time of concentration = 8.09 min. Rainfall intensity = 2.739(In/Hr) Area averaged loss rate (Fm) = 0.2759(In/Hr) Area averaged Pervious ratio (Ap) = 0.2822 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 456.790(Ft.) Top (of initial area) elevation = 987.140(Ft.) Bottom (of initial area) elevation = 980.860(Ft.) Difference in elevation = 6.280(Ft.) Slope = 0.01375 s(%)= 1.37 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.764 min. Rainfall intensity = 2.807(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.887 Subarea runoff = 13.177(CFS) Total initial stream area = 5.290(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 5.290(Ac.) Runoff from this stream = 13.177(CFS) Time of concentration = 7.76 min. Rainfall intensity = 2.807(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 8.95 3.471 8.09 0.276 2.739 2 13.18 5.290 7.76 0.039 2.807 Qmax(1) = 1.000 * 1.000 * 8.953) + 0.976 * 1.000 * 13.177) + = 21.808 Qmax(2) = 1.027 * 0.960 * 8.953) + 1.000 * 1.000 * 13.177) + = 22.009 Total of 2 streams to confluence: Flow rates before confluence point: 8.953 13.177 Maximum flow rates at confluence using above data: 21.808 22.009 Area of streams before confluence: 3.471 5.290 Effective area values after confluence: 8.761 8.623 Results of confluence: Total flow rate = 22.009(CFS) Time of concentration = 7.764 min. Effective stream area after confluence = 8.623(Ac.) Study area average Pervious fraction(Ap) = 0.136 Study area average soil loss rate(Fm) = 0.133(In/Hr) Study area total (this main stream) = 8.76(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 973.280(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 485.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 22.009(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 22.009(CFS) Normal flow depth in pipe = 15.42(In.) Flow top width inside pipe = 23.00(In.) Critical Depth = 20.10(In.) Pipe flow velocity = 10.31(Ft/s) Travel time through pipe = 0.78 min. Time of concentration (TC) = 8.55 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 8.623(Ac.) Runoff from this stream = 22.009(CFS) Time of concentration = 8.55 min. Rainfall intensity = 2.649(In/Hr) Area averaged loss rate (Fm) = 0.1329(In/Hr) Area averaged Pervious ratio (Ap) = 0.1360 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 653.410(Ft.) Top (of initial area) elevation = 985.500(Ft.) Bottom (of initial area) elevation = 975.420(Ft.) Difference in elevation = 10.080(Ft.) Slope = 0.01543 s(%)= 1.54 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.756 min. Rainfall intensity = 2.612(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.887 Subarea runoff = 17.943(CFS) Total initial stream area = 7.750(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 7.750(Ac.) Runoff from this stream = 17.943(CFS) Time of concentration = 8.76 min. Rainfall intensity = 2.612(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 22.01 8.623 8.55 0.133 2.649 2 17.94 7.750 8.76 0.039 2.612 Qmax(1) = 1.000 * 1.000 * 22.009) + 1.015 * 0.976 * 17.943) + = 39.786 Qmax(2) = 0.985 * 1.000 * 22.009) + 1.000 * 1.000 * 17.943) + = 39.622 Total of 2 streams to confluence: Flow rates before confluence point: 22.009 17.943 Maximum flow rates at confluence using above data: 39.786 39.622 Area of streams before confluence: 8.623 7.750 Effective area values after confluence: 16.190 16.373 Results of confluence: Total flow rate = 39.786(CFS) Time of concentration = 8.549 min. Effective stream area after confluence = 16.190(Ac.) Study area average Pervious fraction(Ap) = 0.091 Study area average soil loss rate(Fm) = 0.089(In/Hr) Study area total (this main stream) = 16.37(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 16.190(Ac.) Runoff from this stream = 39.786(CFS) Time of concentration = 8.55 min. Rainfall intensity = 2.649(In/Hr) Area averaged loss rate (Fm) = 0.0885(In/Hr) Area averaged Pervious ratio (Ap) = 0.0905 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.800 to Point/Station 3.900 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.5200 Max loss rate(Fm)= 0.508(In/Hr) Initial subarea data: Initial area flow distance = 160.000(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 980.790(Ft.) Difference in elevation = 2.810(Ft.) Slope = 0.01756 s(%)= 1.76 TC = k(0.403)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.883 min. Rainfall intensity = 3.017(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.748 Subarea runoff = 0.948(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.520 Initial area Fm value = 0.508(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 975.790(Ft.) Downstream point/station elevation = 972.540(Ft.) Pipe length = 372.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 0.948(CFS) Nearest computed pipe diameter = 9.00(In.) Calculated individual pipe flow = 0.948(CFS) Normal flow depth in pipe = 5.09(In.) Flow top width inside pipe = 8.92(In.) Critical Depth = 5.35(In.) Pipe flow velocity = 3.68(Ft/s) Travel time through pipe = 1.69 min. Time of concentration (TC) = 8.57 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 0.420(Ac.) Runoff from this stream = 0.948(CFS) Time of concentration = 8.57 min. Rainfall intensity = 2.646(In/Hr) Area averaged loss rate (Fm) = 0.5085(In/Hr) Area averaged Pervious ratio (Ap) = 0.5200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1400 Max loss rate(Fm)= 0.137(In/Hr) Initial subarea data: Initial area flow distance = 534.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 981.360(Ft.) Difference in elevation = 6.250(Ft.) Slope = 0.01169 s(%)= 1.17 TC = k(0.309)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 9.280 min. Rainfall intensity = 2.522(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.851 Subarea runoff = 6.225(CFS) Total initial stream area = 2.900(Ac.) Pervious area fraction = 0.140 Initial area Fm value = 0.137(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.900(Ac.) Runoff from this stream = 6.225(CFS) Time of concentration = 9.28 min. Rainfall intensity = 2.522(In/Hr) Area averaged loss rate (Fm) = 0.1369(In/Hr) Area averaged Pervious ratio (Ap) = 0.1400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 0.95 0.420 8.57 0.508 2.646 2 6.23 2.900 9.28 0.137 2.522 Qmax(1) = 1.000 * 1.000 * 0.948) + 1.052 * 0.923 * 6.225) + = 6.994 Qmax(2) = 0.942 * 1.000 * 0.948) + 1.000 * 1.000 * 6.225) + = 7.119 Total of 2 streams to confluence: Flow rates before confluence point: 0.948 6.225 Maximum flow rates at confluence using above data: 6.994 7.119 Area of streams before confluence: 0.420 2.900 Effective area values after confluence: 3.098 3.320 Results of confluence: Total flow rate = 7.119(CFS) Time of concentration = 9.280 min. Effective stream area after confluence = 3.320(Ac.) Study area average Pervious fraction(Ap) = 0.188 Study area average soil loss rate(Fm) = 0.184(In/Hr) Study area total (this main stream) = 3.32(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 972.540(Ft.) Downstream point/station elevation = 968.390(Ft.) Pipe length = 475.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 7.119(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 7.119(CFS) Normal flow depth in pipe = 11.37(In.) Flow top width inside pipe = 17.37(In.) Critical Depth = 12.39(In.) Pipe flow velocity = 6.06(Ft/s) Travel time through pipe = 1.31 min. Time of concentration (TC) = 10.59 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 3.320(Ac.) Runoff from this stream = 7.119(CFS) Time of concentration = 10.59 min. Rainfall intensity = 2.330(In/Hr) Area averaged loss rate (Fm) = 0.1839(In/Hr) Area averaged Pervious ratio (Ap) = 0.1881 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0900 Max loss rate(Fm)= 0.088(In/Hr) Initial subarea data: Initial area flow distance = 689.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 980.590(Ft.) Difference in elevation = 7.020(Ft.) Slope = 0.01018 s(%)= 1.02 TC = k(0.297)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.143 min. Rainfall intensity = 2.391(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.867 Subarea runoff = 4.643(CFS) Total initial stream area = 2.240(Ac.) Pervious area fraction = 0.090 Initial area Fm value = 0.088(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.240(Ac.) Runoff from this stream = 4.643(CFS) Time of concentration = 10.14 min. Rainfall intensity = 2.391(In/Hr) Area averaged loss rate (Fm) = 0.0880(In/Hr) Area averaged Pervious ratio (Ap) = 0.0900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 7.12 3.320 10.59 0.184 2.330 2 4.64 2.240 10.14 0.088 2.391 Qmax(1) = 1.000 * 1.000 * 7.119) + 0.974 * 1.000 * 4.643) + = 11.639 Qmax(2) = 1.028 * 0.958 * 7.119) + 1.000 * 1.000 * 4.643) + = 11.656 Total of 2 streams to confluence: Flow rates before confluence point: 7.119 4.643 Maximum flow rates at confluence using above data: 11.639 11.656 Area of streams before confluence: 3.320 2.240 Effective area values after confluence: 5.560 5.420 Results of confluence: Total flow rate = 11.656(CFS) Time of concentration = 10.143 min. Effective stream area after confluence = 5.420(Ac.) Study area average Pervious fraction(Ap) = 0.149 Study area average soil loss rate(Fm) = 0.145(In/Hr) Study area total (this main stream) = 5.56(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 968.390(Ft.) Downstream point/station elevation = 966.540(Ft.) Pipe length = 211.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 11.656(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 11.656(CFS) Normal flow depth in pipe = 14.02(In.) Flow top width inside pipe = 19.79(In.) Critical Depth = 15.27(In.) Pipe flow velocity = 6.83(Ft/s) Travel time through pipe = 0.51 min. Time of concentration (TC) = 10.66 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 5.420(Ac.) Runoff from this stream = 11.656(CFS) Time of concentration = 10.66 min. Rainfall intensity = 2.321(In/Hr) Area averaged loss rate (Fm) = 0.1453(In/Hr) Area averaged Pervious ratio (Ap) = 0.1486 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.2700 Max loss rate(Fm)= 0.264(In/Hr) Initial subarea data: Initial area flow distance = 436.910(Ft.) Top (of initial area) elevation = 986.380(Ft.) Bottom (of initial area) elevation = 973.310(Ft.) Difference in elevation = 13.070(Ft.) Slope = 0.02991 s(%)= 2.99 TC = k(0.341)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.831 min. Rainfall intensity = 2.792(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.815 Subarea runoff = 2.230(CFS) Total initial stream area = 0.980(Ac.) Pervious area fraction = 0.270 Initial area Fm value = 0.264(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.980(Ac.) Runoff from this stream = 2.230(CFS) Time of concentration = 7.83 min. Rainfall intensity = 2.792(In/Hr) Area averaged loss rate (Fm) = 0.2640(In/Hr) Area averaged Pervious ratio (Ap) = 0.2700 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 11.66 5.420 10.66 0.145 2.321 2 2.23 0.980 7.83 0.264 2.792 Qmax(1) = 1.000 * 1.000 * 11.656) + 0.814 * 1.000 * 2.230) + = 13.470 Qmax(2) = 1.217 * 0.735 * 11.656) + 1.000 * 1.000 * 2.230) + = 12.651 Total of 2 streams to confluence: Flow rates before confluence point: 11.656 2.230 Maximum flow rates at confluence using above data: 13.470 12.651 Area of streams before confluence: 5.420 0.980 Effective area values after confluence: 6.400 4.963 Results of confluence: Total flow rate = 13.470(CFS) Time of concentration = 10.657 min. Effective stream area after confluence = 6.400(Ac.) Study area average Pervious fraction(Ap) = 0.167 Study area average soil loss rate(Fm) = 0.163(In/Hr) Study area total (this main stream) = 6.40(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.400(Ac.) Runoff from this stream = 13.470(CFS) Time of concentration = 10.66 min. Rainfall intensity = 2.321(In/Hr) Area averaged loss rate (Fm) = 0.1634(In/Hr) Area averaged Pervious ratio (Ap) = 0.1672 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0300 Max loss rate(Fm)= 0.029(In/Hr) Initial subarea data: Initial area flow distance = 276.950(Ft.) Top (of initial area) elevation = 986.510(Ft.) Bottom (of initial area) elevation = 973.530(Ft.) Difference in elevation = 12.980(Ft.) Slope = 0.04687 s(%)= 4.69 TC = k(0.282)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 4.930 min. Rainfall intensity = 3.686(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.893 Subarea runoff = 1.053(CFS) Total initial stream area = 0.320(Ac.) Pervious area fraction = 0.030 Initial area Fm value = 0.029(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.320(Ac.) Runoff from this stream = 1.053(CFS) Time of concentration = 4.93 min. Rainfall intensity = 3.686(In/Hr) Area averaged loss rate (Fm) = 0.0293(In/Hr) Area averaged Pervious ratio (Ap) = 0.0300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 13.47 6.400 10.66 0.163 2.321 2 1.05 0.320 4.93 0.029 3.686 Qmax(1) = 1.000 * 1.000 * 13.470) + 0.627 * 1.000 * 1.053) + = 14.130 Qmax(2) = 1.633 * 0.463 * 13.470) + 1.000 * 1.000 * 1.053) + = 11.227 Total of 2 streams to confluence: Flow rates before confluence point: 13.470 1.053 Maximum flow rates at confluence using above data: 14.130 11.227 Area of streams before confluence: 6.400 0.320 Effective area values after confluence: 6.720 3.281 Results of confluence: Total flow rate = 14.130(CFS) Time of concentration = 10.657 min. Effective stream area after confluence = 6.720(Ac.) Study area average Pervious fraction(Ap) = 0.161 Study area average soil loss rate(Fm) = 0.157(In/Hr) Study area total (this main stream) = 6.72(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.720(Ac.) Runoff from this stream = 14.130(CFS) Time of concentration = 10.66 min. Rainfall intensity = 2.321(In/Hr) Area averaged loss rate (Fm) = 0.1571(In/Hr) Area averaged Pervious ratio (Ap) = 0.1606 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.2300 Max loss rate(Fm)= 0.225(In/Hr) Initial subarea data: Initial area flow distance = 333.920(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 974.620(Ft.) Difference in elevation = 8.980(Ft.) Slope = 0.02689 s(%)= 2.69 TC = k(0.331)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.977 min. Rainfall intensity = 2.993(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.832 Subarea runoff = 2.068(CFS) Total initial stream area = 0.830(Ac.) Pervious area fraction = 0.230 Initial area Fm value = 0.225(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.830(Ac.) Runoff from this stream = 2.068(CFS) Time of concentration = 6.98 min. Rainfall intensity = 2.993(In/Hr) Area averaged loss rate (Fm) = 0.2249(In/Hr) Area averaged Pervious ratio (Ap) = 0.2300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 14.13 6.720 10.66 0.157 2.321 2 2.07 0.830 6.98 0.225 2.993 Qmax(1) = 1.000 * 1.000 * 14.130) + 0.757 * 1.000 * 2.068) + = 15.696 Qmax(2) = 1.310 * 0.655 * 14.130) + 1.000 * 1.000 * 2.068) + = 14.190 Total of 2 streams to confluence: Flow rates before confluence point: 14.130 2.068 Maximum flow rates at confluence using above data: 15.696 14.190 Area of streams before confluence: 6.720 0.830 Effective area values after confluence: 7.550 5.229 Results of confluence: Total flow rate = 15.696(CFS) Time of concentration = 10.657 min. Effective stream area after confluence = 7.550(Ac.) Study area average Pervious fraction(Ap) = 0.168 Study area average soil loss rate(Fm) = 0.165(In/Hr) Study area total (this main stream) = 7.55(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.540(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 176.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 15.696(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 15.696(CFS) Normal flow depth in pipe = 15.40(In.) Flow top width inside pipe = 23.02(In.) Critical Depth = 17.14(In.) Pipe flow velocity = 7.38(Ft/s) Travel time through pipe = 0.40 min. Time of concentration (TC) = 11.06 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 7.550(Ac.) Runoff from this stream = 15.696(CFS) Time of concentration = 11.06 min. Rainfall intensity = 2.271(In/Hr) Area averaged loss rate (Fm) = 0.1645(In/Hr) Area averaged Pervious ratio (Ap) = 0.1683 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 39.79 16.190 8.55 0.089 2.649 2 15.70 7.550 11.06 0.165 2.271 Qmax(1) = 1.000 * 1.000 * 39.786) + 1.180 * 0.773 * 15.696) + = 54.106 Qmax(2) = 0.852 * 1.000 * 39.786) + 1.000 * 1.000 * 15.696) + = 49.597 Total of 2 main streams to confluence: Flow rates before confluence point: 40.786 16.696 Maximum flow rates at confluence using above data: 54.106 49.597 Area of streams before confluence: 16.190 7.550 Effective area values after confluence: 22.028 23.740 Results of confluence: Total flow rate = 54.106(CFS) Time of concentration = 8.549 min. Effective stream area after confluence = 22.028(Ac.) Study area average Pervious fraction(Ap) = 0.115 Study area average soil loss rate(Fm) = 0.113(In/Hr) Study area total = 23.74(Ac.) End of computations, Total Study Area = 24.46 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.118 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 10 YEAR, RATIONAL METHOD POST-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 10.0 Computed rainfall intensity: Storm year = 10.00 1 hour rainfall = 0.823 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.000 to Point/Station 5.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3100 Max loss rate(Fm)= 0.303(In/Hr) Initial subarea data: Initial area flow distance = 228.380(Ft.) Top (of initial area) elevation = 1001.000(Ft.) Bottom (of initial area) elevation = 987.460(Ft.) Difference in elevation = 13.540(Ft.) Slope = 0.05929 s(%)= 5.93 TC = k(0.351)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.421 min. Rainfall intensity = 3.482(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.822 Subarea runoff = 5.493(CFS) Total initial stream area = 1.920(Ac.) Pervious area fraction = 0.310 Initial area Fm value = 0.303(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 982.460(Ft.) Downstream point/station elevation = 977.660(Ft.) Pipe length = 365.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 5.493(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 5.493(CFS) Normal flow depth in pipe = 9.62(In.) Flow top width inside pipe = 14.39(In.) Critical Depth = 11.40(In.) Pipe flow velocity = 6.61(Ft/s) Travel time through pipe = 0.92 min. Time of concentration (TC) = 6.34 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 1.920(Ac.) Runoff from this stream = 5.493(CFS) Time of concentration = 6.34 min. Rainfall intensity = 3.169(In/Hr) Area averaged loss rate (Fm) = 0.3031(In/Hr) Area averaged Pervious ratio (Ap) = 0.3100 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 487.230(Ft.) Top (of initial area) elevation = 996.020(Ft.) Bottom (of initial area) elevation = 985.200(Ft.) Difference in elevation = 10.820(Ft.) Slope = 0.02221 s(%)= 2.22 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.239 min. Rainfall intensity = 2.927(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.888 Subarea runoff = 11.672(CFS) Total initial stream area = 4.490(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 4.490(Ac.) Runoff from this stream = 11.672(CFS) Time of concentration = 7.24 min. Rainfall intensity = 2.927(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 5.49 1.920 6.34 0.303 3.169 2 11.67 4.490 7.24 0.039 2.927 Qmax(1) = 1.000 * 1.000 * 5.493) + 1.084 * 0.876 * 11.672) + = 16.574 Qmax(2) = 0.916 * 1.000 * 5.493) + 1.000 * 1.000 * 11.672) + = 16.701 Total of 2 main streams to confluence: Flow rates before confluence point: 6.493 12.672 Maximum flow rates at confluence using above data: 16.574 16.701 Area of streams before confluence: 1.920 4.490 Effective area values after confluence: 5.853 6.410 Results of confluence: Total flow rate = 16.701(CFS) Time of concentration = 7.239 min. Effective stream area after confluence = 6.410(Ac.) Study area average Pervious fraction(Ap) = 0.121 Study area average soil loss rate(Fm) = 0.118(In/Hr) Study area total = 6.41(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 977.660(Ft.) Downstream point/station elevation = 971.000(Ft.) Pipe length = 490.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 16.701(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 16.701(CFS) Normal flow depth in pipe = 15.63(In.) Flow top width inside pipe = 18.32(In.) Critical Depth = 18.01(In.) Pipe flow velocity = 8.70(Ft/s) Travel time through pipe = 0.94 min. Time of concentration (TC) = 8.18 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 6.410(Ac.) Runoff from this stream = 16.701(CFS) Time of concentration = 8.18 min. Rainfall intensity = 2.721(In/Hr) Area averaged loss rate (Fm) = 0.1182(In/Hr) Area averaged Pervious ratio (Ap) = 0.1209 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0500 Max loss rate(Fm)= 0.049(In/Hr) Initial subarea data: Initial area flow distance = 590.460(Ft.) Top (of initial area) elevation = 990.390(Ft.) Bottom (of initial area) elevation = 982.710(Ft.) Difference in elevation = 7.680(Ft.) Slope = 0.01301 s(%)= 1.30 TC = k(0.287)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.775 min. Rainfall intensity = 2.608(In/Hr) for a 10.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.883 Subarea runoff = 15.041(CFS) Total initial stream area = 6.530(Ac.) Pervious area fraction = 0.050 Initial area Fm value = 0.049(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 6.530(Ac.) Runoff from this stream = 15.041(CFS) Time of concentration = 8.78 min. Rainfall intensity = 2.608(In/Hr) Area averaged loss rate (Fm) = 0.0489(In/Hr) Area averaged Pervious ratio (Ap) = 0.0500 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 16.70 6.410 8.18 0.118 2.721 2 15.04 6.530 8.78 0.049 2.608 Qmax(1) = 1.000 * 1.000 * 16.701) + 1.044 * 0.932 * 15.041) + = 31.335 Qmax(2) = 0.957 * 1.000 * 16.701) + 1.000 * 1.000 * 15.041) + = 31.019 Total of 2 main streams to confluence: Flow rates before confluence point: 17.701 16.041 Maximum flow rates at confluence using above data: 31.335 31.019 Area of streams before confluence: 6.410 6.530 Effective area values after confluence: 12.495 12.940 Results of confluence: Total flow rate = 31.335(CFS) Time of concentration = 8.178 min. Effective stream area after confluence = 12.495(Ac.) Study area average Pervious fraction(Ap) = 0.085 Study area average soil loss rate(Fm) = 0.083(In/Hr) Study area total = 12.94(Ac.) End of computations, Total Study Area = 12.94 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.085 Area averaged SCS curve number = 32.0 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.7 RATIONAL METHOD ANALYSIS POST-DEVELOPMENT CONDITIONS – 25 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 25 YEAR, RATIONAL METHOD POST-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 25.0 Computed rainfall intensity: Storm year = 25.00 1 hour rainfall = 1.020 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.000 to Point/Station 3.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.4000 Max loss rate(Fm)= 0.391(In/Hr) Initial subarea data: Initial area flow distance = 161.250(Ft.) Top (of initial area) elevation = 999.000(Ft.) Bottom (of initial area) elevation = 990.820(Ft.) Difference in elevation = 8.180(Ft.) Slope = 0.05073 s(%)= 5.07 TC = k(0.373)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.174 min. Rainfall intensity = 4.438(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.821 Subarea runoff = 1.384(CFS) Total initial stream area = 0.380(Ac.) Pervious area fraction = 0.400 Initial area Fm value = 0.391(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 985.820(Ft.) Downstream point/station elevation = 984.570(Ft.) Pipe length = 209.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.384(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 1.384(CFS) Normal flow depth in pipe = 6.02(In.) Flow top width inside pipe = 12.00(In.) Critical Depth = 5.97(In.) Pipe flow velocity = 3.51(Ft/s) Travel time through pipe = 0.99 min. Time of concentration (TC) = 6.17 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.380(Ac.) Runoff from this stream = 1.384(CFS) Time of concentration = 6.17 min. Rainfall intensity = 3.995(In/Hr) Area averaged loss rate (Fm) = 0.3911(In/Hr) Area averaged Pervious ratio (Ap) = 0.4000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.381(In/Hr) Initial subarea data: Initial area flow distance = 163.100(Ft.) Top (of initial area) elevation = 997.080(Ft.) Bottom (of initial area) elevation = 990.760(Ft.) Difference in elevation = 6.320(Ft.) Slope = 0.03875 s(%)= 3.87 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.449 min. Rainfall intensity = 4.302(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.820 Subarea runoff = 1.306(CFS) Total initial stream area = 0.370(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.381(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.370(Ac.) Runoff from this stream = 1.306(CFS) Time of concentration = 5.45 min. Rainfall intensity = 4.302(In/Hr) Area averaged loss rate (Fm) = 0.3813(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.38 0.380 6.17 0.391 3.995 2 1.31 0.370 5.45 0.381 4.302 Qmax(1) = 1.000 * 1.000 * 1.384) + 0.922 * 1.000 * 1.306) + = 2.587 Qmax(2) = 1.085 * 0.884 * 1.384) + 1.000 * 1.000 * 1.306) + = 2.633 Total of 2 streams to confluence: Flow rates before confluence point: 1.384 1.306 Maximum flow rates at confluence using above data: 2.587 2.633 Area of streams before confluence: 0.380 0.370 Effective area values after confluence: 0.750 0.706 Results of confluence: Total flow rate = 2.633(CFS) Time of concentration = 5.449 min. Effective stream area after confluence = 0.706(Ac.) Study area average Pervious fraction(Ap) = 0.395 Study area average soil loss rate(Fm) = 0.386(In/Hr) Study area total (this main stream) = 0.75(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 984.570(Ft.) Downstream point/station elevation = 983.370(Ft.) Pipe length = 200.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 2.633(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 2.633(CFS) Normal flow depth in pipe = 9.38(In.) Flow top width inside pipe = 9.92(In.) Critical Depth = 8.34(In.) Pipe flow velocity = 4.00(Ft/s) Travel time through pipe = 0.83 min. Time of concentration (TC) = 6.28 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.706(Ac.) Runoff from this stream = 2.633(CFS) Time of concentration = 6.28 min. Rainfall intensity = 3.950(In/Hr) Area averaged loss rate (Fm) = 0.3863(In/Hr) Area averaged Pervious ratio (Ap) = 0.3951 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3800 Max loss rate(Fm)= 0.372(In/Hr) Initial subarea data: Initial area flow distance = 161.380(Ft.) Top (of initial area) elevation = 995.070(Ft.) Bottom (of initial area) elevation = 990.650(Ft.) Difference in elevation = 4.420(Ft.) Slope = 0.02739 s(%)= 2.74 TC = k(0.368)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.777 min. Rainfall intensity = 4.154(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.819 Subarea runoff = 1.430(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.380 Initial area Fm value = 0.372(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.420(Ac.) Runoff from this stream = 1.430(CFS) Time of concentration = 5.78 min. Rainfall intensity = 4.154(In/Hr) Area averaged loss rate (Fm) = 0.3716(In/Hr) Area averaged Pervious ratio (Ap) = 0.3800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 2.63 0.706 6.28 0.386 3.950 2 1.43 0.420 5.78 0.372 4.154 Qmax(1) = 1.000 * 1.000 * 2.633) + 0.946 * 1.000 * 1.430) + = 3.986 Qmax(2) = 1.057 * 0.920 * 2.633) + 1.000 * 1.000 * 1.430) + = 3.990 Total of 2 streams to confluence: Flow rates before confluence point: 2.633 1.430 Maximum flow rates at confluence using above data: 3.986 3.990 Area of streams before confluence: 0.706 0.420 Effective area values after confluence: 1.126 1.069 Results of confluence: Total flow rate = 3.990(CFS) Time of concentration = 5.777 min. Effective stream area after confluence = 1.069(Ac.) Study area average Pervious fraction(Ap) = 0.389 Study area average soil loss rate(Fm) = 0.381(In/Hr) Study area total (this main stream) = 1.13(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 983.370(Ft.) Downstream point/station elevation = 981.410(Ft.) Pipe length = 327.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 3.990(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 3.990(CFS) Normal flow depth in pipe = 10.13(In.) Flow top width inside pipe = 14.05(In.) Critical Depth = 9.69(In.) Pipe flow velocity = 4.53(Ft/s) Travel time through pipe = 1.20 min. Time of concentration (TC) = 6.98 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.069(Ac.) Runoff from this stream = 3.990(CFS) Time of concentration = 6.98 min. Rainfall intensity = 3.708(In/Hr) Area averaged loss rate (Fm) = 0.3808(In/Hr) Area averaged Pervious ratio (Ap) = 0.3894 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.381(In/Hr) Initial subarea data: Initial area flow distance = 346.050(Ft.) Top (of initial area) elevation = 991.360(Ft.) Bottom (of initial area) elevation = 985.560(Ft.) Difference in elevation = 5.800(Ft.) Slope = 0.01676 s(%)= 1.68 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.705 min. Rainfall intensity = 3.248(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.794 Subarea runoff = 2.012(CFS) Total initial stream area = 0.780(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.381(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.780(Ac.) Runoff from this stream = 2.012(CFS) Time of concentration = 8.71 min. Rainfall intensity = 3.248(In/Hr) Area averaged loss rate (Fm) = 0.3813(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 3.99 1.069 6.98 0.381 3.708 2 2.01 0.780 8.71 0.381 3.248 Qmax(1) = 1.000 * 1.000 * 3.990) + 1.160 * 0.802 * 2.012) + = 5.862 Qmax(2) = 0.862 * 1.000 * 3.990) + 1.000 * 1.000 * 2.012) + = 5.451 Total of 2 streams to confluence: Flow rates before confluence point: 3.990 2.012 Maximum flow rates at confluence using above data: 5.862 5.451 Area of streams before confluence: 1.069 0.780 Effective area values after confluence: 1.695 1.849 Results of confluence: Total flow rate = 5.862(CFS) Time of concentration = 6.982 min. Effective stream area after confluence = 1.695(Ac.) Study area average Pervious fraction(Ap) = 0.390 Study area average soil loss rate(Fm) = 0.381(In/Hr) Study area total (this main stream) = 1.85(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 981.410(Ft.) Downstream point/station elevation = 978.760(Ft.) Pipe length = 156.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 5.862(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 5.862(CFS) Normal flow depth in pipe = 9.21(In.) Flow top width inside pipe = 14.60(In.) Critical Depth = 11.75(In.) Pipe flow velocity = 7.41(Ft/s) Travel time through pipe = 0.35 min. Time of concentration (TC) = 7.33 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.695(Ac.) Runoff from this stream = 5.862(CFS) Time of concentration = 7.33 min. Rainfall intensity = 3.600(In/Hr) Area averaged loss rate (Fm) = 0.3810(In/Hr) Area averaged Pervious ratio (Ap) = 0.3897 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1800 Max loss rate(Fm)= 0.176(In/Hr) Initial subarea data: Initial area flow distance = 370.380(Ft.) Top (of initial area) elevation = 991.730(Ft.) Bottom (of initial area) elevation = 984.280(Ft.) Difference in elevation = 7.450(Ft.) Slope = 0.02011 s(%)= 2.01 TC = k(0.319)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.420 min. Rainfall intensity = 3.575(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.856 Subarea runoff = 5.445(CFS) Total initial stream area = 1.780(Ac.) Pervious area fraction = 0.180 Initial area Fm value = 0.176(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 1.780(Ac.) Runoff from this stream = 5.445(CFS) Time of concentration = 7.42 min. Rainfall intensity = 3.575(In/Hr) Area averaged loss rate (Fm) = 0.1760(In/Hr) Area averaged Pervious ratio (Ap) = 0.1800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 5.86 1.695 7.33 0.381 3.600 2 5.44 1.780 7.42 0.176 3.575 Qmax(1) = 1.000 * 1.000 * 5.862) + 1.008 * 0.988 * 5.445) + = 11.284 Qmax(2) = 0.992 * 1.000 * 5.862) + 1.000 * 1.000 * 5.445) + = 11.261 Total of 2 streams to confluence: Flow rates before confluence point: 5.862 5.445 Maximum flow rates at confluence using above data: 11.284 11.261 Area of streams before confluence: 1.695 1.780 Effective area values after confluence: 3.454 3.475 Results of confluence: Total flow rate = 11.284(CFS) Time of concentration = 7.332 min. Effective stream area after confluence = 3.454(Ac.) Study area average Pervious fraction(Ap) = 0.282 Study area average soil loss rate(Fm) = 0.276(In/Hr) Study area total (this main stream) = 3.47(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 978.760(Ft.) Downstream point/station elevation = 973.280(Ft.) Pipe length = 328.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 11.284(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 11.284(CFS) Normal flow depth in pipe = 12.53(In.) Flow top width inside pipe = 16.56(In.) Critical Depth = 15.40(In.) Pipe flow velocity = 8.59(Ft/s) Travel time through pipe = 0.64 min. Time of concentration (TC) = 7.97 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 3.454(Ac.) Runoff from this stream = 11.284(CFS) Time of concentration = 7.97 min. Rainfall intensity = 3.425(In/Hr) Area averaged loss rate (Fm) = 0.2760(In/Hr) Area averaged Pervious ratio (Ap) = 0.2823 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 456.790(Ft.) Top (of initial area) elevation = 987.140(Ft.) Bottom (of initial area) elevation = 980.860(Ft.) Difference in elevation = 6.280(Ft.) Slope = 0.01375 s(%)= 1.37 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.764 min. Rainfall intensity = 3.479(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.890 Subarea runoff = 16.376(CFS) Total initial stream area = 5.290(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 5.290(Ac.) Runoff from this stream = 16.376(CFS) Time of concentration = 7.76 min. Rainfall intensity = 3.479(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 11.28 3.454 7.97 0.276 3.425 2 16.38 5.290 7.76 0.039 3.479 Qmax(1) = 1.000 * 1.000 * 11.284) + 0.984 * 1.000 * 16.376) + = 27.404 Qmax(2) = 1.017 * 0.974 * 11.284) + 1.000 * 1.000 * 16.376) + = 27.558 Total of 2 streams to confluence: Flow rates before confluence point: 11.284 16.376 Maximum flow rates at confluence using above data: 27.404 27.558 Area of streams before confluence: 3.454 5.290 Effective area values after confluence: 8.744 8.655 Results of confluence: Total flow rate = 27.558(CFS) Time of concentration = 7.764 min. Effective stream area after confluence = 8.655(Ac.) Study area average Pervious fraction(Ap) = 0.136 Study area average soil loss rate(Fm) = 0.133(In/Hr) Study area total (this main stream) = 8.74(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 973.280(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 485.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 27.558(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 27.558(CFS) Normal flow depth in pipe = 18.35(In.) Flow top width inside pipe = 20.36(In.) Critical Depth = 21.84(In.) Pipe flow velocity = 10.69(Ft/s) Travel time through pipe = 0.76 min. Time of concentration (TC) = 8.52 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 8.655(Ac.) Runoff from this stream = 27.558(CFS) Time of concentration = 8.52 min. Rainfall intensity = 3.290(In/Hr) Area averaged loss rate (Fm) = 0.1327(In/Hr) Area averaged Pervious ratio (Ap) = 0.1357 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 653.410(Ft.) Top (of initial area) elevation = 985.500(Ft.) Bottom (of initial area) elevation = 975.420(Ft.) Difference in elevation = 10.080(Ft.) Slope = 0.01543 s(%)= 1.54 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.756 min. Rainfall intensity = 3.237(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.889 Subarea runoff = 22.304(CFS) Total initial stream area = 7.750(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 7.750(Ac.) Runoff from this stream = 22.304(CFS) Time of concentration = 8.76 min. Rainfall intensity = 3.237(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 27.56 8.655 8.52 0.133 3.290 2 22.30 7.750 8.76 0.039 3.237 Qmax(1) = 1.000 * 1.000 * 27.558) + 1.017 * 0.973 * 22.304) + = 49.625 Qmax(2) = 0.983 * 1.000 * 27.558) + 1.000 * 1.000 * 22.304) + = 49.397 Total of 2 streams to confluence: Flow rates before confluence point: 27.558 22.304 Maximum flow rates at confluence using above data: 49.625 49.397 Area of streams before confluence: 8.655 7.750 Effective area values after confluence: 16.197 16.405 Results of confluence: Total flow rate = 49.625(CFS) Time of concentration = 8.521 min. Effective stream area after confluence = 16.197(Ac.) Study area average Pervious fraction(Ap) = 0.090 Study area average soil loss rate(Fm) = 0.088(In/Hr) Study area total (this main stream) = 16.41(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 16.197(Ac.) Runoff from this stream = 49.625(CFS) Time of concentration = 8.52 min. Rainfall intensity = 3.290(In/Hr) Area averaged loss rate (Fm) = 0.0885(In/Hr) Area averaged Pervious ratio (Ap) = 0.0905 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.800 to Point/Station 3.900 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.5200 Max loss rate(Fm)= 0.508(In/Hr) Initial subarea data: Initial area flow distance = 160.000(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 980.790(Ft.) Difference in elevation = 2.810(Ft.) Slope = 0.01756 s(%)= 1.76 TC = k(0.403)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.883 min. Rainfall intensity = 3.740(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.778 Subarea runoff = 1.221(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.520 Initial area Fm value = 0.508(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 975.790(Ft.) Downstream point/station elevation = 972.540(Ft.) Pipe length = 372.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.221(CFS) Nearest computed pipe diameter = 9.00(In.) Calculated individual pipe flow = 1.221(CFS) Normal flow depth in pipe = 6.04(In.) Flow top width inside pipe = 8.46(In.) Critical Depth = 6.10(In.) Pipe flow velocity = 3.88(Ft/s) Travel time through pipe = 1.60 min. Time of concentration (TC) = 8.48 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 0.420(Ac.) Runoff from this stream = 1.221(CFS) Time of concentration = 8.48 min. Rainfall intensity = 3.299(In/Hr) Area averaged loss rate (Fm) = 0.5085(In/Hr) Area averaged Pervious ratio (Ap) = 0.5200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.1400 Max loss rate(Fm)= 0.137(In/Hr) Initial subarea data: Initial area flow distance = 534.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 981.360(Ft.) Difference in elevation = 6.250(Ft.) Slope = 0.01169 s(%)= 1.17 TC = k(0.309)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 9.280 min. Rainfall intensity = 3.126(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 7.801(CFS) Total initial stream area = 2.900(Ac.) Pervious area fraction = 0.140 Initial area Fm value = 0.137(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.900(Ac.) Runoff from this stream = 7.801(CFS) Time of concentration = 9.28 min. Rainfall intensity = 3.126(In/Hr) Area averaged loss rate (Fm) = 0.1369(In/Hr) Area averaged Pervious ratio (Ap) = 0.1400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.22 0.420 8.48 0.508 3.299 2 7.80 2.900 9.28 0.137 3.126 Qmax(1) = 1.000 * 1.000 * 1.221) + 1.058 * 0.914 * 7.801) + = 8.764 Qmax(2) = 0.938 * 1.000 * 1.221) + 1.000 * 1.000 * 7.801) + = 8.946 Total of 2 streams to confluence: Flow rates before confluence point: 1.221 7.801 Maximum flow rates at confluence using above data: 8.764 8.946 Area of streams before confluence: 0.420 2.900 Effective area values after confluence: 3.070 3.320 Results of confluence: Total flow rate = 8.946(CFS) Time of concentration = 9.280 min. Effective stream area after confluence = 3.320(Ac.) Study area average Pervious fraction(Ap) = 0.188 Study area average soil loss rate(Fm) = 0.184(In/Hr) Study area total (this main stream) = 3.32(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 972.540(Ft.) Downstream point/station elevation = 968.390(Ft.) Pipe length = 475.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 8.946(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 8.946(CFS) Normal flow depth in pipe = 13.50(In.) Flow top width inside pipe = 15.59(In.) Critical Depth = 13.88(In.) Pipe flow velocity = 6.30(Ft/s) Travel time through pipe = 1.26 min. Time of concentration (TC) = 10.54 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 3.320(Ac.) Runoff from this stream = 8.946(CFS) Time of concentration = 10.54 min. Rainfall intensity = 2.896(In/Hr) Area averaged loss rate (Fm) = 0.1839(In/Hr) Area averaged Pervious ratio (Ap) = 0.1881 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0900 Max loss rate(Fm)= 0.088(In/Hr) Initial subarea data: Initial area flow distance = 689.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 980.590(Ft.) Difference in elevation = 7.020(Ft.) Slope = 0.01018 s(%)= 1.02 TC = k(0.297)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.143 min. Rainfall intensity = 2.963(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.873 Subarea runoff = 5.797(CFS) Total initial stream area = 2.240(Ac.) Pervious area fraction = 0.090 Initial area Fm value = 0.088(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.240(Ac.) Runoff from this stream = 5.797(CFS) Time of concentration = 10.14 min. Rainfall intensity = 2.963(In/Hr) Area averaged loss rate (Fm) = 0.0880(In/Hr) Area averaged Pervious ratio (Ap) = 0.0900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 8.95 3.320 10.54 0.184 2.896 2 5.80 2.240 10.14 0.088 2.963 Qmax(1) = 1.000 * 1.000 * 8.946) + 0.977 * 1.000 * 5.797) + = 14.608 Qmax(2) = 1.025 * 0.963 * 8.946) + 1.000 * 1.000 * 5.797) + = 14.621 Total of 2 streams to confluence: Flow rates before confluence point: 8.946 5.797 Maximum flow rates at confluence using above data: 14.608 14.621 Area of streams before confluence: 3.320 2.240 Effective area values after confluence: 5.560 5.436 Results of confluence: Total flow rate = 14.621(CFS) Time of concentration = 10.143 min. Effective stream area after confluence = 5.436(Ac.) Study area average Pervious fraction(Ap) = 0.149 Study area average soil loss rate(Fm) = 0.145(In/Hr) Study area total (this main stream) = 5.56(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 968.390(Ft.) Downstream point/station elevation = 966.540(Ft.) Pipe length = 211.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 14.621(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 14.621(CFS) Normal flow depth in pipe = 16.95(In.) Flow top width inside pipe = 16.58(In.) Critical Depth = 17.01(In.) Pipe flow velocity = 7.03(Ft/s) Travel time through pipe = 0.50 min. Time of concentration (TC) = 10.64 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 5.436(Ac.) Runoff from this stream = 14.621(CFS) Time of concentration = 10.64 min. Rainfall intensity = 2.879(In/Hr) Area averaged loss rate (Fm) = 0.1453(In/Hr) Area averaged Pervious ratio (Ap) = 0.1486 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.2700 Max loss rate(Fm)= 0.264(In/Hr) Initial subarea data: Initial area flow distance = 436.910(Ft.) Top (of initial area) elevation = 986.380(Ft.) Bottom (of initial area) elevation = 973.310(Ft.) Difference in elevation = 13.070(Ft.) Slope = 0.02991 s(%)= 2.99 TC = k(0.341)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.831 min. Rainfall intensity = 3.461(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.831 Subarea runoff = 2.820(CFS) Total initial stream area = 0.980(Ac.) Pervious area fraction = 0.270 Initial area Fm value = 0.264(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.980(Ac.) Runoff from this stream = 2.820(CFS) Time of concentration = 7.83 min. Rainfall intensity = 3.461(In/Hr) Area averaged loss rate (Fm) = 0.2640(In/Hr) Area averaged Pervious ratio (Ap) = 0.2700 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 14.62 5.436 10.64 0.145 2.879 2 2.82 0.980 7.83 0.264 3.461 Qmax(1) = 1.000 * 1.000 * 14.621) + 0.818 * 1.000 * 2.820) + = 16.928 Qmax(2) = 1.213 * 0.736 * 14.621) + 1.000 * 1.000 * 2.820) + = 15.868 Total of 2 streams to confluence: Flow rates before confluence point: 14.621 2.820 Maximum flow rates at confluence using above data: 16.928 15.868 Area of streams before confluence: 5.436 0.980 Effective area values after confluence: 6.416 4.980 Results of confluence: Total flow rate = 16.928(CFS) Time of concentration = 10.643 min. Effective stream area after confluence = 6.416(Ac.) Study area average Pervious fraction(Ap) = 0.167 Study area average soil loss rate(Fm) = 0.163(In/Hr) Study area total (this main stream) = 6.42(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.416(Ac.) Runoff from this stream = 16.928(CFS) Time of concentration = 10.64 min. Rainfall intensity = 2.879(In/Hr) Area averaged loss rate (Fm) = 0.1634(In/Hr) Area averaged Pervious ratio (Ap) = 0.1671 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0300 Max loss rate(Fm)= 0.029(In/Hr) Initial subarea data: Initial area flow distance = 276.950(Ft.) Top (of initial area) elevation = 986.510(Ft.) Bottom (of initial area) elevation = 973.530(Ft.) Difference in elevation = 12.980(Ft.) Slope = 0.04687 s(%)= 4.69 TC = k(0.282)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 4.930 min. Rainfall intensity = 4.568(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.894 Subarea runoff = 1.307(CFS) Total initial stream area = 0.320(Ac.) Pervious area fraction = 0.030 Initial area Fm value = 0.029(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.320(Ac.) Runoff from this stream = 1.307(CFS) Time of concentration = 4.93 min. Rainfall intensity = 4.568(In/Hr) Area averaged loss rate (Fm) = 0.0293(In/Hr) Area averaged Pervious ratio (Ap) = 0.0300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 16.93 6.416 10.64 0.163 2.879 2 1.31 0.320 4.93 0.029 4.568 Qmax(1) = 1.000 * 1.000 * 16.928) + 0.628 * 1.000 * 1.307) + = 17.748 Qmax(2) = 1.622 * 0.463 * 16.928) + 1.000 * 1.000 * 1.307) + = 14.027 Total of 2 streams to confluence: Flow rates before confluence point: 16.928 1.307 Maximum flow rates at confluence using above data: 17.748 14.027 Area of streams before confluence: 6.416 0.320 Effective area values after confluence: 6.736 3.292 Results of confluence: Total flow rate = 17.748(CFS) Time of concentration = 10.643 min. Effective stream area after confluence = 6.736(Ac.) Study area average Pervious fraction(Ap) = 0.161 Study area average soil loss rate(Fm) = 0.157(In/Hr) Study area total (this main stream) = 6.74(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.736(Ac.) Runoff from this stream = 17.748(CFS) Time of concentration = 10.64 min. Rainfall intensity = 2.879(In/Hr) Area averaged loss rate (Fm) = 0.1570(In/Hr) Area averaged Pervious ratio (Ap) = 0.1606 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.2300 Max loss rate(Fm)= 0.225(In/Hr) Initial subarea data: Initial area flow distance = 333.920(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 974.620(Ft.) Difference in elevation = 8.980(Ft.) Slope = 0.02689 s(%)= 2.69 TC = k(0.331)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.977 min. Rainfall intensity = 3.709(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.845 Subarea runoff = 2.603(CFS) Total initial stream area = 0.830(Ac.) Pervious area fraction = 0.230 Initial area Fm value = 0.225(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.830(Ac.) Runoff from this stream = 2.603(CFS) Time of concentration = 6.98 min. Rainfall intensity = 3.709(In/Hr) Area averaged loss rate (Fm) = 0.2249(In/Hr) Area averaged Pervious ratio (Ap) = 0.2300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 17.75 6.736 10.64 0.157 2.879 2 2.60 0.830 6.98 0.225 3.709 Qmax(1) = 1.000 * 1.000 * 17.748) + 0.762 * 1.000 * 2.603) + = 19.731 Qmax(2) = 1.305 * 0.656 * 17.748) + 1.000 * 1.000 * 2.603) + = 17.786 Total of 2 streams to confluence: Flow rates before confluence point: 17.748 2.603 Maximum flow rates at confluence using above data: 19.731 17.786 Area of streams before confluence: 6.736 0.830 Effective area values after confluence: 7.566 5.245 Results of confluence: Total flow rate = 19.731(CFS) Time of concentration = 10.643 min. Effective stream area after confluence = 7.566(Ac.) Study area average Pervious fraction(Ap) = 0.168 Study area average soil loss rate(Fm) = 0.164(In/Hr) Study area total (this main stream) = 7.57(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.540(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 176.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 19.731(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 19.731(CFS) Normal flow depth in pipe = 18.35(In.) Flow top width inside pipe = 20.36(In.) Critical Depth = 19.14(In.) Pipe flow velocity = 7.65(Ft/s) Travel time through pipe = 0.38 min. Time of concentration (TC) = 11.03 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 7.566(Ac.) Runoff from this stream = 19.731(CFS) Time of concentration = 11.03 min. Rainfall intensity = 2.819(In/Hr) Area averaged loss rate (Fm) = 0.1645(In/Hr) Area averaged Pervious ratio (Ap) = 0.1682 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 49.62 16.197 8.52 0.088 3.290 2 19.73 7.566 11.03 0.164 2.819 Qmax(1) = 1.000 * 1.000 * 49.625) + 1.178 * 0.773 * 19.731) + = 67.581 Qmax(2) = 0.853 * 1.000 * 49.625) + 1.000 * 1.000 * 19.731) + = 62.049 Total of 2 main streams to confluence: Flow rates before confluence point: 50.625 20.731 Maximum flow rates at confluence using above data: 67.581 62.049 Area of streams before confluence: 16.197 7.566 Effective area values after confluence: 22.044 23.763 Results of confluence: Total flow rate = 67.581(CFS) Time of concentration = 8.521 min. Effective stream area after confluence = 22.044(Ac.) Study area average Pervious fraction(Ap) = 0.115 Study area average soil loss rate(Fm) = 0.113(In/Hr) Study area total = 23.76(Ac.) End of computations, Total Study Area = 24.46 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.118 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 25 YEAR, RATIONAL METHOD POST-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 25.0 Computed rainfall intensity: Storm year = 25.00 1 hour rainfall = 1.020 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.000 to Point/Station 5.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.3100 Max loss rate(Fm)= 0.303(In/Hr) Initial subarea data: Initial area flow distance = 228.380(Ft.) Top (of initial area) elevation = 1001.000(Ft.) Bottom (of initial area) elevation = 987.460(Ft.) Difference in elevation = 13.540(Ft.) Slope = 0.05929 s(%)= 5.93 TC = k(0.351)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.421 min. Rainfall intensity = 4.315(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.837 Subarea runoff = 6.933(CFS) Total initial stream area = 1.920(Ac.) Pervious area fraction = 0.310 Initial area Fm value = 0.303(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 982.460(Ft.) Downstream point/station elevation = 977.660(Ft.) Pipe length = 365.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 6.933(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 6.933(CFS) Normal flow depth in pipe = 11.51(In.) Flow top width inside pipe = 12.68(In.) Critical Depth = 12.67(In.) Pipe flow velocity = 6.86(Ft/s) Travel time through pipe = 0.89 min. Time of concentration (TC) = 6.31 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 1.920(Ac.) Runoff from this stream = 6.933(CFS) Time of concentration = 6.31 min. Rainfall intensity = 3.940(In/Hr) Area averaged loss rate (Fm) = 0.3031(In/Hr) Area averaged Pervious ratio (Ap) = 0.3100 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 487.230(Ft.) Top (of initial area) elevation = 996.020(Ft.) Bottom (of initial area) elevation = 985.200(Ft.) Difference in elevation = 10.820(Ft.) Slope = 0.02221 s(%)= 2.22 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.239 min. Rainfall intensity = 3.628(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.890 Subarea runoff = 14.503(CFS) Total initial stream area = 4.490(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 4.490(Ac.) Runoff from this stream = 14.503(CFS) Time of concentration = 7.24 min. Rainfall intensity = 3.628(In/Hr) Area averaged loss rate (Fm) = 0.0391(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 6.93 1.920 6.31 0.303 3.940 2 14.50 4.490 7.24 0.039 3.628 Qmax(1) = 1.000 * 1.000 * 6.933) + 1.087 * 0.871 * 14.503) + = 20.672 Qmax(2) = 0.914 * 1.000 * 6.933) + 1.000 * 1.000 * 14.503) + = 20.841 Total of 2 main streams to confluence: Flow rates before confluence point: 7.933 15.503 Maximum flow rates at confluence using above data: 20.672 20.841 Area of streams before confluence: 1.920 4.490 Effective area values after confluence: 5.833 6.410 Results of confluence: Total flow rate = 20.841(CFS) Time of concentration = 7.239 min. Effective stream area after confluence = 6.410(Ac.) Study area average Pervious fraction(Ap) = 0.121 Study area average soil loss rate(Fm) = 0.118(In/Hr) Study area total = 6.41(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 977.660(Ft.) Downstream point/station elevation = 971.000(Ft.) Pipe length = 490.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 20.841(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 20.841(CFS) Normal flow depth in pipe = 16.10(In.) Flow top width inside pipe = 22.55(In.) Critical Depth = 19.63(In.) Pipe flow velocity = 9.31(Ft/s) Travel time through pipe = 0.88 min. Time of concentration (TC) = 8.12 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 6.410(Ac.) Runoff from this stream = 20.841(CFS) Time of concentration = 8.12 min. Rainfall intensity = 3.387(In/Hr) Area averaged loss rate (Fm) = 0.1182(In/Hr) Area averaged Pervious ratio (Ap) = 0.1209 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Pervious ratio(Ap) = 0.0500 Max loss rate(Fm)= 0.049(In/Hr) Initial subarea data: Initial area flow distance = 590.460(Ft.) Top (of initial area) elevation = 990.390(Ft.) Bottom (of initial area) elevation = 982.710(Ft.) Difference in elevation = 7.680(Ft.) Slope = 0.01301 s(%)= 1.30 TC = k(0.287)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.775 min. Rainfall intensity = 3.232(In/Hr) for a 25.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.886 Subarea runoff = 18.710(CFS) Total initial stream area = 6.530(Ac.) Pervious area fraction = 0.050 Initial area Fm value = 0.049(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 6.530(Ac.) Runoff from this stream = 18.710(CFS) Time of concentration = 8.78 min. Rainfall intensity = 3.232(In/Hr) Area averaged loss rate (Fm) = 0.0489(In/Hr) Area averaged Pervious ratio (Ap) = 0.0500 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 20.84 6.410 8.12 0.118 3.387 2 18.71 6.530 8.78 0.049 3.232 Qmax(1) = 1.000 * 1.000 * 20.841) + 1.049 * 0.925 * 18.710) + = 38.989 Qmax(2) = 0.953 * 1.000 * 20.841) + 1.000 * 1.000 * 18.710) + = 38.563 Total of 2 main streams to confluence: Flow rates before confluence point: 21.841 19.710 Maximum flow rates at confluence using above data: 38.989 38.563 Area of streams before confluence: 6.410 6.530 Effective area values after confluence: 12.450 12.940 Results of confluence: Total flow rate = 38.989(CFS) Time of concentration = 8.116 min. Effective stream area after confluence = 12.450(Ac.) Study area average Pervious fraction(Ap) = 0.085 Study area average soil loss rate(Fm) = 0.083(In/Hr) Study area total = 12.94(Ac.) End of computations, Total Study Area = 12.94 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.085 Area averaged SCS curve number = 32.0 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX B.8 RATIONAL METHOD ANALYSIS POST-DEVELOPMENT CONDITIONS – 100 YEAR San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 100 YEAR, RATIONAL METHOD POST-CONDITION, AREA A ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0 Computed rainfall intensity: Storm year = 100.00 1 hour rainfall = 1.330 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 3 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.000 to Point/Station 3.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.4000 Max loss rate(Fm)= 0.314(In/Hr) Initial subarea data: Initial area flow distance = 161.250(Ft.) Top (of initial area) elevation = 999.000(Ft.) Bottom (of initial area) elevation = 990.820(Ft.) Difference in elevation = 8.180(Ft.) Slope = 0.05073 s(%)= 5.07 TC = k(0.373)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.174 min. Rainfall intensity = 5.787(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.851 Subarea runoff = 1.872(CFS) Total initial stream area = 0.380(Ac.) Pervious area fraction = 0.400 Initial area Fm value = 0.314(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 985.820(Ft.) Downstream point/station elevation = 984.570(Ft.) Pipe length = 209.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.872(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 1.872(CFS) Normal flow depth in pipe = 7.25(In.) Flow top width inside pipe = 11.74(In.) Critical Depth = 6.99(In.) Pipe flow velocity = 3.77(Ft/s) Travel time through pipe = 0.92 min. Time of concentration (TC) = 6.10 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.100 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.380(Ac.) Runoff from this stream = 1.872(CFS) Time of concentration = 6.10 min. Rainfall intensity = 5.244(In/Hr) Area averaged loss rate (Fm) = 0.3141(In/Hr) Area averaged Pervious ratio (Ap) = 0.4000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.306(In/Hr) Initial subarea data: Initial area flow distance = 163.100(Ft.) Top (of initial area) elevation = 997.080(Ft.) Bottom (of initial area) elevation = 990.760(Ft.) Difference in elevation = 6.320(Ft.) Slope = 0.03875 s(%)= 3.87 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.449 min. Rainfall intensity = 5.610(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.851 Subarea runoff = 1.766(CFS) Total initial stream area = 0.370(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.306(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.370(Ac.) Runoff from this stream = 1.766(CFS) Time of concentration = 5.45 min. Rainfall intensity = 5.610(In/Hr) Area averaged loss rate (Fm) = 0.3062(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.87 0.380 6.10 0.314 5.244 2 1.77 0.370 5.45 0.306 5.610 Qmax(1) = 1.000 * 1.000 * 1.872) + 0.931 * 1.000 * 1.766) + = 3.516 Qmax(2) = 1.074 * 0.894 * 1.872) + 1.000 * 1.000 * 1.766) + = 3.563 Total of 2 streams to confluence: Flow rates before confluence point: 1.872 1.766 Maximum flow rates at confluence using above data: 3.516 3.563 Area of streams before confluence: 0.380 0.370 Effective area values after confluence: 0.750 0.710 Results of confluence: Total flow rate = 3.563(CFS) Time of concentration = 5.449 min. Effective stream area after confluence = 0.710(Ac.) Study area average Pervious fraction(Ap) = 0.395 Study area average soil loss rate(Fm) = 0.310(In/Hr) Study area total (this main stream) = 0.75(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 984.570(Ft.) Downstream point/station elevation = 983.370(Ft.) Pipe length = 200.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 3.563(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 3.563(CFS) Normal flow depth in pipe = 9.35(In.) Flow top width inside pipe = 14.54(In.) Critical Depth = 9.15(In.) Pipe flow velocity = 4.43(Ft/s) Travel time through pipe = 0.75 min. Time of concentration (TC) = 6.20 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.200 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 0.710(Ac.) Runoff from this stream = 3.563(CFS) Time of concentration = 6.20 min. Rainfall intensity = 5.191(In/Hr) Area averaged loss rate (Fm) = 0.3102(In/Hr) Area averaged Pervious ratio (Ap) = 0.3951 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.3800 Max loss rate(Fm)= 0.298(In/Hr) Initial subarea data: Initial area flow distance = 161.380(Ft.) Top (of initial area) elevation = 995.070(Ft.) Bottom (of initial area) elevation = 990.650(Ft.) Difference in elevation = 4.420(Ft.) Slope = 0.02739 s(%)= 2.74 TC = k(0.368)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.777 min. Rainfall intensity = 5.416(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.850 Subarea runoff = 1.935(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.380 Initial area Fm value = 0.298(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.300 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.420(Ac.) Runoff from this stream = 1.935(CFS) Time of concentration = 5.78 min. Rainfall intensity = 5.416(In/Hr) Area averaged loss rate (Fm) = 0.2984(In/Hr) Area averaged Pervious ratio (Ap) = 0.3800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 3.56 0.710 6.20 0.310 5.191 2 1.93 0.420 5.78 0.298 5.416 Qmax(1) = 1.000 * 1.000 * 3.563) + 0.956 * 1.000 * 1.935) + = 5.412 Qmax(2) = 1.046 * 0.932 * 3.563) + 1.000 * 1.000 * 1.935) + = 5.407 Total of 2 streams to confluence: Flow rates before confluence point: 3.563 1.935 Maximum flow rates at confluence using above data: 5.412 5.407 Area of streams before confluence: 0.710 0.420 Effective area values after confluence: 1.130 1.081 Results of confluence: Total flow rate = 5.412(CFS) Time of concentration = 6.202 min. Effective stream area after confluence = 1.130(Ac.) Study area average Pervious fraction(Ap) = 0.389 Study area average soil loss rate(Fm) = 0.306(In/Hr) Study area total (this main stream) = 1.13(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 983.370(Ft.) Downstream point/station elevation = 981.410(Ft.) Pipe length = 327.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 5.412(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 5.412(CFS) Normal flow depth in pipe = 10.73(In.) Flow top width inside pipe = 17.66(In.) Critical Depth = 10.76(In.) Pipe flow velocity = 4.93(Ft/s) Travel time through pipe = 1.11 min. Time of concentration (TC) = 7.31 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.300 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.130(Ac.) Runoff from this stream = 5.412(CFS) Time of concentration = 7.31 min. Rainfall intensity = 4.704(In/Hr) Area averaged loss rate (Fm) = 0.3058(In/Hr) Area averaged Pervious ratio (Ap) = 0.3895 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.3900 Max loss rate(Fm)= 0.306(In/Hr) Initial subarea data: Initial area flow distance = 346.050(Ft.) Top (of initial area) elevation = 991.360(Ft.) Bottom (of initial area) elevation = 985.560(Ft.) Difference in elevation = 5.800(Ft.) Slope = 0.01676 s(%)= 1.68 TC = k(0.371)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.705 min. Rainfall intensity = 4.235(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.835 Subarea runoff = 2.758(CFS) Total initial stream area = 0.780(Ac.) Pervious area fraction = 0.390 Initial area Fm value = 0.306(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.400 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 0.780(Ac.) Runoff from this stream = 2.758(CFS) Time of concentration = 8.71 min. Rainfall intensity = 4.235(In/Hr) Area averaged loss rate (Fm) = 0.3062(In/Hr) Area averaged Pervious ratio (Ap) = 0.3900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 5.41 1.130 7.31 0.306 4.704 2 2.76 0.780 8.71 0.306 4.235 Qmax(1) = 1.000 * 1.000 * 5.412) + 1.119 * 0.840 * 2.758) + = 8.004 Qmax(2) = 0.893 * 1.000 * 5.412) + 1.000 * 1.000 * 2.758) + = 7.594 Total of 2 streams to confluence: Flow rates before confluence point: 5.412 2.758 Maximum flow rates at confluence using above data: 8.004 7.594 Area of streams before confluence: 1.130 0.780 Effective area values after confluence: 1.784 1.910 Results of confluence: Total flow rate = 8.004(CFS) Time of concentration = 7.309 min. Effective stream area after confluence = 1.784(Ac.) Study area average Pervious fraction(Ap) = 0.390 Study area average soil loss rate(Fm) = 0.306(In/Hr) Study area total (this main stream) = 1.91(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 981.410(Ft.) Downstream point/station elevation = 978.760(Ft.) Pipe length = 156.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 8.004(CFS) Nearest computed pipe diameter = 15.00(In.) Calculated individual pipe flow = 8.004(CFS) Normal flow depth in pipe = 11.67(In.) Flow top width inside pipe = 12.47(In.) Critical Depth = 13.37(In.) Pipe flow velocity = 7.81(Ft/s) Travel time through pipe = 0.33 min. Time of concentration (TC) = 7.64 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.400 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 1.784(Ac.) Runoff from this stream = 8.004(CFS) Time of concentration = 7.64 min. Rainfall intensity = 4.580(In/Hr) Area averaged loss rate (Fm) = 0.3060(In/Hr) Area averaged Pervious ratio (Ap) = 0.3897 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.1800 Max loss rate(Fm)= 0.141(In/Hr) Initial subarea data: Initial area flow distance = 370.380(Ft.) Top (of initial area) elevation = 991.730(Ft.) Bottom (of initial area) elevation = 984.280(Ft.) Difference in elevation = 7.450(Ft.) Slope = 0.02011 s(%)= 2.01 TC = k(0.319)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.420 min. Rainfall intensity = 4.661(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.873 Subarea runoff = 7.241(CFS) Total initial stream area = 1.780(Ac.) Pervious area fraction = 0.180 Initial area Fm value = 0.141(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.500 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 1.780(Ac.) Runoff from this stream = 7.241(CFS) Time of concentration = 7.42 min. Rainfall intensity = 4.661(In/Hr) Area averaged loss rate (Fm) = 0.1413(In/Hr) Area averaged Pervious ratio (Ap) = 0.1800 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 8.00 1.784 7.64 0.306 4.580 2 7.24 1.780 7.42 0.141 4.661 Qmax(1) = 1.000 * 1.000 * 8.004) + 0.982 * 1.000 * 7.241) + = 15.114 Qmax(2) = 1.019 * 0.971 * 8.004) + 1.000 * 1.000 * 7.241) + = 15.161 Total of 2 streams to confluence: Flow rates before confluence point: 8.004 7.241 Maximum flow rates at confluence using above data: 15.114 15.161 Area of streams before confluence: 1.784 1.780 Effective area values after confluence: 3.564 3.513 Results of confluence: Total flow rate = 15.161(CFS) Time of concentration = 7.420 min. Effective stream area after confluence = 3.513(Ac.) Study area average Pervious fraction(Ap) = 0.285 Study area average soil loss rate(Fm) = 0.224(In/Hr) Study area total (this main stream) = 3.56(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 978.760(Ft.) Downstream point/station elevation = 973.280(Ft.) Pipe length = 328.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 15.161(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 15.161(CFS) Normal flow depth in pipe = 13.45(In.) Flow top width inside pipe = 20.15(In.) Critical Depth = 17.31(In.) Pipe flow velocity = 9.32(Ft/s) Travel time through pipe = 0.59 min. Time of concentration (TC) = 8.01 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.500 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 3.513(Ac.) Runoff from this stream = 15.161(CFS) Time of concentration = 8.01 min. Rainfall intensity = 4.453(In/Hr) Area averaged loss rate (Fm) = 0.2237(In/Hr) Area averaged Pervious ratio (Ap) = 0.2850 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.031(In/Hr) Initial subarea data: Initial area flow distance = 456.790(Ft.) Top (of initial area) elevation = 987.140(Ft.) Bottom (of initial area) elevation = 980.860(Ft.) Difference in elevation = 6.280(Ft.) Slope = 0.01375 s(%)= 1.37 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.764 min. Rainfall intensity = 4.536(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.894 Subarea runoff = 21.446(CFS) Total initial stream area = 5.290(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.031(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.600 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 5.290(Ac.) Runoff from this stream = 21.446(CFS) Time of concentration = 7.76 min. Rainfall intensity = 4.536(In/Hr) Area averaged loss rate (Fm) = 0.0314(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 15.16 3.513 8.01 0.224 4.453 2 21.45 5.290 7.76 0.031 4.536 Qmax(1) = 1.000 * 1.000 * 15.161) + 0.982 * 1.000 * 21.446) + = 36.214 Qmax(2) = 1.020 * 0.970 * 15.161) + 1.000 * 1.000 * 21.446) + = 36.437 Total of 2 streams to confluence: Flow rates before confluence point: 15.161 21.446 Maximum flow rates at confluence using above data: 36.214 36.437 Area of streams before confluence: 3.513 5.290 Effective area values after confluence: 8.803 8.697 Results of confluence: Total flow rate = 36.437(CFS) Time of concentration = 7.764 min. Effective stream area after confluence = 8.697(Ac.) Study area average Pervious fraction(Ap) = 0.138 Study area average soil loss rate(Fm) = 0.108(In/Hr) Study area total (this main stream) = 8.80(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 973.280(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 485.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 36.437(CFS) Nearest computed pipe diameter = 27.00(In.) Calculated individual pipe flow = 36.437(CFS) Normal flow depth in pipe = 20.04(In.) Flow top width inside pipe = 23.62(In.) Critical Depth = 24.45(In.) Pipe flow velocity = 11.52(Ft/s) Travel time through pipe = 0.70 min. Time of concentration (TC) = 8.47 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.600 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 1 Stream flow area = 8.697(Ac.) Runoff from this stream = 36.437(CFS) Time of concentration = 8.47 min. Rainfall intensity = 4.307(In/Hr) Area averaged loss rate (Fm) = 0.1082(In/Hr) Area averaged Pervious ratio (Ap) = 0.1378 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.031(In/Hr) Initial subarea data: Initial area flow distance = 653.410(Ft.) Top (of initial area) elevation = 985.500(Ft.) Bottom (of initial area) elevation = 975.420(Ft.) Difference in elevation = 10.080(Ft.) Slope = 0.01543 s(%)= 1.54 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.756 min. Rainfall intensity = 4.221(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.893 Subarea runoff = 29.219(CFS) Total initial stream area = 7.750(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.031(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 1 in normal stream number 2 Stream flow area = 7.750(Ac.) Runoff from this stream = 29.219(CFS) Time of concentration = 8.76 min. Rainfall intensity = 4.221(In/Hr) Area averaged loss rate (Fm) = 0.0314(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 36.44 8.697 8.47 0.108 4.307 2 29.22 7.750 8.76 0.031 4.221 Qmax(1) = 1.000 * 1.000 * 36.437) + 1.021 * 0.967 * 29.219) + = 65.270 Qmax(2) = 0.980 * 1.000 * 36.437) + 1.000 * 1.000 * 29.219) + = 64.910 Total of 2 streams to confluence: Flow rates before confluence point: 36.437 29.219 Maximum flow rates at confluence using above data: 65.270 64.910 Area of streams before confluence: 8.697 7.750 Effective area values after confluence: 16.190 16.447 Results of confluence: Total flow rate = 65.270(CFS) Time of concentration = 8.466 min. Effective stream area after confluence = 16.190(Ac.) Study area average Pervious fraction(Ap) = 0.092 Study area average soil loss rate(Fm) = 0.072(In/Hr) Study area total (this main stream) = 16.45(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 16.190(Ac.) Runoff from this stream = 65.270(CFS) Time of concentration = 8.47 min. Rainfall intensity = 4.307(In/Hr) Area averaged loss rate (Fm) = 0.0720(In/Hr) Area averaged Pervious ratio (Ap) = 0.0917 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.800 to Point/Station 3.900 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.5200 Max loss rate(Fm)= 0.408(In/Hr) Initial subarea data: Initial area flow distance = 160.000(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 980.790(Ft.) Difference in elevation = 2.810(Ft.) Slope = 0.01756 s(%)= 1.76 TC = k(0.403)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.883 min. Rainfall intensity = 4.876(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.825 Subarea runoff = 1.689(CFS) Total initial stream area = 0.420(Ac.) Pervious area fraction = 0.520 Initial area Fm value = 0.408(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 975.790(Ft.) Downstream point/station elevation = 972.540(Ft.) Pipe length = 372.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 1.689(CFS) Nearest computed pipe diameter = 12.00(In.) Calculated individual pipe flow = 1.689(CFS) Normal flow depth in pipe = 6.05(In.) Flow top width inside pipe = 12.00(In.) Critical Depth = 6.63(In.) Pipe flow velocity = 4.26(Ft/s) Travel time through pipe = 1.46 min. Time of concentration (TC) = 8.34 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.900 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 0.420(Ac.) Runoff from this stream = 1.689(CFS) Time of concentration = 8.34 min. Rainfall intensity = 4.346(In/Hr) Area averaged loss rate (Fm) = 0.4083(In/Hr) Area averaged Pervious ratio (Ap) = 0.5200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.1400 Max loss rate(Fm)= 0.110(In/Hr) Initial subarea data: Initial area flow distance = 534.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 981.360(Ft.) Difference in elevation = 6.250(Ft.) Slope = 0.01169 s(%)= 1.17 TC = k(0.309)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 9.280 min. Rainfall intensity = 4.076(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.876 Subarea runoff = 10.351(CFS) Total initial stream area = 2.900(Ac.) Pervious area fraction = 0.140 Initial area Fm value = 0.110(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.000 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.900(Ac.) Runoff from this stream = 10.351(CFS) Time of concentration = 9.28 min. Rainfall intensity = 4.076(In/Hr) Area averaged loss rate (Fm) = 0.1099(In/Hr) Area averaged Pervious ratio (Ap) = 0.1400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 1.69 0.420 8.34 0.408 4.346 2 10.35 2.900 9.28 0.110 4.076 Qmax(1) = 1.000 * 1.000 * 1.689) + 1.068 * 0.899 * 10.351) + = 11.623 Qmax(2) = 0.931 * 1.000 * 1.689) + 1.000 * 1.000 * 10.351) + = 11.924 Total of 2 streams to confluence: Flow rates before confluence point: 1.689 10.351 Maximum flow rates at confluence using above data: 11.623 11.924 Area of streams before confluence: 0.420 2.900 Effective area values after confluence: 3.026 3.320 Results of confluence: Total flow rate = 11.924(CFS) Time of concentration = 9.280 min. Effective stream area after confluence = 3.320(Ac.) Study area average Pervious fraction(Ap) = 0.188 Study area average soil loss rate(Fm) = 0.148(In/Hr) Study area total (this main stream) = 3.32(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 972.540(Ft.) Downstream point/station elevation = 968.390(Ft.) Pipe length = 475.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 11.924(CFS) Nearest computed pipe diameter = 21.00(In.) Calculated individual pipe flow = 11.924(CFS) Normal flow depth in pipe = 14.27(In.) Flow top width inside pipe = 19.60(In.) Critical Depth = 15.44(In.) Pipe flow velocity = 6.85(Ft/s) Travel time through pipe = 1.16 min. Time of concentration (TC) = 10.44 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.000 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 3.320(Ac.) Runoff from this stream = 11.924(CFS) Time of concentration = 10.44 min. Rainfall intensity = 3.799(In/Hr) Area averaged loss rate (Fm) = 0.1477(In/Hr) Area averaged Pervious ratio (Ap) = 0.1881 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0900 Max loss rate(Fm)= 0.071(In/Hr) Initial subarea data: Initial area flow distance = 689.460(Ft.) Top (of initial area) elevation = 987.610(Ft.) Bottom (of initial area) elevation = 980.590(Ft.) Difference in elevation = 7.020(Ft.) Slope = 0.01018 s(%)= 1.02 TC = k(0.297)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 10.143 min. Rainfall intensity = 3.864(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.884 Subarea runoff = 7.648(CFS) Total initial stream area = 2.240(Ac.) Pervious area fraction = 0.090 Initial area Fm value = 0.071(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.100 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 2.240(Ac.) Runoff from this stream = 7.648(CFS) Time of concentration = 10.14 min. Rainfall intensity = 3.864(In/Hr) Area averaged loss rate (Fm) = 0.0707(In/Hr) Area averaged Pervious ratio (Ap) = 0.0900 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 11.92 3.320 10.44 0.148 3.799 2 7.65 2.240 10.14 0.071 3.864 Qmax(1) = 1.000 * 1.000 * 11.924) + 0.983 * 1.000 * 7.648) + = 19.439 Qmax(2) = 1.018 * 0.972 * 11.924) + 1.000 * 1.000 * 7.648) + = 19.444 Total of 2 streams to confluence: Flow rates before confluence point: 11.924 7.648 Maximum flow rates at confluence using above data: 19.439 19.444 Area of streams before confluence: 3.320 2.240 Effective area values after confluence: 5.560 5.467 Results of confluence: Total flow rate = 19.444(CFS) Time of concentration = 10.143 min. Effective stream area after confluence = 5.467(Ac.) Study area average Pervious fraction(Ap) = 0.149 Study area average soil loss rate(Fm) = 0.117(In/Hr) Study area total (this main stream) = 5.56(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 968.390(Ft.) Downstream point/station elevation = 966.540(Ft.) Pipe length = 211.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 19.444(CFS) Nearest computed pipe diameter = 24.00(In.) Calculated individual pipe flow = 19.444(CFS) Normal flow depth in pipe = 18.09(In.) Flow top width inside pipe = 20.68(In.) Critical Depth = 19.03(In.) Pipe flow velocity = 7.65(Ft/s) Travel time through pipe = 0.46 min. Time of concentration (TC) = 10.60 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.100 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 5.467(Ac.) Runoff from this stream = 19.444(CFS) Time of concentration = 10.60 min. Rainfall intensity = 3.763(In/Hr) Area averaged loss rate (Fm) = 0.1166(In/Hr) Area averaged Pervious ratio (Ap) = 0.1486 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.2700 Max loss rate(Fm)= 0.212(In/Hr) Initial subarea data: Initial area flow distance = 436.910(Ft.) Top (of initial area) elevation = 986.380(Ft.) Bottom (of initial area) elevation = 973.310(Ft.) Difference in elevation = 13.070(Ft.) Slope = 0.02991 s(%)= 2.99 TC = k(0.341)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.831 min. Rainfall intensity = 4.513(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.858 Subarea runoff = 3.793(CFS) Total initial stream area = 0.980(Ac.) Pervious area fraction = 0.270 Initial area Fm value = 0.212(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.980(Ac.) Runoff from this stream = 3.793(CFS) Time of concentration = 7.83 min. Rainfall intensity = 4.513(In/Hr) Area averaged loss rate (Fm) = 0.2120(In/Hr) Area averaged Pervious ratio (Ap) = 0.2700 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 19.44 5.467 10.60 0.117 3.763 2 3.79 0.980 7.83 0.212 4.513 Qmax(1) = 1.000 * 1.000 * 19.444) + 0.826 * 1.000 * 3.793) + = 22.576 Qmax(2) = 1.206 * 0.739 * 19.444) + 1.000 * 1.000 * 3.793) + = 21.110 Total of 2 streams to confluence: Flow rates before confluence point: 19.444 3.793 Maximum flow rates at confluence using above data: 22.576 21.110 Area of streams before confluence: 5.467 0.980 Effective area values after confluence: 6.447 5.018 Results of confluence: Total flow rate = 22.576(CFS) Time of concentration = 10.602 min. Effective stream area after confluence = 6.447(Ac.) Study area average Pervious fraction(Ap) = 0.167 Study area average soil loss rate(Fm) = 0.131(In/Hr) Study area total (this main stream) = 6.45(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.447(Ac.) Runoff from this stream = 22.576(CFS) Time of concentration = 10.60 min. Rainfall intensity = 3.763(In/Hr) Area averaged loss rate (Fm) = 0.1311(In/Hr) Area averaged Pervious ratio (Ap) = 0.1670 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0300 Max loss rate(Fm)= 0.024(In/Hr) Initial subarea data: Initial area flow distance = 276.950(Ft.) Top (of initial area) elevation = 986.510(Ft.) Bottom (of initial area) elevation = 973.530(Ft.) Difference in elevation = 12.980(Ft.) Slope = 0.04687 s(%)= 4.69 TC = k(0.282)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 4.930 min. Rainfall intensity = 5.957(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.896 Subarea runoff = 1.709(CFS) Total initial stream area = 0.320(Ac.) Pervious area fraction = 0.030 Initial area Fm value = 0.024(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.320(Ac.) Runoff from this stream = 1.709(CFS) Time of concentration = 4.93 min. Rainfall intensity = 5.957(In/Hr) Area averaged loss rate (Fm) = 0.0236(In/Hr) Area averaged Pervious ratio (Ap) = 0.0300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 22.58 6.447 10.60 0.131 3.763 2 1.71 0.320 4.93 0.024 5.957 Qmax(1) = 1.000 * 1.000 * 22.576) + 0.630 * 1.000 * 1.709) + = 23.653 Qmax(2) = 1.604 * 0.465 * 22.576) + 1.000 * 1.000 * 1.709) + = 18.550 Total of 2 streams to confluence: Flow rates before confluence point: 22.576 1.709 Maximum flow rates at confluence using above data: 23.653 18.550 Area of streams before confluence: 6.447 0.320 Effective area values after confluence: 6.767 3.318 Results of confluence: Total flow rate = 23.653(CFS) Time of concentration = 10.602 min. Effective stream area after confluence = 6.767(Ac.) Study area average Pervious fraction(Ap) = 0.161 Study area average soil loss rate(Fm) = 0.126(In/Hr) Study area total (this main stream) = 6.77(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 1 Stream flow area = 6.767(Ac.) Runoff from this stream = 23.653(CFS) Time of concentration = 10.60 min. Rainfall intensity = 3.763(In/Hr) Area averaged loss rate (Fm) = 0.1260(In/Hr) Area averaged Pervious ratio (Ap) = 0.1605 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.2300 Max loss rate(Fm)= 0.181(In/Hr) Initial subarea data: Initial area flow distance = 333.920(Ft.) Top (of initial area) elevation = 983.600(Ft.) Bottom (of initial area) elevation = 974.620(Ft.) Difference in elevation = 8.980(Ft.) Slope = 0.02689 s(%)= 2.69 TC = k(0.331)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 6.977 min. Rainfall intensity = 4.837(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.866 Subarea runoff = 3.478(CFS) Total initial stream area = 0.830(Ac.) Pervious area fraction = 0.230 Initial area Fm value = 0.181(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 4.200 **** CONFLUENCE OF MINOR STREAMS **** ______________________________________________________________________ Along Main Stream number: 2 in normal stream number 2 Stream flow area = 0.830(Ac.) Runoff from this stream = 3.478(CFS) Time of concentration = 6.98 min. Rainfall intensity = 4.837(In/Hr) Area averaged loss rate (Fm) = 0.1806(In/Hr) Area averaged Pervious ratio (Ap) = 0.2300 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 23.65 6.767 10.60 0.126 3.763 2 3.48 0.830 6.98 0.181 4.837 Qmax(1) = 1.000 * 1.000 * 23.653) + 0.769 * 1.000 * 3.478) + = 26.329 Qmax(2) = 1.295 * 0.658 * 23.653) + 1.000 * 1.000 * 3.478) + = 23.639 Total of 2 streams to confluence: Flow rates before confluence point: 23.653 3.478 Maximum flow rates at confluence using above data: 26.329 23.639 Area of streams before confluence: 6.767 0.830 Effective area values after confluence: 7.597 5.283 Results of confluence: Total flow rate = 26.329(CFS) Time of concentration = 10.602 min. Effective stream area after confluence = 7.597(Ac.) Study area average Pervious fraction(Ap) = 0.168 Study area average soil loss rate(Fm) = 0.132(In/Hr) Study area total (this main stream) = 7.60(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 966.540(Ft.) Downstream point/station elevation = 965.000(Ft.) Pipe length = 176.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 26.329(CFS) Nearest computed pipe diameter = 27.00(In.) Calculated individual pipe flow = 26.329(CFS) Normal flow depth in pipe = 20.20(In.) Flow top width inside pipe = 23.44(In.) Critical Depth = 21.49(In.) Pipe flow velocity = 8.26(Ft/s) Travel time through pipe = 0.36 min. Time of concentration (TC) = 10.96 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 4.200 to Point/Station 3.700 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 7.597(Ac.) Runoff from this stream = 26.329(CFS) Time of concentration = 10.96 min. Rainfall intensity = 3.689(In/Hr) Area averaged loss rate (Fm) = 0.1320(In/Hr) Area averaged Pervious ratio (Ap) = 0.1681 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 65.27 16.190 8.47 0.072 4.307 2 26.33 7.597 10.96 0.132 3.689 Qmax(1) = 1.000 * 1.000 * 65.270) + 1.174 * 0.773 * 26.329) + = 89.144 Qmax(2) = 0.854 * 1.000 * 65.270) + 1.000 * 1.000 * 26.329) + = 82.081 Total of 2 main streams to confluence: Flow rates before confluence point: 66.270 27.329 Maximum flow rates at confluence using above data: 89.144 82.081 Area of streams before confluence: 16.190 7.597 Effective area values after confluence: 22.060 23.787 Results of confluence: Total flow rate = 89.144(CFS) Time of concentration = 8.466 min. Effective stream area after confluence = 22.060(Ac.) Study area average Pervious fraction(Ap) = 0.116 Study area average soil loss rate(Fm) = 0.091(In/Hr) Study area total = 23.79(Ac.) End of computations, Total Study Area = 24.46 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.118 Area averaged SCS curve number = 32.0 San Bernardino County Rational Hydrology Program (Hydrology Manual Date - August 1986) CIVILCADD/CIVILDESIGN Engineering Software, (c) 1989-2005 Version 7.1 Rational Hydrology Study Date: 01/22/23 ------------------------------------------------------------------------ JOB NO. 2022-318 11115 HEMLOCK AVE 100 YEAR, RATIONAL METHOD POST-CONDITION, AREA B ------------------------------------------------------------------------ Program License Serial Number 6277 ------------------------------------------------------------------------ ********* Hydrology Study Control Information ********** ------------------------------------------------------------------------ Rational hydrology study storm event year is 100.0 Computed rainfall intensity: Storm year = 100.00 1 hour rainfall = 1.330 (In.) Slope used for rainfall intensity curve b = 0.6000 Soil antecedent moisture condition (AMC) = 3 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.000 to Point/Station 5.100 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.3100 Max loss rate(Fm)= 0.243(In/Hr) Initial subarea data: Initial area flow distance = 228.380(Ft.) Top (of initial area) elevation = 1001.000(Ft.) Bottom (of initial area) elevation = 987.460(Ft.) Difference in elevation = 13.540(Ft.) Slope = 0.05929 s(%)= 5.93 TC = k(0.351)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 5.421 min. Rainfall intensity = 5.627(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.861 Subarea runoff = 9.303(CFS) Total initial stream area = 1.920(Ac.) Pervious area fraction = 0.310 Initial area Fm value = 0.243(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 982.460(Ft.) Downstream point/station elevation = 977.660(Ft.) Pipe length = 365.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 9.303(CFS) Nearest computed pipe diameter = 18.00(In.) Calculated individual pipe flow = 9.303(CFS) Normal flow depth in pipe = 11.87(In.) Flow top width inside pipe = 17.06(In.) Critical Depth = 14.15(In.) Pipe flow velocity = 7.52(Ft/s) Travel time through pipe = 0.81 min. Time of concentration (TC) = 6.23 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.100 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 1.920(Ac.) Runoff from this stream = 9.303(CFS) Time of concentration = 6.23 min. Rainfall intensity = 5.177(In/Hr) Area averaged loss rate (Fm) = 0.2434(In/Hr) Area averaged Pervious ratio (Ap) = 0.3100 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0400 Max loss rate(Fm)= 0.031(In/Hr) Initial subarea data: Initial area flow distance = 487.230(Ft.) Top (of initial area) elevation = 996.020(Ft.) Bottom (of initial area) elevation = 985.200(Ft.) Difference in elevation = 10.820(Ft.) Slope = 0.02221 s(%)= 2.22 TC = k(0.284)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 7.239 min. Rainfall intensity = 4.731(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.894 Subarea runoff = 18.991(CFS) Total initial stream area = 4.490(Ac.) Pervious area fraction = 0.040 Initial area Fm value = 0.031(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.200 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 4.490(Ac.) Runoff from this stream = 18.991(CFS) Time of concentration = 7.24 min. Rainfall intensity = 4.731(In/Hr) Area averaged loss rate (Fm) = 0.0314(In/Hr) Area averaged Pervious ratio (Ap) = 0.0400 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 9.30 1.920 6.23 0.243 5.177 2 18.99 4.490 7.24 0.031 4.731 Qmax(1) = 1.000 * 1.000 * 9.303) + 1.095 * 0.861 * 18.991) + = 27.197 Qmax(2) = 0.910 * 1.000 * 9.303) + 1.000 * 1.000 * 18.991) + = 27.453 Total of 2 main streams to confluence: Flow rates before confluence point: 10.303 19.991 Maximum flow rates at confluence using above data: 27.197 27.453 Area of streams before confluence: 1.920 4.490 Effective area values after confluence: 5.784 6.410 Results of confluence: Total flow rate = 27.453(CFS) Time of concentration = 7.239 min. Effective stream area after confluence = 6.410(Ac.) Study area average Pervious fraction(Ap) = 0.121 Study area average soil loss rate(Fm) = 0.095(In/Hr) Study area total = 6.41(Ac.) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** PIPEFLOW TRAVEL TIME (Program estimated size) **** ______________________________________________________________________ Upstream point/station elevation = 977.660(Ft.) Downstream point/station elevation = 971.000(Ft.) Pipe length = 490.00(Ft.) Manning's N = 0.013 No. of pipes = 1 Required pipe flow = 27.453(CFS) Nearest computed pipe diameter = 27.00(In.) Calculated individual pipe flow = 27.453(CFS) Normal flow depth in pipe = 17.63(In.) Flow top width inside pipe = 25.71(In.) Critical Depth = 21.90(In.) Pipe flow velocity = 9.99(Ft/s) Travel time through pipe = 0.82 min. Time of concentration (TC) = 8.06 min. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.200 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 1 Stream flow area = 6.410(Ac.) Runoff from this stream = 27.453(CFS) Time of concentration = 8.06 min. Rainfall intensity = 4.437(In/Hr) Area averaged loss rate (Fm) = 0.0949(In/Hr) Area averaged Pervious ratio (Ap) = 0.1209 Program is now starting with Main Stream No. 2 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** INITIAL AREA EVALUATION **** ______________________________________________________________________ Soil classification AP and SCS values input by user USER INPUT of soil data for subarea SCS curve number for soil(AMC 2) = 32.00 Adjusted SCS curve number for AMC 3 = 52.00 Pervious ratio(Ap) = 0.0500 Max loss rate(Fm)= 0.039(In/Hr) Initial subarea data: Initial area flow distance = 590.460(Ft.) Top (of initial area) elevation = 990.390(Ft.) Bottom (of initial area) elevation = 982.710(Ft.) Difference in elevation = 7.680(Ft.) Slope = 0.01301 s(%)= 1.30 TC = k(0.287)*[(length^3)/(elevation change)]^0.2 Initial area time of concentration = 8.775 min. Rainfall intensity = 4.215(In/Hr) for a 100.0 year storm Effective runoff coefficient used for area (Q=KCIA) is C = 0.892 Subarea runoff = 24.540(CFS) Total initial stream area = 6.530(Ac.) Pervious area fraction = 0.050 Initial area Fm value = 0.039(In/Hr) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** CONFLUENCE OF MAIN STREAMS **** ______________________________________________________________________ The following data inside Main Stream is listed: In Main Stream number: 2 Stream flow area = 6.530(Ac.) Runoff from this stream = 24.540(CFS) Time of concentration = 8.78 min. Rainfall intensity = 4.215(In/Hr) Area averaged loss rate (Fm) = 0.0393(In/Hr) Area averaged Pervious ratio (Ap) = 0.0500 Summary of stream data: Stream Flow rate Area TC Fm Rainfall Intensity No. (CFS) (Ac.) (min) (In/Hr) (In/Hr) 1 27.45 6.410 8.06 0.095 4.437 2 24.54 6.530 8.78 0.039 4.215 Qmax(1) = 1.000 * 1.000 * 27.453) + 1.053 * 0.918 * 24.540) + = 51.178 Qmax(2) = 0.949 * 1.000 * 27.453) + 1.000 * 1.000 * 24.540) + = 50.589 Total of 2 main streams to confluence: Flow rates before confluence point: 28.453 25.540 Maximum flow rates at confluence using above data: 51.178 50.589 Area of streams before confluence: 6.410 6.530 Effective area values after confluence: 12.405 12.940 Results of confluence: Total flow rate = 51.178(CFS) Time of concentration = 8.056 min. Effective stream area after confluence = 12.405(Ac.) Study area average Pervious fraction(Ap) = 0.085 Study area average soil loss rate(Fm) = 0.067(In/Hr) Study area total = 12.94(Ac.) End of computations, Total Study Area = 12.94 (Ac.) The following figures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. Area averaged pervious area fraction(Ap) = 0.085 Area averaged SCS curve number = 32.0 PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C UNIT HYDROGRAPH ANALYSIS PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.1 UNIT HYDROGRAPH ANALYSIS PRE-DEVELOPMENT CONDITIONS – 2 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 2 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 2 Antecedent Moisture Condition = 1 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 2 24.47 1 0.52 -------------------------------------------------------------------- Rainfall data for year 2 24.47 6 1.36 -------------------------------------------------------------------- Rainfall data for year 2 24.47 24 2.46 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 1) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 16.6 24.47 1.000 1.000 0.120 0.120 Area-averaged adjusted loss rate Fm (In/Hr) = 0.120 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC1) Yield Fr 2.94 0.120 32.0 16.6 12.30 0.000 21.53 0.880 98.0 98.0 0.20 0.907 Area-averaged catchment yield fraction, Y = 0.798 Area-averaged low loss fraction, Yb = 0.202 User entry of time of concentration = 0.145 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 24.47(Ac.) Catchment Lag time = 0.116 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 72.0212 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.120(In/Hr) Average low loss rate fraction (Yb) = 0.202 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.192(In) Computed peak 30-minute rainfall = 0.393(In) Specified peak 1-hour rainfall = 0.518(In) Computed peak 3-hour rainfall = 0.936(In) Specified peak 6-hour rainfall = 1.360(In) Specified peak 24-hour rainfall = 2.460(In) Rainfall depth area reduction factors: Using a total area of 24.47(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.191(In) 30-minute factor = 0.999 Adjusted rainfall = 0.392(In) 1-hour factor = 0.999 Adjusted rainfall = 0.517(In) 3-hour factor = 1.000 Adjusted rainfall = 0.936(In) 6-hour factor = 1.000 Adjusted rainfall = 1.360(In) 24-hour factor = 1.000 Adjusted rainfall = 2.460(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 295.93 (CFS)) 1 9.266 27.422 2 55.659 137.291 3 90.486 103.067 4 98.166 22.727 5 100.000 5.428 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.1915 0.1915 2 0.2527 0.0612 3 0.2972 0.0445 4 0.3334 0.0362 5 0.3645 0.0311 6 0.3921 0.0276 7 0.4171 0.0249 8 0.4399 0.0229 9 0.4612 0.0212 10 0.4810 0.0199 11 0.4997 0.0187 12 0.5174 0.0177 13 0.5402 0.0228 14 0.5623 0.0220 15 0.5836 0.0213 16 0.6043 0.0207 17 0.6244 0.0201 18 0.6440 0.0196 19 0.6630 0.0191 20 0.6816 0.0186 21 0.6998 0.0182 22 0.7176 0.0178 23 0.7350 0.0174 24 0.7521 0.0171 25 0.7689 0.0168 26 0.7853 0.0164 27 0.8015 0.0162 28 0.8173 0.0159 29 0.8330 0.0156 30 0.8483 0.0154 31 0.8635 0.0151 32 0.8784 0.0149 33 0.8931 0.0147 34 0.9076 0.0145 35 0.9219 0.0143 36 0.9361 0.0141 37 0.9500 0.0139 38 0.9637 0.0137 39 0.9773 0.0136 40 0.9907 0.0134 41 1.0040 0.0133 42 1.0171 0.0131 43 1.0301 0.0130 44 1.0429 0.0128 45 1.0557 0.0127 46 1.0682 0.0126 47 1.0807 0.0125 48 1.0930 0.0123 49 1.1052 0.0122 50 1.1173 0.0121 51 1.1293 0.0120 52 1.1412 0.0119 53 1.1530 0.0118 54 1.1646 0.0117 55 1.1762 0.0116 56 1.1877 0.0115 57 1.1991 0.0114 58 1.2103 0.0113 59 1.2215 0.0112 60 1.2327 0.0111 61 1.2437 0.0110 62 1.2546 0.0109 63 1.2655 0.0109 64 1.2763 0.0108 65 1.2870 0.0107 66 1.2976 0.0106 67 1.3082 0.0106 68 1.3187 0.0105 69 1.3291 0.0104 70 1.3394 0.0103 71 1.3497 0.0103 72 1.3599 0.0102 73 1.3679 0.0080 74 1.3759 0.0080 75 1.3838 0.0079 76 1.3917 0.0079 77 1.3995 0.0078 78 1.4072 0.0077 79 1.4149 0.0077 80 1.4226 0.0076 81 1.4301 0.0076 82 1.4377 0.0075 83 1.4451 0.0075 84 1.4525 0.0074 85 1.4599 0.0074 86 1.4672 0.0073 87 1.4745 0.0073 88 1.4817 0.0072 89 1.4889 0.0072 90 1.4960 0.0071 91 1.5031 0.0071 92 1.5102 0.0070 93 1.5172 0.0070 94 1.5241 0.0070 95 1.5310 0.0069 96 1.5379 0.0069 97 1.5447 0.0068 98 1.5515 0.0068 99 1.5583 0.0067 100 1.5650 0.0067 101 1.5716 0.0067 102 1.5783 0.0066 103 1.5849 0.0066 104 1.5914 0.0066 105 1.5980 0.0065 106 1.6044 0.0065 107 1.6109 0.0065 108 1.6173 0.0064 109 1.6237 0.0064 110 1.6301 0.0064 111 1.6364 0.0063 112 1.6427 0.0063 113 1.6489 0.0063 114 1.6551 0.0062 115 1.6613 0.0062 116 1.6675 0.0062 117 1.6736 0.0061 118 1.6797 0.0061 119 1.6858 0.0061 120 1.6918 0.0060 121 1.6979 0.0060 122 1.7038 0.0060 123 1.7098 0.0060 124 1.7157 0.0059 125 1.7216 0.0059 126 1.7275 0.0059 127 1.7334 0.0058 128 1.7392 0.0058 129 1.7450 0.0058 130 1.7507 0.0058 131 1.7565 0.0057 132 1.7622 0.0057 133 1.7679 0.0057 134 1.7736 0.0057 135 1.7792 0.0056 136 1.7848 0.0056 137 1.7904 0.0056 138 1.7960 0.0056 139 1.8016 0.0056 140 1.8071 0.0055 141 1.8126 0.0055 142 1.8181 0.0055 143 1.8236 0.0055 144 1.8290 0.0054 145 1.8344 0.0054 146 1.8398 0.0054 147 1.8452 0.0054 148 1.8506 0.0054 149 1.8559 0.0053 150 1.8612 0.0053 151 1.8665 0.0053 152 1.8718 0.0053 153 1.8770 0.0053 154 1.8823 0.0052 155 1.8875 0.0052 156 1.8927 0.0052 157 1.8979 0.0052 158 1.9030 0.0052 159 1.9082 0.0051 160 1.9133 0.0051 161 1.9184 0.0051 162 1.9235 0.0051 163 1.9285 0.0051 164 1.9336 0.0050 165 1.9386 0.0050 166 1.9436 0.0050 167 1.9486 0.0050 168 1.9536 0.0050 169 1.9586 0.0050 170 1.9635 0.0049 171 1.9684 0.0049 172 1.9734 0.0049 173 1.9783 0.0049 174 1.9831 0.0049 175 1.9880 0.0049 176 1.9929 0.0048 177 1.9977 0.0048 178 2.0025 0.0048 179 2.0073 0.0048 180 2.0121 0.0048 181 2.0169 0.0048 182 2.0216 0.0048 183 2.0264 0.0047 184 2.0311 0.0047 185 2.0358 0.0047 186 2.0405 0.0047 187 2.0452 0.0047 188 2.0499 0.0047 189 2.0545 0.0047 190 2.0592 0.0046 191 2.0638 0.0046 192 2.0684 0.0046 193 2.0730 0.0046 194 2.0776 0.0046 195 2.0821 0.0046 196 2.0867 0.0046 197 2.0913 0.0045 198 2.0958 0.0045 199 2.1003 0.0045 200 2.1048 0.0045 201 2.1093 0.0045 202 2.1138 0.0045 203 2.1182 0.0045 204 2.1227 0.0045 205 2.1271 0.0044 206 2.1316 0.0044 207 2.1360 0.0044 208 2.1404 0.0044 209 2.1448 0.0044 210 2.1492 0.0044 211 2.1535 0.0044 212 2.1579 0.0044 213 2.1623 0.0043 214 2.1666 0.0043 215 2.1709 0.0043 216 2.1752 0.0043 217 2.1795 0.0043 218 2.1838 0.0043 219 2.1881 0.0043 220 2.1924 0.0043 221 2.1966 0.0043 222 2.2009 0.0042 223 2.2051 0.0042 224 2.2093 0.0042 225 2.2135 0.0042 226 2.2177 0.0042 227 2.2219 0.0042 228 2.2261 0.0042 229 2.2303 0.0042 230 2.2344 0.0042 231 2.2386 0.0041 232 2.2427 0.0041 233 2.2468 0.0041 234 2.2510 0.0041 235 2.2551 0.0041 236 2.2592 0.0041 237 2.2632 0.0041 238 2.2673 0.0041 239 2.2714 0.0041 240 2.2754 0.0041 241 2.2795 0.0040 242 2.2835 0.0040 243 2.2876 0.0040 244 2.2916 0.0040 245 2.2956 0.0040 246 2.2996 0.0040 247 2.3036 0.0040 248 2.3076 0.0040 249 2.3115 0.0040 250 2.3155 0.0040 251 2.3195 0.0040 252 2.3234 0.0039 253 2.3274 0.0039 254 2.3313 0.0039 255 2.3352 0.0039 256 2.3391 0.0039 257 2.3430 0.0039 258 2.3469 0.0039 259 2.3508 0.0039 260 2.3547 0.0039 261 2.3585 0.0039 262 2.3624 0.0039 263 2.3662 0.0039 264 2.3701 0.0038 265 2.3739 0.0038 266 2.3778 0.0038 267 2.3816 0.0038 268 2.3854 0.0038 269 2.3892 0.0038 270 2.3930 0.0038 271 2.3968 0.0038 272 2.4005 0.0038 273 2.4043 0.0038 274 2.4081 0.0038 275 2.4118 0.0038 276 2.4156 0.0037 277 2.4193 0.0037 278 2.4230 0.0037 279 2.4268 0.0037 280 2.4305 0.0037 281 2.4342 0.0037 282 2.4379 0.0037 283 2.4416 0.0037 284 2.4453 0.0037 285 2.4489 0.0037 286 2.4526 0.0037 287 2.4563 0.0037 288 2.4599 0.0037 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0037 0.0007 0.0029 2 0.0037 0.0007 0.0029 3 0.0037 0.0007 0.0029 4 0.0037 0.0007 0.0029 5 0.0037 0.0007 0.0030 6 0.0037 0.0007 0.0030 7 0.0037 0.0008 0.0030 8 0.0037 0.0008 0.0030 9 0.0037 0.0008 0.0030 10 0.0038 0.0008 0.0030 11 0.0038 0.0008 0.0030 12 0.0038 0.0008 0.0030 13 0.0038 0.0008 0.0030 14 0.0038 0.0008 0.0030 15 0.0038 0.0008 0.0030 16 0.0038 0.0008 0.0031 17 0.0038 0.0008 0.0031 18 0.0039 0.0008 0.0031 19 0.0039 0.0008 0.0031 20 0.0039 0.0008 0.0031 21 0.0039 0.0008 0.0031 22 0.0039 0.0008 0.0031 23 0.0039 0.0008 0.0031 24 0.0039 0.0008 0.0031 25 0.0039 0.0008 0.0031 26 0.0040 0.0008 0.0032 27 0.0040 0.0008 0.0032 28 0.0040 0.0008 0.0032 29 0.0040 0.0008 0.0032 30 0.0040 0.0008 0.0032 31 0.0040 0.0008 0.0032 32 0.0040 0.0008 0.0032 33 0.0041 0.0008 0.0032 34 0.0041 0.0008 0.0032 35 0.0041 0.0008 0.0033 36 0.0041 0.0008 0.0033 37 0.0041 0.0008 0.0033 38 0.0041 0.0008 0.0033 39 0.0041 0.0008 0.0033 40 0.0042 0.0008 0.0033 41 0.0042 0.0008 0.0033 42 0.0042 0.0008 0.0033 43 0.0042 0.0009 0.0034 44 0.0042 0.0009 0.0034 45 0.0042 0.0009 0.0034 46 0.0043 0.0009 0.0034 47 0.0043 0.0009 0.0034 48 0.0043 0.0009 0.0034 49 0.0043 0.0009 0.0034 50 0.0043 0.0009 0.0035 51 0.0043 0.0009 0.0035 52 0.0044 0.0009 0.0035 53 0.0044 0.0009 0.0035 54 0.0044 0.0009 0.0035 55 0.0044 0.0009 0.0035 56 0.0044 0.0009 0.0035 57 0.0045 0.0009 0.0036 58 0.0045 0.0009 0.0036 59 0.0045 0.0009 0.0036 60 0.0045 0.0009 0.0036 61 0.0045 0.0009 0.0036 62 0.0045 0.0009 0.0036 63 0.0046 0.0009 0.0036 64 0.0046 0.0009 0.0037 65 0.0046 0.0009 0.0037 66 0.0046 0.0009 0.0037 67 0.0047 0.0009 0.0037 68 0.0047 0.0009 0.0037 69 0.0047 0.0009 0.0037 70 0.0047 0.0010 0.0038 71 0.0047 0.0010 0.0038 72 0.0048 0.0010 0.0038 73 0.0048 0.0010 0.0038 74 0.0048 0.0010 0.0038 75 0.0048 0.0010 0.0039 76 0.0048 0.0010 0.0039 77 0.0049 0.0010 0.0039 78 0.0049 0.0010 0.0039 79 0.0049 0.0010 0.0039 80 0.0049 0.0010 0.0039 81 0.0050 0.0010 0.0040 82 0.0050 0.0010 0.0040 83 0.0050 0.0010 0.0040 84 0.0050 0.0010 0.0040 85 0.0051 0.0010 0.0041 86 0.0051 0.0010 0.0041 87 0.0051 0.0010 0.0041 88 0.0052 0.0010 0.0041 89 0.0052 0.0010 0.0041 90 0.0052 0.0011 0.0042 91 0.0053 0.0011 0.0042 92 0.0053 0.0011 0.0042 93 0.0053 0.0011 0.0042 94 0.0053 0.0011 0.0043 95 0.0054 0.0011 0.0043 96 0.0054 0.0011 0.0043 97 0.0054 0.0011 0.0043 98 0.0055 0.0011 0.0044 99 0.0055 0.0011 0.0044 100 0.0055 0.0011 0.0044 101 0.0056 0.0011 0.0045 102 0.0056 0.0011 0.0045 103 0.0056 0.0011 0.0045 104 0.0057 0.0011 0.0045 105 0.0057 0.0012 0.0046 106 0.0057 0.0012 0.0046 107 0.0058 0.0012 0.0046 108 0.0058 0.0012 0.0046 109 0.0059 0.0012 0.0047 110 0.0059 0.0012 0.0047 111 0.0060 0.0012 0.0048 112 0.0060 0.0012 0.0048 113 0.0060 0.0012 0.0048 114 0.0061 0.0012 0.0048 115 0.0061 0.0012 0.0049 116 0.0062 0.0012 0.0049 117 0.0062 0.0013 0.0050 118 0.0063 0.0013 0.0050 119 0.0063 0.0013 0.0050 120 0.0064 0.0013 0.0051 121 0.0064 0.0013 0.0051 122 0.0065 0.0013 0.0052 123 0.0065 0.0013 0.0052 124 0.0066 0.0013 0.0052 125 0.0066 0.0013 0.0053 126 0.0067 0.0013 0.0053 127 0.0067 0.0014 0.0054 128 0.0068 0.0014 0.0054 129 0.0069 0.0014 0.0055 130 0.0069 0.0014 0.0055 131 0.0070 0.0014 0.0056 132 0.0070 0.0014 0.0056 133 0.0071 0.0014 0.0057 134 0.0072 0.0014 0.0057 135 0.0073 0.0015 0.0058 136 0.0073 0.0015 0.0058 137 0.0074 0.0015 0.0059 138 0.0075 0.0015 0.0060 139 0.0076 0.0015 0.0060 140 0.0076 0.0015 0.0061 141 0.0077 0.0016 0.0062 142 0.0078 0.0016 0.0062 143 0.0079 0.0016 0.0063 144 0.0080 0.0016 0.0064 145 0.0102 0.0021 0.0081 146 0.0103 0.0021 0.0082 147 0.0104 0.0021 0.0083 148 0.0105 0.0021 0.0084 149 0.0106 0.0021 0.0085 150 0.0107 0.0022 0.0085 151 0.0109 0.0022 0.0087 152 0.0109 0.0022 0.0087 153 0.0111 0.0022 0.0089 154 0.0112 0.0023 0.0089 155 0.0114 0.0023 0.0091 156 0.0115 0.0023 0.0092 157 0.0117 0.0024 0.0093 158 0.0118 0.0024 0.0094 159 0.0120 0.0024 0.0096 160 0.0121 0.0024 0.0097 161 0.0123 0.0025 0.0098 162 0.0125 0.0025 0.0099 163 0.0127 0.0026 0.0101 164 0.0128 0.0026 0.0102 165 0.0131 0.0026 0.0105 166 0.0133 0.0027 0.0106 167 0.0136 0.0027 0.0108 168 0.0137 0.0028 0.0110 169 0.0141 0.0029 0.0113 170 0.0143 0.0029 0.0114 171 0.0147 0.0030 0.0117 172 0.0149 0.0030 0.0119 173 0.0154 0.0031 0.0123 174 0.0156 0.0032 0.0125 175 0.0162 0.0033 0.0129 176 0.0164 0.0033 0.0131 177 0.0171 0.0034 0.0136 178 0.0174 0.0035 0.0139 179 0.0182 0.0037 0.0145 180 0.0186 0.0038 0.0149 181 0.0196 0.0039 0.0156 182 0.0201 0.0041 0.0160 183 0.0213 0.0043 0.0170 184 0.0220 0.0045 0.0176 185 0.0177 0.0036 0.0141 186 0.0187 0.0038 0.0149 187 0.0212 0.0043 0.0169 188 0.0229 0.0046 0.0183 189 0.0276 0.0056 0.0220 190 0.0311 0.0063 0.0248 191 0.0445 0.0090 0.0355 192 0.0612 0.0100 0.0512 193 0.1915 0.0100 0.1815 194 0.0362 0.0073 0.0289 195 0.0249 0.0050 0.0199 196 0.0199 0.0040 0.0158 197 0.0228 0.0046 0.0182 198 0.0207 0.0042 0.0165 199 0.0191 0.0038 0.0152 200 0.0178 0.0036 0.0142 201 0.0168 0.0034 0.0134 202 0.0159 0.0032 0.0127 203 0.0151 0.0031 0.0121 204 0.0145 0.0029 0.0116 205 0.0139 0.0028 0.0111 206 0.0134 0.0027 0.0107 207 0.0130 0.0026 0.0104 208 0.0126 0.0025 0.0100 209 0.0122 0.0025 0.0097 210 0.0119 0.0024 0.0095 211 0.0116 0.0023 0.0092 212 0.0113 0.0023 0.0090 213 0.0110 0.0022 0.0088 214 0.0108 0.0022 0.0086 215 0.0106 0.0021 0.0084 216 0.0103 0.0021 0.0083 217 0.0080 0.0016 0.0064 218 0.0079 0.0016 0.0063 219 0.0077 0.0016 0.0061 220 0.0075 0.0015 0.0060 221 0.0074 0.0015 0.0059 222 0.0072 0.0015 0.0058 223 0.0071 0.0014 0.0057 224 0.0070 0.0014 0.0055 225 0.0068 0.0014 0.0055 226 0.0067 0.0014 0.0054 227 0.0066 0.0013 0.0053 228 0.0065 0.0013 0.0052 229 0.0064 0.0013 0.0051 230 0.0063 0.0013 0.0050 231 0.0062 0.0013 0.0049 232 0.0061 0.0012 0.0049 233 0.0060 0.0012 0.0048 234 0.0059 0.0012 0.0047 235 0.0058 0.0012 0.0047 236 0.0058 0.0012 0.0046 237 0.0057 0.0012 0.0045 238 0.0056 0.0011 0.0045 239 0.0056 0.0011 0.0044 240 0.0055 0.0011 0.0044 241 0.0054 0.0011 0.0043 242 0.0054 0.0011 0.0043 243 0.0053 0.0011 0.0042 244 0.0052 0.0011 0.0042 245 0.0052 0.0010 0.0041 246 0.0051 0.0010 0.0041 247 0.0051 0.0010 0.0040 248 0.0050 0.0010 0.0040 249 0.0050 0.0010 0.0040 250 0.0049 0.0010 0.0039 251 0.0049 0.0010 0.0039 252 0.0048 0.0010 0.0038 253 0.0048 0.0010 0.0038 254 0.0047 0.0010 0.0038 255 0.0047 0.0009 0.0037 256 0.0046 0.0009 0.0037 257 0.0046 0.0009 0.0037 258 0.0046 0.0009 0.0036 259 0.0045 0.0009 0.0036 260 0.0045 0.0009 0.0036 261 0.0044 0.0009 0.0035 262 0.0044 0.0009 0.0035 263 0.0044 0.0009 0.0035 264 0.0043 0.0009 0.0035 265 0.0043 0.0009 0.0034 266 0.0043 0.0009 0.0034 267 0.0042 0.0009 0.0034 268 0.0042 0.0008 0.0034 269 0.0042 0.0008 0.0033 270 0.0041 0.0008 0.0033 271 0.0041 0.0008 0.0033 272 0.0041 0.0008 0.0033 273 0.0040 0.0008 0.0032 274 0.0040 0.0008 0.0032 275 0.0040 0.0008 0.0032 276 0.0040 0.0008 0.0032 277 0.0039 0.0008 0.0031 278 0.0039 0.0008 0.0031 279 0.0039 0.0008 0.0031 280 0.0039 0.0008 0.0031 281 0.0038 0.0008 0.0031 282 0.0038 0.0008 0.0030 283 0.0038 0.0008 0.0030 284 0.0038 0.0008 0.0030 285 0.0037 0.0008 0.0030 286 0.0037 0.0008 0.0030 287 0.0037 0.0007 0.0029 288 0.0037 0.0007 0.0029 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.47(In) Total effective rainfall = 1.99(In) Peak flow rate in flood hydrograph = 31.93(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 10.0 20.0 30.0 40.0 ----------------------------------------------------------------------- 0+ 5 0.0006 0.08 Q | | | | 0+10 0.0039 0.48 Q | | | | 0+15 0.0093 0.78 Q | | | | 0+20 0.0151 0.85 Q | | | | 0+25 0.0211 0.87 Q | | | | 0+30 0.0271 0.87 Q | | | | 0+35 0.0331 0.87 Q | | | | 0+40 0.0392 0.88 Q | | | | 0+45 0.0452 0.88 Q | | | | 0+50 0.0513 0.88 Q | | | | 0+55 0.0574 0.89 Q | | | | 1+ 0 0.0635 0.89 Q | | | | 1+ 5 0.0697 0.89 Q | | | | 1+10 0.0758 0.89 Q | | | | 1+15 0.0820 0.90 Q | | | | 1+20 0.0882 0.90 Q | | | | 1+25 0.0944 0.90 Q | | | | 1+30 0.1007 0.91 Q | | | | 1+35 0.1069 0.91 QV | | | | 1+40 0.1132 0.91 QV | | | | 1+45 0.1195 0.91 QV | | | | 1+50 0.1258 0.92 QV | | | | 1+55 0.1322 0.92 QV | | | | 2+ 0 0.1385 0.92 QV | | | | 2+ 5 0.1449 0.93 QV | | | | 2+10 0.1513 0.93 QV | | | | 2+15 0.1577 0.93 QV | | | | 2+20 0.1642 0.94 QV | | | | 2+25 0.1707 0.94 QV | | | | 2+30 0.1772 0.94 QV | | | | 2+35 0.1837 0.95 QV | | | | 2+40 0.1902 0.95 QV | | | | 2+45 0.1968 0.95 QV | | | | 2+50 0.2034 0.96 Q V | | | | 2+55 0.2100 0.96 Q V | | | | 3+ 0 0.2166 0.96 Q V | | | | 3+ 5 0.2233 0.97 Q V | | | | 3+10 0.2300 0.97 Q V | | | | 3+15 0.2367 0.97 Q V | | | | 3+20 0.2434 0.98 Q V | | | | 3+25 0.2501 0.98 Q V | | | | 3+30 0.2569 0.98 Q V | | | | 3+35 0.2637 0.99 Q V | | | | 3+40 0.2706 0.99 Q V | | | | 3+45 0.2774 1.00 Q V | | | | 3+50 0.2843 1.00 |QV | | | | 3+55 0.2912 1.00 |QV | | | | 4+ 0 0.2982 1.01 |QV | | | | 4+ 5 0.3051 1.01 |Q V | | | | 4+10 0.3121 1.02 |Q V | | | | 4+15 0.3192 1.02 |Q V | | | | 4+20 0.3262 1.02 |Q V | | | | 4+25 0.3333 1.03 |Q V | | | | 4+30 0.3404 1.03 |Q V | | | | 4+35 0.3475 1.04 |Q V | | | | 4+40 0.3547 1.04 |Q V | | | | 4+45 0.3619 1.04 |Q V | | | | 4+50 0.3691 1.05 |Q V | | | | 4+55 0.3764 1.05 |Q V | | | | 5+ 0 0.3837 1.06 |Q V | | | | 5+ 5 0.3910 1.06 |Q V | | | | 5+10 0.3983 1.07 |Q V | | | | 5+15 0.4057 1.07 |Q V | | | | 5+20 0.4131 1.08 |Q V | | | | 5+25 0.4206 1.08 |Q V | | | | 5+30 0.4281 1.09 |Q V | | | | 5+35 0.4356 1.09 |Q V | | | | 5+40 0.4431 1.10 |Q V | | | | 5+45 0.4507 1.10 |Q V | | | | 5+50 0.4583 1.11 |Q V | | | | 5+55 0.4660 1.11 |Q V | | | | 6+ 0 0.4737 1.12 |Q V | | | | 6+ 5 0.4814 1.12 |Q V | | | | 6+10 0.4892 1.13 |Q V | | | | 6+15 0.4970 1.13 |Q V | | | | 6+20 0.5048 1.14 |Q V | | | | 6+25 0.5127 1.14 |Q V | | | | 6+30 0.5206 1.15 |Q V | | | | 6+35 0.5286 1.15 |Q V | | | | 6+40 0.5366 1.16 |Q V | | | | 6+45 0.5446 1.17 |Q V | | | | 6+50 0.5527 1.17 |Q V | | | | 6+55 0.5608 1.18 |Q V | | | | 7+ 0 0.5689 1.18 |Q V | | | | 7+ 5 0.5771 1.19 |Q V | | | | 7+10 0.5854 1.20 |Q V | | | | 7+15 0.5937 1.20 |Q V | | | | 7+20 0.6020 1.21 |Q V | | | | 7+25 0.6104 1.22 |Q V | | | | 7+30 0.6188 1.22 |Q V | | | | 7+35 0.6273 1.23 |Q V | | | | 7+40 0.6358 1.24 |Q V | | | | 7+45 0.6444 1.24 |Q V | | | | 7+50 0.6530 1.25 |Q V | | | | 7+55 0.6616 1.26 |Q V | | | | 8+ 0 0.6704 1.27 |Q V | | | | 8+ 5 0.6791 1.27 |Q V | | | | 8+10 0.6879 1.28 |Q V | | | | 8+15 0.6968 1.29 |Q V | | | | 8+20 0.7057 1.30 |Q V | | | | 8+25 0.7147 1.30 |Q V | | | | 8+30 0.7238 1.31 |Q V | | | | 8+35 0.7328 1.32 |Q V | | | | 8+40 0.7420 1.33 |Q V | | | | 8+45 0.7512 1.34 |Q V | | | | 8+50 0.7605 1.35 |Q V | | | | 8+55 0.7698 1.35 |Q V | | | | 9+ 0 0.7792 1.36 |Q V | | | | 9+ 5 0.7886 1.37 |Q V | | | | 9+10 0.7982 1.38 |Q V | | | | 9+15 0.8077 1.39 |Q V | | | | 9+20 0.8174 1.40 |Q V | | | | 9+25 0.8271 1.41 |Q V | | | | 9+30 0.8369 1.42 |Q V | | | | 9+35 0.8467 1.43 |Q V | | | | 9+40 0.8567 1.44 |Q V | | | | 9+45 0.8667 1.45 |Q V | | | | 9+50 0.8767 1.46 |Q V | | | | 9+55 0.8869 1.47 |Q V | | | | 10+ 0 0.8971 1.49 |Q V | | | | 10+ 5 0.9074 1.50 |Q V | | | | 10+10 0.9178 1.51 |Q V| | | | 10+15 0.9283 1.52 |Q V| | | | 10+20 0.9389 1.53 |Q V| | | | 10+25 0.9495 1.55 |Q V| | | | 10+30 0.9602 1.56 |Q V| | | | 10+35 0.9711 1.57 |Q V| | | | 10+40 0.9820 1.59 |Q V| | | | 10+45 0.9930 1.60 |Q V| | | | 10+50 1.0041 1.61 |Q V| | | | 10+55 1.0153 1.63 |Q V| | | | 11+ 0 1.0266 1.64 |Q V | | | 11+ 5 1.0381 1.66 |Q V | | | 11+10 1.0496 1.67 |Q V | | | 11+15 1.0612 1.69 |Q V | | | 11+20 1.0730 1.71 |Q V | | | 11+25 1.0848 1.72 |Q V | | | 11+30 1.0968 1.74 |Q V | | | 11+35 1.1090 1.76 |Q V | | | 11+40 1.1212 1.78 |Q |V | | | 11+45 1.1336 1.80 |Q |V | | | 11+50 1.1461 1.82 |Q |V | | | 11+55 1.1587 1.84 |Q |V | | | 12+ 0 1.1715 1.86 |Q |V | | | 12+ 5 1.1848 1.92 |Q |V | | | 12+10 1.1998 2.18 | Q |V | | | 12+15 1.2161 2.37 | Q |V | | | 12+20 1.2329 2.44 | Q | V | | | 12+25 1.2499 2.47 | Q | V | | | 12+30 1.2671 2.49 | Q | V | | | 12+35 1.2844 2.52 | Q | V | | | 12+40 1.3020 2.55 | Q | V | | | 12+45 1.3197 2.58 | Q | V | | | 12+50 1.3377 2.61 | Q | V | | | 12+55 1.3558 2.64 | Q | V | | | 13+ 0 1.3742 2.67 | Q | V | | | 13+ 5 1.3928 2.70 | Q | V | | | 13+10 1.4116 2.74 | Q | V | | | 13+15 1.4307 2.77 | Q | V | | | 13+20 1.4500 2.81 | Q | V | | | 13+25 1.4696 2.85 | Q | V | | | 13+30 1.4895 2.89 | Q | V | | | 13+35 1.5097 2.93 | Q | V | | | 13+40 1.5302 2.97 | Q | V | | | 13+45 1.5509 3.02 | Q | V | | | 13+50 1.5721 3.07 | Q | V | | | 13+55 1.5936 3.12 | Q | V | | | 14+ 0 1.6154 3.17 | Q | V | | | 14+ 5 1.6377 3.23 | Q | V | | | 14+10 1.6604 3.30 | Q | V | | | 14+15 1.6835 3.36 | Q | V | | | 14+20 1.7071 3.43 | Q | V | | | 14+25 1.7312 3.50 | Q | V | | | 14+30 1.7559 3.58 | Q | V | | | 14+35 1.7812 3.66 | Q | V | | | 14+40 1.8071 3.76 | Q | V | | | 14+45 1.8336 3.85 | Q | V | | | 14+50 1.8609 3.97 | Q | V | | | 14+55 1.8890 4.08 | Q | V | | | 15+ 0 1.9180 4.21 | Q | V | | | 15+ 5 1.9480 4.35 | Q | V| | | 15+10 1.9791 4.52 | Q | V| | | 15+15 2.0115 4.69 | Q | V| | | 15+20 2.0453 4.91 | Q | V | | 15+25 2.0797 5.01 | Q | V | | 15+30 2.1117 4.64 | Q | V | | 15+35 2.1424 4.46 | Q | |V | | 15+40 2.1753 4.78 | Q | |V | | 15+45 2.2116 5.27 | Q | |V | | 15+50 2.2533 6.05 | Q | | V | | 15+55 2.3026 7.16 | Q | | V | | 16+ 0 2.3676 9.44 | Q| | V | | 16+ 5 2.4802 16.35 | | Q | V | | 16+10 2.7001 31.93 | | | V |Q | 16+15 2.8693 24.58 | | | Q V | | 16+20 2.9420 10.55 | Q | V | | 16+25 2.9859 6.37 | Q | | V| | 16+30 3.0217 5.20 | Q | | V| | 16+35 3.0563 5.03 | Q | | V | 16+40 3.0885 4.68 | Q | | V | 16+45 3.1186 4.36 | Q | | V | 16+50 3.1467 4.08 | Q | | V | 16+55 3.1732 3.86 | Q | | |V | 17+ 0 3.1985 3.66 | Q | | |V | 17+ 5 3.2226 3.50 | Q | | |V | 17+10 3.2457 3.36 | Q | | |V | 17+15 3.2679 3.23 | Q | | | V | 17+20 3.2894 3.12 | Q | | | V | 17+25 3.3101 3.02 | Q | | | V | 17+30 3.3303 2.93 | Q | | | V | 17+35 3.3499 2.84 | Q | | | V | 17+40 3.3689 2.77 | Q | | | V | 17+45 3.3875 2.70 | Q | | | V | 17+50 3.4057 2.63 | Q | | | V | 17+55 3.4234 2.57 | Q | | | V | 18+ 0 3.4408 2.52 | Q | | | V | 18+ 5 3.4574 2.42 | Q | | | V | 18+10 3.4722 2.14 | Q | | | V | 18+15 3.4854 1.92 |Q | | | V | 18+20 3.4981 1.84 |Q | | | V | 18+25 3.5105 1.80 |Q | | | V | 18+30 3.5226 1.76 |Q | | | V | 18+35 3.5345 1.72 |Q | | | V | 18+40 3.5461 1.69 |Q | | | V | 18+45 3.5575 1.66 |Q | | | V | 18+50 3.5687 1.63 |Q | | | V | 18+55 3.5797 1.60 |Q | | | V | 19+ 0 3.5905 1.57 |Q | | | V | 19+ 5 3.6012 1.54 |Q | | | V | 19+10 3.6116 1.52 |Q | | | V | 19+15 3.6219 1.50 |Q | | | V | 19+20 3.6321 1.47 |Q | | | V | 19+25 3.6421 1.45 |Q | | | V | 19+30 3.6519 1.43 |Q | | | V | 19+35 3.6616 1.41 |Q | | | V | 19+40 3.6712 1.39 |Q | | | V | 19+45 3.6807 1.37 |Q | | | V | 19+50 3.6900 1.35 |Q | | | V | 19+55 3.6992 1.34 |Q | | | V | 20+ 0 3.7083 1.32 |Q | | | V | 20+ 5 3.7172 1.30 |Q | | | V | 20+10 3.7261 1.29 |Q | | | V | 20+15 3.7349 1.27 |Q | | | V | 20+20 3.7435 1.26 |Q | | | V | 20+25 3.7521 1.24 |Q | | | V | 20+30 3.7606 1.23 |Q | | | V | 20+35 3.7689 1.22 |Q | | | V | 20+40 3.7772 1.20 |Q | | | V | 20+45 3.7854 1.19 |Q | | | V | 20+50 3.7935 1.18 |Q | | | V | 20+55 3.8016 1.17 |Q | | | V | 21+ 0 3.8095 1.15 |Q | | | V | 21+ 5 3.8174 1.14 |Q | | | V | 21+10 3.8252 1.13 |Q | | | V | 21+15 3.8329 1.12 |Q | | | V | 21+20 3.8406 1.11 |Q | | | V | 21+25 3.8481 1.10 |Q | | | V | 21+30 3.8556 1.09 |Q | | | V | 21+35 3.8631 1.08 |Q | | | V | 21+40 3.8705 1.07 |Q | | | V | 21+45 3.8778 1.06 |Q | | | V | 21+50 3.8850 1.05 |Q | | | V | 21+55 3.8922 1.04 |Q | | | V | 22+ 0 3.8994 1.04 |Q | | | V | 22+ 5 3.9065 1.03 |Q | | | V | 22+10 3.9135 1.02 |Q | | | V | 22+15 3.9204 1.01 |Q | | | V | 22+20 3.9273 1.00 |Q | | | V | 22+25 3.9342 1.00 Q | | | V | 22+30 3.9410 0.99 Q | | | V | 22+35 3.9478 0.98 Q | | | V | 22+40 3.9545 0.97 Q | | | V | 22+45 3.9611 0.97 Q | | | V | 22+50 3.9677 0.96 Q | | | V| 22+55 3.9743 0.95 Q | | | V| 23+ 0 3.9808 0.95 Q | | | V| 23+ 5 3.9873 0.94 Q | | | V| 23+10 3.9937 0.93 Q | | | V| 23+15 4.0001 0.93 Q | | | V| 23+20 4.0064 0.92 Q | | | V| 23+25 4.0127 0.91 Q | | | V| 23+30 4.0190 0.91 Q | | | V| 23+35 4.0252 0.90 Q | | | V| 23+40 4.0314 0.90 Q | | | V| 23+45 4.0375 0.89 Q | | | V| 23+50 4.0436 0.89 Q | | | V| 23+55 4.0497 0.88 Q | | | V| 24+ 0 4.0557 0.87 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 2 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 2 Antecedent Moisture Condition = 1 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 2 12.94 1 0.52 -------------------------------------------------------------------- Rainfall data for year 2 12.94 6 1.36 -------------------------------------------------------------------- Rainfall data for year 2 12.94 24 2.46 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 1) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 16.6 12.94 1.000 1.000 0.090 0.090 Area-averaged adjusted loss rate Fm (In/Hr) = 0.090 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC1) Yield Fr 1.16 0.090 32.0 16.6 12.30 0.000 11.78 0.910 98.0 98.0 0.20 0.907 Area-averaged catchment yield fraction, Y = 0.825 Area-averaged low loss fraction, Yb = 0.175 User entry of time of concentration = 0.138 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 12.94(Ac.) Catchment Lag time = 0.111 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 75.3830 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.090(In/Hr) Average low loss rate fraction (Yb) = 0.175 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.192(In) Computed peak 30-minute rainfall = 0.393(In) Specified peak 1-hour rainfall = 0.518(In) Computed peak 3-hour rainfall = 0.936(In) Specified peak 6-hour rainfall = 1.360(In) Specified peak 24-hour rainfall = 2.460(In) Rainfall depth area reduction factors: Using a total area of 12.94(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.192(In) 30-minute factor = 0.999 Adjusted rainfall = 0.392(In) 1-hour factor = 0.999 Adjusted rainfall = 0.518(In) 3-hour factor = 1.000 Adjusted rainfall = 0.936(In) 6-hour factor = 1.000 Adjusted rainfall = 1.360(In) 24-hour factor = 1.000 Adjusted rainfall = 2.460(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 156.49 (CFS)) 1 10.105 15.813 2 59.170 76.784 3 92.172 51.646 4 98.501 9.904 5 100.000 2.347 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.1916 0.1916 2 0.2528 0.0612 3 0.2973 0.0445 4 0.3336 0.0363 5 0.3647 0.0311 6 0.3923 0.0276 7 0.4173 0.0250 8 0.4402 0.0229 9 0.4614 0.0212 10 0.4813 0.0199 11 0.5000 0.0187 12 0.5177 0.0177 13 0.5405 0.0228 14 0.5626 0.0220 15 0.5839 0.0213 16 0.6046 0.0207 17 0.6246 0.0201 18 0.6442 0.0196 19 0.6632 0.0191 20 0.6818 0.0186 21 0.7000 0.0182 22 0.7178 0.0178 23 0.7352 0.0174 24 0.7523 0.0171 25 0.7690 0.0167 26 0.7855 0.0164 27 0.8016 0.0161 28 0.8175 0.0159 29 0.8331 0.0156 30 0.8485 0.0154 31 0.8636 0.0151 32 0.8785 0.0149 33 0.8932 0.0147 34 0.9077 0.0145 35 0.9220 0.0143 36 0.9361 0.0141 37 0.9500 0.0139 38 0.9638 0.0137 39 0.9774 0.0136 40 0.9908 0.0134 41 1.0041 0.0133 42 1.0172 0.0131 43 1.0302 0.0130 44 1.0430 0.0128 45 1.0557 0.0127 46 1.0683 0.0126 47 1.0807 0.0125 48 1.0931 0.0123 49 1.1053 0.0122 50 1.1174 0.0121 51 1.1294 0.0120 52 1.1412 0.0119 53 1.1530 0.0118 54 1.1647 0.0117 55 1.1763 0.0116 56 1.1877 0.0115 57 1.1991 0.0114 58 1.2104 0.0113 59 1.2216 0.0112 60 1.2327 0.0111 61 1.2437 0.0110 62 1.2547 0.0109 63 1.2655 0.0109 64 1.2763 0.0108 65 1.2870 0.0107 66 1.2977 0.0106 67 1.3082 0.0106 68 1.3187 0.0105 69 1.3291 0.0104 70 1.3395 0.0103 71 1.3497 0.0103 72 1.3599 0.0102 73 1.3680 0.0080 74 1.3760 0.0080 75 1.3839 0.0079 76 1.3917 0.0079 77 1.3995 0.0078 78 1.4073 0.0077 79 1.4150 0.0077 80 1.4226 0.0076 81 1.4302 0.0076 82 1.4377 0.0075 83 1.4452 0.0075 84 1.4526 0.0074 85 1.4600 0.0074 86 1.4673 0.0073 87 1.4746 0.0073 88 1.4818 0.0072 89 1.4889 0.0072 90 1.4961 0.0071 91 1.5032 0.0071 92 1.5102 0.0070 93 1.5172 0.0070 94 1.5242 0.0070 95 1.5311 0.0069 96 1.5379 0.0069 97 1.5448 0.0068 98 1.5516 0.0068 99 1.5583 0.0067 100 1.5650 0.0067 101 1.5717 0.0067 102 1.5783 0.0066 103 1.5849 0.0066 104 1.5915 0.0066 105 1.5980 0.0065 106 1.6045 0.0065 107 1.6109 0.0065 108 1.6174 0.0064 109 1.6238 0.0064 110 1.6301 0.0064 111 1.6364 0.0063 112 1.6427 0.0063 113 1.6490 0.0063 114 1.6552 0.0062 115 1.6614 0.0062 116 1.6675 0.0062 117 1.6737 0.0061 118 1.6798 0.0061 119 1.6858 0.0061 120 1.6919 0.0060 121 1.6979 0.0060 122 1.7039 0.0060 123 1.7098 0.0060 124 1.7158 0.0059 125 1.7217 0.0059 126 1.7276 0.0059 127 1.7334 0.0058 128 1.7392 0.0058 129 1.7450 0.0058 130 1.7508 0.0058 131 1.7565 0.0057 132 1.7623 0.0057 133 1.7679 0.0057 134 1.7736 0.0057 135 1.7793 0.0056 136 1.7849 0.0056 137 1.7905 0.0056 138 1.7961 0.0056 139 1.8016 0.0056 140 1.8071 0.0055 141 1.8127 0.0055 142 1.8181 0.0055 143 1.8236 0.0055 144 1.8290 0.0054 145 1.8345 0.0054 146 1.8399 0.0054 147 1.8452 0.0054 148 1.8506 0.0054 149 1.8559 0.0053 150 1.8612 0.0053 151 1.8665 0.0053 152 1.8718 0.0053 153 1.8771 0.0053 154 1.8823 0.0052 155 1.8875 0.0052 156 1.8927 0.0052 157 1.8979 0.0052 158 1.9031 0.0052 159 1.9082 0.0051 160 1.9133 0.0051 161 1.9184 0.0051 162 1.9235 0.0051 163 1.9286 0.0051 164 1.9336 0.0050 165 1.9387 0.0050 166 1.9437 0.0050 167 1.9487 0.0050 168 1.9537 0.0050 169 1.9586 0.0050 170 1.9636 0.0049 171 1.9685 0.0049 172 1.9734 0.0049 173 1.9783 0.0049 174 1.9832 0.0049 175 1.9880 0.0049 176 1.9929 0.0048 177 1.9977 0.0048 178 2.0025 0.0048 179 2.0074 0.0048 180 2.0121 0.0048 181 2.0169 0.0048 182 2.0217 0.0048 183 2.0264 0.0047 184 2.0311 0.0047 185 2.0358 0.0047 186 2.0405 0.0047 187 2.0452 0.0047 188 2.0499 0.0047 189 2.0546 0.0047 190 2.0592 0.0046 191 2.0638 0.0046 192 2.0684 0.0046 193 2.0730 0.0046 194 2.0776 0.0046 195 2.0822 0.0046 196 2.0867 0.0046 197 2.0913 0.0045 198 2.0958 0.0045 199 2.1003 0.0045 200 2.1049 0.0045 201 2.1093 0.0045 202 2.1138 0.0045 203 2.1183 0.0045 204 2.1227 0.0045 205 2.1272 0.0044 206 2.1316 0.0044 207 2.1360 0.0044 208 2.1404 0.0044 209 2.1448 0.0044 210 2.1492 0.0044 211 2.1536 0.0044 212 2.1579 0.0044 213 2.1623 0.0043 214 2.1666 0.0043 215 2.1709 0.0043 216 2.1753 0.0043 217 2.1796 0.0043 218 2.1838 0.0043 219 2.1881 0.0043 220 2.1924 0.0043 221 2.1966 0.0043 222 2.2009 0.0042 223 2.2051 0.0042 224 2.2093 0.0042 225 2.2136 0.0042 226 2.2178 0.0042 227 2.2220 0.0042 228 2.2261 0.0042 229 2.2303 0.0042 230 2.2345 0.0042 231 2.2386 0.0041 232 2.2427 0.0041 233 2.2469 0.0041 234 2.2510 0.0041 235 2.2551 0.0041 236 2.2592 0.0041 237 2.2633 0.0041 238 2.2674 0.0041 239 2.2714 0.0041 240 2.2755 0.0041 241 2.2795 0.0040 242 2.2836 0.0040 243 2.2876 0.0040 244 2.2916 0.0040 245 2.2956 0.0040 246 2.2996 0.0040 247 2.3036 0.0040 248 2.3076 0.0040 249 2.3116 0.0040 250 2.3156 0.0040 251 2.3195 0.0040 252 2.3235 0.0039 253 2.3274 0.0039 254 2.3313 0.0039 255 2.3352 0.0039 256 2.3392 0.0039 257 2.3431 0.0039 258 2.3469 0.0039 259 2.3508 0.0039 260 2.3547 0.0039 261 2.3586 0.0039 262 2.3624 0.0039 263 2.3663 0.0039 264 2.3701 0.0038 265 2.3740 0.0038 266 2.3778 0.0038 267 2.3816 0.0038 268 2.3854 0.0038 269 2.3892 0.0038 270 2.3930 0.0038 271 2.3968 0.0038 272 2.4006 0.0038 273 2.4043 0.0038 274 2.4081 0.0038 275 2.4119 0.0038 276 2.4156 0.0037 277 2.4193 0.0037 278 2.4231 0.0037 279 2.4268 0.0037 280 2.4305 0.0037 281 2.4342 0.0037 282 2.4379 0.0037 283 2.4416 0.0037 284 2.4453 0.0037 285 2.4490 0.0037 286 2.4526 0.0037 287 2.4563 0.0037 288 2.4600 0.0037 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0037 0.0006 0.0030 2 0.0037 0.0006 0.0030 3 0.0037 0.0006 0.0030 4 0.0037 0.0006 0.0030 5 0.0037 0.0006 0.0031 6 0.0037 0.0006 0.0031 7 0.0037 0.0007 0.0031 8 0.0037 0.0007 0.0031 9 0.0037 0.0007 0.0031 10 0.0038 0.0007 0.0031 11 0.0038 0.0007 0.0031 12 0.0038 0.0007 0.0031 13 0.0038 0.0007 0.0031 14 0.0038 0.0007 0.0031 15 0.0038 0.0007 0.0032 16 0.0038 0.0007 0.0032 17 0.0038 0.0007 0.0032 18 0.0039 0.0007 0.0032 19 0.0039 0.0007 0.0032 20 0.0039 0.0007 0.0032 21 0.0039 0.0007 0.0032 22 0.0039 0.0007 0.0032 23 0.0039 0.0007 0.0032 24 0.0039 0.0007 0.0032 25 0.0039 0.0007 0.0033 26 0.0040 0.0007 0.0033 27 0.0040 0.0007 0.0033 28 0.0040 0.0007 0.0033 29 0.0040 0.0007 0.0033 30 0.0040 0.0007 0.0033 31 0.0040 0.0007 0.0033 32 0.0040 0.0007 0.0033 33 0.0041 0.0007 0.0033 34 0.0041 0.0007 0.0034 35 0.0041 0.0007 0.0034 36 0.0041 0.0007 0.0034 37 0.0041 0.0007 0.0034 38 0.0041 0.0007 0.0034 39 0.0041 0.0007 0.0034 40 0.0042 0.0007 0.0034 41 0.0042 0.0007 0.0034 42 0.0042 0.0007 0.0035 43 0.0042 0.0007 0.0035 44 0.0042 0.0007 0.0035 45 0.0042 0.0007 0.0035 46 0.0043 0.0007 0.0035 47 0.0043 0.0007 0.0035 48 0.0043 0.0007 0.0035 49 0.0043 0.0008 0.0036 50 0.0043 0.0008 0.0036 51 0.0043 0.0008 0.0036 52 0.0044 0.0008 0.0036 53 0.0044 0.0008 0.0036 54 0.0044 0.0008 0.0036 55 0.0044 0.0008 0.0036 56 0.0044 0.0008 0.0037 57 0.0045 0.0008 0.0037 58 0.0045 0.0008 0.0037 59 0.0045 0.0008 0.0037 60 0.0045 0.0008 0.0037 61 0.0045 0.0008 0.0037 62 0.0045 0.0008 0.0038 63 0.0046 0.0008 0.0038 64 0.0046 0.0008 0.0038 65 0.0046 0.0008 0.0038 66 0.0046 0.0008 0.0038 67 0.0047 0.0008 0.0038 68 0.0047 0.0008 0.0039 69 0.0047 0.0008 0.0039 70 0.0047 0.0008 0.0039 71 0.0047 0.0008 0.0039 72 0.0048 0.0008 0.0039 73 0.0048 0.0008 0.0040 74 0.0048 0.0008 0.0040 75 0.0048 0.0008 0.0040 76 0.0048 0.0008 0.0040 77 0.0049 0.0009 0.0040 78 0.0049 0.0009 0.0040 79 0.0049 0.0009 0.0041 80 0.0049 0.0009 0.0041 81 0.0050 0.0009 0.0041 82 0.0050 0.0009 0.0041 83 0.0050 0.0009 0.0042 84 0.0050 0.0009 0.0042 85 0.0051 0.0009 0.0042 86 0.0051 0.0009 0.0042 87 0.0051 0.0009 0.0042 88 0.0052 0.0009 0.0043 89 0.0052 0.0009 0.0043 90 0.0052 0.0009 0.0043 91 0.0053 0.0009 0.0043 92 0.0053 0.0009 0.0044 93 0.0053 0.0009 0.0044 94 0.0053 0.0009 0.0044 95 0.0054 0.0009 0.0044 96 0.0054 0.0009 0.0045 97 0.0054 0.0010 0.0045 98 0.0055 0.0010 0.0045 99 0.0055 0.0010 0.0045 100 0.0055 0.0010 0.0046 101 0.0056 0.0010 0.0046 102 0.0056 0.0010 0.0046 103 0.0056 0.0010 0.0047 104 0.0057 0.0010 0.0047 105 0.0057 0.0010 0.0047 106 0.0057 0.0010 0.0047 107 0.0058 0.0010 0.0048 108 0.0058 0.0010 0.0048 109 0.0059 0.0010 0.0048 110 0.0059 0.0010 0.0049 111 0.0060 0.0010 0.0049 112 0.0060 0.0010 0.0049 113 0.0060 0.0011 0.0050 114 0.0061 0.0011 0.0050 115 0.0061 0.0011 0.0051 116 0.0062 0.0011 0.0051 117 0.0062 0.0011 0.0051 118 0.0063 0.0011 0.0052 119 0.0063 0.0011 0.0052 120 0.0064 0.0011 0.0052 121 0.0064 0.0011 0.0053 122 0.0065 0.0011 0.0053 123 0.0065 0.0011 0.0054 124 0.0066 0.0011 0.0054 125 0.0066 0.0012 0.0055 126 0.0067 0.0012 0.0055 127 0.0067 0.0012 0.0056 128 0.0068 0.0012 0.0056 129 0.0069 0.0012 0.0057 130 0.0069 0.0012 0.0057 131 0.0070 0.0012 0.0058 132 0.0070 0.0012 0.0058 133 0.0071 0.0012 0.0059 134 0.0072 0.0013 0.0059 135 0.0073 0.0013 0.0060 136 0.0073 0.0013 0.0060 137 0.0074 0.0013 0.0061 138 0.0075 0.0013 0.0062 139 0.0076 0.0013 0.0063 140 0.0076 0.0013 0.0063 141 0.0077 0.0014 0.0064 142 0.0078 0.0014 0.0064 143 0.0079 0.0014 0.0065 144 0.0080 0.0014 0.0066 145 0.0102 0.0018 0.0084 146 0.0103 0.0018 0.0085 147 0.0104 0.0018 0.0086 148 0.0105 0.0018 0.0087 149 0.0106 0.0019 0.0088 150 0.0107 0.0019 0.0088 151 0.0109 0.0019 0.0090 152 0.0109 0.0019 0.0090 153 0.0111 0.0019 0.0092 154 0.0112 0.0020 0.0092 155 0.0114 0.0020 0.0094 156 0.0115 0.0020 0.0095 157 0.0117 0.0020 0.0096 158 0.0118 0.0021 0.0097 159 0.0120 0.0021 0.0099 160 0.0121 0.0021 0.0100 161 0.0123 0.0022 0.0102 162 0.0125 0.0022 0.0103 163 0.0127 0.0022 0.0105 164 0.0128 0.0022 0.0106 165 0.0131 0.0023 0.0108 166 0.0133 0.0023 0.0110 167 0.0136 0.0024 0.0112 168 0.0137 0.0024 0.0113 169 0.0141 0.0025 0.0116 170 0.0143 0.0025 0.0118 171 0.0147 0.0026 0.0121 172 0.0149 0.0026 0.0123 173 0.0154 0.0027 0.0127 174 0.0156 0.0027 0.0129 175 0.0161 0.0028 0.0133 176 0.0164 0.0029 0.0136 177 0.0171 0.0030 0.0141 178 0.0174 0.0030 0.0144 179 0.0182 0.0032 0.0150 180 0.0186 0.0032 0.0154 181 0.0196 0.0034 0.0161 182 0.0201 0.0035 0.0166 183 0.0213 0.0037 0.0176 184 0.0220 0.0039 0.0182 185 0.0177 0.0031 0.0146 186 0.0187 0.0033 0.0154 187 0.0212 0.0037 0.0175 188 0.0229 0.0040 0.0189 189 0.0276 0.0048 0.0228 190 0.0311 0.0054 0.0257 191 0.0445 0.0075 0.0370 192 0.0612 0.0075 0.0537 193 0.1916 0.0075 0.1841 194 0.0363 0.0063 0.0299 195 0.0250 0.0044 0.0206 196 0.0199 0.0035 0.0164 197 0.0228 0.0040 0.0188 198 0.0207 0.0036 0.0171 199 0.0191 0.0033 0.0157 200 0.0178 0.0031 0.0147 201 0.0167 0.0029 0.0138 202 0.0159 0.0028 0.0131 203 0.0151 0.0026 0.0125 204 0.0145 0.0025 0.0120 205 0.0139 0.0024 0.0115 206 0.0134 0.0023 0.0111 207 0.0130 0.0023 0.0107 208 0.0126 0.0022 0.0104 209 0.0122 0.0021 0.0101 210 0.0119 0.0021 0.0098 211 0.0116 0.0020 0.0095 212 0.0113 0.0020 0.0093 213 0.0110 0.0019 0.0091 214 0.0108 0.0019 0.0089 215 0.0106 0.0018 0.0087 216 0.0103 0.0018 0.0085 217 0.0080 0.0014 0.0066 218 0.0079 0.0014 0.0065 219 0.0077 0.0013 0.0063 220 0.0075 0.0013 0.0062 221 0.0074 0.0013 0.0061 222 0.0072 0.0013 0.0060 223 0.0071 0.0012 0.0058 224 0.0070 0.0012 0.0057 225 0.0068 0.0012 0.0056 226 0.0067 0.0012 0.0055 227 0.0066 0.0012 0.0054 228 0.0065 0.0011 0.0054 229 0.0064 0.0011 0.0053 230 0.0063 0.0011 0.0052 231 0.0062 0.0011 0.0051 232 0.0061 0.0011 0.0050 233 0.0060 0.0011 0.0050 234 0.0059 0.0010 0.0049 235 0.0058 0.0010 0.0048 236 0.0058 0.0010 0.0048 237 0.0057 0.0010 0.0047 238 0.0056 0.0010 0.0046 239 0.0056 0.0010 0.0046 240 0.0055 0.0010 0.0045 241 0.0054 0.0009 0.0045 242 0.0054 0.0009 0.0044 243 0.0053 0.0009 0.0044 244 0.0052 0.0009 0.0043 245 0.0052 0.0009 0.0043 246 0.0051 0.0009 0.0042 247 0.0051 0.0009 0.0042 248 0.0050 0.0009 0.0041 249 0.0050 0.0009 0.0041 250 0.0049 0.0009 0.0041 251 0.0049 0.0009 0.0040 252 0.0048 0.0008 0.0040 253 0.0048 0.0008 0.0039 254 0.0047 0.0008 0.0039 255 0.0047 0.0008 0.0039 256 0.0046 0.0008 0.0038 257 0.0046 0.0008 0.0038 258 0.0046 0.0008 0.0038 259 0.0045 0.0008 0.0037 260 0.0045 0.0008 0.0037 261 0.0044 0.0008 0.0037 262 0.0044 0.0008 0.0036 263 0.0044 0.0008 0.0036 264 0.0043 0.0008 0.0036 265 0.0043 0.0008 0.0035 266 0.0043 0.0007 0.0035 267 0.0042 0.0007 0.0035 268 0.0042 0.0007 0.0035 269 0.0042 0.0007 0.0034 270 0.0041 0.0007 0.0034 271 0.0041 0.0007 0.0034 272 0.0041 0.0007 0.0034 273 0.0040 0.0007 0.0033 274 0.0040 0.0007 0.0033 275 0.0040 0.0007 0.0033 276 0.0040 0.0007 0.0033 277 0.0039 0.0007 0.0032 278 0.0039 0.0007 0.0032 279 0.0039 0.0007 0.0032 280 0.0039 0.0007 0.0032 281 0.0038 0.0007 0.0032 282 0.0038 0.0007 0.0031 283 0.0038 0.0007 0.0031 284 0.0038 0.0007 0.0031 285 0.0037 0.0007 0.0031 286 0.0037 0.0006 0.0031 287 0.0037 0.0006 0.0030 288 0.0037 0.0006 0.0030 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.40(In) Total effective rainfall = 2.06(In) Peak flow rate in flood hydrograph = 17.81(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 5.0 10.0 15.0 20.0 ----------------------------------------------------------------------- 0+ 5 0.0003 0.05 Q | | | | 0+10 0.0023 0.28 Q | | | | 0+15 0.0053 0.44 Q | | | | 0+20 0.0085 0.47 Q | | | | 0+25 0.0117 0.48 Q | | | | 0+30 0.0150 0.48 Q | | | | 0+35 0.0183 0.48 Q | | | | 0+40 0.0216 0.48 Q | | | | 0+45 0.0249 0.48 Q | | | | 0+50 0.0283 0.48 Q | | | | 0+55 0.0316 0.48 Q | | | | 1+ 0 0.0350 0.49 Q | | | | 1+ 5 0.0383 0.49 Q | | | | 1+10 0.0417 0.49 Q | | | | 1+15 0.0451 0.49 Q | | | | 1+20 0.0485 0.49 Q | | | | 1+25 0.0519 0.49 Q | | | | 1+30 0.0553 0.50 Q | | | | 1+35 0.0587 0.50 QV | | | | 1+40 0.0621 0.50 QV | | | | 1+45 0.0656 0.50 |Q | | | | 1+50 0.0690 0.50 |Q | | | | 1+55 0.0725 0.50 |Q | | | | 2+ 0 0.0760 0.51 |Q | | | | 2+ 5 0.0795 0.51 |Q | | | | 2+10 0.0830 0.51 |Q | | | | 2+15 0.0865 0.51 |Q | | | | 2+20 0.0900 0.51 |Q | | | | 2+25 0.0935 0.51 |Q | | | | 2+30 0.0971 0.52 |Q | | | | 2+35 0.1007 0.52 |Q | | | | 2+40 0.1042 0.52 |Q | | | | 2+45 0.1078 0.52 |Q | | | | 2+50 0.1114 0.52 |QV | | | | 2+55 0.1151 0.52 |QV | | | | 3+ 0 0.1187 0.53 |QV | | | | 3+ 5 0.1223 0.53 |QV | | | | 3+10 0.1260 0.53 |QV | | | | 3+15 0.1296 0.53 |QV | | | | 3+20 0.1333 0.53 |QV | | | | 3+25 0.1370 0.54 |QV | | | | 3+30 0.1407 0.54 |QV | | | | 3+35 0.1445 0.54 |QV | | | | 3+40 0.1482 0.54 |QV | | | | 3+45 0.1519 0.54 |QV | | | | 3+50 0.1557 0.55 |QV | | | | 3+55 0.1595 0.55 |QV | | | | 4+ 0 0.1633 0.55 |QV | | | | 4+ 5 0.1671 0.55 |Q V | | | | 4+10 0.1709 0.56 |Q V | | | | 4+15 0.1748 0.56 |Q V | | | | 4+20 0.1786 0.56 |Q V | | | | 4+25 0.1825 0.56 |Q V | | | | 4+30 0.1864 0.56 |Q V | | | | 4+35 0.1903 0.57 |Q V | | | | 4+40 0.1942 0.57 |Q V | | | | 4+45 0.1981 0.57 |Q V | | | | 4+50 0.2021 0.57 |Q V | | | | 4+55 0.2061 0.58 |Q V | | | | 5+ 0 0.2101 0.58 |Q V | | | | 5+ 5 0.2141 0.58 |Q V | | | | 5+10 0.2181 0.58 |Q V | | | | 5+15 0.2221 0.59 |Q V | | | | 5+20 0.2262 0.59 |Q V | | | | 5+25 0.2303 0.59 |Q V | | | | 5+30 0.2343 0.59 |Q V | | | | 5+35 0.2385 0.60 |Q V | | | | 5+40 0.2426 0.60 |Q V | | | | 5+45 0.2467 0.60 |Q V | | | | 5+50 0.2509 0.61 |Q V | | | | 5+55 0.2551 0.61 |Q V | | | | 6+ 0 0.2593 0.61 |Q V | | | | 6+ 5 0.2635 0.61 |Q V | | | | 6+10 0.2678 0.62 |Q V | | | | 6+15 0.2720 0.62 |Q V | | | | 6+20 0.2763 0.62 |Q V | | | | 6+25 0.2806 0.63 |Q V | | | | 6+30 0.2850 0.63 |Q V | | | | 6+35 0.2893 0.63 |Q V | | | | 6+40 0.2937 0.63 |Q V | | | | 6+45 0.2981 0.64 |Q V | | | | 6+50 0.3025 0.64 |Q V | | | | 6+55 0.3069 0.64 |Q V | | | | 7+ 0 0.3114 0.65 |Q V | | | | 7+ 5 0.3159 0.65 |Q V | | | | 7+10 0.3204 0.65 |Q V | | | | 7+15 0.3249 0.66 |Q V | | | | 7+20 0.3295 0.66 |Q V | | | | 7+25 0.3341 0.67 |Q V | | | | 7+30 0.3387 0.67 |Q V | | | | 7+35 0.3433 0.67 |Q V | | | | 7+40 0.3480 0.68 |Q V | | | | 7+45 0.3527 0.68 |Q V | | | | 7+50 0.3574 0.68 |Q V | | | | 7+55 0.3621 0.69 |Q V | | | | 8+ 0 0.3669 0.69 |Q V | | | | 8+ 5 0.3717 0.70 |Q V | | | | 8+10 0.3765 0.70 |Q V | | | | 8+15 0.3813 0.70 |Q V | | | | 8+20 0.3862 0.71 |Q V | | | | 8+25 0.3911 0.71 |Q V | | | | 8+30 0.3961 0.72 |Q V | | | | 8+35 0.4011 0.72 |Q V | | | | 8+40 0.4061 0.73 |Q V | | | | 8+45 0.4111 0.73 |Q V | | | | 8+50 0.4162 0.74 |Q V | | | | 8+55 0.4213 0.74 |Q V | | | | 9+ 0 0.4264 0.75 |Q V | | | | 9+ 5 0.4316 0.75 |Q V | | | | 9+10 0.4368 0.76 |Q V | | | | 9+15 0.4420 0.76 |Q V | | | | 9+20 0.4473 0.77 |Q V | | | | 9+25 0.4526 0.77 |Q V | | | | 9+30 0.4580 0.78 |Q V | | | | 9+35 0.4634 0.78 |Q V | | | | 9+40 0.4688 0.79 |Q V | | | | 9+45 0.4743 0.79 |Q V | | | | 9+50 0.4798 0.80 |Q V | | | | 9+55 0.4853 0.81 |Q V | | | | 10+ 0 0.4909 0.81 |Q V | | | | 10+ 5 0.4966 0.82 |Q V | | | | 10+10 0.5023 0.83 |Q V| | | | 10+15 0.5080 0.83 |Q V| | | | 10+20 0.5138 0.84 |Q V| | | | 10+25 0.5196 0.85 |Q V| | | | 10+30 0.5255 0.85 |Q V| | | | 10+35 0.5314 0.86 |Q V| | | | 10+40 0.5374 0.87 |Q V| | | | 10+45 0.5434 0.87 |Q V| | | | 10+50 0.5495 0.88 |Q V| | | | 10+55 0.5556 0.89 |Q V | | | 11+ 0 0.5618 0.90 |Q V | | | 11+ 5 0.5680 0.91 |Q V | | | 11+10 0.5743 0.92 |Q V | | | 11+15 0.5807 0.92 |Q V | | | 11+20 0.5871 0.93 |Q V | | | 11+25 0.5936 0.94 |Q V | | | 11+30 0.6002 0.95 |Q V | | | 11+35 0.6068 0.96 |Q V | | | 11+40 0.6135 0.97 |Q |V | | | 11+45 0.6203 0.98 |Q |V | | | 11+50 0.6271 0.99 |Q |V | | | 11+55 0.6341 1.00 | Q |V | | | 12+ 0 0.6411 1.02 | Q |V | | | 12+ 5 0.6483 1.06 | Q |V | | | 12+10 0.6566 1.20 | Q |V | | | 12+15 0.6656 1.30 | Q |V | | | 12+20 0.6748 1.33 | Q | V | | | 12+25 0.6841 1.35 | Q | V | | | 12+30 0.6935 1.37 | Q | V | | | 12+35 0.7030 1.38 | Q | V | | | 12+40 0.7126 1.39 | Q | V | | | 12+45 0.7223 1.41 | Q | V | | | 12+50 0.7321 1.43 | Q | V | | | 12+55 0.7420 1.44 | Q | V | | | 13+ 0 0.7521 1.46 | Q | V | | | 13+ 5 0.7623 1.48 | Q | V | | | 13+10 0.7726 1.50 | Q | V | | | 13+15 0.7830 1.52 | Q | V | | | 13+20 0.7936 1.54 | Q | V | | | 13+25 0.8043 1.56 | Q | V | | | 13+30 0.8152 1.58 | Q | V | | | 13+35 0.8262 1.60 | Q | V | | | 13+40 0.8375 1.63 | Q | V | | | 13+45 0.8488 1.65 | Q | V | | | 13+50 0.8604 1.68 | Q | V | | | 13+55 0.8722 1.71 | Q | V | | | 14+ 0 0.8841 1.74 | Q | V | | | 14+ 5 0.8963 1.77 | Q | V | | | 14+10 0.9087 1.80 | Q | V | | | 14+15 0.9214 1.84 | Q | V | | | 14+20 0.9343 1.88 | Q | V | | | 14+25 0.9475 1.92 | Q | V | | | 14+30 0.9610 1.96 | Q | V | | | 14+35 0.9748 2.01 | Q | V | | | 14+40 0.9890 2.06 | Q | V | | | 14+45 1.0035 2.11 | Q | V | | | 14+50 1.0185 2.17 | Q | V | | | 14+55 1.0339 2.23 | Q | V | | | 15+ 0 1.0498 2.31 | Q | V | | | 15+ 5 1.0662 2.38 | Q | V| | | 15+10 1.0832 2.48 | Q | V| | | 15+15 1.1009 2.57 | Q | V| | | 15+20 1.1195 2.69 | Q | V | | 15+25 1.1383 2.74 | Q | V | | 15+30 1.1557 2.52 | Q | V | | 15+35 1.1725 2.44 | Q | |V | | 15+40 1.1906 2.63 | Q | |V | | 15+45 1.2106 2.90 | Q | |V | | 15+50 1.2336 3.34 | Q | | V | | 15+55 1.2609 3.96 | Q | | V | | 16+ 0 1.2973 5.29 | Q | V | | 16+ 5 1.3610 9.26 | | Q | V | | 16+10 1.4837 17.81 | | | V | Q | 16+15 1.5715 12.75 | | | Q V | | 16+20 1.6083 5.34 | Q | V | | 16+25 1.6313 3.35 | Q | | V| | 16+30 1.6509 2.84 | Q | | V| | 16+35 1.6698 2.74 | Q | | V | 16+40 1.6873 2.55 | Q | | V | 16+45 1.7036 2.37 | Q | | V | 16+50 1.7189 2.22 | Q | | V | 16+55 1.7334 2.10 | Q | | |V | 17+ 0 1.7471 2.00 | Q | | |V | 17+ 5 1.7603 1.91 | Q | | |V | 17+10 1.7729 1.83 | Q | | |V | 17+15 1.7850 1.76 | Q | | | V | 17+20 1.7967 1.70 | Q | | | V | 17+25 1.8080 1.65 | Q | | | V | 17+30 1.8190 1.60 | Q | | | V | 17+35 1.8297 1.55 | Q | | | V | 17+40 1.8401 1.51 | Q | | | V | 17+45 1.8503 1.47 | Q | | | V | 17+50 1.8602 1.44 | Q | | | V | 17+55 1.8699 1.41 | Q | | | V | 18+ 0 1.8793 1.38 | Q | | | V | 18+ 5 1.8884 1.32 | Q | | | V | 18+10 1.8964 1.16 | Q | | | V | 18+15 1.9036 1.05 | Q | | | V | 18+20 1.9106 1.01 | Q | | | V | 18+25 1.9173 0.98 |Q | | | V | 18+30 1.9239 0.96 |Q | | | V | 18+35 1.9304 0.94 |Q | | | V | 18+40 1.9367 0.92 |Q | | | V | 18+45 1.9430 0.91 |Q | | | V | 18+50 1.9491 0.89 |Q | | | V | 18+55 1.9551 0.87 |Q | | | V | 19+ 0 1.9610 0.86 |Q | | | V | 19+ 5 1.9668 0.84 |Q | | | V | 19+10 1.9725 0.83 |Q | | | V | 19+15 1.9782 0.82 |Q | | | V | 19+20 1.9837 0.80 |Q | | | V | 19+25 1.9892 0.79 |Q | | | V | 19+30 1.9946 0.78 |Q | | | V | 19+35 1.9999 0.77 |Q | | | V | 19+40 2.0051 0.76 |Q | | | V | 19+45 2.0103 0.75 |Q | | | V | 19+50 2.0153 0.74 |Q | | | V | 19+55 2.0204 0.73 |Q | | | V | 20+ 0 2.0253 0.72 |Q | | | V | 20+ 5 2.0302 0.71 |Q | | | V | 20+10 2.0351 0.70 |Q | | | V | 20+15 2.0399 0.70 |Q | | | V | 20+20 2.0446 0.69 |Q | | | V | 20+25 2.0493 0.68 |Q | | | V | 20+30 2.0539 0.67 |Q | | | V | 20+35 2.0585 0.66 |Q | | | V | 20+40 2.0630 0.66 |Q | | | V | 20+45 2.0675 0.65 |Q | | | V | 20+50 2.0719 0.64 |Q | | | V | 20+55 2.0763 0.64 |Q | | | V | 21+ 0 2.0807 0.63 |Q | | | V | 21+ 5 2.0850 0.62 |Q | | | V | 21+10 2.0892 0.62 |Q | | | V | 21+15 2.0934 0.61 |Q | | | V | 21+20 2.0976 0.61 |Q | | | V | 21+25 2.1018 0.60 |Q | | | V | 21+30 2.1059 0.60 |Q | | | V | 21+35 2.1099 0.59 |Q | | | V | 21+40 2.1140 0.59 |Q | | | V | 21+45 2.1180 0.58 |Q | | | V | 21+50 2.1219 0.58 |Q | | | V | 21+55 2.1259 0.57 |Q | | | V | 22+ 0 2.1298 0.57 |Q | | | V | 22+ 5 2.1336 0.56 |Q | | | V | 22+10 2.1375 0.56 |Q | | | V | 22+15 2.1413 0.55 |Q | | | V | 22+20 2.1451 0.55 |Q | | | V | 22+25 2.1488 0.54 |Q | | | V | 22+30 2.1525 0.54 |Q | | | V | 22+35 2.1562 0.54 |Q | | | V | 22+40 2.1599 0.53 |Q | | | V | 22+45 2.1635 0.53 |Q | | | V | 22+50 2.1671 0.52 |Q | | | V| 22+55 2.1707 0.52 |Q | | | V| 23+ 0 2.1743 0.52 |Q | | | V| 23+ 5 2.1778 0.51 |Q | | | V| 23+10 2.1813 0.51 |Q | | | V| 23+15 2.1848 0.51 |Q | | | V| 23+20 2.1883 0.50 |Q | | | V| 23+25 2.1917 0.50 Q | | | V| 23+30 2.1951 0.50 Q | | | V| 23+35 2.1985 0.49 Q | | | V| 23+40 2.2019 0.49 Q | | | V| 23+45 2.2053 0.49 Q | | | V| 23+50 2.2086 0.48 Q | | | V| 23+55 2.2119 0.48 Q | | | V| 24+ 0 2.2152 0.48 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.2 UNIT HYDROGRAPH ANALYSIS PRE-DEVELOPMENT CONDITIONS – 10 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 10 YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 10 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 5 29.19 1 0.68 -------------------------------------------------------------------- Rainfall data for year 5 29.19 6 1.76 -------------------------------------------------------------------- Rainfall data for year 5 29.19 24 3.22 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 29.19 1.000 0.978 0.600 0.587 Area-averaged adjusted loss rate Fm (In/Hr) = 0.587 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 10-year pre-condition flow rates shall be calculated using 5-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 17.51 0.600 32.0 32.0 16.10 0.000 11.68 0.400 98.0 98.0 0.20 0.928 Area-averaged catchment yield fraction, Y = 0.371 Area-averaged low loss fraction, Yb = 0.629 User entry of time of concentration = 0.237 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 29.19(Ac.) Catchment Lag time = 0.190 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 43.9707 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.587(In/Hr) Average low loss rate fraction (Yb) = 0.629 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.253(In) Computed peak 30-minute rainfall = 0.518(In) Specified peak 1-hour rainfall = 0.684(In) Computed peak 3-hour rainfall = 1.221(In) Specified peak 6-hour rainfall = 1.760(In) Specified peak 24-hour rainfall = 3.220(In) Rainfall depth area reduction factors: Using a total area of 29.19(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.253(In) 30-minute factor = 0.999 Adjusted rainfall = 0.518(In) 1-hour factor = 0.999 Adjusted rainfall = 0.683(In) 3-hour factor = 1.000 Adjusted rainfall = 1.221(In) 6-hour factor = 1.000 Adjusted rainfall = 1.760(In) 24-hour factor = 1.000 Adjusted rainfall = 3.220(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 353.02 (CFS)) 1 3.593 12.685 2 23.409 69.954 3 58.071 122.361 4 83.637 90.253 5 94.177 37.206 6 97.961 13.360 7 98.945 3.472 8 100.000 1.736 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.2528 0.2528 2 0.3336 0.0808 3 0.3923 0.0587 4 0.4402 0.0478 5 0.4813 0.0411 6 0.5177 0.0364 7 0.5506 0.0329 8 0.5808 0.0302 9 0.6088 0.0280 10 0.6350 0.0262 11 0.6597 0.0247 12 0.6831 0.0234 13 0.7126 0.0295 14 0.7410 0.0285 15 0.7686 0.0275 16 0.7952 0.0267 17 0.8211 0.0259 18 0.8463 0.0252 19 0.8709 0.0245 20 0.8948 0.0239 21 0.9182 0.0234 22 0.9410 0.0229 23 0.9634 0.0224 24 0.9853 0.0219 25 1.0068 0.0215 26 1.0279 0.0211 27 1.0486 0.0207 28 1.0690 0.0204 29 1.0890 0.0200 30 1.1087 0.0197 31 1.1280 0.0194 32 1.1471 0.0191 33 1.1659 0.0188 34 1.1845 0.0185 35 1.2028 0.0183 36 1.2208 0.0180 37 1.2386 0.0178 38 1.2561 0.0176 39 1.2735 0.0173 40 1.2906 0.0171 41 1.3075 0.0169 42 1.3243 0.0167 43 1.3408 0.0165 44 1.3572 0.0164 45 1.3733 0.0162 46 1.3894 0.0160 47 1.4052 0.0159 48 1.4209 0.0157 49 1.4365 0.0155 50 1.4519 0.0154 51 1.4671 0.0152 52 1.4822 0.0151 53 1.4972 0.0150 54 1.5120 0.0148 55 1.5267 0.0147 56 1.5413 0.0146 57 1.5558 0.0145 58 1.5701 0.0143 59 1.5843 0.0142 60 1.5984 0.0141 61 1.6124 0.0140 62 1.6263 0.0139 63 1.6401 0.0138 64 1.6538 0.0137 65 1.6674 0.0136 66 1.6809 0.0135 67 1.6943 0.0134 68 1.7076 0.0133 69 1.7208 0.0132 70 1.7339 0.0131 71 1.7469 0.0130 72 1.7598 0.0129 73 1.7704 0.0106 74 1.7810 0.0105 75 1.7914 0.0104 76 1.8018 0.0104 77 1.8121 0.0103 78 1.8223 0.0102 79 1.8325 0.0101 80 1.8425 0.0101 81 1.8525 0.0100 82 1.8625 0.0099 83 1.8723 0.0099 84 1.8821 0.0098 85 1.8919 0.0097 86 1.9015 0.0097 87 1.9111 0.0096 88 1.9207 0.0095 89 1.9301 0.0095 90 1.9396 0.0094 91 1.9489 0.0094 92 1.9582 0.0093 93 1.9675 0.0092 94 1.9767 0.0092 95 1.9858 0.0091 96 1.9949 0.0091 97 2.0039 0.0090 98 2.0129 0.0090 99 2.0218 0.0089 100 2.0307 0.0089 101 2.0395 0.0088 102 2.0483 0.0088 103 2.0570 0.0087 104 2.0657 0.0087 105 2.0743 0.0086 106 2.0829 0.0086 107 2.0915 0.0085 108 2.1000 0.0085 109 2.1084 0.0085 110 2.1168 0.0084 111 2.1252 0.0084 112 2.1335 0.0083 113 2.1418 0.0083 114 2.1500 0.0082 115 2.1582 0.0082 116 2.1664 0.0082 117 2.1745 0.0081 118 2.1826 0.0081 119 2.1906 0.0080 120 2.1986 0.0080 121 2.2066 0.0080 122 2.2145 0.0079 123 2.2224 0.0079 124 2.2303 0.0079 125 2.2381 0.0078 126 2.2459 0.0078 127 2.2536 0.0078 128 2.2613 0.0077 129 2.2690 0.0077 130 2.2767 0.0076 131 2.2843 0.0076 132 2.2919 0.0076 133 2.2994 0.0076 134 2.3069 0.0075 135 2.3144 0.0075 136 2.3219 0.0075 137 2.3293 0.0074 138 2.3367 0.0074 139 2.3441 0.0074 140 2.3514 0.0073 141 2.3587 0.0073 142 2.3660 0.0073 143 2.3732 0.0072 144 2.3804 0.0072 145 2.3876 0.0072 146 2.3948 0.0072 147 2.4019 0.0071 148 2.4090 0.0071 149 2.4161 0.0071 150 2.4232 0.0071 151 2.4302 0.0070 152 2.4372 0.0070 153 2.4442 0.0070 154 2.4511 0.0069 155 2.4580 0.0069 156 2.4649 0.0069 157 2.4718 0.0069 158 2.4787 0.0068 159 2.4855 0.0068 160 2.4923 0.0068 161 2.4991 0.0068 162 2.5058 0.0068 163 2.5125 0.0067 164 2.5192 0.0067 165 2.5259 0.0067 166 2.5326 0.0067 167 2.5392 0.0066 168 2.5458 0.0066 169 2.5524 0.0066 170 2.5590 0.0066 171 2.5656 0.0065 172 2.5721 0.0065 173 2.5786 0.0065 174 2.5851 0.0065 175 2.5915 0.0065 176 2.5980 0.0064 177 2.6044 0.0064 178 2.6108 0.0064 179 2.6172 0.0064 180 2.6235 0.0064 181 2.6299 0.0063 182 2.6362 0.0063 183 2.6425 0.0063 184 2.6488 0.0063 185 2.6551 0.0063 186 2.6613 0.0062 187 2.6675 0.0062 188 2.6737 0.0062 189 2.6799 0.0062 190 2.6861 0.0062 191 2.6922 0.0062 192 2.6984 0.0061 193 2.7045 0.0061 194 2.7106 0.0061 195 2.7167 0.0061 196 2.7227 0.0061 197 2.7288 0.0060 198 2.7348 0.0060 199 2.7408 0.0060 200 2.7468 0.0060 201 2.7528 0.0060 202 2.7587 0.0060 203 2.7647 0.0059 204 2.7706 0.0059 205 2.7765 0.0059 206 2.7824 0.0059 207 2.7883 0.0059 208 2.7942 0.0059 209 2.8000 0.0058 210 2.8058 0.0058 211 2.8117 0.0058 212 2.8175 0.0058 213 2.8232 0.0058 214 2.8290 0.0058 215 2.8348 0.0058 216 2.8405 0.0057 217 2.8462 0.0057 218 2.8519 0.0057 219 2.8576 0.0057 220 2.8633 0.0057 221 2.8690 0.0057 222 2.8746 0.0057 223 2.8802 0.0056 224 2.8859 0.0056 225 2.8915 0.0056 226 2.8971 0.0056 227 2.9027 0.0056 228 2.9082 0.0056 229 2.9138 0.0056 230 2.9193 0.0055 231 2.9248 0.0055 232 2.9303 0.0055 233 2.9358 0.0055 234 2.9413 0.0055 235 2.9468 0.0055 236 2.9523 0.0055 237 2.9577 0.0054 238 2.9631 0.0054 239 2.9685 0.0054 240 2.9740 0.0054 241 2.9793 0.0054 242 2.9847 0.0054 243 2.9901 0.0054 244 2.9955 0.0054 245 3.0008 0.0053 246 3.0061 0.0053 247 3.0114 0.0053 248 3.0168 0.0053 249 3.0220 0.0053 250 3.0273 0.0053 251 3.0326 0.0053 252 3.0379 0.0053 253 3.0431 0.0052 254 3.0483 0.0052 255 3.0536 0.0052 256 3.0588 0.0052 257 3.0640 0.0052 258 3.0692 0.0052 259 3.0744 0.0052 260 3.0795 0.0052 261 3.0847 0.0052 262 3.0898 0.0051 263 3.0950 0.0051 264 3.1001 0.0051 265 3.1052 0.0051 266 3.1103 0.0051 267 3.1154 0.0051 268 3.1205 0.0051 269 3.1255 0.0051 270 3.1306 0.0051 271 3.1356 0.0050 272 3.1407 0.0050 273 3.1457 0.0050 274 3.1507 0.0050 275 3.1557 0.0050 276 3.1607 0.0050 277 3.1657 0.0050 278 3.1707 0.0050 279 3.1756 0.0050 280 3.1806 0.0050 281 3.1855 0.0049 282 3.1905 0.0049 283 3.1954 0.0049 284 3.2003 0.0049 285 3.2052 0.0049 286 3.2101 0.0049 287 3.2150 0.0049 288 3.2199 0.0049 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0049 0.0031 0.0018 2 0.0049 0.0031 0.0018 3 0.0049 0.0031 0.0018 4 0.0049 0.0031 0.0018 5 0.0049 0.0031 0.0018 6 0.0049 0.0031 0.0018 7 0.0050 0.0031 0.0018 8 0.0050 0.0031 0.0018 9 0.0050 0.0031 0.0019 10 0.0050 0.0031 0.0019 11 0.0050 0.0032 0.0019 12 0.0050 0.0032 0.0019 13 0.0051 0.0032 0.0019 14 0.0051 0.0032 0.0019 15 0.0051 0.0032 0.0019 16 0.0051 0.0032 0.0019 17 0.0051 0.0032 0.0019 18 0.0051 0.0032 0.0019 19 0.0052 0.0032 0.0019 20 0.0052 0.0032 0.0019 21 0.0052 0.0033 0.0019 22 0.0052 0.0033 0.0019 23 0.0052 0.0033 0.0019 24 0.0052 0.0033 0.0019 25 0.0053 0.0033 0.0020 26 0.0053 0.0033 0.0020 27 0.0053 0.0033 0.0020 28 0.0053 0.0033 0.0020 29 0.0053 0.0034 0.0020 30 0.0053 0.0034 0.0020 31 0.0054 0.0034 0.0020 32 0.0054 0.0034 0.0020 33 0.0054 0.0034 0.0020 34 0.0054 0.0034 0.0020 35 0.0054 0.0034 0.0020 36 0.0055 0.0034 0.0020 37 0.0055 0.0034 0.0020 38 0.0055 0.0035 0.0020 39 0.0055 0.0035 0.0021 40 0.0055 0.0035 0.0021 41 0.0056 0.0035 0.0021 42 0.0056 0.0035 0.0021 43 0.0056 0.0035 0.0021 44 0.0056 0.0035 0.0021 45 0.0057 0.0036 0.0021 46 0.0057 0.0036 0.0021 47 0.0057 0.0036 0.0021 48 0.0057 0.0036 0.0021 49 0.0057 0.0036 0.0021 50 0.0058 0.0036 0.0021 51 0.0058 0.0036 0.0021 52 0.0058 0.0036 0.0022 53 0.0058 0.0037 0.0022 54 0.0058 0.0037 0.0022 55 0.0059 0.0037 0.0022 56 0.0059 0.0037 0.0022 57 0.0059 0.0037 0.0022 58 0.0059 0.0037 0.0022 59 0.0060 0.0038 0.0022 60 0.0060 0.0038 0.0022 61 0.0060 0.0038 0.0022 62 0.0060 0.0038 0.0022 63 0.0061 0.0038 0.0023 64 0.0061 0.0038 0.0023 65 0.0061 0.0039 0.0023 66 0.0062 0.0039 0.0023 67 0.0062 0.0039 0.0023 68 0.0062 0.0039 0.0023 69 0.0062 0.0039 0.0023 70 0.0063 0.0039 0.0023 71 0.0063 0.0040 0.0023 72 0.0063 0.0040 0.0023 73 0.0064 0.0040 0.0024 74 0.0064 0.0040 0.0024 75 0.0064 0.0040 0.0024 76 0.0064 0.0041 0.0024 77 0.0065 0.0041 0.0024 78 0.0065 0.0041 0.0024 79 0.0065 0.0041 0.0024 80 0.0066 0.0041 0.0024 81 0.0066 0.0042 0.0025 82 0.0066 0.0042 0.0025 83 0.0067 0.0042 0.0025 84 0.0067 0.0042 0.0025 85 0.0068 0.0042 0.0025 86 0.0068 0.0043 0.0025 87 0.0068 0.0043 0.0025 88 0.0068 0.0043 0.0025 89 0.0069 0.0043 0.0026 90 0.0069 0.0044 0.0026 91 0.0070 0.0044 0.0026 92 0.0070 0.0044 0.0026 93 0.0071 0.0044 0.0026 94 0.0071 0.0045 0.0026 95 0.0071 0.0045 0.0026 96 0.0072 0.0045 0.0027 97 0.0072 0.0045 0.0027 98 0.0072 0.0046 0.0027 99 0.0073 0.0046 0.0027 100 0.0073 0.0046 0.0027 101 0.0074 0.0047 0.0027 102 0.0074 0.0047 0.0028 103 0.0075 0.0047 0.0028 104 0.0075 0.0047 0.0028 105 0.0076 0.0048 0.0028 106 0.0076 0.0048 0.0028 107 0.0077 0.0048 0.0029 108 0.0077 0.0049 0.0029 109 0.0078 0.0049 0.0029 110 0.0078 0.0049 0.0029 111 0.0079 0.0050 0.0029 112 0.0079 0.0050 0.0029 113 0.0080 0.0050 0.0030 114 0.0080 0.0051 0.0030 115 0.0081 0.0051 0.0030 116 0.0082 0.0051 0.0030 117 0.0082 0.0052 0.0031 118 0.0083 0.0052 0.0031 119 0.0084 0.0053 0.0031 120 0.0084 0.0053 0.0031 121 0.0085 0.0053 0.0032 122 0.0085 0.0054 0.0032 123 0.0086 0.0054 0.0032 124 0.0087 0.0055 0.0032 125 0.0088 0.0055 0.0033 126 0.0088 0.0055 0.0033 127 0.0089 0.0056 0.0033 128 0.0090 0.0056 0.0033 129 0.0091 0.0057 0.0034 130 0.0091 0.0057 0.0034 131 0.0092 0.0058 0.0034 132 0.0093 0.0059 0.0035 133 0.0094 0.0059 0.0035 134 0.0095 0.0060 0.0035 135 0.0096 0.0060 0.0036 136 0.0097 0.0061 0.0036 137 0.0098 0.0062 0.0036 138 0.0099 0.0062 0.0037 139 0.0100 0.0063 0.0037 140 0.0101 0.0063 0.0037 141 0.0102 0.0064 0.0038 142 0.0103 0.0065 0.0038 143 0.0104 0.0066 0.0039 144 0.0105 0.0066 0.0039 145 0.0129 0.0081 0.0048 146 0.0130 0.0082 0.0048 147 0.0132 0.0083 0.0049 148 0.0133 0.0084 0.0049 149 0.0135 0.0085 0.0050 150 0.0136 0.0085 0.0050 151 0.0138 0.0087 0.0051 152 0.0139 0.0087 0.0052 153 0.0141 0.0089 0.0052 154 0.0142 0.0089 0.0053 155 0.0145 0.0091 0.0054 156 0.0146 0.0092 0.0054 157 0.0148 0.0093 0.0055 158 0.0150 0.0094 0.0056 159 0.0152 0.0096 0.0057 160 0.0154 0.0097 0.0057 161 0.0157 0.0099 0.0058 162 0.0159 0.0100 0.0059 163 0.0162 0.0102 0.0060 164 0.0164 0.0103 0.0061 165 0.0167 0.0105 0.0062 166 0.0169 0.0106 0.0063 167 0.0173 0.0109 0.0064 168 0.0176 0.0110 0.0065 169 0.0180 0.0113 0.0067 170 0.0183 0.0115 0.0068 171 0.0188 0.0118 0.0070 172 0.0191 0.0120 0.0071 173 0.0197 0.0124 0.0073 174 0.0200 0.0126 0.0074 175 0.0207 0.0130 0.0077 176 0.0211 0.0133 0.0078 177 0.0219 0.0138 0.0081 178 0.0224 0.0141 0.0083 179 0.0234 0.0147 0.0087 180 0.0239 0.0151 0.0089 181 0.0252 0.0158 0.0093 182 0.0259 0.0163 0.0096 183 0.0275 0.0173 0.0102 184 0.0285 0.0179 0.0106 185 0.0234 0.0147 0.0087 186 0.0247 0.0155 0.0092 187 0.0280 0.0176 0.0104 188 0.0302 0.0190 0.0112 189 0.0364 0.0229 0.0135 190 0.0411 0.0258 0.0153 191 0.0587 0.0369 0.0218 192 0.0808 0.0489 0.0319 193 0.2528 0.0489 0.2039 194 0.0478 0.0301 0.0178 195 0.0329 0.0207 0.0122 196 0.0262 0.0165 0.0097 197 0.0295 0.0186 0.0110 198 0.0267 0.0168 0.0099 199 0.0245 0.0154 0.0091 200 0.0229 0.0144 0.0085 201 0.0215 0.0135 0.0080 202 0.0204 0.0128 0.0076 203 0.0194 0.0122 0.0072 204 0.0185 0.0117 0.0069 205 0.0178 0.0112 0.0066 206 0.0171 0.0108 0.0064 207 0.0165 0.0104 0.0061 208 0.0160 0.0101 0.0059 209 0.0155 0.0098 0.0058 210 0.0151 0.0095 0.0056 211 0.0147 0.0093 0.0055 212 0.0143 0.0090 0.0053 213 0.0140 0.0088 0.0052 214 0.0137 0.0086 0.0051 215 0.0134 0.0084 0.0050 216 0.0131 0.0082 0.0049 217 0.0106 0.0067 0.0039 218 0.0104 0.0065 0.0038 219 0.0101 0.0064 0.0038 220 0.0099 0.0062 0.0037 221 0.0097 0.0061 0.0036 222 0.0095 0.0060 0.0035 223 0.0094 0.0059 0.0035 224 0.0092 0.0058 0.0034 225 0.0090 0.0057 0.0034 226 0.0089 0.0056 0.0033 227 0.0087 0.0055 0.0032 228 0.0086 0.0054 0.0032 229 0.0085 0.0053 0.0031 230 0.0083 0.0052 0.0031 231 0.0082 0.0052 0.0030 232 0.0081 0.0051 0.0030 233 0.0080 0.0050 0.0030 234 0.0079 0.0049 0.0029 235 0.0078 0.0049 0.0029 236 0.0076 0.0048 0.0028 237 0.0076 0.0047 0.0028 238 0.0075 0.0047 0.0028 239 0.0074 0.0046 0.0027 240 0.0073 0.0046 0.0027 241 0.0072 0.0045 0.0027 242 0.0071 0.0045 0.0026 243 0.0070 0.0044 0.0026 244 0.0069 0.0044 0.0026 245 0.0069 0.0043 0.0026 246 0.0068 0.0043 0.0025 247 0.0067 0.0042 0.0025 248 0.0067 0.0042 0.0025 249 0.0066 0.0041 0.0024 250 0.0065 0.0041 0.0024 251 0.0065 0.0041 0.0024 252 0.0064 0.0040 0.0024 253 0.0063 0.0040 0.0024 254 0.0063 0.0040 0.0023 255 0.0062 0.0039 0.0023 256 0.0062 0.0039 0.0023 257 0.0061 0.0038 0.0023 258 0.0061 0.0038 0.0022 259 0.0060 0.0038 0.0022 260 0.0060 0.0037 0.0022 261 0.0059 0.0037 0.0022 262 0.0059 0.0037 0.0022 263 0.0058 0.0037 0.0022 264 0.0058 0.0036 0.0021 265 0.0057 0.0036 0.0021 266 0.0057 0.0036 0.0021 267 0.0056 0.0035 0.0021 268 0.0056 0.0035 0.0021 269 0.0056 0.0035 0.0021 270 0.0055 0.0035 0.0020 271 0.0055 0.0034 0.0020 272 0.0054 0.0034 0.0020 273 0.0054 0.0034 0.0020 274 0.0054 0.0034 0.0020 275 0.0053 0.0033 0.0020 276 0.0053 0.0033 0.0020 277 0.0052 0.0033 0.0019 278 0.0052 0.0033 0.0019 279 0.0052 0.0033 0.0019 280 0.0051 0.0032 0.0019 281 0.0051 0.0032 0.0019 282 0.0051 0.0032 0.0019 283 0.0050 0.0032 0.0019 284 0.0050 0.0032 0.0019 285 0.0050 0.0031 0.0019 286 0.0050 0.0031 0.0018 287 0.0049 0.0031 0.0018 288 0.0049 0.0031 0.0018 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 1.91(In) Total effective rainfall = 1.31(In) Peak flow rate in flood hydrograph = 30.31(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 10.0 20.0 30.0 40.0 ----------------------------------------------------------------------- 0+ 5 0.0002 0.02 Q | | | | 0+10 0.0012 0.15 Q | | | | 0+15 0.0037 0.37 Q | | | | 0+20 0.0074 0.54 Q | | | | 0+25 0.0116 0.60 Q | | | | 0+30 0.0159 0.63 Q | | | | 0+35 0.0203 0.64 Q | | | | 0+40 0.0248 0.64 Q | | | | 0+45 0.0292 0.65 Q | | | | 0+50 0.0337 0.65 Q | | | | 0+55 0.0382 0.65 Q | | | | 1+ 0 0.0426 0.65 Q | | | | 1+ 5 0.0471 0.65 Q | | | | 1+10 0.0517 0.66 Q | | | | 1+15 0.0562 0.66 Q | | | | 1+20 0.0607 0.66 Q | | | | 1+25 0.0653 0.66 Q | | | | 1+30 0.0699 0.66 Q | | | | 1+35 0.0745 0.67 Q | | | | 1+40 0.0791 0.67 QV | | | | 1+45 0.0837 0.67 QV | | | | 1+50 0.0883 0.67 QV | | | | 1+55 0.0930 0.67 QV | | | | 2+ 0 0.0976 0.68 QV | | | | 2+ 5 0.1023 0.68 QV | | | | 2+10 0.1070 0.68 QV | | | | 2+15 0.1117 0.68 QV | | | | 2+20 0.1164 0.69 QV | | | | 2+25 0.1212 0.69 QV | | | | 2+30 0.1259 0.69 QV | | | | 2+35 0.1307 0.69 QV | | | | 2+40 0.1355 0.70 QV | | | | 2+45 0.1403 0.70 QV | | | | 2+50 0.1451 0.70 QV | | | | 2+55 0.1500 0.70 QV | | | | 3+ 0 0.1548 0.71 QV | | | | 3+ 5 0.1597 0.71 Q V | | | | 3+10 0.1646 0.71 Q V | | | | 3+15 0.1695 0.71 Q V | | | | 3+20 0.1744 0.72 Q V | | | | 3+25 0.1794 0.72 Q V | | | | 3+30 0.1843 0.72 Q V | | | | 3+35 0.1893 0.72 Q V | | | | 3+40 0.1943 0.73 Q V | | | | 3+45 0.1994 0.73 Q V | | | | 3+50 0.2044 0.73 Q V | | | | 3+55 0.2095 0.73 Q V | | | | 4+ 0 0.2145 0.74 Q V | | | | 4+ 5 0.2196 0.74 Q V | | | | 4+10 0.2247 0.74 Q V | | | | 4+15 0.2299 0.75 Q V | | | | 4+20 0.2350 0.75 Q V | | | | 4+25 0.2402 0.75 Q V | | | | 4+30 0.2454 0.75 Q V | | | | 4+35 0.2506 0.76 Q V | | | | 4+40 0.2559 0.76 Q V | | | | 4+45 0.2611 0.76 Q V | | | | 4+50 0.2664 0.77 Q V | | | | 4+55 0.2717 0.77 Q V | | | | 5+ 0 0.2771 0.77 Q V | | | | 5+ 5 0.2824 0.78 Q V | | | | 5+10 0.2878 0.78 Q V | | | | 5+15 0.2932 0.78 Q V | | | | 5+20 0.2986 0.79 Q V | | | | 5+25 0.3040 0.79 Q V | | | | 5+30 0.3095 0.79 Q V | | | | 5+35 0.3150 0.80 Q V | | | | 5+40 0.3205 0.80 Q V | | | | 5+45 0.3260 0.80 Q V | | | | 5+50 0.3316 0.81 Q V | | | | 5+55 0.3372 0.81 Q V | | | | 6+ 0 0.3428 0.82 Q V | | | | 6+ 5 0.3485 0.82 Q V | | | | 6+10 0.3541 0.82 Q V | | | | 6+15 0.3598 0.83 Q V | | | | 6+20 0.3655 0.83 Q V | | | | 6+25 0.3713 0.83 Q V | | | | 6+30 0.3771 0.84 Q V | | | | 6+35 0.3829 0.84 Q V | | | | 6+40 0.3887 0.85 Q V | | | | 6+45 0.3945 0.85 Q V | | | | 6+50 0.4004 0.86 Q V | | | | 6+55 0.4064 0.86 Q V | | | | 7+ 0 0.4123 0.86 Q V | | | | 7+ 5 0.4183 0.87 Q V | | | | 7+10 0.4243 0.87 Q V | | | | 7+15 0.4303 0.88 Q V | | | | 7+20 0.4364 0.88 Q V | | | | 7+25 0.4425 0.89 Q V | | | | 7+30 0.4487 0.89 Q V | | | | 7+35 0.4548 0.90 Q V | | | | 7+40 0.4610 0.90 Q V | | | | 7+45 0.4673 0.91 Q V | | | | 7+50 0.4735 0.91 Q V | | | | 7+55 0.4798 0.92 Q V | | | | 8+ 0 0.4862 0.92 Q V | | | | 8+ 5 0.4926 0.93 Q V | | | | 8+10 0.4990 0.93 Q V | | | | 8+15 0.5054 0.94 Q V | | | | 8+20 0.5119 0.94 Q V | | | | 8+25 0.5185 0.95 Q V | | | | 8+30 0.5250 0.95 Q V | | | | 8+35 0.5317 0.96 Q V | | | | 8+40 0.5383 0.97 Q V | | | | 8+45 0.5450 0.97 Q V | | | | 8+50 0.5517 0.98 Q V | | | | 8+55 0.5585 0.98 Q V | | | | 9+ 0 0.5653 0.99 Q V | | | | 9+ 5 0.5722 1.00 Q V | | | | 9+10 0.5791 1.00 |Q V | | | | 9+15 0.5861 1.01 |Q V | | | | 9+20 0.5931 1.02 |Q V | | | | 9+25 0.6001 1.02 |Q V | | | | 9+30 0.6073 1.03 |Q V | | | | 9+35 0.6144 1.04 |Q V | | | | 9+40 0.6216 1.05 |Q V | | | | 9+45 0.6289 1.05 |Q V | | | | 9+50 0.6362 1.06 |Q V | | | | 9+55 0.6435 1.07 |Q V | | | | 10+ 0 0.6510 1.08 |Q V | | | | 10+ 5 0.6584 1.09 |Q V | | | | 10+10 0.6660 1.09 |Q V | | | | 10+15 0.6736 1.10 |Q V | | | | 10+20 0.6812 1.11 |Q V | | | | 10+25 0.6889 1.12 |Q V | | | | 10+30 0.6967 1.13 |Q V | | | | 10+35 0.7045 1.14 |Q V | | | | 10+40 0.7124 1.15 |Q V| | | | 10+45 0.7204 1.16 |Q V| | | | 10+50 0.7284 1.17 |Q V| | | | 10+55 0.7366 1.18 |Q V| | | | 11+ 0 0.7447 1.19 |Q V| | | | 11+ 5 0.7530 1.20 |Q V| | | | 11+10 0.7613 1.21 |Q V| | | | 11+15 0.7697 1.22 |Q V| | | | 11+20 0.7782 1.23 |Q V| | | | 11+25 0.7868 1.24 |Q V| | | | 11+30 0.7955 1.26 |Q V | | | 11+35 0.8042 1.27 |Q V | | | 11+40 0.8130 1.28 |Q V | | | 11+45 0.8220 1.30 |Q V | | | 11+50 0.8310 1.31 |Q V | | | 11+55 0.8401 1.32 |Q V | | | 12+ 0 0.8493 1.34 |Q V | | | 12+ 5 0.8587 1.36 |Q V | | | 12+10 0.8686 1.44 |Q V | | | 12+15 0.8793 1.56 |Q |V | | | 12+20 0.8907 1.65 |Q |V | | | 12+25 0.9023 1.70 |Q |V | | | 12+30 0.9142 1.72 |Q |V | | | 12+35 0.9262 1.75 |Q |V | | | 12+40 0.9384 1.77 |Q |V | | | 12+45 0.9507 1.79 |Q | V | | | 12+50 0.9631 1.81 |Q | V | | | 12+55 0.9757 1.83 |Q | V | | | 13+ 0 0.9884 1.85 |Q | V | | | 13+ 5 1.0013 1.87 |Q | V | | | 13+10 1.0144 1.90 |Q | V | | | 13+15 1.0276 1.92 |Q | V | | | 13+20 1.0410 1.95 |Q | V | | | 13+25 1.0546 1.97 |Q | V | | | 13+30 1.0684 2.00 | Q | V | | | 13+35 1.0823 2.03 | Q | V | | | 13+40 1.0965 2.06 | Q | V | | | 13+45 1.1109 2.09 | Q | V | | | 13+50 1.1256 2.13 | Q | V | | | 13+55 1.1405 2.16 | Q | V | | | 14+ 0 1.1556 2.20 | Q | V | | | 14+ 5 1.1710 2.24 | Q | V | | | 14+10 1.1867 2.28 | Q | V | | | 14+15 1.2027 2.33 | Q | V | | | 14+20 1.2191 2.37 | Q | V | | | 14+25 1.2358 2.42 | Q | V | | | 14+30 1.2528 2.48 | Q | V | | | 14+35 1.2703 2.54 | Q | V | | | 14+40 1.2882 2.60 | Q | V | | | 14+45 1.3065 2.66 | Q | V | | | 14+50 1.3254 2.74 | Q | V | | | 14+55 1.3448 2.82 | Q | V | | | 15+ 0 1.3648 2.90 | Q | V | | | 15+ 5 1.3854 3.00 | Q | V | | | 15+10 1.4068 3.10 | Q | V | | | 15+15 1.4290 3.22 | Q | V | | | 15+20 1.4521 3.36 | Q | V | | | 15+25 1.4760 3.48 | Q | V | | | 15+30 1.4999 3.47 | Q | V | | | 15+35 1.5229 3.34 | Q | V| | | 15+40 1.5460 3.35 | Q | V| | | 15+45 1.5706 3.57 | Q | V| | | 15+50 1.5979 3.96 | Q | V | | 15+55 1.6293 4.57 | Q | V | | 16+ 0 1.6680 5.62 | Q | |V | | 16+ 5 1.7339 9.57 | Q| |V | | 16+10 1.8796 21.16 | | |Q V | | 16+15 2.0884 30.31 | | | V Q | 16+20 2.2475 23.11 | | | Q V | | 16+25 2.3304 12.03 | | Q | V| | 16+30 2.3766 6.72 | Q | | V | 16+35 2.4075 4.48 | Q | | V | 16+40 2.4343 3.88 | Q | | V | 16+45 2.4571 3.31 | Q | | |V | 16+50 2.4783 3.08 | Q | | |V | 16+55 2.4982 2.89 | Q | | |V | 17+ 0 2.5170 2.73 | Q | | |V | 17+ 5 2.5348 2.59 | Q | | | V | 17+10 2.5518 2.47 | Q | | | V | 17+15 2.5680 2.36 | Q | | | V | 17+20 2.5837 2.27 | Q | | | V | 17+25 2.5987 2.19 | Q | | | V | 17+30 2.6133 2.12 | Q | | | V | 17+35 2.6274 2.05 | Q | | | V | 17+40 2.6412 1.99 |Q | | | V | 17+45 2.6545 1.94 |Q | | | V | 17+50 2.6675 1.89 |Q | | | V | 17+55 2.6802 1.84 |Q | | | V | 18+ 0 2.6926 1.80 |Q | | | V | 18+ 5 2.7047 1.75 |Q | | | V | 18+10 2.7161 1.65 |Q | | | V | 18+15 2.7265 1.52 |Q | | | V | 18+20 2.7362 1.41 |Q | | | V | 18+25 2.7455 1.35 |Q | | | V | 18+30 2.7545 1.31 |Q | | | V | 18+35 2.7634 1.28 |Q | | | V | 18+40 2.7720 1.25 |Q | | | V | 18+45 2.7804 1.23 |Q | | | V | 18+50 2.7888 1.21 |Q | | | V | 18+55 2.7969 1.18 |Q | | | V | 19+ 0 2.8049 1.16 |Q | | | V | 19+ 5 2.8128 1.14 |Q | | | V | 19+10 2.8206 1.13 |Q | | | V | 19+15 2.8282 1.11 |Q | | | V | 19+20 2.8357 1.09 |Q | | | V | 19+25 2.8431 1.07 |Q | | | V | 19+30 2.8504 1.06 |Q | | | V | 19+35 2.8576 1.04 |Q | | | V | 19+40 2.8647 1.03 |Q | | | V | 19+45 2.8717 1.02 |Q | | | V | 19+50 2.8786 1.00 |Q | | | V | 19+55 2.8854 0.99 Q | | | V | 20+ 0 2.8921 0.98 Q | | | V | 20+ 5 2.8987 0.96 Q | | | V | 20+10 2.9053 0.95 Q | | | V | 20+15 2.9118 0.94 Q | | | V | 20+20 2.9182 0.93 Q | | | V | 20+25 2.9245 0.92 Q | | | V | 20+30 2.9308 0.91 Q | | | V | 20+35 2.9370 0.90 Q | | | V | 20+40 2.9431 0.89 Q | | | V | 20+45 2.9492 0.88 Q | | | V | 20+50 2.9552 0.87 Q | | | V | 20+55 2.9611 0.86 Q | | | V | 21+ 0 2.9670 0.85 Q | | | V | 21+ 5 2.9728 0.85 Q | | | V | 21+10 2.9786 0.84 Q | | | V | 21+15 2.9843 0.83 Q | | | V | 21+20 2.9899 0.82 Q | | | V | 21+25 2.9955 0.81 Q | | | V | 21+30 3.0011 0.81 Q | | | V | 21+35 3.0066 0.80 Q | | | V | 21+40 3.0121 0.79 Q | | | V | 21+45 3.0175 0.79 Q | | | V | 21+50 3.0228 0.78 Q | | | V | 21+55 3.0282 0.77 Q | | | V | 22+ 0 3.0334 0.77 Q | | | V | 22+ 5 3.0387 0.76 Q | | | V | 22+10 3.0439 0.75 Q | | | V | 22+15 3.0490 0.75 Q | | | V | 22+20 3.0541 0.74 Q | | | V | 22+25 3.0592 0.74 Q | | | V | 22+30 3.0642 0.73 Q | | | V | 22+35 3.0692 0.73 Q | | | V | 22+40 3.0742 0.72 Q | | | V | 22+45 3.0791 0.71 Q | | | V | 22+50 3.0840 0.71 Q | | | V| 22+55 3.0888 0.70 Q | | | V| 23+ 0 3.0937 0.70 Q | | | V| 23+ 5 3.0984 0.69 Q | | | V| 23+10 3.1032 0.69 Q | | | V| 23+15 3.1079 0.69 Q | | | V| 23+20 3.1126 0.68 Q | | | V| 23+25 3.1173 0.68 Q | | | V| 23+30 3.1219 0.67 Q | | | V| 23+35 3.1265 0.67 Q | | | V| 23+40 3.1311 0.66 Q | | | V| 23+45 3.1356 0.66 Q | | | V| 23+50 3.1401 0.66 Q | | | V| 23+55 3.1446 0.65 Q | | | V| 24+ 0 3.1490 0.65 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 10 YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 10 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 5 8.22 1 0.68 -------------------------------------------------------------------- Rainfall data for year 5 8.22 6 1.76 -------------------------------------------------------------------- Rainfall data for year 5 8.22 24 3.22 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 8.22 1.000 0.978 0.900 0.880 Area-averaged adjusted loss rate Fm (In/Hr) = 0.880 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 10-year pre-condition flow rates shall be calculated using 5-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 7.40 0.900 32.0 32.0 16.10 0.000 0.82 0.100 98.0 98.0 0.20 0.928 Area-averaged catchment yield fraction, Y = 0.093 Area-averaged low loss fraction, Yb = 0.907 User entry of time of concentration = 0.303 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 8.22(Ac.) Catchment Lag time = 0.243 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 34.3614 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.880(In/Hr) Average low loss rate fraction (Yb) = 0.907 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.253(In) Computed peak 30-minute rainfall = 0.518(In) Specified peak 1-hour rainfall = 0.684(In) Computed peak 3-hour rainfall = 1.221(In) Specified peak 6-hour rainfall = 1.760(In) Specified peak 24-hour rainfall = 3.220(In) Rainfall depth area reduction factors: Using a total area of 8.22(Ac.) (Ref: fig. E-4) 5-minute factor = 1.000 Adjusted rainfall = 0.253(In) 30-minute factor = 1.000 Adjusted rainfall = 0.518(In) 1-hour factor = 1.000 Adjusted rainfall = 0.684(In) 3-hour factor = 1.000 Adjusted rainfall = 1.221(In) 6-hour factor = 1.000 Adjusted rainfall = 1.760(In) 24-hour factor = 1.000 Adjusted rainfall = 3.220(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 99.41 (CFS)) 1 2.380 2.366 2 14.565 12.114 3 37.668 22.967 4 66.447 28.609 5 84.161 17.610 6 92.859 8.646 7 97.015 4.132 8 98.439 1.416 9 99.057 0.615 10 99.673 0.612 11 100.000 0.325 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.2531 0.2531 2 0.3339 0.0809 3 0.3927 0.0588 4 0.4406 0.0479 5 0.4817 0.0411 6 0.5182 0.0364 7 0.5511 0.0330 8 0.5814 0.0302 9 0.6094 0.0280 10 0.6356 0.0262 11 0.6603 0.0247 12 0.6837 0.0234 13 0.7132 0.0295 14 0.7417 0.0284 15 0.7692 0.0275 16 0.7958 0.0267 17 0.8217 0.0259 18 0.8469 0.0252 19 0.8714 0.0245 20 0.8953 0.0239 21 0.9187 0.0234 22 0.9415 0.0228 23 0.9639 0.0223 24 0.9858 0.0219 25 1.0072 0.0215 26 1.0283 0.0211 27 1.0490 0.0207 28 1.0693 0.0203 29 1.0893 0.0200 30 1.1090 0.0197 31 1.1283 0.0194 32 1.1474 0.0191 33 1.1662 0.0188 34 1.1847 0.0185 35 1.2030 0.0183 36 1.2210 0.0180 37 1.2387 0.0178 38 1.2563 0.0175 39 1.2736 0.0173 40 1.2908 0.0171 41 1.3077 0.0169 42 1.3244 0.0167 43 1.3409 0.0165 44 1.3573 0.0164 45 1.3735 0.0162 46 1.3895 0.0160 47 1.4054 0.0159 48 1.4211 0.0157 49 1.4366 0.0155 50 1.4520 0.0154 51 1.4672 0.0152 52 1.4823 0.0151 53 1.4973 0.0150 54 1.5122 0.0148 55 1.5269 0.0147 56 1.5414 0.0146 57 1.5559 0.0145 58 1.5702 0.0143 59 1.5845 0.0142 60 1.5986 0.0141 61 1.6126 0.0140 62 1.6265 0.0139 63 1.6403 0.0138 64 1.6539 0.0137 65 1.6675 0.0136 66 1.6810 0.0135 67 1.6944 0.0134 68 1.7077 0.0133 69 1.7209 0.0132 70 1.7340 0.0131 71 1.7470 0.0130 72 1.7600 0.0129 73 1.7706 0.0106 74 1.7811 0.0105 75 1.7915 0.0104 76 1.8019 0.0104 77 1.8122 0.0103 78 1.8224 0.0102 79 1.8326 0.0101 80 1.8426 0.0101 81 1.8526 0.0100 82 1.8626 0.0099 83 1.8724 0.0099 84 1.8822 0.0098 85 1.8920 0.0097 86 1.9016 0.0097 87 1.9112 0.0096 88 1.9208 0.0095 89 1.9303 0.0095 90 1.9397 0.0094 91 1.9490 0.0094 92 1.9583 0.0093 93 1.9676 0.0092 94 1.9768 0.0092 95 1.9859 0.0091 96 1.9950 0.0091 97 2.0040 0.0090 98 2.0130 0.0090 99 2.0219 0.0089 100 2.0308 0.0089 101 2.0396 0.0088 102 2.0484 0.0088 103 2.0571 0.0087 104 2.0658 0.0087 105 2.0744 0.0086 106 2.0830 0.0086 107 2.0916 0.0085 108 2.1001 0.0085 109 2.1085 0.0085 110 2.1169 0.0084 111 2.1253 0.0084 112 2.1336 0.0083 113 2.1419 0.0083 114 2.1501 0.0082 115 2.1583 0.0082 116 2.1665 0.0082 117 2.1746 0.0081 118 2.1827 0.0081 119 2.1907 0.0080 120 2.1987 0.0080 121 2.2067 0.0080 122 2.2146 0.0079 123 2.2225 0.0079 124 2.2304 0.0079 125 2.2382 0.0078 126 2.2460 0.0078 127 2.2537 0.0078 128 2.2614 0.0077 129 2.2691 0.0077 130 2.2768 0.0076 131 2.2844 0.0076 132 2.2920 0.0076 133 2.2995 0.0076 134 2.3070 0.0075 135 2.3145 0.0075 136 2.3220 0.0075 137 2.3294 0.0074 138 2.3368 0.0074 139 2.3442 0.0074 140 2.3515 0.0073 141 2.3588 0.0073 142 2.3661 0.0073 143 2.3733 0.0072 144 2.3805 0.0072 145 2.3877 0.0072 146 2.3949 0.0072 147 2.4020 0.0071 148 2.4091 0.0071 149 2.4162 0.0071 150 2.4233 0.0071 151 2.4303 0.0070 152 2.4373 0.0070 153 2.4443 0.0070 154 2.4512 0.0069 155 2.4581 0.0069 156 2.4650 0.0069 157 2.4719 0.0069 158 2.4788 0.0068 159 2.4856 0.0068 160 2.4924 0.0068 161 2.4992 0.0068 162 2.5059 0.0068 163 2.5126 0.0067 164 2.5193 0.0067 165 2.5260 0.0067 166 2.5327 0.0067 167 2.5393 0.0066 168 2.5459 0.0066 169 2.5525 0.0066 170 2.5591 0.0066 171 2.5657 0.0065 172 2.5722 0.0065 173 2.5787 0.0065 174 2.5852 0.0065 175 2.5916 0.0065 176 2.5981 0.0064 177 2.6045 0.0064 178 2.6109 0.0064 179 2.6173 0.0064 180 2.6236 0.0064 181 2.6300 0.0063 182 2.6363 0.0063 183 2.6426 0.0063 184 2.6489 0.0063 185 2.6552 0.0063 186 2.6614 0.0062 187 2.6676 0.0062 188 2.6738 0.0062 189 2.6800 0.0062 190 2.6862 0.0062 191 2.6923 0.0062 192 2.6985 0.0061 193 2.7046 0.0061 194 2.7107 0.0061 195 2.7168 0.0061 196 2.7228 0.0061 197 2.7289 0.0060 198 2.7349 0.0060 199 2.7409 0.0060 200 2.7469 0.0060 201 2.7529 0.0060 202 2.7588 0.0060 203 2.7648 0.0059 204 2.7707 0.0059 205 2.7766 0.0059 206 2.7825 0.0059 207 2.7884 0.0059 208 2.7943 0.0059 209 2.8001 0.0058 210 2.8059 0.0058 211 2.8118 0.0058 212 2.8175 0.0058 213 2.8233 0.0058 214 2.8291 0.0058 215 2.8349 0.0058 216 2.8406 0.0057 217 2.8463 0.0057 218 2.8520 0.0057 219 2.8577 0.0057 220 2.8634 0.0057 221 2.8691 0.0057 222 2.8747 0.0056 223 2.8803 0.0056 224 2.8860 0.0056 225 2.8916 0.0056 226 2.8972 0.0056 227 2.9027 0.0056 228 2.9083 0.0056 229 2.9139 0.0056 230 2.9194 0.0055 231 2.9249 0.0055 232 2.9304 0.0055 233 2.9359 0.0055 234 2.9414 0.0055 235 2.9469 0.0055 236 2.9523 0.0055 237 2.9578 0.0054 238 2.9632 0.0054 239 2.9686 0.0054 240 2.9740 0.0054 241 2.9794 0.0054 242 2.9848 0.0054 243 2.9902 0.0054 244 2.9955 0.0054 245 3.0009 0.0053 246 3.0062 0.0053 247 3.0115 0.0053 248 3.0168 0.0053 249 3.0221 0.0053 250 3.0274 0.0053 251 3.0327 0.0053 252 3.0380 0.0053 253 3.0432 0.0052 254 3.0484 0.0052 255 3.0537 0.0052 256 3.0589 0.0052 257 3.0641 0.0052 258 3.0693 0.0052 259 3.0744 0.0052 260 3.0796 0.0052 261 3.0848 0.0052 262 3.0899 0.0051 263 3.0950 0.0051 264 3.1002 0.0051 265 3.1053 0.0051 266 3.1104 0.0051 267 3.1155 0.0051 268 3.1205 0.0051 269 3.1256 0.0051 270 3.1307 0.0051 271 3.1357 0.0050 272 3.1408 0.0050 273 3.1458 0.0050 274 3.1508 0.0050 275 3.1558 0.0050 276 3.1608 0.0050 277 3.1658 0.0050 278 3.1708 0.0050 279 3.1757 0.0050 280 3.1807 0.0050 281 3.1856 0.0049 282 3.1906 0.0049 283 3.1955 0.0049 284 3.2004 0.0049 285 3.2053 0.0049 286 3.2102 0.0049 287 3.2151 0.0049 288 3.2200 0.0049 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0049 0.0044 0.0005 2 0.0049 0.0044 0.0005 3 0.0049 0.0045 0.0005 4 0.0049 0.0045 0.0005 5 0.0049 0.0045 0.0005 6 0.0049 0.0045 0.0005 7 0.0050 0.0045 0.0005 8 0.0050 0.0045 0.0005 9 0.0050 0.0045 0.0005 10 0.0050 0.0045 0.0005 11 0.0050 0.0046 0.0005 12 0.0050 0.0046 0.0005 13 0.0051 0.0046 0.0005 14 0.0051 0.0046 0.0005 15 0.0051 0.0046 0.0005 16 0.0051 0.0046 0.0005 17 0.0051 0.0046 0.0005 18 0.0051 0.0047 0.0005 19 0.0052 0.0047 0.0005 20 0.0052 0.0047 0.0005 21 0.0052 0.0047 0.0005 22 0.0052 0.0047 0.0005 23 0.0052 0.0047 0.0005 24 0.0052 0.0047 0.0005 25 0.0053 0.0048 0.0005 26 0.0053 0.0048 0.0005 27 0.0053 0.0048 0.0005 28 0.0053 0.0048 0.0005 29 0.0053 0.0048 0.0005 30 0.0053 0.0048 0.0005 31 0.0054 0.0049 0.0005 32 0.0054 0.0049 0.0005 33 0.0054 0.0049 0.0005 34 0.0054 0.0049 0.0005 35 0.0054 0.0049 0.0005 36 0.0055 0.0050 0.0005 37 0.0055 0.0050 0.0005 38 0.0055 0.0050 0.0005 39 0.0055 0.0050 0.0005 40 0.0055 0.0050 0.0005 41 0.0056 0.0050 0.0005 42 0.0056 0.0051 0.0005 43 0.0056 0.0051 0.0005 44 0.0056 0.0051 0.0005 45 0.0056 0.0051 0.0005 46 0.0057 0.0051 0.0005 47 0.0057 0.0052 0.0005 48 0.0057 0.0052 0.0005 49 0.0057 0.0052 0.0005 50 0.0058 0.0052 0.0005 51 0.0058 0.0052 0.0005 52 0.0058 0.0053 0.0005 53 0.0058 0.0053 0.0005 54 0.0058 0.0053 0.0005 55 0.0059 0.0053 0.0005 56 0.0059 0.0053 0.0005 57 0.0059 0.0054 0.0005 58 0.0059 0.0054 0.0006 59 0.0060 0.0054 0.0006 60 0.0060 0.0054 0.0006 61 0.0060 0.0055 0.0006 62 0.0060 0.0055 0.0006 63 0.0061 0.0055 0.0006 64 0.0061 0.0055 0.0006 65 0.0061 0.0056 0.0006 66 0.0062 0.0056 0.0006 67 0.0062 0.0056 0.0006 68 0.0062 0.0056 0.0006 69 0.0062 0.0057 0.0006 70 0.0063 0.0057 0.0006 71 0.0063 0.0057 0.0006 72 0.0063 0.0057 0.0006 73 0.0064 0.0058 0.0006 74 0.0064 0.0058 0.0006 75 0.0064 0.0058 0.0006 76 0.0064 0.0058 0.0006 77 0.0065 0.0059 0.0006 78 0.0065 0.0059 0.0006 79 0.0065 0.0059 0.0006 80 0.0066 0.0060 0.0006 81 0.0066 0.0060 0.0006 82 0.0066 0.0060 0.0006 83 0.0067 0.0061 0.0006 84 0.0067 0.0061 0.0006 85 0.0068 0.0061 0.0006 86 0.0068 0.0061 0.0006 87 0.0068 0.0062 0.0006 88 0.0068 0.0062 0.0006 89 0.0069 0.0063 0.0006 90 0.0069 0.0063 0.0006 91 0.0070 0.0063 0.0006 92 0.0070 0.0064 0.0006 93 0.0071 0.0064 0.0007 94 0.0071 0.0064 0.0007 95 0.0071 0.0065 0.0007 96 0.0072 0.0065 0.0007 97 0.0072 0.0065 0.0007 98 0.0072 0.0066 0.0007 99 0.0073 0.0066 0.0007 100 0.0073 0.0067 0.0007 101 0.0074 0.0067 0.0007 102 0.0074 0.0067 0.0007 103 0.0075 0.0068 0.0007 104 0.0075 0.0068 0.0007 105 0.0076 0.0069 0.0007 106 0.0076 0.0069 0.0007 107 0.0077 0.0070 0.0007 108 0.0077 0.0070 0.0007 109 0.0078 0.0071 0.0007 110 0.0078 0.0071 0.0007 111 0.0079 0.0072 0.0007 112 0.0079 0.0072 0.0007 113 0.0080 0.0073 0.0007 114 0.0080 0.0073 0.0007 115 0.0081 0.0074 0.0008 116 0.0082 0.0074 0.0008 117 0.0082 0.0075 0.0008 118 0.0083 0.0075 0.0008 119 0.0084 0.0076 0.0008 120 0.0084 0.0076 0.0008 121 0.0085 0.0077 0.0008 122 0.0085 0.0077 0.0008 123 0.0086 0.0078 0.0008 124 0.0087 0.0079 0.0008 125 0.0088 0.0080 0.0008 126 0.0088 0.0080 0.0008 127 0.0089 0.0081 0.0008 128 0.0090 0.0081 0.0008 129 0.0091 0.0082 0.0008 130 0.0091 0.0083 0.0008 131 0.0092 0.0084 0.0009 132 0.0093 0.0084 0.0009 133 0.0094 0.0085 0.0009 134 0.0095 0.0086 0.0009 135 0.0096 0.0087 0.0009 136 0.0097 0.0088 0.0009 137 0.0098 0.0089 0.0009 138 0.0099 0.0089 0.0009 139 0.0100 0.0091 0.0009 140 0.0101 0.0091 0.0009 141 0.0102 0.0093 0.0009 142 0.0103 0.0093 0.0010 143 0.0104 0.0095 0.0010 144 0.0105 0.0096 0.0010 145 0.0129 0.0117 0.0012 146 0.0130 0.0118 0.0012 147 0.0132 0.0120 0.0012 148 0.0133 0.0121 0.0012 149 0.0135 0.0122 0.0013 150 0.0136 0.0123 0.0013 151 0.0138 0.0125 0.0013 152 0.0139 0.0126 0.0013 153 0.0141 0.0128 0.0013 154 0.0142 0.0129 0.0013 155 0.0145 0.0131 0.0013 156 0.0146 0.0132 0.0014 157 0.0148 0.0135 0.0014 158 0.0150 0.0136 0.0014 159 0.0152 0.0138 0.0014 160 0.0154 0.0140 0.0014 161 0.0157 0.0142 0.0015 162 0.0159 0.0144 0.0015 163 0.0162 0.0147 0.0015 164 0.0164 0.0148 0.0015 165 0.0167 0.0152 0.0016 166 0.0169 0.0154 0.0016 167 0.0173 0.0157 0.0016 168 0.0175 0.0159 0.0016 169 0.0180 0.0163 0.0017 170 0.0183 0.0166 0.0017 171 0.0188 0.0170 0.0017 172 0.0191 0.0173 0.0018 173 0.0197 0.0178 0.0018 174 0.0200 0.0181 0.0019 175 0.0207 0.0188 0.0019 176 0.0211 0.0191 0.0020 177 0.0219 0.0199 0.0020 178 0.0223 0.0203 0.0021 179 0.0234 0.0212 0.0022 180 0.0239 0.0217 0.0022 181 0.0252 0.0228 0.0023 182 0.0259 0.0235 0.0024 183 0.0275 0.0250 0.0026 184 0.0284 0.0258 0.0026 185 0.0234 0.0212 0.0022 186 0.0247 0.0224 0.0023 187 0.0280 0.0254 0.0026 188 0.0302 0.0274 0.0028 189 0.0364 0.0331 0.0034 190 0.0411 0.0373 0.0038 191 0.0588 0.0533 0.0055 192 0.0809 0.0733 0.0075 193 0.2531 0.0733 0.1797 194 0.0479 0.0434 0.0044 195 0.0330 0.0299 0.0031 196 0.0262 0.0238 0.0024 197 0.0295 0.0268 0.0027 198 0.0267 0.0242 0.0025 199 0.0245 0.0222 0.0023 200 0.0228 0.0207 0.0021 201 0.0215 0.0195 0.0020 202 0.0203 0.0184 0.0019 203 0.0194 0.0176 0.0018 204 0.0185 0.0168 0.0017 205 0.0178 0.0161 0.0016 206 0.0171 0.0155 0.0016 207 0.0165 0.0150 0.0015 208 0.0160 0.0145 0.0015 209 0.0155 0.0141 0.0014 210 0.0151 0.0137 0.0014 211 0.0147 0.0133 0.0014 212 0.0143 0.0130 0.0013 213 0.0140 0.0127 0.0013 214 0.0137 0.0124 0.0013 215 0.0134 0.0121 0.0012 216 0.0131 0.0119 0.0012 217 0.0106 0.0096 0.0010 218 0.0104 0.0094 0.0010 219 0.0101 0.0092 0.0009 220 0.0099 0.0090 0.0009 221 0.0097 0.0088 0.0009 222 0.0095 0.0087 0.0009 223 0.0094 0.0085 0.0009 224 0.0092 0.0083 0.0009 225 0.0090 0.0082 0.0008 226 0.0089 0.0081 0.0008 227 0.0087 0.0079 0.0008 228 0.0086 0.0078 0.0008 229 0.0085 0.0077 0.0008 230 0.0083 0.0076 0.0008 231 0.0082 0.0074 0.0008 232 0.0081 0.0073 0.0007 233 0.0080 0.0072 0.0007 234 0.0079 0.0071 0.0007 235 0.0078 0.0070 0.0007 236 0.0076 0.0069 0.0007 237 0.0076 0.0068 0.0007 238 0.0075 0.0068 0.0007 239 0.0074 0.0067 0.0007 240 0.0073 0.0066 0.0007 241 0.0072 0.0065 0.0007 242 0.0071 0.0064 0.0007 243 0.0070 0.0064 0.0007 244 0.0069 0.0063 0.0006 245 0.0069 0.0062 0.0006 246 0.0068 0.0062 0.0006 247 0.0067 0.0061 0.0006 248 0.0067 0.0060 0.0006 249 0.0066 0.0060 0.0006 250 0.0065 0.0059 0.0006 251 0.0065 0.0059 0.0006 252 0.0064 0.0058 0.0006 253 0.0063 0.0058 0.0006 254 0.0063 0.0057 0.0006 255 0.0062 0.0056 0.0006 256 0.0062 0.0056 0.0006 257 0.0061 0.0055 0.0006 258 0.0061 0.0055 0.0006 259 0.0060 0.0055 0.0006 260 0.0060 0.0054 0.0006 261 0.0059 0.0054 0.0005 262 0.0059 0.0053 0.0005 263 0.0058 0.0053 0.0005 264 0.0058 0.0052 0.0005 265 0.0057 0.0052 0.0005 266 0.0057 0.0052 0.0005 267 0.0056 0.0051 0.0005 268 0.0056 0.0051 0.0005 269 0.0056 0.0050 0.0005 270 0.0055 0.0050 0.0005 271 0.0055 0.0050 0.0005 272 0.0054 0.0049 0.0005 273 0.0054 0.0049 0.0005 274 0.0054 0.0049 0.0005 275 0.0053 0.0048 0.0005 276 0.0053 0.0048 0.0005 277 0.0052 0.0048 0.0005 278 0.0052 0.0047 0.0005 279 0.0052 0.0047 0.0005 280 0.0051 0.0047 0.0005 281 0.0051 0.0046 0.0005 282 0.0051 0.0046 0.0005 283 0.0050 0.0046 0.0005 284 0.0050 0.0046 0.0005 285 0.0050 0.0045 0.0005 286 0.0050 0.0045 0.0005 287 0.0049 0.0045 0.0005 288 0.0049 0.0044 0.0005 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 2.76(In) Total effective rainfall = 0.45(In) Peak flow rate in flood hydrograph = 5.49(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 2.5 5.0 7.5 10.0 ----------------------------------------------------------------------- 0+ 5 0.0000 0.00 Q | | | | 0+10 0.0001 0.01 Q | | | | 0+15 0.0002 0.02 Q | | | | 0+20 0.0004 0.03 Q | | | | 0+25 0.0006 0.04 Q | | | | 0+30 0.0009 0.04 Q | | | | 0+35 0.0012 0.04 Q | | | | 0+40 0.0015 0.04 Q | | | | 0+45 0.0018 0.05 Q | | | | 0+50 0.0022 0.05 Q | | | | 0+55 0.0025 0.05 Q | | | | 1+ 0 0.0028 0.05 Q | | | | 1+ 5 0.0031 0.05 Q | | | | 1+10 0.0034 0.05 Q | | | | 1+15 0.0038 0.05 Q | | | | 1+20 0.0041 0.05 Q | | | | 1+25 0.0044 0.05 Q | | | | 1+30 0.0047 0.05 Q | | | | 1+35 0.0050 0.05 Q | | | | 1+40 0.0054 0.05 Q | | | | 1+45 0.0057 0.05 Q | | | | 1+50 0.0060 0.05 Q | | | | 1+55 0.0064 0.05 Q | | | | 2+ 0 0.0067 0.05 Q | | | | 2+ 5 0.0070 0.05 Q | | | | 2+10 0.0073 0.05 Q | | | | 2+15 0.0077 0.05 Q | | | | 2+20 0.0080 0.05 QV | | | | 2+25 0.0083 0.05 QV | | | | 2+30 0.0087 0.05 QV | | | | 2+35 0.0090 0.05 QV | | | | 2+40 0.0094 0.05 QV | | | | 2+45 0.0097 0.05 QV | | | | 2+50 0.0100 0.05 QV | | | | 2+55 0.0104 0.05 QV | | | | 3+ 0 0.0107 0.05 QV | | | | 3+ 5 0.0111 0.05 QV | | | | 3+10 0.0114 0.05 QV | | | | 3+15 0.0118 0.05 QV | | | | 3+20 0.0121 0.05 QV | | | | 3+25 0.0125 0.05 QV | | | | 3+30 0.0128 0.05 QV | | | | 3+35 0.0132 0.05 QV | | | | 3+40 0.0135 0.05 QV | | | | 3+45 0.0139 0.05 QV | | | | 3+50 0.0142 0.05 QV | | | | 3+55 0.0146 0.05 QV | | | | 4+ 0 0.0149 0.05 QV | | | | 4+ 5 0.0153 0.05 QV | | | | 4+10 0.0157 0.05 Q V | | | | 4+15 0.0160 0.05 Q V | | | | 4+20 0.0164 0.05 Q V | | | | 4+25 0.0168 0.05 Q V | | | | 4+30 0.0171 0.05 Q V | | | | 4+35 0.0175 0.05 Q V | | | | 4+40 0.0179 0.05 Q V | | | | 4+45 0.0182 0.05 Q V | | | | 4+50 0.0186 0.05 Q V | | | | 4+55 0.0190 0.05 Q V | | | | 5+ 0 0.0194 0.05 Q V | | | | 5+ 5 0.0197 0.05 Q V | | | | 5+10 0.0201 0.06 Q V | | | | 5+15 0.0205 0.06 Q V | | | | 5+20 0.0209 0.06 Q V | | | | 5+25 0.0213 0.06 Q V | | | | 5+30 0.0216 0.06 Q V | | | | 5+35 0.0220 0.06 Q V | | | | 5+40 0.0224 0.06 Q V | | | | 5+45 0.0228 0.06 Q V | | | | 5+50 0.0232 0.06 Q V | | | | 5+55 0.0236 0.06 Q V | | | | 6+ 0 0.0240 0.06 Q V | | | | 6+ 5 0.0244 0.06 Q V | | | | 6+10 0.0248 0.06 Q V | | | | 6+15 0.0252 0.06 Q V | | | | 6+20 0.0256 0.06 Q V | | | | 6+25 0.0260 0.06 Q V | | | | 6+30 0.0264 0.06 Q V | | | | 6+35 0.0268 0.06 Q V | | | | 6+40 0.0272 0.06 Q V | | | | 6+45 0.0276 0.06 Q V | | | | 6+50 0.0281 0.06 Q V | | | | 6+55 0.0285 0.06 Q V | | | | 7+ 0 0.0289 0.06 Q V | | | | 7+ 5 0.0293 0.06 Q V | | | | 7+10 0.0297 0.06 Q V | | | | 7+15 0.0302 0.06 Q V | | | | 7+20 0.0306 0.06 Q V | | | | 7+25 0.0310 0.06 Q V | | | | 7+30 0.0315 0.06 Q V | | | | 7+35 0.0319 0.06 Q V | | | | 7+40 0.0323 0.06 Q V | | | | 7+45 0.0328 0.06 Q V | | | | 7+50 0.0332 0.06 Q V | | | | 7+55 0.0337 0.06 Q V | | | | 8+ 0 0.0341 0.06 Q V | | | | 8+ 5 0.0346 0.07 Q V | | | | 8+10 0.0350 0.07 Q V | | | | 8+15 0.0355 0.07 Q V | | | | 8+20 0.0359 0.07 Q V | | | | 8+25 0.0364 0.07 Q V | | | | 8+30 0.0368 0.07 Q V | | | | 8+35 0.0373 0.07 Q V | | | | 8+40 0.0378 0.07 Q V | | | | 8+45 0.0383 0.07 Q V | | | | 8+50 0.0387 0.07 Q V | | | | 8+55 0.0392 0.07 Q V | | | | 9+ 0 0.0397 0.07 Q V | | | | 9+ 5 0.0402 0.07 Q V | | | | 9+10 0.0407 0.07 Q V | | | | 9+15 0.0411 0.07 Q V | | | | 9+20 0.0416 0.07 Q V | | | | 9+25 0.0421 0.07 Q V | | | | 9+30 0.0426 0.07 Q V | | | | 9+35 0.0431 0.07 Q V | | | | 9+40 0.0437 0.07 Q V | | | | 9+45 0.0442 0.07 Q V | | | | 9+50 0.0447 0.07 Q V | | | | 9+55 0.0452 0.08 Q V | | | | 10+ 0 0.0457 0.08 Q V | | | | 10+ 5 0.0462 0.08 Q V | | | | 10+10 0.0468 0.08 Q V | | | | 10+15 0.0473 0.08 Q V | | | | 10+20 0.0478 0.08 Q V | | | | 10+25 0.0484 0.08 Q V | | | | 10+30 0.0489 0.08 Q V | | | | 10+35 0.0495 0.08 Q V | | | | 10+40 0.0500 0.08 Q V | | | | 10+45 0.0506 0.08 Q V | | | | 10+50 0.0512 0.08 Q V | | | | 10+55 0.0517 0.08 Q V | | | | 11+ 0 0.0523 0.08 Q V | | | | 11+ 5 0.0529 0.08 Q V | | | | 11+10 0.0535 0.09 Q V | | | | 11+15 0.0541 0.09 Q V | | | | 11+20 0.0547 0.09 Q V | | | | 11+25 0.0553 0.09 Q V | | | | 11+30 0.0559 0.09 Q V | | | | 11+35 0.0565 0.09 Q V | | | | 11+40 0.0571 0.09 Q V | | | | 11+45 0.0578 0.09 Q V | | | | 11+50 0.0584 0.09 Q V | | | | 11+55 0.0590 0.09 Q V | | | | 12+ 0 0.0597 0.09 Q V | | | | 12+ 5 0.0603 0.10 Q V | | | | 12+10 0.0610 0.10 Q V | | | | 12+15 0.0617 0.11 Q V | | | | 12+20 0.0625 0.11 Q V | | | | 12+25 0.0633 0.12 Q V | | | | 12+30 0.0641 0.12 Q V | | | | 12+35 0.0650 0.12 Q V | | | | 12+40 0.0658 0.12 Q V | | | | 12+45 0.0667 0.13 Q V | | | | 12+50 0.0676 0.13 Q V | | | | 12+55 0.0685 0.13 Q V | | | | 13+ 0 0.0694 0.13 Q V | | | | 13+ 5 0.0703 0.13 Q V| | | | 13+10 0.0712 0.13 Q V| | | | 13+15 0.0721 0.13 Q V| | | | 13+20 0.0730 0.14 Q V| | | | 13+25 0.0740 0.14 Q V| | | | 13+30 0.0750 0.14 Q V| | | | 13+35 0.0759 0.14 Q V| | | | 13+40 0.0769 0.14 Q V| | | | 13+45 0.0779 0.15 Q V | | | 13+50 0.0790 0.15 Q V | | | 13+55 0.0800 0.15 Q V | | | 14+ 0 0.0811 0.15 Q V | | | 14+ 5 0.0821 0.16 Q V | | | 14+10 0.0832 0.16 Q V | | | 14+15 0.0844 0.16 Q V | | | 14+20 0.0855 0.17 Q V | | | 14+25 0.0867 0.17 Q |V | | | 14+30 0.0879 0.17 Q |V | | | 14+35 0.0891 0.18 Q |V | | | 14+40 0.0903 0.18 Q |V | | | 14+45 0.0916 0.19 Q |V | | | 14+50 0.0929 0.19 Q |V | | | 14+55 0.0942 0.20 Q | V | | | 15+ 0 0.0956 0.20 Q | V | | | 15+ 5 0.0971 0.21 Q | V | | | 15+10 0.0985 0.21 Q | V | | | 15+15 0.1001 0.22 Q | V | | | 15+20 0.1017 0.23 Q | V | | | 15+25 0.1033 0.24 Q | V | | | 15+30 0.1050 0.24 Q | V | | | 15+35 0.1067 0.24 Q | V | | | 15+40 0.1083 0.24 Q | V | | | 15+45 0.1100 0.25 Q | V | | | 15+50 0.1118 0.27 |Q | V | | | 15+55 0.1139 0.30 |Q | V | | | 16+ 0 0.1163 0.36 |Q | V | | | 16+ 5 0.1222 0.85 | Q | V | | | 16+10 0.1403 2.63 | Q V | | | 16+15 0.1717 4.55 | | Q | V | | 16+20 0.2095 5.49 | | |Q V | | 16+25 0.2336 3.50 | | Q | V| | 16+30 0.2464 1.86 | Q | | |V | 16+35 0.2534 1.02 | Q | | | V | 16+40 0.2570 0.52 | Q | | | V | 16+45 0.2594 0.36 |Q | | | V | 16+50 0.2618 0.34 |Q | | | V | 16+55 0.2637 0.27 |Q | | | V | 17+ 0 0.2651 0.20 Q | | | V | 17+ 5 0.2664 0.19 Q | | | V | 17+10 0.2676 0.18 Q | | | V | 17+15 0.2688 0.17 Q | | | V | 17+20 0.2699 0.17 Q | | | V | 17+25 0.2710 0.16 Q | | | V | 17+30 0.2721 0.15 Q | | | V | 17+35 0.2731 0.15 Q | | | V | 17+40 0.2741 0.14 Q | | | V | 17+45 0.2751 0.14 Q | | | V | 17+50 0.2760 0.14 Q | | | V | 17+55 0.2769 0.13 Q | | | V | 18+ 0 0.2778 0.13 Q | | | V | 18+ 5 0.2787 0.13 Q | | | V | 18+10 0.2795 0.12 Q | | | V | 18+15 0.2803 0.11 Q | | | V | 18+20 0.2810 0.11 Q | | | V | 18+25 0.2817 0.10 Q | | | V | 18+30 0.2824 0.10 Q | | | V | 18+35 0.2830 0.09 Q | | | V | 18+40 0.2836 0.09 Q | | | V | 18+45 0.2842 0.09 Q | | | V | 18+50 0.2848 0.09 Q | | | V | 18+55 0.2854 0.08 Q | | | V | 19+ 0 0.2860 0.08 Q | | | V | 19+ 5 0.2866 0.08 Q | | | V | 19+10 0.2871 0.08 Q | | | V | 19+15 0.2877 0.08 Q | | | V | 19+20 0.2882 0.08 Q | | | V | 19+25 0.2887 0.08 Q | | | V | 19+30 0.2893 0.08 Q | | | V | 19+35 0.2898 0.07 Q | | | V | 19+40 0.2903 0.07 Q | | | V | 19+45 0.2908 0.07 Q | | | V | 19+50 0.2913 0.07 Q | | | V | 19+55 0.2918 0.07 Q | | | V | 20+ 0 0.2922 0.07 Q | | | V | 20+ 5 0.2927 0.07 Q | | | V | 20+10 0.2932 0.07 Q | | | V | 20+15 0.2936 0.07 Q | | | V | 20+20 0.2941 0.07 Q | | | V | 20+25 0.2946 0.07 Q | | | V | 20+30 0.2950 0.06 Q | | | V | 20+35 0.2954 0.06 Q | | | V | 20+40 0.2959 0.06 Q | | | V | 20+45 0.2963 0.06 Q | | | V | 20+50 0.2967 0.06 Q | | | V | 20+55 0.2972 0.06 Q | | | V | 21+ 0 0.2976 0.06 Q | | | V | 21+ 5 0.2980 0.06 Q | | | V | 21+10 0.2984 0.06 Q | | | V | 21+15 0.2988 0.06 Q | | | V | 21+20 0.2992 0.06 Q | | | V | 21+25 0.2996 0.06 Q | | | V | 21+30 0.3000 0.06 Q | | | V | 21+35 0.3004 0.06 Q | | | V | 21+40 0.3008 0.06 Q | | | V | 21+45 0.3012 0.06 Q | | | V | 21+50 0.3016 0.06 Q | | | V | 21+55 0.3019 0.06 Q | | | V | 22+ 0 0.3023 0.05 Q | | | V | 22+ 5 0.3027 0.05 Q | | | V | 22+10 0.3031 0.05 Q | | | V | 22+15 0.3034 0.05 Q | | | V | 22+20 0.3038 0.05 Q | | | V| 22+25 0.3042 0.05 Q | | | V| 22+30 0.3045 0.05 Q | | | V| 22+35 0.3049 0.05 Q | | | V| 22+40 0.3052 0.05 Q | | | V| 22+45 0.3056 0.05 Q | | | V| 22+50 0.3059 0.05 Q | | | V| 22+55 0.3063 0.05 Q | | | V| 23+ 0 0.3066 0.05 Q | | | V| 23+ 5 0.3069 0.05 Q | | | V| 23+10 0.3073 0.05 Q | | | V| 23+15 0.3076 0.05 Q | | | V| 23+20 0.3080 0.05 Q | | | V| 23+25 0.3083 0.05 Q | | | V| 23+30 0.3086 0.05 Q | | | V| 23+35 0.3089 0.05 Q | | | V| 23+40 0.3093 0.05 Q | | | V| 23+45 0.3096 0.05 Q | | | V| 23+50 0.3099 0.05 Q | | | V| 23+55 0.3102 0.05 Q | | | V| 24+ 0 0.3105 0.05 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.3 UNIT HYDROGRAPH ANALYSIS PRE-DEVELOPMENT CONDITIONS – 25 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 25 YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 25 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 10 29.19 1 0.82 -------------------------------------------------------------------- Rainfall data for year 10 29.19 6 2.07 -------------------------------------------------------------------- Rainfall data for year 10 29.19 24 3.81 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 29.19 1.000 0.978 0.600 0.587 Area-averaged adjusted loss rate Fm (In/Hr) = 0.587 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 25-year pre-condition flow rates shall be calculated using 10-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 17.51 0.600 32.0 32.0 19.05 0.000 11.68 0.400 98.0 98.0 0.20 0.938 Area-averaged catchment yield fraction, Y = 0.375 Area-averaged low loss fraction, Yb = 0.625 User entry of time of concentration = 0.234 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 29.19(Ac.) Catchment Lag time = 0.187 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 44.5728 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.587(In/Hr) Average low loss rate fraction (Yb) = 0.625 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.305(In) Computed peak 30-minute rainfall = 0.624(In) Specified peak 1-hour rainfall = 0.823(In) Computed peak 3-hour rainfall = 1.449(In) Specified peak 6-hour rainfall = 2.070(In) Specified peak 24-hour rainfall = 3.810(In) Rainfall depth area reduction factors: Using a total area of 29.19(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.304(In) 30-minute factor = 0.999 Adjusted rainfall = 0.623(In) 1-hour factor = 0.999 Adjusted rainfall = 0.822(In) 3-hour factor = 1.000 Adjusted rainfall = 1.449(In) 6-hour factor = 1.000 Adjusted rainfall = 2.070(In) 24-hour factor = 1.000 Adjusted rainfall = 3.810(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 353.02 (CFS)) 1 3.685 13.008 2 24.015 71.770 3 59.263 124.431 4 84.366 88.618 5 94.554 35.962 6 98.081 12.451 7 99.015 3.299 8 100.000 1.649 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3042 0.3042 2 0.4014 0.0972 3 0.4720 0.0707 4 0.5296 0.0576 5 0.5791 0.0494 6 0.6229 0.0438 7 0.6625 0.0396 8 0.6988 0.0363 9 0.7325 0.0337 10 0.7641 0.0315 11 0.7938 0.0297 12 0.8219 0.0281 13 0.8565 0.0346 14 0.8899 0.0334 15 0.9221 0.0322 16 0.9534 0.0312 17 0.9836 0.0303 18 1.0131 0.0294 19 1.0417 0.0287 20 1.0697 0.0279 21 1.0969 0.0273 22 1.1236 0.0266 23 1.1496 0.0261 24 1.1752 0.0255 25 1.2002 0.0250 26 1.2247 0.0245 27 1.2488 0.0241 28 1.2724 0.0236 29 1.2957 0.0232 30 1.3185 0.0229 31 1.3410 0.0225 32 1.3632 0.0221 33 1.3850 0.0218 34 1.4065 0.0215 35 1.4277 0.0212 36 1.4485 0.0209 37 1.4691 0.0206 38 1.4894 0.0203 39 1.5095 0.0201 40 1.5293 0.0198 41 1.5489 0.0196 42 1.5682 0.0193 43 1.5873 0.0191 44 1.6062 0.0189 45 1.6249 0.0187 46 1.6434 0.0185 47 1.6617 0.0183 48 1.6798 0.0181 49 1.6978 0.0179 50 1.7155 0.0178 51 1.7331 0.0176 52 1.7505 0.0174 53 1.7678 0.0173 54 1.7848 0.0171 55 1.8018 0.0169 56 1.8186 0.0168 57 1.8352 0.0166 58 1.8517 0.0165 59 1.8681 0.0164 60 1.8843 0.0162 61 1.9005 0.0161 62 1.9164 0.0160 63 1.9323 0.0159 64 1.9480 0.0157 65 1.9636 0.0156 66 1.9791 0.0155 67 1.9945 0.0154 68 2.0098 0.0153 69 2.0249 0.0152 70 2.0400 0.0151 71 2.0550 0.0150 72 2.0698 0.0149 73 2.0824 0.0126 74 2.0949 0.0125 75 2.1073 0.0124 76 2.1197 0.0123 77 2.1319 0.0122 78 2.1440 0.0121 79 2.1561 0.0121 80 2.1681 0.0120 81 2.1799 0.0119 82 2.1917 0.0118 83 2.2035 0.0117 84 2.2151 0.0116 85 2.2267 0.0116 86 2.2382 0.0115 87 2.2496 0.0114 88 2.2609 0.0113 89 2.2722 0.0113 90 2.2834 0.0112 91 2.2945 0.0111 92 2.3056 0.0111 93 2.3166 0.0110 94 2.3275 0.0109 95 2.3384 0.0109 96 2.3492 0.0108 97 2.3599 0.0107 98 2.3706 0.0107 99 2.3812 0.0106 100 2.3918 0.0106 101 2.4023 0.0105 102 2.4127 0.0104 103 2.4231 0.0104 104 2.4334 0.0103 105 2.4437 0.0103 106 2.4539 0.0102 107 2.4641 0.0102 108 2.4742 0.0101 109 2.4842 0.0101 110 2.4942 0.0100 111 2.5042 0.0100 112 2.5141 0.0099 113 2.5240 0.0099 114 2.5338 0.0098 115 2.5435 0.0098 116 2.5532 0.0097 117 2.5629 0.0097 118 2.5725 0.0096 119 2.5821 0.0096 120 2.5916 0.0095 121 2.6011 0.0095 122 2.6105 0.0094 123 2.6199 0.0094 124 2.6293 0.0094 125 2.6386 0.0093 126 2.6479 0.0093 127 2.6571 0.0092 128 2.6663 0.0092 129 2.6754 0.0091 130 2.6845 0.0091 131 2.6936 0.0091 132 2.7026 0.0090 133 2.7116 0.0090 134 2.7206 0.0090 135 2.7295 0.0089 136 2.7384 0.0089 137 2.7472 0.0088 138 2.7560 0.0088 139 2.7648 0.0088 140 2.7735 0.0087 141 2.7822 0.0087 142 2.7909 0.0087 143 2.7995 0.0086 144 2.8081 0.0086 145 2.8167 0.0086 146 2.8252 0.0085 147 2.8337 0.0085 148 2.8422 0.0085 149 2.8507 0.0084 150 2.8591 0.0084 151 2.8674 0.0084 152 2.8758 0.0083 153 2.8841 0.0083 154 2.8924 0.0083 155 2.9006 0.0083 156 2.9088 0.0082 157 2.9170 0.0082 158 2.9252 0.0082 159 2.9333 0.0081 160 2.9414 0.0081 161 2.9495 0.0081 162 2.9576 0.0080 163 2.9656 0.0080 164 2.9736 0.0080 165 2.9815 0.0080 166 2.9895 0.0079 167 2.9974 0.0079 168 3.0053 0.0079 169 3.0131 0.0079 170 3.0210 0.0078 171 3.0288 0.0078 172 3.0366 0.0078 173 3.0443 0.0078 174 3.0521 0.0077 175 3.0598 0.0077 176 3.0674 0.0077 177 3.0751 0.0077 178 3.0827 0.0076 179 3.0903 0.0076 180 3.0979 0.0076 181 3.1055 0.0076 182 3.1130 0.0075 183 3.1206 0.0075 184 3.1280 0.0075 185 3.1355 0.0075 186 3.1430 0.0074 187 3.1504 0.0074 188 3.1578 0.0074 189 3.1652 0.0074 190 3.1725 0.0074 191 3.1799 0.0073 192 3.1872 0.0073 193 3.1945 0.0073 194 3.2018 0.0073 195 3.2090 0.0073 196 3.2162 0.0072 197 3.2235 0.0072 198 3.2306 0.0072 199 3.2378 0.0072 200 3.2450 0.0072 201 3.2521 0.0071 202 3.2592 0.0071 203 3.2663 0.0071 204 3.2734 0.0071 205 3.2804 0.0071 206 3.2875 0.0070 207 3.2945 0.0070 208 3.3015 0.0070 209 3.3084 0.0070 210 3.3154 0.0070 211 3.3223 0.0069 212 3.3293 0.0069 213 3.3362 0.0069 214 3.3431 0.0069 215 3.3499 0.0069 216 3.3568 0.0068 217 3.3636 0.0068 218 3.3704 0.0068 219 3.3772 0.0068 220 3.3840 0.0068 221 3.3907 0.0068 222 3.3975 0.0067 223 3.4042 0.0067 224 3.4109 0.0067 225 3.4176 0.0067 226 3.4243 0.0067 227 3.4310 0.0067 228 3.4376 0.0066 229 3.4442 0.0066 230 3.4508 0.0066 231 3.4574 0.0066 232 3.4640 0.0066 233 3.4706 0.0066 234 3.4771 0.0065 235 3.4837 0.0065 236 3.4902 0.0065 237 3.4967 0.0065 238 3.5032 0.0065 239 3.5096 0.0065 240 3.5161 0.0065 241 3.5225 0.0064 242 3.5290 0.0064 243 3.5354 0.0064 244 3.5418 0.0064 245 3.5481 0.0064 246 3.5545 0.0064 247 3.5609 0.0064 248 3.5672 0.0063 249 3.5735 0.0063 250 3.5798 0.0063 251 3.5861 0.0063 252 3.5924 0.0063 253 3.5987 0.0063 254 3.6049 0.0063 255 3.6112 0.0062 256 3.6174 0.0062 257 3.6236 0.0062 258 3.6298 0.0062 259 3.6360 0.0062 260 3.6422 0.0062 261 3.6483 0.0062 262 3.6545 0.0061 263 3.6606 0.0061 264 3.6667 0.0061 265 3.6728 0.0061 266 3.6789 0.0061 267 3.6850 0.0061 268 3.6911 0.0061 269 3.6971 0.0061 270 3.7032 0.0060 271 3.7092 0.0060 272 3.7152 0.0060 273 3.7212 0.0060 274 3.7272 0.0060 275 3.7332 0.0060 276 3.7392 0.0060 277 3.7451 0.0060 278 3.7511 0.0059 279 3.7570 0.0059 280 3.7629 0.0059 281 3.7688 0.0059 282 3.7747 0.0059 283 3.7806 0.0059 284 3.7865 0.0059 285 3.7923 0.0059 286 3.7982 0.0059 287 3.8040 0.0058 288 3.8099 0.0058 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0058 0.0036 0.0022 2 0.0058 0.0036 0.0022 3 0.0059 0.0037 0.0022 4 0.0059 0.0037 0.0022 5 0.0059 0.0037 0.0022 6 0.0059 0.0037 0.0022 7 0.0059 0.0037 0.0022 8 0.0059 0.0037 0.0022 9 0.0060 0.0037 0.0022 10 0.0060 0.0037 0.0022 11 0.0060 0.0038 0.0023 12 0.0060 0.0038 0.0023 13 0.0060 0.0038 0.0023 14 0.0061 0.0038 0.0023 15 0.0061 0.0038 0.0023 16 0.0061 0.0038 0.0023 17 0.0061 0.0038 0.0023 18 0.0061 0.0038 0.0023 19 0.0062 0.0038 0.0023 20 0.0062 0.0039 0.0023 21 0.0062 0.0039 0.0023 22 0.0062 0.0039 0.0023 23 0.0062 0.0039 0.0023 24 0.0063 0.0039 0.0023 25 0.0063 0.0039 0.0024 26 0.0063 0.0039 0.0024 27 0.0063 0.0039 0.0024 28 0.0063 0.0040 0.0024 29 0.0064 0.0040 0.0024 30 0.0064 0.0040 0.0024 31 0.0064 0.0040 0.0024 32 0.0064 0.0040 0.0024 33 0.0065 0.0040 0.0024 34 0.0065 0.0040 0.0024 35 0.0065 0.0041 0.0024 36 0.0065 0.0041 0.0024 37 0.0065 0.0041 0.0025 38 0.0066 0.0041 0.0025 39 0.0066 0.0041 0.0025 40 0.0066 0.0041 0.0025 41 0.0066 0.0041 0.0025 42 0.0067 0.0042 0.0025 43 0.0067 0.0042 0.0025 44 0.0067 0.0042 0.0025 45 0.0067 0.0042 0.0025 46 0.0068 0.0042 0.0025 47 0.0068 0.0042 0.0026 48 0.0068 0.0043 0.0026 49 0.0068 0.0043 0.0026 50 0.0069 0.0043 0.0026 51 0.0069 0.0043 0.0026 52 0.0069 0.0043 0.0026 53 0.0070 0.0043 0.0026 54 0.0070 0.0044 0.0026 55 0.0070 0.0044 0.0026 56 0.0070 0.0044 0.0026 57 0.0071 0.0044 0.0027 58 0.0071 0.0044 0.0027 59 0.0071 0.0045 0.0027 60 0.0072 0.0045 0.0027 61 0.0072 0.0045 0.0027 62 0.0072 0.0045 0.0027 63 0.0073 0.0045 0.0027 64 0.0073 0.0045 0.0027 65 0.0073 0.0046 0.0027 66 0.0073 0.0046 0.0028 67 0.0074 0.0046 0.0028 68 0.0074 0.0046 0.0028 69 0.0074 0.0047 0.0028 70 0.0075 0.0047 0.0028 71 0.0075 0.0047 0.0028 72 0.0075 0.0047 0.0028 73 0.0076 0.0047 0.0028 74 0.0076 0.0048 0.0029 75 0.0077 0.0048 0.0029 76 0.0077 0.0048 0.0029 77 0.0077 0.0048 0.0029 78 0.0078 0.0048 0.0029 79 0.0078 0.0049 0.0029 80 0.0078 0.0049 0.0029 81 0.0079 0.0049 0.0030 82 0.0079 0.0049 0.0030 83 0.0080 0.0050 0.0030 84 0.0080 0.0050 0.0030 85 0.0080 0.0050 0.0030 86 0.0081 0.0050 0.0030 87 0.0081 0.0051 0.0031 88 0.0082 0.0051 0.0031 89 0.0082 0.0051 0.0031 90 0.0083 0.0052 0.0031 91 0.0083 0.0052 0.0031 92 0.0083 0.0052 0.0031 93 0.0084 0.0052 0.0032 94 0.0084 0.0053 0.0032 95 0.0085 0.0053 0.0032 96 0.0085 0.0053 0.0032 97 0.0086 0.0054 0.0032 98 0.0086 0.0054 0.0032 99 0.0087 0.0054 0.0033 100 0.0087 0.0055 0.0033 101 0.0088 0.0055 0.0033 102 0.0088 0.0055 0.0033 103 0.0089 0.0056 0.0033 104 0.0090 0.0056 0.0034 105 0.0090 0.0056 0.0034 106 0.0091 0.0057 0.0034 107 0.0091 0.0057 0.0034 108 0.0092 0.0057 0.0034 109 0.0093 0.0058 0.0035 110 0.0093 0.0058 0.0035 111 0.0094 0.0059 0.0035 112 0.0094 0.0059 0.0035 113 0.0095 0.0060 0.0036 114 0.0096 0.0060 0.0036 115 0.0097 0.0060 0.0036 116 0.0097 0.0061 0.0036 117 0.0098 0.0061 0.0037 118 0.0099 0.0062 0.0037 119 0.0100 0.0062 0.0037 120 0.0100 0.0062 0.0038 121 0.0101 0.0063 0.0038 122 0.0102 0.0063 0.0038 123 0.0103 0.0064 0.0039 124 0.0103 0.0064 0.0039 125 0.0104 0.0065 0.0039 126 0.0105 0.0066 0.0039 127 0.0106 0.0066 0.0040 128 0.0107 0.0067 0.0040 129 0.0108 0.0067 0.0041 130 0.0109 0.0068 0.0041 131 0.0110 0.0069 0.0041 132 0.0111 0.0069 0.0042 133 0.0112 0.0070 0.0042 134 0.0113 0.0070 0.0042 135 0.0114 0.0071 0.0043 136 0.0115 0.0072 0.0043 137 0.0116 0.0073 0.0044 138 0.0117 0.0073 0.0044 139 0.0119 0.0074 0.0045 140 0.0120 0.0075 0.0045 141 0.0121 0.0076 0.0046 142 0.0122 0.0076 0.0046 143 0.0124 0.0078 0.0047 144 0.0125 0.0078 0.0047 145 0.0149 0.0093 0.0056 146 0.0150 0.0093 0.0056 147 0.0152 0.0095 0.0057 148 0.0153 0.0095 0.0057 149 0.0155 0.0097 0.0058 150 0.0156 0.0098 0.0059 151 0.0159 0.0099 0.0060 152 0.0160 0.0100 0.0060 153 0.0162 0.0101 0.0061 154 0.0164 0.0102 0.0061 155 0.0166 0.0104 0.0062 156 0.0168 0.0105 0.0063 157 0.0171 0.0107 0.0064 158 0.0173 0.0108 0.0065 159 0.0176 0.0110 0.0066 160 0.0178 0.0111 0.0067 161 0.0181 0.0113 0.0068 162 0.0183 0.0114 0.0069 163 0.0187 0.0117 0.0070 164 0.0189 0.0118 0.0071 165 0.0193 0.0121 0.0073 166 0.0196 0.0122 0.0073 167 0.0201 0.0125 0.0075 168 0.0203 0.0127 0.0076 169 0.0209 0.0131 0.0078 170 0.0212 0.0132 0.0080 171 0.0218 0.0136 0.0082 172 0.0221 0.0138 0.0083 173 0.0229 0.0143 0.0086 174 0.0232 0.0145 0.0087 175 0.0241 0.0150 0.0090 176 0.0245 0.0153 0.0092 177 0.0255 0.0159 0.0096 178 0.0261 0.0163 0.0098 179 0.0273 0.0170 0.0102 180 0.0279 0.0174 0.0105 181 0.0294 0.0184 0.0110 182 0.0303 0.0189 0.0114 183 0.0322 0.0201 0.0121 184 0.0334 0.0208 0.0125 185 0.0281 0.0176 0.0106 186 0.0297 0.0185 0.0111 187 0.0337 0.0211 0.0127 188 0.0363 0.0227 0.0136 189 0.0438 0.0274 0.0164 190 0.0494 0.0309 0.0186 191 0.0707 0.0441 0.0265 192 0.0972 0.0489 0.0483 193 0.3042 0.0489 0.2553 194 0.0576 0.0360 0.0216 195 0.0396 0.0247 0.0149 196 0.0315 0.0197 0.0118 197 0.0346 0.0216 0.0130 198 0.0312 0.0195 0.0117 199 0.0287 0.0179 0.0108 200 0.0266 0.0166 0.0100 201 0.0250 0.0156 0.0094 202 0.0236 0.0148 0.0089 203 0.0225 0.0140 0.0084 204 0.0215 0.0134 0.0081 205 0.0206 0.0129 0.0077 206 0.0198 0.0124 0.0074 207 0.0191 0.0119 0.0072 208 0.0185 0.0116 0.0069 209 0.0179 0.0112 0.0067 210 0.0174 0.0109 0.0065 211 0.0169 0.0106 0.0064 212 0.0165 0.0103 0.0062 213 0.0161 0.0101 0.0060 214 0.0157 0.0098 0.0059 215 0.0154 0.0096 0.0058 216 0.0151 0.0094 0.0057 217 0.0126 0.0079 0.0047 218 0.0123 0.0077 0.0046 219 0.0121 0.0075 0.0045 220 0.0118 0.0074 0.0044 221 0.0116 0.0072 0.0043 222 0.0113 0.0071 0.0043 223 0.0111 0.0070 0.0042 224 0.0109 0.0068 0.0041 225 0.0107 0.0067 0.0040 226 0.0106 0.0066 0.0040 227 0.0104 0.0065 0.0039 228 0.0102 0.0064 0.0038 229 0.0101 0.0063 0.0038 230 0.0099 0.0062 0.0037 231 0.0098 0.0061 0.0037 232 0.0096 0.0060 0.0036 233 0.0095 0.0059 0.0036 234 0.0094 0.0058 0.0035 235 0.0092 0.0058 0.0035 236 0.0091 0.0057 0.0034 237 0.0090 0.0056 0.0034 238 0.0089 0.0055 0.0033 239 0.0088 0.0055 0.0033 240 0.0087 0.0054 0.0033 241 0.0086 0.0054 0.0032 242 0.0085 0.0053 0.0032 243 0.0084 0.0052 0.0031 244 0.0083 0.0052 0.0031 245 0.0082 0.0051 0.0031 246 0.0081 0.0051 0.0030 247 0.0080 0.0050 0.0030 248 0.0079 0.0050 0.0030 249 0.0079 0.0049 0.0030 250 0.0078 0.0049 0.0029 251 0.0077 0.0048 0.0029 252 0.0076 0.0048 0.0029 253 0.0076 0.0047 0.0028 254 0.0075 0.0047 0.0028 255 0.0074 0.0046 0.0028 256 0.0074 0.0046 0.0028 257 0.0073 0.0046 0.0027 258 0.0072 0.0045 0.0027 259 0.0072 0.0045 0.0027 260 0.0071 0.0044 0.0027 261 0.0071 0.0044 0.0026 262 0.0070 0.0044 0.0026 263 0.0069 0.0043 0.0026 264 0.0069 0.0043 0.0026 265 0.0068 0.0043 0.0026 266 0.0068 0.0042 0.0025 267 0.0067 0.0042 0.0025 268 0.0067 0.0042 0.0025 269 0.0066 0.0041 0.0025 270 0.0066 0.0041 0.0025 271 0.0065 0.0041 0.0025 272 0.0065 0.0041 0.0024 273 0.0064 0.0040 0.0024 274 0.0064 0.0040 0.0024 275 0.0064 0.0040 0.0024 276 0.0063 0.0039 0.0024 277 0.0063 0.0039 0.0024 278 0.0062 0.0039 0.0023 279 0.0062 0.0039 0.0023 280 0.0061 0.0038 0.0023 281 0.0061 0.0038 0.0023 282 0.0061 0.0038 0.0023 283 0.0060 0.0038 0.0023 284 0.0060 0.0037 0.0022 285 0.0060 0.0037 0.0022 286 0.0059 0.0037 0.0022 287 0.0059 0.0037 0.0022 288 0.0059 0.0037 0.0022 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 2.23(In) Total effective rainfall = 1.58(In) Peak flow rate in flood hydrograph = 39.05(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 10.0 20.0 30.0 40.0 ----------------------------------------------------------------------- 0+ 5 0.0002 0.03 Q | | | | 0+10 0.0015 0.19 Q | | | | 0+15 0.0046 0.46 Q | | | | 0+20 0.0091 0.65 Q | | | | 0+25 0.0142 0.73 Q | | | | 0+30 0.0194 0.76 Q | | | | 0+35 0.0248 0.77 Q | | | | 0+40 0.0301 0.78 Q | | | | 0+45 0.0355 0.78 Q | | | | 0+50 0.0409 0.78 Q | | | | 0+55 0.0463 0.79 Q | | | | 1+ 0 0.0517 0.79 Q | | | | 1+ 5 0.0572 0.79 Q | | | | 1+10 0.0626 0.79 Q | | | | 1+15 0.0681 0.80 Q | | | | 1+20 0.0736 0.80 Q | | | | 1+25 0.0791 0.80 Q | | | | 1+30 0.0847 0.80 Q | | | | 1+35 0.0902 0.81 Q | | | | 1+40 0.0958 0.81 QV | | | | 1+45 0.1013 0.81 QV | | | | 1+50 0.1069 0.81 QV | | | | 1+55 0.1126 0.82 QV | | | | 2+ 0 0.1182 0.82 QV | | | | 2+ 5 0.1239 0.82 QV | | | | 2+10 0.1295 0.82 QV | | | | 2+15 0.1352 0.83 QV | | | | 2+20 0.1409 0.83 QV | | | | 2+25 0.1467 0.83 QV | | | | 2+30 0.1524 0.84 QV | | | | 2+35 0.1582 0.84 QV | | | | 2+40 0.1640 0.84 QV | | | | 2+45 0.1698 0.84 QV | | | | 2+50 0.1756 0.85 QV | | | | 2+55 0.1815 0.85 QV | | | | 3+ 0 0.1873 0.85 QV | | | | 3+ 5 0.1932 0.86 Q V | | | | 3+10 0.1991 0.86 Q V | | | | 3+15 0.2051 0.86 Q V | | | | 3+20 0.2110 0.86 Q V | | | | 3+25 0.2170 0.87 Q V | | | | 3+30 0.2230 0.87 Q V | | | | 3+35 0.2290 0.87 Q V | | | | 3+40 0.2351 0.88 Q V | | | | 3+45 0.2411 0.88 Q V | | | | 3+50 0.2472 0.88 Q V | | | | 3+55 0.2533 0.89 Q V | | | | 4+ 0 0.2595 0.89 Q V | | | | 4+ 5 0.2656 0.89 Q V | | | | 4+10 0.2718 0.90 Q V | | | | 4+15 0.2780 0.90 Q V | | | | 4+20 0.2843 0.90 Q V | | | | 4+25 0.2905 0.91 Q V | | | | 4+30 0.2968 0.91 Q V | | | | 4+35 0.3031 0.92 Q V | | | | 4+40 0.3094 0.92 Q V | | | | 4+45 0.3158 0.92 Q V | | | | 4+50 0.3222 0.93 Q V | | | | 4+55 0.3286 0.93 Q V | | | | 5+ 0 0.3350 0.93 Q V | | | | 5+ 5 0.3415 0.94 Q V | | | | 5+10 0.3480 0.94 Q V | | | | 5+15 0.3545 0.95 Q V | | | | 5+20 0.3610 0.95 Q V | | | | 5+25 0.3676 0.95 Q V | | | | 5+30 0.3742 0.96 Q V | | | | 5+35 0.3808 0.96 Q V | | | | 5+40 0.3875 0.97 Q V | | | | 5+45 0.3942 0.97 Q V | | | | 5+50 0.4009 0.98 Q V | | | | 5+55 0.4076 0.98 Q V | | | | 6+ 0 0.4144 0.98 Q V | | | | 6+ 5 0.4212 0.99 Q V | | | | 6+10 0.4280 0.99 Q V | | | | 6+15 0.4349 1.00 Q V | | | | 6+20 0.4418 1.00 |Q V | | | | 6+25 0.4488 1.01 |Q V | | | | 6+30 0.4557 1.01 |Q V | | | | 6+35 0.4627 1.02 |Q V | | | | 6+40 0.4698 1.02 |Q V | | | | 6+45 0.4768 1.03 |Q V | | | | 6+50 0.4839 1.03 |Q V | | | | 6+55 0.4911 1.04 |Q V | | | | 7+ 0 0.4983 1.04 |Q V | | | | 7+ 5 0.5055 1.05 |Q V | | | | 7+10 0.5127 1.05 |Q V | | | | 7+15 0.5200 1.06 |Q V | | | | 7+20 0.5274 1.06 |Q V | | | | 7+25 0.5347 1.07 |Q V | | | | 7+30 0.5421 1.08 |Q V | | | | 7+35 0.5496 1.08 |Q V | | | | 7+40 0.5570 1.09 |Q V | | | | 7+45 0.5646 1.09 |Q V | | | | 7+50 0.5721 1.10 |Q V | | | | 7+55 0.5798 1.10 |Q V | | | | 8+ 0 0.5874 1.11 |Q V | | | | 8+ 5 0.5951 1.12 |Q V | | | | 8+10 0.6028 1.12 |Q V | | | | 8+15 0.6106 1.13 |Q V | | | | 8+20 0.6185 1.14 |Q V | | | | 8+25 0.6263 1.14 |Q V | | | | 8+30 0.6343 1.15 |Q V | | | | 8+35 0.6422 1.16 |Q V | | | | 8+40 0.6503 1.16 |Q V | | | | 8+45 0.6583 1.17 |Q V | | | | 8+50 0.6664 1.18 |Q V | | | | 8+55 0.6746 1.19 |Q V | | | | 9+ 0 0.6828 1.19 |Q V | | | | 9+ 5 0.6911 1.20 |Q V | | | | 9+10 0.6995 1.21 |Q V | | | | 9+15 0.7078 1.22 |Q V | | | | 9+20 0.7163 1.23 |Q V | | | | 9+25 0.7248 1.23 |Q V | | | | 9+30 0.7333 1.24 |Q V | | | | 9+35 0.7420 1.25 |Q V | | | | 9+40 0.7507 1.26 |Q V | | | | 9+45 0.7594 1.27 |Q V | | | | 9+50 0.7682 1.28 |Q V | | | | 9+55 0.7771 1.29 |Q V | | | | 10+ 0 0.7860 1.30 |Q V | | | | 10+ 5 0.7950 1.31 |Q V | | | | 10+10 0.8041 1.32 |Q V | | | | 10+15 0.8132 1.33 |Q V | | | | 10+20 0.8224 1.34 |Q V | | | | 10+25 0.8317 1.35 |Q V | | | | 10+30 0.8411 1.36 |Q V | | | | 10+35 0.8505 1.37 |Q V | | | | 10+40 0.8601 1.38 |Q V | | | | 10+45 0.8696 1.39 |Q V| | | | 10+50 0.8793 1.41 |Q V| | | | 10+55 0.8891 1.42 |Q V| | | | 11+ 0 0.8989 1.43 |Q V| | | | 11+ 5 0.9089 1.44 |Q V| | | | 11+10 0.9189 1.46 |Q V| | | | 11+15 0.9290 1.47 |Q V| | | | 11+20 0.9393 1.48 |Q V| | | | 11+25 0.9496 1.50 |Q V| | | | 11+30 0.9600 1.51 |Q V | | | 11+35 0.9705 1.53 |Q V | | | 11+40 0.9811 1.54 |Q V | | | 11+45 0.9919 1.56 |Q V | | | 11+50 1.0027 1.58 |Q V | | | 11+55 1.0137 1.59 |Q V | | | 12+ 0 1.0248 1.61 |Q V | | | 12+ 5 1.0361 1.64 |Q V | | | 12+10 1.0479 1.71 |Q V | | | 12+15 1.0605 1.83 |Q |V | | | 12+20 1.0738 1.93 |Q |V | | | 12+25 1.0874 1.97 |Q |V | | | 12+30 1.1012 2.01 | Q |V | | | 12+35 1.1152 2.03 | Q |V | | | 12+40 1.1293 2.05 | Q |V | | | 12+45 1.1436 2.08 | Q |V | | | 12+50 1.1581 2.10 | Q | V | | | 12+55 1.1728 2.13 | Q | V | | | 13+ 0 1.1876 2.15 | Q | V | | | 13+ 5 1.2026 2.18 | Q | V | | | 13+10 1.2178 2.21 | Q | V | | | 13+15 1.2333 2.24 | Q | V | | | 13+20 1.2489 2.27 | Q | V | | | 13+25 1.2647 2.30 | Q | V | | | 13+30 1.2808 2.34 | Q | V | | | 13+35 1.2971 2.37 | Q | V | | | 13+40 1.3137 2.41 | Q | V | | | 13+45 1.3306 2.45 | Q | V | | | 13+50 1.3477 2.49 | Q | V | | | 13+55 1.3651 2.53 | Q | V | | | 14+ 0 1.3828 2.57 | Q | V | | | 14+ 5 1.4009 2.62 | Q | V | | | 14+10 1.4193 2.67 | Q | V | | | 14+15 1.4381 2.73 | Q | V | | | 14+20 1.4572 2.78 | Q | V | | | 14+25 1.4768 2.85 | Q | V | | | 14+30 1.4969 2.91 | Q | V | | | 14+35 1.5174 2.98 | Q | V | | | 14+40 1.5384 3.05 | Q | V | | | 14+45 1.5600 3.14 | Q | V | | | 14+50 1.5822 3.22 | Q | V | | | 14+55 1.6051 3.32 | Q | V | | | 15+ 0 1.6287 3.42 | Q | V | | | 15+ 5 1.6531 3.54 | Q | V | | | 15+10 1.6783 3.67 | Q | V | | | 15+15 1.7046 3.81 | Q | V | | | 15+20 1.7320 3.98 | Q | V | | | 15+25 1.7604 4.13 | Q | V | | | 15+30 1.7889 4.13 | Q | V | | | 15+35 1.8166 4.02 | Q | V | | | 15+40 1.8445 4.06 | Q | V| | | 15+45 1.8745 4.35 | Q | V| | | 15+50 1.9078 4.83 | Q | V| | | 15+55 1.9462 5.58 | Q | V | | 16+ 0 1.9945 7.00 | Q | V | | 16+ 5 2.0809 12.55 | | Q |V | | 16+10 2.2731 27.90 | | | V Q | | 16+15 2.5421 39.05 | | | V | Q| 16+20 2.7396 28.69 | | | Q | | 16+25 2.8408 14.68 | | Q | V| | 16+30 2.8961 8.04 | Q | | V | 16+35 2.9331 5.37 | Q | | V | 16+40 2.9649 4.62 | Q | | V | 16+45 2.9919 3.92 | Q | | |V | 16+50 3.0169 3.63 | Q | | |V | 16+55 3.0403 3.40 | Q | | |V | 17+ 0 3.0624 3.20 | Q | | |V | 17+ 5 3.0832 3.03 | Q | | | V | 17+10 3.1032 2.89 | Q | | | V | 17+15 3.1222 2.76 | Q | | | V | 17+20 3.1405 2.66 | Q | | | V | 17+25 3.1581 2.56 | Q | | | V | 17+30 3.1751 2.47 | Q | | | V | 17+35 3.1916 2.39 | Q | | | V | 17+40 3.2076 2.32 | Q | | | V | 17+45 3.2232 2.26 | Q | | | V | 17+50 3.2383 2.20 | Q | | | V | 17+55 3.2531 2.14 | Q | | | V | 18+ 0 3.2675 2.09 | Q | | | V | 18+ 5 3.2815 2.04 | Q | | | V | 18+10 3.2948 1.93 |Q | | | V | 18+15 3.3072 1.79 |Q | | | V | 18+20 3.3188 1.68 |Q | | | V | 18+25 3.3299 1.62 |Q | | | V | 18+30 3.3407 1.57 |Q | | | V | 18+35 3.3513 1.54 |Q | | | V | 18+40 3.3617 1.51 |Q | | | V | 18+45 3.3719 1.48 |Q | | | V | 18+50 3.3819 1.45 |Q | | | V | 18+55 3.3917 1.43 |Q | | | V | 19+ 0 3.4013 1.40 |Q | | | V | 19+ 5 3.4108 1.38 |Q | | | V | 19+10 3.4201 1.36 |Q | | | V | 19+15 3.4293 1.33 |Q | | | V | 19+20 3.4384 1.31 |Q | | | V | 19+25 3.4473 1.29 |Q | | | V | 19+30 3.4561 1.27 |Q | | | V | 19+35 3.4647 1.26 |Q | | | V | 19+40 3.4733 1.24 |Q | | | V | 19+45 3.4817 1.22 |Q | | | V | 19+50 3.4900 1.21 |Q | | | V | 19+55 3.4982 1.19 |Q | | | V | 20+ 0 3.5063 1.18 |Q | | | V | 20+ 5 3.5143 1.16 |Q | | | V | 20+10 3.5222 1.15 |Q | | | V | 20+15 3.5300 1.13 |Q | | | V | 20+20 3.5377 1.12 |Q | | | V | 20+25 3.5454 1.11 |Q | | | V | 20+30 3.5529 1.10 |Q | | | V | 20+35 3.5604 1.08 |Q | | | V | 20+40 3.5678 1.07 |Q | | | V | 20+45 3.5751 1.06 |Q | | | V | 20+50 3.5823 1.05 |Q | | | V | 20+55 3.5895 1.04 |Q | | | V | 21+ 0 3.5966 1.03 |Q | | | V | 21+ 5 3.6036 1.02 |Q | | | V | 21+10 3.6105 1.01 |Q | | | V | 21+15 3.6174 1.00 |Q | | | V | 21+20 3.6243 0.99 Q | | | V | 21+25 3.6310 0.98 Q | | | V | 21+30 3.6377 0.97 Q | | | V | 21+35 3.6444 0.96 Q | | | V | 21+40 3.6510 0.96 Q | | | V | 21+45 3.6575 0.95 Q | | | V | 21+50 3.6640 0.94 Q | | | V | 21+55 3.6704 0.93 Q | | | V | 22+ 0 3.6768 0.92 Q | | | V | 22+ 5 3.6831 0.92 Q | | | V | 22+10 3.6893 0.91 Q | | | V | 22+15 3.6956 0.90 Q | | | V | 22+20 3.7017 0.90 Q | | | V | 22+25 3.7079 0.89 Q | | | V | 22+30 3.7139 0.88 Q | | | V | 22+35 3.7200 0.88 Q | | | V | 22+40 3.7260 0.87 Q | | | V | 22+45 3.7319 0.86 Q | | | V | 22+50 3.7378 0.86 Q | | | V| 22+55 3.7437 0.85 Q | | | V| 23+ 0 3.7495 0.85 Q | | | V| 23+ 5 3.7553 0.84 Q | | | V| 23+10 3.7610 0.83 Q | | | V| 23+15 3.7667 0.83 Q | | | V| 23+20 3.7724 0.82 Q | | | V| 23+25 3.7780 0.82 Q | | | V| 23+30 3.7836 0.81 Q | | | V| 23+35 3.7892 0.81 Q | | | V| 23+40 3.7947 0.80 Q | | | V| 23+45 3.8002 0.80 Q | | | V| 23+50 3.8056 0.79 Q | | | V| 23+55 3.8111 0.79 Q | | | V| 24+ 0 3.8164 0.78 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 25 YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 25 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 10 8.22 1 0.82 -------------------------------------------------------------------- Rainfall data for year 10 8.22 6 2.07 -------------------------------------------------------------------- Rainfall data for year 10 8.22 24 3.81 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 8.22 1.000 0.978 0.900 0.880 Area-averaged adjusted loss rate Fm (In/Hr) = 0.880 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 25-year pre-condition flow rates shall be calculated using 10-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 7.40 0.900 32.0 32.0 19.05 0.000 0.82 0.100 98.0 98.0 0.20 0.938 Area-averaged catchment yield fraction, Y = 0.094 Area-averaged low loss fraction, Yb = 0.906 User entry of time of concentration = 0.303 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 8.22(Ac.) Catchment Lag time = 0.243 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 34.3614 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.880(In/Hr) Average low loss rate fraction (Yb) = 0.906 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.305(In) Computed peak 30-minute rainfall = 0.624(In) Specified peak 1-hour rainfall = 0.823(In) Computed peak 3-hour rainfall = 1.449(In) Specified peak 6-hour rainfall = 2.070(In) Specified peak 24-hour rainfall = 3.810(In) Rainfall depth area reduction factors: Using a total area of 8.22(Ac.) (Ref: fig. E-4) 5-minute factor = 1.000 Adjusted rainfall = 0.304(In) 30-minute factor = 1.000 Adjusted rainfall = 0.623(In) 1-hour factor = 1.000 Adjusted rainfall = 0.823(In) 3-hour factor = 1.000 Adjusted rainfall = 1.449(In) 6-hour factor = 1.000 Adjusted rainfall = 2.070(In) 24-hour factor = 1.000 Adjusted rainfall = 3.810(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 99.41 (CFS)) 1 2.380 2.366 2 14.565 12.114 3 37.668 22.967 4 66.447 28.609 5 84.161 17.610 6 92.859 8.646 7 97.015 4.132 8 98.439 1.416 9 99.057 0.615 10 99.673 0.612 11 100.000 0.325 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3045 0.3045 2 0.4018 0.0973 3 0.4725 0.0707 4 0.5301 0.0576 5 0.5796 0.0495 6 0.6235 0.0439 7 0.6631 0.0397 8 0.6995 0.0364 9 0.7333 0.0337 10 0.7648 0.0316 11 0.7945 0.0297 12 0.8227 0.0281 13 0.8573 0.0346 14 0.8907 0.0334 15 0.9229 0.0322 16 0.9541 0.0312 17 0.9843 0.0303 18 1.0138 0.0294 19 1.0424 0.0286 20 1.0703 0.0279 21 1.0975 0.0272 22 1.1241 0.0266 23 1.1502 0.0260 24 1.1757 0.0255 25 1.2007 0.0250 26 1.2252 0.0245 27 1.2492 0.0240 28 1.2728 0.0236 29 1.2960 0.0232 30 1.3189 0.0228 31 1.3413 0.0225 32 1.3635 0.0221 33 1.3852 0.0218 34 1.4067 0.0215 35 1.4279 0.0212 36 1.4487 0.0209 37 1.4693 0.0206 38 1.4896 0.0203 39 1.5097 0.0201 40 1.5295 0.0198 41 1.5490 0.0196 42 1.5684 0.0193 43 1.5875 0.0191 44 1.6064 0.0189 45 1.6251 0.0187 46 1.6436 0.0185 47 1.6619 0.0183 48 1.6800 0.0181 49 1.6979 0.0179 50 1.7157 0.0178 51 1.7332 0.0176 52 1.7507 0.0174 53 1.7679 0.0173 54 1.7850 0.0171 55 1.8019 0.0169 56 1.8187 0.0168 57 1.8354 0.0166 58 1.8519 0.0165 59 1.8683 0.0164 60 1.8845 0.0162 61 1.9006 0.0161 62 1.9166 0.0160 63 1.9324 0.0159 64 1.9482 0.0157 65 1.9638 0.0156 66 1.9793 0.0155 67 1.9947 0.0154 68 2.0099 0.0153 69 2.0251 0.0152 70 2.0401 0.0151 71 2.0551 0.0150 72 2.0699 0.0149 73 2.0826 0.0126 74 2.0951 0.0125 75 2.1075 0.0124 76 2.1198 0.0123 77 2.1320 0.0122 78 2.1442 0.0121 79 2.1562 0.0121 80 2.1682 0.0120 81 2.1801 0.0119 82 2.1919 0.0118 83 2.2036 0.0117 84 2.2152 0.0116 85 2.2268 0.0116 86 2.2383 0.0115 87 2.2497 0.0114 88 2.2611 0.0113 89 2.2723 0.0113 90 2.2835 0.0112 91 2.2947 0.0111 92 2.3057 0.0111 93 2.3167 0.0110 94 2.3277 0.0109 95 2.3385 0.0109 96 2.3493 0.0108 97 2.3601 0.0107 98 2.3707 0.0107 99 2.3814 0.0106 100 2.3919 0.0106 101 2.4024 0.0105 102 2.4129 0.0104 103 2.4232 0.0104 104 2.4336 0.0103 105 2.4438 0.0103 106 2.4540 0.0102 107 2.4642 0.0102 108 2.4743 0.0101 109 2.4844 0.0101 110 2.4944 0.0100 111 2.5043 0.0100 112 2.5142 0.0099 113 2.5241 0.0099 114 2.5339 0.0098 115 2.5437 0.0098 116 2.5534 0.0097 117 2.5630 0.0097 118 2.5726 0.0096 119 2.5822 0.0096 120 2.5917 0.0095 121 2.6012 0.0095 122 2.6107 0.0094 123 2.6201 0.0094 124 2.6294 0.0094 125 2.6387 0.0093 126 2.6480 0.0093 127 2.6572 0.0092 128 2.6664 0.0092 129 2.6756 0.0091 130 2.6847 0.0091 131 2.6937 0.0091 132 2.7028 0.0090 133 2.7118 0.0090 134 2.7207 0.0090 135 2.7296 0.0089 136 2.7385 0.0089 137 2.7474 0.0088 138 2.7562 0.0088 139 2.7649 0.0088 140 2.7737 0.0087 141 2.7824 0.0087 142 2.7910 0.0087 143 2.7997 0.0086 144 2.8083 0.0086 145 2.8168 0.0086 146 2.8254 0.0085 147 2.8339 0.0085 148 2.8423 0.0085 149 2.8508 0.0084 150 2.8592 0.0084 151 2.8676 0.0084 152 2.8759 0.0083 153 2.8842 0.0083 154 2.8925 0.0083 155 2.9007 0.0083 156 2.9090 0.0082 157 2.9172 0.0082 158 2.9253 0.0082 159 2.9335 0.0081 160 2.9416 0.0081 161 2.9496 0.0081 162 2.9577 0.0080 163 2.9657 0.0080 164 2.9737 0.0080 165 2.9817 0.0080 166 2.9896 0.0079 167 2.9975 0.0079 168 3.0054 0.0079 169 3.0133 0.0079 170 3.0211 0.0078 171 3.0289 0.0078 172 3.0367 0.0078 173 3.0444 0.0078 174 3.0522 0.0077 175 3.0599 0.0077 176 3.0676 0.0077 177 3.0752 0.0077 178 3.0829 0.0076 179 3.0905 0.0076 180 3.0981 0.0076 181 3.1056 0.0076 182 3.1132 0.0075 183 3.1207 0.0075 184 3.1282 0.0075 185 3.1356 0.0075 186 3.1431 0.0074 187 3.1505 0.0074 188 3.1579 0.0074 189 3.1653 0.0074 190 3.1727 0.0074 191 3.1800 0.0073 192 3.1873 0.0073 193 3.1946 0.0073 194 3.2019 0.0073 195 3.2091 0.0073 196 3.2164 0.0072 197 3.2236 0.0072 198 3.2308 0.0072 199 3.2379 0.0072 200 3.2451 0.0072 201 3.2522 0.0071 202 3.2593 0.0071 203 3.2664 0.0071 204 3.2735 0.0071 205 3.2805 0.0071 206 3.2876 0.0070 207 3.2946 0.0070 208 3.3016 0.0070 209 3.3086 0.0070 210 3.3155 0.0070 211 3.3225 0.0069 212 3.3294 0.0069 213 3.3363 0.0069 214 3.3432 0.0069 215 3.3500 0.0069 216 3.3569 0.0068 217 3.3637 0.0068 218 3.3705 0.0068 219 3.3773 0.0068 220 3.3841 0.0068 221 3.3909 0.0068 222 3.3976 0.0067 223 3.4043 0.0067 224 3.4110 0.0067 225 3.4177 0.0067 226 3.4244 0.0067 227 3.4311 0.0067 228 3.4377 0.0066 229 3.4443 0.0066 230 3.4510 0.0066 231 3.4575 0.0066 232 3.4641 0.0066 233 3.4707 0.0066 234 3.4772 0.0065 235 3.4838 0.0065 236 3.4903 0.0065 237 3.4968 0.0065 238 3.5033 0.0065 239 3.5097 0.0065 240 3.5162 0.0065 241 3.5226 0.0064 242 3.5291 0.0064 243 3.5355 0.0064 244 3.5419 0.0064 245 3.5483 0.0064 246 3.5546 0.0064 247 3.5610 0.0064 248 3.5673 0.0063 249 3.5736 0.0063 250 3.5799 0.0063 251 3.5862 0.0063 252 3.5925 0.0063 253 3.5988 0.0063 254 3.6050 0.0063 255 3.6113 0.0062 256 3.6175 0.0062 257 3.6237 0.0062 258 3.6299 0.0062 259 3.6361 0.0062 260 3.6423 0.0062 261 3.6484 0.0062 262 3.6546 0.0061 263 3.6607 0.0061 264 3.6668 0.0061 265 3.6729 0.0061 266 3.6790 0.0061 267 3.6851 0.0061 268 3.6912 0.0061 269 3.6972 0.0061 270 3.7033 0.0060 271 3.7093 0.0060 272 3.7153 0.0060 273 3.7213 0.0060 274 3.7273 0.0060 275 3.7333 0.0060 276 3.7393 0.0060 277 3.7452 0.0060 278 3.7512 0.0059 279 3.7571 0.0059 280 3.7630 0.0059 281 3.7689 0.0059 282 3.7748 0.0059 283 3.7807 0.0059 284 3.7866 0.0059 285 3.7924 0.0059 286 3.7983 0.0059 287 3.8041 0.0058 288 3.8100 0.0058 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0058 0.0053 0.0005 2 0.0058 0.0053 0.0005 3 0.0059 0.0053 0.0006 4 0.0059 0.0053 0.0006 5 0.0059 0.0053 0.0006 6 0.0059 0.0054 0.0006 7 0.0059 0.0054 0.0006 8 0.0059 0.0054 0.0006 9 0.0060 0.0054 0.0006 10 0.0060 0.0054 0.0006 11 0.0060 0.0054 0.0006 12 0.0060 0.0055 0.0006 13 0.0060 0.0055 0.0006 14 0.0061 0.0055 0.0006 15 0.0061 0.0055 0.0006 16 0.0061 0.0055 0.0006 17 0.0061 0.0055 0.0006 18 0.0061 0.0056 0.0006 19 0.0062 0.0056 0.0006 20 0.0062 0.0056 0.0006 21 0.0062 0.0056 0.0006 22 0.0062 0.0056 0.0006 23 0.0062 0.0057 0.0006 24 0.0063 0.0057 0.0006 25 0.0063 0.0057 0.0006 26 0.0063 0.0057 0.0006 27 0.0063 0.0057 0.0006 28 0.0063 0.0057 0.0006 29 0.0064 0.0058 0.0006 30 0.0064 0.0058 0.0006 31 0.0064 0.0058 0.0006 32 0.0064 0.0058 0.0006 33 0.0065 0.0058 0.0006 34 0.0065 0.0059 0.0006 35 0.0065 0.0059 0.0006 36 0.0065 0.0059 0.0006 37 0.0065 0.0059 0.0006 38 0.0066 0.0059 0.0006 39 0.0066 0.0060 0.0006 40 0.0066 0.0060 0.0006 41 0.0066 0.0060 0.0006 42 0.0067 0.0060 0.0006 43 0.0067 0.0061 0.0006 44 0.0067 0.0061 0.0006 45 0.0067 0.0061 0.0006 46 0.0068 0.0061 0.0006 47 0.0068 0.0062 0.0006 48 0.0068 0.0062 0.0006 49 0.0068 0.0062 0.0006 50 0.0069 0.0062 0.0006 51 0.0069 0.0063 0.0006 52 0.0069 0.0063 0.0006 53 0.0070 0.0063 0.0007 54 0.0070 0.0063 0.0007 55 0.0070 0.0064 0.0007 56 0.0070 0.0064 0.0007 57 0.0071 0.0064 0.0007 58 0.0071 0.0064 0.0007 59 0.0071 0.0065 0.0007 60 0.0072 0.0065 0.0007 61 0.0072 0.0065 0.0007 62 0.0072 0.0065 0.0007 63 0.0073 0.0066 0.0007 64 0.0073 0.0066 0.0007 65 0.0073 0.0066 0.0007 66 0.0073 0.0066 0.0007 67 0.0074 0.0067 0.0007 68 0.0074 0.0067 0.0007 69 0.0074 0.0067 0.0007 70 0.0075 0.0068 0.0007 71 0.0075 0.0068 0.0007 72 0.0075 0.0068 0.0007 73 0.0076 0.0069 0.0007 74 0.0076 0.0069 0.0007 75 0.0077 0.0069 0.0007 76 0.0077 0.0070 0.0007 77 0.0077 0.0070 0.0007 78 0.0078 0.0070 0.0007 79 0.0078 0.0071 0.0007 80 0.0078 0.0071 0.0007 81 0.0079 0.0071 0.0007 82 0.0079 0.0072 0.0007 83 0.0080 0.0072 0.0007 84 0.0080 0.0072 0.0008 85 0.0080 0.0073 0.0008 86 0.0081 0.0073 0.0008 87 0.0081 0.0074 0.0008 88 0.0082 0.0074 0.0008 89 0.0082 0.0074 0.0008 90 0.0083 0.0075 0.0008 91 0.0083 0.0075 0.0008 92 0.0083 0.0076 0.0008 93 0.0084 0.0076 0.0008 94 0.0084 0.0076 0.0008 95 0.0085 0.0077 0.0008 96 0.0085 0.0077 0.0008 97 0.0086 0.0078 0.0008 98 0.0086 0.0078 0.0008 99 0.0087 0.0079 0.0008 100 0.0087 0.0079 0.0008 101 0.0088 0.0080 0.0008 102 0.0088 0.0080 0.0008 103 0.0089 0.0081 0.0008 104 0.0090 0.0081 0.0008 105 0.0090 0.0082 0.0008 106 0.0091 0.0082 0.0009 107 0.0091 0.0083 0.0009 108 0.0092 0.0083 0.0009 109 0.0093 0.0084 0.0009 110 0.0093 0.0084 0.0009 111 0.0094 0.0085 0.0009 112 0.0094 0.0086 0.0009 113 0.0095 0.0086 0.0009 114 0.0096 0.0087 0.0009 115 0.0097 0.0088 0.0009 116 0.0097 0.0088 0.0009 117 0.0098 0.0089 0.0009 118 0.0099 0.0089 0.0009 119 0.0100 0.0090 0.0009 120 0.0100 0.0091 0.0009 121 0.0101 0.0092 0.0009 122 0.0102 0.0092 0.0010 123 0.0103 0.0093 0.0010 124 0.0103 0.0094 0.0010 125 0.0104 0.0095 0.0010 126 0.0105 0.0095 0.0010 127 0.0106 0.0096 0.0010 128 0.0107 0.0097 0.0010 129 0.0108 0.0098 0.0010 130 0.0109 0.0098 0.0010 131 0.0110 0.0100 0.0010 132 0.0111 0.0100 0.0010 133 0.0112 0.0102 0.0011 134 0.0113 0.0102 0.0011 135 0.0114 0.0103 0.0011 136 0.0115 0.0104 0.0011 137 0.0116 0.0106 0.0011 138 0.0117 0.0106 0.0011 139 0.0119 0.0108 0.0011 140 0.0120 0.0108 0.0011 141 0.0121 0.0110 0.0011 142 0.0122 0.0111 0.0011 143 0.0124 0.0112 0.0012 144 0.0125 0.0113 0.0012 145 0.0149 0.0135 0.0014 146 0.0150 0.0135 0.0014 147 0.0152 0.0137 0.0014 148 0.0153 0.0138 0.0014 149 0.0155 0.0140 0.0015 150 0.0156 0.0141 0.0015 151 0.0159 0.0144 0.0015 152 0.0160 0.0145 0.0015 153 0.0162 0.0147 0.0015 154 0.0164 0.0148 0.0015 155 0.0166 0.0151 0.0016 156 0.0168 0.0152 0.0016 157 0.0171 0.0155 0.0016 158 0.0173 0.0156 0.0016 159 0.0176 0.0159 0.0016 160 0.0178 0.0161 0.0017 161 0.0181 0.0164 0.0017 162 0.0183 0.0166 0.0017 163 0.0187 0.0169 0.0018 164 0.0189 0.0171 0.0018 165 0.0193 0.0175 0.0018 166 0.0196 0.0177 0.0018 167 0.0201 0.0182 0.0019 168 0.0203 0.0184 0.0019 169 0.0209 0.0189 0.0020 170 0.0212 0.0192 0.0020 171 0.0218 0.0197 0.0020 172 0.0221 0.0200 0.0021 173 0.0228 0.0207 0.0021 174 0.0232 0.0210 0.0022 175 0.0240 0.0218 0.0023 176 0.0245 0.0222 0.0023 177 0.0255 0.0231 0.0024 178 0.0260 0.0236 0.0024 179 0.0272 0.0247 0.0026 180 0.0279 0.0253 0.0026 181 0.0294 0.0267 0.0028 182 0.0303 0.0274 0.0028 183 0.0322 0.0292 0.0030 184 0.0334 0.0302 0.0031 185 0.0281 0.0255 0.0026 186 0.0297 0.0269 0.0028 187 0.0337 0.0306 0.0032 188 0.0364 0.0330 0.0034 189 0.0439 0.0397 0.0041 190 0.0495 0.0448 0.0046 191 0.0707 0.0641 0.0066 192 0.0973 0.0733 0.0239 193 0.3045 0.0733 0.2311 194 0.0576 0.0522 0.0054 195 0.0397 0.0359 0.0037 196 0.0316 0.0286 0.0030 197 0.0346 0.0314 0.0032 198 0.0312 0.0283 0.0029 199 0.0286 0.0259 0.0027 200 0.0266 0.0241 0.0025 201 0.0250 0.0226 0.0023 202 0.0236 0.0214 0.0022 203 0.0225 0.0204 0.0021 204 0.0215 0.0195 0.0020 205 0.0206 0.0186 0.0019 206 0.0198 0.0179 0.0019 207 0.0191 0.0173 0.0018 208 0.0185 0.0168 0.0017 209 0.0179 0.0162 0.0017 210 0.0174 0.0158 0.0016 211 0.0169 0.0154 0.0016 212 0.0165 0.0150 0.0015 213 0.0161 0.0146 0.0015 214 0.0157 0.0143 0.0015 215 0.0154 0.0139 0.0014 216 0.0151 0.0136 0.0014 217 0.0126 0.0114 0.0012 218 0.0123 0.0112 0.0012 219 0.0121 0.0109 0.0011 220 0.0118 0.0107 0.0011 221 0.0116 0.0105 0.0011 222 0.0113 0.0103 0.0011 223 0.0111 0.0101 0.0010 224 0.0109 0.0099 0.0010 225 0.0107 0.0097 0.0010 226 0.0106 0.0096 0.0010 227 0.0104 0.0094 0.0010 228 0.0102 0.0093 0.0010 229 0.0101 0.0091 0.0009 230 0.0099 0.0090 0.0009 231 0.0098 0.0088 0.0009 232 0.0096 0.0087 0.0009 233 0.0095 0.0086 0.0009 234 0.0094 0.0085 0.0009 235 0.0092 0.0084 0.0009 236 0.0091 0.0083 0.0009 237 0.0090 0.0081 0.0008 238 0.0089 0.0080 0.0008 239 0.0088 0.0079 0.0008 240 0.0087 0.0079 0.0008 241 0.0086 0.0078 0.0008 242 0.0085 0.0077 0.0008 243 0.0084 0.0076 0.0008 244 0.0083 0.0075 0.0008 245 0.0082 0.0074 0.0008 246 0.0081 0.0073 0.0008 247 0.0080 0.0073 0.0008 248 0.0079 0.0072 0.0007 249 0.0079 0.0071 0.0007 250 0.0078 0.0071 0.0007 251 0.0077 0.0070 0.0007 252 0.0076 0.0069 0.0007 253 0.0076 0.0069 0.0007 254 0.0075 0.0068 0.0007 255 0.0074 0.0067 0.0007 256 0.0074 0.0067 0.0007 257 0.0073 0.0066 0.0007 258 0.0072 0.0066 0.0007 259 0.0072 0.0065 0.0007 260 0.0071 0.0064 0.0007 261 0.0071 0.0064 0.0007 262 0.0070 0.0063 0.0007 263 0.0069 0.0063 0.0007 264 0.0069 0.0062 0.0006 265 0.0068 0.0062 0.0006 266 0.0068 0.0061 0.0006 267 0.0067 0.0061 0.0006 268 0.0067 0.0061 0.0006 269 0.0066 0.0060 0.0006 270 0.0066 0.0060 0.0006 271 0.0065 0.0059 0.0006 272 0.0065 0.0059 0.0006 273 0.0064 0.0058 0.0006 274 0.0064 0.0058 0.0006 275 0.0064 0.0058 0.0006 276 0.0063 0.0057 0.0006 277 0.0063 0.0057 0.0006 278 0.0062 0.0056 0.0006 279 0.0062 0.0056 0.0006 280 0.0061 0.0056 0.0006 281 0.0061 0.0055 0.0006 282 0.0061 0.0055 0.0006 283 0.0060 0.0055 0.0006 284 0.0060 0.0054 0.0006 285 0.0060 0.0054 0.0006 286 0.0059 0.0054 0.0006 287 0.0059 0.0053 0.0006 288 0.0059 0.0053 0.0005 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 3.24(In) Total effective rainfall = 0.57(In) Peak flow rate in flood hydrograph = 7.30(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 2.5 5.0 7.5 10.0 ----------------------------------------------------------------------- 0+ 5 0.0000 0.00 Q | | | | 0+10 0.0001 0.01 Q | | | | 0+15 0.0002 0.02 Q | | | | 0+20 0.0005 0.04 Q | | | | 0+25 0.0008 0.05 Q | | | | 0+30 0.0011 0.05 Q | | | | 0+35 0.0015 0.05 Q | | | | 0+40 0.0019 0.05 Q | | | | 0+45 0.0022 0.05 Q | | | | 0+50 0.0026 0.06 Q | | | | 0+55 0.0030 0.06 Q | | | | 1+ 0 0.0034 0.06 Q | | | | 1+ 5 0.0038 0.06 Q | | | | 1+10 0.0042 0.06 Q | | | | 1+15 0.0045 0.06 Q | | | | 1+20 0.0049 0.06 Q | | | | 1+25 0.0053 0.06 Q | | | | 1+30 0.0057 0.06 Q | | | | 1+35 0.0061 0.06 Q | | | | 1+40 0.0065 0.06 Q | | | | 1+45 0.0069 0.06 Q | | | | 1+50 0.0073 0.06 Q | | | | 1+55 0.0077 0.06 Q | | | | 2+ 0 0.0081 0.06 Q | | | | 2+ 5 0.0085 0.06 Q | | | | 2+10 0.0089 0.06 Q | | | | 2+15 0.0093 0.06 Q | | | | 2+20 0.0097 0.06 Q | | | | 2+25 0.0101 0.06 QV | | | | 2+30 0.0105 0.06 QV | | | | 2+35 0.0109 0.06 QV | | | | 2+40 0.0113 0.06 QV | | | | 2+45 0.0117 0.06 QV | | | | 2+50 0.0121 0.06 QV | | | | 2+55 0.0125 0.06 QV | | | | 3+ 0 0.0130 0.06 QV | | | | 3+ 5 0.0134 0.06 QV | | | | 3+10 0.0138 0.06 QV | | | | 3+15 0.0142 0.06 QV | | | | 3+20 0.0146 0.06 QV | | | | 3+25 0.0150 0.06 QV | | | | 3+30 0.0155 0.06 QV | | | | 3+35 0.0159 0.06 QV | | | | 3+40 0.0163 0.06 QV | | | | 3+45 0.0168 0.06 QV | | | | 3+50 0.0172 0.06 QV | | | | 3+55 0.0176 0.06 QV | | | | 4+ 0 0.0180 0.06 QV | | | | 4+ 5 0.0185 0.06 QV | | | | 4+10 0.0189 0.06 QV | | | | 4+15 0.0194 0.06 QV | | | | 4+20 0.0198 0.06 Q V | | | | 4+25 0.0202 0.06 Q V | | | | 4+30 0.0207 0.06 Q V | | | | 4+35 0.0211 0.06 Q V | | | | 4+40 0.0216 0.06 Q V | | | | 4+45 0.0220 0.07 Q V | | | | 4+50 0.0225 0.07 Q V | | | | 4+55 0.0229 0.07 Q V | | | | 5+ 0 0.0234 0.07 Q V | | | | 5+ 5 0.0238 0.07 Q V | | | | 5+10 0.0243 0.07 Q V | | | | 5+15 0.0247 0.07 Q V | | | | 5+20 0.0252 0.07 Q V | | | | 5+25 0.0257 0.07 Q V | | | | 5+30 0.0261 0.07 Q V | | | | 5+35 0.0266 0.07 Q V | | | | 5+40 0.0271 0.07 Q V | | | | 5+45 0.0275 0.07 Q V | | | | 5+50 0.0280 0.07 Q V | | | | 5+55 0.0285 0.07 Q V | | | | 6+ 0 0.0290 0.07 Q V | | | | 6+ 5 0.0295 0.07 Q V | | | | 6+10 0.0299 0.07 Q V | | | | 6+15 0.0304 0.07 Q V | | | | 6+20 0.0309 0.07 Q V | | | | 6+25 0.0314 0.07 Q V | | | | 6+30 0.0319 0.07 Q V | | | | 6+35 0.0324 0.07 Q V | | | | 6+40 0.0329 0.07 Q V | | | | 6+45 0.0334 0.07 Q V | | | | 6+50 0.0339 0.07 Q V | | | | 6+55 0.0344 0.07 Q V | | | | 7+ 0 0.0349 0.07 Q V | | | | 7+ 5 0.0354 0.07 Q V | | | | 7+10 0.0359 0.07 Q V | | | | 7+15 0.0364 0.07 Q V | | | | 7+20 0.0369 0.08 Q V | | | | 7+25 0.0375 0.08 Q V | | | | 7+30 0.0380 0.08 Q V | | | | 7+35 0.0385 0.08 Q V | | | | 7+40 0.0390 0.08 Q V | | | | 7+45 0.0396 0.08 Q V | | | | 7+50 0.0401 0.08 Q V | | | | 7+55 0.0406 0.08 Q V | | | | 8+ 0 0.0412 0.08 Q V | | | | 8+ 5 0.0417 0.08 Q V | | | | 8+10 0.0423 0.08 Q V | | | | 8+15 0.0428 0.08 Q V | | | | 8+20 0.0434 0.08 Q V | | | | 8+25 0.0439 0.08 Q V | | | | 8+30 0.0445 0.08 Q V | | | | 8+35 0.0450 0.08 Q V | | | | 8+40 0.0456 0.08 Q V | | | | 8+45 0.0462 0.08 Q V | | | | 8+50 0.0467 0.08 Q V | | | | 8+55 0.0473 0.08 Q V | | | | 9+ 0 0.0479 0.08 Q V | | | | 9+ 5 0.0485 0.08 Q V | | | | 9+10 0.0491 0.09 Q V | | | | 9+15 0.0497 0.09 Q V | | | | 9+20 0.0503 0.09 Q V | | | | 9+25 0.0509 0.09 Q V | | | | 9+30 0.0515 0.09 Q V | | | | 9+35 0.0521 0.09 Q V | | | | 9+40 0.0527 0.09 Q V | | | | 9+45 0.0533 0.09 Q V | | | | 9+50 0.0539 0.09 Q V | | | | 9+55 0.0545 0.09 Q V | | | | 10+ 0 0.0552 0.09 Q V | | | | 10+ 5 0.0558 0.09 Q V | | | | 10+10 0.0564 0.09 Q V | | | | 10+15 0.0571 0.09 Q V | | | | 10+20 0.0577 0.09 Q V | | | | 10+25 0.0584 0.09 Q V | | | | 10+30 0.0590 0.10 Q V | | | | 10+35 0.0597 0.10 Q V | | | | 10+40 0.0604 0.10 Q V | | | | 10+45 0.0610 0.10 Q V | | | | 10+50 0.0617 0.10 Q V | | | | 10+55 0.0624 0.10 Q V | | | | 11+ 0 0.0631 0.10 Q V | | | | 11+ 5 0.0638 0.10 Q V | | | | 11+10 0.0645 0.10 Q V | | | | 11+15 0.0652 0.10 Q V | | | | 11+20 0.0659 0.10 Q V | | | | 11+25 0.0667 0.11 Q V | | | | 11+30 0.0674 0.11 Q V | | | | 11+35 0.0681 0.11 Q V | | | | 11+40 0.0689 0.11 Q V | | | | 11+45 0.0696 0.11 Q V | | | | 11+50 0.0704 0.11 Q V | | | | 11+55 0.0712 0.11 Q V | | | | 12+ 0 0.0719 0.11 Q V | | | | 12+ 5 0.0727 0.11 Q V | | | | 12+10 0.0736 0.12 Q V | | | | 12+15 0.0744 0.12 Q V | | | | 12+20 0.0753 0.13 Q V | | | | 12+25 0.0763 0.14 Q V | | | | 12+30 0.0772 0.14 Q V | | | | 12+35 0.0782 0.14 Q V | | | | 12+40 0.0792 0.14 Q V | | | | 12+45 0.0802 0.15 Q V | | | | 12+50 0.0812 0.15 Q V | | | | 12+55 0.0822 0.15 Q V | | | | 13+ 0 0.0833 0.15 Q V | | | | 13+ 5 0.0843 0.15 Q V | | | | 13+10 0.0854 0.15 Q V | | | | 13+15 0.0865 0.16 Q V | | | | 13+20 0.0876 0.16 Q V | | | | 13+25 0.0887 0.16 Q V| | | | 13+30 0.0898 0.16 Q V| | | | 13+35 0.0910 0.17 Q V| | | | 13+40 0.0921 0.17 Q V| | | | 13+45 0.0933 0.17 Q V| | | | 13+50 0.0945 0.17 Q V| | | | 13+55 0.0957 0.18 Q V| | | | 14+ 0 0.0969 0.18 Q V| | | | 14+ 5 0.0982 0.18 Q V| | | | 14+10 0.0995 0.19 Q V | | | 14+15 0.1008 0.19 Q V | | | 14+20 0.1021 0.19 Q V | | | 14+25 0.1035 0.20 Q V | | | 14+30 0.1049 0.20 Q V | | | 14+35 0.1063 0.21 Q V | | | 14+40 0.1078 0.21 Q V | | | 14+45 0.1093 0.22 Q |V | | | 14+50 0.1108 0.22 Q |V | | | 14+55 0.1124 0.23 Q |V | | | 15+ 0 0.1140 0.24 Q |V | | | 15+ 5 0.1157 0.24 Q |V | | | 15+10 0.1175 0.25 |Q |V | | | 15+15 0.1193 0.26 |Q | V | | | 15+20 0.1212 0.27 |Q | V | | | 15+25 0.1231 0.28 |Q | V | | | 15+30 0.1251 0.29 |Q | V | | | 15+35 0.1271 0.29 |Q | V | | | 15+40 0.1291 0.29 |Q | V | | | 15+45 0.1311 0.30 |Q | V | | | 15+50 0.1333 0.32 |Q | V | | | 15+55 0.1358 0.36 |Q | V | | | 16+ 0 0.1391 0.47 |Q | V | | | 16+ 5 0.1477 1.25 | Q | V | | | 16+10 0.1731 3.69 | | Q V | | | 16+15 0.2161 6.25 | | |V Q | | 16+20 0.2664 7.30 | | | V Q| | 16+25 0.2981 4.60 | | Q | V | 16+30 0.3148 2.43 | Q| | |V | 16+35 0.3239 1.31 | Q | | | V | 16+40 0.3284 0.65 | Q | | | V | 16+45 0.3314 0.45 |Q | | | V | 16+50 0.3343 0.42 |Q | | | V | 16+55 0.3366 0.33 |Q | | | V | 17+ 0 0.3382 0.24 Q | | | V | 17+ 5 0.3397 0.22 Q | | | V | 17+10 0.3412 0.21 Q | | | V | 17+15 0.3426 0.20 Q | | | V | 17+20 0.3439 0.19 Q | | | V | 17+25 0.3452 0.19 Q | | | V | 17+30 0.3465 0.18 Q | | | V | 17+35 0.3477 0.17 Q | | | V | 17+40 0.3488 0.17 Q | | | V | 17+45 0.3499 0.16 Q | | | V | 17+50 0.3510 0.16 Q | | | V | 17+55 0.3521 0.15 Q | | | V | 18+ 0 0.3531 0.15 Q | | | V | 18+ 5 0.3542 0.15 Q | | | V | 18+10 0.3551 0.14 Q | | | V | 18+15 0.3560 0.13 Q | | | V | 18+20 0.3569 0.12 Q | | | V | 18+25 0.3577 0.12 Q | | | V | 18+30 0.3585 0.11 Q | | | V | 18+35 0.3593 0.11 Q | | | V | 18+40 0.3600 0.11 Q | | | V | 18+45 0.3608 0.11 Q | | | V | 18+50 0.3615 0.10 Q | | | V | 18+55 0.3622 0.10 Q | | | V | 19+ 0 0.3629 0.10 Q | | | V | 19+ 5 0.3635 0.10 Q | | | V | 19+10 0.3642 0.10 Q | | | V | 19+15 0.3649 0.10 Q | | | V | 19+20 0.3655 0.09 Q | | | V | 19+25 0.3662 0.09 Q | | | V | 19+30 0.3668 0.09 Q | | | V | 19+35 0.3674 0.09 Q | | | V | 19+40 0.3680 0.09 Q | | | V | 19+45 0.3686 0.09 Q | | | V | 19+50 0.3692 0.09 Q | | | V | 19+55 0.3698 0.09 Q | | | V | 20+ 0 0.3704 0.08 Q | | | V | 20+ 5 0.3709 0.08 Q | | | V | 20+10 0.3715 0.08 Q | | | V | 20+15 0.3721 0.08 Q | | | V | 20+20 0.3726 0.08 Q | | | V | 20+25 0.3732 0.08 Q | | | V | 20+30 0.3737 0.08 Q | | | V | 20+35 0.3742 0.08 Q | | | V | 20+40 0.3748 0.08 Q | | | V | 20+45 0.3753 0.08 Q | | | V | 20+50 0.3758 0.07 Q | | | V | 20+55 0.3763 0.07 Q | | | V | 21+ 0 0.3768 0.07 Q | | | V | 21+ 5 0.3773 0.07 Q | | | V | 21+10 0.3778 0.07 Q | | | V | 21+15 0.3783 0.07 Q | | | V | 21+20 0.3788 0.07 Q | | | V | 21+25 0.3793 0.07 Q | | | V | 21+30 0.3798 0.07 Q | | | V | 21+35 0.3802 0.07 Q | | | V | 21+40 0.3807 0.07 Q | | | V | 21+45 0.3812 0.07 Q | | | V | 21+50 0.3816 0.07 Q | | | V | 21+55 0.3821 0.07 Q | | | V | 22+ 0 0.3825 0.07 Q | | | V | 22+ 5 0.3830 0.07 Q | | | V | 22+10 0.3834 0.06 Q | | | V | 22+15 0.3839 0.06 Q | | | V| 22+20 0.3843 0.06 Q | | | V| 22+25 0.3847 0.06 Q | | | V| 22+30 0.3852 0.06 Q | | | V| 22+35 0.3856 0.06 Q | | | V| 22+40 0.3860 0.06 Q | | | V| 22+45 0.3865 0.06 Q | | | V| 22+50 0.3869 0.06 Q | | | V| 22+55 0.3873 0.06 Q | | | V| 23+ 0 0.3877 0.06 Q | | | V| 23+ 5 0.3881 0.06 Q | | | V| 23+10 0.3885 0.06 Q | | | V| 23+15 0.3889 0.06 Q | | | V| 23+20 0.3893 0.06 Q | | | V| 23+25 0.3897 0.06 Q | | | V| 23+30 0.3901 0.06 Q | | | V| 23+35 0.3905 0.06 Q | | | V| 23+40 0.3909 0.06 Q | | | V| 23+45 0.3913 0.06 Q | | | V| 23+50 0.3917 0.06 Q | | | V| 23+55 0.3921 0.06 Q | | | V| 24+ 0 0.3925 0.06 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.4 UNIT HYDROGRAPH ANALYSIS PRE-DEVELOPMENT CONDITIONS – 100 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 100-YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 100 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 25 29.19 1 1.02 -------------------------------------------------------------------- Rainfall data for year 25 29.19 6 2.49 -------------------------------------------------------------------- Rainfall data for year 25 29.19 24 4.57 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 29.19 1.000 0.978 0.600 0.587 Area-averaged adjusted loss rate Fm (In/Hr) = 0.587 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 100-year pre-condition flow rates shall be calculated using 25-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 17.51 0.600 32.0 32.0 21.25 0.001 11.68 0.400 98.0 98.0 0.20 0.948 Area-averaged catchment yield fraction, Y = 0.380 Area-averaged low loss fraction, Yb = 0.620 User entry of time of concentration = 0.231 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 29.19(Ac.) Catchment Lag time = 0.185 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 45.1172 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.587(In/Hr) Average low loss rate fraction (Yb) = 0.620 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.378(In) Computed peak 30-minute rainfall = 0.773(In) Specified peak 1-hour rainfall = 1.020(In) Computed peak 3-hour rainfall = 1.763(In) Specified peak 6-hour rainfall = 2.490(In) Specified peak 24-hour rainfall = 4.570(In) Rainfall depth area reduction factors: Using a total area of 29.19(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.377(In) 30-minute factor = 0.999 Adjusted rainfall = 0.772(In) 1-hour factor = 0.999 Adjusted rainfall = 1.019(In) 3-hour factor = 1.000 Adjusted rainfall = 1.763(In) 6-hour factor = 1.000 Adjusted rainfall = 2.490(In) 24-hour factor = 1.000 Adjusted rainfall = 4.570(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 353.02 (CFS)) 1 3.769 13.305 2 24.569 73.427 3 60.316 126.193 4 85.008 87.169 5 94.874 34.829 6 98.178 11.662 7 99.079 3.180 8 100.000 1.590 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3770 0.3770 2 0.4974 0.1205 3 0.5850 0.0876 4 0.6564 0.0713 5 0.7177 0.0613 6 0.7720 0.0543 7 0.8211 0.0491 8 0.8661 0.0450 9 0.9079 0.0418 10 0.9470 0.0391 11 0.9838 0.0368 12 1.0186 0.0348 13 1.0601 0.0415 14 1.1001 0.0400 15 1.1386 0.0385 16 1.1759 0.0373 17 1.2120 0.0361 18 1.2471 0.0351 19 1.2812 0.0341 20 1.3145 0.0332 21 1.3469 0.0324 22 1.3785 0.0316 23 1.4095 0.0309 24 1.4397 0.0303 25 1.4694 0.0296 26 1.4984 0.0291 27 1.5269 0.0285 28 1.5549 0.0280 29 1.5824 0.0275 30 1.6094 0.0270 31 1.6359 0.0266 32 1.6621 0.0261 33 1.6878 0.0257 34 1.7131 0.0253 35 1.7381 0.0250 36 1.7627 0.0246 37 1.7869 0.0242 38 1.8108 0.0239 39 1.8344 0.0236 40 1.8577 0.0233 41 1.8807 0.0230 42 1.9034 0.0227 43 1.9259 0.0224 44 1.9481 0.0222 45 1.9700 0.0219 46 1.9917 0.0217 47 2.0131 0.0215 48 2.0344 0.0212 49 2.0554 0.0210 50 2.0762 0.0208 51 2.0967 0.0206 52 2.1171 0.0204 53 2.1373 0.0202 54 2.1573 0.0200 55 2.1771 0.0198 56 2.1968 0.0196 57 2.2162 0.0195 58 2.2355 0.0193 59 2.2546 0.0191 60 2.2736 0.0190 61 2.2924 0.0188 62 2.3110 0.0186 63 2.3295 0.0185 64 2.3479 0.0183 65 2.3661 0.0182 66 2.3841 0.0181 67 2.4021 0.0179 68 2.4199 0.0178 69 2.4375 0.0177 70 2.4551 0.0175 71 2.4725 0.0174 72 2.4898 0.0173 73 2.5049 0.0151 74 2.5198 0.0150 75 2.5347 0.0149 76 2.5494 0.0147 77 2.5641 0.0146 78 2.5786 0.0145 79 2.5931 0.0144 80 2.6074 0.0143 81 2.6216 0.0142 82 2.6357 0.0141 83 2.6498 0.0140 84 2.6637 0.0139 85 2.6776 0.0138 86 2.6913 0.0138 87 2.7050 0.0137 88 2.7185 0.0136 89 2.7320 0.0135 90 2.7454 0.0134 91 2.7588 0.0133 92 2.7720 0.0132 93 2.7852 0.0132 94 2.7982 0.0131 95 2.8112 0.0130 96 2.8242 0.0129 97 2.8370 0.0128 98 2.8498 0.0128 99 2.8625 0.0127 100 2.8751 0.0126 101 2.8877 0.0126 102 2.9002 0.0125 103 2.9126 0.0124 104 2.9250 0.0124 105 2.9372 0.0123 106 2.9495 0.0122 107 2.9616 0.0122 108 2.9737 0.0121 109 2.9857 0.0120 110 2.9977 0.0120 111 3.0096 0.0119 112 3.0215 0.0118 113 3.0333 0.0118 114 3.0450 0.0117 115 3.0567 0.0117 116 3.0683 0.0116 117 3.0798 0.0116 118 3.0913 0.0115 119 3.1028 0.0114 120 3.1142 0.0114 121 3.1255 0.0113 122 3.1368 0.0113 123 3.1480 0.0112 124 3.1592 0.0112 125 3.1704 0.0111 126 3.1815 0.0111 127 3.1925 0.0110 128 3.2035 0.0110 129 3.2144 0.0109 130 3.2253 0.0109 131 3.2362 0.0108 132 3.2470 0.0108 133 3.2577 0.0108 134 3.2684 0.0107 135 3.2791 0.0107 136 3.2897 0.0106 137 3.3003 0.0106 138 3.3108 0.0105 139 3.3213 0.0105 140 3.3317 0.0104 141 3.3421 0.0104 142 3.3525 0.0104 143 3.3628 0.0103 144 3.3731 0.0103 145 3.3833 0.0102 146 3.3935 0.0102 147 3.4037 0.0102 148 3.4138 0.0101 149 3.4239 0.0101 150 3.4340 0.0100 151 3.4440 0.0100 152 3.4540 0.0100 153 3.4639 0.0099 154 3.4738 0.0099 155 3.4837 0.0099 156 3.4935 0.0098 157 3.5033 0.0098 158 3.5130 0.0098 159 3.5228 0.0097 160 3.5324 0.0097 161 3.5421 0.0097 162 3.5517 0.0096 163 3.5613 0.0096 164 3.5709 0.0096 165 3.5804 0.0095 166 3.5899 0.0095 167 3.5993 0.0095 168 3.6088 0.0094 169 3.6181 0.0094 170 3.6275 0.0094 171 3.6368 0.0093 172 3.6461 0.0093 173 3.6554 0.0093 174 3.6647 0.0092 175 3.6739 0.0092 176 3.6830 0.0092 177 3.6922 0.0092 178 3.7013 0.0091 179 3.7104 0.0091 180 3.7195 0.0091 181 3.7285 0.0090 182 3.7375 0.0090 183 3.7465 0.0090 184 3.7555 0.0090 185 3.7644 0.0089 186 3.7733 0.0089 187 3.7822 0.0089 188 3.7910 0.0088 189 3.7998 0.0088 190 3.8086 0.0088 191 3.8174 0.0088 192 3.8261 0.0087 193 3.8349 0.0087 194 3.8436 0.0087 195 3.8522 0.0087 196 3.8609 0.0086 197 3.8695 0.0086 198 3.8781 0.0086 199 3.8866 0.0086 200 3.8952 0.0085 201 3.9037 0.0085 202 3.9122 0.0085 203 3.9207 0.0085 204 3.9291 0.0084 205 3.9375 0.0084 206 3.9459 0.0084 207 3.9543 0.0084 208 3.9627 0.0084 209 3.9710 0.0083 210 3.9793 0.0083 211 3.9876 0.0083 212 3.9959 0.0083 213 4.0041 0.0082 214 4.0124 0.0082 215 4.0206 0.0082 216 4.0287 0.0082 217 4.0369 0.0082 218 4.0450 0.0081 219 4.0532 0.0081 220 4.0613 0.0081 221 4.0693 0.0081 222 4.0774 0.0081 223 4.0854 0.0080 224 4.0934 0.0080 225 4.1014 0.0080 226 4.1094 0.0080 227 4.1174 0.0080 228 4.1253 0.0079 229 4.1332 0.0079 230 4.1411 0.0079 231 4.1490 0.0079 232 4.1568 0.0079 233 4.1647 0.0078 234 4.1725 0.0078 235 4.1803 0.0078 236 4.1881 0.0078 237 4.1959 0.0078 238 4.2036 0.0077 239 4.2113 0.0077 240 4.2190 0.0077 241 4.2267 0.0077 242 4.2344 0.0077 243 4.2421 0.0077 244 4.2497 0.0076 245 4.2573 0.0076 246 4.2649 0.0076 247 4.2725 0.0076 248 4.2801 0.0076 249 4.2876 0.0076 250 4.2952 0.0075 251 4.3027 0.0075 252 4.3102 0.0075 253 4.3177 0.0075 254 4.3251 0.0075 255 4.3326 0.0075 256 4.3400 0.0074 257 4.3474 0.0074 258 4.3548 0.0074 259 4.3622 0.0074 260 4.3696 0.0074 261 4.3770 0.0074 262 4.3843 0.0073 263 4.3916 0.0073 264 4.3989 0.0073 265 4.4062 0.0073 266 4.4135 0.0073 267 4.4208 0.0073 268 4.4280 0.0072 269 4.4352 0.0072 270 4.4424 0.0072 271 4.4496 0.0072 272 4.4568 0.0072 273 4.4640 0.0072 274 4.4712 0.0072 275 4.4783 0.0071 276 4.4854 0.0071 277 4.4925 0.0071 278 4.4996 0.0071 279 4.5067 0.0071 280 4.5138 0.0071 281 4.5208 0.0071 282 4.5279 0.0070 283 4.5349 0.0070 284 4.5419 0.0070 285 4.5489 0.0070 286 4.5559 0.0070 287 4.5629 0.0070 288 4.5698 0.0070 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0070 0.0043 0.0026 2 0.0070 0.0043 0.0026 3 0.0070 0.0043 0.0027 4 0.0070 0.0043 0.0027 5 0.0070 0.0044 0.0027 6 0.0071 0.0044 0.0027 7 0.0071 0.0044 0.0027 8 0.0071 0.0044 0.0027 9 0.0071 0.0044 0.0027 10 0.0071 0.0044 0.0027 11 0.0072 0.0044 0.0027 12 0.0072 0.0045 0.0027 13 0.0072 0.0045 0.0027 14 0.0072 0.0045 0.0027 15 0.0073 0.0045 0.0028 16 0.0073 0.0045 0.0028 17 0.0073 0.0045 0.0028 18 0.0073 0.0045 0.0028 19 0.0074 0.0046 0.0028 20 0.0074 0.0046 0.0028 21 0.0074 0.0046 0.0028 22 0.0074 0.0046 0.0028 23 0.0075 0.0046 0.0028 24 0.0075 0.0046 0.0028 25 0.0075 0.0047 0.0029 26 0.0075 0.0047 0.0029 27 0.0076 0.0047 0.0029 28 0.0076 0.0047 0.0029 29 0.0076 0.0047 0.0029 30 0.0076 0.0047 0.0029 31 0.0077 0.0047 0.0029 32 0.0077 0.0048 0.0029 33 0.0077 0.0048 0.0029 34 0.0077 0.0048 0.0029 35 0.0078 0.0048 0.0030 36 0.0078 0.0048 0.0030 37 0.0078 0.0048 0.0030 38 0.0078 0.0049 0.0030 39 0.0079 0.0049 0.0030 40 0.0079 0.0049 0.0030 41 0.0079 0.0049 0.0030 42 0.0080 0.0049 0.0030 43 0.0080 0.0050 0.0030 44 0.0080 0.0050 0.0030 45 0.0081 0.0050 0.0031 46 0.0081 0.0050 0.0031 47 0.0081 0.0050 0.0031 48 0.0081 0.0050 0.0031 49 0.0082 0.0051 0.0031 50 0.0082 0.0051 0.0031 51 0.0082 0.0051 0.0031 52 0.0083 0.0051 0.0031 53 0.0083 0.0052 0.0032 54 0.0083 0.0052 0.0032 55 0.0084 0.0052 0.0032 56 0.0084 0.0052 0.0032 57 0.0084 0.0052 0.0032 58 0.0085 0.0053 0.0032 59 0.0085 0.0053 0.0032 60 0.0085 0.0053 0.0032 61 0.0086 0.0053 0.0033 62 0.0086 0.0053 0.0033 63 0.0087 0.0054 0.0033 64 0.0087 0.0054 0.0033 65 0.0087 0.0054 0.0033 66 0.0088 0.0054 0.0033 67 0.0088 0.0055 0.0034 68 0.0088 0.0055 0.0034 69 0.0089 0.0055 0.0034 70 0.0089 0.0055 0.0034 71 0.0090 0.0056 0.0034 72 0.0090 0.0056 0.0034 73 0.0091 0.0056 0.0034 74 0.0091 0.0056 0.0035 75 0.0092 0.0057 0.0035 76 0.0092 0.0057 0.0035 77 0.0092 0.0057 0.0035 78 0.0093 0.0057 0.0035 79 0.0093 0.0058 0.0035 80 0.0094 0.0058 0.0036 81 0.0094 0.0058 0.0036 82 0.0095 0.0059 0.0036 83 0.0095 0.0059 0.0036 84 0.0096 0.0059 0.0036 85 0.0096 0.0060 0.0037 86 0.0097 0.0060 0.0037 87 0.0097 0.0060 0.0037 88 0.0098 0.0061 0.0037 89 0.0098 0.0061 0.0037 90 0.0099 0.0061 0.0037 91 0.0099 0.0062 0.0038 92 0.0100 0.0062 0.0038 93 0.0100 0.0062 0.0038 94 0.0101 0.0063 0.0038 95 0.0102 0.0063 0.0039 96 0.0102 0.0063 0.0039 97 0.0103 0.0064 0.0039 98 0.0103 0.0064 0.0039 99 0.0104 0.0065 0.0040 100 0.0104 0.0065 0.0040 101 0.0105 0.0065 0.0040 102 0.0106 0.0066 0.0040 103 0.0107 0.0066 0.0041 104 0.0107 0.0066 0.0041 105 0.0108 0.0067 0.0041 106 0.0108 0.0067 0.0041 107 0.0109 0.0068 0.0042 108 0.0110 0.0068 0.0042 109 0.0111 0.0069 0.0042 110 0.0111 0.0069 0.0042 111 0.0112 0.0070 0.0043 112 0.0113 0.0070 0.0043 113 0.0114 0.0071 0.0043 114 0.0114 0.0071 0.0044 115 0.0116 0.0072 0.0044 116 0.0116 0.0072 0.0044 117 0.0117 0.0073 0.0045 118 0.0118 0.0073 0.0045 119 0.0119 0.0074 0.0045 120 0.0120 0.0074 0.0045 121 0.0121 0.0075 0.0046 122 0.0122 0.0075 0.0046 123 0.0123 0.0076 0.0047 124 0.0124 0.0077 0.0047 125 0.0125 0.0077 0.0047 126 0.0126 0.0078 0.0048 127 0.0127 0.0079 0.0048 128 0.0128 0.0079 0.0049 129 0.0129 0.0080 0.0049 130 0.0130 0.0081 0.0049 131 0.0132 0.0082 0.0050 132 0.0132 0.0082 0.0050 133 0.0134 0.0083 0.0051 134 0.0135 0.0084 0.0051 135 0.0137 0.0085 0.0052 136 0.0138 0.0085 0.0052 137 0.0139 0.0086 0.0053 138 0.0140 0.0087 0.0053 139 0.0142 0.0088 0.0054 140 0.0143 0.0089 0.0054 141 0.0145 0.0090 0.0055 142 0.0146 0.0091 0.0056 143 0.0149 0.0092 0.0056 144 0.0150 0.0093 0.0057 145 0.0173 0.0107 0.0066 146 0.0174 0.0108 0.0066 147 0.0177 0.0110 0.0067 148 0.0178 0.0110 0.0068 149 0.0181 0.0112 0.0069 150 0.0182 0.0113 0.0069 151 0.0185 0.0115 0.0070 152 0.0186 0.0116 0.0071 153 0.0190 0.0118 0.0072 154 0.0191 0.0119 0.0073 155 0.0195 0.0121 0.0074 156 0.0196 0.0122 0.0075 157 0.0200 0.0124 0.0076 158 0.0202 0.0125 0.0077 159 0.0206 0.0128 0.0078 160 0.0208 0.0129 0.0079 161 0.0212 0.0132 0.0081 162 0.0215 0.0133 0.0082 163 0.0219 0.0136 0.0083 164 0.0222 0.0138 0.0084 165 0.0227 0.0141 0.0086 166 0.0230 0.0143 0.0087 167 0.0236 0.0146 0.0090 168 0.0239 0.0148 0.0091 169 0.0246 0.0153 0.0094 170 0.0250 0.0155 0.0095 171 0.0257 0.0160 0.0098 172 0.0261 0.0162 0.0099 173 0.0270 0.0167 0.0103 174 0.0275 0.0170 0.0104 175 0.0285 0.0177 0.0108 176 0.0291 0.0180 0.0110 177 0.0303 0.0188 0.0115 178 0.0309 0.0192 0.0118 179 0.0324 0.0201 0.0123 180 0.0332 0.0206 0.0126 181 0.0351 0.0218 0.0133 182 0.0361 0.0224 0.0137 183 0.0385 0.0239 0.0146 184 0.0400 0.0248 0.0152 185 0.0348 0.0216 0.0132 186 0.0368 0.0228 0.0140 187 0.0418 0.0259 0.0159 188 0.0450 0.0279 0.0171 189 0.0543 0.0337 0.0206 190 0.0613 0.0380 0.0233 191 0.0876 0.0489 0.0387 192 0.1205 0.0489 0.0716 193 0.3770 0.0489 0.3281 194 0.0713 0.0442 0.0271 195 0.0491 0.0304 0.0187 196 0.0391 0.0242 0.0148 197 0.0415 0.0257 0.0158 198 0.0373 0.0231 0.0142 199 0.0341 0.0212 0.0130 200 0.0316 0.0196 0.0120 201 0.0296 0.0184 0.0113 202 0.0280 0.0173 0.0106 203 0.0266 0.0165 0.0101 204 0.0253 0.0157 0.0096 205 0.0242 0.0150 0.0092 206 0.0233 0.0144 0.0088 207 0.0224 0.0139 0.0085 208 0.0217 0.0134 0.0082 209 0.0210 0.0130 0.0080 210 0.0204 0.0126 0.0077 211 0.0198 0.0123 0.0075 212 0.0193 0.0120 0.0073 213 0.0188 0.0117 0.0071 214 0.0183 0.0114 0.0070 215 0.0179 0.0111 0.0068 216 0.0175 0.0109 0.0067 217 0.0151 0.0094 0.0057 218 0.0147 0.0091 0.0056 219 0.0144 0.0089 0.0055 220 0.0141 0.0088 0.0054 221 0.0138 0.0086 0.0053 222 0.0136 0.0084 0.0052 223 0.0133 0.0083 0.0051 224 0.0131 0.0081 0.0050 225 0.0128 0.0080 0.0049 226 0.0126 0.0078 0.0048 227 0.0124 0.0077 0.0047 228 0.0122 0.0076 0.0046 229 0.0120 0.0075 0.0046 230 0.0118 0.0073 0.0045 231 0.0117 0.0072 0.0044 232 0.0115 0.0071 0.0044 233 0.0113 0.0070 0.0043 234 0.0112 0.0069 0.0043 235 0.0110 0.0068 0.0042 236 0.0109 0.0068 0.0041 237 0.0108 0.0067 0.0041 238 0.0106 0.0066 0.0040 239 0.0105 0.0065 0.0040 240 0.0104 0.0064 0.0039 241 0.0102 0.0064 0.0039 242 0.0101 0.0063 0.0038 243 0.0100 0.0062 0.0038 244 0.0099 0.0061 0.0038 245 0.0098 0.0061 0.0037 246 0.0097 0.0060 0.0037 247 0.0096 0.0059 0.0036 248 0.0095 0.0059 0.0036 249 0.0094 0.0058 0.0036 250 0.0093 0.0058 0.0035 251 0.0092 0.0057 0.0035 252 0.0091 0.0057 0.0035 253 0.0090 0.0056 0.0034 254 0.0090 0.0056 0.0034 255 0.0089 0.0055 0.0034 256 0.0088 0.0055 0.0033 257 0.0087 0.0054 0.0033 258 0.0086 0.0054 0.0033 259 0.0086 0.0053 0.0033 260 0.0085 0.0053 0.0032 261 0.0084 0.0052 0.0032 262 0.0084 0.0052 0.0032 263 0.0083 0.0051 0.0031 264 0.0082 0.0051 0.0031 265 0.0082 0.0051 0.0031 266 0.0081 0.0050 0.0031 267 0.0080 0.0050 0.0031 268 0.0080 0.0049 0.0030 269 0.0079 0.0049 0.0030 270 0.0079 0.0049 0.0030 271 0.0078 0.0048 0.0030 272 0.0077 0.0048 0.0029 273 0.0077 0.0048 0.0029 274 0.0076 0.0047 0.0029 275 0.0076 0.0047 0.0029 276 0.0075 0.0047 0.0029 277 0.0075 0.0046 0.0028 278 0.0074 0.0046 0.0028 279 0.0074 0.0046 0.0028 280 0.0073 0.0046 0.0028 281 0.0073 0.0045 0.0028 282 0.0072 0.0045 0.0028 283 0.0072 0.0045 0.0027 284 0.0072 0.0044 0.0027 285 0.0071 0.0044 0.0027 286 0.0071 0.0044 0.0027 287 0.0070 0.0044 0.0027 288 0.0070 0.0043 0.0027 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 2.62(In) Total effective rainfall = 1.95(In) Peak flow rate in flood hydrograph = 51.59(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 15.0 30.0 45.0 60.0 ----------------------------------------------------------------------- 0+ 5 0.0002 0.04 Q | | | | 0+10 0.0018 0.23 Q | | | | 0+15 0.0057 0.56 Q | | | | 0+20 0.0112 0.80 Q | | | | 0+25 0.0173 0.89 Q | | | | 0+30 0.0237 0.92 Q | | | | 0+35 0.0301 0.93 Q | | | | 0+40 0.0366 0.94 Q | | | | 0+45 0.0431 0.94 Q | | | | 0+50 0.0496 0.95 Q | | | | 0+55 0.0562 0.95 Q | | | | 1+ 0 0.0627 0.95 Q | | | | 1+ 5 0.0693 0.96 Q | | | | 1+10 0.0759 0.96 Q | | | | 1+15 0.0825 0.96 Q | | | | 1+20 0.0892 0.96 Q | | | | 1+25 0.0958 0.97 Q | | | | 1+30 0.1025 0.97 Q | | | | 1+35 0.1092 0.97 Q | | | | 1+40 0.1160 0.98 Q | | | | 1+45 0.1227 0.98 QV | | | | 1+50 0.1295 0.98 QV | | | | 1+55 0.1363 0.99 QV | | | | 2+ 0 0.1431 0.99 QV | | | | 2+ 5 0.1499 0.99 QV | | | | 2+10 0.1568 1.00 QV | | | | 2+15 0.1637 1.00 QV | | | | 2+20 0.1706 1.00 QV | | | | 2+25 0.1775 1.01 QV | | | | 2+30 0.1845 1.01 QV | | | | 2+35 0.1915 1.01 QV | | | | 2+40 0.1985 1.02 QV | | | | 2+45 0.2055 1.02 QV | | | | 2+50 0.2125 1.02 QV | | | | 2+55 0.2196 1.03 QV | | | | 3+ 0 0.2267 1.03 QV | | | | 3+ 5 0.2338 1.03 QV | | | | 3+10 0.2410 1.04 Q V | | | | 3+15 0.2482 1.04 Q V | | | | 3+20 0.2554 1.05 Q V | | | | 3+25 0.2626 1.05 Q V | | | | 3+30 0.2699 1.05 Q V | | | | 3+35 0.2772 1.06 Q V | | | | 3+40 0.2845 1.06 Q V | | | | 3+45 0.2918 1.07 Q V | | | | 3+50 0.2992 1.07 Q V | | | | 3+55 0.3066 1.07 Q V | | | | 4+ 0 0.3140 1.08 Q V | | | | 4+ 5 0.3214 1.08 Q V | | | | 4+10 0.3289 1.09 Q V | | | | 4+15 0.3364 1.09 Q V | | | | 4+20 0.3440 1.09 Q V | | | | 4+25 0.3515 1.10 Q V | | | | 4+30 0.3591 1.10 Q V | | | | 4+35 0.3667 1.11 Q V | | | | 4+40 0.3744 1.11 Q V | | | | 4+45 0.3821 1.12 Q V | | | | 4+50 0.3898 1.12 Q V | | | | 4+55 0.3976 1.13 Q V | | | | 5+ 0 0.4054 1.13 Q V | | | | 5+ 5 0.4132 1.14 Q V | | | | 5+10 0.4210 1.14 Q V | | | | 5+15 0.4289 1.14 Q V | | | | 5+20 0.4368 1.15 Q V | | | | 5+25 0.4448 1.15 Q V | | | | 5+30 0.4528 1.16 Q V | | | | 5+35 0.4608 1.16 Q V | | | | 5+40 0.4688 1.17 Q V | | | | 5+45 0.4769 1.18 Q V | | | | 5+50 0.4851 1.18 Q V | | | | 5+55 0.4932 1.19 Q V | | | | 6+ 0 0.5014 1.19 Q V | | | | 6+ 5 0.5097 1.20 Q V | | | | 6+10 0.5179 1.20 Q V | | | | 6+15 0.5263 1.21 Q V | | | | 6+20 0.5346 1.21 Q V | | | | 6+25 0.5430 1.22 Q V | | | | 6+30 0.5515 1.22 Q V | | | | 6+35 0.5599 1.23 Q V | | | | 6+40 0.5684 1.24 Q V | | | | 6+45 0.5770 1.24 Q V | | | | 6+50 0.5856 1.25 Q V | | | | 6+55 0.5943 1.26 Q V | | | | 7+ 0 0.6029 1.26 Q V | | | | 7+ 5 0.6117 1.27 Q V | | | | 7+10 0.6205 1.27 Q V | | | | 7+15 0.6293 1.28 Q V | | | | 7+20 0.6382 1.29 Q V | | | | 7+25 0.6471 1.29 Q V | | | | 7+30 0.6560 1.30 Q V | | | | 7+35 0.6650 1.31 Q V | | | | 7+40 0.6741 1.32 Q V | | | | 7+45 0.6832 1.32 Q V | | | | 7+50 0.6924 1.33 Q V | | | | 7+55 0.7016 1.34 Q V | | | | 8+ 0 0.7109 1.35 Q V | | | | 8+ 5 0.7202 1.35 Q V | | | | 8+10 0.7295 1.36 Q V | | | | 8+15 0.7390 1.37 Q V | | | | 8+20 0.7485 1.38 Q V | | | | 8+25 0.7580 1.39 Q V | | | | 8+30 0.7676 1.39 Q V | | | | 8+35 0.7772 1.40 Q V | | | | 8+40 0.7870 1.41 Q V | | | | 8+45 0.7967 1.42 Q V | | | | 8+50 0.8066 1.43 Q V | | | | 8+55 0.8165 1.44 Q V | | | | 9+ 0 0.8264 1.45 Q V | | | | 9+ 5 0.8365 1.46 Q V | | | | 9+10 0.8466 1.47 Q V | | | | 9+15 0.8567 1.48 Q V | | | | 9+20 0.8669 1.49 Q V | | | | 9+25 0.8772 1.50 Q V | | | | 9+30 0.8876 1.51 |Q V | | | | 9+35 0.8981 1.52 |Q V | | | | 9+40 0.9086 1.53 |Q V | | | | 9+45 0.9192 1.54 |Q V | | | | 9+50 0.9298 1.55 |Q V | | | | 9+55 0.9406 1.56 |Q V | | | | 10+ 0 0.9514 1.57 |Q V | | | | 10+ 5 0.9623 1.58 |Q V | | | | 10+10 0.9733 1.60 |Q V | | | | 10+15 0.9844 1.61 |Q V | | | | 10+20 0.9955 1.62 |Q V | | | | 10+25 1.0068 1.63 |Q V | | | | 10+30 1.0181 1.65 |Q V | | | | 10+35 1.0296 1.66 |Q V | | | | 10+40 1.0411 1.67 |Q V | | | | 10+45 1.0528 1.69 |Q V | | | | 10+50 1.0645 1.70 |Q V| | | | 10+55 1.0763 1.72 |Q V| | | | 11+ 0 1.0883 1.73 |Q V| | | | 11+ 5 1.1003 1.75 |Q V| | | | 11+10 1.1125 1.77 |Q V| | | | 11+15 1.1247 1.78 |Q V| | | | 11+20 1.1371 1.80 |Q V| | | | 11+25 1.1496 1.82 |Q V| | | | 11+30 1.1623 1.83 |Q V| | | | 11+35 1.1750 1.85 |Q V| | | | 11+40 1.1879 1.87 |Q V | | | 11+45 1.2009 1.89 |Q V | | | 11+50 1.2141 1.91 |Q V | | | 11+55 1.2274 1.93 |Q V | | | 12+ 0 1.2408 1.95 |Q V | | | 12+ 5 1.2545 1.98 |Q V | | | 12+10 1.2687 2.06 |Q V | | | 12+15 1.2838 2.19 |Q V | | | 12+20 1.2995 2.28 |Q |V | | | 12+25 1.3155 2.33 |Q |V | | | 12+30 1.3318 2.37 |Q |V | | | 12+35 1.3484 2.40 |Q |V | | | 12+40 1.3651 2.43 |Q |V | | | 12+45 1.3820 2.46 |Q |V | | | 12+50 1.3991 2.49 |Q |V | | | 12+55 1.4164 2.52 |Q |V | | | 13+ 0 1.4340 2.55 |Q | V | | | 13+ 5 1.4518 2.58 |Q | V | | | 13+10 1.4698 2.62 |Q | V | | | 13+15 1.4881 2.65 |Q | V | | | 13+20 1.5066 2.69 |Q | V | | | 13+25 1.5254 2.73 |Q | V | | | 13+30 1.5445 2.77 |Q | V | | | 13+35 1.5639 2.81 |Q | V | | | 13+40 1.5835 2.86 |Q | V | | | 13+45 1.6036 2.91 |Q | V | | | 13+50 1.6239 2.96 |Q | V | | | 13+55 1.6446 3.01 | Q | V | | | 14+ 0 1.6657 3.06 | Q | V | | | 14+ 5 1.6872 3.12 | Q | V | | | 14+10 1.7092 3.19 | Q | V | | | 14+15 1.7316 3.25 | Q | V | | | 14+20 1.7545 3.32 | Q | V | | | 14+25 1.7779 3.40 | Q | V | | | 14+30 1.8019 3.48 | Q | V | | | 14+35 1.8264 3.57 | Q | V | | | 14+40 1.8516 3.66 | Q | V | | | 14+45 1.8775 3.76 | Q | V | | | 14+50 1.9041 3.87 | Q | V | | | 14+55 1.9316 3.99 | Q | V | | | 15+ 0 1.9600 4.12 | Q | V | | | 15+ 5 1.9893 4.26 | Q | V | | | 15+10 2.0198 4.42 | Q | V | | | 15+15 2.0515 4.61 | Q | V | | | 15+20 2.0846 4.81 | Q | V | | | 15+25 2.1191 5.01 | Q | V | | | 15+30 2.1539 5.04 | Q | V | | | 15+35 2.1880 4.96 | Q | V | | | 15+40 2.2230 5.08 | Q | V | | | 15+45 2.2606 5.46 | Q | V| | | 15+50 2.3025 6.08 | Q | V| | | 15+55 2.3514 7.10 | Q | V| | | 16+ 0 2.4160 9.38 | Q | V | | 16+ 5 2.5367 17.52 | |Q |V | | 16+10 2.7983 37.99 | | | V Q | | 16+15 3.1536 51.59 | | | V | Q | 16+20 3.4059 36.64 | | | Q V | | 16+25 3.5329 18.44 | | Q | V| | 16+30 3.6012 9.91 | Q | | V | 16+35 3.6468 6.62 | Q | | V | 16+40 3.6855 5.62 | Q | | |V | 16+45 3.7180 4.73 | Q | | |V | 16+50 3.7481 4.37 | Q | | |V | 16+55 3.7762 4.07 | Q | | |V | 17+ 0 3.8026 3.83 | Q | | | V | 17+ 5 3.8275 3.63 | Q | | | V | 17+10 3.8513 3.45 | Q | | | V | 17+15 3.8740 3.29 | Q | | | V | 17+20 3.8957 3.16 | Q | | | V | 17+25 3.9167 3.04 | Q | | | V | 17+30 3.9369 2.93 |Q | | | V | 17+35 3.9564 2.84 |Q | | | V | 17+40 3.9754 2.75 |Q | | | V | 17+45 3.9938 2.67 |Q | | | V | 17+50 4.0117 2.60 |Q | | | V | 17+55 4.0292 2.53 |Q | | | V | 18+ 0 4.0462 2.47 |Q | | | V | 18+ 5 4.0628 2.40 |Q | | | V | 18+10 4.0785 2.29 |Q | | | V | 18+15 4.0933 2.14 |Q | | | V | 18+20 4.1072 2.03 |Q | | | V | 18+25 4.1207 1.95 |Q | | | V | 18+30 4.1338 1.90 |Q | | | V | 18+35 4.1466 1.86 |Q | | | V | 18+40 4.1592 1.83 |Q | | | V | 18+45 4.1715 1.79 |Q | | | V | 18+50 4.1837 1.76 |Q | | | V | 18+55 4.1955 1.73 |Q | | | V | 19+ 0 4.2072 1.70 |Q | | | V | 19+ 5 4.2187 1.67 |Q | | | V | 19+10 4.2300 1.64 |Q | | | V | 19+15 4.2411 1.61 |Q | | | V | 19+20 4.2521 1.59 |Q | | | V | 19+25 4.2629 1.57 |Q | | | V | 19+30 4.2735 1.54 |Q | | | V | 19+35 4.2840 1.52 |Q | | | V | 19+40 4.2943 1.50 |Q | | | V | 19+45 4.3045 1.48 Q | | | V | 19+50 4.3146 1.46 Q | | | V | 19+55 4.3245 1.44 Q | | | V | 20+ 0 4.3343 1.42 Q | | | V | 20+ 5 4.3440 1.41 Q | | | V | 20+10 4.3536 1.39 Q | | | V | 20+15 4.3630 1.37 Q | | | V | 20+20 4.3724 1.36 Q | | | V | 20+25 4.3816 1.34 Q | | | V | 20+30 4.3907 1.33 Q | | | V | 20+35 4.3998 1.31 Q | | | V | 20+40 4.4087 1.30 Q | | | V | 20+45 4.4176 1.28 Q | | | V | 20+50 4.4263 1.27 Q | | | V | 20+55 4.4350 1.26 Q | | | V | 21+ 0 4.4436 1.25 Q | | | V | 21+ 5 4.4521 1.23 Q | | | V | 21+10 4.4605 1.22 Q | | | V | 21+15 4.4688 1.21 Q | | | V | 21+20 4.4771 1.20 Q | | | V | 21+25 4.4852 1.19 Q | | | V | 21+30 4.4934 1.18 Q | | | V | 21+35 4.5014 1.17 Q | | | V | 21+40 4.5094 1.16 Q | | | V | 21+45 4.5173 1.15 Q | | | V | 21+50 4.5251 1.14 Q | | | V | 21+55 4.5329 1.13 Q | | | V | 22+ 0 4.5406 1.12 Q | | | V | 22+ 5 4.5482 1.11 Q | | | V | 22+10 4.5558 1.10 Q | | | V | 22+15 4.5633 1.09 Q | | | V | 22+20 4.5708 1.08 Q | | | V | 22+25 4.5782 1.08 Q | | | V | 22+30 4.5855 1.07 Q | | | V | 22+35 4.5928 1.06 Q | | | V | 22+40 4.6001 1.05 Q | | | V | 22+45 4.6073 1.04 Q | | | V| 22+50 4.6144 1.04 Q | | | V| 22+55 4.6215 1.03 Q | | | V| 23+ 0 4.6285 1.02 Q | | | V| 23+ 5 4.6355 1.02 Q | | | V| 23+10 4.6425 1.01 Q | | | V| 23+15 4.6494 1.00 Q | | | V| 23+20 4.6562 0.99 Q | | | V| 23+25 4.6630 0.99 Q | | | V| 23+30 4.6698 0.98 Q | | | V| 23+35 4.6765 0.98 Q | | | V| 23+40 4.6832 0.97 Q | | | V| 23+45 4.6898 0.96 Q | | | V| 23+50 4.6964 0.96 Q | | | V| 23+55 4.7030 0.95 Q | | | V| 24+ 0 4.7095 0.95 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/23/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 100-YEAR, UNIT HYDROGRAPH PRE-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 100 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 25 8.22 1 1.02 -------------------------------------------------------------------- Rainfall data for year 25 8.22 6 2.49 -------------------------------------------------------------------- Rainfall data for year 25 8.22 24 4.57 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 8.22 1.000 0.978 0.900 0.880 Area-averaged adjusted loss rate Fm (In/Hr) = 0.880 ********* Area-Averaged low loss rate fraction, Yb ********** Note: Per City of Fontana Master Storm Drain Plan, the 100-year pre-condition flow rates shall be calculated using 25-year rainfall Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 7.40 0.900 32.0 32.0 21.25 0.001 0.82 0.100 98.0 98.0 0.20 0.948 Area-averaged catchment yield fraction, Y = 0.096 Area-averaged low loss fraction, Yb = 0.904 User entry of time of concentration = 0.303 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 8.22(Ac.) Catchment Lag time = 0.243 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 34.3614 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.880(In/Hr) Average low loss rate fraction (Yb) = 0.904 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.378(In) Computed peak 30-minute rainfall = 0.773(In) Specified peak 1-hour rainfall = 1.020(In) Computed peak 3-hour rainfall = 1.763(In) Specified peak 6-hour rainfall = 2.490(In) Specified peak 24-hour rainfall = 4.570(In) Rainfall depth area reduction factors: Using a total area of 8.22(Ac.) (Ref: fig. E-4) 5-minute factor = 1.000 Adjusted rainfall = 0.377(In) 30-minute factor = 1.000 Adjusted rainfall = 0.773(In) 1-hour factor = 1.000 Adjusted rainfall = 1.020(In) 3-hour factor = 1.000 Adjusted rainfall = 1.763(In) 6-hour factor = 1.000 Adjusted rainfall = 2.490(In) 24-hour factor = 1.000 Adjusted rainfall = 4.570(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 99.41 (CFS)) 1 2.380 2.366 2 14.565 12.114 3 37.668 22.967 4 66.447 28.609 5 84.161 17.610 6 92.859 8.646 7 97.015 4.132 8 98.439 1.416 9 99.057 0.615 10 99.673 0.612 11 100.000 0.325 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3774 0.3774 2 0.4979 0.1206 3 0.5856 0.0877 4 0.6570 0.0714 5 0.7184 0.0613 6 0.7727 0.0543 7 0.8219 0.0491 8 0.8670 0.0451 9 0.9088 0.0418 10 0.9479 0.0391 11 0.9847 0.0368 12 1.0196 0.0349 13 1.0611 0.0415 14 1.1010 0.0399 15 1.1396 0.0385 16 1.1768 0.0373 17 1.2129 0.0361 18 1.2480 0.0351 19 1.2820 0.0341 20 1.3152 0.0332 21 1.3476 0.0324 22 1.3792 0.0316 23 1.4101 0.0309 24 1.4404 0.0302 25 1.4700 0.0296 26 1.4990 0.0290 27 1.5274 0.0285 28 1.5554 0.0279 29 1.5828 0.0274 30 1.6098 0.0270 31 1.6363 0.0265 32 1.6624 0.0261 33 1.6881 0.0257 34 1.7134 0.0253 35 1.7383 0.0249 36 1.7629 0.0246 37 1.7872 0.0242 38 1.8111 0.0239 39 1.8346 0.0236 40 1.8579 0.0233 41 1.8809 0.0230 42 1.9036 0.0227 43 1.9261 0.0224 44 1.9483 0.0222 45 1.9702 0.0219 46 1.9919 0.0217 47 2.0133 0.0215 48 2.0346 0.0212 49 2.0556 0.0210 50 2.0764 0.0208 51 2.0969 0.0206 52 2.1173 0.0204 53 2.1375 0.0202 54 2.1575 0.0200 55 2.1773 0.0198 56 2.1969 0.0196 57 2.2164 0.0195 58 2.2357 0.0193 59 2.2548 0.0191 60 2.2738 0.0190 61 2.2926 0.0188 62 2.3112 0.0186 63 2.3297 0.0185 64 2.3480 0.0183 65 2.3663 0.0182 66 2.3843 0.0181 67 2.4022 0.0179 68 2.4200 0.0178 69 2.4377 0.0177 70 2.4552 0.0175 71 2.4726 0.0174 72 2.4899 0.0173 73 2.5050 0.0151 74 2.5200 0.0150 75 2.5349 0.0149 76 2.5496 0.0147 77 2.5643 0.0146 78 2.5788 0.0145 79 2.5932 0.0144 80 2.6075 0.0143 81 2.6218 0.0142 82 2.6359 0.0141 83 2.6499 0.0140 84 2.6639 0.0139 85 2.6777 0.0138 86 2.6915 0.0138 87 2.7051 0.0137 88 2.7187 0.0136 89 2.7322 0.0135 90 2.7456 0.0134 91 2.7589 0.0133 92 2.7722 0.0132 93 2.7853 0.0132 94 2.7984 0.0131 95 2.8114 0.0130 96 2.8243 0.0129 97 2.8372 0.0128 98 2.8500 0.0128 99 2.8627 0.0127 100 2.8753 0.0126 101 2.8878 0.0126 102 2.9003 0.0125 103 2.9128 0.0124 104 2.9251 0.0124 105 2.9374 0.0123 106 2.9496 0.0122 107 2.9618 0.0122 108 2.9739 0.0121 109 2.9859 0.0120 110 2.9979 0.0120 111 3.0098 0.0119 112 3.0216 0.0118 113 3.0334 0.0118 114 3.0451 0.0117 115 3.0568 0.0117 116 3.0684 0.0116 117 3.0800 0.0116 118 3.0915 0.0115 119 3.1029 0.0114 120 3.1143 0.0114 121 3.1257 0.0113 122 3.1370 0.0113 123 3.1482 0.0112 124 3.1594 0.0112 125 3.1705 0.0111 126 3.1816 0.0111 127 3.1926 0.0110 128 3.2036 0.0110 129 3.2146 0.0109 130 3.2255 0.0109 131 3.2363 0.0108 132 3.2471 0.0108 133 3.2579 0.0108 134 3.2686 0.0107 135 3.2792 0.0107 136 3.2899 0.0106 137 3.3004 0.0106 138 3.3110 0.0105 139 3.3214 0.0105 140 3.3319 0.0104 141 3.3423 0.0104 142 3.3527 0.0104 143 3.3630 0.0103 144 3.3733 0.0103 145 3.3835 0.0102 146 3.3937 0.0102 147 3.4039 0.0102 148 3.4140 0.0101 149 3.4241 0.0101 150 3.4341 0.0100 151 3.4441 0.0100 152 3.4541 0.0100 153 3.4640 0.0099 154 3.4739 0.0099 155 3.4838 0.0099 156 3.4936 0.0098 157 3.5034 0.0098 158 3.5132 0.0098 159 3.5229 0.0097 160 3.5326 0.0097 161 3.5422 0.0097 162 3.5519 0.0096 163 3.5615 0.0096 164 3.5710 0.0096 165 3.5805 0.0095 166 3.5900 0.0095 167 3.5995 0.0095 168 3.6089 0.0094 169 3.6183 0.0094 170 3.6277 0.0094 171 3.6370 0.0093 172 3.6463 0.0093 173 3.6556 0.0093 174 3.6648 0.0092 175 3.6740 0.0092 176 3.6832 0.0092 177 3.6923 0.0092 178 3.7015 0.0091 179 3.7106 0.0091 180 3.7196 0.0091 181 3.7287 0.0090 182 3.7377 0.0090 183 3.7467 0.0090 184 3.7556 0.0090 185 3.7645 0.0089 186 3.7734 0.0089 187 3.7823 0.0089 188 3.7912 0.0088 189 3.8000 0.0088 190 3.8088 0.0088 191 3.8175 0.0088 192 3.8263 0.0087 193 3.8350 0.0087 194 3.8437 0.0087 195 3.8524 0.0087 196 3.8610 0.0086 197 3.8696 0.0086 198 3.8782 0.0086 199 3.8868 0.0086 200 3.8953 0.0085 201 3.9038 0.0085 202 3.9123 0.0085 203 3.9208 0.0085 204 3.9293 0.0084 205 3.9377 0.0084 206 3.9461 0.0084 207 3.9545 0.0084 208 3.9628 0.0084 209 3.9712 0.0083 210 3.9795 0.0083 211 3.9878 0.0083 212 3.9960 0.0083 213 4.0043 0.0082 214 4.0125 0.0082 215 4.0207 0.0082 216 4.0289 0.0082 217 4.0370 0.0082 218 4.0452 0.0081 219 4.0533 0.0081 220 4.0614 0.0081 221 4.0695 0.0081 222 4.0775 0.0081 223 4.0856 0.0080 224 4.0936 0.0080 225 4.1016 0.0080 226 4.1095 0.0080 227 4.1175 0.0080 228 4.1254 0.0079 229 4.1334 0.0079 230 4.1412 0.0079 231 4.1491 0.0079 232 4.1570 0.0079 233 4.1648 0.0078 234 4.1726 0.0078 235 4.1804 0.0078 236 4.1882 0.0078 237 4.1960 0.0078 238 4.2037 0.0077 239 4.2115 0.0077 240 4.2192 0.0077 241 4.2269 0.0077 242 4.2345 0.0077 243 4.2422 0.0077 244 4.2498 0.0076 245 4.2575 0.0076 246 4.2651 0.0076 247 4.2726 0.0076 248 4.2802 0.0076 249 4.2878 0.0076 250 4.2953 0.0075 251 4.3028 0.0075 252 4.3103 0.0075 253 4.3178 0.0075 254 4.3253 0.0075 255 4.3327 0.0075 256 4.3402 0.0074 257 4.3476 0.0074 258 4.3550 0.0074 259 4.3624 0.0074 260 4.3697 0.0074 261 4.3771 0.0074 262 4.3844 0.0073 263 4.3917 0.0073 264 4.3991 0.0073 265 4.4063 0.0073 266 4.4136 0.0073 267 4.4209 0.0073 268 4.4281 0.0072 269 4.4354 0.0072 270 4.4426 0.0072 271 4.4498 0.0072 272 4.4570 0.0072 273 4.4641 0.0072 274 4.4713 0.0072 275 4.4784 0.0071 276 4.4855 0.0071 277 4.4927 0.0071 278 4.4998 0.0071 279 4.5068 0.0071 280 4.5139 0.0071 281 4.5210 0.0071 282 4.5280 0.0070 283 4.5350 0.0070 284 4.5420 0.0070 285 4.5490 0.0070 286 4.5560 0.0070 287 4.5630 0.0070 288 4.5700 0.0070 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0070 0.0063 0.0007 2 0.0070 0.0063 0.0007 3 0.0070 0.0063 0.0007 4 0.0070 0.0063 0.0007 5 0.0070 0.0064 0.0007 6 0.0071 0.0064 0.0007 7 0.0071 0.0064 0.0007 8 0.0071 0.0064 0.0007 9 0.0071 0.0064 0.0007 10 0.0071 0.0065 0.0007 11 0.0072 0.0065 0.0007 12 0.0072 0.0065 0.0007 13 0.0072 0.0065 0.0007 14 0.0072 0.0065 0.0007 15 0.0073 0.0066 0.0007 16 0.0073 0.0066 0.0007 17 0.0073 0.0066 0.0007 18 0.0073 0.0066 0.0007 19 0.0074 0.0066 0.0007 20 0.0074 0.0067 0.0007 21 0.0074 0.0067 0.0007 22 0.0074 0.0067 0.0007 23 0.0075 0.0067 0.0007 24 0.0075 0.0068 0.0007 25 0.0075 0.0068 0.0007 26 0.0075 0.0068 0.0007 27 0.0076 0.0068 0.0007 28 0.0076 0.0068 0.0007 29 0.0076 0.0069 0.0007 30 0.0076 0.0069 0.0007 31 0.0077 0.0069 0.0007 32 0.0077 0.0069 0.0007 33 0.0077 0.0070 0.0007 34 0.0077 0.0070 0.0007 35 0.0078 0.0070 0.0007 36 0.0078 0.0070 0.0007 37 0.0078 0.0071 0.0007 38 0.0078 0.0071 0.0008 39 0.0079 0.0071 0.0008 40 0.0079 0.0071 0.0008 41 0.0079 0.0072 0.0008 42 0.0080 0.0072 0.0008 43 0.0080 0.0072 0.0008 44 0.0080 0.0072 0.0008 45 0.0081 0.0073 0.0008 46 0.0081 0.0073 0.0008 47 0.0081 0.0073 0.0008 48 0.0081 0.0074 0.0008 49 0.0082 0.0074 0.0008 50 0.0082 0.0074 0.0008 51 0.0082 0.0075 0.0008 52 0.0083 0.0075 0.0008 53 0.0083 0.0075 0.0008 54 0.0083 0.0075 0.0008 55 0.0084 0.0076 0.0008 56 0.0084 0.0076 0.0008 57 0.0084 0.0076 0.0008 58 0.0085 0.0077 0.0008 59 0.0085 0.0077 0.0008 60 0.0085 0.0077 0.0008 61 0.0086 0.0078 0.0008 62 0.0086 0.0078 0.0008 63 0.0087 0.0078 0.0008 64 0.0087 0.0079 0.0008 65 0.0087 0.0079 0.0008 66 0.0088 0.0079 0.0008 67 0.0088 0.0080 0.0008 68 0.0088 0.0080 0.0008 69 0.0089 0.0080 0.0009 70 0.0089 0.0081 0.0009 71 0.0090 0.0081 0.0009 72 0.0090 0.0081 0.0009 73 0.0091 0.0082 0.0009 74 0.0091 0.0082 0.0009 75 0.0092 0.0083 0.0009 76 0.0092 0.0083 0.0009 77 0.0092 0.0084 0.0009 78 0.0093 0.0084 0.0009 79 0.0093 0.0084 0.0009 80 0.0094 0.0085 0.0009 81 0.0094 0.0085 0.0009 82 0.0095 0.0086 0.0009 83 0.0095 0.0086 0.0009 84 0.0096 0.0086 0.0009 85 0.0096 0.0087 0.0009 86 0.0097 0.0087 0.0009 87 0.0097 0.0088 0.0009 88 0.0098 0.0088 0.0009 89 0.0098 0.0089 0.0009 90 0.0099 0.0089 0.0009 91 0.0099 0.0090 0.0010 92 0.0100 0.0090 0.0010 93 0.0100 0.0091 0.0010 94 0.0101 0.0091 0.0010 95 0.0102 0.0092 0.0010 96 0.0102 0.0092 0.0010 97 0.0103 0.0093 0.0010 98 0.0103 0.0093 0.0010 99 0.0104 0.0094 0.0010 100 0.0104 0.0094 0.0010 101 0.0105 0.0095 0.0010 102 0.0106 0.0096 0.0010 103 0.0107 0.0096 0.0010 104 0.0107 0.0097 0.0010 105 0.0108 0.0098 0.0010 106 0.0108 0.0098 0.0010 107 0.0109 0.0099 0.0010 108 0.0110 0.0099 0.0011 109 0.0111 0.0100 0.0011 110 0.0111 0.0101 0.0011 111 0.0112 0.0102 0.0011 112 0.0113 0.0102 0.0011 113 0.0114 0.0103 0.0011 114 0.0114 0.0104 0.0011 115 0.0116 0.0105 0.0011 116 0.0116 0.0105 0.0011 117 0.0117 0.0106 0.0011 118 0.0118 0.0107 0.0011 119 0.0119 0.0108 0.0011 120 0.0120 0.0108 0.0011 121 0.0121 0.0109 0.0012 122 0.0122 0.0110 0.0012 123 0.0123 0.0111 0.0012 124 0.0124 0.0112 0.0012 125 0.0125 0.0113 0.0012 126 0.0126 0.0114 0.0012 127 0.0127 0.0115 0.0012 128 0.0128 0.0116 0.0012 129 0.0129 0.0117 0.0012 130 0.0130 0.0118 0.0012 131 0.0132 0.0119 0.0013 132 0.0132 0.0120 0.0013 133 0.0134 0.0121 0.0013 134 0.0135 0.0122 0.0013 135 0.0137 0.0124 0.0013 136 0.0138 0.0124 0.0013 137 0.0139 0.0126 0.0013 138 0.0140 0.0127 0.0013 139 0.0142 0.0129 0.0014 140 0.0143 0.0130 0.0014 141 0.0145 0.0131 0.0014 142 0.0146 0.0132 0.0014 143 0.0149 0.0134 0.0014 144 0.0150 0.0135 0.0014 145 0.0173 0.0156 0.0017 146 0.0174 0.0157 0.0017 147 0.0177 0.0160 0.0017 148 0.0178 0.0161 0.0017 149 0.0181 0.0163 0.0017 150 0.0182 0.0165 0.0017 151 0.0185 0.0167 0.0018 152 0.0186 0.0169 0.0018 153 0.0190 0.0171 0.0018 154 0.0191 0.0173 0.0018 155 0.0195 0.0176 0.0019 156 0.0196 0.0178 0.0019 157 0.0200 0.0181 0.0019 158 0.0202 0.0183 0.0019 159 0.0206 0.0186 0.0020 160 0.0208 0.0188 0.0020 161 0.0212 0.0192 0.0020 162 0.0215 0.0194 0.0021 163 0.0219 0.0198 0.0021 164 0.0222 0.0201 0.0021 165 0.0227 0.0205 0.0022 166 0.0230 0.0208 0.0022 167 0.0236 0.0213 0.0023 168 0.0239 0.0216 0.0023 169 0.0246 0.0222 0.0024 170 0.0249 0.0225 0.0024 171 0.0257 0.0232 0.0025 172 0.0261 0.0236 0.0025 173 0.0270 0.0244 0.0026 174 0.0274 0.0248 0.0026 175 0.0285 0.0257 0.0027 176 0.0290 0.0262 0.0028 177 0.0302 0.0273 0.0029 178 0.0309 0.0279 0.0030 179 0.0324 0.0293 0.0031 180 0.0332 0.0300 0.0032 181 0.0351 0.0317 0.0034 182 0.0361 0.0326 0.0035 183 0.0385 0.0348 0.0037 184 0.0399 0.0361 0.0038 185 0.0349 0.0315 0.0033 186 0.0368 0.0333 0.0035 187 0.0418 0.0378 0.0040 188 0.0451 0.0408 0.0043 189 0.0543 0.0491 0.0052 190 0.0613 0.0555 0.0059 191 0.0877 0.0733 0.0143 192 0.1206 0.0733 0.0472 193 0.3774 0.0733 0.3040 194 0.0714 0.0646 0.0068 195 0.0491 0.0444 0.0047 196 0.0391 0.0354 0.0037 197 0.0415 0.0375 0.0040 198 0.0373 0.0337 0.0036 199 0.0341 0.0308 0.0033 200 0.0316 0.0286 0.0030 201 0.0296 0.0268 0.0028 202 0.0279 0.0253 0.0027 203 0.0265 0.0240 0.0025 204 0.0253 0.0229 0.0024 205 0.0242 0.0219 0.0023 206 0.0233 0.0211 0.0022 207 0.0224 0.0203 0.0021 208 0.0217 0.0196 0.0021 209 0.0210 0.0190 0.0020 210 0.0204 0.0184 0.0020 211 0.0198 0.0179 0.0019 212 0.0193 0.0174 0.0018 213 0.0188 0.0170 0.0018 214 0.0183 0.0166 0.0018 215 0.0179 0.0162 0.0017 216 0.0175 0.0159 0.0017 217 0.0151 0.0136 0.0014 218 0.0147 0.0133 0.0014 219 0.0144 0.0130 0.0014 220 0.0141 0.0128 0.0014 221 0.0138 0.0125 0.0013 222 0.0136 0.0123 0.0013 223 0.0133 0.0120 0.0013 224 0.0131 0.0118 0.0013 225 0.0128 0.0116 0.0012 226 0.0126 0.0114 0.0012 227 0.0124 0.0112 0.0012 228 0.0122 0.0111 0.0012 229 0.0120 0.0109 0.0012 230 0.0118 0.0107 0.0011 231 0.0117 0.0106 0.0011 232 0.0115 0.0104 0.0011 233 0.0113 0.0103 0.0011 234 0.0112 0.0101 0.0011 235 0.0110 0.0100 0.0011 236 0.0109 0.0098 0.0010 237 0.0108 0.0097 0.0010 238 0.0106 0.0096 0.0010 239 0.0105 0.0095 0.0010 240 0.0104 0.0094 0.0010 241 0.0102 0.0093 0.0010 242 0.0101 0.0092 0.0010 243 0.0100 0.0091 0.0010 244 0.0099 0.0090 0.0009 245 0.0098 0.0089 0.0009 246 0.0097 0.0088 0.0009 247 0.0096 0.0087 0.0009 248 0.0095 0.0086 0.0009 249 0.0094 0.0085 0.0009 250 0.0093 0.0084 0.0009 251 0.0092 0.0083 0.0009 252 0.0091 0.0082 0.0009 253 0.0090 0.0082 0.0009 254 0.0090 0.0081 0.0009 255 0.0089 0.0080 0.0008 256 0.0088 0.0080 0.0008 257 0.0087 0.0079 0.0008 258 0.0086 0.0078 0.0008 259 0.0086 0.0077 0.0008 260 0.0085 0.0077 0.0008 261 0.0084 0.0076 0.0008 262 0.0084 0.0076 0.0008 263 0.0083 0.0075 0.0008 264 0.0082 0.0074 0.0008 265 0.0082 0.0074 0.0008 266 0.0081 0.0073 0.0008 267 0.0080 0.0073 0.0008 268 0.0080 0.0072 0.0008 269 0.0079 0.0072 0.0008 270 0.0079 0.0071 0.0008 271 0.0078 0.0071 0.0007 272 0.0077 0.0070 0.0007 273 0.0077 0.0070 0.0007 274 0.0076 0.0069 0.0007 275 0.0076 0.0069 0.0007 276 0.0075 0.0068 0.0007 277 0.0075 0.0068 0.0007 278 0.0074 0.0067 0.0007 279 0.0074 0.0067 0.0007 280 0.0073 0.0066 0.0007 281 0.0073 0.0066 0.0007 282 0.0072 0.0066 0.0007 283 0.0072 0.0065 0.0007 284 0.0072 0.0065 0.0007 285 0.0071 0.0064 0.0007 286 0.0071 0.0064 0.0007 287 0.0070 0.0064 0.0007 288 0.0070 0.0063 0.0007 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 3.82(In) Total effective rainfall = 0.75(In) Peak flow rate in flood hydrograph = 9.91(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 2.5 5.0 7.5 10.0 ----------------------------------------------------------------------- 0+ 5 0.0000 0.00 Q | | | | 0+10 0.0001 0.01 Q | | | | 0+15 0.0002 0.02 Q | | | | 0+20 0.0006 0.04 Q | | | | 0+25 0.0009 0.06 Q | | | | 0+30 0.0014 0.06 Q | | | | 0+35 0.0018 0.06 Q | | | | 0+40 0.0023 0.07 Q | | | | 0+45 0.0027 0.07 Q | | | | 0+50 0.0032 0.07 Q | | | | 0+55 0.0037 0.07 Q | | | | 1+ 0 0.0041 0.07 Q | | | | 1+ 5 0.0046 0.07 Q | | | | 1+10 0.0051 0.07 Q | | | | 1+15 0.0055 0.07 Q | | | | 1+20 0.0060 0.07 Q | | | | 1+25 0.0065 0.07 Q | | | | 1+30 0.0070 0.07 Q | | | | 1+35 0.0074 0.07 Q | | | | 1+40 0.0079 0.07 Q | | | | 1+45 0.0084 0.07 Q | | | | 1+50 0.0089 0.07 Q | | | | 1+55 0.0094 0.07 Q | | | | 2+ 0 0.0098 0.07 Q | | | | 2+ 5 0.0103 0.07 Q | | | | 2+10 0.0108 0.07 Q | | | | 2+15 0.0113 0.07 Q | | | | 2+20 0.0118 0.07 Q | | | | 2+25 0.0123 0.07 Q | | | | 2+30 0.0128 0.07 Q | | | | 2+35 0.0133 0.07 QV | | | | 2+40 0.0138 0.07 QV | | | | 2+45 0.0143 0.07 QV | | | | 2+50 0.0148 0.07 QV | | | | 2+55 0.0153 0.07 QV | | | | 3+ 0 0.0158 0.07 QV | | | | 3+ 5 0.0163 0.07 QV | | | | 3+10 0.0168 0.07 QV | | | | 3+15 0.0173 0.07 QV | | | | 3+20 0.0178 0.07 QV | | | | 3+25 0.0183 0.07 QV | | | | 3+30 0.0189 0.07 QV | | | | 3+35 0.0194 0.08 QV | | | | 3+40 0.0199 0.08 QV | | | | 3+45 0.0204 0.08 QV | | | | 3+50 0.0209 0.08 QV | | | | 3+55 0.0215 0.08 QV | | | | 4+ 0 0.0220 0.08 QV | | | | 4+ 5 0.0225 0.08 QV | | | | 4+10 0.0231 0.08 QV | | | | 4+15 0.0236 0.08 QV | | | | 4+20 0.0241 0.08 QV | | | | 4+25 0.0247 0.08 QV | | | | 4+30 0.0252 0.08 QV | | | | 4+35 0.0257 0.08 Q V | | | | 4+40 0.0263 0.08 Q V | | | | 4+45 0.0268 0.08 Q V | | | | 4+50 0.0274 0.08 Q V | | | | 4+55 0.0279 0.08 Q V | | | | 5+ 0 0.0285 0.08 Q V | | | | 5+ 5 0.0290 0.08 Q V | | | | 5+10 0.0296 0.08 Q V | | | | 5+15 0.0302 0.08 Q V | | | | 5+20 0.0307 0.08 Q V | | | | 5+25 0.0313 0.08 Q V | | | | 5+30 0.0319 0.08 Q V | | | | 5+35 0.0324 0.08 Q V | | | | 5+40 0.0330 0.08 Q V | | | | 5+45 0.0336 0.08 Q V | | | | 5+50 0.0342 0.08 Q V | | | | 5+55 0.0347 0.08 Q V | | | | 6+ 0 0.0353 0.08 Q V | | | | 6+ 5 0.0359 0.09 Q V | | | | 6+10 0.0365 0.09 Q V | | | | 6+15 0.0371 0.09 Q V | | | | 6+20 0.0377 0.09 Q V | | | | 6+25 0.0383 0.09 Q V | | | | 6+30 0.0389 0.09 Q V | | | | 6+35 0.0395 0.09 Q V | | | | 6+40 0.0401 0.09 Q V | | | | 6+45 0.0407 0.09 Q V | | | | 6+50 0.0413 0.09 Q V | | | | 6+55 0.0419 0.09 Q V | | | | 7+ 0 0.0425 0.09 Q V | | | | 7+ 5 0.0431 0.09 Q V | | | | 7+10 0.0438 0.09 Q V | | | | 7+15 0.0444 0.09 Q V | | | | 7+20 0.0450 0.09 Q V | | | | 7+25 0.0457 0.09 Q V | | | | 7+30 0.0463 0.09 Q V | | | | 7+35 0.0469 0.09 Q V | | | | 7+40 0.0476 0.09 Q V | | | | 7+45 0.0482 0.09 Q V | | | | 7+50 0.0489 0.09 Q V | | | | 7+55 0.0495 0.09 Q V | | | | 8+ 0 0.0502 0.10 Q V | | | | 8+ 5 0.0509 0.10 Q V | | | | 8+10 0.0515 0.10 Q V | | | | 8+15 0.0522 0.10 Q V | | | | 8+20 0.0529 0.10 Q V | | | | 8+25 0.0535 0.10 Q V | | | | 8+30 0.0542 0.10 Q V | | | | 8+35 0.0549 0.10 Q V | | | | 8+40 0.0556 0.10 Q V | | | | 8+45 0.0563 0.10 Q V | | | | 8+50 0.0570 0.10 Q V | | | | 8+55 0.0577 0.10 Q V | | | | 9+ 0 0.0584 0.10 Q V | | | | 9+ 5 0.0591 0.10 Q V | | | | 9+10 0.0598 0.10 Q V | | | | 9+15 0.0605 0.10 Q V | | | | 9+20 0.0613 0.11 Q V | | | | 9+25 0.0620 0.11 Q V | | | | 9+30 0.0627 0.11 Q V | | | | 9+35 0.0635 0.11 Q V | | | | 9+40 0.0642 0.11 Q V | | | | 9+45 0.0650 0.11 Q V | | | | 9+50 0.0657 0.11 Q V | | | | 9+55 0.0665 0.11 Q V | | | | 10+ 0 0.0673 0.11 Q V | | | | 10+ 5 0.0680 0.11 Q V | | | | 10+10 0.0688 0.11 Q V | | | | 10+15 0.0696 0.11 Q V | | | | 10+20 0.0704 0.11 Q V | | | | 10+25 0.0712 0.12 Q V | | | | 10+30 0.0720 0.12 Q V | | | | 10+35 0.0728 0.12 Q V | | | | 10+40 0.0736 0.12 Q V | | | | 10+45 0.0744 0.12 Q V | | | | 10+50 0.0753 0.12 Q V | | | | 10+55 0.0761 0.12 Q V | | | | 11+ 0 0.0770 0.12 Q V | | | | 11+ 5 0.0778 0.12 Q V | | | | 11+10 0.0787 0.13 Q V | | | | 11+15 0.0795 0.13 Q V | | | | 11+20 0.0804 0.13 Q V | | | | 11+25 0.0813 0.13 Q V | | | | 11+30 0.0822 0.13 Q V | | | | 11+35 0.0831 0.13 Q V | | | | 11+40 0.0840 0.13 Q V | | | | 11+45 0.0849 0.13 Q V | | | | 11+50 0.0859 0.14 Q V | | | | 11+55 0.0868 0.14 Q V | | | | 12+ 0 0.0878 0.14 Q V | | | | 12+ 5 0.0887 0.14 Q V | | | | 12+10 0.0897 0.14 Q V | | | | 12+15 0.0908 0.15 Q V | | | | 12+20 0.0918 0.16 Q V | | | | 12+25 0.0930 0.16 Q V | | | | 12+30 0.0941 0.17 Q V | | | | 12+35 0.0953 0.17 Q V | | | | 12+40 0.0965 0.17 Q V | | | | 12+45 0.0976 0.17 Q V | | | | 12+50 0.0989 0.18 Q V | | | | 12+55 0.1001 0.18 Q V | | | | 13+ 0 0.1013 0.18 Q V | | | | 13+ 5 0.1026 0.18 Q V | | | | 13+10 0.1038 0.18 Q V | | | | 13+15 0.1051 0.19 Q V | | | | 13+20 0.1064 0.19 Q V | | | | 13+25 0.1078 0.19 Q V | | | | 13+30 0.1091 0.20 Q V | | | | 13+35 0.1105 0.20 Q V | | | | 13+40 0.1119 0.20 Q V | | | | 13+45 0.1133 0.20 Q V | | | | 13+50 0.1147 0.21 Q V | | | | 13+55 0.1162 0.21 Q V| | | | 14+ 0 0.1177 0.22 Q V| | | | 14+ 5 0.1192 0.22 Q V| | | | 14+10 0.1207 0.22 Q V| | | | 14+15 0.1223 0.23 Q V| | | | 14+20 0.1239 0.23 Q V| | | | 14+25 0.1255 0.24 Q V| | | | 14+30 0.1272 0.24 Q V| | | | 14+35 0.1289 0.25 Q V | | | 14+40 0.1307 0.26 |Q V | | | 14+45 0.1325 0.26 |Q V | | | 14+50 0.1344 0.27 |Q V | | | 14+55 0.1363 0.28 |Q V | | | 15+ 0 0.1382 0.29 |Q V | | | 15+ 5 0.1403 0.30 |Q V | | | 15+10 0.1424 0.31 |Q |V | | | 15+15 0.1446 0.32 |Q |V | | | 15+20 0.1469 0.33 |Q |V | | | 15+25 0.1493 0.35 |Q |V | | | 15+30 0.1517 0.35 |Q |V | | | 15+35 0.1542 0.36 |Q | V | | | 15+40 0.1566 0.36 |Q | V | | | 15+45 0.1592 0.37 |Q | V | | | 15+50 0.1620 0.41 |Q | V | | | 15+55 0.1653 0.47 |Q | V | | | 16+ 0 0.1701 0.70 | Q | V | | | 16+ 5 0.1835 1.94 | Q | V | | | 16+10 0.2205 5.37 | | V |Q | | 16+15 0.2809 8.76 | | |V | Q | 16+20 0.3492 9.91 | | | V | Q| 16+25 0.3918 6.20 | | | Q V | 16+30 0.4142 3.25 | | Q | | V | 16+35 0.4261 1.73 | Q | | | V | 16+40 0.4320 0.85 | Q | | | V | 16+45 0.4359 0.57 | Q | | | V | 16+50 0.4395 0.53 | Q | | | V | 16+55 0.4423 0.41 |Q | | | V | 17+ 0 0.4443 0.29 |Q | | | V | 17+ 5 0.4462 0.27 |Q | | | V | 17+10 0.4480 0.26 |Q | | | V | 17+15 0.4496 0.24 Q | | | V | 17+20 0.4512 0.23 Q | | | V | 17+25 0.4528 0.22 Q | | | V | 17+30 0.4543 0.22 Q | | | V | 17+35 0.4557 0.21 Q | | | V | 17+40 0.4571 0.20 Q | | | V | 17+45 0.4584 0.20 Q | | | V | 17+50 0.4597 0.19 Q | | | V | 17+55 0.4610 0.18 Q | | | V | 18+ 0 0.4623 0.18 Q | | | V | 18+ 5 0.4635 0.17 Q | | | V | 18+10 0.4646 0.17 Q | | | V | 18+15 0.4657 0.16 Q | | | V | 18+20 0.4668 0.15 Q | | | V | 18+25 0.4677 0.14 Q | | | V | 18+30 0.4687 0.14 Q | | | V | 18+35 0.4696 0.14 Q | | | V | 18+40 0.4706 0.13 Q | | | V | 18+45 0.4714 0.13 Q | | | V | 18+50 0.4723 0.13 Q | | | V | 18+55 0.4732 0.12 Q | | | V | 19+ 0 0.4740 0.12 Q | | | V | 19+ 5 0.4749 0.12 Q | | | V | 19+10 0.4757 0.12 Q | | | V | 19+15 0.4765 0.12 Q | | | V | 19+20 0.4773 0.11 Q | | | V | 19+25 0.4780 0.11 Q | | | V | 19+30 0.4788 0.11 Q | | | V | 19+35 0.4796 0.11 Q | | | V | 19+40 0.4803 0.11 Q | | | V | 19+45 0.4811 0.11 Q | | | V | 19+50 0.4818 0.11 Q | | | V | 19+55 0.4825 0.10 Q | | | V | 20+ 0 0.4832 0.10 Q | | | V | 20+ 5 0.4839 0.10 Q | | | V | 20+10 0.4846 0.10 Q | | | V | 20+15 0.4853 0.10 Q | | | V | 20+20 0.4859 0.10 Q | | | V | 20+25 0.4866 0.10 Q | | | V | 20+30 0.4873 0.10 Q | | | V | 20+35 0.4879 0.09 Q | | | V | 20+40 0.4886 0.09 Q | | | V | 20+45 0.4892 0.09 Q | | | V | 20+50 0.4898 0.09 Q | | | V | 20+55 0.4904 0.09 Q | | | V | 21+ 0 0.4911 0.09 Q | | | V | 21+ 5 0.4917 0.09 Q | | | V | 21+10 0.4923 0.09 Q | | | V | 21+15 0.4929 0.09 Q | | | V | 21+20 0.4935 0.09 Q | | | V | 21+25 0.4941 0.09 Q | | | V | 21+30 0.4946 0.08 Q | | | V | 21+35 0.4952 0.08 Q | | | V | 21+40 0.4958 0.08 Q | | | V | 21+45 0.4963 0.08 Q | | | V | 21+50 0.4969 0.08 Q | | | V | 21+55 0.4975 0.08 Q | | | V | 22+ 0 0.4980 0.08 Q | | | V | 22+ 5 0.4986 0.08 Q | | | V | 22+10 0.4991 0.08 Q | | | V| 22+15 0.4997 0.08 Q | | | V| 22+20 0.5002 0.08 Q | | | V| 22+25 0.5007 0.08 Q | | | V| 22+30 0.5012 0.08 Q | | | V| 22+35 0.5018 0.08 Q | | | V| 22+40 0.5023 0.08 Q | | | V| 22+45 0.5028 0.07 Q | | | V| 22+50 0.5033 0.07 Q | | | V| 22+55 0.5038 0.07 Q | | | V| 23+ 0 0.5043 0.07 Q | | | V| 23+ 5 0.5048 0.07 Q | | | V| 23+10 0.5053 0.07 Q | | | V| 23+15 0.5058 0.07 Q | | | V| 23+20 0.5063 0.07 Q | | | V| 23+25 0.5068 0.07 Q | | | V| 23+30 0.5073 0.07 Q | | | V| 23+35 0.5078 0.07 Q | | | V| 23+40 0.5082 0.07 Q | | | V| 23+45 0.5087 0.07 Q | | | V| 23+50 0.5092 0.07 Q | | | V| 23+55 0.5097 0.07 Q | | | V| 24+ 0 0.5101 0.07 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.5 UNIT HYDROGRAPH ANALYSIS POST-DEVELOPMENT CONDITIONS – 2 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 2 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 2 Antecedent Moisture Condition = 1 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 2 24.47 1 0.52 -------------------------------------------------------------------- Rainfall data for year 2 24.47 6 1.36 -------------------------------------------------------------------- Rainfall data for year 2 24.47 24 2.46 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 1) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 16.6 24.47 1.000 1.000 0.120 0.120 Area-averaged adjusted loss rate Fm (In/Hr) = 0.120 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC1) Yield Fr 2.94 0.120 32.0 16.6 12.30 0.000 21.53 0.880 98.0 98.0 0.20 0.907 Area-averaged catchment yield fraction, Y = 0.798 Area-averaged low loss fraction, Yb = 0.202 User entry of time of concentration = 0.145 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 24.47(Ac.) Catchment Lag time = 0.116 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 72.0212 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.120(In/Hr) Average low loss rate fraction (Yb) = 0.202 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.192(In) Computed peak 30-minute rainfall = 0.393(In) Specified peak 1-hour rainfall = 0.518(In) Computed peak 3-hour rainfall = 0.936(In) Specified peak 6-hour rainfall = 1.360(In) Specified peak 24-hour rainfall = 2.460(In) Rainfall depth area reduction factors: Using a total area of 24.47(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.191(In) 30-minute factor = 0.999 Adjusted rainfall = 0.392(In) 1-hour factor = 0.999 Adjusted rainfall = 0.517(In) 3-hour factor = 1.000 Adjusted rainfall = 0.936(In) 6-hour factor = 1.000 Adjusted rainfall = 1.360(In) 24-hour factor = 1.000 Adjusted rainfall = 2.460(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 295.93 (CFS)) 1 9.266 27.422 2 55.659 137.291 3 90.486 103.067 4 98.166 22.727 5 100.000 5.428 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.1915 0.1915 2 0.2527 0.0612 3 0.2972 0.0445 4 0.3334 0.0362 5 0.3645 0.0311 6 0.3921 0.0276 7 0.4171 0.0249 8 0.4399 0.0229 9 0.4612 0.0212 10 0.4810 0.0199 11 0.4997 0.0187 12 0.5174 0.0177 13 0.5402 0.0228 14 0.5623 0.0220 15 0.5836 0.0213 16 0.6043 0.0207 17 0.6244 0.0201 18 0.6440 0.0196 19 0.6630 0.0191 20 0.6816 0.0186 21 0.6998 0.0182 22 0.7176 0.0178 23 0.7350 0.0174 24 0.7521 0.0171 25 0.7689 0.0168 26 0.7853 0.0164 27 0.8015 0.0162 28 0.8173 0.0159 29 0.8330 0.0156 30 0.8483 0.0154 31 0.8635 0.0151 32 0.8784 0.0149 33 0.8931 0.0147 34 0.9076 0.0145 35 0.9219 0.0143 36 0.9361 0.0141 37 0.9500 0.0139 38 0.9637 0.0137 39 0.9773 0.0136 40 0.9907 0.0134 41 1.0040 0.0133 42 1.0171 0.0131 43 1.0301 0.0130 44 1.0429 0.0128 45 1.0557 0.0127 46 1.0682 0.0126 47 1.0807 0.0125 48 1.0930 0.0123 49 1.1052 0.0122 50 1.1173 0.0121 51 1.1293 0.0120 52 1.1412 0.0119 53 1.1530 0.0118 54 1.1646 0.0117 55 1.1762 0.0116 56 1.1877 0.0115 57 1.1991 0.0114 58 1.2103 0.0113 59 1.2215 0.0112 60 1.2327 0.0111 61 1.2437 0.0110 62 1.2546 0.0109 63 1.2655 0.0109 64 1.2763 0.0108 65 1.2870 0.0107 66 1.2976 0.0106 67 1.3082 0.0106 68 1.3187 0.0105 69 1.3291 0.0104 70 1.3394 0.0103 71 1.3497 0.0103 72 1.3599 0.0102 73 1.3679 0.0080 74 1.3759 0.0080 75 1.3838 0.0079 76 1.3917 0.0079 77 1.3995 0.0078 78 1.4072 0.0077 79 1.4149 0.0077 80 1.4226 0.0076 81 1.4301 0.0076 82 1.4377 0.0075 83 1.4451 0.0075 84 1.4525 0.0074 85 1.4599 0.0074 86 1.4672 0.0073 87 1.4745 0.0073 88 1.4817 0.0072 89 1.4889 0.0072 90 1.4960 0.0071 91 1.5031 0.0071 92 1.5102 0.0070 93 1.5172 0.0070 94 1.5241 0.0070 95 1.5310 0.0069 96 1.5379 0.0069 97 1.5447 0.0068 98 1.5515 0.0068 99 1.5583 0.0067 100 1.5650 0.0067 101 1.5716 0.0067 102 1.5783 0.0066 103 1.5849 0.0066 104 1.5914 0.0066 105 1.5980 0.0065 106 1.6044 0.0065 107 1.6109 0.0065 108 1.6173 0.0064 109 1.6237 0.0064 110 1.6301 0.0064 111 1.6364 0.0063 112 1.6427 0.0063 113 1.6489 0.0063 114 1.6551 0.0062 115 1.6613 0.0062 116 1.6675 0.0062 117 1.6736 0.0061 118 1.6797 0.0061 119 1.6858 0.0061 120 1.6918 0.0060 121 1.6979 0.0060 122 1.7038 0.0060 123 1.7098 0.0060 124 1.7157 0.0059 125 1.7216 0.0059 126 1.7275 0.0059 127 1.7334 0.0058 128 1.7392 0.0058 129 1.7450 0.0058 130 1.7507 0.0058 131 1.7565 0.0057 132 1.7622 0.0057 133 1.7679 0.0057 134 1.7736 0.0057 135 1.7792 0.0056 136 1.7848 0.0056 137 1.7904 0.0056 138 1.7960 0.0056 139 1.8016 0.0056 140 1.8071 0.0055 141 1.8126 0.0055 142 1.8181 0.0055 143 1.8236 0.0055 144 1.8290 0.0054 145 1.8344 0.0054 146 1.8398 0.0054 147 1.8452 0.0054 148 1.8506 0.0054 149 1.8559 0.0053 150 1.8612 0.0053 151 1.8665 0.0053 152 1.8718 0.0053 153 1.8770 0.0053 154 1.8823 0.0052 155 1.8875 0.0052 156 1.8927 0.0052 157 1.8979 0.0052 158 1.9030 0.0052 159 1.9082 0.0051 160 1.9133 0.0051 161 1.9184 0.0051 162 1.9235 0.0051 163 1.9285 0.0051 164 1.9336 0.0050 165 1.9386 0.0050 166 1.9436 0.0050 167 1.9486 0.0050 168 1.9536 0.0050 169 1.9586 0.0050 170 1.9635 0.0049 171 1.9684 0.0049 172 1.9734 0.0049 173 1.9783 0.0049 174 1.9831 0.0049 175 1.9880 0.0049 176 1.9929 0.0048 177 1.9977 0.0048 178 2.0025 0.0048 179 2.0073 0.0048 180 2.0121 0.0048 181 2.0169 0.0048 182 2.0216 0.0048 183 2.0264 0.0047 184 2.0311 0.0047 185 2.0358 0.0047 186 2.0405 0.0047 187 2.0452 0.0047 188 2.0499 0.0047 189 2.0545 0.0047 190 2.0592 0.0046 191 2.0638 0.0046 192 2.0684 0.0046 193 2.0730 0.0046 194 2.0776 0.0046 195 2.0821 0.0046 196 2.0867 0.0046 197 2.0913 0.0045 198 2.0958 0.0045 199 2.1003 0.0045 200 2.1048 0.0045 201 2.1093 0.0045 202 2.1138 0.0045 203 2.1182 0.0045 204 2.1227 0.0045 205 2.1271 0.0044 206 2.1316 0.0044 207 2.1360 0.0044 208 2.1404 0.0044 209 2.1448 0.0044 210 2.1492 0.0044 211 2.1535 0.0044 212 2.1579 0.0044 213 2.1623 0.0043 214 2.1666 0.0043 215 2.1709 0.0043 216 2.1752 0.0043 217 2.1795 0.0043 218 2.1838 0.0043 219 2.1881 0.0043 220 2.1924 0.0043 221 2.1966 0.0043 222 2.2009 0.0042 223 2.2051 0.0042 224 2.2093 0.0042 225 2.2135 0.0042 226 2.2177 0.0042 227 2.2219 0.0042 228 2.2261 0.0042 229 2.2303 0.0042 230 2.2344 0.0042 231 2.2386 0.0041 232 2.2427 0.0041 233 2.2468 0.0041 234 2.2510 0.0041 235 2.2551 0.0041 236 2.2592 0.0041 237 2.2632 0.0041 238 2.2673 0.0041 239 2.2714 0.0041 240 2.2754 0.0041 241 2.2795 0.0040 242 2.2835 0.0040 243 2.2876 0.0040 244 2.2916 0.0040 245 2.2956 0.0040 246 2.2996 0.0040 247 2.3036 0.0040 248 2.3076 0.0040 249 2.3115 0.0040 250 2.3155 0.0040 251 2.3195 0.0040 252 2.3234 0.0039 253 2.3274 0.0039 254 2.3313 0.0039 255 2.3352 0.0039 256 2.3391 0.0039 257 2.3430 0.0039 258 2.3469 0.0039 259 2.3508 0.0039 260 2.3547 0.0039 261 2.3585 0.0039 262 2.3624 0.0039 263 2.3662 0.0039 264 2.3701 0.0038 265 2.3739 0.0038 266 2.3778 0.0038 267 2.3816 0.0038 268 2.3854 0.0038 269 2.3892 0.0038 270 2.3930 0.0038 271 2.3968 0.0038 272 2.4005 0.0038 273 2.4043 0.0038 274 2.4081 0.0038 275 2.4118 0.0038 276 2.4156 0.0037 277 2.4193 0.0037 278 2.4230 0.0037 279 2.4268 0.0037 280 2.4305 0.0037 281 2.4342 0.0037 282 2.4379 0.0037 283 2.4416 0.0037 284 2.4453 0.0037 285 2.4489 0.0037 286 2.4526 0.0037 287 2.4563 0.0037 288 2.4599 0.0037 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0037 0.0007 0.0029 2 0.0037 0.0007 0.0029 3 0.0037 0.0007 0.0029 4 0.0037 0.0007 0.0029 5 0.0037 0.0007 0.0030 6 0.0037 0.0007 0.0030 7 0.0037 0.0008 0.0030 8 0.0037 0.0008 0.0030 9 0.0037 0.0008 0.0030 10 0.0038 0.0008 0.0030 11 0.0038 0.0008 0.0030 12 0.0038 0.0008 0.0030 13 0.0038 0.0008 0.0030 14 0.0038 0.0008 0.0030 15 0.0038 0.0008 0.0030 16 0.0038 0.0008 0.0031 17 0.0038 0.0008 0.0031 18 0.0039 0.0008 0.0031 19 0.0039 0.0008 0.0031 20 0.0039 0.0008 0.0031 21 0.0039 0.0008 0.0031 22 0.0039 0.0008 0.0031 23 0.0039 0.0008 0.0031 24 0.0039 0.0008 0.0031 25 0.0039 0.0008 0.0031 26 0.0040 0.0008 0.0032 27 0.0040 0.0008 0.0032 28 0.0040 0.0008 0.0032 29 0.0040 0.0008 0.0032 30 0.0040 0.0008 0.0032 31 0.0040 0.0008 0.0032 32 0.0040 0.0008 0.0032 33 0.0041 0.0008 0.0032 34 0.0041 0.0008 0.0032 35 0.0041 0.0008 0.0033 36 0.0041 0.0008 0.0033 37 0.0041 0.0008 0.0033 38 0.0041 0.0008 0.0033 39 0.0041 0.0008 0.0033 40 0.0042 0.0008 0.0033 41 0.0042 0.0008 0.0033 42 0.0042 0.0008 0.0033 43 0.0042 0.0009 0.0034 44 0.0042 0.0009 0.0034 45 0.0042 0.0009 0.0034 46 0.0043 0.0009 0.0034 47 0.0043 0.0009 0.0034 48 0.0043 0.0009 0.0034 49 0.0043 0.0009 0.0034 50 0.0043 0.0009 0.0035 51 0.0043 0.0009 0.0035 52 0.0044 0.0009 0.0035 53 0.0044 0.0009 0.0035 54 0.0044 0.0009 0.0035 55 0.0044 0.0009 0.0035 56 0.0044 0.0009 0.0035 57 0.0045 0.0009 0.0036 58 0.0045 0.0009 0.0036 59 0.0045 0.0009 0.0036 60 0.0045 0.0009 0.0036 61 0.0045 0.0009 0.0036 62 0.0045 0.0009 0.0036 63 0.0046 0.0009 0.0036 64 0.0046 0.0009 0.0037 65 0.0046 0.0009 0.0037 66 0.0046 0.0009 0.0037 67 0.0047 0.0009 0.0037 68 0.0047 0.0009 0.0037 69 0.0047 0.0009 0.0037 70 0.0047 0.0010 0.0038 71 0.0047 0.0010 0.0038 72 0.0048 0.0010 0.0038 73 0.0048 0.0010 0.0038 74 0.0048 0.0010 0.0038 75 0.0048 0.0010 0.0039 76 0.0048 0.0010 0.0039 77 0.0049 0.0010 0.0039 78 0.0049 0.0010 0.0039 79 0.0049 0.0010 0.0039 80 0.0049 0.0010 0.0039 81 0.0050 0.0010 0.0040 82 0.0050 0.0010 0.0040 83 0.0050 0.0010 0.0040 84 0.0050 0.0010 0.0040 85 0.0051 0.0010 0.0041 86 0.0051 0.0010 0.0041 87 0.0051 0.0010 0.0041 88 0.0052 0.0010 0.0041 89 0.0052 0.0010 0.0041 90 0.0052 0.0011 0.0042 91 0.0053 0.0011 0.0042 92 0.0053 0.0011 0.0042 93 0.0053 0.0011 0.0042 94 0.0053 0.0011 0.0043 95 0.0054 0.0011 0.0043 96 0.0054 0.0011 0.0043 97 0.0054 0.0011 0.0043 98 0.0055 0.0011 0.0044 99 0.0055 0.0011 0.0044 100 0.0055 0.0011 0.0044 101 0.0056 0.0011 0.0045 102 0.0056 0.0011 0.0045 103 0.0056 0.0011 0.0045 104 0.0057 0.0011 0.0045 105 0.0057 0.0012 0.0046 106 0.0057 0.0012 0.0046 107 0.0058 0.0012 0.0046 108 0.0058 0.0012 0.0046 109 0.0059 0.0012 0.0047 110 0.0059 0.0012 0.0047 111 0.0060 0.0012 0.0048 112 0.0060 0.0012 0.0048 113 0.0060 0.0012 0.0048 114 0.0061 0.0012 0.0048 115 0.0061 0.0012 0.0049 116 0.0062 0.0012 0.0049 117 0.0062 0.0013 0.0050 118 0.0063 0.0013 0.0050 119 0.0063 0.0013 0.0050 120 0.0064 0.0013 0.0051 121 0.0064 0.0013 0.0051 122 0.0065 0.0013 0.0052 123 0.0065 0.0013 0.0052 124 0.0066 0.0013 0.0052 125 0.0066 0.0013 0.0053 126 0.0067 0.0013 0.0053 127 0.0067 0.0014 0.0054 128 0.0068 0.0014 0.0054 129 0.0069 0.0014 0.0055 130 0.0069 0.0014 0.0055 131 0.0070 0.0014 0.0056 132 0.0070 0.0014 0.0056 133 0.0071 0.0014 0.0057 134 0.0072 0.0014 0.0057 135 0.0073 0.0015 0.0058 136 0.0073 0.0015 0.0058 137 0.0074 0.0015 0.0059 138 0.0075 0.0015 0.0060 139 0.0076 0.0015 0.0060 140 0.0076 0.0015 0.0061 141 0.0077 0.0016 0.0062 142 0.0078 0.0016 0.0062 143 0.0079 0.0016 0.0063 144 0.0080 0.0016 0.0064 145 0.0102 0.0021 0.0081 146 0.0103 0.0021 0.0082 147 0.0104 0.0021 0.0083 148 0.0105 0.0021 0.0084 149 0.0106 0.0021 0.0085 150 0.0107 0.0022 0.0085 151 0.0109 0.0022 0.0087 152 0.0109 0.0022 0.0087 153 0.0111 0.0022 0.0089 154 0.0112 0.0023 0.0089 155 0.0114 0.0023 0.0091 156 0.0115 0.0023 0.0092 157 0.0117 0.0024 0.0093 158 0.0118 0.0024 0.0094 159 0.0120 0.0024 0.0096 160 0.0121 0.0024 0.0097 161 0.0123 0.0025 0.0098 162 0.0125 0.0025 0.0099 163 0.0127 0.0026 0.0101 164 0.0128 0.0026 0.0102 165 0.0131 0.0026 0.0105 166 0.0133 0.0027 0.0106 167 0.0136 0.0027 0.0108 168 0.0137 0.0028 0.0110 169 0.0141 0.0029 0.0113 170 0.0143 0.0029 0.0114 171 0.0147 0.0030 0.0117 172 0.0149 0.0030 0.0119 173 0.0154 0.0031 0.0123 174 0.0156 0.0032 0.0125 175 0.0162 0.0033 0.0129 176 0.0164 0.0033 0.0131 177 0.0171 0.0034 0.0136 178 0.0174 0.0035 0.0139 179 0.0182 0.0037 0.0145 180 0.0186 0.0038 0.0149 181 0.0196 0.0039 0.0156 182 0.0201 0.0041 0.0160 183 0.0213 0.0043 0.0170 184 0.0220 0.0045 0.0176 185 0.0177 0.0036 0.0141 186 0.0187 0.0038 0.0149 187 0.0212 0.0043 0.0169 188 0.0229 0.0046 0.0183 189 0.0276 0.0056 0.0220 190 0.0311 0.0063 0.0248 191 0.0445 0.0090 0.0355 192 0.0612 0.0100 0.0512 193 0.1915 0.0100 0.1815 194 0.0362 0.0073 0.0289 195 0.0249 0.0050 0.0199 196 0.0199 0.0040 0.0158 197 0.0228 0.0046 0.0182 198 0.0207 0.0042 0.0165 199 0.0191 0.0038 0.0152 200 0.0178 0.0036 0.0142 201 0.0168 0.0034 0.0134 202 0.0159 0.0032 0.0127 203 0.0151 0.0031 0.0121 204 0.0145 0.0029 0.0116 205 0.0139 0.0028 0.0111 206 0.0134 0.0027 0.0107 207 0.0130 0.0026 0.0104 208 0.0126 0.0025 0.0100 209 0.0122 0.0025 0.0097 210 0.0119 0.0024 0.0095 211 0.0116 0.0023 0.0092 212 0.0113 0.0023 0.0090 213 0.0110 0.0022 0.0088 214 0.0108 0.0022 0.0086 215 0.0106 0.0021 0.0084 216 0.0103 0.0021 0.0083 217 0.0080 0.0016 0.0064 218 0.0079 0.0016 0.0063 219 0.0077 0.0016 0.0061 220 0.0075 0.0015 0.0060 221 0.0074 0.0015 0.0059 222 0.0072 0.0015 0.0058 223 0.0071 0.0014 0.0057 224 0.0070 0.0014 0.0055 225 0.0068 0.0014 0.0055 226 0.0067 0.0014 0.0054 227 0.0066 0.0013 0.0053 228 0.0065 0.0013 0.0052 229 0.0064 0.0013 0.0051 230 0.0063 0.0013 0.0050 231 0.0062 0.0013 0.0049 232 0.0061 0.0012 0.0049 233 0.0060 0.0012 0.0048 234 0.0059 0.0012 0.0047 235 0.0058 0.0012 0.0047 236 0.0058 0.0012 0.0046 237 0.0057 0.0012 0.0045 238 0.0056 0.0011 0.0045 239 0.0056 0.0011 0.0044 240 0.0055 0.0011 0.0044 241 0.0054 0.0011 0.0043 242 0.0054 0.0011 0.0043 243 0.0053 0.0011 0.0042 244 0.0052 0.0011 0.0042 245 0.0052 0.0010 0.0041 246 0.0051 0.0010 0.0041 247 0.0051 0.0010 0.0040 248 0.0050 0.0010 0.0040 249 0.0050 0.0010 0.0040 250 0.0049 0.0010 0.0039 251 0.0049 0.0010 0.0039 252 0.0048 0.0010 0.0038 253 0.0048 0.0010 0.0038 254 0.0047 0.0010 0.0038 255 0.0047 0.0009 0.0037 256 0.0046 0.0009 0.0037 257 0.0046 0.0009 0.0037 258 0.0046 0.0009 0.0036 259 0.0045 0.0009 0.0036 260 0.0045 0.0009 0.0036 261 0.0044 0.0009 0.0035 262 0.0044 0.0009 0.0035 263 0.0044 0.0009 0.0035 264 0.0043 0.0009 0.0035 265 0.0043 0.0009 0.0034 266 0.0043 0.0009 0.0034 267 0.0042 0.0009 0.0034 268 0.0042 0.0008 0.0034 269 0.0042 0.0008 0.0033 270 0.0041 0.0008 0.0033 271 0.0041 0.0008 0.0033 272 0.0041 0.0008 0.0033 273 0.0040 0.0008 0.0032 274 0.0040 0.0008 0.0032 275 0.0040 0.0008 0.0032 276 0.0040 0.0008 0.0032 277 0.0039 0.0008 0.0031 278 0.0039 0.0008 0.0031 279 0.0039 0.0008 0.0031 280 0.0039 0.0008 0.0031 281 0.0038 0.0008 0.0031 282 0.0038 0.0008 0.0030 283 0.0038 0.0008 0.0030 284 0.0038 0.0008 0.0030 285 0.0037 0.0008 0.0030 286 0.0037 0.0008 0.0030 287 0.0037 0.0007 0.0029 288 0.0037 0.0007 0.0029 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.47(In) Total effective rainfall = 1.99(In) Peak flow rate in flood hydrograph = 31.93(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 10.0 20.0 30.0 40.0 ----------------------------------------------------------------------- 0+ 5 0.0006 0.08 Q | | | | 0+10 0.0039 0.48 Q | | | | 0+15 0.0093 0.78 Q | | | | 0+20 0.0151 0.85 Q | | | | 0+25 0.0211 0.87 Q | | | | 0+30 0.0271 0.87 Q | | | | 0+35 0.0331 0.87 Q | | | | 0+40 0.0392 0.88 Q | | | | 0+45 0.0452 0.88 Q | | | | 0+50 0.0513 0.88 Q | | | | 0+55 0.0574 0.89 Q | | | | 1+ 0 0.0635 0.89 Q | | | | 1+ 5 0.0697 0.89 Q | | | | 1+10 0.0758 0.89 Q | | | | 1+15 0.0820 0.90 Q | | | | 1+20 0.0882 0.90 Q | | | | 1+25 0.0944 0.90 Q | | | | 1+30 0.1007 0.91 Q | | | | 1+35 0.1069 0.91 QV | | | | 1+40 0.1132 0.91 QV | | | | 1+45 0.1195 0.91 QV | | | | 1+50 0.1258 0.92 QV | | | | 1+55 0.1322 0.92 QV | | | | 2+ 0 0.1385 0.92 QV | | | | 2+ 5 0.1449 0.93 QV | | | | 2+10 0.1513 0.93 QV | | | | 2+15 0.1577 0.93 QV | | | | 2+20 0.1642 0.94 QV | | | | 2+25 0.1707 0.94 QV | | | | 2+30 0.1772 0.94 QV | | | | 2+35 0.1837 0.95 QV | | | | 2+40 0.1902 0.95 QV | | | | 2+45 0.1968 0.95 QV | | | | 2+50 0.2034 0.96 Q V | | | | 2+55 0.2100 0.96 Q V | | | | 3+ 0 0.2166 0.96 Q V | | | | 3+ 5 0.2233 0.97 Q V | | | | 3+10 0.2300 0.97 Q V | | | | 3+15 0.2367 0.97 Q V | | | | 3+20 0.2434 0.98 Q V | | | | 3+25 0.2501 0.98 Q V | | | | 3+30 0.2569 0.98 Q V | | | | 3+35 0.2637 0.99 Q V | | | | 3+40 0.2706 0.99 Q V | | | | 3+45 0.2774 1.00 Q V | | | | 3+50 0.2843 1.00 |QV | | | | 3+55 0.2912 1.00 |QV | | | | 4+ 0 0.2982 1.01 |QV | | | | 4+ 5 0.3051 1.01 |Q V | | | | 4+10 0.3121 1.02 |Q V | | | | 4+15 0.3192 1.02 |Q V | | | | 4+20 0.3262 1.02 |Q V | | | | 4+25 0.3333 1.03 |Q V | | | | 4+30 0.3404 1.03 |Q V | | | | 4+35 0.3475 1.04 |Q V | | | | 4+40 0.3547 1.04 |Q V | | | | 4+45 0.3619 1.04 |Q V | | | | 4+50 0.3691 1.05 |Q V | | | | 4+55 0.3764 1.05 |Q V | | | | 5+ 0 0.3837 1.06 |Q V | | | | 5+ 5 0.3910 1.06 |Q V | | | | 5+10 0.3983 1.07 |Q V | | | | 5+15 0.4057 1.07 |Q V | | | | 5+20 0.4131 1.08 |Q V | | | | 5+25 0.4206 1.08 |Q V | | | | 5+30 0.4281 1.09 |Q V | | | | 5+35 0.4356 1.09 |Q V | | | | 5+40 0.4431 1.10 |Q V | | | | 5+45 0.4507 1.10 |Q V | | | | 5+50 0.4583 1.11 |Q V | | | | 5+55 0.4660 1.11 |Q V | | | | 6+ 0 0.4737 1.12 |Q V | | | | 6+ 5 0.4814 1.12 |Q V | | | | 6+10 0.4892 1.13 |Q V | | | | 6+15 0.4970 1.13 |Q V | | | | 6+20 0.5048 1.14 |Q V | | | | 6+25 0.5127 1.14 |Q V | | | | 6+30 0.5206 1.15 |Q V | | | | 6+35 0.5286 1.15 |Q V | | | | 6+40 0.5366 1.16 |Q V | | | | 6+45 0.5446 1.17 |Q V | | | | 6+50 0.5527 1.17 |Q V | | | | 6+55 0.5608 1.18 |Q V | | | | 7+ 0 0.5689 1.18 |Q V | | | | 7+ 5 0.5771 1.19 |Q V | | | | 7+10 0.5854 1.20 |Q V | | | | 7+15 0.5937 1.20 |Q V | | | | 7+20 0.6020 1.21 |Q V | | | | 7+25 0.6104 1.22 |Q V | | | | 7+30 0.6188 1.22 |Q V | | | | 7+35 0.6273 1.23 |Q V | | | | 7+40 0.6358 1.24 |Q V | | | | 7+45 0.6444 1.24 |Q V | | | | 7+50 0.6530 1.25 |Q V | | | | 7+55 0.6616 1.26 |Q V | | | | 8+ 0 0.6704 1.27 |Q V | | | | 8+ 5 0.6791 1.27 |Q V | | | | 8+10 0.6879 1.28 |Q V | | | | 8+15 0.6968 1.29 |Q V | | | | 8+20 0.7057 1.30 |Q V | | | | 8+25 0.7147 1.30 |Q V | | | | 8+30 0.7238 1.31 |Q V | | | | 8+35 0.7328 1.32 |Q V | | | | 8+40 0.7420 1.33 |Q V | | | | 8+45 0.7512 1.34 |Q V | | | | 8+50 0.7605 1.35 |Q V | | | | 8+55 0.7698 1.35 |Q V | | | | 9+ 0 0.7792 1.36 |Q V | | | | 9+ 5 0.7886 1.37 |Q V | | | | 9+10 0.7982 1.38 |Q V | | | | 9+15 0.8077 1.39 |Q V | | | | 9+20 0.8174 1.40 |Q V | | | | 9+25 0.8271 1.41 |Q V | | | | 9+30 0.8369 1.42 |Q V | | | | 9+35 0.8467 1.43 |Q V | | | | 9+40 0.8567 1.44 |Q V | | | | 9+45 0.8667 1.45 |Q V | | | | 9+50 0.8767 1.46 |Q V | | | | 9+55 0.8869 1.47 |Q V | | | | 10+ 0 0.8971 1.49 |Q V | | | | 10+ 5 0.9074 1.50 |Q V | | | | 10+10 0.9178 1.51 |Q V| | | | 10+15 0.9283 1.52 |Q V| | | | 10+20 0.9389 1.53 |Q V| | | | 10+25 0.9495 1.55 |Q V| | | | 10+30 0.9602 1.56 |Q V| | | | 10+35 0.9711 1.57 |Q V| | | | 10+40 0.9820 1.59 |Q V| | | | 10+45 0.9930 1.60 |Q V| | | | 10+50 1.0041 1.61 |Q V| | | | 10+55 1.0153 1.63 |Q V| | | | 11+ 0 1.0266 1.64 |Q V | | | 11+ 5 1.0381 1.66 |Q V | | | 11+10 1.0496 1.67 |Q V | | | 11+15 1.0612 1.69 |Q V | | | 11+20 1.0730 1.71 |Q V | | | 11+25 1.0848 1.72 |Q V | | | 11+30 1.0968 1.74 |Q V | | | 11+35 1.1090 1.76 |Q V | | | 11+40 1.1212 1.78 |Q |V | | | 11+45 1.1336 1.80 |Q |V | | | 11+50 1.1461 1.82 |Q |V | | | 11+55 1.1587 1.84 |Q |V | | | 12+ 0 1.1715 1.86 |Q |V | | | 12+ 5 1.1848 1.92 |Q |V | | | 12+10 1.1998 2.18 | Q |V | | | 12+15 1.2161 2.37 | Q |V | | | 12+20 1.2329 2.44 | Q | V | | | 12+25 1.2499 2.47 | Q | V | | | 12+30 1.2671 2.49 | Q | V | | | 12+35 1.2844 2.52 | Q | V | | | 12+40 1.3020 2.55 | Q | V | | | 12+45 1.3197 2.58 | Q | V | | | 12+50 1.3377 2.61 | Q | V | | | 12+55 1.3558 2.64 | Q | V | | | 13+ 0 1.3742 2.67 | Q | V | | | 13+ 5 1.3928 2.70 | Q | V | | | 13+10 1.4116 2.74 | Q | V | | | 13+15 1.4307 2.77 | Q | V | | | 13+20 1.4500 2.81 | Q | V | | | 13+25 1.4696 2.85 | Q | V | | | 13+30 1.4895 2.89 | Q | V | | | 13+35 1.5097 2.93 | Q | V | | | 13+40 1.5302 2.97 | Q | V | | | 13+45 1.5509 3.02 | Q | V | | | 13+50 1.5721 3.07 | Q | V | | | 13+55 1.5936 3.12 | Q | V | | | 14+ 0 1.6154 3.17 | Q | V | | | 14+ 5 1.6377 3.23 | Q | V | | | 14+10 1.6604 3.30 | Q | V | | | 14+15 1.6835 3.36 | Q | V | | | 14+20 1.7071 3.43 | Q | V | | | 14+25 1.7312 3.50 | Q | V | | | 14+30 1.7559 3.58 | Q | V | | | 14+35 1.7812 3.66 | Q | V | | | 14+40 1.8071 3.76 | Q | V | | | 14+45 1.8336 3.85 | Q | V | | | 14+50 1.8609 3.97 | Q | V | | | 14+55 1.8890 4.08 | Q | V | | | 15+ 0 1.9180 4.21 | Q | V | | | 15+ 5 1.9480 4.35 | Q | V| | | 15+10 1.9791 4.52 | Q | V| | | 15+15 2.0115 4.69 | Q | V| | | 15+20 2.0453 4.91 | Q | V | | 15+25 2.0797 5.01 | Q | V | | 15+30 2.1117 4.64 | Q | V | | 15+35 2.1424 4.46 | Q | |V | | 15+40 2.1753 4.78 | Q | |V | | 15+45 2.2116 5.27 | Q | |V | | 15+50 2.2533 6.05 | Q | | V | | 15+55 2.3026 7.16 | Q | | V | | 16+ 0 2.3676 9.44 | Q| | V | | 16+ 5 2.4802 16.35 | | Q | V | | 16+10 2.7001 31.93 | | | V |Q | 16+15 2.8693 24.58 | | | Q V | | 16+20 2.9420 10.55 | Q | V | | 16+25 2.9859 6.37 | Q | | V| | 16+30 3.0217 5.20 | Q | | V| | 16+35 3.0563 5.03 | Q | | V | 16+40 3.0885 4.68 | Q | | V | 16+45 3.1186 4.36 | Q | | V | 16+50 3.1467 4.08 | Q | | V | 16+55 3.1732 3.86 | Q | | |V | 17+ 0 3.1985 3.66 | Q | | |V | 17+ 5 3.2226 3.50 | Q | | |V | 17+10 3.2457 3.36 | Q | | |V | 17+15 3.2679 3.23 | Q | | | V | 17+20 3.2894 3.12 | Q | | | V | 17+25 3.3101 3.02 | Q | | | V | 17+30 3.3303 2.93 | Q | | | V | 17+35 3.3499 2.84 | Q | | | V | 17+40 3.3689 2.77 | Q | | | V | 17+45 3.3875 2.70 | Q | | | V | 17+50 3.4057 2.63 | Q | | | V | 17+55 3.4234 2.57 | Q | | | V | 18+ 0 3.4408 2.52 | Q | | | V | 18+ 5 3.4574 2.42 | Q | | | V | 18+10 3.4722 2.14 | Q | | | V | 18+15 3.4854 1.92 |Q | | | V | 18+20 3.4981 1.84 |Q | | | V | 18+25 3.5105 1.80 |Q | | | V | 18+30 3.5226 1.76 |Q | | | V | 18+35 3.5345 1.72 |Q | | | V | 18+40 3.5461 1.69 |Q | | | V | 18+45 3.5575 1.66 |Q | | | V | 18+50 3.5687 1.63 |Q | | | V | 18+55 3.5797 1.60 |Q | | | V | 19+ 0 3.5905 1.57 |Q | | | V | 19+ 5 3.6012 1.54 |Q | | | V | 19+10 3.6116 1.52 |Q | | | V | 19+15 3.6219 1.50 |Q | | | V | 19+20 3.6321 1.47 |Q | | | V | 19+25 3.6421 1.45 |Q | | | V | 19+30 3.6519 1.43 |Q | | | V | 19+35 3.6616 1.41 |Q | | | V | 19+40 3.6712 1.39 |Q | | | V | 19+45 3.6807 1.37 |Q | | | V | 19+50 3.6900 1.35 |Q | | | V | 19+55 3.6992 1.34 |Q | | | V | 20+ 0 3.7083 1.32 |Q | | | V | 20+ 5 3.7172 1.30 |Q | | | V | 20+10 3.7261 1.29 |Q | | | V | 20+15 3.7349 1.27 |Q | | | V | 20+20 3.7435 1.26 |Q | | | V | 20+25 3.7521 1.24 |Q | | | V | 20+30 3.7606 1.23 |Q | | | V | 20+35 3.7689 1.22 |Q | | | V | 20+40 3.7772 1.20 |Q | | | V | 20+45 3.7854 1.19 |Q | | | V | 20+50 3.7935 1.18 |Q | | | V | 20+55 3.8016 1.17 |Q | | | V | 21+ 0 3.8095 1.15 |Q | | | V | 21+ 5 3.8174 1.14 |Q | | | V | 21+10 3.8252 1.13 |Q | | | V | 21+15 3.8329 1.12 |Q | | | V | 21+20 3.8406 1.11 |Q | | | V | 21+25 3.8481 1.10 |Q | | | V | 21+30 3.8556 1.09 |Q | | | V | 21+35 3.8631 1.08 |Q | | | V | 21+40 3.8705 1.07 |Q | | | V | 21+45 3.8778 1.06 |Q | | | V | 21+50 3.8850 1.05 |Q | | | V | 21+55 3.8922 1.04 |Q | | | V | 22+ 0 3.8994 1.04 |Q | | | V | 22+ 5 3.9065 1.03 |Q | | | V | 22+10 3.9135 1.02 |Q | | | V | 22+15 3.9204 1.01 |Q | | | V | 22+20 3.9273 1.00 |Q | | | V | 22+25 3.9342 1.00 Q | | | V | 22+30 3.9410 0.99 Q | | | V | 22+35 3.9478 0.98 Q | | | V | 22+40 3.9545 0.97 Q | | | V | 22+45 3.9611 0.97 Q | | | V | 22+50 3.9677 0.96 Q | | | V| 22+55 3.9743 0.95 Q | | | V| 23+ 0 3.9808 0.95 Q | | | V| 23+ 5 3.9873 0.94 Q | | | V| 23+10 3.9937 0.93 Q | | | V| 23+15 4.0001 0.93 Q | | | V| 23+20 4.0064 0.92 Q | | | V| 23+25 4.0127 0.91 Q | | | V| 23+30 4.0190 0.91 Q | | | V| 23+35 4.0252 0.90 Q | | | V| 23+40 4.0314 0.90 Q | | | V| 23+45 4.0375 0.89 Q | | | V| 23+50 4.0436 0.89 Q | | | V| 23+55 4.0497 0.88 Q | | | V| 24+ 0 4.0557 0.87 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 2 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 2 Antecedent Moisture Condition = 1 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 2 12.94 1 0.52 -------------------------------------------------------------------- Rainfall data for year 2 12.94 6 1.36 -------------------------------------------------------------------- Rainfall data for year 2 12.94 24 2.46 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 1) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 16.6 12.94 1.000 1.000 0.090 0.090 Area-averaged adjusted loss rate Fm (In/Hr) = 0.090 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC1) Yield Fr 1.16 0.090 32.0 16.6 12.30 0.000 11.78 0.910 98.0 98.0 0.20 0.907 Area-averaged catchment yield fraction, Y = 0.825 Area-averaged low loss fraction, Yb = 0.175 User entry of time of concentration = 0.138 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 12.94(Ac.) Catchment Lag time = 0.111 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 75.3830 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.090(In/Hr) Average low loss rate fraction (Yb) = 0.175 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.192(In) Computed peak 30-minute rainfall = 0.393(In) Specified peak 1-hour rainfall = 0.518(In) Computed peak 3-hour rainfall = 0.936(In) Specified peak 6-hour rainfall = 1.360(In) Specified peak 24-hour rainfall = 2.460(In) Rainfall depth area reduction factors: Using a total area of 12.94(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.192(In) 30-minute factor = 0.999 Adjusted rainfall = 0.392(In) 1-hour factor = 0.999 Adjusted rainfall = 0.518(In) 3-hour factor = 1.000 Adjusted rainfall = 0.936(In) 6-hour factor = 1.000 Adjusted rainfall = 1.360(In) 24-hour factor = 1.000 Adjusted rainfall = 2.460(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 156.49 (CFS)) 1 10.105 15.813 2 59.170 76.784 3 92.172 51.646 4 98.501 9.904 5 100.000 2.347 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.1916 0.1916 2 0.2528 0.0612 3 0.2973 0.0445 4 0.3336 0.0363 5 0.3647 0.0311 6 0.3923 0.0276 7 0.4173 0.0250 8 0.4402 0.0229 9 0.4614 0.0212 10 0.4813 0.0199 11 0.5000 0.0187 12 0.5177 0.0177 13 0.5405 0.0228 14 0.5626 0.0220 15 0.5839 0.0213 16 0.6046 0.0207 17 0.6246 0.0201 18 0.6442 0.0196 19 0.6632 0.0191 20 0.6818 0.0186 21 0.7000 0.0182 22 0.7178 0.0178 23 0.7352 0.0174 24 0.7523 0.0171 25 0.7690 0.0167 26 0.7855 0.0164 27 0.8016 0.0161 28 0.8175 0.0159 29 0.8331 0.0156 30 0.8485 0.0154 31 0.8636 0.0151 32 0.8785 0.0149 33 0.8932 0.0147 34 0.9077 0.0145 35 0.9220 0.0143 36 0.9361 0.0141 37 0.9500 0.0139 38 0.9638 0.0137 39 0.9774 0.0136 40 0.9908 0.0134 41 1.0041 0.0133 42 1.0172 0.0131 43 1.0302 0.0130 44 1.0430 0.0128 45 1.0557 0.0127 46 1.0683 0.0126 47 1.0807 0.0125 48 1.0931 0.0123 49 1.1053 0.0122 50 1.1174 0.0121 51 1.1294 0.0120 52 1.1412 0.0119 53 1.1530 0.0118 54 1.1647 0.0117 55 1.1763 0.0116 56 1.1877 0.0115 57 1.1991 0.0114 58 1.2104 0.0113 59 1.2216 0.0112 60 1.2327 0.0111 61 1.2437 0.0110 62 1.2547 0.0109 63 1.2655 0.0109 64 1.2763 0.0108 65 1.2870 0.0107 66 1.2977 0.0106 67 1.3082 0.0106 68 1.3187 0.0105 69 1.3291 0.0104 70 1.3395 0.0103 71 1.3497 0.0103 72 1.3599 0.0102 73 1.3680 0.0080 74 1.3760 0.0080 75 1.3839 0.0079 76 1.3917 0.0079 77 1.3995 0.0078 78 1.4073 0.0077 79 1.4150 0.0077 80 1.4226 0.0076 81 1.4302 0.0076 82 1.4377 0.0075 83 1.4452 0.0075 84 1.4526 0.0074 85 1.4600 0.0074 86 1.4673 0.0073 87 1.4746 0.0073 88 1.4818 0.0072 89 1.4889 0.0072 90 1.4961 0.0071 91 1.5032 0.0071 92 1.5102 0.0070 93 1.5172 0.0070 94 1.5242 0.0070 95 1.5311 0.0069 96 1.5379 0.0069 97 1.5448 0.0068 98 1.5516 0.0068 99 1.5583 0.0067 100 1.5650 0.0067 101 1.5717 0.0067 102 1.5783 0.0066 103 1.5849 0.0066 104 1.5915 0.0066 105 1.5980 0.0065 106 1.6045 0.0065 107 1.6109 0.0065 108 1.6174 0.0064 109 1.6238 0.0064 110 1.6301 0.0064 111 1.6364 0.0063 112 1.6427 0.0063 113 1.6490 0.0063 114 1.6552 0.0062 115 1.6614 0.0062 116 1.6675 0.0062 117 1.6737 0.0061 118 1.6798 0.0061 119 1.6858 0.0061 120 1.6919 0.0060 121 1.6979 0.0060 122 1.7039 0.0060 123 1.7098 0.0060 124 1.7158 0.0059 125 1.7217 0.0059 126 1.7276 0.0059 127 1.7334 0.0058 128 1.7392 0.0058 129 1.7450 0.0058 130 1.7508 0.0058 131 1.7565 0.0057 132 1.7623 0.0057 133 1.7679 0.0057 134 1.7736 0.0057 135 1.7793 0.0056 136 1.7849 0.0056 137 1.7905 0.0056 138 1.7961 0.0056 139 1.8016 0.0056 140 1.8071 0.0055 141 1.8127 0.0055 142 1.8181 0.0055 143 1.8236 0.0055 144 1.8290 0.0054 145 1.8345 0.0054 146 1.8399 0.0054 147 1.8452 0.0054 148 1.8506 0.0054 149 1.8559 0.0053 150 1.8612 0.0053 151 1.8665 0.0053 152 1.8718 0.0053 153 1.8771 0.0053 154 1.8823 0.0052 155 1.8875 0.0052 156 1.8927 0.0052 157 1.8979 0.0052 158 1.9031 0.0052 159 1.9082 0.0051 160 1.9133 0.0051 161 1.9184 0.0051 162 1.9235 0.0051 163 1.9286 0.0051 164 1.9336 0.0050 165 1.9387 0.0050 166 1.9437 0.0050 167 1.9487 0.0050 168 1.9537 0.0050 169 1.9586 0.0050 170 1.9636 0.0049 171 1.9685 0.0049 172 1.9734 0.0049 173 1.9783 0.0049 174 1.9832 0.0049 175 1.9880 0.0049 176 1.9929 0.0048 177 1.9977 0.0048 178 2.0025 0.0048 179 2.0074 0.0048 180 2.0121 0.0048 181 2.0169 0.0048 182 2.0217 0.0048 183 2.0264 0.0047 184 2.0311 0.0047 185 2.0358 0.0047 186 2.0405 0.0047 187 2.0452 0.0047 188 2.0499 0.0047 189 2.0546 0.0047 190 2.0592 0.0046 191 2.0638 0.0046 192 2.0684 0.0046 193 2.0730 0.0046 194 2.0776 0.0046 195 2.0822 0.0046 196 2.0867 0.0046 197 2.0913 0.0045 198 2.0958 0.0045 199 2.1003 0.0045 200 2.1049 0.0045 201 2.1093 0.0045 202 2.1138 0.0045 203 2.1183 0.0045 204 2.1227 0.0045 205 2.1272 0.0044 206 2.1316 0.0044 207 2.1360 0.0044 208 2.1404 0.0044 209 2.1448 0.0044 210 2.1492 0.0044 211 2.1536 0.0044 212 2.1579 0.0044 213 2.1623 0.0043 214 2.1666 0.0043 215 2.1709 0.0043 216 2.1753 0.0043 217 2.1796 0.0043 218 2.1838 0.0043 219 2.1881 0.0043 220 2.1924 0.0043 221 2.1966 0.0043 222 2.2009 0.0042 223 2.2051 0.0042 224 2.2093 0.0042 225 2.2136 0.0042 226 2.2178 0.0042 227 2.2220 0.0042 228 2.2261 0.0042 229 2.2303 0.0042 230 2.2345 0.0042 231 2.2386 0.0041 232 2.2427 0.0041 233 2.2469 0.0041 234 2.2510 0.0041 235 2.2551 0.0041 236 2.2592 0.0041 237 2.2633 0.0041 238 2.2674 0.0041 239 2.2714 0.0041 240 2.2755 0.0041 241 2.2795 0.0040 242 2.2836 0.0040 243 2.2876 0.0040 244 2.2916 0.0040 245 2.2956 0.0040 246 2.2996 0.0040 247 2.3036 0.0040 248 2.3076 0.0040 249 2.3116 0.0040 250 2.3156 0.0040 251 2.3195 0.0040 252 2.3235 0.0039 253 2.3274 0.0039 254 2.3313 0.0039 255 2.3352 0.0039 256 2.3392 0.0039 257 2.3431 0.0039 258 2.3469 0.0039 259 2.3508 0.0039 260 2.3547 0.0039 261 2.3586 0.0039 262 2.3624 0.0039 263 2.3663 0.0039 264 2.3701 0.0038 265 2.3740 0.0038 266 2.3778 0.0038 267 2.3816 0.0038 268 2.3854 0.0038 269 2.3892 0.0038 270 2.3930 0.0038 271 2.3968 0.0038 272 2.4006 0.0038 273 2.4043 0.0038 274 2.4081 0.0038 275 2.4119 0.0038 276 2.4156 0.0037 277 2.4193 0.0037 278 2.4231 0.0037 279 2.4268 0.0037 280 2.4305 0.0037 281 2.4342 0.0037 282 2.4379 0.0037 283 2.4416 0.0037 284 2.4453 0.0037 285 2.4490 0.0037 286 2.4526 0.0037 287 2.4563 0.0037 288 2.4600 0.0037 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0037 0.0006 0.0030 2 0.0037 0.0006 0.0030 3 0.0037 0.0006 0.0030 4 0.0037 0.0006 0.0030 5 0.0037 0.0006 0.0031 6 0.0037 0.0006 0.0031 7 0.0037 0.0007 0.0031 8 0.0037 0.0007 0.0031 9 0.0037 0.0007 0.0031 10 0.0038 0.0007 0.0031 11 0.0038 0.0007 0.0031 12 0.0038 0.0007 0.0031 13 0.0038 0.0007 0.0031 14 0.0038 0.0007 0.0031 15 0.0038 0.0007 0.0032 16 0.0038 0.0007 0.0032 17 0.0038 0.0007 0.0032 18 0.0039 0.0007 0.0032 19 0.0039 0.0007 0.0032 20 0.0039 0.0007 0.0032 21 0.0039 0.0007 0.0032 22 0.0039 0.0007 0.0032 23 0.0039 0.0007 0.0032 24 0.0039 0.0007 0.0032 25 0.0039 0.0007 0.0033 26 0.0040 0.0007 0.0033 27 0.0040 0.0007 0.0033 28 0.0040 0.0007 0.0033 29 0.0040 0.0007 0.0033 30 0.0040 0.0007 0.0033 31 0.0040 0.0007 0.0033 32 0.0040 0.0007 0.0033 33 0.0041 0.0007 0.0033 34 0.0041 0.0007 0.0034 35 0.0041 0.0007 0.0034 36 0.0041 0.0007 0.0034 37 0.0041 0.0007 0.0034 38 0.0041 0.0007 0.0034 39 0.0041 0.0007 0.0034 40 0.0042 0.0007 0.0034 41 0.0042 0.0007 0.0034 42 0.0042 0.0007 0.0035 43 0.0042 0.0007 0.0035 44 0.0042 0.0007 0.0035 45 0.0042 0.0007 0.0035 46 0.0043 0.0007 0.0035 47 0.0043 0.0007 0.0035 48 0.0043 0.0007 0.0035 49 0.0043 0.0008 0.0036 50 0.0043 0.0008 0.0036 51 0.0043 0.0008 0.0036 52 0.0044 0.0008 0.0036 53 0.0044 0.0008 0.0036 54 0.0044 0.0008 0.0036 55 0.0044 0.0008 0.0036 56 0.0044 0.0008 0.0037 57 0.0045 0.0008 0.0037 58 0.0045 0.0008 0.0037 59 0.0045 0.0008 0.0037 60 0.0045 0.0008 0.0037 61 0.0045 0.0008 0.0037 62 0.0045 0.0008 0.0038 63 0.0046 0.0008 0.0038 64 0.0046 0.0008 0.0038 65 0.0046 0.0008 0.0038 66 0.0046 0.0008 0.0038 67 0.0047 0.0008 0.0038 68 0.0047 0.0008 0.0039 69 0.0047 0.0008 0.0039 70 0.0047 0.0008 0.0039 71 0.0047 0.0008 0.0039 72 0.0048 0.0008 0.0039 73 0.0048 0.0008 0.0040 74 0.0048 0.0008 0.0040 75 0.0048 0.0008 0.0040 76 0.0048 0.0008 0.0040 77 0.0049 0.0009 0.0040 78 0.0049 0.0009 0.0040 79 0.0049 0.0009 0.0041 80 0.0049 0.0009 0.0041 81 0.0050 0.0009 0.0041 82 0.0050 0.0009 0.0041 83 0.0050 0.0009 0.0042 84 0.0050 0.0009 0.0042 85 0.0051 0.0009 0.0042 86 0.0051 0.0009 0.0042 87 0.0051 0.0009 0.0042 88 0.0052 0.0009 0.0043 89 0.0052 0.0009 0.0043 90 0.0052 0.0009 0.0043 91 0.0053 0.0009 0.0043 92 0.0053 0.0009 0.0044 93 0.0053 0.0009 0.0044 94 0.0053 0.0009 0.0044 95 0.0054 0.0009 0.0044 96 0.0054 0.0009 0.0045 97 0.0054 0.0010 0.0045 98 0.0055 0.0010 0.0045 99 0.0055 0.0010 0.0045 100 0.0055 0.0010 0.0046 101 0.0056 0.0010 0.0046 102 0.0056 0.0010 0.0046 103 0.0056 0.0010 0.0047 104 0.0057 0.0010 0.0047 105 0.0057 0.0010 0.0047 106 0.0057 0.0010 0.0047 107 0.0058 0.0010 0.0048 108 0.0058 0.0010 0.0048 109 0.0059 0.0010 0.0048 110 0.0059 0.0010 0.0049 111 0.0060 0.0010 0.0049 112 0.0060 0.0010 0.0049 113 0.0060 0.0011 0.0050 114 0.0061 0.0011 0.0050 115 0.0061 0.0011 0.0051 116 0.0062 0.0011 0.0051 117 0.0062 0.0011 0.0051 118 0.0063 0.0011 0.0052 119 0.0063 0.0011 0.0052 120 0.0064 0.0011 0.0052 121 0.0064 0.0011 0.0053 122 0.0065 0.0011 0.0053 123 0.0065 0.0011 0.0054 124 0.0066 0.0011 0.0054 125 0.0066 0.0012 0.0055 126 0.0067 0.0012 0.0055 127 0.0067 0.0012 0.0056 128 0.0068 0.0012 0.0056 129 0.0069 0.0012 0.0057 130 0.0069 0.0012 0.0057 131 0.0070 0.0012 0.0058 132 0.0070 0.0012 0.0058 133 0.0071 0.0012 0.0059 134 0.0072 0.0013 0.0059 135 0.0073 0.0013 0.0060 136 0.0073 0.0013 0.0060 137 0.0074 0.0013 0.0061 138 0.0075 0.0013 0.0062 139 0.0076 0.0013 0.0063 140 0.0076 0.0013 0.0063 141 0.0077 0.0014 0.0064 142 0.0078 0.0014 0.0064 143 0.0079 0.0014 0.0065 144 0.0080 0.0014 0.0066 145 0.0102 0.0018 0.0084 146 0.0103 0.0018 0.0085 147 0.0104 0.0018 0.0086 148 0.0105 0.0018 0.0087 149 0.0106 0.0019 0.0088 150 0.0107 0.0019 0.0088 151 0.0109 0.0019 0.0090 152 0.0109 0.0019 0.0090 153 0.0111 0.0019 0.0092 154 0.0112 0.0020 0.0092 155 0.0114 0.0020 0.0094 156 0.0115 0.0020 0.0095 157 0.0117 0.0020 0.0096 158 0.0118 0.0021 0.0097 159 0.0120 0.0021 0.0099 160 0.0121 0.0021 0.0100 161 0.0123 0.0022 0.0102 162 0.0125 0.0022 0.0103 163 0.0127 0.0022 0.0105 164 0.0128 0.0022 0.0106 165 0.0131 0.0023 0.0108 166 0.0133 0.0023 0.0110 167 0.0136 0.0024 0.0112 168 0.0137 0.0024 0.0113 169 0.0141 0.0025 0.0116 170 0.0143 0.0025 0.0118 171 0.0147 0.0026 0.0121 172 0.0149 0.0026 0.0123 173 0.0154 0.0027 0.0127 174 0.0156 0.0027 0.0129 175 0.0161 0.0028 0.0133 176 0.0164 0.0029 0.0136 177 0.0171 0.0030 0.0141 178 0.0174 0.0030 0.0144 179 0.0182 0.0032 0.0150 180 0.0186 0.0032 0.0154 181 0.0196 0.0034 0.0161 182 0.0201 0.0035 0.0166 183 0.0213 0.0037 0.0176 184 0.0220 0.0039 0.0182 185 0.0177 0.0031 0.0146 186 0.0187 0.0033 0.0154 187 0.0212 0.0037 0.0175 188 0.0229 0.0040 0.0189 189 0.0276 0.0048 0.0228 190 0.0311 0.0054 0.0257 191 0.0445 0.0075 0.0370 192 0.0612 0.0075 0.0537 193 0.1916 0.0075 0.1841 194 0.0363 0.0063 0.0299 195 0.0250 0.0044 0.0206 196 0.0199 0.0035 0.0164 197 0.0228 0.0040 0.0188 198 0.0207 0.0036 0.0171 199 0.0191 0.0033 0.0157 200 0.0178 0.0031 0.0147 201 0.0167 0.0029 0.0138 202 0.0159 0.0028 0.0131 203 0.0151 0.0026 0.0125 204 0.0145 0.0025 0.0120 205 0.0139 0.0024 0.0115 206 0.0134 0.0023 0.0111 207 0.0130 0.0023 0.0107 208 0.0126 0.0022 0.0104 209 0.0122 0.0021 0.0101 210 0.0119 0.0021 0.0098 211 0.0116 0.0020 0.0095 212 0.0113 0.0020 0.0093 213 0.0110 0.0019 0.0091 214 0.0108 0.0019 0.0089 215 0.0106 0.0018 0.0087 216 0.0103 0.0018 0.0085 217 0.0080 0.0014 0.0066 218 0.0079 0.0014 0.0065 219 0.0077 0.0013 0.0063 220 0.0075 0.0013 0.0062 221 0.0074 0.0013 0.0061 222 0.0072 0.0013 0.0060 223 0.0071 0.0012 0.0058 224 0.0070 0.0012 0.0057 225 0.0068 0.0012 0.0056 226 0.0067 0.0012 0.0055 227 0.0066 0.0012 0.0054 228 0.0065 0.0011 0.0054 229 0.0064 0.0011 0.0053 230 0.0063 0.0011 0.0052 231 0.0062 0.0011 0.0051 232 0.0061 0.0011 0.0050 233 0.0060 0.0011 0.0050 234 0.0059 0.0010 0.0049 235 0.0058 0.0010 0.0048 236 0.0058 0.0010 0.0048 237 0.0057 0.0010 0.0047 238 0.0056 0.0010 0.0046 239 0.0056 0.0010 0.0046 240 0.0055 0.0010 0.0045 241 0.0054 0.0009 0.0045 242 0.0054 0.0009 0.0044 243 0.0053 0.0009 0.0044 244 0.0052 0.0009 0.0043 245 0.0052 0.0009 0.0043 246 0.0051 0.0009 0.0042 247 0.0051 0.0009 0.0042 248 0.0050 0.0009 0.0041 249 0.0050 0.0009 0.0041 250 0.0049 0.0009 0.0041 251 0.0049 0.0009 0.0040 252 0.0048 0.0008 0.0040 253 0.0048 0.0008 0.0039 254 0.0047 0.0008 0.0039 255 0.0047 0.0008 0.0039 256 0.0046 0.0008 0.0038 257 0.0046 0.0008 0.0038 258 0.0046 0.0008 0.0038 259 0.0045 0.0008 0.0037 260 0.0045 0.0008 0.0037 261 0.0044 0.0008 0.0037 262 0.0044 0.0008 0.0036 263 0.0044 0.0008 0.0036 264 0.0043 0.0008 0.0036 265 0.0043 0.0008 0.0035 266 0.0043 0.0007 0.0035 267 0.0042 0.0007 0.0035 268 0.0042 0.0007 0.0035 269 0.0042 0.0007 0.0034 270 0.0041 0.0007 0.0034 271 0.0041 0.0007 0.0034 272 0.0041 0.0007 0.0034 273 0.0040 0.0007 0.0033 274 0.0040 0.0007 0.0033 275 0.0040 0.0007 0.0033 276 0.0040 0.0007 0.0033 277 0.0039 0.0007 0.0032 278 0.0039 0.0007 0.0032 279 0.0039 0.0007 0.0032 280 0.0039 0.0007 0.0032 281 0.0038 0.0007 0.0032 282 0.0038 0.0007 0.0031 283 0.0038 0.0007 0.0031 284 0.0038 0.0007 0.0031 285 0.0037 0.0007 0.0031 286 0.0037 0.0006 0.0031 287 0.0037 0.0006 0.0030 288 0.0037 0.0006 0.0030 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.40(In) Total effective rainfall = 2.06(In) Peak flow rate in flood hydrograph = 17.81(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 5.0 10.0 15.0 20.0 ----------------------------------------------------------------------- 0+ 5 0.0003 0.05 Q | | | | 0+10 0.0023 0.28 Q | | | | 0+15 0.0053 0.44 Q | | | | 0+20 0.0085 0.47 Q | | | | 0+25 0.0117 0.48 Q | | | | 0+30 0.0150 0.48 Q | | | | 0+35 0.0183 0.48 Q | | | | 0+40 0.0216 0.48 Q | | | | 0+45 0.0249 0.48 Q | | | | 0+50 0.0283 0.48 Q | | | | 0+55 0.0316 0.48 Q | | | | 1+ 0 0.0350 0.49 Q | | | | 1+ 5 0.0383 0.49 Q | | | | 1+10 0.0417 0.49 Q | | | | 1+15 0.0451 0.49 Q | | | | 1+20 0.0485 0.49 Q | | | | 1+25 0.0519 0.49 Q | | | | 1+30 0.0553 0.50 Q | | | | 1+35 0.0587 0.50 QV | | | | 1+40 0.0621 0.50 QV | | | | 1+45 0.0656 0.50 |Q | | | | 1+50 0.0690 0.50 |Q | | | | 1+55 0.0725 0.50 |Q | | | | 2+ 0 0.0760 0.51 |Q | | | | 2+ 5 0.0795 0.51 |Q | | | | 2+10 0.0830 0.51 |Q | | | | 2+15 0.0865 0.51 |Q | | | | 2+20 0.0900 0.51 |Q | | | | 2+25 0.0935 0.51 |Q | | | | 2+30 0.0971 0.52 |Q | | | | 2+35 0.1007 0.52 |Q | | | | 2+40 0.1042 0.52 |Q | | | | 2+45 0.1078 0.52 |Q | | | | 2+50 0.1114 0.52 |QV | | | | 2+55 0.1151 0.52 |QV | | | | 3+ 0 0.1187 0.53 |QV | | | | 3+ 5 0.1223 0.53 |QV | | | | 3+10 0.1260 0.53 |QV | | | | 3+15 0.1296 0.53 |QV | | | | 3+20 0.1333 0.53 |QV | | | | 3+25 0.1370 0.54 |QV | | | | 3+30 0.1407 0.54 |QV | | | | 3+35 0.1445 0.54 |QV | | | | 3+40 0.1482 0.54 |QV | | | | 3+45 0.1519 0.54 |QV | | | | 3+50 0.1557 0.55 |QV | | | | 3+55 0.1595 0.55 |QV | | | | 4+ 0 0.1633 0.55 |QV | | | | 4+ 5 0.1671 0.55 |Q V | | | | 4+10 0.1709 0.56 |Q V | | | | 4+15 0.1748 0.56 |Q V | | | | 4+20 0.1786 0.56 |Q V | | | | 4+25 0.1825 0.56 |Q V | | | | 4+30 0.1864 0.56 |Q V | | | | 4+35 0.1903 0.57 |Q V | | | | 4+40 0.1942 0.57 |Q V | | | | 4+45 0.1981 0.57 |Q V | | | | 4+50 0.2021 0.57 |Q V | | | | 4+55 0.2061 0.58 |Q V | | | | 5+ 0 0.2101 0.58 |Q V | | | | 5+ 5 0.2141 0.58 |Q V | | | | 5+10 0.2181 0.58 |Q V | | | | 5+15 0.2221 0.59 |Q V | | | | 5+20 0.2262 0.59 |Q V | | | | 5+25 0.2303 0.59 |Q V | | | | 5+30 0.2343 0.59 |Q V | | | | 5+35 0.2385 0.60 |Q V | | | | 5+40 0.2426 0.60 |Q V | | | | 5+45 0.2467 0.60 |Q V | | | | 5+50 0.2509 0.61 |Q V | | | | 5+55 0.2551 0.61 |Q V | | | | 6+ 0 0.2593 0.61 |Q V | | | | 6+ 5 0.2635 0.61 |Q V | | | | 6+10 0.2678 0.62 |Q V | | | | 6+15 0.2720 0.62 |Q V | | | | 6+20 0.2763 0.62 |Q V | | | | 6+25 0.2806 0.63 |Q V | | | | 6+30 0.2850 0.63 |Q V | | | | 6+35 0.2893 0.63 |Q V | | | | 6+40 0.2937 0.63 |Q V | | | | 6+45 0.2981 0.64 |Q V | | | | 6+50 0.3025 0.64 |Q V | | | | 6+55 0.3069 0.64 |Q V | | | | 7+ 0 0.3114 0.65 |Q V | | | | 7+ 5 0.3159 0.65 |Q V | | | | 7+10 0.3204 0.65 |Q V | | | | 7+15 0.3249 0.66 |Q V | | | | 7+20 0.3295 0.66 |Q V | | | | 7+25 0.3341 0.67 |Q V | | | | 7+30 0.3387 0.67 |Q V | | | | 7+35 0.3433 0.67 |Q V | | | | 7+40 0.3480 0.68 |Q V | | | | 7+45 0.3527 0.68 |Q V | | | | 7+50 0.3574 0.68 |Q V | | | | 7+55 0.3621 0.69 |Q V | | | | 8+ 0 0.3669 0.69 |Q V | | | | 8+ 5 0.3717 0.70 |Q V | | | | 8+10 0.3765 0.70 |Q V | | | | 8+15 0.3813 0.70 |Q V | | | | 8+20 0.3862 0.71 |Q V | | | | 8+25 0.3911 0.71 |Q V | | | | 8+30 0.3961 0.72 |Q V | | | | 8+35 0.4011 0.72 |Q V | | | | 8+40 0.4061 0.73 |Q V | | | | 8+45 0.4111 0.73 |Q V | | | | 8+50 0.4162 0.74 |Q V | | | | 8+55 0.4213 0.74 |Q V | | | | 9+ 0 0.4264 0.75 |Q V | | | | 9+ 5 0.4316 0.75 |Q V | | | | 9+10 0.4368 0.76 |Q V | | | | 9+15 0.4420 0.76 |Q V | | | | 9+20 0.4473 0.77 |Q V | | | | 9+25 0.4526 0.77 |Q V | | | | 9+30 0.4580 0.78 |Q V | | | | 9+35 0.4634 0.78 |Q V | | | | 9+40 0.4688 0.79 |Q V | | | | 9+45 0.4743 0.79 |Q V | | | | 9+50 0.4798 0.80 |Q V | | | | 9+55 0.4853 0.81 |Q V | | | | 10+ 0 0.4909 0.81 |Q V | | | | 10+ 5 0.4966 0.82 |Q V | | | | 10+10 0.5023 0.83 |Q V| | | | 10+15 0.5080 0.83 |Q V| | | | 10+20 0.5138 0.84 |Q V| | | | 10+25 0.5196 0.85 |Q V| | | | 10+30 0.5255 0.85 |Q V| | | | 10+35 0.5314 0.86 |Q V| | | | 10+40 0.5374 0.87 |Q V| | | | 10+45 0.5434 0.87 |Q V| | | | 10+50 0.5495 0.88 |Q V| | | | 10+55 0.5556 0.89 |Q V | | | 11+ 0 0.5618 0.90 |Q V | | | 11+ 5 0.5680 0.91 |Q V | | | 11+10 0.5743 0.92 |Q V | | | 11+15 0.5807 0.92 |Q V | | | 11+20 0.5871 0.93 |Q V | | | 11+25 0.5936 0.94 |Q V | | | 11+30 0.6002 0.95 |Q V | | | 11+35 0.6068 0.96 |Q V | | | 11+40 0.6135 0.97 |Q |V | | | 11+45 0.6203 0.98 |Q |V | | | 11+50 0.6271 0.99 |Q |V | | | 11+55 0.6341 1.00 | Q |V | | | 12+ 0 0.6411 1.02 | Q |V | | | 12+ 5 0.6483 1.06 | Q |V | | | 12+10 0.6566 1.20 | Q |V | | | 12+15 0.6656 1.30 | Q |V | | | 12+20 0.6748 1.33 | Q | V | | | 12+25 0.6841 1.35 | Q | V | | | 12+30 0.6935 1.37 | Q | V | | | 12+35 0.7030 1.38 | Q | V | | | 12+40 0.7126 1.39 | Q | V | | | 12+45 0.7223 1.41 | Q | V | | | 12+50 0.7321 1.43 | Q | V | | | 12+55 0.7420 1.44 | Q | V | | | 13+ 0 0.7521 1.46 | Q | V | | | 13+ 5 0.7623 1.48 | Q | V | | | 13+10 0.7726 1.50 | Q | V | | | 13+15 0.7830 1.52 | Q | V | | | 13+20 0.7936 1.54 | Q | V | | | 13+25 0.8043 1.56 | Q | V | | | 13+30 0.8152 1.58 | Q | V | | | 13+35 0.8262 1.60 | Q | V | | | 13+40 0.8375 1.63 | Q | V | | | 13+45 0.8488 1.65 | Q | V | | | 13+50 0.8604 1.68 | Q | V | | | 13+55 0.8722 1.71 | Q | V | | | 14+ 0 0.8841 1.74 | Q | V | | | 14+ 5 0.8963 1.77 | Q | V | | | 14+10 0.9087 1.80 | Q | V | | | 14+15 0.9214 1.84 | Q | V | | | 14+20 0.9343 1.88 | Q | V | | | 14+25 0.9475 1.92 | Q | V | | | 14+30 0.9610 1.96 | Q | V | | | 14+35 0.9748 2.01 | Q | V | | | 14+40 0.9890 2.06 | Q | V | | | 14+45 1.0035 2.11 | Q | V | | | 14+50 1.0185 2.17 | Q | V | | | 14+55 1.0339 2.23 | Q | V | | | 15+ 0 1.0498 2.31 | Q | V | | | 15+ 5 1.0662 2.38 | Q | V| | | 15+10 1.0832 2.48 | Q | V| | | 15+15 1.1009 2.57 | Q | V| | | 15+20 1.1195 2.69 | Q | V | | 15+25 1.1383 2.74 | Q | V | | 15+30 1.1557 2.52 | Q | V | | 15+35 1.1725 2.44 | Q | |V | | 15+40 1.1906 2.63 | Q | |V | | 15+45 1.2106 2.90 | Q | |V | | 15+50 1.2336 3.34 | Q | | V | | 15+55 1.2609 3.96 | Q | | V | | 16+ 0 1.2973 5.29 | Q | V | | 16+ 5 1.3610 9.26 | | Q | V | | 16+10 1.4837 17.81 | | | V | Q | 16+15 1.5715 12.75 | | | Q V | | 16+20 1.6083 5.34 | Q | V | | 16+25 1.6313 3.35 | Q | | V| | 16+30 1.6509 2.84 | Q | | V| | 16+35 1.6698 2.74 | Q | | V | 16+40 1.6873 2.55 | Q | | V | 16+45 1.7036 2.37 | Q | | V | 16+50 1.7189 2.22 | Q | | V | 16+55 1.7334 2.10 | Q | | |V | 17+ 0 1.7471 2.00 | Q | | |V | 17+ 5 1.7603 1.91 | Q | | |V | 17+10 1.7729 1.83 | Q | | |V | 17+15 1.7850 1.76 | Q | | | V | 17+20 1.7967 1.70 | Q | | | V | 17+25 1.8080 1.65 | Q | | | V | 17+30 1.8190 1.60 | Q | | | V | 17+35 1.8297 1.55 | Q | | | V | 17+40 1.8401 1.51 | Q | | | V | 17+45 1.8503 1.47 | Q | | | V | 17+50 1.8602 1.44 | Q | | | V | 17+55 1.8699 1.41 | Q | | | V | 18+ 0 1.8793 1.38 | Q | | | V | 18+ 5 1.8884 1.32 | Q | | | V | 18+10 1.8964 1.16 | Q | | | V | 18+15 1.9036 1.05 | Q | | | V | 18+20 1.9106 1.01 | Q | | | V | 18+25 1.9173 0.98 |Q | | | V | 18+30 1.9239 0.96 |Q | | | V | 18+35 1.9304 0.94 |Q | | | V | 18+40 1.9367 0.92 |Q | | | V | 18+45 1.9430 0.91 |Q | | | V | 18+50 1.9491 0.89 |Q | | | V | 18+55 1.9551 0.87 |Q | | | V | 19+ 0 1.9610 0.86 |Q | | | V | 19+ 5 1.9668 0.84 |Q | | | V | 19+10 1.9725 0.83 |Q | | | V | 19+15 1.9782 0.82 |Q | | | V | 19+20 1.9837 0.80 |Q | | | V | 19+25 1.9892 0.79 |Q | | | V | 19+30 1.9946 0.78 |Q | | | V | 19+35 1.9999 0.77 |Q | | | V | 19+40 2.0051 0.76 |Q | | | V | 19+45 2.0103 0.75 |Q | | | V | 19+50 2.0153 0.74 |Q | | | V | 19+55 2.0204 0.73 |Q | | | V | 20+ 0 2.0253 0.72 |Q | | | V | 20+ 5 2.0302 0.71 |Q | | | V | 20+10 2.0351 0.70 |Q | | | V | 20+15 2.0399 0.70 |Q | | | V | 20+20 2.0446 0.69 |Q | | | V | 20+25 2.0493 0.68 |Q | | | V | 20+30 2.0539 0.67 |Q | | | V | 20+35 2.0585 0.66 |Q | | | V | 20+40 2.0630 0.66 |Q | | | V | 20+45 2.0675 0.65 |Q | | | V | 20+50 2.0719 0.64 |Q | | | V | 20+55 2.0763 0.64 |Q | | | V | 21+ 0 2.0807 0.63 |Q | | | V | 21+ 5 2.0850 0.62 |Q | | | V | 21+10 2.0892 0.62 |Q | | | V | 21+15 2.0934 0.61 |Q | | | V | 21+20 2.0976 0.61 |Q | | | V | 21+25 2.1018 0.60 |Q | | | V | 21+30 2.1059 0.60 |Q | | | V | 21+35 2.1099 0.59 |Q | | | V | 21+40 2.1140 0.59 |Q | | | V | 21+45 2.1180 0.58 |Q | | | V | 21+50 2.1219 0.58 |Q | | | V | 21+55 2.1259 0.57 |Q | | | V | 22+ 0 2.1298 0.57 |Q | | | V | 22+ 5 2.1336 0.56 |Q | | | V | 22+10 2.1375 0.56 |Q | | | V | 22+15 2.1413 0.55 |Q | | | V | 22+20 2.1451 0.55 |Q | | | V | 22+25 2.1488 0.54 |Q | | | V | 22+30 2.1525 0.54 |Q | | | V | 22+35 2.1562 0.54 |Q | | | V | 22+40 2.1599 0.53 |Q | | | V | 22+45 2.1635 0.53 |Q | | | V | 22+50 2.1671 0.52 |Q | | | V| 22+55 2.1707 0.52 |Q | | | V| 23+ 0 2.1743 0.52 |Q | | | V| 23+ 5 2.1778 0.51 |Q | | | V| 23+10 2.1813 0.51 |Q | | | V| 23+15 2.1848 0.51 |Q | | | V| 23+20 2.1883 0.50 |Q | | | V| 23+25 2.1917 0.50 Q | | | V| 23+30 2.1951 0.50 Q | | | V| 23+35 2.1985 0.49 Q | | | V| 23+40 2.2019 0.49 Q | | | V| 23+45 2.2053 0.49 Q | | | V| 23+50 2.2086 0.48 Q | | | V| 23+55 2.2119 0.48 Q | | | V| 24+ 0 2.2152 0.48 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.6 UNIT HYDROGRAPH ANALYSIS POST-DEVELOPMENT CONDITIONS – 10 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 10-YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 10 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 10 24.47 1 0.82 -------------------------------------------------------------------- Rainfall data for year 10 24.47 6 2.07 -------------------------------------------------------------------- Rainfall data for year 10 24.47 24 3.81 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 24.47 1.000 0.978 0.120 0.117 Area-averaged adjusted loss rate Fm (In/Hr) = 0.117 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 2.94 0.120 32.0 32.0 19.05 0.000 21.53 0.880 98.0 98.0 0.20 0.938 Area-averaged catchment yield fraction, Y = 0.826 Area-averaged low loss fraction, Yb = 0.174 User entry of time of concentration = 0.142 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 24.47(Ac.) Catchment Lag time = 0.114 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 73.1080 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.117(In/Hr) Average low loss rate fraction (Yb) = 0.174 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.305(In) Computed peak 30-minute rainfall = 0.624(In) Specified peak 1-hour rainfall = 0.823(In) Computed peak 3-hour rainfall = 1.449(In) Specified peak 6-hour rainfall = 2.070(In) Specified peak 24-hour rainfall = 3.810(In) Rainfall depth area reduction factors: Using a total area of 24.47(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.304(In) 30-minute factor = 0.999 Adjusted rainfall = 0.623(In) 1-hour factor = 0.999 Adjusted rainfall = 0.822(In) 3-hour factor = 1.000 Adjusted rainfall = 1.449(In) 6-hour factor = 1.000 Adjusted rainfall = 2.070(In) 24-hour factor = 1.000 Adjusted rainfall = 3.810(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 295.93 (CFS)) 1 9.533 28.213 2 56.811 139.910 3 91.068 101.378 4 98.284 21.355 5 100.000 5.079 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3042 0.3042 2 0.4015 0.0972 3 0.4721 0.0707 4 0.5297 0.0576 5 0.5792 0.0495 6 0.6230 0.0438 7 0.6626 0.0396 8 0.6990 0.0364 9 0.7327 0.0337 10 0.7642 0.0315 11 0.7939 0.0297 12 0.8221 0.0281 13 0.8567 0.0346 14 0.8901 0.0334 15 0.9223 0.0322 16 0.9535 0.0312 17 0.9838 0.0303 18 1.0132 0.0294 19 1.0419 0.0286 20 1.0698 0.0279 21 1.0971 0.0273 22 1.1237 0.0266 23 1.1498 0.0261 24 1.1753 0.0255 25 1.2003 0.0250 26 1.2248 0.0245 27 1.2489 0.0241 28 1.2725 0.0236 29 1.2957 0.0232 30 1.3186 0.0229 31 1.3411 0.0225 32 1.3632 0.0221 33 1.3850 0.0218 34 1.4065 0.0215 35 1.4277 0.0212 36 1.4486 0.0209 37 1.4692 0.0206 38 1.4895 0.0203 39 1.5095 0.0201 40 1.5293 0.0198 41 1.5489 0.0196 42 1.5682 0.0193 43 1.5874 0.0191 44 1.6063 0.0189 45 1.6250 0.0187 46 1.6434 0.0185 47 1.6617 0.0183 48 1.6799 0.0181 49 1.6978 0.0179 50 1.7155 0.0178 51 1.7331 0.0176 52 1.7505 0.0174 53 1.7678 0.0173 54 1.7849 0.0171 55 1.8018 0.0169 56 1.8186 0.0168 57 1.8353 0.0166 58 1.8518 0.0165 59 1.8681 0.0164 60 1.8844 0.0162 61 1.9005 0.0161 62 1.9165 0.0160 63 1.9323 0.0159 64 1.9481 0.0157 65 1.9637 0.0156 66 1.9792 0.0155 67 1.9945 0.0154 68 2.0098 0.0153 69 2.0250 0.0152 70 2.0400 0.0151 71 2.0550 0.0150 72 2.0698 0.0149 73 2.0824 0.0126 74 2.0950 0.0125 75 2.1074 0.0124 76 2.1197 0.0123 77 2.1319 0.0122 78 2.1441 0.0121 79 2.1561 0.0121 80 2.1681 0.0120 81 2.1800 0.0119 82 2.1918 0.0118 83 2.2035 0.0117 84 2.2151 0.0116 85 2.2267 0.0116 86 2.2382 0.0115 87 2.2496 0.0114 88 2.2610 0.0113 89 2.2722 0.0113 90 2.2834 0.0112 91 2.2946 0.0111 92 2.3056 0.0111 93 2.3166 0.0110 94 2.3276 0.0109 95 2.3384 0.0109 96 2.3492 0.0108 97 2.3600 0.0107 98 2.3706 0.0107 99 2.3813 0.0106 100 2.3918 0.0106 101 2.4023 0.0105 102 2.4127 0.0104 103 2.4231 0.0104 104 2.4335 0.0103 105 2.4437 0.0103 106 2.4539 0.0102 107 2.4641 0.0102 108 2.4742 0.0101 109 2.4843 0.0101 110 2.4943 0.0100 111 2.5042 0.0100 112 2.5141 0.0099 113 2.5240 0.0099 114 2.5338 0.0098 115 2.5436 0.0098 116 2.5533 0.0097 117 2.5629 0.0097 118 2.5725 0.0096 119 2.5821 0.0096 120 2.5916 0.0095 121 2.6011 0.0095 122 2.6106 0.0094 123 2.6200 0.0094 124 2.6293 0.0094 125 2.6386 0.0093 126 2.6479 0.0093 127 2.6571 0.0092 128 2.6663 0.0092 129 2.6755 0.0091 130 2.6846 0.0091 131 2.6936 0.0091 132 2.7027 0.0090 133 2.7117 0.0090 134 2.7206 0.0090 135 2.7295 0.0089 136 2.7384 0.0089 137 2.7473 0.0088 138 2.7561 0.0088 139 2.7648 0.0088 140 2.7736 0.0087 141 2.7823 0.0087 142 2.7909 0.0087 143 2.7996 0.0086 144 2.8082 0.0086 145 2.8167 0.0086 146 2.8253 0.0085 147 2.8338 0.0085 148 2.8422 0.0085 149 2.8507 0.0084 150 2.8591 0.0084 151 2.8675 0.0084 152 2.8758 0.0083 153 2.8841 0.0083 154 2.8924 0.0083 155 2.9006 0.0083 156 2.9089 0.0082 157 2.9171 0.0082 158 2.9252 0.0082 159 2.9334 0.0081 160 2.9415 0.0081 161 2.9495 0.0081 162 2.9576 0.0080 163 2.9656 0.0080 164 2.9736 0.0080 165 2.9816 0.0080 166 2.9895 0.0079 167 2.9974 0.0079 168 3.0053 0.0079 169 3.0132 0.0079 170 3.0210 0.0078 171 3.0288 0.0078 172 3.0366 0.0078 173 3.0443 0.0078 174 3.0521 0.0077 175 3.0598 0.0077 176 3.0675 0.0077 177 3.0751 0.0077 178 3.0828 0.0076 179 3.0904 0.0076 180 3.0980 0.0076 181 3.1055 0.0076 182 3.1131 0.0075 183 3.1206 0.0075 184 3.1281 0.0075 185 3.1355 0.0075 186 3.1430 0.0074 187 3.1504 0.0074 188 3.1578 0.0074 189 3.1652 0.0074 190 3.1726 0.0074 191 3.1799 0.0073 192 3.1872 0.0073 193 3.1945 0.0073 194 3.2018 0.0073 195 3.2090 0.0073 196 3.2163 0.0072 197 3.2235 0.0072 198 3.2307 0.0072 199 3.2378 0.0072 200 3.2450 0.0072 201 3.2521 0.0071 202 3.2592 0.0071 203 3.2663 0.0071 204 3.2734 0.0071 205 3.2805 0.0071 206 3.2875 0.0070 207 3.2945 0.0070 208 3.3015 0.0070 209 3.3085 0.0070 210 3.3154 0.0070 211 3.3224 0.0069 212 3.3293 0.0069 213 3.3362 0.0069 214 3.3431 0.0069 215 3.3499 0.0069 216 3.3568 0.0068 217 3.3636 0.0068 218 3.3704 0.0068 219 3.3772 0.0068 220 3.3840 0.0068 221 3.3908 0.0068 222 3.3975 0.0067 223 3.4042 0.0067 224 3.4110 0.0067 225 3.4176 0.0067 226 3.4243 0.0067 227 3.4310 0.0067 228 3.4376 0.0066 229 3.4443 0.0066 230 3.4509 0.0066 231 3.4575 0.0066 232 3.4640 0.0066 233 3.4706 0.0066 234 3.4772 0.0065 235 3.4837 0.0065 236 3.4902 0.0065 237 3.4967 0.0065 238 3.5032 0.0065 239 3.5097 0.0065 240 3.5161 0.0065 241 3.5226 0.0064 242 3.5290 0.0064 243 3.5354 0.0064 244 3.5418 0.0064 245 3.5482 0.0064 246 3.5545 0.0064 247 3.5609 0.0064 248 3.5672 0.0063 249 3.5735 0.0063 250 3.5799 0.0063 251 3.5862 0.0063 252 3.5924 0.0063 253 3.5987 0.0063 254 3.6050 0.0063 255 3.6112 0.0062 256 3.6174 0.0062 257 3.6236 0.0062 258 3.6298 0.0062 259 3.6360 0.0062 260 3.6422 0.0062 261 3.6483 0.0062 262 3.6545 0.0061 263 3.6606 0.0061 264 3.6667 0.0061 265 3.6728 0.0061 266 3.6789 0.0061 267 3.6850 0.0061 268 3.6911 0.0061 269 3.6971 0.0061 270 3.7032 0.0060 271 3.7092 0.0060 272 3.7152 0.0060 273 3.7212 0.0060 274 3.7272 0.0060 275 3.7332 0.0060 276 3.7392 0.0060 277 3.7451 0.0060 278 3.7511 0.0059 279 3.7570 0.0059 280 3.7629 0.0059 281 3.7688 0.0059 282 3.7747 0.0059 283 3.7806 0.0059 284 3.7865 0.0059 285 3.7924 0.0059 286 3.7982 0.0059 287 3.8041 0.0058 288 3.8099 0.0058 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0058 0.0010 0.0048 2 0.0058 0.0010 0.0048 3 0.0059 0.0010 0.0048 4 0.0059 0.0010 0.0049 5 0.0059 0.0010 0.0049 6 0.0059 0.0010 0.0049 7 0.0059 0.0010 0.0049 8 0.0059 0.0010 0.0049 9 0.0060 0.0010 0.0049 10 0.0060 0.0010 0.0049 11 0.0060 0.0010 0.0050 12 0.0060 0.0010 0.0050 13 0.0060 0.0011 0.0050 14 0.0061 0.0011 0.0050 15 0.0061 0.0011 0.0050 16 0.0061 0.0011 0.0050 17 0.0061 0.0011 0.0051 18 0.0061 0.0011 0.0051 19 0.0062 0.0011 0.0051 20 0.0062 0.0011 0.0051 21 0.0062 0.0011 0.0051 22 0.0062 0.0011 0.0051 23 0.0062 0.0011 0.0052 24 0.0063 0.0011 0.0052 25 0.0063 0.0011 0.0052 26 0.0063 0.0011 0.0052 27 0.0063 0.0011 0.0052 28 0.0063 0.0011 0.0052 29 0.0064 0.0011 0.0053 30 0.0064 0.0011 0.0053 31 0.0064 0.0011 0.0053 32 0.0064 0.0011 0.0053 33 0.0065 0.0011 0.0053 34 0.0065 0.0011 0.0053 35 0.0065 0.0011 0.0054 36 0.0065 0.0011 0.0054 37 0.0065 0.0011 0.0054 38 0.0066 0.0011 0.0054 39 0.0066 0.0011 0.0054 40 0.0066 0.0012 0.0055 41 0.0066 0.0012 0.0055 42 0.0067 0.0012 0.0055 43 0.0067 0.0012 0.0055 44 0.0067 0.0012 0.0055 45 0.0067 0.0012 0.0056 46 0.0068 0.0012 0.0056 47 0.0068 0.0012 0.0056 48 0.0068 0.0012 0.0056 49 0.0068 0.0012 0.0057 50 0.0069 0.0012 0.0057 51 0.0069 0.0012 0.0057 52 0.0069 0.0012 0.0057 53 0.0070 0.0012 0.0057 54 0.0070 0.0012 0.0058 55 0.0070 0.0012 0.0058 56 0.0070 0.0012 0.0058 57 0.0071 0.0012 0.0058 58 0.0071 0.0012 0.0059 59 0.0071 0.0012 0.0059 60 0.0072 0.0012 0.0059 61 0.0072 0.0013 0.0059 62 0.0072 0.0013 0.0060 63 0.0073 0.0013 0.0060 64 0.0073 0.0013 0.0060 65 0.0073 0.0013 0.0060 66 0.0073 0.0013 0.0061 67 0.0074 0.0013 0.0061 68 0.0074 0.0013 0.0061 69 0.0074 0.0013 0.0062 70 0.0075 0.0013 0.0062 71 0.0075 0.0013 0.0062 72 0.0075 0.0013 0.0062 73 0.0076 0.0013 0.0063 74 0.0076 0.0013 0.0063 75 0.0077 0.0013 0.0063 76 0.0077 0.0013 0.0063 77 0.0077 0.0013 0.0064 78 0.0078 0.0014 0.0064 79 0.0078 0.0014 0.0064 80 0.0078 0.0014 0.0065 81 0.0079 0.0014 0.0065 82 0.0079 0.0014 0.0065 83 0.0080 0.0014 0.0066 84 0.0080 0.0014 0.0066 85 0.0080 0.0014 0.0066 86 0.0081 0.0014 0.0067 87 0.0081 0.0014 0.0067 88 0.0082 0.0014 0.0067 89 0.0082 0.0014 0.0068 90 0.0083 0.0014 0.0068 91 0.0083 0.0014 0.0069 92 0.0083 0.0015 0.0069 93 0.0084 0.0015 0.0069 94 0.0084 0.0015 0.0070 95 0.0085 0.0015 0.0070 96 0.0085 0.0015 0.0070 97 0.0086 0.0015 0.0071 98 0.0086 0.0015 0.0071 99 0.0087 0.0015 0.0072 100 0.0087 0.0015 0.0072 101 0.0088 0.0015 0.0073 102 0.0088 0.0015 0.0073 103 0.0089 0.0016 0.0074 104 0.0090 0.0016 0.0074 105 0.0090 0.0016 0.0075 106 0.0091 0.0016 0.0075 107 0.0091 0.0016 0.0076 108 0.0092 0.0016 0.0076 109 0.0093 0.0016 0.0077 110 0.0093 0.0016 0.0077 111 0.0094 0.0016 0.0078 112 0.0094 0.0016 0.0078 113 0.0095 0.0017 0.0079 114 0.0096 0.0017 0.0079 115 0.0097 0.0017 0.0080 116 0.0097 0.0017 0.0080 117 0.0098 0.0017 0.0081 118 0.0099 0.0017 0.0081 119 0.0100 0.0017 0.0082 120 0.0100 0.0017 0.0083 121 0.0101 0.0018 0.0083 122 0.0102 0.0018 0.0084 123 0.0103 0.0018 0.0085 124 0.0103 0.0018 0.0085 125 0.0104 0.0018 0.0086 126 0.0105 0.0018 0.0087 127 0.0106 0.0018 0.0088 128 0.0107 0.0019 0.0088 129 0.0108 0.0019 0.0089 130 0.0109 0.0019 0.0090 131 0.0110 0.0019 0.0091 132 0.0111 0.0019 0.0091 133 0.0112 0.0020 0.0093 134 0.0113 0.0020 0.0093 135 0.0114 0.0020 0.0094 136 0.0115 0.0020 0.0095 137 0.0116 0.0020 0.0096 138 0.0117 0.0020 0.0097 139 0.0119 0.0021 0.0098 140 0.0120 0.0021 0.0099 141 0.0121 0.0021 0.0100 142 0.0122 0.0021 0.0101 143 0.0124 0.0022 0.0103 144 0.0125 0.0022 0.0103 145 0.0149 0.0026 0.0123 146 0.0150 0.0026 0.0123 147 0.0152 0.0026 0.0125 148 0.0153 0.0027 0.0126 149 0.0155 0.0027 0.0128 150 0.0156 0.0027 0.0129 151 0.0159 0.0028 0.0131 152 0.0160 0.0028 0.0132 153 0.0162 0.0028 0.0134 154 0.0164 0.0029 0.0135 155 0.0166 0.0029 0.0137 156 0.0168 0.0029 0.0139 157 0.0171 0.0030 0.0141 158 0.0173 0.0030 0.0142 159 0.0176 0.0031 0.0145 160 0.0178 0.0031 0.0147 161 0.0181 0.0032 0.0150 162 0.0183 0.0032 0.0151 163 0.0187 0.0033 0.0154 164 0.0189 0.0033 0.0156 165 0.0193 0.0034 0.0160 166 0.0196 0.0034 0.0162 167 0.0201 0.0035 0.0166 168 0.0203 0.0035 0.0168 169 0.0209 0.0036 0.0173 170 0.0212 0.0037 0.0175 171 0.0218 0.0038 0.0180 172 0.0221 0.0039 0.0183 173 0.0229 0.0040 0.0189 174 0.0232 0.0040 0.0192 175 0.0241 0.0042 0.0199 176 0.0245 0.0043 0.0203 177 0.0255 0.0044 0.0211 178 0.0261 0.0045 0.0215 179 0.0273 0.0047 0.0225 180 0.0279 0.0049 0.0231 181 0.0294 0.0051 0.0243 182 0.0303 0.0053 0.0250 183 0.0322 0.0056 0.0266 184 0.0334 0.0058 0.0276 185 0.0281 0.0049 0.0232 186 0.0297 0.0052 0.0245 187 0.0337 0.0059 0.0278 188 0.0364 0.0063 0.0300 189 0.0438 0.0076 0.0362 190 0.0495 0.0086 0.0408 191 0.0707 0.0098 0.0609 192 0.0972 0.0098 0.0874 193 0.3042 0.0098 0.2945 194 0.0576 0.0098 0.0478 195 0.0396 0.0069 0.0327 196 0.0315 0.0055 0.0260 197 0.0346 0.0060 0.0286 198 0.0312 0.0054 0.0258 199 0.0286 0.0050 0.0237 200 0.0266 0.0046 0.0220 201 0.0250 0.0044 0.0206 202 0.0236 0.0041 0.0195 203 0.0225 0.0039 0.0186 204 0.0215 0.0037 0.0177 205 0.0206 0.0036 0.0170 206 0.0198 0.0034 0.0164 207 0.0191 0.0033 0.0158 208 0.0185 0.0032 0.0153 209 0.0179 0.0031 0.0148 210 0.0174 0.0030 0.0144 211 0.0169 0.0030 0.0140 212 0.0165 0.0029 0.0136 213 0.0161 0.0028 0.0133 214 0.0157 0.0027 0.0130 215 0.0154 0.0027 0.0127 216 0.0151 0.0026 0.0124 217 0.0126 0.0022 0.0104 218 0.0123 0.0021 0.0102 219 0.0121 0.0021 0.0100 220 0.0118 0.0021 0.0097 221 0.0116 0.0020 0.0096 222 0.0113 0.0020 0.0094 223 0.0111 0.0019 0.0092 224 0.0109 0.0019 0.0090 225 0.0107 0.0019 0.0089 226 0.0106 0.0018 0.0087 227 0.0104 0.0018 0.0086 228 0.0102 0.0018 0.0084 229 0.0101 0.0018 0.0083 230 0.0099 0.0017 0.0082 231 0.0098 0.0017 0.0081 232 0.0096 0.0017 0.0079 233 0.0095 0.0017 0.0078 234 0.0094 0.0016 0.0077 235 0.0092 0.0016 0.0076 236 0.0091 0.0016 0.0075 237 0.0090 0.0016 0.0074 238 0.0089 0.0015 0.0073 239 0.0088 0.0015 0.0072 240 0.0087 0.0015 0.0072 241 0.0086 0.0015 0.0071 242 0.0085 0.0015 0.0070 243 0.0084 0.0015 0.0069 244 0.0083 0.0014 0.0068 245 0.0082 0.0014 0.0068 246 0.0081 0.0014 0.0067 247 0.0080 0.0014 0.0066 248 0.0079 0.0014 0.0066 249 0.0079 0.0014 0.0065 250 0.0078 0.0014 0.0064 251 0.0077 0.0013 0.0064 252 0.0076 0.0013 0.0063 253 0.0076 0.0013 0.0062 254 0.0075 0.0013 0.0062 255 0.0074 0.0013 0.0061 256 0.0074 0.0013 0.0061 257 0.0073 0.0013 0.0060 258 0.0072 0.0013 0.0060 259 0.0072 0.0012 0.0059 260 0.0071 0.0012 0.0059 261 0.0071 0.0012 0.0058 262 0.0070 0.0012 0.0058 263 0.0069 0.0012 0.0057 264 0.0069 0.0012 0.0057 265 0.0068 0.0012 0.0056 266 0.0068 0.0012 0.0056 267 0.0067 0.0012 0.0056 268 0.0067 0.0012 0.0055 269 0.0066 0.0012 0.0055 270 0.0066 0.0011 0.0054 271 0.0065 0.0011 0.0054 272 0.0065 0.0011 0.0054 273 0.0064 0.0011 0.0053 274 0.0064 0.0011 0.0053 275 0.0064 0.0011 0.0052 276 0.0063 0.0011 0.0052 277 0.0063 0.0011 0.0052 278 0.0062 0.0011 0.0051 279 0.0062 0.0011 0.0051 280 0.0061 0.0011 0.0051 281 0.0061 0.0011 0.0050 282 0.0061 0.0011 0.0050 283 0.0060 0.0011 0.0050 284 0.0060 0.0010 0.0049 285 0.0060 0.0010 0.0049 286 0.0059 0.0010 0.0049 287 0.0059 0.0010 0.0049 288 0.0059 0.0010 0.0048 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.61(In) Total effective rainfall = 3.20(In) Peak flow rate in flood hydrograph = 52.92(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 15.0 30.0 45.0 60.0 ----------------------------------------------------------------------- 0+ 5 0.0009 0.14 Q | | | | 0+10 0.0065 0.81 Q | | | | 0+15 0.0155 1.30 Q | | | | 0+20 0.0251 1.41 Q | | | | 0+25 0.0350 1.43 Q | | | | 0+30 0.0449 1.44 Q | | | | 0+35 0.0549 1.44 Q | | | | 0+40 0.0648 1.45 Q | | | | 0+45 0.0748 1.45 Q | | | | 0+50 0.0849 1.46 Q | | | | 0+55 0.0949 1.46 Q | | | | 1+ 0 0.1050 1.47 Q | | | | 1+ 5 0.1151 1.47 Q | | | | 1+10 0.1253 1.47 Q | | | | 1+15 0.1355 1.48 Q | | | | 1+20 0.1457 1.48 Q | | | | 1+25 0.1559 1.49 Q | | | | 1+30 0.1662 1.49 QV | | | | 1+35 0.1765 1.50 QV | | | | 1+40 0.1869 1.50 |Q | | | | 1+45 0.1972 1.51 |Q | | | | 1+50 0.2077 1.51 |Q | | | | 1+55 0.2181 1.52 |Q | | | | 2+ 0 0.2286 1.52 |Q | | | | 2+ 5 0.2391 1.53 |Q | | | | 2+10 0.2496 1.53 |Q | | | | 2+15 0.2602 1.54 |Q | | | | 2+20 0.2709 1.54 |Q | | | | 2+25 0.2815 1.55 |Q | | | | 2+30 0.2922 1.55 |Q | | | | 2+35 0.3029 1.56 |Q | | | | 2+40 0.3137 1.56 |Q | | | | 2+45 0.3245 1.57 |Q | | | | 2+50 0.3354 1.57 |QV | | | | 2+55 0.3462 1.58 |QV | | | | 3+ 0 0.3572 1.59 |QV | | | | 3+ 5 0.3681 1.59 |QV | | | | 3+10 0.3791 1.60 |QV | | | | 3+15 0.3901 1.60 |QV | | | | 3+20 0.4012 1.61 |QV | | | | 3+25 0.4123 1.61 |QV | | | | 3+30 0.4235 1.62 |QV | | | | 3+35 0.4347 1.63 |QV | | | | 3+40 0.4459 1.63 |QV | | | | 3+45 0.4572 1.64 |QV | | | | 3+50 0.4685 1.64 |QV | | | | 3+55 0.4799 1.65 |QV | | | | 4+ 0 0.4913 1.66 |Q V | | | | 4+ 5 0.5028 1.66 |Q V | | | | 4+10 0.5143 1.67 |Q V | | | | 4+15 0.5258 1.68 |Q V | | | | 4+20 0.5374 1.68 |Q V | | | | 4+25 0.5491 1.69 |Q V | | | | 4+30 0.5607 1.70 |Q V | | | | 4+35 0.5725 1.70 |Q V | | | | 4+40 0.5842 1.71 |Q V | | | | 4+45 0.5961 1.72 |Q V | | | | 4+50 0.6079 1.72 |Q V | | | | 4+55 0.6199 1.73 |Q V | | | | 5+ 0 0.6318 1.74 |Q V | | | | 5+ 5 0.6439 1.75 |Q V | | | | 5+10 0.6559 1.75 |Q V | | | | 5+15 0.6681 1.76 |Q V | | | | 5+20 0.6802 1.77 |Q V | | | | 5+25 0.6925 1.78 |Q V | | | | 5+30 0.7047 1.78 |Q V | | | | 5+35 0.7171 1.79 |Q V | | | | 5+40 0.7295 1.80 |Q V | | | | 5+45 0.7419 1.81 |Q V | | | | 5+50 0.7544 1.82 |Q V | | | | 5+55 0.7670 1.82 |Q V | | | | 6+ 0 0.7796 1.83 |Q V | | | | 6+ 5 0.7923 1.84 |Q V | | | | 6+10 0.8050 1.85 |Q V | | | | 6+15 0.8178 1.86 |Q V | | | | 6+20 0.8307 1.87 |Q V | | | | 6+25 0.8436 1.88 |Q V | | | | 6+30 0.8565 1.88 |Q V | | | | 6+35 0.8696 1.89 |Q V | | | | 6+40 0.8827 1.90 |Q V | | | | 6+45 0.8959 1.91 |Q V | | | | 6+50 0.9091 1.92 |Q V | | | | 6+55 0.9224 1.93 |Q V | | | | 7+ 0 0.9358 1.94 |Q V | | | | 7+ 5 0.9492 1.95 |Q V | | | | 7+10 0.9627 1.96 |Q V | | | | 7+15 0.9763 1.97 |Q V | | | | 7+20 0.9899 1.98 |Q V | | | | 7+25 1.0036 1.99 |Q V | | | | 7+30 1.0174 2.00 |Q V | | | | 7+35 1.0313 2.01 |Q V | | | | 7+40 1.0453 2.02 |Q V | | | | 7+45 1.0593 2.04 |Q V | | | | 7+50 1.0734 2.05 |Q V | | | | 7+55 1.0875 2.06 |Q V | | | | 8+ 0 1.1018 2.07 |Q V | | | | 8+ 5 1.1161 2.08 |Q V | | | | 8+10 1.1306 2.09 |Q V | | | | 8+15 1.1451 2.11 |Q V | | | | 8+20 1.1597 2.12 |Q V | | | | 8+25 1.1744 2.13 |Q V | | | | 8+30 1.1891 2.14 |Q V | | | | 8+35 1.2040 2.16 |Q V | | | | 8+40 1.2189 2.17 |Q V | | | | 8+45 1.2340 2.18 |Q V | | | | 8+50 1.2491 2.20 |Q V | | | | 8+55 1.2644 2.21 |Q V | | | | 9+ 0 1.2797 2.23 |Q V | | | | 9+ 5 1.2951 2.24 |Q V | | | | 9+10 1.3107 2.26 |Q V | | | | 9+15 1.3263 2.27 |Q V | | | | 9+20 1.3421 2.29 |Q V | | | | 9+25 1.3579 2.30 |Q V | | | | 9+30 1.3739 2.32 |Q V | | | | 9+35 1.3900 2.33 |Q V | | | | 9+40 1.4062 2.35 |Q V | | | | 9+45 1.4225 2.37 |Q V | | | | 9+50 1.4389 2.39 |Q V | | | | 9+55 1.4555 2.40 |Q V | | | | 10+ 0 1.4722 2.42 |Q V| | | | 10+ 5 1.4890 2.44 |Q V| | | | 10+10 1.5059 2.46 |Q V| | | | 10+15 1.5230 2.48 |Q V| | | | 10+20 1.5402 2.50 |Q V| | | | 10+25 1.5575 2.52 |Q V| | | | 10+30 1.5750 2.54 |Q V| | | | 10+35 1.5926 2.56 |Q V| | | | 10+40 1.6104 2.58 |Q V| | | | 10+45 1.6283 2.60 |Q V| | | | 10+50 1.6464 2.63 |Q V | | | 10+55 1.6647 2.65 |Q V | | | 11+ 0 1.6831 2.67 |Q V | | | 11+ 5 1.7017 2.70 |Q V | | | 11+10 1.7204 2.72 |Q V | | | 11+15 1.7393 2.75 |Q V | | | 11+20 1.7584 2.77 |Q V | | | 11+25 1.7777 2.80 |Q V | | | 11+30 1.7972 2.83 |Q |V | | | 11+35 1.8169 2.86 |Q |V | | | 11+40 1.8368 2.89 |Q |V | | | 11+45 1.8569 2.92 |Q |V | | | 11+50 1.8772 2.95 |Q |V | | | 11+55 1.8977 2.98 |Q |V | | | 12+ 0 1.9184 3.01 | Q |V | | | 12+ 5 1.9398 3.10 | Q |V | | | 12+10 1.9631 3.38 | Q | V | | | 12+15 1.9878 3.60 | Q | V | | | 12+20 2.0131 3.67 | Q | V | | | 12+25 2.0388 3.72 | Q | V | | | 12+30 2.0647 3.76 | Q | V | | | 12+35 2.0909 3.80 | Q | V | | | 12+40 2.1174 3.85 | Q | V | | | 12+45 2.1442 3.89 | Q | V | | | 12+50 2.1713 3.94 | Q | V | | | 12+55 2.1988 3.99 | Q | V | | | 13+ 0 2.2266 4.04 | Q | V | | | 13+ 5 2.2548 4.09 | Q | V | | | 13+10 2.2833 4.15 | Q | V | | | 13+15 2.3123 4.20 | Q | V | | | 13+20 2.3416 4.26 | Q | V | | | 13+25 2.3714 4.32 | Q | V | | | 13+30 2.4016 4.39 | Q | V | | | 13+35 2.4323 4.45 | Q | V | | | 13+40 2.4634 4.53 | Q | V | | | 13+45 2.4951 4.60 | Q | V | | | 13+50 2.5273 4.68 | Q | V | | | 13+55 2.5601 4.76 | Q | V | | | 14+ 0 2.5935 4.85 | Q | V | | | 14+ 5 2.6275 4.94 | Q | V | | | 14+10 2.6622 5.04 | Q | V | | | 14+15 2.6977 5.15 | Q | V | | | 14+20 2.7339 5.26 | Q | V | | | 14+25 2.7710 5.38 | Q | V | | | 14+30 2.8089 5.51 | Q | V | | | 14+35 2.8477 5.64 | Q | V | | | 14+40 2.8877 5.79 | Q | V | | | 14+45 2.9286 5.95 | Q | V | | | 14+50 2.9708 6.13 | Q | V | | | 14+55 3.0143 6.32 | Q | V | | | 15+ 0 3.0593 6.53 | Q | V | | | 15+ 5 3.1059 6.76 | Q | V| | | 15+10 3.1543 7.03 | Q | V| | | 15+15 3.2048 7.32 | Q | V| | | 15+20 3.2576 7.67 | Q | V| | | 15+25 3.3118 7.87 | Q | V | | 15+30 3.3630 7.43 | Q | V | | 15+35 3.4132 7.30 | Q | V | | 15+40 3.4674 7.87 | Q | |V | | 15+45 3.5272 8.69 | Q | |V | | 15+50 3.5959 9.98 | Q | | V | | 15+55 3.6778 11.88 | Q | | V | | 16+ 0 3.7884 16.05 | Q | V | | 16+ 5 3.9796 27.77 | | Q | V | | 16+10 4.3441 52.92 | | | V | Q | 16+15 4.6171 39.64 | | | Q V | | 16+20 4.7334 16.89 | |Q | V| | 16+25 4.8043 10.29 | Q | | V| | 16+30 4.8615 8.31 | Q | | V| | 16+35 4.9159 7.90 | Q | | V | 16+40 4.9661 7.29 | Q | | V | 16+45 5.0126 6.75 | Q | | V | 16+50 5.0560 6.31 | Q | | |V | 16+55 5.0969 5.94 | Q | | |V | 17+ 0 5.1357 5.63 | Q | | |V | 17+ 5 5.1727 5.37 | Q | | |V | 17+10 5.2080 5.13 | Q | | |V | 17+15 5.2420 4.93 | Q | | | V | 17+20 5.2747 4.75 | Q | | | V | 17+25 5.3063 4.59 | Q | | | V | 17+30 5.3369 4.45 | Q | | | V | 17+35 5.3666 4.31 | Q | | | V | 17+40 5.3955 4.19 | Q | | | V | 17+45 5.4236 4.08 | Q | | | V | 17+50 5.4511 3.98 | Q | | | V | 17+55 5.4778 3.89 | Q | | | V | 18+ 0 5.5040 3.80 | Q | | | V | 18+ 5 5.5292 3.67 | Q | | | V | 18+10 5.5523 3.34 | Q | | | V | 18+15 5.5735 3.09 | Q | | | V | 18+20 5.5941 2.98 |Q | | | V | 18+25 5.6142 2.91 |Q | | | V | 18+30 5.6338 2.85 |Q | | | V | 18+35 5.6531 2.80 |Q | | | V | 18+40 5.6720 2.74 |Q | | | V | 18+45 5.6905 2.69 |Q | | | V | 18+50 5.7087 2.65 |Q | | | V | 18+55 5.7267 2.60 |Q | | | V | 19+ 0 5.7443 2.56 |Q | | | V | 19+ 5 5.7616 2.52 |Q | | | V | 19+10 5.7786 2.48 |Q | | | V | 19+15 5.7954 2.44 |Q | | | V | 19+20 5.8120 2.40 |Q | | | V | 19+25 5.8283 2.37 |Q | | | V | 19+30 5.8443 2.33 |Q | | | V | 19+35 5.8602 2.30 |Q | | | V | 19+40 5.8758 2.27 |Q | | | V | 19+45 5.8912 2.24 |Q | | | V | 19+50 5.9064 2.21 |Q | | | V | 19+55 5.9215 2.18 |Q | | | V | 20+ 0 5.9363 2.16 |Q | | | V | 20+ 5 5.9510 2.13 |Q | | | V | 20+10 5.9655 2.10 |Q | | | V | 20+15 5.9798 2.08 |Q | | | V | 20+20 5.9940 2.06 |Q | | | V | 20+25 6.0080 2.03 |Q | | | V | 20+30 6.0218 2.01 |Q | | | V | 20+35 6.0355 1.99 |Q | | | V | 20+40 6.0491 1.97 |Q | | | V | 20+45 6.0625 1.95 |Q | | | V | 20+50 6.0758 1.93 |Q | | | V | 20+55 6.0890 1.91 |Q | | | V | 21+ 0 6.1020 1.89 |Q | | | V | 21+ 5 6.1149 1.87 |Q | | | V | 21+10 6.1277 1.86 |Q | | | V | 21+15 6.1404 1.84 |Q | | | V | 21+20 6.1529 1.82 |Q | | | V | 21+25 6.1654 1.81 |Q | | | V | 21+30 6.1777 1.79 |Q | | | V | 21+35 6.1899 1.77 |Q | | | V | 21+40 6.2020 1.76 |Q | | | V | 21+45 6.2140 1.74 |Q | | | V | 21+50 6.2259 1.73 |Q | | | V | 21+55 6.2378 1.72 |Q | | | V | 22+ 0 6.2495 1.70 |Q | | | V | 22+ 5 6.2611 1.69 |Q | | | V | 22+10 6.2727 1.68 |Q | | | V | 22+15 6.2841 1.66 |Q | | | V | 22+20 6.2955 1.65 |Q | | | V | 22+25 6.3067 1.64 |Q | | | V | 22+30 6.3179 1.63 |Q | | | V | 22+35 6.3290 1.61 |Q | | | V | 22+40 6.3401 1.60 |Q | | | V | 22+45 6.3510 1.59 |Q | | | V | 22+50 6.3619 1.58 |Q | | | V| 22+55 6.3727 1.57 |Q | | | V| 23+ 0 6.3834 1.56 |Q | | | V| 23+ 5 6.3941 1.55 |Q | | | V| 23+10 6.4047 1.54 |Q | | | V| 23+15 6.4152 1.53 |Q | | | V| 23+20 6.4256 1.52 |Q | | | V| 23+25 6.4360 1.51 |Q | | | V| 23+30 6.4463 1.50 Q | | | V| 23+35 6.4565 1.49 Q | | | V| 23+40 6.4667 1.48 Q | | | V| 23+45 6.4768 1.47 Q | | | V| 23+50 6.4869 1.46 Q | | | V| 23+55 6.4969 1.45 Q | | | V| 24+ 0 6.5068 1.44 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 10-YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 10 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 10 12.94 1 0.82 -------------------------------------------------------------------- Rainfall data for year 10 12.94 6 2.07 -------------------------------------------------------------------- Rainfall data for year 10 12.94 24 3.81 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 12.94 1.000 0.978 0.090 0.088 Area-averaged adjusted loss rate Fm (In/Hr) = 0.088 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 1.16 0.090 32.0 32.0 19.05 0.000 11.78 0.910 98.0 98.0 0.20 0.938 Area-averaged catchment yield fraction, Y = 0.854 Area-averaged low loss fraction, Yb = 0.146 User entry of time of concentration = 0.136 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 12.94(Ac.) Catchment Lag time = 0.109 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 76.4246 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.088(In/Hr) Average low loss rate fraction (Yb) = 0.146 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.305(In) Computed peak 30-minute rainfall = 0.624(In) Specified peak 1-hour rainfall = 0.823(In) Computed peak 3-hour rainfall = 1.449(In) Specified peak 6-hour rainfall = 2.070(In) Specified peak 24-hour rainfall = 3.810(In) Rainfall depth area reduction factors: Using a total area of 12.94(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.304(In) 30-minute factor = 0.999 Adjusted rainfall = 0.623(In) 1-hour factor = 0.999 Adjusted rainfall = 0.823(In) 3-hour factor = 1.000 Adjusted rainfall = 1.449(In) 6-hour factor = 1.000 Adjusted rainfall = 2.070(In) 24-hour factor = 1.000 Adjusted rainfall = 3.810(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 156.49 (CFS)) 1 10.371 16.230 2 60.229 78.024 3 92.628 50.703 4 98.588 9.326 5 100.000 2.210 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3044 0.3044 2 0.4017 0.0973 3 0.4724 0.0707 4 0.5300 0.0576 5 0.5795 0.0495 6 0.6233 0.0438 7 0.6630 0.0396 8 0.6994 0.0364 9 0.7331 0.0337 10 0.7647 0.0316 11 0.7944 0.0297 12 0.8225 0.0281 13 0.8571 0.0346 14 0.8905 0.0334 15 0.9227 0.0322 16 0.9539 0.0312 17 0.9842 0.0303 18 1.0136 0.0294 19 1.0422 0.0286 20 1.0702 0.0279 21 1.0974 0.0272 22 1.1240 0.0266 23 1.1501 0.0260 24 1.1756 0.0255 25 1.2005 0.0250 26 1.2251 0.0245 27 1.2491 0.0241 28 1.2727 0.0236 29 1.2960 0.0232 30 1.3188 0.0228 31 1.3413 0.0225 32 1.3634 0.0221 33 1.3852 0.0218 34 1.4066 0.0215 35 1.4278 0.0212 36 1.4487 0.0209 37 1.4693 0.0206 38 1.4896 0.0203 39 1.5096 0.0201 40 1.5294 0.0198 41 1.5490 0.0196 42 1.5683 0.0193 43 1.5875 0.0191 44 1.6064 0.0189 45 1.6251 0.0187 46 1.6435 0.0185 47 1.6618 0.0183 48 1.6800 0.0181 49 1.6979 0.0179 50 1.7156 0.0178 51 1.7332 0.0176 52 1.7506 0.0174 53 1.7679 0.0173 54 1.7850 0.0171 55 1.8019 0.0169 56 1.8187 0.0168 57 1.8354 0.0166 58 1.8519 0.0165 59 1.8682 0.0164 60 1.8845 0.0162 61 1.9006 0.0161 62 1.9165 0.0160 63 1.9324 0.0159 64 1.9481 0.0157 65 1.9637 0.0156 66 1.9792 0.0155 67 1.9946 0.0154 68 2.0099 0.0153 69 2.0251 0.0152 70 2.0401 0.0151 71 2.0551 0.0150 72 2.0699 0.0149 73 2.0825 0.0126 74 2.0950 0.0125 75 2.1074 0.0124 76 2.1198 0.0123 77 2.1320 0.0122 78 2.1441 0.0121 79 2.1562 0.0121 80 2.1682 0.0120 81 2.1800 0.0119 82 2.1918 0.0118 83 2.2036 0.0117 84 2.2152 0.0116 85 2.2268 0.0116 86 2.2383 0.0115 87 2.2497 0.0114 88 2.2610 0.0113 89 2.2723 0.0113 90 2.2835 0.0112 91 2.2946 0.0111 92 2.3057 0.0111 93 2.3167 0.0110 94 2.3276 0.0109 95 2.3385 0.0109 96 2.3493 0.0108 97 2.3600 0.0107 98 2.3707 0.0107 99 2.3813 0.0106 100 2.3919 0.0106 101 2.4024 0.0105 102 2.4128 0.0104 103 2.4232 0.0104 104 2.4335 0.0103 105 2.4438 0.0103 106 2.4540 0.0102 107 2.4642 0.0102 108 2.4743 0.0101 109 2.4843 0.0101 110 2.4943 0.0100 111 2.5043 0.0100 112 2.5142 0.0099 113 2.5241 0.0099 114 2.5339 0.0098 115 2.5436 0.0098 116 2.5533 0.0097 117 2.5630 0.0097 118 2.5726 0.0096 119 2.5822 0.0096 120 2.5917 0.0095 121 2.6012 0.0095 122 2.6106 0.0094 123 2.6200 0.0094 124 2.6294 0.0094 125 2.6387 0.0093 126 2.6480 0.0093 127 2.6572 0.0092 128 2.6664 0.0092 129 2.6755 0.0091 130 2.6846 0.0091 131 2.6937 0.0091 132 2.7027 0.0090 133 2.7117 0.0090 134 2.7207 0.0090 135 2.7296 0.0089 136 2.7385 0.0089 137 2.7473 0.0088 138 2.7561 0.0088 139 2.7649 0.0088 140 2.7736 0.0087 141 2.7823 0.0087 142 2.7910 0.0087 143 2.7996 0.0086 144 2.8082 0.0086 145 2.8168 0.0086 146 2.8253 0.0085 147 2.8338 0.0085 148 2.8423 0.0085 149 2.8508 0.0084 150 2.8592 0.0084 151 2.8675 0.0084 152 2.8759 0.0083 153 2.8842 0.0083 154 2.8925 0.0083 155 2.9007 0.0083 156 2.9089 0.0082 157 2.9171 0.0082 158 2.9253 0.0082 159 2.9334 0.0081 160 2.9415 0.0081 161 2.9496 0.0081 162 2.9577 0.0080 163 2.9657 0.0080 164 2.9737 0.0080 165 2.9816 0.0080 166 2.9896 0.0079 167 2.9975 0.0079 168 3.0054 0.0079 169 3.0132 0.0079 170 3.0211 0.0078 171 3.0289 0.0078 172 3.0367 0.0078 173 3.0444 0.0078 174 3.0521 0.0077 175 3.0599 0.0077 176 3.0675 0.0077 177 3.0752 0.0077 178 3.0828 0.0076 179 3.0904 0.0076 180 3.0980 0.0076 181 3.1056 0.0076 182 3.1131 0.0075 183 3.1206 0.0075 184 3.1281 0.0075 185 3.1356 0.0075 186 3.1431 0.0074 187 3.1505 0.0074 188 3.1579 0.0074 189 3.1653 0.0074 190 3.1726 0.0074 191 3.1800 0.0073 192 3.1873 0.0073 193 3.1946 0.0073 194 3.2019 0.0073 195 3.2091 0.0073 196 3.2163 0.0072 197 3.2235 0.0072 198 3.2307 0.0072 199 3.2379 0.0072 200 3.2451 0.0072 201 3.2522 0.0071 202 3.2593 0.0071 203 3.2664 0.0071 204 3.2735 0.0071 205 3.2805 0.0071 206 3.2876 0.0070 207 3.2946 0.0070 208 3.3016 0.0070 209 3.3085 0.0070 210 3.3155 0.0070 211 3.3224 0.0069 212 3.3294 0.0069 213 3.3363 0.0069 214 3.3431 0.0069 215 3.3500 0.0069 216 3.3569 0.0068 217 3.3637 0.0068 218 3.3705 0.0068 219 3.3773 0.0068 220 3.3841 0.0068 221 3.3908 0.0068 222 3.3976 0.0067 223 3.4043 0.0067 224 3.4110 0.0067 225 3.4177 0.0067 226 3.4244 0.0067 227 3.4310 0.0067 228 3.4377 0.0066 229 3.4443 0.0066 230 3.4509 0.0066 231 3.4575 0.0066 232 3.4641 0.0066 233 3.4707 0.0066 234 3.4772 0.0065 235 3.4837 0.0065 236 3.4903 0.0065 237 3.4968 0.0065 238 3.5032 0.0065 239 3.5097 0.0065 240 3.5162 0.0065 241 3.5226 0.0064 242 3.5290 0.0064 243 3.5355 0.0064 244 3.5418 0.0064 245 3.5482 0.0064 246 3.5546 0.0064 247 3.5609 0.0064 248 3.5673 0.0063 249 3.5736 0.0063 250 3.5799 0.0063 251 3.5862 0.0063 252 3.5925 0.0063 253 3.5988 0.0063 254 3.6050 0.0063 255 3.6113 0.0062 256 3.6175 0.0062 257 3.6237 0.0062 258 3.6299 0.0062 259 3.6361 0.0062 260 3.6422 0.0062 261 3.6484 0.0062 262 3.6545 0.0061 263 3.6607 0.0061 264 3.6668 0.0061 265 3.6729 0.0061 266 3.6790 0.0061 267 3.6851 0.0061 268 3.6911 0.0061 269 3.6972 0.0061 270 3.7032 0.0060 271 3.7093 0.0060 272 3.7153 0.0060 273 3.7213 0.0060 274 3.7273 0.0060 275 3.7333 0.0060 276 3.7392 0.0060 277 3.7452 0.0060 278 3.7511 0.0059 279 3.7571 0.0059 280 3.7630 0.0059 281 3.7689 0.0059 282 3.7748 0.0059 283 3.7807 0.0059 284 3.7866 0.0059 285 3.7924 0.0059 286 3.7983 0.0059 287 3.8041 0.0058 288 3.8099 0.0058 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0058 0.0009 0.0050 2 0.0058 0.0009 0.0050 3 0.0059 0.0009 0.0050 4 0.0059 0.0009 0.0050 5 0.0059 0.0009 0.0050 6 0.0059 0.0009 0.0050 7 0.0059 0.0009 0.0051 8 0.0059 0.0009 0.0051 9 0.0060 0.0009 0.0051 10 0.0060 0.0009 0.0051 11 0.0060 0.0009 0.0051 12 0.0060 0.0009 0.0051 13 0.0060 0.0009 0.0052 14 0.0061 0.0009 0.0052 15 0.0061 0.0009 0.0052 16 0.0061 0.0009 0.0052 17 0.0061 0.0009 0.0052 18 0.0061 0.0009 0.0052 19 0.0062 0.0009 0.0053 20 0.0062 0.0009 0.0053 21 0.0062 0.0009 0.0053 22 0.0062 0.0009 0.0053 23 0.0062 0.0009 0.0053 24 0.0063 0.0009 0.0053 25 0.0063 0.0009 0.0054 26 0.0063 0.0009 0.0054 27 0.0063 0.0009 0.0054 28 0.0063 0.0009 0.0054 29 0.0064 0.0009 0.0054 30 0.0064 0.0009 0.0054 31 0.0064 0.0009 0.0055 32 0.0064 0.0009 0.0055 33 0.0065 0.0009 0.0055 34 0.0065 0.0009 0.0055 35 0.0065 0.0009 0.0056 36 0.0065 0.0010 0.0056 37 0.0065 0.0010 0.0056 38 0.0066 0.0010 0.0056 39 0.0066 0.0010 0.0056 40 0.0066 0.0010 0.0056 41 0.0066 0.0010 0.0057 42 0.0067 0.0010 0.0057 43 0.0067 0.0010 0.0057 44 0.0067 0.0010 0.0057 45 0.0067 0.0010 0.0058 46 0.0068 0.0010 0.0058 47 0.0068 0.0010 0.0058 48 0.0068 0.0010 0.0058 49 0.0068 0.0010 0.0058 50 0.0069 0.0010 0.0059 51 0.0069 0.0010 0.0059 52 0.0069 0.0010 0.0059 53 0.0070 0.0010 0.0059 54 0.0070 0.0010 0.0060 55 0.0070 0.0010 0.0060 56 0.0070 0.0010 0.0060 57 0.0071 0.0010 0.0060 58 0.0071 0.0010 0.0061 59 0.0071 0.0010 0.0061 60 0.0072 0.0010 0.0061 61 0.0072 0.0010 0.0061 62 0.0072 0.0011 0.0062 63 0.0073 0.0011 0.0062 64 0.0073 0.0011 0.0062 65 0.0073 0.0011 0.0062 66 0.0073 0.0011 0.0063 67 0.0074 0.0011 0.0063 68 0.0074 0.0011 0.0063 69 0.0074 0.0011 0.0064 70 0.0075 0.0011 0.0064 71 0.0075 0.0011 0.0064 72 0.0075 0.0011 0.0064 73 0.0076 0.0011 0.0065 74 0.0076 0.0011 0.0065 75 0.0077 0.0011 0.0065 76 0.0077 0.0011 0.0066 77 0.0077 0.0011 0.0066 78 0.0078 0.0011 0.0066 79 0.0078 0.0011 0.0067 80 0.0078 0.0011 0.0067 81 0.0079 0.0012 0.0067 82 0.0079 0.0012 0.0068 83 0.0080 0.0012 0.0068 84 0.0080 0.0012 0.0068 85 0.0080 0.0012 0.0069 86 0.0081 0.0012 0.0069 87 0.0081 0.0012 0.0069 88 0.0082 0.0012 0.0070 89 0.0082 0.0012 0.0070 90 0.0083 0.0012 0.0070 91 0.0083 0.0012 0.0071 92 0.0083 0.0012 0.0071 93 0.0084 0.0012 0.0072 94 0.0084 0.0012 0.0072 95 0.0085 0.0012 0.0073 96 0.0085 0.0012 0.0073 97 0.0086 0.0013 0.0073 98 0.0086 0.0013 0.0074 99 0.0087 0.0013 0.0074 100 0.0087 0.0013 0.0075 101 0.0088 0.0013 0.0075 102 0.0088 0.0013 0.0076 103 0.0089 0.0013 0.0076 104 0.0090 0.0013 0.0076 105 0.0090 0.0013 0.0077 106 0.0091 0.0013 0.0077 107 0.0091 0.0013 0.0078 108 0.0092 0.0013 0.0078 109 0.0093 0.0014 0.0079 110 0.0093 0.0014 0.0080 111 0.0094 0.0014 0.0080 112 0.0094 0.0014 0.0081 113 0.0095 0.0014 0.0081 114 0.0096 0.0014 0.0082 115 0.0097 0.0014 0.0083 116 0.0097 0.0014 0.0083 117 0.0098 0.0014 0.0084 118 0.0099 0.0014 0.0084 119 0.0100 0.0015 0.0085 120 0.0100 0.0015 0.0085 121 0.0101 0.0015 0.0086 122 0.0102 0.0015 0.0087 123 0.0103 0.0015 0.0088 124 0.0103 0.0015 0.0088 125 0.0104 0.0015 0.0089 126 0.0105 0.0015 0.0090 127 0.0106 0.0015 0.0091 128 0.0107 0.0016 0.0091 129 0.0108 0.0016 0.0092 130 0.0109 0.0016 0.0093 131 0.0110 0.0016 0.0094 132 0.0111 0.0016 0.0094 133 0.0112 0.0016 0.0096 134 0.0113 0.0016 0.0096 135 0.0114 0.0017 0.0098 136 0.0115 0.0017 0.0098 137 0.0116 0.0017 0.0099 138 0.0117 0.0017 0.0100 139 0.0119 0.0017 0.0102 140 0.0120 0.0017 0.0102 141 0.0121 0.0018 0.0104 142 0.0122 0.0018 0.0104 143 0.0124 0.0018 0.0106 144 0.0125 0.0018 0.0107 145 0.0149 0.0022 0.0127 146 0.0150 0.0022 0.0128 147 0.0152 0.0022 0.0129 148 0.0153 0.0022 0.0130 149 0.0155 0.0023 0.0132 150 0.0156 0.0023 0.0133 151 0.0159 0.0023 0.0135 152 0.0160 0.0023 0.0136 153 0.0162 0.0024 0.0139 154 0.0164 0.0024 0.0140 155 0.0166 0.0024 0.0142 156 0.0168 0.0025 0.0143 157 0.0171 0.0025 0.0146 158 0.0173 0.0025 0.0147 159 0.0176 0.0026 0.0150 160 0.0178 0.0026 0.0152 161 0.0181 0.0026 0.0155 162 0.0183 0.0027 0.0156 163 0.0187 0.0027 0.0160 164 0.0189 0.0028 0.0161 165 0.0193 0.0028 0.0165 166 0.0196 0.0029 0.0167 167 0.0201 0.0029 0.0171 168 0.0203 0.0030 0.0173 169 0.0209 0.0030 0.0178 170 0.0212 0.0031 0.0181 171 0.0218 0.0032 0.0186 172 0.0221 0.0032 0.0189 173 0.0228 0.0033 0.0195 174 0.0232 0.0034 0.0198 175 0.0241 0.0035 0.0205 176 0.0245 0.0036 0.0209 177 0.0255 0.0037 0.0218 178 0.0260 0.0038 0.0222 179 0.0272 0.0040 0.0233 180 0.0279 0.0041 0.0238 181 0.0294 0.0043 0.0251 182 0.0303 0.0044 0.0258 183 0.0322 0.0047 0.0275 184 0.0334 0.0049 0.0285 185 0.0281 0.0041 0.0240 186 0.0297 0.0043 0.0254 187 0.0337 0.0049 0.0288 188 0.0364 0.0053 0.0311 189 0.0438 0.0064 0.0374 190 0.0495 0.0072 0.0423 191 0.0707 0.0073 0.0634 192 0.0973 0.0073 0.0899 193 0.3044 0.0073 0.2971 194 0.0576 0.0073 0.0503 195 0.0396 0.0058 0.0339 196 0.0316 0.0046 0.0269 197 0.0346 0.0051 0.0296 198 0.0312 0.0046 0.0266 199 0.0286 0.0042 0.0245 200 0.0266 0.0039 0.0227 201 0.0250 0.0036 0.0213 202 0.0236 0.0034 0.0202 203 0.0225 0.0033 0.0192 204 0.0215 0.0031 0.0183 205 0.0206 0.0030 0.0176 206 0.0198 0.0029 0.0169 207 0.0191 0.0028 0.0163 208 0.0185 0.0027 0.0158 209 0.0179 0.0026 0.0153 210 0.0174 0.0025 0.0149 211 0.0169 0.0025 0.0145 212 0.0165 0.0024 0.0141 213 0.0161 0.0024 0.0138 214 0.0157 0.0023 0.0134 215 0.0154 0.0022 0.0131 216 0.0151 0.0022 0.0129 217 0.0126 0.0018 0.0108 218 0.0123 0.0018 0.0105 219 0.0121 0.0018 0.0103 220 0.0118 0.0017 0.0101 221 0.0116 0.0017 0.0099 222 0.0113 0.0017 0.0097 223 0.0111 0.0016 0.0095 224 0.0109 0.0016 0.0093 225 0.0107 0.0016 0.0092 226 0.0106 0.0015 0.0090 227 0.0104 0.0015 0.0089 228 0.0102 0.0015 0.0087 229 0.0101 0.0015 0.0086 230 0.0099 0.0014 0.0085 231 0.0098 0.0014 0.0083 232 0.0096 0.0014 0.0082 233 0.0095 0.0014 0.0081 234 0.0094 0.0014 0.0080 235 0.0092 0.0013 0.0079 236 0.0091 0.0013 0.0078 237 0.0090 0.0013 0.0077 238 0.0089 0.0013 0.0076 239 0.0088 0.0013 0.0075 240 0.0087 0.0013 0.0074 241 0.0086 0.0013 0.0073 242 0.0085 0.0012 0.0072 243 0.0084 0.0012 0.0072 244 0.0083 0.0012 0.0071 245 0.0082 0.0012 0.0070 246 0.0081 0.0012 0.0069 247 0.0080 0.0012 0.0069 248 0.0079 0.0012 0.0068 249 0.0079 0.0011 0.0067 250 0.0078 0.0011 0.0066 251 0.0077 0.0011 0.0066 252 0.0076 0.0011 0.0065 253 0.0076 0.0011 0.0065 254 0.0075 0.0011 0.0064 255 0.0074 0.0011 0.0063 256 0.0074 0.0011 0.0063 257 0.0073 0.0011 0.0062 258 0.0072 0.0011 0.0062 259 0.0072 0.0010 0.0061 260 0.0071 0.0010 0.0061 261 0.0071 0.0010 0.0060 262 0.0070 0.0010 0.0060 263 0.0069 0.0010 0.0059 264 0.0069 0.0010 0.0059 265 0.0068 0.0010 0.0058 266 0.0068 0.0010 0.0058 267 0.0067 0.0010 0.0057 268 0.0067 0.0010 0.0057 269 0.0066 0.0010 0.0057 270 0.0066 0.0010 0.0056 271 0.0065 0.0010 0.0056 272 0.0065 0.0009 0.0055 273 0.0064 0.0009 0.0055 274 0.0064 0.0009 0.0055 275 0.0064 0.0009 0.0054 276 0.0063 0.0009 0.0054 277 0.0063 0.0009 0.0054 278 0.0062 0.0009 0.0053 279 0.0062 0.0009 0.0053 280 0.0061 0.0009 0.0052 281 0.0061 0.0009 0.0052 282 0.0061 0.0009 0.0052 283 0.0060 0.0009 0.0051 284 0.0060 0.0009 0.0051 285 0.0060 0.0009 0.0051 286 0.0059 0.0009 0.0051 287 0.0059 0.0009 0.0050 288 0.0059 0.0009 0.0050 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.51(In) Total effective rainfall = 3.30(In) Peak flow rate in flood hydrograph = 29.24(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 7.5 15.0 22.5 30.0 ----------------------------------------------------------------------- 0+ 5 0.0006 0.08 Q | | | | 0+10 0.0038 0.47 Q | | | | 0+15 0.0088 0.72 Q | | | | 0+20 0.0141 0.77 VQ | | | | 0+25 0.0195 0.78 VQ | | | | 0+30 0.0249 0.79 VQ | | | | 0+35 0.0303 0.79 VQ | | | | 0+40 0.0358 0.79 VQ | | | | 0+45 0.0413 0.79 VQ | | | | 0+50 0.0467 0.80 VQ | | | | 0+55 0.0522 0.80 VQ | | | | 1+ 0 0.0578 0.80 VQ | | | | 1+ 5 0.0633 0.80 VQ | | | | 1+10 0.0688 0.81 VQ | | | | 1+15 0.0744 0.81 VQ | | | | 1+20 0.0800 0.81 VQ | | | | 1+25 0.0856 0.81 VQ | | | | 1+30 0.0912 0.82 |Q | | | | 1+35 0.0969 0.82 |Q | | | | 1+40 0.1025 0.82 |Q | | | | 1+45 0.1082 0.82 |Q | | | | 1+50 0.1139 0.83 |Q | | | | 1+55 0.1196 0.83 |Q | | | | 2+ 0 0.1253 0.83 |Q | | | | 2+ 5 0.1311 0.84 |Q | | | | 2+10 0.1369 0.84 |Q | | | | 2+15 0.1427 0.84 |Q | | | | 2+20 0.1485 0.84 |Q | | | | 2+25 0.1543 0.85 |Q | | | | 2+30 0.1601 0.85 |Q | | | | 2+35 0.1660 0.85 |Q | | | | 2+40 0.1719 0.86 |Q | | | | 2+45 0.1778 0.86 |Q | | | | 2+50 0.1837 0.86 |QV | | | | 2+55 0.1897 0.86 |QV | | | | 3+ 0 0.1957 0.87 |QV | | | | 3+ 5 0.2017 0.87 |QV | | | | 3+10 0.2077 0.87 |QV | | | | 3+15 0.2137 0.88 |QV | | | | 3+20 0.2198 0.88 |QV | | | | 3+25 0.2259 0.88 |QV | | | | 3+30 0.2320 0.89 |QV | | | | 3+35 0.2381 0.89 |QV | | | | 3+40 0.2442 0.89 |QV | | | | 3+45 0.2504 0.90 |QV | | | | 3+50 0.2566 0.90 |QV | | | | 3+55 0.2628 0.90 |QV | | | | 4+ 0 0.2691 0.91 |Q V | | | | 4+ 5 0.2753 0.91 |Q V | | | | 4+10 0.2816 0.91 |Q V | | | | 4+15 0.2879 0.92 |Q V | | | | 4+20 0.2943 0.92 |Q V | | | | 4+25 0.3006 0.92 |Q V | | | | 4+30 0.3070 0.93 |Q V | | | | 4+35 0.3134 0.93 |Q V | | | | 4+40 0.3199 0.94 |Q V | | | | 4+45 0.3263 0.94 |Q V | | | | 4+50 0.3328 0.94 |Q V | | | | 4+55 0.3394 0.95 |Q V | | | | 5+ 0 0.3459 0.95 |Q V | | | | 5+ 5 0.3525 0.95 |Q V | | | | 5+10 0.3591 0.96 |Q V | | | | 5+15 0.3657 0.96 |Q V | | | | 5+20 0.3724 0.97 |Q V | | | | 5+25 0.3791 0.97 |Q V | | | | 5+30 0.3858 0.98 |Q V | | | | 5+35 0.3925 0.98 |Q V | | | | 5+40 0.3993 0.98 |Q V | | | | 5+45 0.4061 0.99 |Q V | | | | 5+50 0.4130 0.99 |Q V | | | | 5+55 0.4198 1.00 |Q V | | | | 6+ 0 0.4267 1.00 |Q V | | | | 6+ 5 0.4337 1.01 |Q V | | | | 6+10 0.4406 1.01 |Q V | | | | 6+15 0.4476 1.02 |Q V | | | | 6+20 0.4547 1.02 |Q V | | | | 6+25 0.4617 1.03 |Q V | | | | 6+30 0.4688 1.03 |Q V | | | | 6+35 0.4760 1.04 |Q V | | | | 6+40 0.4831 1.04 |Q V | | | | 6+45 0.4903 1.05 |Q V | | | | 6+50 0.4976 1.05 |Q V | | | | 6+55 0.5048 1.06 |Q V | | | | 7+ 0 0.5122 1.06 |Q V | | | | 7+ 5 0.5195 1.07 |Q V | | | | 7+10 0.5269 1.07 |Q V | | | | 7+15 0.5343 1.08 |Q V | | | | 7+20 0.5418 1.08 |Q V | | | | 7+25 0.5493 1.09 |Q V | | | | 7+30 0.5568 1.10 |Q V | | | | 7+35 0.5644 1.10 |Q V | | | | 7+40 0.5720 1.11 |Q V | | | | 7+45 0.5797 1.11 |Q V | | | | 7+50 0.5874 1.12 |Q V | | | | 7+55 0.5952 1.13 |Q V | | | | 8+ 0 0.6030 1.13 |Q V | | | | 8+ 5 0.6108 1.14 |Q V | | | | 8+10 0.6187 1.15 |Q V | | | | 8+15 0.6266 1.15 |Q V | | | | 8+20 0.6346 1.16 |Q V | | | | 8+25 0.6427 1.17 |Q V | | | | 8+30 0.6507 1.17 |Q V | | | | 8+35 0.6589 1.18 |Q V | | | | 8+40 0.6671 1.19 |Q V | | | | 8+45 0.6753 1.19 |Q V | | | | 8+50 0.6836 1.20 |Q V | | | | 8+55 0.6919 1.21 |Q V | | | | 9+ 0 0.7003 1.22 |Q V | | | | 9+ 5 0.7087 1.23 |Q V | | | | 9+10 0.7172 1.23 |Q V | | | | 9+15 0.7258 1.24 |Q V | | | | 9+20 0.7344 1.25 |Q V | | | | 9+25 0.7431 1.26 |Q V | | | | 9+30 0.7518 1.27 |Q V | | | | 9+35 0.7606 1.28 |Q V | | | | 9+40 0.7695 1.29 |Q V | | | | 9+45 0.7784 1.30 |Q V | | | | 9+50 0.7874 1.31 |Q V | | | | 9+55 0.7965 1.31 |Q V | | | | 10+ 0 0.8056 1.33 |Q V| | | | 10+ 5 0.8148 1.33 |Q V| | | | 10+10 0.8240 1.35 |Q V| | | | 10+15 0.8334 1.36 |Q V| | | | 10+20 0.8428 1.37 |Q V| | | | 10+25 0.8523 1.38 |Q V| | | | 10+30 0.8618 1.39 |Q V| | | | 10+35 0.8715 1.40 |Q V| | | | 10+40 0.8812 1.41 |Q V| | | | 10+45 0.8910 1.42 |Q V | | | 10+50 0.9009 1.44 |Q V | | | 10+55 0.9109 1.45 |Q V | | | 11+ 0 0.9210 1.46 |Q V | | | 11+ 5 0.9311 1.48 |Q V | | | 11+10 0.9414 1.49 |Q V | | | 11+15 0.9518 1.50 | Q V | | | 11+20 0.9622 1.52 | Q V | | | 11+25 0.9728 1.53 | Q V | | | 11+30 0.9834 1.55 | Q |V | | | 11+35 0.9942 1.56 | Q |V | | | 11+40 1.0051 1.58 | Q |V | | | 11+45 1.0161 1.60 | Q |V | | | 11+50 1.0272 1.61 | Q |V | | | 11+55 1.0384 1.63 | Q |V | | | 12+ 0 1.0498 1.65 | Q |V | | | 12+ 5 1.0615 1.70 | Q |V | | | 12+10 1.0743 1.86 | Q | V | | | 12+15 1.0879 1.97 | Q | V | | | 12+20 1.1017 2.01 | Q | V | | | 12+25 1.1157 2.04 | Q | V | | | 12+30 1.1299 2.06 | Q | V | | | 12+35 1.1442 2.08 | Q | V | | | 12+40 1.1587 2.11 | Q | V | | | 12+45 1.1734 2.13 | Q | V | | | 12+50 1.1883 2.16 | Q | V | | | 12+55 1.2033 2.18 | Q | V | | | 13+ 0 1.2185 2.21 | Q | V | | | 13+ 5 1.2339 2.24 | Q | V | | | 13+10 1.2495 2.27 | Q | V | | | 13+15 1.2654 2.30 | Q | V | | | 13+20 1.2814 2.33 | Q | V | | | 13+25 1.2977 2.36 | Q | V | | | 13+30 1.3143 2.40 | Q | V | | | 13+35 1.3311 2.44 | Q | V | | | 13+40 1.3481 2.48 | Q | V | | | 13+45 1.3654 2.52 | Q | V | | | 13+50 1.3831 2.56 | Q | V | | | 13+55 1.4010 2.60 | Q | V | | | 14+ 0 1.4193 2.65 | Q | V | | | 14+ 5 1.4379 2.70 | Q | V | | | 14+10 1.4569 2.76 | Q | V | | | 14+15 1.4763 2.82 | Q | V | | | 14+20 1.4962 2.88 | Q | V | | | 14+25 1.5164 2.94 | Q | V | | | 14+30 1.5372 3.01 | Q | V | | | 14+35 1.5585 3.09 | Q | V | | | 14+40 1.5803 3.17 | Q | V | | | 14+45 1.6027 3.26 | Q | V | | | 14+50 1.6258 3.36 | Q | V | | | 14+55 1.6497 3.46 | Q | V | | | 15+ 0 1.6743 3.58 | Q | V | | | 15+ 5 1.6998 3.70 | Q | V| | | 15+10 1.7264 3.85 | Q | V| | | 15+15 1.7540 4.01 | Q | V| | | 15+20 1.7830 4.21 | Q | V | | 15+25 1.8126 4.30 | Q | V | | 15+30 1.8405 4.04 | Q | V | | 15+35 1.8680 3.99 | Q | V | | 15+40 1.8977 4.33 | Q | |V | | 15+45 1.9307 4.78 | Q | |V | | 15+50 1.9686 5.51 | Q | | V | | 15+55 2.0139 6.58 | Q | | V | | 16+ 0 2.0757 8.97 | |Q | V | | 16+ 5 2.1826 15.53 | | Q V | | 16+10 2.3840 29.24 | | | V | Q | 16+15 2.5253 20.51 | | | QV | | 16+20 2.5845 8.60 | |Q | V| | 16+25 2.6218 5.42 | Q | | V| | 16+30 2.6531 4.53 | Q | | V| | 16+35 2.6827 4.30 | Q | | V | 16+40 2.7100 3.96 | Q | | V | 16+45 2.7353 3.67 | Q | | V | 16+50 2.7589 3.43 | Q | | |V | 16+55 2.7812 3.23 | Q | | |V | 17+ 0 2.8023 3.07 | Q | | |V | 17+ 5 2.8225 2.92 | Q | | |V | 17+10 2.8417 2.80 | Q | | |V | 17+15 2.8603 2.69 | Q | | | V | 17+20 2.8781 2.59 | Q | | | V | 17+25 2.8954 2.50 | Q | | | V | 17+30 2.9121 2.43 | Q | | | V | 17+35 2.9283 2.35 | Q | | | V | 17+40 2.9441 2.29 | Q | | | V | 17+45 2.9594 2.23 | Q | | | V | 17+50 2.9744 2.17 | Q | | | V | 17+55 2.9890 2.12 | Q | | | V | 18+ 0 3.0033 2.07 | Q | | | V | 18+ 5 3.0171 2.00 | Q | | | V | 18+10 3.0296 1.81 | Q | | | V | 18+15 3.0411 1.68 | Q | | | V | 18+20 3.0524 1.63 | Q | | | V | 18+25 3.0633 1.59 | Q | | | V | 18+30 3.0741 1.56 | Q | | | V | 18+35 3.0846 1.53 | Q | | | V | 18+40 3.0949 1.50 |Q | | | V | 18+45 3.1050 1.47 |Q | | | V | 18+50 3.1150 1.45 |Q | | | V | 18+55 3.1248 1.42 |Q | | | V | 19+ 0 3.1344 1.40 |Q | | | V | 19+ 5 3.1438 1.37 |Q | | | V | 19+10 3.1532 1.35 |Q | | | V | 19+15 3.1623 1.33 |Q | | | V | 19+20 3.1714 1.31 |Q | | | V | 19+25 3.1803 1.29 |Q | | | V | 19+30 3.1890 1.27 |Q | | | V | 19+35 3.1977 1.26 |Q | | | V | 19+40 3.2062 1.24 |Q | | | V | 19+45 3.2147 1.22 |Q | | | V | 19+50 3.2230 1.21 |Q | | | V | 19+55 3.2312 1.19 |Q | | | V | 20+ 0 3.2393 1.18 |Q | | | V | 20+ 5 3.2473 1.16 |Q | | | V | 20+10 3.2552 1.15 |Q | | | V | 20+15 3.2631 1.14 |Q | | | V | 20+20 3.2708 1.12 |Q | | | V | 20+25 3.2785 1.11 |Q | | | V | 20+30 3.2860 1.10 |Q | | | V | 20+35 3.2935 1.09 |Q | | | V | 20+40 3.3009 1.08 |Q | | | V | 20+45 3.3083 1.07 |Q | | | V | 20+50 3.3155 1.05 |Q | | | V | 20+55 3.3227 1.04 |Q | | | V | 21+ 0 3.3299 1.03 |Q | | | V | 21+ 5 3.3369 1.02 |Q | | | V | 21+10 3.3439 1.01 |Q | | | V | 21+15 3.3508 1.01 |Q | | | V | 21+20 3.3577 1.00 |Q | | | V | 21+25 3.3645 0.99 |Q | | | V | 21+30 3.3712 0.98 |Q | | | V | 21+35 3.3779 0.97 |Q | | | V | 21+40 3.3845 0.96 |Q | | | V | 21+45 3.3911 0.95 |Q | | | V | 21+50 3.3976 0.95 |Q | | | V | 21+55 3.4041 0.94 |Q | | | V | 22+ 0 3.4105 0.93 |Q | | | V | 22+ 5 3.4168 0.92 |Q | | | V | 22+10 3.4231 0.92 |Q | | | V | 22+15 3.4294 0.91 |Q | | | V | 22+20 3.4356 0.90 |Q | | | V | 22+25 3.4418 0.89 |Q | | | V | 22+30 3.4479 0.89 |Q | | | V | 22+35 3.4539 0.88 |Q | | | V | 22+40 3.4600 0.88 |Q | | | V | 22+45 3.4660 0.87 |Q | | | V | 22+50 3.4719 0.86 |Q | | | V| 22+55 3.4778 0.86 |Q | | | V| 23+ 0 3.4837 0.85 |Q | | | V| 23+ 5 3.4895 0.85 |Q | | | V| 23+10 3.4953 0.84 |Q | | | V| 23+15 3.5010 0.83 |Q | | | V| 23+20 3.5067 0.83 |Q | | | V| 23+25 3.5124 0.82 |Q | | | V| 23+30 3.5180 0.82 |Q | | | V| 23+35 3.5236 0.81 |Q | | | V| 23+40 3.5292 0.81 |Q | | | V| 23+45 3.5347 0.80 |Q | | | V| 23+50 3.5402 0.80 |Q | | | V| 23+55 3.5457 0.79 |Q | | | V| 24+ 0 3.5511 0.79 |Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.7 UNIT HYDROGRAPH ANALYSIS POST-DEVELOPMENT CONDITIONS – 25 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 25 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 25 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 25 24.47 1 1.02 -------------------------------------------------------------------- Rainfall data for year 25 24.47 6 2.49 -------------------------------------------------------------------- Rainfall data for year 25 24.47 24 4.57 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 24.47 1.000 0.978 0.120 0.117 Area-averaged adjusted loss rate Fm (In/Hr) = 0.117 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 2.94 0.120 32.0 32.0 21.25 0.001 21.53 0.880 98.0 98.0 0.20 0.948 Area-averaged catchment yield fraction, Y = 0.835 Area-averaged low loss fraction, Yb = 0.165 User entry of time of concentration = 0.142 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 24.47(Ac.) Catchment Lag time = 0.114 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 73.3482 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.117(In/Hr) Average low loss rate fraction (Yb) = 0.165 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.378(In) Computed peak 30-minute rainfall = 0.773(In) Specified peak 1-hour rainfall = 1.020(In) Computed peak 3-hour rainfall = 1.763(In) Specified peak 6-hour rainfall = 2.490(In) Specified peak 24-hour rainfall = 4.570(In) Rainfall depth area reduction factors: Using a total area of 24.47(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.377(In) 30-minute factor = 0.999 Adjusted rainfall = 0.772(In) 1-hour factor = 0.999 Adjusted rainfall = 1.019(In) 3-hour factor = 1.000 Adjusted rainfall = 1.763(In) 6-hour factor = 1.000 Adjusted rainfall = 2.490(In) 24-hour factor = 1.000 Adjusted rainfall = 4.570(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 295.93 (CFS)) 1 9.593 28.389 2 57.063 140.480 3 91.191 100.997 4 98.308 21.062 5 100.000 5.006 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3771 0.3771 2 0.4976 0.1205 3 0.5852 0.0876 4 0.6565 0.0714 5 0.7178 0.0613 6 0.7721 0.0543 7 0.8212 0.0491 8 0.8663 0.0451 9 0.9081 0.0418 10 0.9472 0.0391 11 0.9840 0.0368 12 1.0188 0.0348 13 1.0603 0.0415 14 1.1003 0.0399 15 1.1388 0.0385 16 1.1761 0.0373 17 1.2122 0.0361 18 1.2473 0.0351 19 1.2814 0.0341 20 1.3146 0.0332 21 1.3470 0.0324 22 1.3787 0.0316 23 1.4096 0.0309 24 1.4399 0.0303 25 1.4695 0.0296 26 1.4985 0.0290 27 1.5270 0.0285 28 1.5550 0.0280 29 1.5825 0.0275 30 1.6095 0.0270 31 1.6360 0.0266 32 1.6621 0.0261 33 1.6879 0.0257 34 1.7132 0.0253 35 1.7381 0.0250 36 1.7628 0.0246 37 1.7870 0.0242 38 1.8109 0.0239 39 1.8345 0.0236 40 1.8578 0.0233 41 1.8808 0.0230 42 1.9035 0.0227 43 1.9259 0.0224 44 1.9481 0.0222 45 1.9700 0.0219 46 1.9917 0.0217 47 2.0132 0.0215 48 2.0344 0.0212 49 2.0554 0.0210 50 2.0762 0.0208 51 2.0968 0.0206 52 2.1172 0.0204 53 2.1374 0.0202 54 2.1574 0.0200 55 2.1772 0.0198 56 2.1968 0.0196 57 2.2163 0.0195 58 2.2355 0.0193 59 2.2547 0.0191 60 2.2736 0.0190 61 2.2924 0.0188 62 2.3111 0.0186 63 2.3296 0.0185 64 2.3479 0.0183 65 2.3661 0.0182 66 2.3842 0.0181 67 2.4021 0.0179 68 2.4199 0.0178 69 2.4376 0.0177 70 2.4551 0.0175 71 2.4725 0.0174 72 2.4898 0.0173 73 2.5049 0.0151 74 2.5199 0.0150 75 2.5347 0.0149 76 2.5495 0.0147 77 2.5641 0.0146 78 2.5787 0.0145 79 2.5931 0.0144 80 2.6074 0.0143 81 2.6216 0.0142 82 2.6358 0.0141 83 2.6498 0.0140 84 2.6637 0.0139 85 2.6776 0.0138 86 2.6913 0.0138 87 2.7050 0.0137 88 2.7186 0.0136 89 2.7321 0.0135 90 2.7455 0.0134 91 2.7588 0.0133 92 2.7720 0.0132 93 2.7852 0.0132 94 2.7983 0.0131 95 2.8113 0.0130 96 2.8242 0.0129 97 2.8371 0.0128 98 2.8498 0.0128 99 2.8625 0.0127 100 2.8752 0.0126 101 2.8877 0.0126 102 2.9002 0.0125 103 2.9126 0.0124 104 2.9250 0.0124 105 2.9373 0.0123 106 2.9495 0.0122 107 2.9617 0.0122 108 2.9737 0.0121 109 2.9858 0.0120 110 2.9977 0.0120 111 3.0097 0.0119 112 3.0215 0.0118 113 3.0333 0.0118 114 3.0450 0.0117 115 3.0567 0.0117 116 3.0683 0.0116 117 3.0799 0.0116 118 3.0914 0.0115 119 3.1028 0.0114 120 3.1142 0.0114 121 3.1256 0.0113 122 3.1368 0.0113 123 3.1481 0.0112 124 3.1593 0.0112 125 3.1704 0.0111 126 3.1815 0.0111 127 3.1925 0.0110 128 3.2035 0.0110 129 3.2145 0.0109 130 3.2253 0.0109 131 3.2362 0.0108 132 3.2470 0.0108 133 3.2577 0.0108 134 3.2685 0.0107 135 3.2791 0.0107 136 3.2897 0.0106 137 3.3003 0.0106 138 3.3108 0.0105 139 3.3213 0.0105 140 3.3318 0.0104 141 3.3422 0.0104 142 3.3525 0.0104 143 3.3629 0.0103 144 3.3731 0.0103 145 3.3834 0.0102 146 3.3936 0.0102 147 3.4037 0.0102 148 3.4139 0.0101 149 3.4240 0.0101 150 3.4340 0.0100 151 3.4440 0.0100 152 3.4540 0.0100 153 3.4639 0.0099 154 3.4738 0.0099 155 3.4837 0.0099 156 3.4935 0.0098 157 3.5033 0.0098 158 3.5131 0.0098 159 3.5228 0.0097 160 3.5325 0.0097 161 3.5421 0.0097 162 3.5517 0.0096 163 3.5613 0.0096 164 3.5709 0.0096 165 3.5804 0.0095 166 3.5899 0.0095 167 3.5994 0.0095 168 3.6088 0.0094 169 3.6182 0.0094 170 3.6275 0.0094 171 3.6369 0.0093 172 3.6462 0.0093 173 3.6554 0.0093 174 3.6647 0.0092 175 3.6739 0.0092 176 3.6831 0.0092 177 3.6922 0.0092 178 3.7014 0.0091 179 3.7105 0.0091 180 3.7195 0.0091 181 3.7286 0.0090 182 3.7376 0.0090 183 3.7465 0.0090 184 3.7555 0.0090 185 3.7644 0.0089 186 3.7733 0.0089 187 3.7822 0.0089 188 3.7911 0.0088 189 3.7999 0.0088 190 3.8087 0.0088 191 3.8174 0.0088 192 3.8262 0.0087 193 3.8349 0.0087 194 3.8436 0.0087 195 3.8522 0.0087 196 3.8609 0.0086 197 3.8695 0.0086 198 3.8781 0.0086 199 3.8867 0.0086 200 3.8952 0.0085 201 3.9037 0.0085 202 3.9122 0.0085 203 3.9207 0.0085 204 3.9291 0.0084 205 3.9376 0.0084 206 3.9460 0.0084 207 3.9544 0.0084 208 3.9627 0.0084 209 3.9710 0.0083 210 3.9794 0.0083 211 3.9876 0.0083 212 3.9959 0.0083 213 4.0042 0.0082 214 4.0124 0.0082 215 4.0206 0.0082 216 4.0288 0.0082 217 4.0369 0.0082 218 4.0451 0.0081 219 4.0532 0.0081 220 4.0613 0.0081 221 4.0694 0.0081 222 4.0774 0.0081 223 4.0855 0.0080 224 4.0935 0.0080 225 4.1015 0.0080 226 4.1094 0.0080 227 4.1174 0.0080 228 4.1253 0.0079 229 4.1332 0.0079 230 4.1411 0.0079 231 4.1490 0.0079 232 4.1569 0.0079 233 4.1647 0.0078 234 4.1725 0.0078 235 4.1803 0.0078 236 4.1881 0.0078 237 4.1959 0.0078 238 4.2036 0.0077 239 4.2114 0.0077 240 4.2191 0.0077 241 4.2268 0.0077 242 4.2344 0.0077 243 4.2421 0.0077 244 4.2497 0.0076 245 4.2574 0.0076 246 4.2650 0.0076 247 4.2725 0.0076 248 4.2801 0.0076 249 4.2877 0.0076 250 4.2952 0.0075 251 4.3027 0.0075 252 4.3102 0.0075 253 4.3177 0.0075 254 4.3252 0.0075 255 4.3326 0.0075 256 4.3401 0.0074 257 4.3475 0.0074 258 4.3549 0.0074 259 4.3623 0.0074 260 4.3696 0.0074 261 4.3770 0.0074 262 4.3843 0.0073 263 4.3916 0.0073 264 4.3990 0.0073 265 4.4062 0.0073 266 4.4135 0.0073 267 4.4208 0.0073 268 4.4280 0.0072 269 4.4353 0.0072 270 4.4425 0.0072 271 4.4497 0.0072 272 4.4569 0.0072 273 4.4640 0.0072 274 4.4712 0.0072 275 4.4783 0.0071 276 4.4855 0.0071 277 4.4926 0.0071 278 4.4997 0.0071 279 4.5067 0.0071 280 4.5138 0.0071 281 4.5209 0.0071 282 4.5279 0.0070 283 4.5349 0.0070 284 4.5419 0.0070 285 4.5489 0.0070 286 4.5559 0.0070 287 4.5629 0.0070 288 4.5699 0.0070 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0070 0.0012 0.0058 2 0.0070 0.0012 0.0058 3 0.0070 0.0012 0.0058 4 0.0070 0.0012 0.0059 5 0.0070 0.0012 0.0059 6 0.0071 0.0012 0.0059 7 0.0071 0.0012 0.0059 8 0.0071 0.0012 0.0059 9 0.0071 0.0012 0.0059 10 0.0071 0.0012 0.0060 11 0.0072 0.0012 0.0060 12 0.0072 0.0012 0.0060 13 0.0072 0.0012 0.0060 14 0.0072 0.0012 0.0060 15 0.0073 0.0012 0.0061 16 0.0073 0.0012 0.0061 17 0.0073 0.0012 0.0061 18 0.0073 0.0012 0.0061 19 0.0074 0.0012 0.0061 20 0.0074 0.0012 0.0062 21 0.0074 0.0012 0.0062 22 0.0074 0.0012 0.0062 23 0.0075 0.0012 0.0062 24 0.0075 0.0012 0.0062 25 0.0075 0.0012 0.0063 26 0.0075 0.0012 0.0063 27 0.0076 0.0012 0.0063 28 0.0076 0.0013 0.0063 29 0.0076 0.0013 0.0063 30 0.0076 0.0013 0.0064 31 0.0077 0.0013 0.0064 32 0.0077 0.0013 0.0064 33 0.0077 0.0013 0.0064 34 0.0077 0.0013 0.0065 35 0.0078 0.0013 0.0065 36 0.0078 0.0013 0.0065 37 0.0078 0.0013 0.0065 38 0.0078 0.0013 0.0065 39 0.0079 0.0013 0.0066 40 0.0079 0.0013 0.0066 41 0.0079 0.0013 0.0066 42 0.0080 0.0013 0.0066 43 0.0080 0.0013 0.0067 44 0.0080 0.0013 0.0067 45 0.0081 0.0013 0.0067 46 0.0081 0.0013 0.0067 47 0.0081 0.0013 0.0068 48 0.0081 0.0013 0.0068 49 0.0082 0.0014 0.0068 50 0.0082 0.0014 0.0068 51 0.0082 0.0014 0.0069 52 0.0083 0.0014 0.0069 53 0.0083 0.0014 0.0069 54 0.0083 0.0014 0.0070 55 0.0084 0.0014 0.0070 56 0.0084 0.0014 0.0070 57 0.0084 0.0014 0.0071 58 0.0085 0.0014 0.0071 59 0.0085 0.0014 0.0071 60 0.0085 0.0014 0.0071 61 0.0086 0.0014 0.0072 62 0.0086 0.0014 0.0072 63 0.0087 0.0014 0.0072 64 0.0087 0.0014 0.0073 65 0.0087 0.0014 0.0073 66 0.0088 0.0014 0.0073 67 0.0088 0.0015 0.0074 68 0.0088 0.0015 0.0074 69 0.0089 0.0015 0.0074 70 0.0089 0.0015 0.0075 71 0.0090 0.0015 0.0075 72 0.0090 0.0015 0.0075 73 0.0091 0.0015 0.0076 74 0.0091 0.0015 0.0076 75 0.0092 0.0015 0.0076 76 0.0092 0.0015 0.0077 77 0.0092 0.0015 0.0077 78 0.0093 0.0015 0.0077 79 0.0093 0.0015 0.0078 80 0.0094 0.0015 0.0078 81 0.0094 0.0016 0.0079 82 0.0095 0.0016 0.0079 83 0.0095 0.0016 0.0079 84 0.0096 0.0016 0.0080 85 0.0096 0.0016 0.0080 86 0.0097 0.0016 0.0081 87 0.0097 0.0016 0.0081 88 0.0098 0.0016 0.0081 89 0.0098 0.0016 0.0082 90 0.0099 0.0016 0.0082 91 0.0099 0.0016 0.0083 92 0.0100 0.0016 0.0083 93 0.0100 0.0017 0.0084 94 0.0101 0.0017 0.0084 95 0.0102 0.0017 0.0085 96 0.0102 0.0017 0.0085 97 0.0103 0.0017 0.0086 98 0.0103 0.0017 0.0086 99 0.0104 0.0017 0.0087 100 0.0104 0.0017 0.0087 101 0.0105 0.0017 0.0088 102 0.0106 0.0017 0.0088 103 0.0107 0.0018 0.0089 104 0.0107 0.0018 0.0089 105 0.0108 0.0018 0.0090 106 0.0108 0.0018 0.0091 107 0.0109 0.0018 0.0091 108 0.0110 0.0018 0.0092 109 0.0111 0.0018 0.0093 110 0.0111 0.0018 0.0093 111 0.0112 0.0019 0.0094 112 0.0113 0.0019 0.0094 113 0.0114 0.0019 0.0095 114 0.0114 0.0019 0.0096 115 0.0116 0.0019 0.0096 116 0.0116 0.0019 0.0097 117 0.0117 0.0019 0.0098 118 0.0118 0.0019 0.0098 119 0.0119 0.0020 0.0099 120 0.0120 0.0020 0.0100 121 0.0121 0.0020 0.0101 122 0.0122 0.0020 0.0101 123 0.0123 0.0020 0.0103 124 0.0124 0.0020 0.0103 125 0.0125 0.0021 0.0104 126 0.0126 0.0021 0.0105 127 0.0127 0.0021 0.0106 128 0.0128 0.0021 0.0107 129 0.0129 0.0021 0.0108 130 0.0130 0.0021 0.0109 131 0.0132 0.0022 0.0110 132 0.0132 0.0022 0.0111 133 0.0134 0.0022 0.0112 134 0.0135 0.0022 0.0113 135 0.0137 0.0023 0.0114 136 0.0138 0.0023 0.0115 137 0.0139 0.0023 0.0116 138 0.0140 0.0023 0.0117 139 0.0142 0.0024 0.0119 140 0.0143 0.0024 0.0120 141 0.0145 0.0024 0.0121 142 0.0146 0.0024 0.0122 143 0.0149 0.0025 0.0124 144 0.0150 0.0025 0.0125 145 0.0173 0.0029 0.0144 146 0.0174 0.0029 0.0145 147 0.0177 0.0029 0.0147 148 0.0178 0.0029 0.0149 149 0.0181 0.0030 0.0151 150 0.0182 0.0030 0.0152 151 0.0185 0.0031 0.0154 152 0.0186 0.0031 0.0156 153 0.0190 0.0031 0.0158 154 0.0191 0.0032 0.0160 155 0.0195 0.0032 0.0162 156 0.0196 0.0032 0.0164 157 0.0200 0.0033 0.0167 158 0.0202 0.0033 0.0168 159 0.0206 0.0034 0.0172 160 0.0208 0.0034 0.0174 161 0.0212 0.0035 0.0177 162 0.0215 0.0035 0.0179 163 0.0219 0.0036 0.0183 164 0.0222 0.0037 0.0185 165 0.0227 0.0038 0.0190 166 0.0230 0.0038 0.0192 167 0.0236 0.0039 0.0197 168 0.0239 0.0040 0.0199 169 0.0246 0.0041 0.0205 170 0.0250 0.0041 0.0208 171 0.0257 0.0043 0.0215 172 0.0261 0.0043 0.0218 173 0.0270 0.0045 0.0225 174 0.0275 0.0045 0.0229 175 0.0285 0.0047 0.0238 176 0.0290 0.0048 0.0242 177 0.0303 0.0050 0.0253 178 0.0309 0.0051 0.0258 179 0.0324 0.0054 0.0270 180 0.0332 0.0055 0.0277 181 0.0351 0.0058 0.0293 182 0.0361 0.0060 0.0302 183 0.0385 0.0064 0.0322 184 0.0399 0.0066 0.0333 185 0.0348 0.0058 0.0291 186 0.0368 0.0061 0.0307 187 0.0418 0.0069 0.0349 188 0.0451 0.0074 0.0376 189 0.0543 0.0090 0.0453 190 0.0613 0.0098 0.0515 191 0.0876 0.0098 0.0778 192 0.1205 0.0098 0.1107 193 0.3771 0.0098 0.3673 194 0.0714 0.0098 0.0616 195 0.0491 0.0081 0.0410 196 0.0391 0.0065 0.0326 197 0.0415 0.0069 0.0347 198 0.0373 0.0062 0.0311 199 0.0341 0.0056 0.0285 200 0.0316 0.0052 0.0264 201 0.0296 0.0049 0.0247 202 0.0280 0.0046 0.0233 203 0.0266 0.0044 0.0222 204 0.0253 0.0042 0.0211 205 0.0242 0.0040 0.0202 206 0.0233 0.0038 0.0194 207 0.0224 0.0037 0.0187 208 0.0217 0.0036 0.0181 209 0.0210 0.0035 0.0175 210 0.0204 0.0034 0.0170 211 0.0198 0.0033 0.0165 212 0.0193 0.0032 0.0161 213 0.0188 0.0031 0.0157 214 0.0183 0.0030 0.0153 215 0.0179 0.0030 0.0150 216 0.0175 0.0029 0.0146 217 0.0151 0.0025 0.0126 218 0.0147 0.0024 0.0123 219 0.0144 0.0024 0.0120 220 0.0141 0.0023 0.0118 221 0.0138 0.0023 0.0116 222 0.0136 0.0022 0.0113 223 0.0133 0.0022 0.0111 224 0.0131 0.0022 0.0109 225 0.0128 0.0021 0.0107 226 0.0126 0.0021 0.0105 227 0.0124 0.0021 0.0104 228 0.0122 0.0020 0.0102 229 0.0120 0.0020 0.0100 230 0.0118 0.0020 0.0099 231 0.0117 0.0019 0.0097 232 0.0115 0.0019 0.0096 233 0.0113 0.0019 0.0095 234 0.0112 0.0018 0.0093 235 0.0110 0.0018 0.0092 236 0.0109 0.0018 0.0091 237 0.0108 0.0018 0.0090 238 0.0106 0.0018 0.0089 239 0.0105 0.0017 0.0088 240 0.0104 0.0017 0.0086 241 0.0102 0.0017 0.0085 242 0.0101 0.0017 0.0084 243 0.0100 0.0017 0.0084 244 0.0099 0.0016 0.0083 245 0.0098 0.0016 0.0082 246 0.0097 0.0016 0.0081 247 0.0096 0.0016 0.0080 248 0.0095 0.0016 0.0079 249 0.0094 0.0016 0.0078 250 0.0093 0.0015 0.0078 251 0.0092 0.0015 0.0077 252 0.0091 0.0015 0.0076 253 0.0090 0.0015 0.0075 254 0.0090 0.0015 0.0075 255 0.0089 0.0015 0.0074 256 0.0088 0.0015 0.0073 257 0.0087 0.0014 0.0073 258 0.0086 0.0014 0.0072 259 0.0086 0.0014 0.0072 260 0.0085 0.0014 0.0071 261 0.0084 0.0014 0.0070 262 0.0084 0.0014 0.0070 263 0.0083 0.0014 0.0069 264 0.0082 0.0014 0.0069 265 0.0082 0.0013 0.0068 266 0.0081 0.0013 0.0068 267 0.0080 0.0013 0.0067 268 0.0080 0.0013 0.0067 269 0.0079 0.0013 0.0066 270 0.0079 0.0013 0.0066 271 0.0078 0.0013 0.0065 272 0.0077 0.0013 0.0065 273 0.0077 0.0013 0.0064 274 0.0076 0.0013 0.0064 275 0.0076 0.0013 0.0063 276 0.0075 0.0012 0.0063 277 0.0075 0.0012 0.0062 278 0.0074 0.0012 0.0062 279 0.0074 0.0012 0.0062 280 0.0073 0.0012 0.0061 281 0.0073 0.0012 0.0061 282 0.0072 0.0012 0.0060 283 0.0072 0.0012 0.0060 284 0.0072 0.0012 0.0060 285 0.0071 0.0012 0.0059 286 0.0071 0.0012 0.0059 287 0.0070 0.0012 0.0059 288 0.0070 0.0012 0.0058 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.69(In) Total effective rainfall = 3.88(In) Peak flow rate in flood hydrograph = 66.42(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 17.5 35.0 52.5 70.0 ----------------------------------------------------------------------- 0+ 5 0.0011 0.16 Q | | | | 0+10 0.0079 0.98 Q | | | | 0+15 0.0187 1.57 Q | | | | 0+20 0.0304 1.70 Q | | | | 0+25 0.0423 1.73 Q | | | | 0+30 0.0543 1.74 Q | | | | 0+35 0.0663 1.74 Q | | | | 0+40 0.0783 1.75 Q | | | | 0+45 0.0903 1.75 VQ | | | | 0+50 0.1024 1.76 VQ | | | | 0+55 0.1146 1.76 VQ | | | | 1+ 0 0.1268 1.77 VQ | | | | 1+ 5 0.1390 1.77 VQ | | | | 1+10 0.1512 1.78 VQ | | | | 1+15 0.1635 1.78 VQ | | | | 1+20 0.1758 1.79 VQ | | | | 1+25 0.1882 1.80 VQ | | | | 1+30 0.2006 1.80 |Q | | | | 1+35 0.2131 1.81 |Q | | | | 1+40 0.2255 1.81 |Q | | | | 1+45 0.2381 1.82 |Q | | | | 1+50 0.2506 1.82 |Q | | | | 1+55 0.2632 1.83 |Q | | | | 2+ 0 0.2759 1.84 |Q | | | | 2+ 5 0.2886 1.84 |Q | | | | 2+10 0.3013 1.85 |Q | | | | 2+15 0.3141 1.86 |Q | | | | 2+20 0.3269 1.86 |Q | | | | 2+25 0.3398 1.87 |Q | | | | 2+30 0.3527 1.87 |Q | | | | 2+35 0.3656 1.88 |Q | | | | 2+40 0.3786 1.89 |Q | | | | 2+45 0.3917 1.89 |Q | | | | 2+50 0.4048 1.90 |QV | | | | 2+55 0.4179 1.91 |QV | | | | 3+ 0 0.4311 1.91 |QV | | | | 3+ 5 0.4443 1.92 |QV | | | | 3+10 0.4576 1.93 |QV | | | | 3+15 0.4709 1.93 |QV | | | | 3+20 0.4843 1.94 |QV | | | | 3+25 0.4977 1.95 |QV | | | | 3+30 0.5112 1.96 |QV | | | | 3+35 0.5247 1.96 |QV | | | | 3+40 0.5383 1.97 |QV | | | | 3+45 0.5519 1.98 |QV | | | | 3+50 0.5656 1.99 |QV | | | | 3+55 0.5793 1.99 |QV | | | | 4+ 0 0.5931 2.00 |QV | | | | 4+ 5 0.6069 2.01 |Q V | | | | 4+10 0.6208 2.02 |Q V | | | | 4+15 0.6347 2.02 |Q V | | | | 4+20 0.6487 2.03 |Q V | | | | 4+25 0.6628 2.04 |Q V | | | | 4+30 0.6769 2.05 |Q V | | | | 4+35 0.6910 2.06 |Q V | | | | 4+40 0.7052 2.06 |Q V | | | | 4+45 0.7195 2.07 |Q V | | | | 4+50 0.7339 2.08 |Q V | | | | 4+55 0.7483 2.09 |Q V | | | | 5+ 0 0.7627 2.10 |Q V | | | | 5+ 5 0.7772 2.11 |Q V | | | | 5+10 0.7918 2.12 |Q V | | | | 5+15 0.8065 2.13 |Q V | | | | 5+20 0.8212 2.14 |Q V | | | | 5+25 0.8359 2.14 |Q V | | | | 5+30 0.8508 2.15 |Q V | | | | 5+35 0.8657 2.16 |Q V | | | | 5+40 0.8806 2.17 |Q V | | | | 5+45 0.8957 2.18 |Q V | | | | 5+50 0.9108 2.19 |Q V | | | | 5+55 0.9259 2.20 |Q V | | | | 6+ 0 0.9412 2.21 |Q V | | | | 6+ 5 0.9565 2.22 |Q V | | | | 6+10 0.9718 2.23 |Q V | | | | 6+15 0.9873 2.24 |Q V | | | | 6+20 1.0028 2.25 |Q V | | | | 6+25 1.0184 2.26 |Q V | | | | 6+30 1.0341 2.28 |Q V | | | | 6+35 1.0498 2.29 |Q V | | | | 6+40 1.0657 2.30 |Q V | | | | 6+45 1.0816 2.31 |Q V | | | | 6+50 1.0976 2.32 |Q V | | | | 6+55 1.1136 2.33 |Q V | | | | 7+ 0 1.1298 2.34 |Q V | | | | 7+ 5 1.1460 2.36 |Q V | | | | 7+10 1.1623 2.37 |Q V | | | | 7+15 1.1787 2.38 |Q V | | | | 7+20 1.1952 2.39 |Q V | | | | 7+25 1.2118 2.41 |Q V | | | | 7+30 1.2285 2.42 |Q V | | | | 7+35 1.2452 2.43 |Q V | | | | 7+40 1.2621 2.45 |Q V | | | | 7+45 1.2790 2.46 |Q V | | | | 7+50 1.2960 2.47 |Q V | | | | 7+55 1.3132 2.49 |Q V | | | | 8+ 0 1.3304 2.50 |Q V | | | | 8+ 5 1.3477 2.52 |Q V | | | | 8+10 1.3652 2.53 |Q V | | | | 8+15 1.3827 2.55 |Q V | | | | 8+20 1.4003 2.56 |Q V | | | | 8+25 1.4181 2.58 |Q V | | | | 8+30 1.4359 2.59 |Q V | | | | 8+35 1.4539 2.61 |Q V | | | | 8+40 1.4719 2.62 |Q V | | | | 8+45 1.4901 2.64 |Q V | | | | 8+50 1.5084 2.66 |Q V | | | | 8+55 1.5268 2.67 |Q V | | | | 9+ 0 1.5454 2.69 |Q V | | | | 9+ 5 1.5640 2.71 |Q V | | | | 9+10 1.5828 2.73 |Q V | | | | 9+15 1.6017 2.75 |Q V | | | | 9+20 1.6208 2.76 |Q V | | | | 9+25 1.6399 2.78 |Q V | | | | 9+30 1.6592 2.80 |Q V | | | | 9+35 1.6787 2.82 |Q V | | | | 9+40 1.6983 2.84 |Q V | | | | 9+45 1.7180 2.86 |Q V | | | | 9+50 1.7378 2.88 |Q V | | | | 9+55 1.7579 2.91 |Q V | | | | 10+ 0 1.7780 2.93 |Q V | | | | 10+ 5 1.7983 2.95 |Q V| | | | 10+10 1.8188 2.97 |Q V| | | | 10+15 1.8395 3.00 |Q V| | | | 10+20 1.8603 3.02 |Q V| | | | 10+25 1.8812 3.04 |Q V| | | | 10+30 1.9024 3.07 |Q V| | | | 10+35 1.9237 3.10 |Q V| | | | 10+40 1.9452 3.12 |Q V| | | | 10+45 1.9669 3.15 |Q V| | | | 10+50 1.9887 3.18 |Q V | | | 10+55 2.0108 3.20 |Q V | | | 11+ 0 2.0331 3.23 |Q V | | | 11+ 5 2.0555 3.26 |Q V | | | 11+10 2.0782 3.29 |Q V | | | 11+15 2.1011 3.32 |Q V | | | 11+20 2.1242 3.36 |Q V | | | 11+25 2.1476 3.39 |Q V | | | 11+30 2.1711 3.42 |Q V | | | 11+35 2.1949 3.46 |Q |V | | | 11+40 2.2190 3.49 |Q |V | | | 11+45 2.2433 3.53 | Q |V | | | 11+50 2.2679 3.57 | Q |V | | | 11+55 2.2927 3.61 | Q |V | | | 12+ 0 2.3178 3.65 | Q |V | | | 12+ 5 2.3435 3.74 | Q |V | | | 12+10 2.3713 4.02 | Q |V | | | 12+15 2.4005 4.24 | Q | V | | | 12+20 2.4303 4.33 | Q | V | | | 12+25 2.4605 4.38 | Q | V | | | 12+30 2.4910 4.43 | Q | V | | | 12+35 2.5219 4.48 | Q | V | | | 12+40 2.5531 4.54 | Q | V | | | 12+45 2.5847 4.59 | Q | V | | | 12+50 2.6167 4.65 | Q | V | | | 12+55 2.6492 4.71 | Q | V | | | 13+ 0 2.6820 4.77 | Q | V | | | 13+ 5 2.7153 4.83 | Q | V | | | 13+10 2.7490 4.90 | Q | V | | | 13+15 2.7832 4.97 | Q | V | | | 13+20 2.8180 5.04 | Q | V | | | 13+25 2.8532 5.11 | Q | V | | | 13+30 2.8890 5.20 | Q | V | | | 13+35 2.9253 5.28 | Q | V | | | 13+40 2.9623 5.37 | Q | V | | | 13+45 2.9998 5.45 | Q | V | | | 13+50 3.0381 5.55 | Q | V | | | 13+55 3.0770 5.65 | Q | V | | | 14+ 0 3.1167 5.76 | Q | V | | | 14+ 5 3.1571 5.87 | Q | V | | | 14+10 3.1985 6.00 | Q | V | | | 14+15 3.2407 6.13 | Q | V | | | 14+20 3.2839 6.27 | Q | V | | | 14+25 3.3280 6.41 | Q | V | | | 14+30 3.3733 6.58 | Q | V | | | 14+35 3.4197 6.74 | Q | V | | | 14+40 3.4674 6.93 | Q | V | | | 14+45 3.5165 7.12 | Q | V | | | 14+50 3.5671 7.34 | Q | V | | | 14+55 3.6192 7.57 | Q | V | | | 15+ 0 3.6733 7.85 | Q | V | | | 15+ 5 3.7292 8.13 | Q | V | | | 15+10 3.7876 8.47 | Q | V| | | 15+15 3.8483 8.83 | Q | V| | | 15+20 3.9122 9.27 | Q | V| | | 15+25 3.9779 9.54 | Q | V | | 15+30 4.0409 9.15 | Q | V | | 15+35 4.1036 9.11 | Q | V | | 15+40 4.1715 9.85 | Q | |V | | 15+45 4.2464 10.89 | Q | |V | | 15+50 4.3326 12.52 | Q | |V | | 15+55 4.4359 14.99 | Q | | V | | 16+ 0 4.5765 20.42 | |Q | V | | 16+ 5 4.8186 35.15 | | Q V | | 16+10 5.2761 66.42 | | | V | Q | 16+15 5.6179 49.63 | | | Q | | 16+20 5.7639 21.19 | | Q | V| | 16+25 5.8523 12.84 | Q | | V| | 16+30 5.9227 10.22 | Q | | V| | 16+35 5.9886 9.57 | Q | | V | 16+40 6.0491 8.78 | Q | | V | 16+45 6.1050 8.12 | Q | | V | 16+50 6.1571 7.56 | Q | | |V | 16+55 6.2060 7.10 | Q | | |V | 17+ 0 6.2523 6.72 | Q | | |V | 17+ 5 6.2964 6.40 | Q | | |V | 17+10 6.3385 6.11 | Q | | | V | 17+15 6.3788 5.86 | Q | | | V | 17+20 6.4177 5.64 | Q | | | V | 17+25 6.4552 5.44 | Q | | | V | 17+30 6.4914 5.27 | Q | | | V | 17+35 6.5266 5.11 | Q | | | V | 17+40 6.5607 4.96 | Q | | | V | 17+45 6.5940 4.82 | Q | | | V | 17+50 6.6263 4.70 | Q | | | V | 17+55 6.6579 4.58 | Q | | | V | 18+ 0 6.6887 4.48 | Q | | | V | 18+ 5 6.7185 4.33 | Q | | | V | 18+10 6.7460 3.99 | Q | | | V | 18+15 6.7716 3.73 | Q | | | V | 18+20 6.7965 3.61 | Q | | | V | 18+25 6.8208 3.52 | Q | | | V | 18+30 6.8445 3.45 |Q | | | V | 18+35 6.8678 3.38 |Q | | | V | 18+40 6.8907 3.32 |Q | | | V | 18+45 6.9131 3.26 |Q | | | V | 18+50 6.9351 3.20 |Q | | | V | 18+55 6.9568 3.14 |Q | | | V | 19+ 0 6.9781 3.09 |Q | | | V | 19+ 5 6.9990 3.04 |Q | | | V | 19+10 7.0196 2.99 |Q | | | V | 19+15 7.0399 2.95 |Q | | | V | 19+20 7.0599 2.90 |Q | | | V | 19+25 7.0796 2.86 |Q | | | V | 19+30 7.0990 2.82 |Q | | | V | 19+35 7.1182 2.78 |Q | | | V | 19+40 7.1371 2.74 |Q | | | V | 19+45 7.1557 2.71 |Q | | | V | 19+50 7.1741 2.67 |Q | | | V | 19+55 7.1923 2.64 |Q | | | V | 20+ 0 7.2102 2.60 |Q | | | V | 20+ 5 7.2279 2.57 |Q | | | V | 20+10 7.2455 2.54 |Q | | | V | 20+15 7.2628 2.51 |Q | | | V | 20+20 7.2799 2.49 |Q | | | V | 20+25 7.2968 2.46 |Q | | | V | 20+30 7.3135 2.43 |Q | | | V | 20+35 7.3301 2.40 |Q | | | V | 20+40 7.3465 2.38 |Q | | | V | 20+45 7.3627 2.35 |Q | | | V | 20+50 7.3788 2.33 |Q | | | V | 20+55 7.3947 2.31 |Q | | | V | 21+ 0 7.4104 2.29 |Q | | | V | 21+ 5 7.4260 2.26 |Q | | | V | 21+10 7.4414 2.24 |Q | | | V | 21+15 7.4567 2.22 |Q | | | V | 21+20 7.4719 2.20 |Q | | | V | 21+25 7.4869 2.18 |Q | | | V | 21+30 7.5018 2.16 |Q | | | V | 21+35 7.5165 2.14 |Q | | | V | 21+40 7.5312 2.12 |Q | | | V | 21+45 7.5457 2.11 |Q | | | V | 21+50 7.5601 2.09 |Q | | | V | 21+55 7.5743 2.07 |Q | | | V | 22+ 0 7.5885 2.05 |Q | | | V | 22+ 5 7.6025 2.04 |Q | | | V | 22+10 7.6165 2.02 |Q | | | V | 22+15 7.6303 2.01 |Q | | | V | 22+20 7.6440 1.99 |Q | | | V | 22+25 7.6576 1.98 |Q | | | V | 22+30 7.6711 1.96 |Q | | | V | 22+35 7.6845 1.95 |Q | | | V | 22+40 7.6978 1.93 |Q | | | V | 22+45 7.7111 1.92 |Q | | | V | 22+50 7.7242 1.91 |Q | | | V| 22+55 7.7372 1.89 |Q | | | V| 23+ 0 7.7502 1.88 |Q | | | V| 23+ 5 7.7630 1.87 |Q | | | V| 23+10 7.7758 1.85 |Q | | | V| 23+15 7.7885 1.84 |Q | | | V| 23+20 7.8011 1.83 |Q | | | V| 23+25 7.8136 1.82 |Q | | | V| 23+30 7.8260 1.81 |Q | | | V| 23+35 7.8384 1.79 |Q | | | V| 23+40 7.8507 1.78 |Q | | | V| 23+45 7.8629 1.77 |Q | | | V| 23+50 7.8750 1.76 |Q | | | V| 23+55 7.8871 1.75 |Q | | | V| 24+ 0 7.8991 1.74 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 25 YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 25 Antecedent Moisture Condition = 2 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 25 12.94 1 1.02 -------------------------------------------------------------------- Rainfall data for year 25 12.94 6 2.49 -------------------------------------------------------------------- Rainfall data for year 25 12.94 24 4.57 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 2) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 32.0 12.94 1.000 0.978 0.090 0.088 Area-averaged adjusted loss rate Fm (In/Hr) = 0.088 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC2) Yield Fr 1.16 0.090 32.0 32.0 21.25 0.001 11.78 0.910 98.0 98.0 0.20 0.948 Area-averaged catchment yield fraction, Y = 0.863 Area-averaged low loss fraction, Yb = 0.137 User entry of time of concentration = 0.135 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 12.94(Ac.) Catchment Lag time = 0.108 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 77.0084 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.088(In/Hr) Average low loss rate fraction (Yb) = 0.137 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.378(In) Computed peak 30-minute rainfall = 0.773(In) Specified peak 1-hour rainfall = 1.020(In) Computed peak 3-hour rainfall = 1.763(In) Specified peak 6-hour rainfall = 2.490(In) Specified peak 24-hour rainfall = 4.570(In) Rainfall depth area reduction factors: Using a total area of 12.94(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.377(In) 30-minute factor = 0.999 Adjusted rainfall = 0.773(In) 1-hour factor = 0.999 Adjusted rainfall = 1.019(In) 3-hour factor = 1.000 Adjusted rainfall = 1.763(In) 6-hour factor = 1.000 Adjusted rainfall = 2.490(In) 24-hour factor = 1.000 Adjusted rainfall = 4.570(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 156.49 (CFS)) 1 10.522 16.466 2 60.817 78.709 3 92.871 50.161 4 98.633 9.019 5 100.000 2.139 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.3773 0.3773 2 0.4978 0.1205 3 0.5855 0.0877 4 0.6569 0.0714 5 0.7182 0.0613 6 0.7725 0.0543 7 0.8217 0.0491 8 0.8668 0.0451 9 0.9086 0.0418 10 0.9477 0.0391 11 0.9845 0.0368 12 1.0194 0.0349 13 1.0609 0.0415 14 1.1008 0.0399 15 1.1393 0.0385 16 1.1766 0.0373 17 1.2127 0.0361 18 1.2478 0.0351 19 1.2819 0.0341 20 1.3151 0.0332 21 1.3474 0.0324 22 1.3791 0.0316 23 1.4100 0.0309 24 1.4402 0.0302 25 1.4698 0.0296 26 1.4988 0.0290 27 1.5273 0.0285 28 1.5553 0.0279 29 1.5827 0.0275 30 1.6097 0.0270 31 1.6362 0.0265 32 1.6623 0.0261 33 1.6880 0.0257 34 1.7133 0.0253 35 1.7383 0.0249 36 1.7629 0.0246 37 1.7871 0.0242 38 1.8110 0.0239 39 1.8346 0.0236 40 1.8579 0.0233 41 1.8809 0.0230 42 1.9036 0.0227 43 1.9260 0.0224 44 1.9482 0.0222 45 1.9701 0.0219 46 1.9918 0.0217 47 2.0133 0.0215 48 2.0345 0.0212 49 2.0555 0.0210 50 2.0763 0.0208 51 2.0969 0.0206 52 2.1173 0.0204 53 2.1375 0.0202 54 2.1575 0.0200 55 2.1773 0.0198 56 2.1969 0.0196 57 2.2164 0.0195 58 2.2356 0.0193 59 2.2548 0.0191 60 2.2737 0.0190 61 2.2925 0.0188 62 2.3112 0.0186 63 2.3297 0.0185 64 2.3480 0.0183 65 2.3662 0.0182 66 2.3843 0.0181 67 2.4022 0.0179 68 2.4200 0.0178 69 2.4377 0.0177 70 2.4552 0.0175 71 2.4726 0.0174 72 2.4899 0.0173 73 2.5050 0.0151 74 2.5200 0.0150 75 2.5348 0.0149 76 2.5496 0.0147 77 2.5642 0.0146 78 2.5787 0.0145 79 2.5932 0.0144 80 2.6075 0.0143 81 2.6217 0.0142 82 2.6359 0.0141 83 2.6499 0.0140 84 2.6638 0.0139 85 2.6777 0.0138 86 2.6914 0.0138 87 2.7051 0.0137 88 2.7187 0.0136 89 2.7322 0.0135 90 2.7456 0.0134 91 2.7589 0.0133 92 2.7721 0.0132 93 2.7853 0.0132 94 2.7984 0.0131 95 2.8114 0.0130 96 2.8243 0.0129 97 2.8371 0.0128 98 2.8499 0.0128 99 2.8626 0.0127 100 2.8753 0.0126 101 2.8878 0.0126 102 2.9003 0.0125 103 2.9127 0.0124 104 2.9251 0.0124 105 2.9374 0.0123 106 2.9496 0.0122 107 2.9617 0.0122 108 2.9738 0.0121 109 2.9859 0.0120 110 2.9978 0.0120 111 3.0097 0.0119 112 3.0216 0.0118 113 3.0334 0.0118 114 3.0451 0.0117 115 3.0568 0.0117 116 3.0684 0.0116 117 3.0800 0.0116 118 3.0915 0.0115 119 3.1029 0.0114 120 3.1143 0.0114 121 3.1256 0.0113 122 3.1369 0.0113 123 3.1482 0.0112 124 3.1594 0.0112 125 3.1705 0.0111 126 3.1816 0.0111 127 3.1926 0.0110 128 3.2036 0.0110 129 3.2145 0.0109 130 3.2254 0.0109 131 3.2363 0.0108 132 3.2471 0.0108 133 3.2578 0.0108 134 3.2685 0.0107 135 3.2792 0.0107 136 3.2898 0.0106 137 3.3004 0.0106 138 3.3109 0.0105 139 3.3214 0.0105 140 3.3319 0.0104 141 3.3423 0.0104 142 3.3526 0.0104 143 3.3629 0.0103 144 3.3732 0.0103 145 3.3835 0.0102 146 3.3937 0.0102 147 3.4038 0.0102 148 3.4140 0.0101 149 3.4240 0.0101 150 3.4341 0.0100 151 3.4441 0.0100 152 3.4541 0.0100 153 3.4640 0.0099 154 3.4739 0.0099 155 3.4838 0.0099 156 3.4936 0.0098 157 3.5034 0.0098 158 3.5131 0.0098 159 3.5229 0.0097 160 3.5326 0.0097 161 3.5422 0.0097 162 3.5518 0.0096 163 3.5614 0.0096 164 3.5710 0.0096 165 3.5805 0.0095 166 3.5900 0.0095 167 3.5994 0.0095 168 3.6089 0.0094 169 3.6183 0.0094 170 3.6276 0.0094 171 3.6370 0.0093 172 3.6463 0.0093 173 3.6555 0.0093 174 3.6648 0.0092 175 3.6740 0.0092 176 3.6832 0.0092 177 3.6923 0.0092 178 3.7014 0.0091 179 3.7105 0.0091 180 3.7196 0.0091 181 3.7286 0.0090 182 3.7376 0.0090 183 3.7466 0.0090 184 3.7556 0.0090 185 3.7645 0.0089 186 3.7734 0.0089 187 3.7823 0.0089 188 3.7911 0.0088 189 3.8000 0.0088 190 3.8087 0.0088 191 3.8175 0.0088 192 3.8263 0.0087 193 3.8350 0.0087 194 3.8437 0.0087 195 3.8523 0.0087 196 3.8610 0.0086 197 3.8696 0.0086 198 3.8782 0.0086 199 3.8867 0.0086 200 3.8953 0.0085 201 3.9038 0.0085 202 3.9123 0.0085 203 3.9208 0.0085 204 3.9292 0.0084 205 3.9377 0.0084 206 3.9461 0.0084 207 3.9544 0.0084 208 3.9628 0.0084 209 3.9711 0.0083 210 3.9794 0.0083 211 3.9877 0.0083 212 3.9960 0.0083 213 4.0042 0.0082 214 4.0125 0.0082 215 4.0207 0.0082 216 4.0288 0.0082 217 4.0370 0.0082 218 4.0451 0.0081 219 4.0533 0.0081 220 4.0614 0.0081 221 4.0694 0.0081 222 4.0775 0.0081 223 4.0855 0.0080 224 4.0935 0.0080 225 4.1015 0.0080 226 4.1095 0.0080 227 4.1175 0.0080 228 4.1254 0.0079 229 4.1333 0.0079 230 4.1412 0.0079 231 4.1491 0.0079 232 4.1570 0.0079 233 4.1648 0.0078 234 4.1726 0.0078 235 4.1804 0.0078 236 4.1882 0.0078 237 4.1960 0.0078 238 4.2037 0.0077 239 4.2114 0.0077 240 4.2191 0.0077 241 4.2268 0.0077 242 4.2345 0.0077 243 4.2422 0.0077 244 4.2498 0.0076 245 4.2574 0.0076 246 4.2650 0.0076 247 4.2726 0.0076 248 4.2802 0.0076 249 4.2877 0.0076 250 4.2953 0.0075 251 4.3028 0.0075 252 4.3103 0.0075 253 4.3178 0.0075 254 4.3252 0.0075 255 4.3327 0.0075 256 4.3401 0.0074 257 4.3475 0.0074 258 4.3549 0.0074 259 4.3623 0.0074 260 4.3697 0.0074 261 4.3771 0.0074 262 4.3844 0.0073 263 4.3917 0.0073 264 4.3990 0.0073 265 4.4063 0.0073 266 4.4136 0.0073 267 4.4209 0.0073 268 4.4281 0.0072 269 4.4353 0.0072 270 4.4425 0.0072 271 4.4497 0.0072 272 4.4569 0.0072 273 4.4641 0.0072 274 4.4713 0.0072 275 4.4784 0.0071 276 4.4855 0.0071 277 4.4926 0.0071 278 4.4997 0.0071 279 4.5068 0.0071 280 4.5139 0.0071 281 4.5209 0.0071 282 4.5280 0.0070 283 4.5350 0.0070 284 4.5420 0.0070 285 4.5490 0.0070 286 4.5560 0.0070 287 4.5630 0.0070 288 4.5699 0.0070 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0070 0.0010 0.0060 2 0.0070 0.0010 0.0060 3 0.0070 0.0010 0.0060 4 0.0070 0.0010 0.0061 5 0.0070 0.0010 0.0061 6 0.0071 0.0010 0.0061 7 0.0071 0.0010 0.0061 8 0.0071 0.0010 0.0061 9 0.0071 0.0010 0.0062 10 0.0071 0.0010 0.0062 11 0.0072 0.0010 0.0062 12 0.0072 0.0010 0.0062 13 0.0072 0.0010 0.0062 14 0.0072 0.0010 0.0062 15 0.0073 0.0010 0.0063 16 0.0073 0.0010 0.0063 17 0.0073 0.0010 0.0063 18 0.0073 0.0010 0.0063 19 0.0074 0.0010 0.0063 20 0.0074 0.0010 0.0064 21 0.0074 0.0010 0.0064 22 0.0074 0.0010 0.0064 23 0.0075 0.0010 0.0064 24 0.0075 0.0010 0.0064 25 0.0075 0.0010 0.0065 26 0.0075 0.0010 0.0065 27 0.0076 0.0010 0.0065 28 0.0076 0.0010 0.0065 29 0.0076 0.0010 0.0066 30 0.0076 0.0010 0.0066 31 0.0077 0.0010 0.0066 32 0.0077 0.0011 0.0066 33 0.0077 0.0011 0.0067 34 0.0077 0.0011 0.0067 35 0.0078 0.0011 0.0067 36 0.0078 0.0011 0.0067 37 0.0078 0.0011 0.0067 38 0.0078 0.0011 0.0068 39 0.0079 0.0011 0.0068 40 0.0079 0.0011 0.0068 41 0.0079 0.0011 0.0068 42 0.0080 0.0011 0.0069 43 0.0080 0.0011 0.0069 44 0.0080 0.0011 0.0069 45 0.0081 0.0011 0.0070 46 0.0081 0.0011 0.0070 47 0.0081 0.0011 0.0070 48 0.0081 0.0011 0.0070 49 0.0082 0.0011 0.0071 50 0.0082 0.0011 0.0071 51 0.0082 0.0011 0.0071 52 0.0083 0.0011 0.0071 53 0.0083 0.0011 0.0072 54 0.0083 0.0011 0.0072 55 0.0084 0.0011 0.0072 56 0.0084 0.0012 0.0073 57 0.0084 0.0012 0.0073 58 0.0085 0.0012 0.0073 59 0.0085 0.0012 0.0074 60 0.0085 0.0012 0.0074 61 0.0086 0.0012 0.0074 62 0.0086 0.0012 0.0074 63 0.0087 0.0012 0.0075 64 0.0087 0.0012 0.0075 65 0.0087 0.0012 0.0075 66 0.0088 0.0012 0.0076 67 0.0088 0.0012 0.0076 68 0.0088 0.0012 0.0076 69 0.0089 0.0012 0.0077 70 0.0089 0.0012 0.0077 71 0.0090 0.0012 0.0078 72 0.0090 0.0012 0.0078 73 0.0091 0.0012 0.0078 74 0.0091 0.0012 0.0078 75 0.0092 0.0013 0.0079 76 0.0092 0.0013 0.0079 77 0.0092 0.0013 0.0080 78 0.0093 0.0013 0.0080 79 0.0093 0.0013 0.0081 80 0.0094 0.0013 0.0081 81 0.0094 0.0013 0.0081 82 0.0095 0.0013 0.0082 83 0.0095 0.0013 0.0082 84 0.0096 0.0013 0.0082 85 0.0096 0.0013 0.0083 86 0.0097 0.0013 0.0083 87 0.0097 0.0013 0.0084 88 0.0098 0.0013 0.0084 89 0.0098 0.0013 0.0085 90 0.0099 0.0014 0.0085 91 0.0099 0.0014 0.0086 92 0.0100 0.0014 0.0086 93 0.0100 0.0014 0.0087 94 0.0101 0.0014 0.0087 95 0.0102 0.0014 0.0088 96 0.0102 0.0014 0.0088 97 0.0103 0.0014 0.0089 98 0.0103 0.0014 0.0089 99 0.0104 0.0014 0.0090 100 0.0104 0.0014 0.0090 101 0.0105 0.0014 0.0091 102 0.0106 0.0014 0.0091 103 0.0107 0.0015 0.0092 104 0.0107 0.0015 0.0092 105 0.0108 0.0015 0.0093 106 0.0108 0.0015 0.0094 107 0.0109 0.0015 0.0094 108 0.0110 0.0015 0.0095 109 0.0111 0.0015 0.0096 110 0.0111 0.0015 0.0096 111 0.0112 0.0015 0.0097 112 0.0113 0.0015 0.0097 113 0.0114 0.0016 0.0098 114 0.0114 0.0016 0.0099 115 0.0116 0.0016 0.0100 116 0.0116 0.0016 0.0100 117 0.0117 0.0016 0.0101 118 0.0118 0.0016 0.0102 119 0.0119 0.0016 0.0103 120 0.0120 0.0016 0.0103 121 0.0121 0.0017 0.0104 122 0.0122 0.0017 0.0105 123 0.0123 0.0017 0.0106 124 0.0124 0.0017 0.0107 125 0.0125 0.0017 0.0108 126 0.0126 0.0017 0.0108 127 0.0127 0.0017 0.0110 128 0.0128 0.0017 0.0110 129 0.0129 0.0018 0.0112 130 0.0130 0.0018 0.0112 131 0.0132 0.0018 0.0114 132 0.0132 0.0018 0.0114 133 0.0134 0.0018 0.0116 134 0.0135 0.0018 0.0116 135 0.0137 0.0019 0.0118 136 0.0138 0.0019 0.0119 137 0.0139 0.0019 0.0120 138 0.0140 0.0019 0.0121 139 0.0142 0.0019 0.0123 140 0.0143 0.0020 0.0124 141 0.0145 0.0020 0.0125 142 0.0146 0.0020 0.0126 143 0.0149 0.0020 0.0128 144 0.0150 0.0021 0.0129 145 0.0173 0.0024 0.0149 146 0.0174 0.0024 0.0150 147 0.0177 0.0024 0.0152 148 0.0178 0.0024 0.0154 149 0.0181 0.0025 0.0156 150 0.0182 0.0025 0.0157 151 0.0185 0.0025 0.0160 152 0.0186 0.0026 0.0161 153 0.0190 0.0026 0.0164 154 0.0191 0.0026 0.0165 155 0.0195 0.0027 0.0168 156 0.0196 0.0027 0.0169 157 0.0200 0.0027 0.0173 158 0.0202 0.0028 0.0174 159 0.0206 0.0028 0.0178 160 0.0208 0.0028 0.0179 161 0.0212 0.0029 0.0183 162 0.0215 0.0029 0.0185 163 0.0219 0.0030 0.0189 164 0.0222 0.0030 0.0191 165 0.0227 0.0031 0.0196 166 0.0230 0.0031 0.0198 167 0.0236 0.0032 0.0204 168 0.0239 0.0033 0.0206 169 0.0246 0.0034 0.0212 170 0.0249 0.0034 0.0215 171 0.0257 0.0035 0.0222 172 0.0261 0.0036 0.0225 173 0.0270 0.0037 0.0233 174 0.0275 0.0038 0.0237 175 0.0285 0.0039 0.0246 176 0.0290 0.0040 0.0251 177 0.0302 0.0041 0.0261 178 0.0309 0.0042 0.0267 179 0.0324 0.0044 0.0279 180 0.0332 0.0045 0.0287 181 0.0351 0.0048 0.0303 182 0.0361 0.0049 0.0312 183 0.0385 0.0053 0.0333 184 0.0399 0.0055 0.0345 185 0.0349 0.0048 0.0301 186 0.0368 0.0050 0.0318 187 0.0418 0.0057 0.0361 188 0.0451 0.0062 0.0389 189 0.0543 0.0073 0.0470 190 0.0613 0.0073 0.0540 191 0.0877 0.0073 0.0803 192 0.1205 0.0073 0.1132 193 0.3773 0.0073 0.3699 194 0.0714 0.0073 0.0641 195 0.0491 0.0067 0.0424 196 0.0391 0.0054 0.0338 197 0.0415 0.0057 0.0358 198 0.0373 0.0051 0.0322 199 0.0341 0.0047 0.0294 200 0.0316 0.0043 0.0273 201 0.0296 0.0041 0.0256 202 0.0279 0.0038 0.0241 203 0.0265 0.0036 0.0229 204 0.0253 0.0035 0.0218 205 0.0242 0.0033 0.0209 206 0.0233 0.0032 0.0201 207 0.0224 0.0031 0.0194 208 0.0217 0.0030 0.0187 209 0.0210 0.0029 0.0181 210 0.0204 0.0028 0.0176 211 0.0198 0.0027 0.0171 212 0.0193 0.0026 0.0166 213 0.0188 0.0026 0.0162 214 0.0183 0.0025 0.0158 215 0.0179 0.0025 0.0155 216 0.0175 0.0024 0.0151 217 0.0151 0.0021 0.0130 218 0.0147 0.0020 0.0127 219 0.0144 0.0020 0.0125 220 0.0141 0.0019 0.0122 221 0.0138 0.0019 0.0119 222 0.0136 0.0019 0.0117 223 0.0133 0.0018 0.0115 224 0.0131 0.0018 0.0113 225 0.0128 0.0018 0.0111 226 0.0126 0.0017 0.0109 227 0.0124 0.0017 0.0107 228 0.0122 0.0017 0.0105 229 0.0120 0.0016 0.0104 230 0.0118 0.0016 0.0102 231 0.0117 0.0016 0.0101 232 0.0115 0.0016 0.0099 233 0.0113 0.0016 0.0098 234 0.0112 0.0015 0.0097 235 0.0110 0.0015 0.0095 236 0.0109 0.0015 0.0094 237 0.0108 0.0015 0.0093 238 0.0106 0.0015 0.0092 239 0.0105 0.0014 0.0091 240 0.0104 0.0014 0.0089 241 0.0102 0.0014 0.0088 242 0.0101 0.0014 0.0087 243 0.0100 0.0014 0.0086 244 0.0099 0.0014 0.0085 245 0.0098 0.0013 0.0085 246 0.0097 0.0013 0.0084 247 0.0096 0.0013 0.0083 248 0.0095 0.0013 0.0082 249 0.0094 0.0013 0.0081 250 0.0093 0.0013 0.0080 251 0.0092 0.0013 0.0079 252 0.0091 0.0012 0.0079 253 0.0090 0.0012 0.0078 254 0.0090 0.0012 0.0077 255 0.0089 0.0012 0.0077 256 0.0088 0.0012 0.0076 257 0.0087 0.0012 0.0075 258 0.0086 0.0012 0.0075 259 0.0086 0.0012 0.0074 260 0.0085 0.0012 0.0073 261 0.0084 0.0012 0.0073 262 0.0084 0.0011 0.0072 263 0.0083 0.0011 0.0072 264 0.0082 0.0011 0.0071 265 0.0082 0.0011 0.0070 266 0.0081 0.0011 0.0070 267 0.0080 0.0011 0.0069 268 0.0080 0.0011 0.0069 269 0.0079 0.0011 0.0068 270 0.0079 0.0011 0.0068 271 0.0078 0.0011 0.0067 272 0.0077 0.0011 0.0067 273 0.0077 0.0011 0.0066 274 0.0076 0.0010 0.0066 275 0.0076 0.0010 0.0065 276 0.0075 0.0010 0.0065 277 0.0075 0.0010 0.0065 278 0.0074 0.0010 0.0064 279 0.0074 0.0010 0.0064 280 0.0073 0.0010 0.0063 281 0.0073 0.0010 0.0063 282 0.0072 0.0010 0.0063 283 0.0072 0.0010 0.0062 284 0.0072 0.0010 0.0062 285 0.0071 0.0010 0.0061 286 0.0071 0.0010 0.0061 287 0.0070 0.0010 0.0061 288 0.0070 0.0010 0.0060 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.56(In) Total effective rainfall = 4.01(In) Peak flow rate in flood hydrograph = 36.69(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 10.0 20.0 30.0 40.0 ----------------------------------------------------------------------- 0+ 5 0.0007 0.10 Q | | | | 0+10 0.0046 0.57 Q | | | | 0+15 0.0106 0.87 Q | | | | 0+20 0.0171 0.93 Q | | | | 0+25 0.0236 0.95 Q | | | | 0+30 0.0301 0.95 Q | | | | 0+35 0.0367 0.95 Q | | | | 0+40 0.0432 0.96 Q | | | | 0+45 0.0498 0.96 Q | | | | 0+50 0.0565 0.96 Q | | | | 0+55 0.0631 0.96 Q | | | | 1+ 0 0.0698 0.97 Q | | | | 1+ 5 0.0764 0.97 Q | | | | 1+10 0.0831 0.97 Q | | | | 1+15 0.0899 0.98 Q | | | | 1+20 0.0966 0.98 Q | | | | 1+25 0.1034 0.98 Q | | | | 1+30 0.1102 0.99 QV | | | | 1+35 0.1170 0.99 QV | | | | 1+40 0.1238 0.99 QV | | | | 1+45 0.1306 0.99 QV | | | | 1+50 0.1375 1.00 QV | | | | 1+55 0.1444 1.00 |Q | | | | 2+ 0 0.1513 1.00 |Q | | | | 2+ 5 0.1583 1.01 |Q | | | | 2+10 0.1652 1.01 |Q | | | | 2+15 0.1722 1.01 |Q | | | | 2+20 0.1792 1.02 |Q | | | | 2+25 0.1863 1.02 |Q | | | | 2+30 0.1933 1.03 |Q | | | | 2+35 0.2004 1.03 |Q | | | | 2+40 0.2075 1.03 |Q | | | | 2+45 0.2147 1.04 |Q | | | | 2+50 0.2218 1.04 |QV | | | | 2+55 0.2290 1.04 |QV | | | | 3+ 0 0.2362 1.05 |QV | | | | 3+ 5 0.2434 1.05 |QV | | | | 3+10 0.2507 1.05 |QV | | | | 3+15 0.2580 1.06 |QV | | | | 3+20 0.2653 1.06 |QV | | | | 3+25 0.2726 1.07 |QV | | | | 3+30 0.2800 1.07 |QV | | | | 3+35 0.2874 1.07 |QV | | | | 3+40 0.2948 1.08 |QV | | | | 3+45 0.3023 1.08 |QV | | | | 3+50 0.3098 1.09 |QV | | | | 3+55 0.3173 1.09 |QV | | | | 4+ 0 0.3248 1.09 |Q V | | | | 4+ 5 0.3324 1.10 |Q V | | | | 4+10 0.3400 1.10 |Q V | | | | 4+15 0.3476 1.11 |Q V | | | | 4+20 0.3552 1.11 |Q V | | | | 4+25 0.3629 1.12 |Q V | | | | 4+30 0.3706 1.12 |Q V | | | | 4+35 0.3784 1.12 |Q V | | | | 4+40 0.3862 1.13 |Q V | | | | 4+45 0.3940 1.13 |Q V | | | | 4+50 0.4018 1.14 |Q V | | | | 4+55 0.4097 1.14 |Q V | | | | 5+ 0 0.4176 1.15 |Q V | | | | 5+ 5 0.4255 1.15 |Q V | | | | 5+10 0.4335 1.16 |Q V | | | | 5+15 0.4415 1.16 |Q V | | | | 5+20 0.4496 1.17 |Q V | | | | 5+25 0.4576 1.17 |Q V | | | | 5+30 0.4657 1.18 |Q V | | | | 5+35 0.4739 1.18 |Q V | | | | 5+40 0.4821 1.19 |Q V | | | | 5+45 0.4903 1.19 |Q V | | | | 5+50 0.4986 1.20 |Q V | | | | 5+55 0.5069 1.20 |Q V | | | | 6+ 0 0.5152 1.21 |Q V | | | | 6+ 5 0.5236 1.22 |Q V | | | | 6+10 0.5320 1.22 |Q V | | | | 6+15 0.5404 1.23 |Q V | | | | 6+20 0.5489 1.23 |Q V | | | | 6+25 0.5575 1.24 |Q V | | | | 6+30 0.5660 1.25 |Q V | | | | 6+35 0.5746 1.25 |Q V | | | | 6+40 0.5833 1.26 |Q V | | | | 6+45 0.5920 1.26 |Q V | | | | 6+50 0.6007 1.27 |Q V | | | | 6+55 0.6095 1.28 |Q V | | | | 7+ 0 0.6184 1.28 |Q V | | | | 7+ 5 0.6272 1.29 |Q V | | | | 7+10 0.6362 1.30 |Q V | | | | 7+15 0.6451 1.30 |Q V | | | | 7+20 0.6542 1.31 |Q V | | | | 7+25 0.6632 1.32 |Q V | | | | 7+30 0.6723 1.32 |Q V | | | | 7+35 0.6815 1.33 |Q V | | | | 7+40 0.6907 1.34 |Q V | | | | 7+45 0.7000 1.35 |Q V | | | | 7+50 0.7093 1.35 |Q V | | | | 7+55 0.7187 1.36 |Q V | | | | 8+ 0 0.7281 1.37 |Q V | | | | 8+ 5 0.7376 1.38 |Q V | | | | 8+10 0.7471 1.38 |Q V | | | | 8+15 0.7567 1.39 |Q V | | | | 8+20 0.7663 1.40 |Q V | | | | 8+25 0.7761 1.41 |Q V | | | | 8+30 0.7858 1.42 |Q V | | | | 8+35 0.7956 1.43 |Q V | | | | 8+40 0.8055 1.44 |Q V | | | | 8+45 0.8155 1.44 |Q V | | | | 8+50 0.8255 1.45 |Q V | | | | 8+55 0.8356 1.46 |Q V | | | | 9+ 0 0.8457 1.47 |Q V | | | | 9+ 5 0.8559 1.48 |Q V | | | | 9+10 0.8662 1.49 |Q V | | | | 9+15 0.8765 1.50 |Q V | | | | 9+20 0.8869 1.51 |Q V | | | | 9+25 0.8974 1.52 |Q V | | | | 9+30 0.9080 1.53 |Q V | | | | 9+35 0.9186 1.54 |Q V | | | | 9+40 0.9293 1.56 |Q V | | | | 9+45 0.9401 1.57 |Q V | | | | 9+50 0.9510 1.58 |Q V | | | | 9+55 0.9619 1.59 |Q V | | | | 10+ 0 0.9730 1.60 |Q V| | | | 10+ 5 0.9841 1.61 |Q V| | | | 10+10 0.9953 1.63 |Q V| | | | 10+15 1.0066 1.64 |Q V| | | | 10+20 1.0180 1.65 |Q V| | | | 10+25 1.0294 1.67 |Q V| | | | 10+30 1.0410 1.68 |Q V| | | | 10+35 1.0527 1.69 |Q V| | | | 10+40 1.0644 1.71 |Q V| | | | 10+45 1.0763 1.72 |Q V| | | | 10+50 1.0883 1.74 |Q V | | | 10+55 1.1003 1.75 |Q V | | | 11+ 0 1.1125 1.77 |Q V | | | 11+ 5 1.1248 1.78 |Q V | | | 11+10 1.1372 1.80 |Q V | | | 11+15 1.1497 1.82 |Q V | | | 11+20 1.1624 1.84 |Q V | | | 11+25 1.1752 1.85 |Q V | | | 11+30 1.1881 1.87 |Q |V | | | 11+35 1.2011 1.89 |Q |V | | | 11+40 1.2142 1.91 |Q |V | | | 11+45 1.2275 1.93 |Q |V | | | 11+50 1.2410 1.95 |Q |V | | | 11+55 1.2546 1.97 |Q |V | | | 12+ 0 1.2683 2.00 |Q |V | | | 12+ 5 1.2824 2.05 | Q |V | | | 12+10 1.2977 2.21 | Q | V | | | 12+15 1.3137 2.33 | Q | V | | | 12+20 1.3300 2.37 | Q | V | | | 12+25 1.3465 2.40 | Q | V | | | 12+30 1.3632 2.43 | Q | V | | | 12+35 1.3801 2.45 | Q | V | | | 12+40 1.3972 2.48 | Q | V | | | 12+45 1.4145 2.51 | Q | V | | | 12+50 1.4320 2.54 | Q | V | | | 12+55 1.4498 2.58 | Q | V | | | 13+ 0 1.4677 2.61 | Q | V | | | 13+ 5 1.4860 2.64 | Q | V | | | 13+10 1.5044 2.68 | Q | V | | | 13+15 1.5231 2.72 | Q | V | | | 13+20 1.5421 2.76 | Q | V | | | 13+25 1.5614 2.80 | Q | V | | | 13+30 1.5810 2.84 | Q | V | | | 13+35 1.6009 2.89 | Q | V | | | 13+40 1.6211 2.94 | Q | V | | | 13+45 1.6417 2.99 | Q | V | | | 13+50 1.6626 3.04 | Q | V | | | 13+55 1.6839 3.09 | Q | V | | | 14+ 0 1.7057 3.16 | Q | V | | | 14+ 5 1.7278 3.22 | Q | V | | | 14+10 1.7504 3.29 | Q | V | | | 14+15 1.7735 3.35 | Q | V | | | 14+20 1.7972 3.43 | Q | V | | | 14+25 1.8213 3.51 | Q | V | | | 14+30 1.8461 3.60 | Q | V | | | 14+35 1.8715 3.69 | Q | V | | | 14+40 1.8977 3.79 | Q | V | | | 14+45 1.9245 3.90 | Q | V | | | 14+50 1.9522 4.02 | Q | V | | | 14+55 1.9808 4.15 | Q | V | | | 15+ 0 2.0104 4.30 | Q | V | | | 15+ 5 2.0410 4.45 | Q | V | | | 15+10 2.0730 4.64 | Q | V| | | 15+15 2.1063 4.84 | Q | V| | | 15+20 2.1413 5.08 | Q | V| | | 15+25 2.1773 5.22 | Q | V | | 15+30 2.2116 4.99 | Q | V | | 15+35 2.2460 4.99 | Q | V | | 15+40 2.2833 5.42 | Q | |V | | 15+45 2.3246 6.00 | Q | |V | | 15+50 2.3724 6.93 | Q | |V | | 15+55 2.4299 8.36 | Q | | V | | 16+ 0 2.5084 11.40 | |Q | V | | 16+ 5 2.6436 19.62 | | Q| V | | 16+10 2.8963 36.69 | | | V | Q | 16+15 3.0718 25.49 | | | Q V | | 16+20 3.1454 10.69 | Q | V| | 16+25 3.1918 6.74 | Q | | V| | 16+30 3.2301 5.56 | Q | | V| | 16+35 3.2660 5.21 | Q | | V | 16+40 3.2989 4.77 | Q | | V | 16+45 3.3293 4.41 | Q | | V | 16+50 3.3576 4.11 | Q | | |V | 16+55 3.3842 3.87 | Q | | |V | 17+ 0 3.4094 3.66 | Q | | |V | 17+ 5 3.4334 3.48 | Q | | |V | 17+10 3.4564 3.33 | Q | | | V | 17+15 3.4784 3.20 | Q | | | V | 17+20 3.4996 3.08 | Q | | | V | 17+25 3.5200 2.97 | Q | | | V | 17+30 3.5398 2.87 | Q | | | V | 17+35 3.5590 2.79 | Q | | | V | 17+40 3.5776 2.71 | Q | | | V | 17+45 3.5958 2.63 | Q | | | V | 17+50 3.6134 2.56 | Q | | | V | 17+55 3.6306 2.50 | Q | | | V | 18+ 0 3.6475 2.44 | Q | | | V | 18+ 5 3.6637 2.36 | Q | | | V | 18+10 3.6787 2.17 | Q | | | V | 18+15 3.6926 2.03 | Q | | | V | 18+20 3.7062 1.97 |Q | | | V | 18+25 3.7194 1.92 |Q | | | V | 18+30 3.7324 1.88 |Q | | | V | 18+35 3.7451 1.85 |Q | | | V | 18+40 3.7576 1.81 |Q | | | V | 18+45 3.7699 1.78 |Q | | | V | 18+50 3.7819 1.75 |Q | | | V | 18+55 3.7937 1.72 |Q | | | V | 19+ 0 3.8054 1.69 |Q | | | V | 19+ 5 3.8168 1.66 |Q | | | V | 19+10 3.8281 1.63 |Q | | | V | 19+15 3.8392 1.61 |Q | | | V | 19+20 3.8501 1.59 |Q | | | V | 19+25 3.8608 1.56 |Q | | | V | 19+30 3.8714 1.54 |Q | | | V | 19+35 3.8819 1.52 |Q | | | V | 19+40 3.8922 1.50 |Q | | | V | 19+45 3.9024 1.48 |Q | | | V | 19+50 3.9125 1.46 |Q | | | V | 19+55 3.9224 1.44 |Q | | | V | 20+ 0 3.9322 1.42 |Q | | | V | 20+ 5 3.9419 1.41 |Q | | | V | 20+10 3.9514 1.39 |Q | | | V | 20+15 3.9609 1.37 |Q | | | V | 20+20 3.9702 1.36 |Q | | | V | 20+25 3.9795 1.34 |Q | | | V | 20+30 3.9886 1.33 |Q | | | V | 20+35 3.9977 1.31 |Q | | | V | 20+40 4.0066 1.30 |Q | | | V | 20+45 4.0155 1.29 |Q | | | V | 20+50 4.0243 1.27 |Q | | | V | 20+55 4.0330 1.26 |Q | | | V | 21+ 0 4.0416 1.25 |Q | | | V | 21+ 5 4.0501 1.24 |Q | | | V | 21+10 4.0585 1.23 |Q | | | V | 21+15 4.0669 1.21 |Q | | | V | 21+20 4.0752 1.20 |Q | | | V | 21+25 4.0834 1.19 |Q | | | V | 21+30 4.0915 1.18 |Q | | | V | 21+35 4.0996 1.17 |Q | | | V | 21+40 4.1076 1.16 |Q | | | V | 21+45 4.1155 1.15 |Q | | | V | 21+50 4.1233 1.14 |Q | | | V | 21+55 4.1311 1.13 |Q | | | V | 22+ 0 4.1389 1.12 |Q | | | V | 22+ 5 4.1466 1.11 |Q | | | V | 22+10 4.1542 1.11 |Q | | | V | 22+15 4.1617 1.10 |Q | | | V | 22+20 4.1692 1.09 |Q | | | V | 22+25 4.1767 1.08 |Q | | | V | 22+30 4.1840 1.07 |Q | | | V | 22+35 4.1914 1.06 |Q | | | V | 22+40 4.1986 1.06 |Q | | | V | 22+45 4.2059 1.05 |Q | | | V | 22+50 4.2130 1.04 |Q | | | V| 22+55 4.2202 1.03 |Q | | | V| 23+ 0 4.2272 1.03 |Q | | | V| 23+ 5 4.2343 1.02 |Q | | | V| 23+10 4.2413 1.01 |Q | | | V| 23+15 4.2482 1.01 |Q | | | V| 23+20 4.2551 1.00 |Q | | | V| 23+25 4.2619 0.99 Q | | | V| 23+30 4.2687 0.99 Q | | | V| 23+35 4.2755 0.98 Q | | | V| 23+40 4.2822 0.97 Q | | | V| 23+45 4.2889 0.97 Q | | | V| 23+50 4.2955 0.96 Q | | | V| 23+55 4.3021 0.96 Q | | | V| 24+ 0 4.3086 0.95 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX C.8 UNIT HYDROGRAPH ANALYSIS POST-DEVELOPMENT CONDITIONS – 100 YEAR U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 100-YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA A -------------------------------------------------------------------- Storm Event Year = 100 Antecedent Moisture Condition = 3 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 100 24.47 1 1.33 -------------------------------------------------------------------- Rainfall data for year 100 24.47 6 3.11 -------------------------------------------------------------------- Rainfall data for year 100 24.47 24 5.69 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 3) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 52.0 24.47 1.000 0.785 0.120 0.094 Area-averaged adjusted loss rate Fm (In/Hr) = 0.094 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC3) Yield Fr 2.94 0.120 32.0 52.0 9.23 0.199 21.53 0.880 98.0 98.0 0.20 0.958 Area-averaged catchment yield fraction, Y = 0.867 Area-averaged low loss fraction, Yb = 0.133 User entry of time of concentration = 0.141 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 24.47(Ac.) Catchment Lag time = 0.113 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 73.8247 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.094(In/Hr) Average low loss rate fraction (Yb) = 0.133 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.492(In) Computed peak 30-minute rainfall = 1.008(In) Specified peak 1-hour rainfall = 1.330(In) Computed peak 3-hour rainfall = 2.239(In) Specified peak 6-hour rainfall = 3.110(In) Specified peak 24-hour rainfall = 5.690(In) Rainfall depth area reduction factors: Using a total area of 24.47(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.492(In) 30-minute factor = 0.999 Adjusted rainfall = 1.007(In) 1-hour factor = 0.999 Adjusted rainfall = 1.328(In) 3-hour factor = 1.000 Adjusted rainfall = 2.239(In) 6-hour factor = 1.000 Adjusted rainfall = 3.110(In) 24-hour factor = 1.000 Adjusted rainfall = 5.690(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 295.93 (CFS)) 1 9.712 28.740 2 57.561 141.604 3 91.432 100.233 4 98.356 20.492 5 100.000 4.865 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.4917 0.4917 2 0.6488 0.1571 3 0.7630 0.1142 4 0.8561 0.0931 5 0.9360 0.0799 6 1.0068 0.0708 7 1.0708 0.0640 8 1.1296 0.0588 9 1.1841 0.0545 10 1.2350 0.0510 11 1.2830 0.0480 12 1.3285 0.0454 13 1.3800 0.0515 14 1.4294 0.0494 15 1.4770 0.0476 16 1.5230 0.0460 17 1.5675 0.0445 18 1.6106 0.0431 19 1.6525 0.0419 20 1.6933 0.0408 21 1.7330 0.0397 22 1.7717 0.0387 23 1.8095 0.0378 24 1.8465 0.0370 25 1.8826 0.0362 26 1.9180 0.0354 27 1.9527 0.0347 28 1.9867 0.0340 29 2.0201 0.0334 30 2.0529 0.0328 31 2.0851 0.0322 32 2.1168 0.0317 33 2.1480 0.0312 34 2.1787 0.0307 35 2.2089 0.0302 36 2.2386 0.0298 37 2.2679 0.0293 38 2.2968 0.0289 39 2.3252 0.0285 40 2.3533 0.0281 41 2.3810 0.0277 42 2.4084 0.0274 43 2.4354 0.0270 44 2.4621 0.0267 45 2.4885 0.0264 46 2.5146 0.0261 47 2.5403 0.0258 48 2.5658 0.0255 49 2.5910 0.0252 50 2.6160 0.0249 51 2.6407 0.0247 52 2.6651 0.0244 53 2.6893 0.0242 54 2.7132 0.0239 55 2.7369 0.0237 56 2.7604 0.0235 57 2.7837 0.0233 58 2.8067 0.0231 59 2.8296 0.0228 60 2.8522 0.0226 61 2.8746 0.0224 62 2.8969 0.0223 63 2.9190 0.0221 64 2.9408 0.0219 65 2.9625 0.0217 66 2.9841 0.0215 67 3.0054 0.0214 68 3.0266 0.0212 69 3.0476 0.0210 70 3.0685 0.0209 71 3.0892 0.0207 72 3.1098 0.0206 73 3.1285 0.0187 74 3.1471 0.0186 75 3.1656 0.0185 76 3.1839 0.0183 77 3.2021 0.0182 78 3.2202 0.0181 79 3.2381 0.0179 80 3.2559 0.0178 81 3.2735 0.0177 82 3.2911 0.0176 83 3.3085 0.0174 84 3.3258 0.0173 85 3.3430 0.0172 86 3.3601 0.0171 87 3.3771 0.0170 88 3.3940 0.0169 89 3.4107 0.0168 90 3.4274 0.0166 91 3.4439 0.0165 92 3.4603 0.0164 93 3.4767 0.0163 94 3.4929 0.0162 95 3.5091 0.0161 96 3.5251 0.0160 97 3.5411 0.0160 98 3.5569 0.0159 99 3.5727 0.0158 100 3.5884 0.0157 101 3.6040 0.0156 102 3.6195 0.0155 103 3.6349 0.0154 104 3.6503 0.0153 105 3.6655 0.0153 106 3.6807 0.0152 107 3.6958 0.0151 108 3.7108 0.0150 109 3.7257 0.0149 110 3.7406 0.0149 111 3.7554 0.0148 112 3.7701 0.0147 113 3.7847 0.0146 114 3.7993 0.0146 115 3.8137 0.0145 116 3.8282 0.0144 117 3.8425 0.0143 118 3.8568 0.0143 119 3.8710 0.0142 120 3.8851 0.0141 121 3.8992 0.0141 122 3.9132 0.0140 123 3.9272 0.0139 124 3.9411 0.0139 125 3.9549 0.0138 126 3.9686 0.0138 127 3.9823 0.0137 128 3.9960 0.0136 129 4.0095 0.0136 130 4.0231 0.0135 131 4.0365 0.0135 132 4.0499 0.0134 133 4.0633 0.0133 134 4.0765 0.0133 135 4.0898 0.0132 136 4.1029 0.0132 137 4.1161 0.0131 138 4.1291 0.0131 139 4.1421 0.0130 140 4.1551 0.0130 141 4.1680 0.0129 142 4.1809 0.0129 143 4.1937 0.0128 144 4.2064 0.0128 145 4.2191 0.0127 146 4.2318 0.0127 147 4.2444 0.0126 148 4.2570 0.0126 149 4.2695 0.0125 150 4.2819 0.0125 151 4.2943 0.0124 152 4.3067 0.0124 153 4.3190 0.0123 154 4.3313 0.0123 155 4.3436 0.0122 156 4.3557 0.0122 157 4.3679 0.0121 158 4.3800 0.0121 159 4.3920 0.0121 160 4.4041 0.0120 161 4.4160 0.0120 162 4.4280 0.0119 163 4.4399 0.0119 164 4.4517 0.0118 165 4.4635 0.0118 166 4.4753 0.0118 167 4.4870 0.0117 168 4.4987 0.0117 169 4.5104 0.0117 170 4.5220 0.0116 171 4.5335 0.0116 172 4.5451 0.0115 173 4.5566 0.0115 174 4.5680 0.0115 175 4.5795 0.0114 176 4.5908 0.0114 177 4.6022 0.0113 178 4.6135 0.0113 179 4.6248 0.0113 180 4.6360 0.0112 181 4.6472 0.0112 182 4.6584 0.0112 183 4.6695 0.0111 184 4.6806 0.0111 185 4.6917 0.0111 186 4.7027 0.0110 187 4.7137 0.0110 188 4.7247 0.0110 189 4.7356 0.0109 190 4.7466 0.0109 191 4.7574 0.0109 192 4.7683 0.0108 193 4.7791 0.0108 194 4.7898 0.0108 195 4.8006 0.0107 196 4.8113 0.0107 197 4.8220 0.0107 198 4.8326 0.0107 199 4.8433 0.0106 200 4.8538 0.0106 201 4.8644 0.0106 202 4.8749 0.0105 203 4.8854 0.0105 204 4.8959 0.0105 205 4.9064 0.0104 206 4.9168 0.0104 207 4.9272 0.0104 208 4.9375 0.0104 209 4.9479 0.0103 210 4.9582 0.0103 211 4.9684 0.0103 212 4.9787 0.0102 213 4.9889 0.0102 214 4.9991 0.0102 215 5.0093 0.0102 216 5.0194 0.0101 217 5.0295 0.0101 218 5.0396 0.0101 219 5.0497 0.0101 220 5.0597 0.0100 221 5.0697 0.0100 222 5.0797 0.0100 223 5.0897 0.0100 224 5.0996 0.0099 225 5.1095 0.0099 226 5.1194 0.0099 227 5.1292 0.0099 228 5.1391 0.0098 229 5.1489 0.0098 230 5.1587 0.0098 231 5.1684 0.0098 232 5.1782 0.0097 233 5.1879 0.0097 234 5.1976 0.0097 235 5.2072 0.0097 236 5.2169 0.0096 237 5.2265 0.0096 238 5.2361 0.0096 239 5.2457 0.0096 240 5.2552 0.0096 241 5.2648 0.0095 242 5.2743 0.0095 243 5.2838 0.0095 244 5.2932 0.0095 245 5.3027 0.0094 246 5.3121 0.0094 247 5.3215 0.0094 248 5.3309 0.0094 249 5.3402 0.0094 250 5.3496 0.0093 251 5.3589 0.0093 252 5.3682 0.0093 253 5.3774 0.0093 254 5.3867 0.0093 255 5.3959 0.0092 256 5.4051 0.0092 257 5.4143 0.0092 258 5.4235 0.0092 259 5.4327 0.0092 260 5.4418 0.0091 261 5.4509 0.0091 262 5.4600 0.0091 263 5.4691 0.0091 264 5.4781 0.0091 265 5.4871 0.0090 266 5.4962 0.0090 267 5.5052 0.0090 268 5.5141 0.0090 269 5.5231 0.0090 270 5.5320 0.0089 271 5.5409 0.0089 272 5.5498 0.0089 273 5.5587 0.0089 274 5.5676 0.0089 275 5.5764 0.0088 276 5.5853 0.0088 277 5.5941 0.0088 278 5.6029 0.0088 279 5.6116 0.0088 280 5.6204 0.0088 281 5.6291 0.0087 282 5.6379 0.0087 283 5.6466 0.0087 284 5.6553 0.0087 285 5.6639 0.0087 286 5.6726 0.0087 287 5.6812 0.0086 288 5.6898 0.0086 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0086 0.0011 0.0075 2 0.0086 0.0011 0.0075 3 0.0087 0.0012 0.0075 4 0.0087 0.0012 0.0075 5 0.0087 0.0012 0.0076 6 0.0087 0.0012 0.0076 7 0.0088 0.0012 0.0076 8 0.0088 0.0012 0.0076 9 0.0088 0.0012 0.0077 10 0.0088 0.0012 0.0077 11 0.0089 0.0012 0.0077 12 0.0089 0.0012 0.0077 13 0.0089 0.0012 0.0077 14 0.0090 0.0012 0.0078 15 0.0090 0.0012 0.0078 16 0.0090 0.0012 0.0078 17 0.0091 0.0012 0.0078 18 0.0091 0.0012 0.0079 19 0.0091 0.0012 0.0079 20 0.0091 0.0012 0.0079 21 0.0092 0.0012 0.0080 22 0.0092 0.0012 0.0080 23 0.0092 0.0012 0.0080 24 0.0093 0.0012 0.0080 25 0.0093 0.0012 0.0081 26 0.0093 0.0012 0.0081 27 0.0094 0.0012 0.0081 28 0.0094 0.0012 0.0081 29 0.0094 0.0013 0.0082 30 0.0094 0.0013 0.0082 31 0.0095 0.0013 0.0082 32 0.0095 0.0013 0.0082 33 0.0096 0.0013 0.0083 34 0.0096 0.0013 0.0083 35 0.0096 0.0013 0.0083 36 0.0096 0.0013 0.0084 37 0.0097 0.0013 0.0084 38 0.0097 0.0013 0.0084 39 0.0098 0.0013 0.0085 40 0.0098 0.0013 0.0085 41 0.0098 0.0013 0.0085 42 0.0099 0.0013 0.0085 43 0.0099 0.0013 0.0086 44 0.0099 0.0013 0.0086 45 0.0100 0.0013 0.0087 46 0.0100 0.0013 0.0087 47 0.0101 0.0013 0.0087 48 0.0101 0.0013 0.0087 49 0.0101 0.0013 0.0088 50 0.0102 0.0014 0.0088 51 0.0102 0.0014 0.0089 52 0.0102 0.0014 0.0089 53 0.0103 0.0014 0.0089 54 0.0103 0.0014 0.0090 55 0.0104 0.0014 0.0090 56 0.0104 0.0014 0.0090 57 0.0105 0.0014 0.0091 58 0.0105 0.0014 0.0091 59 0.0106 0.0014 0.0092 60 0.0106 0.0014 0.0092 61 0.0107 0.0014 0.0092 62 0.0107 0.0014 0.0093 63 0.0107 0.0014 0.0093 64 0.0108 0.0014 0.0093 65 0.0108 0.0014 0.0094 66 0.0109 0.0014 0.0094 67 0.0109 0.0015 0.0095 68 0.0110 0.0015 0.0095 69 0.0110 0.0015 0.0096 70 0.0111 0.0015 0.0096 71 0.0111 0.0015 0.0097 72 0.0112 0.0015 0.0097 73 0.0112 0.0015 0.0097 74 0.0113 0.0015 0.0098 75 0.0113 0.0015 0.0098 76 0.0114 0.0015 0.0099 77 0.0115 0.0015 0.0099 78 0.0115 0.0015 0.0100 79 0.0116 0.0015 0.0100 80 0.0116 0.0015 0.0101 81 0.0117 0.0016 0.0101 82 0.0117 0.0016 0.0102 83 0.0118 0.0016 0.0102 84 0.0118 0.0016 0.0103 85 0.0119 0.0016 0.0103 86 0.0120 0.0016 0.0104 87 0.0121 0.0016 0.0105 88 0.0121 0.0016 0.0105 89 0.0122 0.0016 0.0106 90 0.0122 0.0016 0.0106 91 0.0123 0.0016 0.0107 92 0.0124 0.0016 0.0107 93 0.0125 0.0017 0.0108 94 0.0125 0.0017 0.0108 95 0.0126 0.0017 0.0109 96 0.0127 0.0017 0.0110 97 0.0128 0.0017 0.0111 98 0.0128 0.0017 0.0111 99 0.0129 0.0017 0.0112 100 0.0130 0.0017 0.0112 101 0.0131 0.0017 0.0113 102 0.0131 0.0017 0.0114 103 0.0132 0.0018 0.0115 104 0.0133 0.0018 0.0115 105 0.0134 0.0018 0.0116 106 0.0135 0.0018 0.0117 107 0.0136 0.0018 0.0118 108 0.0136 0.0018 0.0118 109 0.0138 0.0018 0.0119 110 0.0138 0.0018 0.0120 111 0.0139 0.0019 0.0121 112 0.0140 0.0019 0.0121 113 0.0141 0.0019 0.0123 114 0.0142 0.0019 0.0123 115 0.0143 0.0019 0.0124 116 0.0144 0.0019 0.0125 117 0.0146 0.0019 0.0126 118 0.0146 0.0019 0.0127 119 0.0148 0.0020 0.0128 120 0.0149 0.0020 0.0129 121 0.0150 0.0020 0.0130 122 0.0151 0.0020 0.0131 123 0.0153 0.0020 0.0132 124 0.0153 0.0020 0.0133 125 0.0155 0.0021 0.0134 126 0.0156 0.0021 0.0135 127 0.0158 0.0021 0.0137 128 0.0159 0.0021 0.0138 129 0.0160 0.0021 0.0139 130 0.0161 0.0021 0.0140 131 0.0163 0.0022 0.0142 132 0.0164 0.0022 0.0143 133 0.0166 0.0022 0.0144 134 0.0168 0.0022 0.0145 135 0.0170 0.0023 0.0147 136 0.0171 0.0023 0.0148 137 0.0173 0.0023 0.0150 138 0.0174 0.0023 0.0151 139 0.0177 0.0023 0.0153 140 0.0178 0.0024 0.0154 141 0.0181 0.0024 0.0157 142 0.0182 0.0024 0.0158 143 0.0185 0.0025 0.0160 144 0.0186 0.0025 0.0161 145 0.0206 0.0027 0.0178 146 0.0207 0.0028 0.0180 147 0.0210 0.0028 0.0182 148 0.0212 0.0028 0.0184 149 0.0215 0.0029 0.0187 150 0.0217 0.0029 0.0188 151 0.0221 0.0029 0.0191 152 0.0223 0.0030 0.0193 153 0.0226 0.0030 0.0196 154 0.0228 0.0030 0.0198 155 0.0233 0.0031 0.0202 156 0.0235 0.0031 0.0204 157 0.0239 0.0032 0.0208 158 0.0242 0.0032 0.0210 159 0.0247 0.0033 0.0214 160 0.0249 0.0033 0.0216 161 0.0255 0.0034 0.0221 162 0.0258 0.0034 0.0223 163 0.0264 0.0035 0.0229 164 0.0267 0.0035 0.0231 165 0.0274 0.0036 0.0237 166 0.0277 0.0037 0.0240 167 0.0285 0.0038 0.0247 168 0.0289 0.0038 0.0250 169 0.0298 0.0040 0.0258 170 0.0302 0.0040 0.0262 171 0.0312 0.0041 0.0270 172 0.0317 0.0042 0.0275 173 0.0328 0.0044 0.0284 174 0.0334 0.0044 0.0290 175 0.0347 0.0046 0.0301 176 0.0354 0.0047 0.0307 177 0.0370 0.0049 0.0320 178 0.0378 0.0050 0.0328 179 0.0397 0.0053 0.0344 180 0.0408 0.0054 0.0353 181 0.0431 0.0057 0.0374 182 0.0445 0.0059 0.0386 183 0.0476 0.0063 0.0413 184 0.0494 0.0066 0.0429 185 0.0454 0.0060 0.0394 186 0.0480 0.0064 0.0416 187 0.0545 0.0072 0.0472 188 0.0588 0.0078 0.0509 189 0.0708 0.0079 0.0630 190 0.0799 0.0079 0.0721 191 0.1142 0.0079 0.1064 192 0.1571 0.0079 0.1492 193 0.4917 0.0079 0.4838 194 0.0931 0.0079 0.0852 195 0.0640 0.0079 0.0562 196 0.0510 0.0068 0.0442 197 0.0515 0.0068 0.0446 198 0.0460 0.0061 0.0399 199 0.0419 0.0056 0.0363 200 0.0387 0.0051 0.0336 201 0.0362 0.0048 0.0313 202 0.0340 0.0045 0.0295 203 0.0322 0.0043 0.0279 204 0.0307 0.0041 0.0266 205 0.0293 0.0039 0.0254 206 0.0281 0.0037 0.0243 207 0.0270 0.0036 0.0234 208 0.0261 0.0035 0.0226 209 0.0252 0.0034 0.0219 210 0.0244 0.0032 0.0212 211 0.0237 0.0032 0.0206 212 0.0231 0.0031 0.0200 213 0.0224 0.0030 0.0195 214 0.0219 0.0029 0.0190 215 0.0214 0.0028 0.0185 216 0.0209 0.0028 0.0181 217 0.0187 0.0025 0.0163 218 0.0183 0.0024 0.0159 219 0.0179 0.0024 0.0155 220 0.0176 0.0023 0.0152 221 0.0172 0.0023 0.0149 222 0.0169 0.0022 0.0146 223 0.0165 0.0022 0.0143 224 0.0162 0.0022 0.0141 225 0.0160 0.0021 0.0138 226 0.0157 0.0021 0.0136 227 0.0154 0.0021 0.0134 228 0.0152 0.0020 0.0132 229 0.0149 0.0020 0.0129 230 0.0147 0.0020 0.0128 231 0.0145 0.0019 0.0126 232 0.0143 0.0019 0.0124 233 0.0141 0.0019 0.0122 234 0.0139 0.0018 0.0120 235 0.0137 0.0018 0.0119 236 0.0135 0.0018 0.0117 237 0.0133 0.0018 0.0116 238 0.0132 0.0018 0.0114 239 0.0130 0.0017 0.0113 240 0.0129 0.0017 0.0111 241 0.0127 0.0017 0.0110 242 0.0126 0.0017 0.0109 243 0.0124 0.0017 0.0108 244 0.0123 0.0016 0.0106 245 0.0121 0.0016 0.0105 246 0.0120 0.0016 0.0104 247 0.0119 0.0016 0.0103 248 0.0118 0.0016 0.0102 249 0.0117 0.0015 0.0101 250 0.0115 0.0015 0.0100 251 0.0114 0.0015 0.0099 252 0.0113 0.0015 0.0098 253 0.0112 0.0015 0.0097 254 0.0111 0.0015 0.0096 255 0.0110 0.0015 0.0095 256 0.0109 0.0014 0.0095 257 0.0108 0.0014 0.0094 258 0.0107 0.0014 0.0093 259 0.0106 0.0014 0.0092 260 0.0105 0.0014 0.0091 261 0.0104 0.0014 0.0091 262 0.0104 0.0014 0.0090 263 0.0103 0.0014 0.0089 264 0.0102 0.0014 0.0088 265 0.0101 0.0013 0.0088 266 0.0100 0.0013 0.0087 267 0.0100 0.0013 0.0086 268 0.0099 0.0013 0.0086 269 0.0098 0.0013 0.0085 270 0.0097 0.0013 0.0084 271 0.0097 0.0013 0.0084 272 0.0096 0.0013 0.0083 273 0.0095 0.0013 0.0083 274 0.0095 0.0013 0.0082 275 0.0094 0.0012 0.0082 276 0.0093 0.0012 0.0081 277 0.0093 0.0012 0.0080 278 0.0092 0.0012 0.0080 279 0.0092 0.0012 0.0079 280 0.0091 0.0012 0.0079 281 0.0090 0.0012 0.0078 282 0.0090 0.0012 0.0078 283 0.0089 0.0012 0.0077 284 0.0089 0.0012 0.0077 285 0.0088 0.0012 0.0076 286 0.0088 0.0012 0.0076 287 0.0087 0.0012 0.0075 288 0.0087 0.0012 0.0075 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.67(In) Total effective rainfall = 5.02(In) Peak flow rate in flood hydrograph = 88.45(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 22.5 45.0 67.5 90.0 ----------------------------------------------------------------------- 0+ 5 0.0015 0.21 Q | | | | 0+10 0.0102 1.27 Q | | | | 0+15 0.0242 2.03 Q | | | | 0+20 0.0392 2.18 Q | | | | 0+25 0.0546 2.23 Q | | | | 0+30 0.0700 2.23 Q | | | | 0+35 0.0854 2.24 Q | | | | 0+40 0.1009 2.25 Q | | | | 0+45 0.1164 2.25 VQ | | | | 0+50 0.1320 2.26 VQ | | | | 0+55 0.1476 2.27 VQ | | | | 1+ 0 0.1633 2.28 VQ | | | | 1+ 5 0.1790 2.28 VQ | | | | 1+10 0.1947 2.29 VQ | | | | 1+15 0.2106 2.30 VQ | | | | 1+20 0.2264 2.30 VQ | | | | 1+25 0.2423 2.31 VQ | | | | 1+30 0.2583 2.32 |Q | | | | 1+35 0.2743 2.33 |Q | | | | 1+40 0.2904 2.33 |Q | | | | 1+45 0.3065 2.34 |Q | | | | 1+50 0.3227 2.35 |Q | | | | 1+55 0.3389 2.36 |Q | | | | 2+ 0 0.3552 2.36 |Q | | | | 2+ 5 0.3715 2.37 |Q | | | | 2+10 0.3879 2.38 |Q | | | | 2+15 0.4044 2.39 |Q | | | | 2+20 0.4209 2.40 |Q | | | | 2+25 0.4374 2.40 |Q | | | | 2+30 0.4540 2.41 |Q | | | | 2+35 0.4707 2.42 |Q | | | | 2+40 0.4874 2.43 |Q | | | | 2+45 0.5042 2.44 |Q | | | | 2+50 0.5211 2.45 |QV | | | | 2+55 0.5380 2.45 |QV | | | | 3+ 0 0.5550 2.46 |QV | | | | 3+ 5 0.5720 2.47 |QV | | | | 3+10 0.5891 2.48 |QV | | | | 3+15 0.6062 2.49 |QV | | | | 3+20 0.6234 2.50 |QV | | | | 3+25 0.6407 2.51 |QV | | | | 3+30 0.6581 2.52 |QV | | | | 3+35 0.6755 2.53 |QV | | | | 3+40 0.6929 2.54 |QV | | | | 3+45 0.7105 2.55 |QV | | | | 3+50 0.7281 2.56 |QV | | | | 3+55 0.7458 2.57 |QV | | | | 4+ 0 0.7635 2.58 |QV | | | | 4+ 5 0.7813 2.59 |Q V | | | | 4+10 0.7992 2.60 |Q V | | | | 4+15 0.8171 2.61 |Q V | | | | 4+20 0.8351 2.62 |Q V | | | | 4+25 0.8532 2.63 |Q V | | | | 4+30 0.8714 2.64 |Q V | | | | 4+35 0.8896 2.65 |Q V | | | | 4+40 0.9079 2.66 |Q V | | | | 4+45 0.9263 2.67 |Q V | | | | 4+50 0.9448 2.68 |Q V | | | | 4+55 0.9633 2.69 |Q V | | | | 5+ 0 0.9820 2.70 |Q V | | | | 5+ 5 1.0006 2.71 |Q V | | | | 5+10 1.0194 2.73 |Q V | | | | 5+15 1.0383 2.74 |Q V | | | | 5+20 1.0572 2.75 |Q V | | | | 5+25 1.0762 2.76 |Q V | | | | 5+30 1.0953 2.77 |Q V | | | | 5+35 1.1145 2.79 |Q V | | | | 5+40 1.1338 2.80 |Q V | | | | 5+45 1.1532 2.81 |Q V | | | | 5+50 1.1726 2.82 |Q V | | | | 5+55 1.1922 2.84 |Q V | | | | 6+ 0 1.2118 2.85 |Q V | | | | 6+ 5 1.2315 2.86 |Q V | | | | 6+10 1.2513 2.88 |Q V | | | | 6+15 1.2712 2.89 |Q V | | | | 6+20 1.2912 2.90 |Q V | | | | 6+25 1.3113 2.92 |Q V | | | | 6+30 1.3315 2.93 |Q V | | | | 6+35 1.3518 2.95 |Q V | | | | 6+40 1.3722 2.96 |Q V | | | | 6+45 1.3927 2.98 |Q V | | | | 6+50 1.4133 2.99 |Q V | | | | 6+55 1.4340 3.01 |Q V | | | | 7+ 0 1.4548 3.02 |Q V | | | | 7+ 5 1.4757 3.04 |Q V | | | | 7+10 1.4967 3.05 |Q V | | | | 7+15 1.5178 3.07 |Q V | | | | 7+20 1.5391 3.08 |Q V | | | | 7+25 1.5604 3.10 |Q V | | | | 7+30 1.5819 3.12 |Q V | | | | 7+35 1.6035 3.13 |Q V | | | | 7+40 1.6252 3.15 |Q V | | | | 7+45 1.6470 3.17 |Q V | | | | 7+50 1.6690 3.19 |Q V | | | | 7+55 1.6911 3.21 |Q V | | | | 8+ 0 1.7133 3.22 |Q V | | | | 8+ 5 1.7356 3.24 |Q V | | | | 8+10 1.7581 3.26 |Q V | | | | 8+15 1.7807 3.28 |Q V | | | | 8+20 1.8034 3.30 |Q V | | | | 8+25 1.8263 3.32 |Q V | | | | 8+30 1.8493 3.34 |Q V | | | | 8+35 1.8724 3.36 |Q V | | | | 8+40 1.8957 3.38 |Q V | | | | 8+45 1.9191 3.40 |Q V | | | | 8+50 1.9427 3.43 |Q V | | | | 8+55 1.9665 3.45 |Q V | | | | 9+ 0 1.9904 3.47 |Q V | | | | 9+ 5 2.0144 3.49 |Q V | | | | 9+10 2.0386 3.52 |Q V | | | | 9+15 2.0630 3.54 |Q V | | | | 9+20 2.0876 3.56 |Q V | | | | 9+25 2.1123 3.59 |Q V | | | | 9+30 2.1372 3.61 |Q V | | | | 9+35 2.1622 3.64 |Q V | | | | 9+40 2.1875 3.67 |Q V | | | | 9+45 2.2129 3.69 |Q V | | | | 9+50 2.2385 3.72 |Q V | | | | 9+55 2.2643 3.75 |Q V | | | | 10+ 0 2.2903 3.78 |Q V | | | | 10+ 5 2.3165 3.80 |Q V| | | | 10+10 2.3429 3.83 |Q V| | | | 10+15 2.3696 3.86 |Q V| | | | 10+20 2.3964 3.90 |Q V| | | | 10+25 2.4234 3.93 |Q V| | | | 10+30 2.4507 3.96 |Q V| | | | 10+35 2.4782 3.99 |Q V| | | | 10+40 2.5059 4.03 |Q V| | | | 10+45 2.5339 4.06 |Q V| | | | 10+50 2.5621 4.10 |Q V | | | 10+55 2.5906 4.13 |Q V | | | 11+ 0 2.6193 4.17 |Q V | | | 11+ 5 2.6483 4.21 |Q V | | | 11+10 2.6776 4.25 |Q V | | | 11+15 2.7071 4.29 |Q V | | | 11+20 2.7369 4.33 |Q V | | | 11+25 2.7670 4.37 |Q V | | | 11+30 2.7974 4.42 |Q V | | | 11+35 2.8282 4.46 |Q |V | | | 11+40 2.8592 4.51 | Q |V | | | 11+45 2.8906 4.55 | Q |V | | | 11+50 2.9223 4.60 | Q |V | | | 11+55 2.9543 4.65 | Q |V | | | 12+ 0 2.9868 4.71 | Q |V | | | 12+ 5 3.0198 4.80 | Q |V | | | 12+10 3.0547 5.06 | Q |V | | | 12+15 3.0909 5.26 | Q | V | | | 12+20 3.1278 5.35 | Q | V | | | 12+25 3.1651 5.42 | Q | V | | | 12+30 3.2029 5.49 | Q | V | | | 12+35 3.2411 5.55 | Q | V | | | 12+40 3.2798 5.62 | Q | V | | | 12+45 3.3190 5.69 | Q | V | | | 12+50 3.3587 5.77 | Q | V | | | 12+55 3.3989 5.84 | Q | V | | | 13+ 0 3.4397 5.92 | Q | V | | | 13+ 5 3.4811 6.00 | Q | V | | | 13+10 3.5230 6.09 | Q | V | | | 13+15 3.5656 6.18 | Q | V | | | 13+20 3.6088 6.28 | Q | V | | | 13+25 3.6527 6.37 | Q | V | | | 13+30 3.6974 6.48 | Q | V | | | 13+35 3.7427 6.58 | Q | V | | | 13+40 3.7889 6.70 | Q | V | | | 13+45 3.8358 6.82 | Q | V | | | 13+50 3.8837 6.95 | Q | V | | | 13+55 3.9324 7.08 | Q | V | | | 14+ 0 3.9821 7.22 | Q | V | | | 14+ 5 4.0329 7.37 | Q | V | | | 14+10 4.0848 7.54 | Q | V | | | 14+15 4.1378 7.70 | Q | V | | | 14+20 4.1922 7.89 | Q | V | | | 14+25 4.2478 8.08 | Q | V | | | 14+30 4.3049 8.29 | Q | V | | | 14+35 4.3635 8.51 | Q | V | | | 14+40 4.4239 8.76 | Q | V | | | 14+45 4.4859 9.01 | Q | V | | | 14+50 4.5501 9.31 | Q | V | | | 14+55 4.6163 9.62 | Q | V | | | 15+ 0 4.6851 9.98 | Q | V | | | 15+ 5 4.7564 10.36 | Q | V | | | 15+10 4.8309 10.81 | Q | V | | | 15+15 4.9086 11.29 | Q | V| | | 15+20 4.9905 11.88 | Q | V| | | 15+25 5.0753 12.31 | Q | V| | | 15+30 5.1586 12.11 | Q | V | | 15+35 5.2432 12.28 | Q | V | | 15+40 5.3351 13.34 | Q | V | | 15+45 5.4370 14.80 | Q | |V | | 15+50 5.5559 17.26 | Q | |V | | 15+55 5.6995 20.85 | Q| | V | | 16+ 0 5.8931 28.12 | | Q | V | | 16+ 5 6.2202 47.49 | | |Q V | | 16+10 6.8293 88.45 | | | V | Q| 16+15 7.2822 65.75 | | | VQ| | 16+20 7.4778 28.41 | | Q | V| | 16+25 7.5968 17.27 | Q | | V| | 16+30 7.6895 13.46 | Q | | V | 16+35 7.7745 12.34 | Q | | V | 16+40 7.8518 11.23 | Q | | V | 16+45 7.9230 10.33 | Q | | V | 16+50 7.9890 9.59 | Q | | |V | 16+55 8.0509 8.99 | Q | | |V | 17+ 0 8.1094 8.48 | Q | | |V | 17+ 5 8.1648 8.05 | Q | | |V | 17+10 8.2177 7.68 | Q | | | V | 17+15 8.2683 7.35 | Q | | | V | 17+20 8.3169 7.06 | Q | | | V | 17+25 8.3637 6.80 | Q | | | V | 17+30 8.4090 6.57 | Q | | | V | 17+35 8.4528 6.36 | Q | | | V | 17+40 8.4952 6.17 | Q | | | V | 17+45 8.5365 5.99 | Q | | | V | 17+50 8.5766 5.83 | Q | | | V | 17+55 8.6157 5.68 | Q | | | V | 18+ 0 8.6539 5.54 | Q | | | V | 18+ 5 8.6908 5.37 | Q | | | V | 18+10 8.7256 5.04 | Q | | | V | 18+15 8.7586 4.79 | Q | | | V | 18+20 8.7906 4.65 | Q | | | V | 18+25 8.8219 4.55 | Q | | | V | 18+30 8.8526 4.45 |Q | | | V | 18+35 8.8826 4.36 |Q | | | V | 18+40 8.9121 4.28 |Q | | | V | 18+45 8.9410 4.20 |Q | | | V | 18+50 8.9695 4.13 |Q | | | V | 18+55 8.9974 4.05 |Q | | | V | 19+ 0 9.0248 3.99 |Q | | | V | 19+ 5 9.0519 3.92 |Q | | | V | 19+10 9.0784 3.86 |Q | | | V | 19+15 9.1046 3.80 |Q | | | V | 19+20 9.1304 3.74 |Q | | | V | 19+25 9.1558 3.69 |Q | | | V | 19+30 9.1808 3.63 |Q | | | V | 19+35 9.2055 3.58 |Q | | | V | 19+40 9.2298 3.54 |Q | | | V | 19+45 9.2538 3.49 |Q | | | V | 19+50 9.2776 3.44 |Q | | | V | 19+55 9.3010 3.40 |Q | | | V | 20+ 0 9.3241 3.36 |Q | | | V | 20+ 5 9.3469 3.32 |Q | | | V | 20+10 9.3695 3.28 |Q | | | V | 20+15 9.3918 3.24 |Q | | | V | 20+20 9.4139 3.20 |Q | | | V | 20+25 9.4357 3.17 |Q | | | V | 20+30 9.4572 3.13 |Q | | | V | 20+35 9.4786 3.10 |Q | | | V | 20+40 9.4997 3.07 |Q | | | V | 20+45 9.5206 3.03 |Q | | | V | 20+50 9.5412 3.00 |Q | | | V | 20+55 9.5617 2.97 |Q | | | V | 21+ 0 9.5820 2.94 |Q | | | V | 21+ 5 9.6021 2.92 |Q | | | V | 21+10 9.6219 2.89 |Q | | | V | 21+15 9.6416 2.86 |Q | | | V | 21+20 9.6612 2.83 |Q | | | V | 21+25 9.6805 2.81 |Q | | | V | 21+30 9.6997 2.78 |Q | | | V | 21+35 9.7187 2.76 |Q | | | V | 21+40 9.7375 2.74 |Q | | | V | 21+45 9.7562 2.71 |Q | | | V | 21+50 9.7747 2.69 |Q | | | V | 21+55 9.7931 2.67 |Q | | | V | 22+ 0 9.8113 2.65 |Q | | | V | 22+ 5 9.8294 2.62 |Q | | | V | 22+10 9.8473 2.60 |Q | | | V | 22+15 9.8651 2.58 |Q | | | V | 22+20 9.8828 2.56 |Q | | | V | 22+25 9.9003 2.54 |Q | | | V | 22+30 9.9177 2.53 |Q | | | V | 22+35 9.9350 2.51 |Q | | | V | 22+40 9.9521 2.49 |Q | | | V | 22+45 9.9691 2.47 |Q | | | V | 22+50 9.9860 2.45 |Q | | | V| 22+55 10.0028 2.44 |Q | | | V| 23+ 0 10.0195 2.42 |Q | | | V| 23+ 5 10.0360 2.40 |Q | | | V| 23+10 10.0524 2.39 |Q | | | V| 23+15 10.0688 2.37 |Q | | | V| 23+20 10.0850 2.35 |Q | | | V| 23+25 10.1011 2.34 |Q | | | V| 23+30 10.1171 2.32 |Q | | | V| 23+35 10.1330 2.31 |Q | | | V| 23+40 10.1488 2.29 |Q | | | V| 23+45 10.1645 2.28 |Q | | | V| 23+50 10.1801 2.27 |Q | | | V| 23+55 10.1956 2.25 |Q | | | V| 24+ 0 10.2111 2.24 Q | | | V| U n i t H y d r o g r a p h A n a l y s i s Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2004, Version 7.0 Study date 01/22/23 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------------------------------------------------ San Bernardino County Synthetic Unit Hydrology Method Manual date - August 1986 Program License Serial Number 6277 --------------------------------------------------------------------- JOB NO 2022-318 11115 HEMLOCK AVENUE 100-YEAR, UNIT HYDROGRAPH POST-CONDITION, AREA B -------------------------------------------------------------------- Storm Event Year = 100 Antecedent Moisture Condition = 3 English (in-lb) Input Units Used English Rainfall Data (Inches) Input Values Used English Units used in output format Area averaged rainfall intensity isohyetal data: Sub-Area Duration Isohyetal (Ac.) (hours) (In) Rainfall data for year 100 12.94 1 1.33 -------------------------------------------------------------------- Rainfall data for year 100 12.94 6 3.11 -------------------------------------------------------------------- Rainfall data for year 100 12.94 24 5.69 -------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ******** Area-averaged max loss rate, Fm ******** SCS curve SCS curve Area Area Fp(Fig C6) Ap Fm No.(AMCII) NO.(AMC 3) (Ac.) Fraction (In/Hr) (dec.) (In/Hr) 32.0 52.0 12.94 1.000 0.785 0.090 0.071 Area-averaged adjusted loss rate Fm (In/Hr) = 0.071 ********* Area-Averaged low loss rate fraction, Yb ********** Area Area SCS CN SCS CN S Pervious (Ac.) Fract (AMC2) (AMC3) Yield Fr 1.16 0.090 32.0 52.0 9.23 0.199 11.78 0.910 98.0 98.0 0.20 0.958 Area-averaged catchment yield fraction, Y = 0.890 Area-averaged low loss fraction, Yb = 0.110 User entry of time of concentration = 0.134 (hours) ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Watershed area = 12.94(Ac.) Catchment Lag time = 0.107 hours Unit interval = 5.000 minutes Unit interval percentage of lag time = 77.5819 Hydrograph baseflow = 0.00(CFS) Average maximum watershed loss rate(Fm) = 0.071(In/Hr) Average low loss rate fraction (Yb) = 0.110 (decimal) VALLEY DEVELOPED S-Graph Selected Computed peak 5-minute rainfall = 0.492(In) Computed peak 30-minute rainfall = 1.008(In) Specified peak 1-hour rainfall = 1.330(In) Computed peak 3-hour rainfall = 2.239(In) Specified peak 6-hour rainfall = 3.110(In) Specified peak 24-hour rainfall = 5.690(In) Rainfall depth area reduction factors: Using a total area of 12.94(Ac.) (Ref: fig. E-4) 5-minute factor = 0.999 Adjusted rainfall = 0.492(In) 30-minute factor = 0.999 Adjusted rainfall = 1.007(In) 1-hour factor = 0.999 Adjusted rainfall = 1.329(In) 3-hour factor = 1.000 Adjusted rainfall = 2.239(In) 6-hour factor = 1.000 Adjusted rainfall = 3.110(In) 24-hour factor = 1.000 Adjusted rainfall = 5.690(In) --------------------------------------------------------------------- U n i t H y d r o g r a p h +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Interval 'S' Graph Unit Hydrograph Number Mean values ((CFS)) --------------------------------------------------------------------- (K = 156.49 (CFS)) 1 10.670 16.699 2 61.392 79.375 3 93.099 49.620 4 98.677 8.729 5 100.000 2.071 --------------------------------------------------------------------- Peak Unit Adjusted mass rainfall Unit rainfall Number (In) (In) 1 0.4919 0.4919 2 0.6491 0.1572 3 0.7634 0.1143 4 0.8565 0.0931 5 0.9365 0.0800 6 1.0073 0.0708 7 1.0714 0.0641 8 1.1302 0.0588 9 1.1847 0.0545 10 1.2357 0.0510 11 1.2837 0.0480 12 1.3292 0.0455 13 1.3807 0.0515 14 1.4301 0.0494 15 1.4777 0.0476 16 1.5236 0.0460 17 1.5681 0.0445 18 1.6112 0.0431 19 1.6531 0.0419 20 1.6938 0.0407 21 1.7335 0.0397 22 1.7722 0.0387 23 1.8100 0.0378 24 1.8469 0.0369 25 1.8830 0.0361 26 1.9184 0.0354 27 1.9531 0.0347 28 1.9871 0.0340 29 2.0205 0.0334 30 2.0532 0.0328 31 2.0854 0.0322 32 2.1171 0.0317 33 2.1482 0.0311 34 2.1789 0.0307 35 2.2091 0.0302 36 2.2388 0.0297 37 2.2681 0.0293 38 2.2969 0.0289 39 2.3254 0.0285 40 2.3535 0.0281 41 2.3812 0.0277 42 2.4085 0.0274 43 2.4356 0.0270 44 2.4623 0.0267 45 2.4886 0.0264 46 2.5147 0.0261 47 2.5405 0.0258 48 2.5660 0.0255 49 2.5912 0.0252 50 2.6161 0.0249 51 2.6408 0.0247 52 2.6652 0.0244 53 2.6894 0.0242 54 2.7133 0.0239 55 2.7371 0.0237 56 2.7605 0.0235 57 2.7838 0.0233 58 2.8069 0.0231 59 2.8297 0.0228 60 2.8523 0.0226 61 2.8748 0.0224 62 2.8970 0.0222 63 2.9191 0.0221 64 2.9410 0.0219 65 2.9627 0.0217 66 2.9842 0.0215 67 3.0055 0.0214 68 3.0267 0.0212 69 3.0477 0.0210 70 3.0686 0.0209 71 3.0893 0.0207 72 3.1099 0.0206 73 3.1286 0.0187 74 3.1472 0.0186 75 3.1657 0.0185 76 3.1840 0.0183 77 3.2022 0.0182 78 3.2203 0.0181 79 3.2382 0.0179 80 3.2560 0.0178 81 3.2737 0.0177 82 3.2912 0.0176 83 3.3086 0.0174 84 3.3260 0.0173 85 3.3432 0.0172 86 3.3602 0.0171 87 3.3772 0.0170 88 3.3941 0.0169 89 3.4108 0.0168 90 3.4275 0.0166 91 3.4440 0.0165 92 3.4605 0.0164 93 3.4768 0.0163 94 3.4930 0.0162 95 3.5092 0.0161 96 3.5252 0.0160 97 3.5412 0.0160 98 3.5571 0.0159 99 3.5728 0.0158 100 3.5885 0.0157 101 3.6041 0.0156 102 3.6196 0.0155 103 3.6350 0.0154 104 3.6504 0.0153 105 3.6656 0.0153 106 3.6808 0.0152 107 3.6959 0.0151 108 3.7109 0.0150 109 3.7258 0.0149 110 3.7407 0.0149 111 3.7555 0.0148 112 3.7702 0.0147 113 3.7848 0.0146 114 3.7994 0.0146 115 3.8139 0.0145 116 3.8283 0.0144 117 3.8426 0.0143 118 3.8569 0.0143 119 3.8711 0.0142 120 3.8852 0.0141 121 3.8993 0.0141 122 3.9133 0.0140 123 3.9273 0.0139 124 3.9412 0.0139 125 3.9550 0.0138 126 3.9687 0.0138 127 3.9824 0.0137 128 3.9961 0.0136 129 4.0096 0.0136 130 4.0232 0.0135 131 4.0366 0.0135 132 4.0500 0.0134 133 4.0634 0.0133 134 4.0766 0.0133 135 4.0899 0.0132 136 4.1030 0.0132 137 4.1162 0.0131 138 4.1292 0.0131 139 4.1422 0.0130 140 4.1552 0.0130 141 4.1681 0.0129 142 4.1810 0.0129 143 4.1938 0.0128 144 4.2065 0.0128 145 4.2192 0.0127 146 4.2319 0.0127 147 4.2445 0.0126 148 4.2571 0.0126 149 4.2696 0.0125 150 4.2820 0.0125 151 4.2944 0.0124 152 4.3068 0.0124 153 4.3191 0.0123 154 4.3314 0.0123 155 4.3437 0.0122 156 4.3558 0.0122 157 4.3680 0.0121 158 4.3801 0.0121 159 4.3922 0.0121 160 4.4042 0.0120 161 4.4161 0.0120 162 4.4281 0.0119 163 4.4400 0.0119 164 4.4518 0.0118 165 4.4636 0.0118 166 4.4754 0.0118 167 4.4871 0.0117 168 4.4988 0.0117 169 4.5105 0.0116 170 4.5221 0.0116 171 4.5336 0.0116 172 4.5452 0.0115 173 4.5567 0.0115 174 4.5681 0.0115 175 4.5796 0.0114 176 4.5909 0.0114 177 4.6023 0.0113 178 4.6136 0.0113 179 4.6249 0.0113 180 4.6361 0.0112 181 4.6473 0.0112 182 4.6585 0.0112 183 4.6696 0.0111 184 4.6807 0.0111 185 4.6918 0.0111 186 4.7028 0.0110 187 4.7138 0.0110 188 4.7248 0.0110 189 4.7357 0.0109 190 4.7467 0.0109 191 4.7575 0.0109 192 4.7684 0.0108 193 4.7792 0.0108 194 4.7899 0.0108 195 4.8007 0.0107 196 4.8114 0.0107 197 4.8221 0.0107 198 4.8327 0.0107 199 4.8434 0.0106 200 4.8539 0.0106 201 4.8645 0.0106 202 4.8750 0.0105 203 4.8855 0.0105 204 4.8960 0.0105 205 4.9065 0.0104 206 4.9169 0.0104 207 4.9273 0.0104 208 4.9376 0.0104 209 4.9479 0.0103 210 4.9583 0.0103 211 4.9685 0.0103 212 4.9788 0.0102 213 4.9890 0.0102 214 4.9992 0.0102 215 5.0094 0.0102 216 5.0195 0.0101 217 5.0296 0.0101 218 5.0397 0.0101 219 5.0498 0.0101 220 5.0598 0.0100 221 5.0698 0.0100 222 5.0798 0.0100 223 5.0897 0.0100 224 5.0997 0.0099 225 5.1096 0.0099 226 5.1195 0.0099 227 5.1293 0.0099 228 5.1392 0.0098 229 5.1490 0.0098 230 5.1588 0.0098 231 5.1685 0.0098 232 5.1783 0.0097 233 5.1880 0.0097 234 5.1977 0.0097 235 5.2073 0.0097 236 5.2170 0.0096 237 5.2266 0.0096 238 5.2362 0.0096 239 5.2458 0.0096 240 5.2553 0.0096 241 5.2649 0.0095 242 5.2744 0.0095 243 5.2839 0.0095 244 5.2933 0.0095 245 5.3028 0.0094 246 5.3122 0.0094 247 5.3216 0.0094 248 5.3310 0.0094 249 5.3403 0.0094 250 5.3497 0.0093 251 5.3590 0.0093 252 5.3683 0.0093 253 5.3775 0.0093 254 5.3868 0.0093 255 5.3960 0.0092 256 5.4052 0.0092 257 5.4144 0.0092 258 5.4236 0.0092 259 5.4327 0.0092 260 5.4419 0.0091 261 5.4510 0.0091 262 5.4601 0.0091 263 5.4691 0.0091 264 5.4782 0.0091 265 5.4872 0.0090 266 5.4962 0.0090 267 5.5052 0.0090 268 5.5142 0.0090 269 5.5232 0.0090 270 5.5321 0.0089 271 5.5410 0.0089 272 5.5499 0.0089 273 5.5588 0.0089 274 5.5677 0.0089 275 5.5765 0.0088 276 5.5854 0.0088 277 5.5942 0.0088 278 5.6030 0.0088 279 5.6117 0.0088 280 5.6205 0.0088 281 5.6292 0.0087 282 5.6379 0.0087 283 5.6466 0.0087 284 5.6553 0.0087 285 5.6640 0.0087 286 5.6727 0.0087 287 5.6813 0.0086 288 5.6899 0.0086 --------------------------------------------------------------------- Unit Unit Unit Effective Period Rainfall Soil-Loss Rainfall (number) (In) (In) (In) --------------------------------------------------------------------- 1 0.0086 0.0009 0.0077 2 0.0086 0.0010 0.0077 3 0.0087 0.0010 0.0077 4 0.0087 0.0010 0.0077 5 0.0087 0.0010 0.0078 6 0.0087 0.0010 0.0078 7 0.0088 0.0010 0.0078 8 0.0088 0.0010 0.0078 9 0.0088 0.0010 0.0079 10 0.0088 0.0010 0.0079 11 0.0089 0.0010 0.0079 12 0.0089 0.0010 0.0079 13 0.0089 0.0010 0.0080 14 0.0090 0.0010 0.0080 15 0.0090 0.0010 0.0080 16 0.0090 0.0010 0.0080 17 0.0091 0.0010 0.0081 18 0.0091 0.0010 0.0081 19 0.0091 0.0010 0.0081 20 0.0091 0.0010 0.0081 21 0.0092 0.0010 0.0082 22 0.0092 0.0010 0.0082 23 0.0092 0.0010 0.0082 24 0.0093 0.0010 0.0082 25 0.0093 0.0010 0.0083 26 0.0093 0.0010 0.0083 27 0.0094 0.0010 0.0083 28 0.0094 0.0010 0.0083 29 0.0094 0.0010 0.0084 30 0.0094 0.0010 0.0084 31 0.0095 0.0010 0.0084 32 0.0095 0.0010 0.0085 33 0.0096 0.0011 0.0085 34 0.0096 0.0011 0.0085 35 0.0096 0.0011 0.0086 36 0.0096 0.0011 0.0086 37 0.0097 0.0011 0.0086 38 0.0097 0.0011 0.0086 39 0.0098 0.0011 0.0087 40 0.0098 0.0011 0.0087 41 0.0098 0.0011 0.0088 42 0.0099 0.0011 0.0088 43 0.0099 0.0011 0.0088 44 0.0099 0.0011 0.0088 45 0.0100 0.0011 0.0089 46 0.0100 0.0011 0.0089 47 0.0101 0.0011 0.0090 48 0.0101 0.0011 0.0090 49 0.0101 0.0011 0.0090 50 0.0102 0.0011 0.0090 51 0.0102 0.0011 0.0091 52 0.0102 0.0011 0.0091 53 0.0103 0.0011 0.0092 54 0.0103 0.0011 0.0092 55 0.0104 0.0011 0.0092 56 0.0104 0.0011 0.0093 57 0.0105 0.0012 0.0093 58 0.0105 0.0012 0.0093 59 0.0106 0.0012 0.0094 60 0.0106 0.0012 0.0094 61 0.0107 0.0012 0.0095 62 0.0107 0.0012 0.0095 63 0.0107 0.0012 0.0096 64 0.0108 0.0012 0.0096 65 0.0108 0.0012 0.0096 66 0.0109 0.0012 0.0097 67 0.0109 0.0012 0.0097 68 0.0110 0.0012 0.0098 69 0.0110 0.0012 0.0098 70 0.0111 0.0012 0.0098 71 0.0111 0.0012 0.0099 72 0.0112 0.0012 0.0099 73 0.0112 0.0012 0.0100 74 0.0113 0.0012 0.0100 75 0.0113 0.0013 0.0101 76 0.0114 0.0013 0.0101 77 0.0115 0.0013 0.0102 78 0.0115 0.0013 0.0102 79 0.0116 0.0013 0.0103 80 0.0116 0.0013 0.0103 81 0.0117 0.0013 0.0104 82 0.0117 0.0013 0.0104 83 0.0118 0.0013 0.0105 84 0.0118 0.0013 0.0105 85 0.0119 0.0013 0.0106 86 0.0120 0.0013 0.0107 87 0.0121 0.0013 0.0107 88 0.0121 0.0013 0.0108 89 0.0122 0.0013 0.0108 90 0.0122 0.0013 0.0109 91 0.0123 0.0014 0.0110 92 0.0124 0.0014 0.0110 93 0.0125 0.0014 0.0111 94 0.0125 0.0014 0.0111 95 0.0126 0.0014 0.0112 96 0.0127 0.0014 0.0113 97 0.0128 0.0014 0.0113 98 0.0128 0.0014 0.0114 99 0.0129 0.0014 0.0115 100 0.0130 0.0014 0.0115 101 0.0131 0.0014 0.0116 102 0.0131 0.0014 0.0117 103 0.0132 0.0015 0.0118 104 0.0133 0.0015 0.0118 105 0.0134 0.0015 0.0119 106 0.0135 0.0015 0.0120 107 0.0136 0.0015 0.0121 108 0.0136 0.0015 0.0121 109 0.0138 0.0015 0.0122 110 0.0138 0.0015 0.0123 111 0.0139 0.0015 0.0124 112 0.0140 0.0015 0.0125 113 0.0141 0.0016 0.0126 114 0.0142 0.0016 0.0126 115 0.0143 0.0016 0.0128 116 0.0144 0.0016 0.0128 117 0.0146 0.0016 0.0130 118 0.0146 0.0016 0.0130 119 0.0148 0.0016 0.0132 120 0.0149 0.0016 0.0132 121 0.0150 0.0017 0.0134 122 0.0151 0.0017 0.0134 123 0.0153 0.0017 0.0136 124 0.0153 0.0017 0.0136 125 0.0155 0.0017 0.0138 126 0.0156 0.0017 0.0139 127 0.0158 0.0017 0.0140 128 0.0159 0.0017 0.0141 129 0.0160 0.0018 0.0143 130 0.0161 0.0018 0.0144 131 0.0163 0.0018 0.0145 132 0.0164 0.0018 0.0146 133 0.0166 0.0018 0.0148 134 0.0168 0.0018 0.0149 135 0.0170 0.0019 0.0151 136 0.0171 0.0019 0.0152 137 0.0173 0.0019 0.0154 138 0.0174 0.0019 0.0155 139 0.0177 0.0019 0.0157 140 0.0178 0.0020 0.0158 141 0.0181 0.0020 0.0161 142 0.0182 0.0020 0.0162 143 0.0185 0.0020 0.0164 144 0.0186 0.0020 0.0166 145 0.0206 0.0023 0.0183 146 0.0207 0.0023 0.0184 147 0.0210 0.0023 0.0187 148 0.0212 0.0023 0.0189 149 0.0215 0.0024 0.0192 150 0.0217 0.0024 0.0193 151 0.0221 0.0024 0.0196 152 0.0222 0.0025 0.0198 153 0.0226 0.0025 0.0201 154 0.0228 0.0025 0.0203 155 0.0233 0.0026 0.0207 156 0.0235 0.0026 0.0209 157 0.0239 0.0026 0.0213 158 0.0242 0.0027 0.0215 159 0.0247 0.0027 0.0220 160 0.0249 0.0027 0.0222 161 0.0255 0.0028 0.0227 162 0.0258 0.0028 0.0229 163 0.0264 0.0029 0.0235 164 0.0267 0.0029 0.0238 165 0.0274 0.0030 0.0243 166 0.0277 0.0031 0.0247 167 0.0285 0.0031 0.0253 168 0.0289 0.0032 0.0257 169 0.0297 0.0033 0.0265 170 0.0302 0.0033 0.0269 171 0.0311 0.0034 0.0277 172 0.0317 0.0035 0.0282 173 0.0328 0.0036 0.0292 174 0.0334 0.0037 0.0297 175 0.0347 0.0038 0.0309 176 0.0354 0.0039 0.0315 177 0.0369 0.0041 0.0329 178 0.0378 0.0042 0.0336 179 0.0397 0.0044 0.0353 180 0.0407 0.0045 0.0362 181 0.0431 0.0047 0.0384 182 0.0445 0.0049 0.0396 183 0.0476 0.0052 0.0424 184 0.0494 0.0054 0.0440 185 0.0455 0.0050 0.0405 186 0.0480 0.0053 0.0427 187 0.0545 0.0059 0.0486 188 0.0588 0.0059 0.0529 189 0.0708 0.0059 0.0650 190 0.0800 0.0059 0.0741 191 0.1143 0.0059 0.1084 192 0.1572 0.0059 0.1513 193 0.4919 0.0059 0.4861 194 0.0931 0.0059 0.0872 195 0.0641 0.0059 0.0582 196 0.0510 0.0056 0.0454 197 0.0515 0.0057 0.0458 198 0.0460 0.0051 0.0409 199 0.0419 0.0046 0.0373 200 0.0387 0.0043 0.0344 201 0.0361 0.0040 0.0321 202 0.0340 0.0037 0.0303 203 0.0322 0.0035 0.0287 204 0.0307 0.0034 0.0273 205 0.0293 0.0032 0.0260 206 0.0281 0.0031 0.0250 207 0.0270 0.0030 0.0240 208 0.0261 0.0029 0.0232 209 0.0252 0.0028 0.0224 210 0.0244 0.0027 0.0217 211 0.0237 0.0026 0.0211 212 0.0231 0.0025 0.0205 213 0.0224 0.0025 0.0200 214 0.0219 0.0024 0.0195 215 0.0214 0.0024 0.0190 216 0.0209 0.0023 0.0186 217 0.0187 0.0021 0.0167 218 0.0183 0.0020 0.0163 219 0.0179 0.0020 0.0160 220 0.0176 0.0019 0.0156 221 0.0172 0.0019 0.0153 222 0.0169 0.0019 0.0150 223 0.0165 0.0018 0.0147 224 0.0162 0.0018 0.0145 225 0.0160 0.0018 0.0142 226 0.0157 0.0017 0.0140 227 0.0154 0.0017 0.0137 228 0.0152 0.0017 0.0135 229 0.0149 0.0016 0.0133 230 0.0147 0.0016 0.0131 231 0.0145 0.0016 0.0129 232 0.0143 0.0016 0.0127 233 0.0141 0.0016 0.0125 234 0.0139 0.0015 0.0124 235 0.0137 0.0015 0.0122 236 0.0135 0.0015 0.0120 237 0.0133 0.0015 0.0119 238 0.0132 0.0015 0.0117 239 0.0130 0.0014 0.0116 240 0.0129 0.0014 0.0114 241 0.0127 0.0014 0.0113 242 0.0126 0.0014 0.0112 243 0.0124 0.0014 0.0110 244 0.0123 0.0014 0.0109 245 0.0121 0.0013 0.0108 246 0.0120 0.0013 0.0107 247 0.0119 0.0013 0.0106 248 0.0118 0.0013 0.0105 249 0.0116 0.0013 0.0104 250 0.0115 0.0013 0.0103 251 0.0114 0.0013 0.0102 252 0.0113 0.0012 0.0101 253 0.0112 0.0012 0.0100 254 0.0111 0.0012 0.0099 255 0.0110 0.0012 0.0098 256 0.0109 0.0012 0.0097 257 0.0108 0.0012 0.0096 258 0.0107 0.0012 0.0095 259 0.0106 0.0012 0.0095 260 0.0105 0.0012 0.0094 261 0.0104 0.0012 0.0093 262 0.0104 0.0011 0.0092 263 0.0103 0.0011 0.0091 264 0.0102 0.0011 0.0091 265 0.0101 0.0011 0.0090 266 0.0100 0.0011 0.0089 267 0.0100 0.0011 0.0089 268 0.0099 0.0011 0.0088 269 0.0098 0.0011 0.0087 270 0.0097 0.0011 0.0087 271 0.0097 0.0011 0.0086 272 0.0096 0.0011 0.0085 273 0.0095 0.0010 0.0085 274 0.0095 0.0010 0.0084 275 0.0094 0.0010 0.0084 276 0.0093 0.0010 0.0083 277 0.0093 0.0010 0.0083 278 0.0092 0.0010 0.0082 279 0.0092 0.0010 0.0081 280 0.0091 0.0010 0.0081 281 0.0090 0.0010 0.0080 282 0.0090 0.0010 0.0080 283 0.0089 0.0010 0.0079 284 0.0089 0.0010 0.0079 285 0.0088 0.0010 0.0078 286 0.0088 0.0010 0.0078 287 0.0087 0.0010 0.0077 288 0.0087 0.0010 0.0077 -------------------------------------------------------------------- -------------------------------------------------------------------- Total soil rain loss = 0.55(In) Total effective rainfall = 5.14(In) Peak flow rate in flood hydrograph = 48.64(CFS) --------------------------------------------------------------------- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 24 - H O U R S T O R M R u n o f f H y d r o g r a p h -------------------------------------------------------------------- Hydrograph in 5 Minute intervals ((CFS)) -------------------------------------------------------------------- Time(h+m) Volume Ac.Ft Q(CFS) 0 12.5 25.0 37.5 50.0 ----------------------------------------------------------------------- 0+ 5 0.0009 0.13 Q | | | | 0+10 0.0060 0.74 Q | | | | 0+15 0.0137 1.12 Q | | | | 0+20 0.0219 1.19 Q | | | | 0+25 0.0302 1.21 Q | | | | 0+30 0.0385 1.21 Q | | | | 0+35 0.0469 1.22 Q | | | | 0+40 0.0553 1.22 Q | | | | 0+45 0.0637 1.22 Q | | | | 0+50 0.0722 1.23 Q | | | | 0+55 0.0807 1.23 Q | | | | 1+ 0 0.0892 1.23 Q | | | | 1+ 5 0.0977 1.24 Q | | | | 1+10 0.1063 1.24 Q | | | | 1+15 0.1148 1.25 Q | | | | 1+20 0.1235 1.25 VQ | | | | 1+25 0.1321 1.25 VQ | | | | 1+30 0.1408 1.26 |Q | | | | 1+35 0.1495 1.26 |Q | | | | 1+40 0.1582 1.27 |Q | | | | 1+45 0.1669 1.27 |Q | | | | 1+50 0.1757 1.27 |Q | | | | 1+55 0.1845 1.28 |Q | | | | 2+ 0 0.1934 1.28 |Q | | | | 2+ 5 0.2022 1.29 |Q | | | | 2+10 0.2111 1.29 |Q | | | | 2+15 0.2201 1.30 |Q | | | | 2+20 0.2290 1.30 |Q | | | | 2+25 0.2380 1.30 |Q | | | | 2+30 0.2470 1.31 |Q | | | | 2+35 0.2561 1.31 |Q | | | | 2+40 0.2652 1.32 |Q | | | | 2+45 0.2743 1.32 |Q | | | | 2+50 0.2834 1.33 |QV | | | | 2+55 0.2926 1.33 |QV | | | | 3+ 0 0.3018 1.34 |QV | | | | 3+ 5 0.3110 1.34 |QV | | | | 3+10 0.3203 1.35 |QV | | | | 3+15 0.3296 1.35 |QV | | | | 3+20 0.3390 1.36 |QV | | | | 3+25 0.3484 1.36 |QV | | | | 3+30 0.3578 1.37 |QV | | | | 3+35 0.3672 1.37 |QV | | | | 3+40 0.3767 1.38 |QV | | | | 3+45 0.3862 1.38 |QV | | | | 3+50 0.3958 1.39 |QV | | | | 3+55 0.4054 1.39 |QV | | | | 4+ 0 0.4150 1.40 |QV | | | | 4+ 5 0.4247 1.40 |Q V | | | | 4+10 0.4344 1.41 |Q V | | | | 4+15 0.4441 1.41 |Q V | | | | 4+20 0.4539 1.42 |Q V | | | | 4+25 0.4637 1.43 |Q V | | | | 4+30 0.4736 1.43 |Q V | | | | 4+35 0.4835 1.44 |Q V | | | | 4+40 0.4934 1.44 |Q V | | | | 4+45 0.5034 1.45 |Q V | | | | 4+50 0.5134 1.46 |Q V | | | | 4+55 0.5235 1.46 |Q V | | | | 5+ 0 0.5336 1.47 |Q V | | | | 5+ 5 0.5437 1.47 |Q V | | | | 5+10 0.5539 1.48 |Q V | | | | 5+15 0.5642 1.49 |Q V | | | | 5+20 0.5744 1.49 |Q V | | | | 5+25 0.5848 1.50 |Q V | | | | 5+30 0.5951 1.51 |Q V | | | | 5+35 0.6056 1.51 |Q V | | | | 5+40 0.6160 1.52 |Q V | | | | 5+45 0.6265 1.53 |Q V | | | | 5+50 0.6371 1.53 |Q V | | | | 5+55 0.6477 1.54 |Q V | | | | 6+ 0 0.6584 1.55 |Q V | | | | 6+ 5 0.6691 1.55 |Q V | | | | 6+10 0.6798 1.56 |Q V | | | | 6+15 0.6906 1.57 |Q V | | | | 6+20 0.7015 1.58 |Q V | | | | 6+25 0.7124 1.58 |Q V | | | | 6+30 0.7233 1.59 |Q V | | | | 6+35 0.7344 1.60 |Q V | | | | 6+40 0.7454 1.61 |Q V | | | | 6+45 0.7566 1.62 |Q V | | | | 6+50 0.7677 1.62 |Q V | | | | 6+55 0.7790 1.63 |Q V | | | | 7+ 0 0.7903 1.64 |Q V | | | | 7+ 5 0.8016 1.65 |Q V | | | | 7+10 0.8130 1.66 |Q V | | | | 7+15 0.8245 1.67 |Q V | | | | 7+20 0.8360 1.67 |Q V | | | | 7+25 0.8476 1.68 |Q V | | | | 7+30 0.8593 1.69 |Q V | | | | 7+35 0.8710 1.70 |Q V | | | | 7+40 0.8828 1.71 |Q V | | | | 7+45 0.8947 1.72 |Q V | | | | 7+50 0.9066 1.73 |Q V | | | | 7+55 0.9186 1.74 |Q V | | | | 8+ 0 0.9306 1.75 |Q V | | | | 8+ 5 0.9427 1.76 |Q V | | | | 8+10 0.9549 1.77 |Q V | | | | 8+15 0.9672 1.78 |Q V | | | | 8+20 0.9795 1.79 |Q V | | | | 8+25 0.9920 1.80 |Q V | | | | 8+30 1.0044 1.81 |Q V | | | | 8+35 1.0170 1.82 |Q V | | | | 8+40 1.0297 1.84 |Q V | | | | 8+45 1.0424 1.85 |Q V | | | | 8+50 1.0552 1.86 |Q V | | | | 8+55 1.0681 1.87 |Q V | | | | 9+ 0 1.0811 1.88 |Q V | | | | 9+ 5 1.0941 1.90 |Q V | | | | 9+10 1.1073 1.91 |Q V | | | | 9+15 1.1205 1.92 |Q V | | | | 9+20 1.1338 1.94 |Q V | | | | 9+25 1.1472 1.95 |Q V | | | | 9+30 1.1608 1.96 |Q V | | | | 9+35 1.1744 1.98 |Q V | | | | 9+40 1.1881 1.99 |Q V | | | | 9+45 1.2019 2.00 |Q V | | | | 9+50 1.2158 2.02 |Q V | | | | 9+55 1.2298 2.03 |Q V | | | | 10+ 0 1.2439 2.05 |Q V | | | | 10+ 5 1.2582 2.07 |Q V| | | | 10+10 1.2725 2.08 |Q V| | | | 10+15 1.2869 2.10 |Q V| | | | 10+20 1.3015 2.12 |Q V| | | | 10+25 1.3162 2.13 |Q V| | | | 10+30 1.3310 2.15 |Q V| | | | 10+35 1.3459 2.17 |Q V| | | | 10+40 1.3610 2.19 |Q V| | | | 10+45 1.3762 2.20 |Q V| | | | 10+50 1.3915 2.23 |Q V | | | 10+55 1.4070 2.24 |Q V | | | 11+ 0 1.4226 2.27 |Q V | | | 11+ 5 1.4383 2.29 |Q V | | | 11+10 1.4542 2.31 |Q V | | | 11+15 1.4702 2.33 |Q V | | | 11+20 1.4864 2.35 |Q V | | | 11+25 1.5028 2.37 |Q V | | | 11+30 1.5193 2.40 |Q V | | | 11+35 1.5360 2.42 |Q |V | | | 11+40 1.5528 2.45 |Q |V | | | 11+45 1.5699 2.47 |Q |V | | | 11+50 1.5871 2.50 | Q |V | | | 11+55 1.6045 2.53 | Q |V | | | 12+ 0 1.6221 2.56 | Q |V | | | 12+ 5 1.6401 2.61 | Q |V | | | 12+10 1.6591 2.76 | Q |V | | | 12+15 1.6788 2.86 | Q | V | | | 12+20 1.6988 2.91 | Q | V | | | 12+25 1.7191 2.94 | Q | V | | | 12+30 1.7396 2.98 | Q | V | | | 12+35 1.7604 3.01 | Q | V | | | 12+40 1.7814 3.05 | Q | V | | | 12+45 1.8027 3.09 | Q | V | | | 12+50 1.8242 3.13 | Q | V | | | 12+55 1.8461 3.17 | Q | V | | | 13+ 0 1.8682 3.22 | Q | V | | | 13+ 5 1.8907 3.26 | Q | V | | | 13+10 1.9135 3.31 | Q | V | | | 13+15 1.9366 3.36 | Q | V | | | 13+20 1.9601 3.41 | Q | V | | | 13+25 1.9840 3.46 | Q | V | | | 13+30 2.0082 3.52 | Q | V | | | 13+35 2.0328 3.58 | Q | V | | | 13+40 2.0579 3.64 | Q | V | | | 13+45 2.0834 3.70 | Q | V | | | 13+50 2.1094 3.78 | Q | V | | | 13+55 2.1359 3.84 | Q | V | | | 14+ 0 2.1629 3.92 | Q | V | | | 14+ 5 2.1905 4.00 | Q | V | | | 14+10 2.2187 4.09 | Q | V | | | 14+15 2.2475 4.18 | Q | V | | | 14+20 2.2770 4.29 | Q | V | | | 14+25 2.3073 4.39 | Q | V | | | 14+30 2.3383 4.51 | Q | V | | | 14+35 2.3701 4.62 | Q | V | | | 14+40 2.4029 4.76 | Q | V | | | 14+45 2.4366 4.90 | Q | V | | | 14+50 2.4715 5.06 | Q | V | | | 14+55 2.5075 5.23 | Q | V | | | 15+ 0 2.5449 5.43 | Q | V | | | 15+ 5 2.5837 5.63 | Q | V | | | 15+10 2.6242 5.88 | Q | V | | | 15+15 2.6665 6.14 | Q | V| | | 15+20 2.7110 6.47 | Q | V| | | 15+25 2.7571 6.69 | Q | V| | | 15+30 2.8023 6.56 | Q | V | | 15+35 2.8483 6.68 | Q | V | | 15+40 2.8987 7.31 | Q | V | | 15+45 2.9548 8.15 | Q | |V | | 15+50 3.0204 9.53 | Q | |V | | 15+55 3.0995 11.48 | Q| | V | | 16+ 0 3.2061 15.48 | | Q | V | | 16+ 5 3.3871 26.29 | | |Q V | | 16+10 3.7222 48.64 | | | V | Q | 16+15 3.9533 33.56 | | | Q V | | 16+20 4.0515 14.26 | |Q | V| | 16+25 4.1136 9.02 | Q | | V| | 16+30 4.1636 7.26 | Q | | V | 16+35 4.2094 6.66 | Q | | V | 16+40 4.2511 6.06 | Q | | V | 16+45 4.2895 5.57 | Q | | V | 16+50 4.3252 5.18 | Q | | |V | 16+55 4.3586 4.85 | Q | | |V | 17+ 0 4.3901 4.58 | Q | | |V | 17+ 5 4.4201 4.35 | Q | | |V | 17+10 4.4487 4.15 | Q | | | V | 17+15 4.4761 3.97 | Q | | | V | 17+20 4.5024 3.82 | Q | | | V | 17+25 4.5277 3.68 | Q | | | V | 17+30 4.5522 3.56 | Q | | | V | 17+35 4.5759 3.44 | Q | | | V | 17+40 4.5989 3.34 | Q | | | V | 17+45 4.6213 3.24 | Q | | | V | 17+50 4.6430 3.16 | Q | | | V | 17+55 4.6642 3.08 | Q | | | V | 18+ 0 4.6849 3.00 | Q | | | V | 18+ 5 4.7049 2.91 | Q | | | V | 18+10 4.7237 2.72 | Q | | | V | 18+15 4.7415 2.59 | Q | | | V | 18+20 4.7589 2.52 | Q | | | V | 18+25 4.7758 2.46 |Q | | | V | 18+30 4.7924 2.41 |Q | | | V | 18+35 4.8087 2.37 |Q | | | V | 18+40 4.8247 2.32 |Q | | | V | 18+45 4.8404 2.28 |Q | | | V | 18+50 4.8558 2.24 |Q | | | V | 18+55 4.8709 2.20 |Q | | | V | 19+ 0 4.8858 2.16 |Q | | | V | 19+ 5 4.9005 2.13 |Q | | | V | 19+10 4.9149 2.09 |Q | | | V | 19+15 4.9291 2.06 |Q | | | V | 19+20 4.9430 2.03 |Q | | | V | 19+25 4.9568 2.00 |Q | | | V | 19+30 4.9704 1.97 |Q | | | V | 19+35 4.9837 1.94 |Q | | | V | 19+40 4.9969 1.92 |Q | | | V | 19+45 5.0100 1.89 |Q | | | V | 19+50 5.0228 1.87 |Q | | | V | 19+55 5.0355 1.84 |Q | | | V | 20+ 0 5.0481 1.82 |Q | | | V | 20+ 5 5.0604 1.80 |Q | | | V | 20+10 5.0727 1.78 |Q | | | V | 20+15 5.0848 1.76 |Q | | | V | 20+20 5.0967 1.74 |Q | | | V | 20+25 5.1086 1.72 |Q | | | V | 20+30 5.1203 1.70 |Q | | | V | 20+35 5.1318 1.68 |Q | | | V | 20+40 5.1433 1.66 |Q | | | V | 20+45 5.1546 1.65 |Q | | | V | 20+50 5.1658 1.63 |Q | | | V | 20+55 5.1769 1.61 |Q | | | V | 21+ 0 5.1879 1.60 |Q | | | V | 21+ 5 5.1988 1.58 |Q | | | V | 21+10 5.2096 1.57 |Q | | | V | 21+15 5.2203 1.55 |Q | | | V | 21+20 5.2309 1.54 |Q | | | V | 21+25 5.2414 1.52 |Q | | | V | 21+30 5.2518 1.51 |Q | | | V | 21+35 5.2621 1.50 |Q | | | V | 21+40 5.2723 1.48 |Q | | | V | 21+45 5.2824 1.47 |Q | | | V | 21+50 5.2925 1.46 |Q | | | V | 21+55 5.3024 1.45 |Q | | | V | 22+ 0 5.3123 1.44 |Q | | | V | 22+ 5 5.3221 1.42 |Q | | | V | 22+10 5.3318 1.41 |Q | | | V | 22+15 5.3415 1.40 |Q | | | V | 22+20 5.3511 1.39 |Q | | | V | 22+25 5.3606 1.38 |Q | | | V | 22+30 5.3700 1.37 |Q | | | V | 22+35 5.3794 1.36 |Q | | | V | 22+40 5.3887 1.35 |Q | | | V | 22+45 5.3979 1.34 |Q | | | V | 22+50 5.4071 1.33 |Q | | | V| 22+55 5.4162 1.32 |Q | | | V| 23+ 0 5.4252 1.31 |Q | | | V| 23+ 5 5.4342 1.30 |Q | | | V| 23+10 5.4431 1.29 |Q | | | V| 23+15 5.4519 1.29 |Q | | | V| 23+20 5.4607 1.28 |Q | | | V| 23+25 5.4695 1.27 |Q | | | V| 23+30 5.4782 1.26 |Q | | | V| 23+35 5.4868 1.25 |Q | | | V| 23+40 5.4954 1.24 Q | | | V| 23+45 5.5039 1.24 Q | | | V| 23+50 5.5124 1.23 Q | | | V| 23+55 5.5208 1.22 Q | | | V| 24+ 0 5.5291 1.21 Q | | | V| PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D BASIN ROUTING ANALYSIS Subarea IDDrainage Area (Ac)24-Hr Runoff Volume "V" (cu-ft)Provided Basin Volume (cu-ft)Bottom Basin Surface Area (sf)Percolation Rate (in/hr)Total Drawdown Time (hours)Basin DesignationA 24.47 444,796 255,288 38,619 1.43 48 Chamber AB 12.94 240,848 144,007 21,580 1.90 48 Chamber BTOTAL 37.40 685,643 399,295 60,199 -- -- --Subarea IDBottom Basin Elevation (ft)Top Basin Elevation (ft)Total Depth of Basin (ft)100-Year Storm WSE (ft) DCV WSE (ft) Freeboard (ft) Basin DesignationA 964.00 973.00 9 970.50 967.50 2.50 Chamber AB 970.00 979.00 9 976.73 973.50 2.27 Chamber BStorm EventPre-Development Peak Flow (cfs)90% of Pre-Development Peak Flow (cfs)Unattenuated Post-Development Peak Flow (cfs)Attenuated Post-Development Peak Flow (cfs)Storm Water Peak Depth (ft)Freeboard (ft)2-year 11.44 10.30 33.24 1.49 3.61 5.3910-Year 22.55 20.29 54.11 11.20 4.96 4.0425-Year 30.10 27.09 67.58 17.49 5.67 3.33100-year 40.48 36.43 89.14 23.30 6.50 2.502-year 1.18 1.07 19.44 1.00 3.06 5.9410-Year 3.70 3.33 31.34 2.90 4.52 4.4825-Year 5.95 5.35 38.99 5.29 5.37 3.63100-year 8.93 8.04 51.18 7.59 6.73 2.27Drainage Area BPOST-DEVELOPMENT BASIN ROUTING ANALYSIS SUMMARY TABLEPOST-DEVELOPMENT BASIN DEPTH SUMMARY TABLE - 100 YEARPOST-DEVELOPMENT BASIN SUMMARY TABLE - 100 YEARDrainage Area A Stage (ft)Elevation (ft) Total Storage (cu-ft) Total Storage (ac-ft) Orifice Discharge (cfs) Infiltration Dischrage (cfs) Total Discharge (cfs) 0 964.00 0 0.00 0.00 1.27 1.27 1 965.00 15,990 0.37 0.00 1.27 1.27 2 966.00 40,016 0.92 0.00 1.27 1.27 3 967.00 69,745 1.60 0.00 1.27 1.27 4 968.00 102,109 2.34 1.63 0.00 1.63 5 969.00 135,639 3.11 11.60 0.00 11.60 6 970.00 169,169 3.88 20.38 0.00 20.38 7 971.00 201,534 4.63 26.31 0.00 26.31 8 972.00 231,263 5.31 31.13 0.00 31.13 9 973.00 255,288 5.86 35.29 0.00 35.29 Stage (ft)Elevation (ft) Total Storage (cu-ft) Total Storage (ac-ft) Orifice Discharge (cfs) Infiltration Dischrage (cfs) Total Discharge (cfs) 0 970.00 0 0.00 0.00 0.95 0.95 1 971.00 9,007 0.21 0.00 0.95 0.95 2 972.00 22,555 0.52 0.00 0.95 0.95 3 973.00 39,327 0.90 0.00 0.95 0.95 4 974.00 57,588 1.32 1.04 0.00 1.04 5 975.00 76,507 1.76 4.58 0.00 4.58 6 976.00 95,427 2.19 6.51 0.00 6.51 7 977.00 113,688 2.61 7.98 0.00 7.98 8 978.00 130,459 2.99 9.22 0.00 9.22 9 979.00 144,007 3.31 10.32 0.00 10.32 BASIN ROUTING STAGING - CHAMBER B BASIN ROUTING STAGING - CHAMBER A Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2020 Wednesday, 01 / 25 / 2023 Pond No. 1 - Chamber A Pond Data Pond storage is based on user-defined values. Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 964.00 n/a 0 0 1.00 965.00 n/a 15,990 15,990 2.00 966.00 n/a 24,026 40,016 3.00 967.00 n/a 29,729 69,745 4.00 968.00 n/a 32,364 102,109 5.00 969.00 n/a 33,530 135,639 6.00 970.00 n/a 33,530 169,169 7.00 971.00 n/a 32,365 201,534 8.00 972.00 n/a 29,729 231,263 9.00 973.00 n/a 24,025 255,288 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in)= 24.00 Inactive 0.00 0.00 Span (in)= 24.00 8.00 0.00 0.00 No. Barrels = 1 1 0 0 Invert El. (ft)= 967.50 970.00 0.00 0.00 Length (ft)= 0.00 0.00 0.00 0.00 Slope (%)= 0.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff.= 0.66 0.60 0.60 0.60 Multi-Stage = n/a No No No Crest Len (ft)Inactive 0.00 0.00 0.00 Crest El. (ft)= 971.00 0.00 0.00 0.00 Weir Coeff.= 3.33 3.33 3.33 3.33 Weir Type = Rect --- --- --- Multi-Stage = No No No No Exfil.(in/hr)= 0.000 (by Wet area) TW Elev. (ft)= 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). 0 50,000 100,000 150,000 200,000 250,000 300,000 Stage (ft) 0.00 964.00 2.00 966.00 4.00 968.00 6.00 970.00 8.00 972.00 10.00 974.00 Elev (ft) Storage (cuft) Stage / Storage Storage Provide details of outlet facilities, chambers, as-built storm drain plans, etc. in this report to verify hydraulic calcs summarized in the basin routing. These will be checked later. Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2020 Wednesday, 01 / 25 / 2023 Pond No. 2 - Chamber B Pond Data Pond storage is based on user-defined values. Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 970.00 n/a 0 0 1.00 971.00 n/a 9,007 9,007 2.00 972.00 n/a 13,548 22,555 3.00 973.00 n/a 16,772 39,327 4.00 974.00 n/a 18,261 57,588 5.00 975.00 n/a 18,919 76,507 6.00 976.00 n/a 18,920 95,427 7.00 977.00 n/a 18,261 113,688 8.00 978.00 n/a 16,771 130,459 9.00 979.00 n/a 13,548 144,007 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in)= 12.00 4.00 Inactive 0.00 Span (in)= 12.00 4.00 6.00 0.00 No. Barrels = 1 1 1 0 Invert El. (ft)= 973.50 974.00 976.50 0.00 Length (ft)= 0.00 0.00 0.00 0.00 Slope (%)= 0.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff.= 0.66 0.66 0.66 0.60 Multi-Stage = n/a No No No Crest Len (ft)= 0.00 0.00 0.00 0.00 Crest El. (ft)= 0.00 0.00 0.00 0.00 Weir Coeff.= 3.33 3.33 3.33 3.33 Weir Type = --- --- --- --- Multi-Stage = No No No No Exfil.(in/hr)= 0.000 (by Wet area) TW Elev. (ft)= 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). 0 30,000 60,000 90,000 120,000 150,000 Stage (ft) 0.00 970.00 2.00 972.00 4.00 974.00 6.00 976.00 8.00 978.00 10.00 980.00 Elev (ft) Storage (cuft) Stage / Storage Storage Date:01/24/23 Project Name:Chamber A City / County:Fontana State:California Designed By:JL Company:Westland Group =Adjustable Input Cells Telephone: Out-to-out length (ft): 613.0 Backfill Porosity (%): 40% System Diameter (in): 96 Out-to-out width (ft):63.0 Depth Above Pipe (in):6.0 Pipe Spacing (in):36 Number of Manifolds (ea):1.0 Depth Below Pipe (in):6.0 Incremental Analysis (in):2 Number of Barrels (ea):6.0 Width At Ends (ft):1.0 System Invert (Elevation):964 Width At Sides (ft):1.0 Depth (ft) Elevation (ft) Incremental Storage (cf) Cumulative Storage (cf) Incremental Storage (cf) Cumulative Storage (cf) Incremental Storage (cf) Cumulative Storage (cf) Percent Open Storage (%) Ave. Surface Area (sf) 0.00 964.00 0.0 0.0 0.0 0.0 0.0 0.0 0.0% 15,990.0 0.17 964.16 0.0 0.0 2,665.0 2,665.0 2,665.0 2,665.0 0.0% 15,990.0 0.33 964.33 0.0 0.0 2,665.0 5,330.0 2,665.0 5,330.0 0.0%15,990.0 0.50 964.50 0.0 0.0 2,665.0 7,995.0 2,665.0 7,995.0 0.0% 15,990.0 0.67 964.66 941.7 941.7 2,288.3 10,283.3 3,230.0 11,225.0 8.4% 21,053.6 0.83 964.83 1,704.8 2,646.5 1,983.1 12,266.4 3,687.9 14,912.9 17.7% 23,074.4 1.00 965.00 2,184.1 4,830.6 1,791.4 14,057.8 3,975.5 18,888.4 25.6% 24,571.8 1.17 965.16 2,557.9 7,388.6 1,641.8 15,699.6 4,199.8 23,088.1 32.0% 25,788.6 1.33 965.33 2,868.7 10,257.3 1,517.5 17,217.1 4,386.2 27,474.4 37.3% 26,820.0 1.50 965.50 3,135.4 13,392.6 1,410.8 18,627.9 4,546.2 32,020.6 41.8% 27,714.9 1.67 965.66 3,368.6 16,761.2 1,317.6 19,945.5 4,686.1 36,706.7 45.7% 28,502.7 1.83 965.83 3,574.8 20,336.0 1,235.1 21,180.6 4,809.9 41,516.6 49.0% 29,202.5 2.00 966.00 3,758.6 24,094.6 1,161.6 22,342.2 4,920.1 46,436.7 51.9% 29,827.7 2.17 966.16 3,923.0 28,017.6 1,095.8 23,438.0 5,018.8 51,455.6 54.5% 30,388.0 2.33 966.33 4,070.5 32,088.1 1,036.8 24,474.8 5,107.3 56,562.9 56.7% 30,890.7 2.50 966.50 4,202.8 36,291.0 983.9 25,458.6 5,186.7 61,749.6 58.8% 31,341.5 2.67 966.66 4,321.4 40,612.3 936.4 26,395.1 5,257.8 67,007.4 60.6% 31,744.9 2.83 966.83 4,427.3 45,039.6 894.1 27,289.2 5,321.4 72,328.8 62.3% 32,104.3 3.00 967.00 4,521.4 49,561.0 856.5 28,145.6 5,377.8 77,706.6 63.8% 32,422.8 3.17 967.16 4,604.4 54,165.4 823.2 28,968.9 5,427.6 83,134.2 65.2% 32,702.6 3.33 967.33 4,677.0 58,842.3 794.2 29,763.1 5,471.2 88,605.4 66.4% 32,945.7 3.50 967.50 4,739.6 63,581.9 769.2 30,532.2 5,508.7 94,114.1 67.6% 33,153.5 3.67 967.66 4,792.6 68,374.5 748.0 31,280.2 5,540.5 99,654.7 68.6% 33,327.4 3.83 967.83 4,836.3 73,210.8 730.5 32,010.7 5,566.8 105,221.5 69.6% 33,468.5 4.00 968.00 4,871.0 78,081.8 716.6 32,727.3 5,587.6 110,809.1 70.5% 33,577.4 4.17 968.16 4,896.9 82,978.6 706.3 33,433.6 5,603.1 116,412.2 71.3% 33,654.7 4.33 968.33 4,914.0 87,892.6 699.4 34,132.9 5,613.4 122,025.6 72.0% 33,701.0 4.50 968.50 4,922.6 92,815.2 696.0 34,828.9 5,618.5 127,644.1 72.7% 33,716.4 4.67 968.66 4,922.6 97,737.8 696.0 35,524.9 5,618.5 133,262.7 73.3% 33,701.0 4.83 968.83 4,914.0 102,651.8 699.4 36,224.3 5,613.4 138,876.1 73.9% 33,654.7 5.00 969.00 4,896.9 107,548.7 706.3 36,930.5 5,603.1 144,479.2 74.4% 33,577.4 5.17 969.16 4,871.0 112,419.6 716.6 37,647.1 5,587.6 150,066.8 74.9% 33,468.5 5.33 969.33 4,836.3 117,255.9 730.5 38,377.6 5,566.8 155,633.6 75.3% 33,327.4 5.50 969.50 4,792.6 122,048.5 748.0 39,125.6 5,540.5 161,174.1 75.7% 33,153.5 5.67 969.66 4,739.6 126,788.1 769.2 39,894.8 5,508.7 166,682.9 76.1% 32,945.7 5.83 969.83 4,677.0 131,465.1 794.2 40,689.0 5,471.2 172,154.0 76.4% 32,702.6 6.00 970.00 4,604.4 136,069.5 823.2 41,512.2 5,427.6 177,581.7 76.6% 32,422.8 6.17 970.16 4,521.4 140,590.8 856.5 42,368.7 5,377.8 182,959.5 76.8% 32,104.3 6.33 970.33 4,427.3 145,018.1 894.1 43,262.8 5,321.4 188,280.9 77.0% 31,744.9 6.50 970.50 4,321.4 149,339.5 936.4 44,199.2 5,257.8 193,538.7 77.2% 31,341.5 6.67 970.66 4,202.8 153,542.3 983.9 45,183.1 5,186.7 198,725.4 77.3% 30,890.7 6.83 970.83 4,070.5 157,612.8 1,036.8 46,219.9 5,107.3 203,832.7 77.3% 30,388.0 7.00 971.00 3,923.0 161,535.9 1,095.8 47,315.7 5,018.8 208,851.5 77.3% 29,827.7 7.17 971.16 3,758.6 165,294.4 1,161.6 48,477.2 4,920.1 213,771.7 77.3% 29,202.5 7.33 971.33 3,574.8 168,869.2 1,235.1 49,712.3 4,809.9 218,581.5 77.3% 28,502.7 7.50 971.50 3,368.6 172,237.8 1,317.6 51,029.9 4,686.1 223,267.7 77.1% 27,714.9 7.67 971.66 3,135.4 175,373.2 1,410.8 52,440.7 4,546.2 227,813.9 77.0% 26,820.0 7.83 971.83 2,868.7 178,241.9 1,517.5 53,958.3 4,386.2 232,200.1 76.8% 25,788.6 8.00 972.00 2,557.9 180,799.8 1,641.8 55,600.1 4,199.8 236,399.9 76.5% 24,571.8 8.17 972.16 2,184.1 182,983.9 1,791.4 57,391.4 3,975.5 240,375.3 76.1% 23,074.4 8.33 972.33 1,704.8 184,688.7 1,983.1 59,374.5 3,687.9 244,063.2 75.7% 21,053.6 8.50 972.50 941.7 185,630.4 2,288.3 61,662.8 3,230.0 247,293.3 75.1% 15,990.0 8.67 972.66 0.0 185,630.4 2,665.0 64,327.8 2,665.0 249,958.3 74.3% 15,990.0 8.83 972.83 0.0 185,630.4 2,665.0 66,992.8 2,665.0 252,623.3 73.5% 15,990.0 9.00 973.00 0.0 185,630.4 2,665.0 69,657.8 2,665.0 255,288.3 72.7% 15,990.0 Pipe Stone Total SystemSystem Storage Volume Estimation Miscellaneous Contech Engineered Solutions, LLC is pleased to offer the following estimate of storage volume for the above named project. The results are submitted as an estimate only, without liability on the part of Contech Engineered Solutions, LLC for accuracy or suitability to any particular applicaton and are subject to verification of the Engineer of Record. This tool is only applicable for rectangular shaped systems. CMP: Underground Detention System Storage Volume Estimation Summary of Inputs Pipe & Analysis InformationSystem Information Backfill Information These results are submitted to you as a guideline only, without liability on the part of CONTECH Engineered Solutions, LLC for accuracy or suitability to any particular application, and are subject to your verification. Date:01/24/23 Project Name:Chamber B City / County:Fontana State:California Designed By:JL Company:Westland Group =Adjustable Input Cells Telephone: Out-to-out length (ft): 415.0 Backfill Porosity (%): 40% System Diameter (in): 96 Out-to-out width (ft):52.0 Depth Above Pipe (in):6.0 Pipe Spacing (in):36 Number of Manifolds (ea):1.0 Depth Below Pipe (in):6.0 Incremental Analysis (in):2 Number of Barrels (ea):5.0 Width At Ends (ft):1.0 System Invert (Elevation):970 Width At Sides (ft):1.0 Depth (ft) Elevation (ft) Incremental Storage (cf) Cumulative Storage (cf) Incremental Storage (cf) Cumulative Storage (cf) Incremental Storage (cf) Cumulative Storage (cf) Percent Open Storage (%) Ave. Surface Area (sf) 0.00 970.00 0.0 0.0 0.0 0.0 0.0 0.0 0.0% 9,007.2 0.17 970.16 0.0 0.0 1,501.2 1,501.2 1,501.2 1,501.2 0.0% 9,007.2 0.33 970.33 0.0 0.0 1,501.2 3,002.4 1,501.2 3,002.4 0.0%9,007.2 0.50 970.50 0.0 0.0 1,501.2 4,503.6 1,501.2 4,503.6 0.0% 9,007.2 0.67 970.66 532.2 532.2 1,288.3 5,791.9 1,820.5 6,324.1 8.4% 11,868.8 0.83 970.83 963.5 1,495.6 1,115.8 6,907.8 2,079.3 8,403.4 17.8% 13,010.8 1.00 971.00 1,234.3 2,729.9 1,007.5 7,915.2 2,241.8 10,645.1 25.6% 13,856.9 1.17 971.16 1,445.5 4,175.4 923.0 8,838.2 2,368.5 13,013.7 32.1% 14,544.6 1.33 971.33 1,621.2 5,796.6 852.7 9,691.0 2,473.9 15,487.6 37.4% 15,127.5 1.50 971.50 1,771.9 7,568.5 792.4 10,483.4 2,564.3 18,051.9 41.9% 15,633.2 1.67 971.66 1,903.7 9,472.1 739.7 11,223.1 2,643.4 20,695.3 45.8% 16,078.4 1.83 971.83 2,020.2 11,492.3 693.1 11,916.3 2,713.3 23,408.6 49.1% 16,473.9 2.00 972.00 2,124.1 13,616.4 651.6 12,567.8 2,775.6 26,184.2 52.0% 16,827.2 2.17 972.16 2,217.0 15,833.4 614.4 13,182.2 2,831.4 29,015.6 54.6% 17,143.8 2.33 972.33 2,300.3 18,133.7 581.1 13,763.3 2,881.4 31,897.0 56.9% 17,427.9 2.50 972.50 2,375.1 20,508.9 551.2 14,314.5 2,926.3 34,823.3 58.9% 17,682.7 2.67 972.66 2,442.1 22,951.0 524.4 14,838.8 2,966.5 37,789.8 60.7% 17,910.6 2.83 972.83 2,501.9 25,452.9 500.4 15,339.2 3,002.4 40,792.2 62.4% 18,113.8 3.00 973.00 2,555.1 28,008.0 479.1 15,818.4 3,034.3 43,826.4 63.9% 18,293.8 3.17 973.16 2,602.1 30,610.1 460.4 16,278.8 3,062.4 46,888.9 65.3% 18,451.9 3.33 973.33 2,643.1 33,253.2 444.0 16,722.7 3,087.0 49,975.9 66.5% 18,589.2 3.50 973.50 2,678.4 35,931.6 429.8 17,152.6 3,108.3 53,084.2 67.7% 18,706.7 3.67 973.66 2,708.4 38,640.0 417.8 17,570.4 3,126.2 56,210.4 68.7% 18,805.0 3.83 973.83 2,733.1 41,373.1 408.0 17,978.4 3,141.1 59,351.5 69.7% 18,884.7 4.00 974.00 2,752.7 44,125.8 400.1 18,378.5 3,152.8 62,504.3 70.6% 18,946.2 4.17 974.16 2,767.3 46,893.1 394.3 18,772.7 3,161.6 65,665.9 71.4% 18,990.0 4.33 974.33 2,777.0 49,670.2 390.4 19,163.1 3,167.4 68,833.3 72.2% 19,016.1 4.50 974.50 2,781.9 52,452.0 388.5 19,551.6 3,170.3 72,003.6 72.8% 19,024.8 4.67 974.66 2,781.9 55,233.9 388.5 19,940.0 3,170.3 75,173.9 73.5% 19,016.1 4.83 974.83 2,777.0 58,010.9 390.4 20,330.4 3,167.4 78,341.3 74.0% 18,990.0 5.00 975.00 2,767.3 60,778.2 394.3 20,724.7 3,161.6 81,502.9 74.6% 18,946.2 5.17 975.16 2,752.7 63,530.9 400.1 21,124.8 3,152.8 84,655.8 75.0% 18,884.7 5.33 975.33 2,733.1 66,264.1 408.0 21,532.8 3,141.1 87,796.8 75.5% 18,805.0 5.50 975.50 2,708.4 68,972.4 417.8 21,950.6 3,126.2 90,923.1 75.9% 18,706.7 5.67 975.66 2,678.4 71,650.9 429.8 22,380.4 3,108.3 94,031.3 76.2% 18,589.2 5.83 975.83 2,643.1 74,294.0 444.0 22,824.4 3,087.0 97,118.4 76.5% 18,451.9 6.00 976.00 2,602.1 76,896.0 460.4 23,284.8 3,062.4 100,180.8 76.8% 18,293.8 6.17 976.16 2,555.1 79,451.1 479.1 23,763.9 3,034.3 103,215.1 77.0% 18,113.8 6.33 976.33 2,501.9 81,953.1 500.4 24,264.4 3,002.4 106,217.5 77.2% 17,910.6 6.50 976.50 2,442.1 84,395.2 524.4 24,788.7 2,966.5 109,183.9 77.3% 17,682.7 6.67 976.66 2,375.1 86,770.3 551.2 25,339.9 2,926.3 112,110.2 77.4% 17,427.9 6.83 976.83 2,300.3 89,070.7 581.1 25,920.9 2,881.4 114,991.6 77.5% 17,143.8 7.00 977.00 2,217.0 91,287.7 614.4 26,535.3 2,831.4 117,823.0 77.5% 16,827.2 7.17 977.16 2,124.1 93,411.7 651.6 27,186.9 2,775.6 120,598.6 77.5% 16,473.9 7.33 977.33 2,020.2 95,431.9 693.1 27,880.0 2,713.3 123,312.0 77.4% 16,078.4 7.50 977.50 1,903.7 97,335.6 739.7 28,619.8 2,643.4 125,955.3 77.3% 15,633.2 7.67 977.66 1,771.9 99,107.5 792.4 29,412.2 2,564.3 128,519.7 77.1% 15,127.5 7.83 977.83 1,621.2 100,728.6 852.7 30,265.0 2,473.9 130,993.6 76.9% 14,544.6 8.00 978.00 1,445.5 102,174.2 923.0 31,187.9 2,368.5 133,362.1 76.6% 13,856.9 8.17 978.16 1,234.3 103,408.4 1,007.5 32,195.4 2,241.8 135,603.9 76.3% 13,010.8 8.33 978.33 963.5 104,371.9 1,115.8 33,311.2 2,079.3 137,683.1 75.8% 11,868.8 8.50 978.50 532.2 104,904.1 1,288.3 34,599.6 1,820.5 139,503.6 75.2% 9,007.2 8.67 978.66 0.0 104,904.1 1,501.2 36,100.8 1,501.2 141,004.8 74.4% 9,007.2 8.83 978.83 0.0 104,904.1 1,501.2 37,602.0 1,501.2 142,506.0 73.6% 9,007.2 9.00 979.00 0.0 104,904.1 1,501.2 39,103.2 1,501.2 144,007.2 72.8% 9,007.2 Pipe Stone Total SystemSystem Storage Volume Estimation Miscellaneous Contech Engineered Solutions, LLC is pleased to offer the following estimate of storage volume for the above named project. The results are submitted as an estimate only, without liability on the part of Contech Engineered Solutions, LLC for accuracy or suitability to any particular applicaton and are subject to verification of the Engineer of Record. This tool is only applicable for rectangular shaped systems. CMP: Underground Detention System Storage Volume Estimation Summary of Inputs Pipe & Analysis InformationSystem Information Backfill Information These results are submitted to you as a guideline only, without liability on the part of CONTECH Engineered Solutions, LLC for accuracy or suitability to any particular application, and are subject to your verification. PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.1 BASIN ROUTING ANALYSIS DRAINAGE AREA A – 2 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 2 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER A -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH2POSTA.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 31.928 (CFS) Total volume = 4.064 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.370 1.270 0.366 0.374 2.000 0.920 1.270 0.916 0.924 3.000 1.600 1.270 1.596 1.604 4.000 2.340 1.629 2.334 2.346 5.000 3.110 11.600 3.070 3.150 6.000 3.880 20.380 3.810 3.950 7.000 4.630 26.310 4.539 4.721 8.000 5.310 31.130 5.203 5.417 9.000 5.860 35.290 5.738 5.982 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 8.0 15.96 23.95 31.93 (Ft.) 0.083 0.08 0.00 0.000 O | | | | 0.00 0.167 0.48 0.01 0.002 O | | | | 0.01 0.250 0.78 0.02 0.006 O | | | | 0.02 0.333 0.85 0.04 0.012 O | | | | 0.03 0.417 0.87 0.06 0.017 O | | | | 0.05 0.500 0.87 0.08 0.023 O | | | | 0.06 0.583 0.87 0.10 0.028 O | | | | 0.08 0.667 0.88 0.12 0.034 O | | | | 0.09 0.750 0.88 0.13 0.039 O | | | | 0.10 0.833 0.88 0.15 0.044 O | | | | 0.12 0.917 0.89 0.17 0.049 O | | | | 0.13 1.000 0.89 0.18 0.054 O | | | | 0.15 1.083 0.89 0.20 0.059 O | | | | 0.16 1.167 0.89 0.22 0.063 O | | | | 0.17 1.250 0.90 0.23 0.068 O | | | | 0.18 1.333 0.90 0.25 0.072 O | | | | 0.20 1.417 0.90 0.26 0.077 O | | | | 0.21 1.500 0.91 0.28 0.081 O | | | | 0.22 1.583 0.91 0.29 0.086 O | | | | 0.23 1.667 0.91 0.31 0.090 O | | | | 0.24 1.750 0.91 0.32 0.094 O | | | | 0.25 1.833 0.92 0.34 0.098 O | | | | 0.26 1.917 0.92 0.35 0.102 O | | | | 0.28 2.000 0.92 0.36 0.106 O | | | | 0.29 2.083 0.93 0.38 0.110 O | | | | 0.30 2.167 0.93 0.39 0.113 O | | | | 0.31 2.250 0.93 0.40 0.117 O | | | | 0.32 2.333 0.94 0.41 0.121 O | | | | 0.33 2.417 0.94 0.43 0.124 O | | | | 0.34 2.500 0.94 0.44 0.128 O | | | | 0.35 2.583 0.95 0.45 0.131 O | | | | 0.35 2.667 0.95 0.46 0.135 O | | | | 0.36 2.750 0.95 0.47 0.138 O | | | | 0.37 2.833 0.96 0.48 0.141 O | | | | 0.38 2.917 0.96 0.50 0.144 O | | | | 0.39 3.000 0.96 0.51 0.148 O | | | | 0.40 3.083 0.97 0.52 0.151 O | | | | 0.41 3.167 0.97 0.53 0.154 O | | | | 0.42 3.250 0.97 0.54 0.157 O | | | | 0.42 3.333 0.98 0.55 0.160 O | | | | 0.43 3.417 0.98 0.56 0.163 O | | | | 0.44 3.500 0.98 0.57 0.166 O | | | | 0.45 3.583 0.99 0.58 0.168 O | | | | 0.46 3.667 0.99 0.59 0.171 O | | | | 0.46 3.750 1.00 0.60 0.174 O | | | | 0.47 3.833 1.00 0.61 0.177 OI | | | | 0.48 3.917 1.00 0.62 0.179 OI | | | | 0.48 4.000 1.01 0.63 0.182 OI | | | | 0.49 4.083 1.01 0.63 0.185 OI | | | | 0.50 4.167 1.02 0.64 0.187 OI | | | | 0.51 4.250 1.02 0.65 0.190 OI | | | | 0.51 4.333 1.02 0.66 0.192 OI | | | | 0.52 4.417 1.03 0.67 0.195 OI | | | | 0.53 4.500 1.03 0.68 0.197 OI | | | | 0.53 4.583 1.04 0.69 0.200 OI | | | | 0.54 4.667 1.04 0.69 0.202 OI | | | | 0.55 4.750 1.04 0.70 0.205 OI | | | | 0.55 4.833 1.05 0.71 0.207 OI | | | | 0.56 4.917 1.05 0.72 0.209 OI | | | | 0.57 5.000 1.06 0.73 0.211 OI | | | | 0.57 5.083 1.06 0.73 0.214 OI | | | | 0.58 5.167 1.07 0.74 0.216 OI | | | | 0.58 5.250 1.07 0.75 0.218 OI | | | | 0.59 5.333 1.08 0.76 0.220 OI | | | | 0.60 5.417 1.08 0.76 0.223 OI | | | | 0.60 5.500 1.09 0.77 0.225 OI | | | | 0.61 5.583 1.09 0.78 0.227 OI | | | | 0.61 5.667 1.10 0.79 0.229 OI | | | | 0.62 5.750 1.10 0.79 0.231 OI | | | | 0.63 5.833 1.11 0.80 0.233 OI | | | | 0.63 5.917 1.11 0.81 0.235 OI | | | | 0.64 6.000 1.12 0.82 0.238 OI | | | | 0.64 6.083 1.12 0.82 0.240 OI | | | | 0.65 6.167 1.13 0.83 0.242 OI | | | | 0.65 6.250 1.13 0.84 0.244 OI | | | | 0.66 6.333 1.14 0.84 0.246 OI | | | | 0.66 6.417 1.14 0.85 0.248 OI | | | | 0.67 6.500 1.15 0.86 0.250 OI | | | | 0.68 6.583 1.15 0.86 0.252 OI | | | | 0.68 6.667 1.16 0.87 0.254 OI | | | | 0.69 6.750 1.17 0.88 0.256 OI | | | | 0.69 6.833 1.17 0.88 0.258 OI | | | | 0.70 6.917 1.18 0.89 0.260 OI | | | | 0.70 7.000 1.18 0.90 0.262 OI | | | | 0.71 7.083 1.19 0.91 0.264 OI | | | | 0.71 7.167 1.20 0.91 0.266 OI | | | | 0.72 7.250 1.20 0.92 0.268 OI | | | | 0.72 7.333 1.21 0.93 0.270 OI | | | | 0.73 7.417 1.22 0.93 0.272 OI | | | | 0.73 7.500 1.22 0.94 0.274 OI | | | | 0.74 7.583 1.23 0.95 0.275 OI | | | | 0.74 7.667 1.24 0.95 0.277 OI | | | | 0.75 7.750 1.24 0.96 0.279 OI | | | | 0.76 7.833 1.25 0.97 0.281 OI | | | | 0.76 7.917 1.26 0.97 0.283 OI | | | | 0.77 8.000 1.27 0.98 0.285 OI | | | | 0.77 8.083 1.27 0.99 0.287 OI | | | | 0.78 8.167 1.28 0.99 0.289 OI | | | | 0.78 8.250 1.29 1.00 0.291 |O | | | | 0.79 8.333 1.30 1.01 0.293 |O | | | | 0.79 8.417 1.30 1.01 0.295 |O | | | | 0.80 8.500 1.31 1.02 0.297 |O | | | | 0.80 8.583 1.32 1.03 0.299 |O | | | | 0.81 8.667 1.33 1.03 0.301 |O | | | | 0.81 8.750 1.34 1.04 0.303 |O | | | | 0.82 8.833 1.35 1.05 0.305 |O | | | | 0.83 8.917 1.35 1.06 0.307 |O | | | | 0.83 9.000 1.36 1.06 0.309 |O | | | | 0.84 9.083 1.37 1.07 0.312 |O | | | | 0.84 9.167 1.38 1.08 0.314 |O | | | | 0.85 9.250 1.39 1.08 0.316 |O | | | | 0.85 9.333 1.40 1.09 0.318 |O | | | | 0.86 9.417 1.41 1.10 0.320 |O | | | | 0.86 9.500 1.42 1.11 0.322 |O | | | | 0.87 9.583 1.43 1.11 0.324 |O | | | | 0.88 9.667 1.44 1.12 0.327 |O | | | | 0.88 9.750 1.45 1.13 0.329 |O | | | | 0.89 9.833 1.46 1.14 0.331 |O | | | | 0.89 9.917 1.47 1.14 0.333 |O | | | | 0.90 10.000 1.49 1.15 0.336 |O | | | | 0.91 10.083 1.50 1.16 0.338 |O | | | | 0.91 10.167 1.51 1.17 0.340 |O | | | | 0.92 10.250 1.52 1.18 0.343 |O | | | | 0.93 10.333 1.53 1.18 0.345 |O | | | | 0.93 10.417 1.55 1.19 0.347 |O | | | | 0.94 10.500 1.56 1.20 0.350 |O | | | | 0.95 10.583 1.57 1.21 0.352 |O | | | | 0.95 10.667 1.59 1.22 0.355 |O | | | | 0.96 10.750 1.60 1.23 0.357 |O | | | | 0.97 10.833 1.61 1.24 0.360 |O | | | | 0.97 10.917 1.63 1.24 0.363 |O | | | | 0.98 11.000 1.64 1.25 0.365 |O | | | | 0.99 11.083 1.66 1.26 0.368 |O | | | | 0.99 11.167 1.67 1.27 0.371 |O | | | | 1.00 11.250 1.69 1.27 0.374 |O | | | | 1.01 11.333 1.71 1.27 0.376 |O | | | | 1.01 11.417 1.72 1.27 0.380 |O | | | | 1.02 11.500 1.74 1.27 0.383 |O | | | | 1.02 11.583 1.76 1.27 0.386 |O | | | | 1.03 11.667 1.78 1.27 0.389 |O | | | | 1.04 11.750 1.80 1.27 0.393 |O | | | | 1.04 11.833 1.82 1.27 0.397 |O | | | | 1.05 11.917 1.84 1.27 0.401 |O | | | | 1.06 12.000 1.86 1.27 0.405 |O | | | | 1.06 12.083 1.92 1.27 0.409 |O | | | | 1.07 12.167 2.18 1.27 0.414 |OI | | | | 1.08 12.250 2.37 1.27 0.421 |OI | | | | 1.09 12.333 2.44 1.27 0.429 |OI | | | | 1.11 12.417 2.47 1.27 0.437 |OI | | | | 1.12 12.500 2.49 1.27 0.445 |OI | | | | 1.14 12.583 2.52 1.27 0.454 |OI | | | | 1.15 12.667 2.55 1.27 0.463 |OI | | | | 1.17 12.750 2.58 1.27 0.472 |OI | | | | 1.18 12.833 2.61 1.27 0.481 |OI | | | | 1.20 12.917 2.64 1.27 0.490 |OI | | | | 1.22 13.000 2.67 1.27 0.499 |OI | | | | 1.24 13.083 2.70 1.27 0.509 |OI | | | | 1.25 13.167 2.74 1.27 0.519 |OI | | | | 1.27 13.250 2.77 1.27 0.529 |OI | | | | 1.29 13.333 2.81 1.27 0.540 |OI | | | | 1.31 13.417 2.85 1.27 0.551 |OI | | | | 1.33 13.500 2.89 1.27 0.562 |OI | | | | 1.35 13.583 2.93 1.27 0.573 |OI | | | | 1.37 13.667 2.97 1.27 0.584 |OI | | | | 1.39 13.750 3.02 1.27 0.596 |O I | | | | 1.41 13.833 3.07 1.27 0.608 |O I | | | | 1.43 13.917 3.12 1.27 0.621 |O I | | | | 1.46 14.000 3.17 1.27 0.634 |O I | | | | 1.48 14.083 3.23 1.27 0.647 |O I | | | | 1.50 14.167 3.30 1.27 0.661 |O I | | | | 1.53 14.250 3.36 1.27 0.675 |O I | | | | 1.55 14.333 3.43 1.27 0.690 |O I | | | | 1.58 14.417 3.50 1.27 0.705 |O I | | | | 1.61 14.500 3.58 1.27 0.721 |O I | | | | 1.64 14.583 3.66 1.27 0.737 |O I | | | | 1.67 14.667 3.76 1.27 0.754 |O I | | | | 1.70 14.750 3.85 1.27 0.771 |O I | | | | 1.73 14.833 3.97 1.27 0.789 |O I | | | | 1.76 14.917 4.08 1.27 0.808 |O I | | | | 1.80 15.000 4.21 1.27 0.828 |O I | | | | 1.83 15.083 4.35 1.27 0.849 |O I | | | | 1.87 15.167 4.52 1.27 0.871 |O I | | | | 1.91 15.250 4.69 1.27 0.894 |O I | | | | 1.95 15.333 4.91 1.27 0.918 |O I | | | | 2.00 15.417 5.01 1.27 0.943 |O I | | | | 2.03 15.500 4.64 1.27 0.968 |O I | | | | 2.07 15.583 4.46 1.27 0.990 |O I | | | | 2.10 15.667 4.78 1.27 1.013 |O I | | | | 2.14 15.750 5.27 1.27 1.039 |O I | | | | 2.18 15.833 6.05 1.27 1.069 |O I | | | | 2.22 15.917 7.16 1.27 1.106 |O I| | | | 2.27 16.000 9.44 1.27 1.155 |O |I | | | 2.35 16.083 16.35 1.27 1.235 |O | I | | 2.46 16.167 31.93 1.27 1.392 |O | | | I| 2.69 16.250 24.58 1.27 1.578 |O | | I | 2.97 16.333 10.55 1.31 1.690 |O | I | | | 3.12 16.417 6.37 1.34 1.739 |O I | | | | 3.19 16.500 5.20 1.35 1.770 |O I | | | | 3.23 16.583 5.03 1.36 1.796 |O I | | | | 3.26 16.667 4.68 1.38 1.820 |O I | | | | 3.30 16.750 4.36 1.39 1.841 |O I | | | | 3.33 16.833 4.08 1.40 1.861 |O I | | | | 3.35 16.917 3.86 1.41 1.878 |O I | | | | 3.38 17.000 3.66 1.41 1.895 |O I | | | | 3.40 17.083 3.50 1.42 1.910 |O I | | | | 3.42 17.167 3.36 1.43 1.923 |O I | | | | 3.44 17.250 3.23 1.43 1.936 |O I | | | | 3.45 17.333 3.12 1.44 1.948 |O I | | | | 3.47 17.417 3.02 1.44 1.959 |O I | | | | 3.49 17.500 2.93 1.45 1.970 |OI | | | | 3.50 17.583 2.84 1.45 1.980 |OI | | | | 3.51 17.667 2.77 1.46 1.989 |OI | | | | 3.53 17.750 2.70 1.46 1.998 |OI | | | | 3.54 17.833 2.63 1.47 2.006 |OI | | | | 3.55 17.917 2.57 1.47 2.014 |OI | | | | 3.56 18.000 2.52 1.47 2.021 |OI | | | | 3.57 18.083 2.42 1.48 2.028 |OI | | | | 3.58 18.167 2.14 1.48 2.034 |OI | | | | 3.59 18.250 1.92 1.48 2.037 |O | | | | 3.59 18.333 1.84 1.48 2.040 |O | | | | 3.59 18.417 1.80 1.48 2.042 |O | | | | 3.60 18.500 1.76 1.49 2.044 |O | | | | 3.60 18.583 1.72 1.49 2.046 |O | | | | 3.60 18.667 1.69 1.49 2.048 |O | | | | 3.61 18.750 1.66 1.49 2.049 |O | | | | 3.61 18.833 1.63 1.49 2.050 |O | | | | 3.61 18.917 1.60 1.49 2.051 |O | | | | 3.61 19.000 1.57 1.49 2.052 |O | | | | 3.61 19.083 1.54 1.49 2.052 |O | | | | 3.61 19.167 1.52 1.49 2.052 |O | | | | 3.61 19.250 1.50 1.49 2.052 |O | | | | 3.61 19.333 1.47 1.49 2.052 |O | | | | 3.61 19.417 1.45 1.49 2.052 |O | | | | 3.61 19.500 1.43 1.49 2.052 |O | | | | 3.61 19.583 1.41 1.49 2.051 |O | | | | 3.61 19.667 1.39 1.49 2.051 |O | | | | 3.61 19.750 1.37 1.49 2.050 |O | | | | 3.61 19.833 1.35 1.49 2.049 |O | | | | 3.61 19.917 1.34 1.49 2.048 |O | | | | 3.61 20.000 1.32 1.49 2.047 |O | | | | 3.60 20.083 1.30 1.49 2.046 |O | | | | 3.60 20.167 1.29 1.49 2.045 |O | | | | 3.60 20.250 1.27 1.49 2.043 |O | | | | 3.60 20.333 1.26 1.48 2.042 |O | | | | 3.60 20.417 1.24 1.48 2.040 |O | | | | 3.59 20.500 1.23 1.48 2.038 |O | | | | 3.59 20.583 1.22 1.48 2.037 |O | | | | 3.59 20.667 1.20 1.48 2.035 |O | | | | 3.59 20.750 1.19 1.48 2.033 |O | | | | 3.58 20.833 1.18 1.48 2.031 |O | | | | 3.58 20.917 1.17 1.48 2.029 |O | | | | 3.58 21.000 1.15 1.48 2.026 |O | | | | 3.58 21.083 1.14 1.48 2.024 |O | | | | 3.57 21.167 1.13 1.47 2.022 |O | | | | 3.57 21.250 1.12 1.47 2.019 |O | | | | 3.57 21.333 1.11 1.47 2.017 |O | | | | 3.56 21.417 1.10 1.47 2.014 |O | | | | 3.56 21.500 1.09 1.47 2.012 |O | | | | 3.56 21.583 1.08 1.47 2.009 |O | | | | 3.55 21.667 1.07 1.47 2.007 |O | | | | 3.55 21.750 1.06 1.47 2.004 |O | | | | 3.55 21.833 1.05 1.46 2.001 |O | | | | 3.54 21.917 1.04 1.46 1.998 |O | | | | 3.54 22.000 1.04 1.46 1.995 |O | | | | 3.53 22.083 1.03 1.46 1.992 |O | | | | 3.53 22.167 1.02 1.46 1.989 |O | | | | 3.53 22.250 1.01 1.46 1.986 |O | | | | 3.52 22.333 1.00 1.46 1.983 |O | | | | 3.52 22.417 1.00 1.45 1.980 IO | | | | 3.51 22.500 0.99 1.45 1.977 IO | | | | 3.51 22.583 0.98 1.45 1.974 IO | | | | 3.50 22.667 0.97 1.45 1.970 IO | | | | 3.50 22.750 0.97 1.45 1.967 IO | | | | 3.50 22.833 0.96 1.45 1.964 IO | | | | 3.49 22.917 0.95 1.44 1.960 IO | | | | 3.49 23.000 0.95 1.44 1.957 IO | | | | 3.48 23.083 0.94 1.44 1.954 IO | | | | 3.48 23.167 0.93 1.44 1.950 IO | | | | 3.47 23.250 0.93 1.44 1.947 IO | | | | 3.47 23.333 0.92 1.44 1.943 IO | | | | 3.46 23.417 0.91 1.43 1.939 IO | | | | 3.46 23.500 0.91 1.43 1.936 IO | | | | 3.45 23.583 0.90 1.43 1.932 IO | | | | 3.45 23.667 0.90 1.43 1.929 IO | | | | 3.44 23.750 0.89 1.43 1.925 IO | | | | 3.44 23.833 0.89 1.43 1.921 IO | | | | 3.43 23.917 0.88 1.42 1.917 IO | | | | 3.43 24.000 0.87 1.42 1.914 IO | | | | 3.42 24.083 0.79 1.42 1.910 IO | | | | 3.42 24.167 0.38 1.42 1.904 IO | | | | 3.41 24.250 0.08 1.41 1.896 IO | | | | 3.40 24.333 0.02 1.41 1.886 IO | | | | 3.39 24.417 0.00 1.40 1.877 IO | | | | 3.37 24.500 0.00 1.40 1.867 IO | | | | 3.36 24.583 0.00 1.39 1.857 IO | | | | 3.35 24.667 0.00 1.39 1.848 IO | | | | 3.33 24.750 0.00 1.39 1.838 IO | | | | 3.32 24.833 0.00 1.38 1.829 IO | | | | 3.31 24.917 0.00 1.38 1.819 IO | | | | 3.30 25.000 0.00 1.37 1.810 IO | | | | 3.28 25.083 0.00 1.37 1.800 IO | | | | 3.27 25.167 0.00 1.36 1.791 IO | | | | 3.26 25.250 0.00 1.36 1.782 IO | | | | 3.25 25.333 0.00 1.35 1.772 IO | | | | 3.23 25.417 0.00 1.35 1.763 IO | | | | 3.22 25.500 0.00 1.34 1.754 IO | | | | 3.21 25.583 0.00 1.34 1.744 IO | | | | 3.20 25.667 0.00 1.34 1.735 IO | | | | 3.18 25.750 0.00 1.33 1.726 IO | | | | 3.17 25.833 0.00 1.33 1.717 IO | | | | 3.16 25.917 0.00 1.32 1.708 IO | | | | 3.15 26.000 0.00 1.32 1.699 IO | | | | 3.13 26.083 0.00 1.31 1.690 IO | | | | 3.12 26.167 0.00 1.31 1.681 IO | | | | 3.11 26.250 0.00 1.30 1.672 IO | | | | 3.10 26.333 0.00 1.30 1.663 IO | | | | 3.08 26.417 0.00 1.30 1.654 IO | | | | 3.07 26.500 0.00 1.29 1.645 IO | | | | 3.06 26.583 0.00 1.29 1.636 IO | | | | 3.05 26.667 0.00 1.28 1.627 IO | | | | 3.04 26.750 0.00 1.28 1.618 IO | | | | 3.02 26.833 0.00 1.27 1.609 IO | | | | 3.01 26.917 0.00 1.27 1.601 IO | | | | 3.00 27.000 0.00 1.27 1.592 IO | | | | 2.99 27.083 0.00 1.27 1.583 IO | | | | 2.98 27.167 0.00 1.27 1.574 IO | | | | 2.96 27.250 0.00 1.27 1.566 IO | | | | 2.95 27.333 0.00 1.27 1.557 IO | | | | 2.94 27.417 0.00 1.27 1.548 IO | | | | 2.92 27.500 0.00 1.27 1.539 IO | | | | 2.91 27.583 0.00 1.27 1.531 IO | | | | 2.90 27.667 0.00 1.27 1.522 IO | | | | 2.89 27.750 0.00 1.27 1.513 IO | | | | 2.87 27.833 0.00 1.27 1.504 IO | | | | 2.86 27.917 0.00 1.27 1.496 IO | | | | 2.85 28.000 0.00 1.27 1.487 IO | | | | 2.83 28.083 0.00 1.27 1.478 IO | | | | 2.82 28.167 0.00 1.27 1.469 IO | | | | 2.81 28.250 0.00 1.27 1.461 IO | | | | 2.80 28.333 0.00 1.27 1.452 IO | | | | 2.78 28.417 0.00 1.27 1.443 IO | | | | 2.77 28.500 0.00 1.27 1.434 IO | | | | 2.76 28.583 0.00 1.27 1.426 IO | | | | 2.74 28.667 0.00 1.27 1.417 IO | | | | 2.73 28.750 0.00 1.27 1.408 IO | | | | 2.72 28.833 0.00 1.27 1.399 IO | | | | 2.71 28.917 0.00 1.27 1.391 IO | | | | 2.69 29.000 0.00 1.27 1.382 IO | | | | 2.68 29.083 0.00 1.27 1.373 IO | | | | 2.67 29.167 0.00 1.27 1.364 IO | | | | 2.65 29.250 0.00 1.27 1.356 IO | | | | 2.64 29.333 0.00 1.27 1.347 IO | | | | 2.63 29.417 0.00 1.27 1.338 IO | | | | 2.62 29.500 0.00 1.27 1.330 IO | | | | 2.60 29.583 0.00 1.27 1.321 IO | | | | 2.59 29.667 0.00 1.27 1.312 IO | | | | 2.58 29.750 0.00 1.27 1.303 IO | | | | 2.56 29.833 0.00 1.27 1.295 IO | | | | 2.55 29.917 0.00 1.27 1.286 IO | | | | 2.54 30.000 0.00 1.27 1.277 IO | | | | 2.53 30.083 0.00 1.27 1.268 IO | | | | 2.51 30.167 0.00 1.27 1.260 IO | | | | 2.50 30.250 0.00 1.27 1.251 IO | | | | 2.49 30.333 0.00 1.27 1.242 IO | | | | 2.47 30.417 0.00 1.27 1.233 IO | | | | 2.46 30.500 0.00 1.27 1.225 IO | | | | 2.45 30.583 0.00 1.27 1.216 IO | | | | 2.43 30.667 0.00 1.27 1.207 IO | | | | 2.42 30.750 0.00 1.27 1.198 IO | | | | 2.41 30.833 0.00 1.27 1.190 IO | | | | 2.40 30.917 0.00 1.27 1.181 IO | | | | 2.38 31.000 0.00 1.27 1.172 IO | | | | 2.37 31.083 0.00 1.27 1.163 IO | | | | 2.36 31.167 0.00 1.27 1.155 IO | | | | 2.34 31.250 0.00 1.27 1.146 IO | | | | 2.33 31.333 0.00 1.27 1.137 IO | | | | 2.32 31.417 0.00 1.27 1.128 IO | | | | 2.31 31.500 0.00 1.27 1.120 IO | | | | 2.29 31.583 0.00 1.27 1.111 IO | | | | 2.28 31.667 0.00 1.27 1.102 IO | | | | 2.27 31.750 0.00 1.27 1.093 IO | | | | 2.25 31.833 0.00 1.27 1.085 IO | | | | 2.24 31.917 0.00 1.27 1.076 IO | | | | 2.23 32.000 0.00 1.27 1.067 IO | | | | 2.22 32.083 0.00 1.27 1.058 IO | | | | 2.20 32.167 0.00 1.27 1.050 IO | | | | 2.19 32.250 0.00 1.27 1.041 IO | | | | 2.18 32.333 0.00 1.27 1.032 IO | | | | 2.16 32.417 0.00 1.27 1.023 IO | | | | 2.15 32.500 0.00 1.27 1.015 IO | | | | 2.14 32.583 0.00 1.27 1.006 IO | | | | 2.13 32.667 0.00 1.27 0.997 IO | | | | 2.11 32.750 0.00 1.27 0.988 IO | | | | 2.10 32.833 0.00 1.27 0.980 IO | | | | 2.09 32.917 0.00 1.27 0.971 IO | | | | 2.07 33.000 0.00 1.27 0.962 IO | | | | 2.06 33.083 0.00 1.27 0.953 IO | | | | 2.05 33.167 0.00 1.27 0.945 IO | | | | 2.04 33.250 0.00 1.27 0.936 IO | | | | 2.02 33.333 0.00 1.27 0.927 IO | | | | 2.01 33.417 0.00 1.27 0.918 IO | | | | 2.00 33.500 0.00 1.27 0.910 IO | | | | 1.98 33.583 0.00 1.27 0.901 IO | | | | 1.97 33.667 0.00 1.27 0.892 IO | | | | 1.95 33.750 0.00 1.27 0.883 IO | | | | 1.93 33.833 0.00 1.27 0.875 IO | | | | 1.92 33.917 0.00 1.27 0.866 IO | | | | 1.90 34.000 0.00 1.27 0.857 IO | | | | 1.89 34.083 0.00 1.27 0.848 IO | | | | 1.87 34.167 0.00 1.27 0.840 IO | | | | 1.85 34.250 0.00 1.27 0.831 IO | | | | 1.84 34.333 0.00 1.27 0.822 IO | | | | 1.82 34.417 0.00 1.27 0.813 IO | | | | 1.81 34.500 0.00 1.27 0.805 IO | | | | 1.79 34.583 0.00 1.27 0.796 IO | | | | 1.77 34.667 0.00 1.27 0.787 IO | | | | 1.76 34.750 0.00 1.27 0.778 IO | | | | 1.74 34.833 0.00 1.27 0.770 IO | | | | 1.73 34.917 0.00 1.27 0.761 IO | | | | 1.71 35.000 0.00 1.27 0.752 IO | | | | 1.69 35.083 0.00 1.27 0.743 IO | | | | 1.68 35.167 0.00 1.27 0.735 IO | | | | 1.66 35.250 0.00 1.27 0.726 IO | | | | 1.65 35.333 0.00 1.27 0.717 IO | | | | 1.63 35.417 0.00 1.27 0.708 IO | | | | 1.62 35.500 0.00 1.27 0.700 IO | | | | 1.60 35.583 0.00 1.27 0.691 IO | | | | 1.58 35.667 0.00 1.27 0.682 IO | | | | 1.57 35.750 0.00 1.27 0.674 IO | | | | 1.55 35.833 0.00 1.27 0.665 IO | | | | 1.54 35.917 0.00 1.27 0.656 IO | | | | 1.52 36.000 0.00 1.27 0.647 IO | | | | 1.50 36.083 0.00 1.27 0.639 IO | | | | 1.49 36.167 0.00 1.27 0.630 IO | | | | 1.47 36.250 0.00 1.27 0.621 IO | | | | 1.46 36.333 0.00 1.27 0.612 IO | | | | 1.44 36.417 0.00 1.27 0.604 IO | | | | 1.42 36.500 0.00 1.27 0.595 IO | | | | 1.41 36.583 0.00 1.27 0.586 IO | | | | 1.39 36.667 0.00 1.27 0.577 IO | | | | 1.38 36.750 0.00 1.27 0.569 IO | | | | 1.36 36.833 0.00 1.27 0.560 IO | | | | 1.35 36.917 0.00 1.27 0.551 IO | | | | 1.33 37.000 0.00 1.27 0.542 IO | | | | 1.31 37.083 0.00 1.27 0.534 IO | | | | 1.30 37.167 0.00 1.27 0.525 IO | | | | 1.28 37.250 0.00 1.27 0.516 IO | | | | 1.27 37.333 0.00 1.27 0.507 IO | | | | 1.25 37.417 0.00 1.27 0.499 IO | | | | 1.23 37.500 0.00 1.27 0.490 IO | | | | 1.22 37.583 0.00 1.27 0.481 IO | | | | 1.20 37.667 0.00 1.27 0.472 IO | | | | 1.19 37.750 0.00 1.27 0.464 IO | | | | 1.17 37.833 0.00 1.27 0.455 IO | | | | 1.15 37.917 0.00 1.27 0.446 IO | | | | 1.14 38.000 0.00 1.27 0.437 IO | | | | 1.12 38.083 0.00 1.27 0.429 IO | | | | 1.11 38.167 0.00 1.27 0.420 IO | | | | 1.09 38.250 0.00 1.27 0.411 IO | | | | 1.07 38.333 0.00 1.27 0.402 IO | | | | 1.06 38.417 0.00 1.27 0.394 IO | | | | 1.04 38.500 0.00 1.27 0.385 IO | | | | 1.03 38.583 0.00 1.27 0.376 IO | | | | 1.01 38.667 0.00 1.26 0.367 IO | | | | 0.99 38.750 0.00 1.23 0.359 IO | | | | 0.97 38.833 0.00 1.20 0.350 IO | | | | 0.95 38.917 0.00 1.17 0.342 IO | | | | 0.93 39.000 0.00 1.15 0.334 IO | | | | 0.90 39.083 0.00 1.12 0.326 IO | | | | 0.88 39.167 0.00 1.09 0.319 IO | | | | 0.86 39.250 0.00 1.07 0.311 IO | | | | 0.84 39.333 0.00 1.04 0.304 IO | | | | 0.82 39.417 0.00 1.02 0.297 IO | | | | 0.80 39.500 0.00 1.00 0.290 O | | | | 0.78 39.583 0.00 0.97 0.283 O | | | | 0.77 39.667 0.00 0.95 0.277 O | | | | 0.75 39.750 0.00 0.93 0.270 O | | | | 0.73 39.833 0.00 0.91 0.264 O | | | | 0.71 39.917 0.00 0.88 0.258 O | | | | 0.70 40.000 0.00 0.86 0.252 O | | | | 0.68 40.083 0.00 0.84 0.246 O | | | | 0.66 40.167 0.00 0.82 0.240 O | | | | 0.65 40.250 0.00 0.80 0.234 O | | | | 0.63 40.333 0.00 0.79 0.229 O | | | | 0.62 40.417 0.00 0.77 0.224 O | | | | 0.60 40.500 0.00 0.75 0.218 O | | | | 0.59 40.583 0.00 0.73 0.213 O | | | | 0.58 40.667 0.00 0.72 0.208 O | | | | 0.56 40.750 0.00 0.70 0.203 O | | | | 0.55 40.833 0.00 0.68 0.199 O | | | | 0.54 40.917 0.00 0.67 0.194 O | | | | 0.52 41.000 0.00 0.65 0.190 O | | | | 0.51 41.083 0.00 0.64 0.185 O | | | | 0.50 41.167 0.00 0.62 0.181 O | | | | 0.49 41.250 0.00 0.61 0.177 O | | | | 0.48 41.333 0.00 0.59 0.172 O | | | | 0.47 41.417 0.00 0.58 0.168 O | | | | 0.46 41.500 0.00 0.56 0.164 O | | | | 0.44 41.583 0.00 0.55 0.161 O | | | | 0.43 41.667 0.00 0.54 0.157 O | | | | 0.42 41.750 0.00 0.53 0.153 O | | | | 0.41 41.833 0.00 0.51 0.150 O | | | | 0.40 41.917 0.00 0.50 0.146 O | | | | 0.39 42.000 0.00 0.49 0.143 O | | | | 0.39 42.083 0.00 0.48 0.139 O | | | | 0.38 42.167 0.00 0.47 0.136 O | | | | 0.37 42.250 0.00 0.46 0.133 O | | | | 0.36 42.333 0.00 0.45 0.130 O | | | | 0.35 42.417 0.00 0.44 0.127 O | | | | 0.34 42.500 0.00 0.43 0.124 O | | | | 0.33 42.583 0.00 0.42 0.121 O | | | | 0.33 42.667 0.00 0.41 0.118 O | | | | 0.32 42.750 0.00 0.40 0.115 O | | | | 0.31 42.833 0.00 0.39 0.113 O | | | | 0.30 42.917 0.00 0.38 0.110 O | | | | 0.30 43.000 0.00 0.37 0.107 O | | | | 0.29 43.083 0.00 0.36 0.105 O | | | | 0.28 43.167 0.00 0.35 0.103 O | | | | 0.28 43.250 0.00 0.34 0.100 O | | | | 0.27 43.333 0.00 0.34 0.098 O | | | | 0.26 43.417 0.00 0.33 0.095 O | | | | 0.26 43.500 0.00 0.32 0.093 O | | | | 0.25 43.583 0.00 0.31 0.091 O | | | | 0.25 43.667 0.00 0.31 0.089 O | | | | 0.24 43.750 0.00 0.30 0.087 O | | | | 0.23 43.833 0.00 0.29 0.085 O | | | | 0.23 43.917 0.00 0.28 0.083 O | | | | 0.22 44.000 0.00 0.28 0.081 O | | | | 0.22 44.083 0.00 0.27 0.079 O | | | | 0.21 44.167 0.00 0.26 0.077 O | | | | 0.21 44.250 0.00 0.26 0.075 O | | | | 0.20 44.333 0.00 0.25 0.074 O | | | | 0.20 44.417 0.00 0.25 0.072 O | | | | 0.19 44.500 0.00 0.24 0.070 O | | | | 0.19 44.583 0.00 0.24 0.069 O | | | | 0.19 44.667 0.00 0.23 0.067 O | | | | 0.18 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.22 0.065 O | | | | 0.18 44.833 0.00 0.22 0.064 O | | | | 0.17 44.917 0.00 0.21 0.062 O | | | | 0.17 45.000 0.00 0.21 0.061 O | | | | 0.16 45.083 0.00 0.20 0.060 O | | | | 0.16 45.167 0.00 0.20 0.058 O | | | | 0.16 45.250 0.00 0.19 0.057 O | | | | 0.15 45.333 0.00 0.19 0.055 O | | | | 0.15 45.417 0.00 0.19 0.054 O | | | | 0.15 45.500 0.00 0.18 0.053 O | | | | 0.14 45.583 0.00 0.18 0.052 O | | | | 0.14 45.667 0.00 0.17 0.050 O | | | | 0.14 45.750 0.00 0.17 0.049 O | | | | 0.13 45.833 0.00 0.17 0.048 O | | | | 0.13 45.917 0.00 0.16 0.047 O | | | | 0.13 46.000 0.00 0.16 0.046 O | | | | 0.12 46.083 0.00 0.15 0.045 O | | | | 0.12 46.167 0.00 0.15 0.044 O | | | | 0.12 46.250 0.00 0.15 0.043 O | | | | 0.12 46.333 0.00 0.14 0.042 O | | | | 0.11 46.417 0.00 0.14 0.041 O | | | | 0.11 46.500 0.00 0.14 0.040 O | | | | 0.11 46.583 0.00 0.13 0.036 O | | | | 0.11 46.667 0.00 0.13 0.032 O | | | | 0.10 46.750 0.00 0.13 0.030 O | | | | 0.10 46.833 0.00 0.12 0.028 O | | | | 0.10 46.917 0.00 0.12 0.026 O | | | | 0.10 47.000 0.00 0.12 0.024 O | | | | 0.09 47.083 0.00 0.11 0.022 O | | | | 0.09 47.167 0.00 0.10 0.020 O | | | | 0.09 47.250 0.00 0.09 0.018 O | | | | 0.09 47.333 0.00 0.08 0.016 O | | | | 0.08 47.417 0.00 0.07 0.014 O | | | | 0.07 47.500 0.00 0.06 0.012 O | | | | 0.06 47.583 0.00 0.05 0.010 O | | | | 0.05 47.667 0.00 0.04 0.008 O | | | | 0.04 47.750 0.00 0.03 0.006 O | | | | 0.03 47.833 0.00 0.02 0.004 O | | | | 0.02 47.917 0.00 0.01 0.002 O | | | | 0.01 48.000 0.00 0.00 0.000 O | | | | 0.00 48.083 0.00 0.00 0.000 O | | | | 0.00 48.167 0.00 0.00 0.000 O | | | | 0.00 48.250 0.00 0.00 0.000 O | | | | 0.00 48.333 0.00 0.00 0.000 O | | | | 0.00 48.417 0.00 0.00 0.000 O | | | | 0.00 48.500 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 582 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 1.490 (CFS) Total volume = 4.064 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.2 BASIN ROUTING ANALYSIS DRAINAGE AREA A – 10 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 10 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER A -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH10POSTA.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 52.920 (CFS) Total volume = 6.521 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.370 1.270 0.366 0.374 2.000 0.920 1.270 0.916 0.924 3.000 1.600 1.270 1.596 1.604 4.000 2.340 1.629 2.334 2.346 5.000 3.110 11.600 3.070 3.150 6.000 3.880 20.380 3.810 3.950 7.000 4.630 26.310 4.539 4.721 8.000 5.310 31.130 5.203 5.417 9.000 5.860 35.290 5.738 5.982 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 13.2 26.46 39.69 52.92 (Ft.) 0.083 0.14 0.00 0.000 O | | | | 0.00 0.167 0.81 0.01 0.004 O | | | | 0.01 0.250 1.30 0.04 0.011 O | | | | 0.03 0.333 1.41 0.07 0.020 O | | | | 0.05 0.417 1.43 0.10 0.029 O | | | | 0.08 0.500 1.44 0.13 0.038 O | | | | 0.10 0.583 1.44 0.16 0.047 O | | | | 0.13 0.667 1.45 0.19 0.056 O | | | | 0.15 0.750 1.45 0.22 0.064 O | | | | 0.17 0.833 1.46 0.25 0.073 O | | | | 0.20 0.917 1.46 0.28 0.081 O | | | | 0.22 1.000 1.47 0.31 0.089 O | | | | 0.24 1.083 1.47 0.33 0.097 O | | | | 0.26 1.167 1.47 0.36 0.105 O | | | | 0.28 1.250 1.48 0.39 0.112 O | | | | 0.30 1.333 1.48 0.41 0.120 O | | | | 0.32 1.417 1.49 0.44 0.127 O | | | | 0.34 1.500 1.49 0.46 0.134 O | | | | 0.36 1.583 1.50 0.48 0.141 O | | | | 0.38 1.667 1.50 0.51 0.148 O | | | | 0.40 1.750 1.51 0.53 0.155 O | | | | 0.42 1.833 1.51 0.55 0.162 O | | | | 0.44 1.917 1.52 0.58 0.168 O | | | | 0.45 2.000 1.52 0.60 0.174 O | | | | 0.47 2.083 1.53 0.62 0.181 O | | | | 0.49 2.167 1.53 0.64 0.187 O | | | | 0.51 2.250 1.54 0.66 0.193 O | | | | 0.52 2.333 1.54 0.68 0.199 O | | | | 0.54 2.417 1.55 0.70 0.205 O | | | | 0.55 2.500 1.55 0.72 0.211 O | | | | 0.57 2.583 1.56 0.74 0.216 O | | | | 0.58 2.667 1.56 0.76 0.222 O | | | | 0.60 2.750 1.57 0.78 0.227 O | | | | 0.61 2.833 1.57 0.80 0.233 O | | | | 0.63 2.917 1.58 0.82 0.238 O | | | | 0.64 3.000 1.59 0.83 0.243 O | | | | 0.66 3.083 1.59 0.85 0.248 O | | | | 0.67 3.167 1.60 0.87 0.253 O | | | | 0.68 3.250 1.60 0.89 0.258 O | | | | 0.70 3.333 1.61 0.90 0.263 O | | | | 0.71 3.417 1.61 0.92 0.268 O | | | | 0.72 3.500 1.62 0.94 0.273 O | | | | 0.74 3.583 1.63 0.95 0.278 O | | | | 0.75 3.667 1.63 0.97 0.282 O | | | | 0.76 3.750 1.64 0.98 0.287 O | | | | 0.77 3.833 1.64 1.00 0.291 O | | | | 0.79 3.917 1.65 1.01 0.296 O | | | | 0.80 4.000 1.66 1.03 0.300 OI | | | | 0.81 4.083 1.66 1.04 0.304 OI | | | | 0.82 4.167 1.67 1.06 0.308 OI | | | | 0.83 4.250 1.68 1.07 0.313 OI | | | | 0.84 4.333 1.68 1.09 0.317 OI | | | | 0.86 4.417 1.69 1.10 0.321 OI | | | | 0.87 4.500 1.70 1.12 0.325 OI | | | | 0.88 4.583 1.70 1.13 0.329 OI | | | | 0.89 4.667 1.71 1.14 0.333 OI | | | | 0.90 4.750 1.72 1.16 0.337 OI | | | | 0.91 4.833 1.72 1.17 0.341 OI | | | | 0.92 4.917 1.73 1.18 0.344 OI | | | | 0.93 5.000 1.74 1.19 0.348 OI | | | | 0.94 5.083 1.75 1.21 0.352 OI | | | | 0.95 5.167 1.75 1.22 0.355 OI | | | | 0.96 5.250 1.76 1.23 0.359 OI | | | | 0.97 5.333 1.77 1.25 0.363 OI | | | | 0.98 5.417 1.78 1.26 0.366 OI | | | | 0.99 5.500 1.78 1.27 0.370 OI | | | | 1.00 5.583 1.79 1.27 0.373 OI | | | | 1.01 5.667 1.80 1.27 0.377 OI | | | | 1.01 5.750 1.81 1.27 0.381 OI | | | | 1.02 5.833 1.82 1.27 0.384 OI | | | | 1.03 5.917 1.82 1.27 0.388 OI | | | | 1.03 6.000 1.83 1.27 0.392 OI | | | | 1.04 6.083 1.84 1.27 0.396 OI | | | | 1.05 6.167 1.85 1.27 0.400 OI | | | | 1.05 6.250 1.86 1.27 0.404 OI | | | | 1.06 6.333 1.87 1.27 0.408 OI | | | | 1.07 6.417 1.88 1.27 0.412 OI | | | | 1.08 6.500 1.88 1.27 0.416 OI | | | | 1.08 6.583 1.89 1.27 0.421 OI | | | | 1.09 6.667 1.90 1.27 0.425 OI | | | | 1.10 6.750 1.91 1.27 0.429 OI | | | | 1.11 6.833 1.92 1.27 0.434 OI | | | | 1.12 6.917 1.93 1.27 0.438 OI | | | | 1.12 7.000 1.94 1.27 0.443 OI | | | | 1.13 7.083 1.95 1.27 0.448 OI | | | | 1.14 7.167 1.96 1.27 0.452 OI | | | | 1.15 7.250 1.97 1.27 0.457 OI | | | | 1.16 7.333 1.98 1.27 0.462 OI | | | | 1.17 7.417 1.99 1.27 0.467 OI | | | | 1.18 7.500 2.00 1.27 0.472 OI | | | | 1.19 7.583 2.01 1.27 0.477 OI | | | | 1.19 7.667 2.02 1.27 0.482 OI | | | | 1.20 7.750 2.04 1.27 0.487 OI | | | | 1.21 7.833 2.05 1.27 0.493 OI | | | | 1.22 7.917 2.06 1.27 0.498 OI | | | | 1.23 8.000 2.07 1.27 0.504 OI | | | | 1.24 8.083 2.08 1.27 0.509 OI | | | | 1.25 8.167 2.09 1.27 0.515 OI | | | | 1.26 8.250 2.11 1.27 0.520 OI | | | | 1.27 8.333 2.12 1.27 0.526 OI | | | | 1.28 8.417 2.13 1.27 0.532 OI | | | | 1.29 8.500 2.14 1.27 0.538 OI | | | | 1.31 8.583 2.16 1.27 0.544 OI | | | | 1.32 8.667 2.17 1.27 0.550 OI | | | | 1.33 8.750 2.18 1.27 0.557 OI | | | | 1.34 8.833 2.20 1.27 0.563 OI | | | | 1.35 8.917 2.21 1.27 0.569 OI | | | | 1.36 9.000 2.23 1.27 0.576 OI | | | | 1.37 9.083 2.24 1.27 0.583 OI | | | | 1.39 9.167 2.26 1.27 0.589 OI | | | | 1.40 9.250 2.27 1.27 0.596 OI | | | | 1.41 9.333 2.29 1.27 0.603 OI | | | | 1.42 9.417 2.30 1.27 0.610 OI | | | | 1.44 9.500 2.32 1.27 0.617 OI | | | | 1.45 9.583 2.33 1.27 0.625 OI | | | | 1.46 9.667 2.35 1.27 0.632 OI | | | | 1.48 9.750 2.37 1.27 0.640 OI | | | | 1.49 9.833 2.39 1.27 0.647 OI | | | | 1.50 9.917 2.40 1.27 0.655 OI | | | | 1.52 10.000 2.42 1.27 0.663 OI | | | | 1.53 10.083 2.44 1.27 0.671 OI | | | | 1.55 10.167 2.46 1.27 0.679 OI | | | | 1.56 10.250 2.48 1.27 0.687 OI | | | | 1.58 10.333 2.50 1.27 0.696 OI | | | | 1.59 10.417 2.52 1.27 0.704 OI | | | | 1.61 10.500 2.54 1.27 0.713 OI | | | | 1.62 10.583 2.56 1.27 0.722 OI | | | | 1.64 10.667 2.58 1.27 0.731 OI | | | | 1.66 10.750 2.60 1.27 0.740 OI | | | | 1.67 10.833 2.63 1.27 0.749 OI | | | | 1.69 10.917 2.65 1.27 0.758 OI | | | | 1.71 11.000 2.67 1.27 0.768 OI | | | | 1.72 11.083 2.70 1.27 0.778 OI | | | | 1.74 11.167 2.72 1.27 0.788 OI | | | | 1.76 11.250 2.75 1.27 0.798 OI | | | | 1.78 11.333 2.77 1.27 0.808 OI | | | | 1.80 11.417 2.80 1.27 0.818 OI | | | | 1.82 11.500 2.83 1.27 0.829 OI | | | | 1.83 11.583 2.86 1.27 0.840 OI | | | | 1.85 11.667 2.89 1.27 0.851 OI | | | | 1.87 11.750 2.92 1.27 0.862 OI | | | | 1.89 11.833 2.95 1.27 0.874 OI | | | | 1.92 11.917 2.98 1.27 0.885 OI | | | | 1.94 12.000 3.01 1.27 0.897 OI | | | | 1.96 12.083 3.10 1.27 0.909 OI | | | | 1.98 12.167 3.38 1.27 0.923 O I | | | | 2.00 12.250 3.60 1.27 0.938 O I | | | | 2.03 12.333 3.67 1.27 0.955 O I | | | | 2.05 12.417 3.72 1.27 0.971 O I | | | | 2.08 12.500 3.76 1.27 0.988 O I | | | | 2.10 12.583 3.80 1.27 1.006 O I | | | | 2.13 12.667 3.85 1.27 1.023 O I | | | | 2.15 12.750 3.89 1.27 1.041 O I | | | | 2.18 12.833 3.94 1.27 1.059 O I | | | | 2.20 12.917 3.99 1.27 1.078 O I | | | | 2.23 13.000 4.04 1.27 1.097 O I | | | | 2.26 13.083 4.09 1.27 1.116 O I | | | | 2.29 13.167 4.15 1.27 1.136 O I | | | | 2.32 13.250 4.20 1.27 1.156 O I | | | | 2.35 13.333 4.26 1.27 1.176 O I | | | | 2.38 13.417 4.32 1.27 1.197 O I | | | | 2.41 13.500 4.39 1.27 1.218 O I | | | | 2.44 13.583 4.45 1.27 1.240 O I | | | | 2.47 13.667 4.53 1.27 1.262 O I | | | | 2.50 13.750 4.60 1.27 1.285 O I | | | | 2.54 13.833 4.68 1.27 1.308 O I | | | | 2.57 13.917 4.76 1.27 1.332 O I | | | | 2.61 14.000 4.85 1.27 1.356 O I | | | | 2.64 14.083 4.94 1.27 1.381 O I | | | | 2.68 14.167 5.04 1.27 1.407 O I | | | | 2.72 14.250 5.15 1.27 1.433 O I | | | | 2.75 14.333 5.26 1.27 1.460 O I | | | | 2.79 14.417 5.38 1.27 1.488 O I | | | | 2.84 14.500 5.51 1.27 1.517 O I | | | | 2.88 14.583 5.64 1.27 1.546 O I | | | | 2.92 14.667 5.79 1.27 1.577 O I | | | | 2.97 14.750 5.95 1.27 1.609 O I | | | | 3.01 14.833 6.13 1.29 1.641 O I | | | | 3.06 14.917 6.32 1.31 1.675 O I | | | | 3.10 15.000 6.53 1.32 1.710 O I | | | | 3.15 15.083 6.76 1.34 1.747 O I | | | | 3.20 15.167 7.03 1.36 1.785 O I | | | | 3.25 15.250 7.32 1.38 1.825 O I | | | | 3.30 15.333 7.67 1.40 1.867 O I | | | | 3.36 15.417 7.87 1.42 1.911 O I | | | | 3.42 15.500 7.43 1.44 1.954 O I | | | | 3.48 15.583 7.30 1.46 1.995 O I | | | | 3.53 15.667 7.87 1.48 2.037 O I | | | | 3.59 15.750 8.69 1.50 2.083 O I | | | | 3.65 15.833 9.98 1.53 2.137 O I | | | | 3.73 15.917 11.88 1.56 2.202 O I| | | | 3.81 16.000 16.05 1.60 2.287 O |I | | | 3.93 16.083 27.77 2.71 2.423 |O | I | | 4.11 16.167 52.92 5.92 2.671 | O | | | I 4.43 16.250 39.64 9.37 2.937 | O | | I| | 4.78 16.333 16.89 10.98 3.062 | O | I | | | 4.94 16.417 10.29 11.20 3.079 | O | | | | 4.96 16.500 8.31 11.04 3.067 | IO | | | | 4.94 16.583 7.90 10.79 3.047 | I O | | | | 4.92 16.667 7.29 10.52 3.026 | I O | | | | 4.89 16.750 6.75 10.22 3.003 | I O | | | | 4.86 16.833 6.31 9.90 2.979 | I O | | | | 4.83 16.917 5.94 9.58 2.954 | I O | | | | 4.80 17.000 5.63 9.26 2.929 | I O | | | | 4.76 17.083 5.37 8.94 2.904 | I O | | | | 4.73 17.167 5.13 8.62 2.880 | I O | | | | 4.70 17.250 4.93 8.31 2.856 | I O | | | | 4.67 17.333 4.75 8.02 2.833 | I O | | | | 4.64 17.417 4.59 7.73 2.811 | I O | | | | 4.61 17.500 4.45 7.46 2.790 | I O | | | | 4.58 17.583 4.31 7.19 2.770 | I O | | | | 4.56 17.667 4.19 6.94 2.750 | I O | | | | 4.53 17.750 4.08 6.70 2.732 | I O | | | | 4.51 17.833 3.98 6.48 2.714 | IO | | | | 4.49 17.917 3.89 6.26 2.698 | IO | | | | 4.46 18.000 3.80 6.05 2.682 | IO | | | | 4.44 18.083 3.67 5.85 2.666 | IO | | | | 4.42 18.167 3.34 5.65 2.651 | IO | | | | 4.40 18.250 3.09 5.45 2.635 |I O | | | | 4.38 18.333 2.98 5.24 2.619 |I O | | | | 4.36 18.417 2.91 5.04 2.604 |I O | | | | 4.34 18.500 2.85 4.86 2.590 |IO | | | | 4.32 18.583 2.80 4.69 2.576 |IO | | | | 4.31 18.667 2.74 4.52 2.563 |IO | | | | 4.29 18.750 2.69 4.37 2.552 |IO | | | | 4.27 18.833 2.65 4.22 2.540 |IO | | | | 4.26 18.917 2.60 4.09 2.530 |IO | | | | 4.25 19.000 2.56 3.96 2.520 |IO | | | | 4.23 19.083 2.52 3.84 2.511 |IO | | | | 4.22 19.167 2.48 3.72 2.502 |IO | | | | 4.21 19.250 2.44 3.61 2.493 |IO | | | | 4.20 19.333 2.40 3.51 2.485 |IO | | | | 4.19 19.417 2.37 3.42 2.478 |IO | | | | 4.18 19.500 2.33 3.32 2.471 |IO | | | | 4.17 19.583 2.30 3.24 2.464 |O | | | | 4.16 19.667 2.27 3.16 2.458 |O | | | | 4.15 19.750 2.24 3.08 2.452 |O | | | | 4.15 19.833 2.21 3.01 2.446 |O | | | | 4.14 19.917 2.18 2.94 2.441 |O | | | | 4.13 20.000 2.16 2.87 2.436 |O | | | | 4.12 20.083 2.13 2.81 2.431 |O | | | | 4.12 20.167 2.10 2.75 2.427 |O | | | | 4.11 20.250 2.08 2.69 2.422 |O | | | | 4.11 20.333 2.06 2.64 2.418 |O | | | | 4.10 20.417 2.03 2.59 2.414 |O | | | | 4.10 20.500 2.01 2.54 2.410 |O | | | | 4.09 20.583 1.99 2.50 2.407 |O | | | | 4.09 20.667 1.97 2.45 2.404 |O | | | | 4.08 20.750 1.95 2.41 2.400 |O | | | | 4.08 20.833 1.93 2.37 2.397 |O | | | | 4.07 20.917 1.91 2.33 2.394 |O | | | | 4.07 21.000 1.89 2.29 2.391 |O | | | | 4.07 21.083 1.87 2.26 2.389 |O | | | | 4.06 21.167 1.86 2.23 2.386 |O | | | | 4.06 21.250 1.84 2.19 2.384 |O | | | | 4.06 21.333 1.82 2.16 2.381 |O | | | | 4.05 21.417 1.81 2.13 2.379 |O | | | | 4.05 21.500 1.79 2.10 2.377 |O | | | | 4.05 21.583 1.77 2.08 2.375 |O | | | | 4.04 21.667 1.76 2.05 2.373 |O | | | | 4.04 21.750 1.74 2.02 2.371 |O | | | | 4.04 21.833 1.73 2.00 2.369 |O | | | | 4.04 21.917 1.72 1.98 2.367 |O | | | | 4.03 22.000 1.70 1.95 2.365 |O | | | | 4.03 22.083 1.69 1.93 2.363 |O | | | | 4.03 22.167 1.68 1.91 2.362 |O | | | | 4.03 22.250 1.66 1.89 2.360 |O | | | | 4.03 22.333 1.65 1.87 2.359 IO | | | | 4.02 22.417 1.64 1.85 2.357 IO | | | | 4.02 22.500 1.63 1.83 2.356 IO | | | | 4.02 22.583 1.61 1.81 2.354 IO | | | | 4.02 22.667 1.60 1.80 2.353 IO | | | | 4.02 22.750 1.59 1.78 2.352 IO | | | | 4.02 22.833 1.58 1.76 2.350 IO | | | | 4.01 22.917 1.57 1.75 2.349 IO | | | | 4.01 23.000 1.56 1.73 2.348 IO | | | | 4.01 23.083 1.55 1.72 2.347 IO | | | | 4.01 23.167 1.54 1.70 2.346 IO | | | | 4.01 23.250 1.53 1.69 2.344 IO | | | | 4.01 23.333 1.52 1.67 2.343 IO | | | | 4.00 23.417 1.51 1.66 2.342 IO | | | | 4.00 23.500 1.50 1.64 2.341 O | | | | 4.00 23.583 1.49 1.63 2.340 O | | | | 4.00 23.667 1.48 1.63 2.339 O | | | | 4.00 23.750 1.47 1.63 2.338 O | | | | 4.00 23.833 1.46 1.63 2.337 O | | | | 4.00 23.917 1.45 1.63 2.336 O | | | | 3.99 24.000 1.44 1.63 2.335 O | | | | 3.99 24.083 1.30 1.63 2.333 O | | | | 3.99 24.167 0.62 1.62 2.328 O | | | | 3.98 24.250 0.13 1.62 2.320 O | | | | 3.97 24.333 0.02 1.61 2.309 O | | | | 3.96 24.417 0.00 1.61 2.298 O | | | | 3.94 24.500 0.00 1.60 2.287 O | | | | 3.93 24.583 0.00 1.60 2.276 O | | | | 3.91 24.667 0.00 1.59 2.265 O | | | | 3.90 24.750 0.00 1.59 2.254 O | | | | 3.88 24.833 0.00 1.58 2.243 O | | | | 3.87 24.917 0.00 1.58 2.232 O | | | | 3.85 25.000 0.00 1.57 2.221 O | | | | 3.84 25.083 0.00 1.57 2.211 O | | | | 3.83 25.167 0.00 1.56 2.200 O | | | | 3.81 25.250 0.00 1.56 2.189 O | | | | 3.80 25.333 0.00 1.55 2.178 O | | | | 3.78 25.417 0.00 1.55 2.168 O | | | | 3.77 25.500 0.00 1.54 2.157 O | | | | 3.75 25.583 0.00 1.54 2.146 O | | | | 3.74 25.667 0.00 1.53 2.136 O | | | | 3.72 25.750 0.00 1.52 2.125 O | | | | 3.71 25.833 0.00 1.52 2.115 O | | | | 3.70 25.917 0.00 1.51 2.104 O | | | | 3.68 26.000 0.00 1.51 2.094 O | | | | 3.67 26.083 0.00 1.50 2.084 O | | | | 3.65 26.167 0.00 1.50 2.073 O | | | | 3.64 26.250 0.00 1.49 2.063 O | | | | 3.63 26.333 0.00 1.49 2.053 O | | | | 3.61 26.417 0.00 1.48 2.043 O | | | | 3.60 26.500 0.00 1.48 2.032 O | | | | 3.58 26.583 0.00 1.47 2.022 O | | | | 3.57 26.667 0.00 1.47 2.012 O | | | | 3.56 26.750 0.00 1.46 2.002 O | | | | 3.54 26.833 0.00 1.46 1.992 O | | | | 3.53 26.917 0.00 1.46 1.982 O | | | | 3.52 27.000 0.00 1.45 1.972 O | | | | 3.50 27.083 0.00 1.45 1.962 O | | | | 3.49 27.167 0.00 1.44 1.952 O | | | | 3.48 27.250 0.00 1.44 1.942 O | | | | 3.46 27.333 0.00 1.43 1.932 O | | | | 3.45 27.417 0.00 1.43 1.922 O | | | | 3.44 27.500 0.00 1.42 1.912 O | | | | 3.42 27.583 0.00 1.42 1.903 O | | | | 3.41 27.667 0.00 1.41 1.893 O | | | | 3.40 27.750 0.00 1.41 1.883 O | | | | 3.38 27.833 0.00 1.40 1.874 O | | | | 3.37 27.917 0.00 1.40 1.864 O | | | | 3.36 28.000 0.00 1.39 1.854 O | | | | 3.34 28.083 0.00 1.39 1.845 O | | | | 3.33 28.167 0.00 1.38 1.835 O | | | | 3.32 28.250 0.00 1.38 1.826 O | | | | 3.30 28.333 0.00 1.37 1.816 O | | | | 3.29 28.417 0.00 1.37 1.807 O | | | | 3.28 28.500 0.00 1.37 1.797 O | | | | 3.27 28.583 0.00 1.36 1.788 O | | | | 3.25 28.667 0.00 1.36 1.779 O | | | | 3.24 28.750 0.00 1.35 1.769 O | | | | 3.23 28.833 0.00 1.35 1.760 O | | | | 3.22 28.917 0.00 1.34 1.751 O | | | | 3.20 29.000 0.00 1.34 1.741 O | | | | 3.19 29.083 0.00 1.33 1.732 O | | | | 3.18 29.167 0.00 1.33 1.723 O | | | | 3.17 29.250 0.00 1.33 1.714 O | | | | 3.15 29.333 0.00 1.32 1.705 O | | | | 3.14 29.417 0.00 1.32 1.696 O | | | | 3.13 29.500 0.00 1.31 1.687 O | | | | 3.12 29.583 0.00 1.31 1.678 O | | | | 3.10 29.667 0.00 1.30 1.669 O | | | | 3.09 29.750 0.00 1.30 1.660 O | | | | 3.08 29.833 0.00 1.29 1.651 O | | | | 3.07 29.917 0.00 1.29 1.642 O | | | | 3.06 30.000 0.00 1.29 1.633 O | | | | 3.04 30.083 0.00 1.28 1.624 O | | | | 3.03 30.167 0.00 1.28 1.615 O | | | | 3.02 30.250 0.00 1.27 1.607 O | | | | 3.01 30.333 0.00 1.27 1.598 O | | | | 3.00 30.417 0.00 1.27 1.589 O | | | | 2.98 30.500 0.00 1.27 1.580 O | | | | 2.97 30.583 0.00 1.27 1.572 O | | | | 2.96 30.667 0.00 1.27 1.563 O | | | | 2.95 30.750 0.00 1.27 1.554 O | | | | 2.93 30.833 0.00 1.27 1.545 O | | | | 2.92 30.917 0.00 1.27 1.537 O | | | | 2.91 31.000 0.00 1.27 1.528 O | | | | 2.89 31.083 0.00 1.27 1.519 O | | | | 2.88 31.167 0.00 1.27 1.510 O | | | | 2.87 31.250 0.00 1.27 1.502 O | | | | 2.86 31.333 0.00 1.27 1.493 O | | | | 2.84 31.417 0.00 1.27 1.484 O | | | | 2.83 31.500 0.00 1.27 1.475 O | | | | 2.82 31.583 0.00 1.27 1.467 O | | | | 2.80 31.667 0.00 1.27 1.458 O | | | | 2.79 31.750 0.00 1.27 1.449 O | | | | 2.78 31.833 0.00 1.27 1.440 O | | | | 2.77 31.917 0.00 1.27 1.432 O | | | | 2.75 32.000 0.00 1.27 1.423 O | | | | 2.74 32.083 0.00 1.27 1.414 O | | | | 2.73 32.167 0.00 1.27 1.405 O | | | | 2.71 32.250 0.00 1.27 1.397 O | | | | 2.70 32.333 0.00 1.27 1.388 O | | | | 2.69 32.417 0.00 1.27 1.379 O | | | | 2.68 32.500 0.00 1.27 1.370 O | | | | 2.66 32.583 0.00 1.27 1.362 O | | | | 2.65 32.667 0.00 1.27 1.353 O | | | | 2.64 32.750 0.00 1.27 1.344 O | | | | 2.62 32.833 0.00 1.27 1.335 O | | | | 2.61 32.917 0.00 1.27 1.327 O | | | | 2.60 33.000 0.00 1.27 1.318 O | | | | 2.59 33.083 0.00 1.27 1.309 O | | | | 2.57 33.167 0.00 1.27 1.300 O | | | | 2.56 33.250 0.00 1.27 1.292 O | | | | 2.55 33.333 0.00 1.27 1.283 O | | | | 2.53 33.417 0.00 1.27 1.274 O | | | | 2.52 33.500 0.00 1.27 1.265 O | | | | 2.51 33.583 0.00 1.27 1.257 O | | | | 2.50 33.667 0.00 1.27 1.248 O | | | | 2.48 33.750 0.00 1.27 1.239 O | | | | 2.47 33.833 0.00 1.27 1.230 O | | | | 2.46 33.917 0.00 1.27 1.222 O | | | | 2.44 34.000 0.00 1.27 1.213 O | | | | 2.43 34.083 0.00 1.27 1.204 O | | | | 2.42 34.167 0.00 1.27 1.195 O | | | | 2.41 34.250 0.00 1.27 1.187 O | | | | 2.39 34.333 0.00 1.27 1.178 O | | | | 2.38 34.417 0.00 1.27 1.169 O | | | | 2.37 34.500 0.00 1.27 1.160 O | | | | 2.35 34.583 0.00 1.27 1.152 O | | | | 2.34 34.667 0.00 1.27 1.143 O | | | | 2.33 34.750 0.00 1.27 1.134 O | | | | 2.31 34.833 0.00 1.27 1.125 O | | | | 2.30 34.917 0.00 1.27 1.117 O | | | | 2.29 35.000 0.00 1.27 1.108 O | | | | 2.28 35.083 0.00 1.27 1.099 O | | | | 2.26 35.167 0.00 1.27 1.090 O | | | | 2.25 35.250 0.00 1.27 1.082 O | | | | 2.24 35.333 0.00 1.27 1.073 O | | | | 2.22 35.417 0.00 1.27 1.064 O | | | | 2.21 35.500 0.00 1.27 1.055 O | | | | 2.20 35.583 0.00 1.27 1.047 O | | | | 2.19 35.667 0.00 1.27 1.038 O | | | | 2.17 35.750 0.00 1.27 1.029 O | | | | 2.16 35.833 0.00 1.27 1.020 O | | | | 2.15 35.917 0.00 1.27 1.012 O | | | | 2.13 36.000 0.00 1.27 1.003 O | | | | 2.12 36.083 0.00 1.27 0.994 O | | | | 2.11 36.167 0.00 1.27 0.985 O | | | | 2.10 36.250 0.00 1.27 0.977 O | | | | 2.08 36.333 0.00 1.27 0.968 O | | | | 2.07 36.417 0.00 1.27 0.959 O | | | | 2.06 36.500 0.00 1.27 0.951 O | | | | 2.04 36.583 0.00 1.27 0.942 O | | | | 2.03 36.667 0.00 1.27 0.933 O | | | | 2.02 36.750 0.00 1.27 0.924 O | | | | 2.01 36.833 0.00 1.27 0.916 O | | | | 1.99 36.917 0.00 1.27 0.907 O | | | | 1.98 37.000 0.00 1.27 0.898 O | | | | 1.96 37.083 0.00 1.27 0.889 O | | | | 1.94 37.167 0.00 1.27 0.881 O | | | | 1.93 37.250 0.00 1.27 0.872 O | | | | 1.91 37.333 0.00 1.27 0.863 O | | | | 1.90 37.417 0.00 1.27 0.854 O | | | | 1.88 37.500 0.00 1.27 0.846 O | | | | 1.86 37.583 0.00 1.27 0.837 O | | | | 1.85 37.667 0.00 1.27 0.828 O | | | | 1.83 37.750 0.00 1.27 0.819 O | | | | 1.82 37.833 0.00 1.27 0.811 O | | | | 1.80 37.917 0.00 1.27 0.802 O | | | | 1.79 38.000 0.00 1.27 0.793 O | | | | 1.77 38.083 0.00 1.27 0.784 O | | | | 1.75 38.167 0.00 1.27 0.776 O | | | | 1.74 38.250 0.00 1.27 0.767 O | | | | 1.72 38.333 0.00 1.27 0.758 O | | | | 1.71 38.417 0.00 1.27 0.749 O | | | | 1.69 38.500 0.00 1.27 0.741 O | | | | 1.67 38.583 0.00 1.27 0.732 O | | | | 1.66 38.667 0.00 1.27 0.723 O | | | | 1.64 38.750 0.00 1.27 0.714 O | | | | 1.63 38.833 0.00 1.27 0.706 O | | | | 1.61 38.917 0.00 1.27 0.697 O | | | | 1.59 39.000 0.00 1.27 0.688 O | | | | 1.58 39.083 0.00 1.27 0.679 O | | | | 1.56 39.167 0.00 1.27 0.671 O | | | | 1.55 39.250 0.00 1.27 0.662 O | | | | 1.53 39.333 0.00 1.27 0.653 O | | | | 1.51 39.417 0.00 1.27 0.644 O | | | | 1.50 39.500 0.00 1.27 0.636 O | | | | 1.48 39.583 0.00 1.27 0.627 O | | | | 1.47 39.667 0.00 1.27 0.618 O | | | | 1.45 39.750 0.00 1.27 0.609 O | | | | 1.44 39.833 0.00 1.27 0.601 O | | | | 1.42 39.917 0.00 1.27 0.592 O | | | | 1.40 40.000 0.00 1.27 0.583 O | | | | 1.39 40.083 0.00 1.27 0.574 O | | | | 1.37 40.167 0.00 1.27 0.566 O | | | | 1.36 40.250 0.00 1.27 0.557 O | | | | 1.34 40.333 0.00 1.27 0.548 O | | | | 1.32 40.417 0.00 1.27 0.539 O | | | | 1.31 40.500 0.00 1.27 0.531 O | | | | 1.29 40.583 0.00 1.27 0.522 O | | | | 1.28 40.667 0.00 1.27 0.513 O | | | | 1.26 40.750 0.00 1.27 0.504 O | | | | 1.24 40.833 0.00 1.27 0.496 O | | | | 1.23 40.917 0.00 1.27 0.487 O | | | | 1.21 41.000 0.00 1.27 0.478 O | | | | 1.20 41.083 0.00 1.27 0.469 O | | | | 1.18 41.167 0.00 1.27 0.461 O | | | | 1.16 41.250 0.00 1.27 0.452 O | | | | 1.15 41.333 0.00 1.27 0.443 O | | | | 1.13 41.417 0.00 1.27 0.434 O | | | | 1.12 41.500 0.00 1.27 0.426 O | | | | 1.10 41.583 0.00 1.27 0.417 O | | | | 1.09 41.667 0.00 1.27 0.408 O | | | | 1.07 41.750 0.00 1.27 0.399 O | | | | 1.05 41.833 0.00 1.27 0.391 O | | | | 1.04 41.917 0.00 1.27 0.382 O | | | | 1.02 42.000 0.00 1.27 0.373 O | | | | 1.01 42.083 0.00 1.25 0.365 O | | | | 0.99 42.167 0.00 1.22 0.356 O | | | | 0.96 42.250 0.00 1.19 0.348 O | | | | 0.94 42.333 0.00 1.17 0.340 O | | | | 0.92 42.417 0.00 1.14 0.332 O | | | | 0.90 42.500 0.00 1.11 0.324 O | | | | 0.88 42.583 0.00 1.09 0.316 O | | | | 0.85 42.667 0.00 1.06 0.309 O | | | | 0.84 42.750 0.00 1.04 0.302 O | | | | 0.82 42.833 0.00 1.01 0.295 O | | | | 0.80 42.917 0.00 0.99 0.288 O | | | | 0.78 43.000 0.00 0.96 0.281 O | | | | 0.76 43.083 0.00 0.94 0.275 O | | | | 0.74 43.167 0.00 0.92 0.268 O | | | | 0.72 43.250 0.00 0.90 0.262 O | | | | 0.71 43.333 0.00 0.88 0.256 O | | | | 0.69 43.417 0.00 0.86 0.250 O | | | | 0.67 43.500 0.00 0.84 0.244 O | | | | 0.66 43.583 0.00 0.82 0.238 O | | | | 0.64 43.667 0.00 0.80 0.233 O | | | | 0.63 43.750 0.00 0.78 0.227 O | | | | 0.61 43.833 0.00 0.76 0.222 O | | | | 0.60 43.917 0.00 0.74 0.217 O | | | | 0.59 44.000 0.00 0.73 0.212 O | | | | 0.57 44.083 0.00 0.71 0.207 O | | | | 0.56 44.167 0.00 0.69 0.202 O | | | | 0.55 44.250 0.00 0.68 0.197 O | | | | 0.53 44.333 0.00 0.66 0.193 O | | | | 0.52 44.417 0.00 0.65 0.188 O | | | | 0.51 44.500 0.00 0.63 0.184 O | | | | 0.50 44.583 0.00 0.62 0.179 O | | | | 0.48 44.667 0.00 0.60 0.175 O | | | | 0.47 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.59 0.171 O | | | | 0.46 44.833 0.00 0.57 0.167 O | | | | 0.45 44.917 0.00 0.56 0.163 O | | | | 0.44 45.000 0.00 0.55 0.159 O | | | | 0.43 45.083 0.00 0.53 0.156 O | | | | 0.42 45.167 0.00 0.52 0.152 O | | | | 0.41 45.250 0.00 0.51 0.148 O | | | | 0.40 45.333 0.00 0.50 0.145 O | | | | 0.39 45.417 0.00 0.49 0.142 O | | | | 0.38 45.500 0.00 0.47 0.138 O | | | | 0.37 45.583 0.00 0.46 0.135 O | | | | 0.37 45.667 0.00 0.45 0.132 O | | | | 0.36 45.750 0.00 0.44 0.129 O | | | | 0.35 45.833 0.00 0.43 0.126 O | | | | 0.34 45.917 0.00 0.42 0.123 O | | | | 0.33 46.000 0.00 0.41 0.120 O | | | | 0.32 46.083 0.00 0.40 0.117 O | | | | 0.31 46.167 0.00 0.39 0.114 O | | | | 0.30 46.250 0.00 0.38 0.112 O | | | | 0.28 46.333 0.00 0.37 0.109 O | | | | 0.26 46.417 0.00 0.37 0.107 O | | | | 0.24 46.500 0.00 0.36 0.104 O | | | | 0.23 46.583 0.00 0.35 0.102 O | | | | 0.14 46.667 0.00 0.34 0.099 O | | | | 0.19 46.750 0.00 0.33 0.097 O | | | | 0.18 46.833 0.00 0.33 0.095 O | | | | 0.17 46.917 0.00 0.32 0.093 O | | | | 0.16 47.000 0.00 0.31 0.090 O | | | | 0.14 47.083 0.00 0.30 0.088 O | | | | 0.13 47.167 0.00 0.30 0.086 O | | | | 0.11 47.250 0.00 0.29 0.084 O | | | | 0.10 47.333 0.00 0.28 0.082 O | | | | 0.09 47.417 0.00 0.28 0.080 O | | | | 0.08 47.500 0.00 0.27 0.078 O | | | | 0.07 47.583 0.00 0.26 0.077 O | | | | 0.06 47.667 0.00 0.26 0.075 O | | | | 0.05 47.750 0.00 0.25 0.073 O | | | | 0.04 47.833 0.00 0.24 0.071 O | | | | 0.02 47.917 0.00 0.24 0.070 O | | | | 0.01 48.000 0.00 0.00 0.000 O | | | | 0.00 48.083 0.00 0.00 0.000 O | | | | 0.00 48.167 0.00 0.00 0.000 O | | | | 0.00 48.250 0.00 0.00 0.000 O | | | | 0.00 48.333 0.00 0.00 0.000 O | | | | 0.00 48.417 0.00 0.00 0.000 O | | | | 0.00 48.500 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 582 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 11.203 (CFS) Total volume = 6.521 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.3 BASIN ROUTING ANALYSIS DRAINAGE AREA A – 25 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 25 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER A -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH25POSTA.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 66.424 (CFS) Total volume = 7.916 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.370 1.270 0.366 0.374 2.000 0.920 1.270 0.916 0.924 3.000 1.600 1.270 1.596 1.604 4.000 2.340 1.629 2.334 2.346 5.000 3.110 11.600 3.070 3.150 6.000 3.880 20.380 3.810 3.950 7.000 4.630 26.310 4.539 4.721 8.000 5.310 31.130 5.203 5.417 9.000 5.860 35.290 5.738 5.982 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 16.6 33.21 49.82 66.42 (Ft.) 0.083 0.16 0.00 0.001 O | | | | 0.00 0.167 0.98 0.02 0.004 O | | | | 0.01 0.250 1.57 0.04 0.013 O | | | | 0.04 0.333 1.70 0.08 0.024 O | | | | 0.06 0.417 1.73 0.12 0.035 O | | | | 0.09 0.500 1.74 0.16 0.046 O | | | | 0.12 0.583 1.74 0.19 0.057 O | | | | 0.15 0.667 1.75 0.23 0.067 O | | | | 0.18 0.750 1.75 0.27 0.078 O | | | | 0.21 0.833 1.76 0.30 0.088 O | | | | 0.24 0.917 1.76 0.34 0.098 O | | | | 0.26 1.000 1.77 0.37 0.107 O | | | | 0.29 1.083 1.77 0.40 0.117 O | | | | 0.32 1.167 1.78 0.43 0.126 O | | | | 0.34 1.250 1.78 0.46 0.135 O | | | | 0.37 1.333 1.79 0.50 0.144 O | | | | 0.39 1.417 1.80 0.53 0.153 O | | | | 0.41 1.500 1.80 0.56 0.162 O | | | | 0.44 1.583 1.81 0.58 0.170 O | | | | 0.46 1.667 1.81 0.61 0.179 O | | | | 0.48 1.750 1.82 0.64 0.187 O | | | | 0.51 1.833 1.82 0.67 0.195 O | | | | 0.53 1.917 1.83 0.70 0.203 O | | | | 0.55 2.000 1.84 0.72 0.211 O | | | | 0.57 2.083 1.84 0.75 0.218 O | | | | 0.59 2.167 1.85 0.77 0.226 O | | | | 0.61 2.250 1.86 0.80 0.233 O | | | | 0.63 2.333 1.86 0.82 0.240 O | | | | 0.65 2.417 1.87 0.85 0.247 O | | | | 0.67 2.500 1.87 0.87 0.254 O | | | | 0.69 2.583 1.88 0.90 0.261 O | | | | 0.71 2.667 1.89 0.92 0.268 O | | | | 0.72 2.750 1.89 0.94 0.274 O | | | | 0.74 2.833 1.90 0.96 0.281 O | | | | 0.76 2.917 1.91 0.99 0.287 O | | | | 0.78 3.000 1.91 1.01 0.294 O | | | | 0.79 3.083 1.92 1.03 0.300 O | | | | 0.81 3.167 1.93 1.05 0.306 O | | | | 0.83 3.250 1.93 1.07 0.312 O | | | | 0.84 3.333 1.94 1.09 0.318 O | | | | 0.86 3.417 1.95 1.11 0.324 O | | | | 0.87 3.500 1.96 1.13 0.329 O | | | | 0.89 3.583 1.96 1.15 0.335 O | | | | 0.91 3.667 1.97 1.17 0.341 O | | | | 0.92 3.750 1.98 1.19 0.346 O | | | | 0.94 3.833 1.99 1.21 0.351 O | | | | 0.95 3.917 1.99 1.22 0.357 O | | | | 0.96 4.000 2.00 1.24 0.362 O | | | | 0.98 4.083 2.01 1.26 0.367 O | | | | 0.99 4.167 2.02 1.27 0.372 O | | | | 1.00 4.250 2.02 1.27 0.378 O | | | | 1.01 4.333 2.03 1.27 0.383 O | | | | 1.02 4.417 2.04 1.27 0.388 O | | | | 1.03 4.500 2.05 1.27 0.393 O | | | | 1.04 4.583 2.06 1.27 0.399 O | | | | 1.05 4.667 2.06 1.27 0.404 O | | | | 1.06 4.750 2.07 1.27 0.410 O | | | | 1.07 4.833 2.08 1.27 0.415 OI | | | | 1.08 4.917 2.09 1.27 0.421 OI | | | | 1.09 5.000 2.10 1.27 0.427 OI | | | | 1.10 5.083 2.11 1.27 0.432 OI | | | | 1.11 5.167 2.12 1.27 0.438 OI | | | | 1.12 5.250 2.13 1.27 0.444 OI | | | | 1.13 5.333 2.14 1.27 0.450 OI | | | | 1.15 5.417 2.14 1.27 0.456 OI | | | | 1.16 5.500 2.15 1.27 0.462 OI | | | | 1.17 5.583 2.16 1.27 0.468 OI | | | | 1.18 5.667 2.17 1.27 0.474 OI | | | | 1.19 5.750 2.18 1.27 0.480 OI | | | | 1.20 5.833 2.19 1.27 0.487 OI | | | | 1.21 5.917 2.20 1.27 0.493 OI | | | | 1.22 6.000 2.21 1.27 0.500 OI | | | | 1.24 6.083 2.22 1.27 0.506 OI | | | | 1.25 6.167 2.23 1.27 0.513 OI | | | | 1.26 6.250 2.24 1.27 0.519 OI | | | | 1.27 6.333 2.25 1.27 0.526 OI | | | | 1.28 6.417 2.26 1.27 0.533 OI | | | | 1.30 6.500 2.28 1.27 0.540 OI | | | | 1.31 6.583 2.29 1.27 0.547 OI | | | | 1.32 6.667 2.30 1.27 0.554 OI | | | | 1.33 6.750 2.31 1.27 0.561 OI | | | | 1.35 6.833 2.32 1.27 0.568 OI | | | | 1.36 6.917 2.33 1.27 0.575 OI | | | | 1.37 7.000 2.34 1.27 0.583 OI | | | | 1.39 7.083 2.36 1.27 0.590 OI | | | | 1.40 7.167 2.37 1.27 0.598 OI | | | | 1.41 7.250 2.38 1.27 0.605 OI | | | | 1.43 7.333 2.39 1.27 0.613 OI | | | | 1.44 7.417 2.41 1.27 0.621 OI | | | | 1.46 7.500 2.42 1.27 0.629 OI | | | | 1.47 7.583 2.43 1.27 0.637 OI | | | | 1.48 7.667 2.45 1.27 0.645 OI | | | | 1.50 7.750 2.46 1.27 0.653 OI | | | | 1.51 7.833 2.47 1.27 0.661 OI | | | | 1.53 7.917 2.49 1.27 0.670 OI | | | | 1.54 8.000 2.50 1.27 0.678 OI | | | | 1.56 8.083 2.52 1.27 0.686 OI | | | | 1.58 8.167 2.53 1.27 0.695 OI | | | | 1.59 8.250 2.55 1.27 0.704 OI | | | | 1.61 8.333 2.56 1.27 0.713 OI | | | | 1.62 8.417 2.58 1.27 0.722 OI | | | | 1.64 8.500 2.59 1.27 0.731 OI | | | | 1.66 8.583 2.61 1.27 0.740 OI | | | | 1.67 8.667 2.62 1.27 0.749 OI | | | | 1.69 8.750 2.64 1.27 0.758 OI | | | | 1.71 8.833 2.66 1.27 0.768 OI | | | | 1.72 8.917 2.67 1.27 0.778 OI | | | | 1.74 9.000 2.69 1.27 0.787 OI | | | | 1.76 9.083 2.71 1.27 0.797 OI | | | | 1.78 9.167 2.73 1.27 0.807 OI | | | | 1.79 9.250 2.75 1.27 0.817 OI | | | | 1.81 9.333 2.76 1.27 0.827 OI | | | | 1.83 9.417 2.78 1.27 0.838 OI | | | | 1.85 9.500 2.80 1.27 0.848 OI | | | | 1.87 9.583 2.82 1.27 0.859 OI | | | | 1.89 9.667 2.84 1.27 0.870 OI | | | | 1.91 9.750 2.86 1.27 0.881 OI | | | | 1.93 9.833 2.88 1.27 0.892 OI | | | | 1.95 9.917 2.91 1.27 0.903 OI | | | | 1.97 10.000 2.93 1.27 0.914 OI | | | | 1.99 10.083 2.95 1.27 0.926 OI | | | | 2.01 10.167 2.97 1.27 0.937 OI | | | | 2.03 10.250 3.00 1.27 0.949 OI | | | | 2.04 10.333 3.02 1.27 0.961 OI | | | | 2.06 10.417 3.04 1.27 0.973 OI | | | | 2.08 10.500 3.07 1.27 0.986 OI | | | | 2.10 10.583 3.10 1.27 0.998 OI | | | | 2.11 10.667 3.12 1.27 1.011 OI | | | | 2.13 10.750 3.15 1.27 1.024 OI | | | | 2.15 10.833 3.18 1.27 1.037 OI | | | | 2.17 10.917 3.20 1.27 1.050 OI | | | | 2.19 11.000 3.23 1.27 1.063 OI | | | | 2.21 11.083 3.26 1.27 1.077 OI | | | | 2.23 11.167 3.29 1.27 1.091 OI | | | | 2.25 11.250 3.32 1.27 1.105 OI | | | | 2.27 11.333 3.36 1.27 1.119 OI | | | | 2.29 11.417 3.39 1.27 1.133 OI | | | | 2.31 11.500 3.42 1.27 1.148 OI | | | | 2.34 11.583 3.46 1.27 1.163 OI | | | | 2.36 11.667 3.49 1.27 1.178 OI | | | | 2.38 11.750 3.53 1.27 1.194 OI | | | | 2.40 11.833 3.57 1.27 1.209 OI | | | | 2.43 11.917 3.61 1.27 1.225 OI | | | | 2.45 12.000 3.65 1.27 1.242 OI | | | | 2.47 12.083 3.74 1.27 1.258 OI | | | | 2.50 12.167 4.02 1.27 1.276 OI | | | | 2.52 12.250 4.24 1.27 1.296 O I | | | | 2.55 12.333 4.33 1.27 1.317 O I | | | | 2.58 12.417 4.38 1.27 1.338 O I | | | | 2.61 12.500 4.43 1.27 1.360 O I | | | | 2.65 12.583 4.48 1.27 1.382 O I | | | | 2.68 12.667 4.54 1.27 1.404 O I | | | | 2.71 12.750 4.59 1.27 1.427 O I | | | | 2.74 12.833 4.65 1.27 1.450 O I | | | | 2.78 12.917 4.71 1.27 1.473 O I | | | | 2.81 13.000 4.77 1.27 1.497 O I | | | | 2.85 13.083 4.83 1.27 1.521 O I | | | | 2.88 13.167 4.90 1.27 1.546 O I | | | | 2.92 13.250 4.97 1.27 1.571 O I | | | | 2.96 13.333 5.04 1.27 1.597 O I | | | | 3.00 13.417 5.11 1.28 1.623 O I | | | | 3.03 13.500 5.20 1.29 1.650 O I | | | | 3.07 13.583 5.28 1.31 1.677 O I | | | | 3.10 13.667 5.37 1.32 1.705 O I | | | | 3.14 13.750 5.45 1.33 1.733 O I | | | | 3.18 13.833 5.55 1.35 1.761 O I | | | | 3.22 13.917 5.65 1.36 1.791 O I | | | | 3.26 14.000 5.76 1.38 1.820 O I | | | | 3.30 14.083 5.87 1.39 1.851 O I | | | | 3.34 14.167 6.00 1.41 1.882 O I | | | | 3.38 14.250 6.13 1.42 1.914 O I | | | | 3.42 14.333 6.27 1.44 1.947 O I | | | | 3.47 14.417 6.41 1.45 1.981 O I | | | | 3.51 14.500 6.58 1.47 2.015 O I | | | | 3.56 14.583 6.74 1.49 2.051 O I | | | | 3.61 14.667 6.93 1.51 2.088 O I | | | | 3.66 14.750 7.12 1.53 2.126 O I | | | | 3.71 14.833 7.34 1.54 2.165 O I | | | | 3.76 14.917 7.57 1.56 2.206 O I | | | | 3.82 15.000 7.85 1.58 2.248 O I | | | | 3.88 15.083 8.13 1.61 2.292 O I | | | | 3.94 15.167 8.47 1.63 2.338 O I | | | | 4.00 15.250 8.83 2.20 2.384 |O I | | | | 4.06 15.333 9.27 2.79 2.429 |O I | | | | 4.12 15.417 9.54 3.35 2.473 |O I | | | | 4.17 15.500 9.15 3.86 2.513 |O I | | | | 4.22 15.583 9.11 4.31 2.547 | O I | | | | 4.27 15.667 9.85 4.75 2.581 | O I | | | | 4.31 15.750 10.89 5.23 2.618 | O I | | | | 4.36 15.833 12.52 5.79 2.661 | O I | | | | 4.42 15.917 14.99 6.47 2.714 | O I| | | | 4.49 16.000 20.42 7.43 2.788 | O |I | | | 4.58 16.083 35.15 9.16 2.922 | O | I | | 4.76 16.167 66.42 12.59 3.197 | O | | | I 5.11 16.250 49.63 16.02 3.498 | O| | I| | 5.50 16.333 21.19 17.49 3.626 | O I | | | 5.67 16.417 12.84 17.45 3.623 | I O | | | 5.67 16.500 10.22 17.01 3.584 | I O | | | 5.62 16.583 9.57 16.47 3.537 | I O| | | | 5.55 16.667 8.78 15.92 3.489 | I O| | | | 5.49 16.750 8.12 15.35 3.439 | I O| | | | 5.43 16.833 7.56 14.78 3.389 | I O| | | | 5.36 16.917 7.10 14.22 3.340 | I O | | | | 5.30 17.000 6.72 13.67 3.291 | I O | | | | 5.24 17.083 6.40 13.13 3.244 | I O | | | | 5.17 17.167 6.11 12.61 3.199 | I O | | | | 5.12 17.250 5.86 12.11 3.155 | I O | | | | 5.06 17.333 5.64 11.63 3.113 | I O | | | | 5.00 17.417 5.44 11.12 3.073 | I O | | | | 4.95 17.500 5.27 10.62 3.035 | I O | | | | 4.90 17.583 5.11 10.16 2.999 | I O | | | | 4.86 17.667 4.96 9.72 2.965 | I O | | | | 4.81 17.750 4.82 9.31 2.933 | I O | | | | 4.77 17.833 4.70 8.92 2.903 | I O | | | | 4.73 17.917 4.58 8.56 2.875 | I O | | | | 4.69 18.000 4.48 8.21 2.848 | IO | | | | 4.66 18.083 4.33 7.89 2.823 | IO | | | | 4.63 18.167 3.99 7.57 2.799 |I O | | | | 4.60 18.250 3.73 7.25 2.774 |I O | | | | 4.56 18.333 3.61 6.95 2.751 |I O | | | | 4.53 18.417 3.52 6.66 2.728 |I O | | | | 4.50 18.500 3.45 6.39 2.707 |I O | | | | 4.48 18.583 3.38 6.13 2.688 |IO | | | | 4.45 18.667 3.32 5.90 2.669 |IO | | | | 4.43 18.750 3.26 5.67 2.652 |IO | | | | 4.41 18.833 3.20 5.46 2.636 |IO | | | | 4.38 18.917 3.14 5.27 2.621 |IO | | | | 4.36 19.000 3.09 5.08 2.607 |IO | | | | 4.35 19.083 3.04 4.91 2.594 |IO | | | | 4.33 19.167 2.99 4.75 2.581 |IO | | | | 4.31 19.250 2.95 4.60 2.569 |IO | | | | 4.30 19.333 2.90 4.46 2.558 |IO | | | | 4.28 19.417 2.86 4.32 2.548 |IO | | | | 4.27 19.500 2.82 4.19 2.538 |IO | | | | 4.26 19.583 2.78 4.08 2.529 |O | | | | 4.25 19.667 2.74 3.96 2.520 |O | | | | 4.23 19.750 2.71 3.86 2.512 |O | | | | 4.22 19.833 2.67 3.76 2.504 |O | | | | 4.21 19.917 2.64 3.66 2.497 |O | | | | 4.20 20.000 2.60 3.57 2.490 |O | | | | 4.20 20.083 2.57 3.49 2.484 |O | | | | 4.19 20.167 2.54 3.41 2.478 |O | | | | 4.18 20.250 2.51 3.34 2.472 |O | | | | 4.17 20.333 2.49 3.26 2.466 |O | | | | 4.16 20.417 2.46 3.20 2.461 |O | | | | 4.16 20.500 2.43 3.13 2.456 |O | | | | 4.15 20.583 2.40 3.07 2.451 |O | | | | 4.14 20.667 2.38 3.01 2.447 |O | | | | 4.14 20.750 2.35 2.96 2.443 |O | | | | 4.13 20.833 2.33 2.91 2.439 |O | | | | 4.13 20.917 2.31 2.86 2.435 |O | | | | 4.12 21.000 2.29 2.81 2.431 |O | | | | 4.12 21.083 2.26 2.76 2.428 |O | | | | 4.11 21.167 2.24 2.72 2.424 |O | | | | 4.11 21.250 2.22 2.68 2.421 |O | | | | 4.11 21.333 2.20 2.64 2.418 |O | | | | 4.10 21.417 2.18 2.60 2.415 |O | | | | 4.10 21.500 2.16 2.56 2.412 |O | | | | 4.09 21.583 2.14 2.53 2.409 |O | | | | 4.09 21.667 2.12 2.49 2.407 |O | | | | 4.09 21.750 2.11 2.46 2.404 |O | | | | 4.08 21.833 2.09 2.43 2.402 |O | | | | 4.08 21.917 2.07 2.40 2.400 IO | | | | 4.08 22.000 2.05 2.37 2.397 IO | | | | 4.07 22.083 2.04 2.34 2.395 IO | | | | 4.07 22.167 2.02 2.32 2.393 IO | | | | 4.07 22.250 2.01 2.29 2.391 IO | | | | 4.07 22.333 1.99 2.27 2.389 IO | | | | 4.06 22.417 1.98 2.24 2.387 IO | | | | 4.06 22.500 1.96 2.22 2.386 IO | | | | 4.06 22.583 1.95 2.20 2.384 IO | | | | 4.06 22.667 1.93 2.17 2.382 IO | | | | 4.05 22.750 1.92 2.15 2.380 IO | | | | 4.05 22.833 1.91 2.13 2.379 IO | | | | 4.05 22.917 1.89 2.11 2.377 IO | | | | 4.05 23.000 1.88 2.09 2.376 IO | | | | 4.05 23.083 1.87 2.07 2.374 O | | | | 4.04 23.167 1.85 2.06 2.373 O | | | | 4.04 23.250 1.84 2.04 2.372 O | | | | 4.04 23.333 1.83 2.02 2.370 O | | | | 4.04 23.417 1.82 2.00 2.369 O | | | | 4.04 23.500 1.81 1.99 2.368 O | | | | 4.04 23.583 1.79 1.97 2.366 O | | | | 4.03 23.667 1.78 1.96 2.365 O | | | | 4.03 23.750 1.77 1.94 2.364 O | | | | 4.03 23.833 1.76 1.93 2.363 O | | | | 4.03 23.917 1.75 1.91 2.362 O | | | | 4.03 24.000 1.74 1.90 2.361 O | | | | 4.03 24.083 1.57 1.88 2.359 O | | | | 4.02 24.167 0.74 1.81 2.354 O | | | | 4.02 24.250 0.15 1.70 2.345 O | | | | 4.01 24.333 0.03 1.63 2.335 O | | | | 3.99 24.417 0.00 1.62 2.323 O | | | | 3.98 24.500 0.00 1.62 2.312 O | | | | 3.96 24.583 0.00 1.61 2.301 O | | | | 3.95 24.667 0.00 1.60 2.290 O | | | | 3.93 24.750 0.00 1.60 2.279 O | | | | 3.92 24.833 0.00 1.59 2.268 O | | | | 3.90 24.917 0.00 1.59 2.257 O | | | | 3.89 25.000 0.00 1.58 2.246 O | | | | 3.87 25.083 0.00 1.58 2.235 O | | | | 3.86 25.167 0.00 1.57 2.224 O | | | | 3.84 25.250 0.00 1.57 2.214 O | | | | 3.83 25.333 0.00 1.56 2.203 O | | | | 3.81 25.417 0.00 1.56 2.192 O | | | | 3.80 25.500 0.00 1.55 2.181 O | | | | 3.79 25.583 0.00 1.55 2.171 O | | | | 3.77 25.667 0.00 1.54 2.160 O | | | | 3.76 25.750 0.00 1.54 2.150 O | | | | 3.74 25.833 0.00 1.53 2.139 O | | | | 3.73 25.917 0.00 1.53 2.128 O | | | | 3.71 26.000 0.00 1.52 2.118 O | | | | 3.70 26.083 0.00 1.52 2.107 O | | | | 3.69 26.167 0.00 1.51 2.097 O | | | | 3.67 26.250 0.00 1.51 2.087 O | | | | 3.66 26.333 0.00 1.50 2.076 O | | | | 3.64 26.417 0.00 1.50 2.066 O | | | | 3.63 26.500 0.00 1.49 2.056 O | | | | 3.62 26.583 0.00 1.49 2.045 O | | | | 3.60 26.667 0.00 1.48 2.035 O | | | | 3.59 26.750 0.00 1.48 2.025 O | | | | 3.57 26.833 0.00 1.47 2.015 O | | | | 3.56 26.917 0.00 1.47 2.005 O | | | | 3.55 27.000 0.00 1.46 1.995 O | | | | 3.53 27.083 0.00 1.46 1.985 O | | | | 3.52 27.167 0.00 1.45 1.975 O | | | | 3.51 27.250 0.00 1.45 1.965 O | | | | 3.49 27.333 0.00 1.44 1.955 O | | | | 3.48 27.417 0.00 1.44 1.945 O | | | | 3.47 27.500 0.00 1.43 1.935 O | | | | 3.45 27.583 0.00 1.43 1.925 O | | | | 3.44 27.667 0.00 1.42 1.915 O | | | | 3.43 27.750 0.00 1.42 1.905 O | | | | 3.41 27.833 0.00 1.41 1.896 O | | | | 3.40 27.917 0.00 1.41 1.886 O | | | | 3.39 28.000 0.00 1.40 1.876 O | | | | 3.37 28.083 0.00 1.40 1.867 O | | | | 3.36 28.167 0.00 1.39 1.857 O | | | | 3.35 28.250 0.00 1.39 1.847 O | | | | 3.33 28.333 0.00 1.39 1.838 O | | | | 3.32 28.417 0.00 1.38 1.828 O | | | | 3.31 28.500 0.00 1.38 1.819 O | | | | 3.30 28.583 0.00 1.37 1.809 O | | | | 3.28 28.667 0.00 1.37 1.800 O | | | | 3.27 28.750 0.00 1.36 1.791 O | | | | 3.26 28.833 0.00 1.36 1.781 O | | | | 3.24 28.917 0.00 1.35 1.772 O | | | | 3.23 29.000 0.00 1.35 1.763 O | | | | 3.22 29.083 0.00 1.34 1.753 O | | | | 3.21 29.167 0.00 1.34 1.744 O | | | | 3.19 29.250 0.00 1.34 1.735 O | | | | 3.18 29.333 0.00 1.33 1.726 O | | | | 3.17 29.417 0.00 1.33 1.716 O | | | | 3.16 29.500 0.00 1.32 1.707 O | | | | 3.15 29.583 0.00 1.32 1.698 O | | | | 3.13 29.667 0.00 1.31 1.689 O | | | | 3.12 29.750 0.00 1.31 1.680 O | | | | 3.11 29.833 0.00 1.30 1.671 O | | | | 3.10 29.917 0.00 1.30 1.662 O | | | | 3.08 30.000 0.00 1.30 1.653 O | | | | 3.07 30.083 0.00 1.29 1.644 O | | | | 3.06 30.167 0.00 1.29 1.635 O | | | | 3.05 30.250 0.00 1.28 1.627 O | | | | 3.04 30.333 0.00 1.28 1.618 O | | | | 3.02 30.417 0.00 1.27 1.609 O | | | | 3.01 30.500 0.00 1.27 1.600 O | | | | 3.00 30.583 0.00 1.27 1.592 O | | | | 2.99 30.667 0.00 1.27 1.583 O | | | | 2.97 30.750 0.00 1.27 1.574 O | | | | 2.96 30.833 0.00 1.27 1.565 O | | | | 2.95 30.917 0.00 1.27 1.557 O | | | | 2.94 31.000 0.00 1.27 1.548 O | | | | 2.92 31.083 0.00 1.27 1.539 O | | | | 2.91 31.167 0.00 1.27 1.530 O | | | | 2.90 31.250 0.00 1.27 1.522 O | | | | 2.88 31.333 0.00 1.27 1.513 O | | | | 2.87 31.417 0.00 1.27 1.504 O | | | | 2.86 31.500 0.00 1.27 1.495 O | | | | 2.85 31.583 0.00 1.27 1.487 O | | | | 2.83 31.667 0.00 1.27 1.478 O | | | | 2.82 31.750 0.00 1.27 1.469 O | | | | 2.81 31.833 0.00 1.27 1.460 O | | | | 2.79 31.917 0.00 1.27 1.452 O | | | | 2.78 32.000 0.00 1.27 1.443 O | | | | 2.77 32.083 0.00 1.27 1.434 O | | | | 2.76 32.167 0.00 1.27 1.425 O | | | | 2.74 32.250 0.00 1.27 1.417 O | | | | 2.73 32.333 0.00 1.27 1.408 O | | | | 2.72 32.417 0.00 1.27 1.399 O | | | | 2.70 32.500 0.00 1.27 1.390 O | | | | 2.69 32.583 0.00 1.27 1.382 O | | | | 2.68 32.667 0.00 1.27 1.373 O | | | | 2.67 32.750 0.00 1.27 1.364 O | | | | 2.65 32.833 0.00 1.27 1.355 O | | | | 2.64 32.917 0.00 1.27 1.347 O | | | | 2.63 33.000 0.00 1.27 1.338 O | | | | 2.61 33.083 0.00 1.27 1.329 O | | | | 2.60 33.167 0.00 1.27 1.320 O | | | | 2.59 33.250 0.00 1.27 1.312 O | | | | 2.58 33.333 0.00 1.27 1.303 O | | | | 2.56 33.417 0.00 1.27 1.294 O | | | | 2.55 33.500 0.00 1.27 1.285 O | | | | 2.54 33.583 0.00 1.27 1.277 O | | | | 2.52 33.667 0.00 1.27 1.268 O | | | | 2.51 33.750 0.00 1.27 1.259 O | | | | 2.50 33.833 0.00 1.27 1.250 O | | | | 2.49 33.917 0.00 1.27 1.242 O | | | | 2.47 34.000 0.00 1.27 1.233 O | | | | 2.46 34.083 0.00 1.27 1.224 O | | | | 2.45 34.167 0.00 1.27 1.215 O | | | | 2.43 34.250 0.00 1.27 1.207 O | | | | 2.42 34.333 0.00 1.27 1.198 O | | | | 2.41 34.417 0.00 1.27 1.189 O | | | | 2.40 34.500 0.00 1.27 1.180 O | | | | 2.38 34.583 0.00 1.27 1.172 O | | | | 2.37 34.667 0.00 1.27 1.163 O | | | | 2.36 34.750 0.00 1.27 1.154 O | | | | 2.34 34.833 0.00 1.27 1.145 O | | | | 2.33 34.917 0.00 1.27 1.137 O | | | | 2.32 35.000 0.00 1.27 1.128 O | | | | 2.31 35.083 0.00 1.27 1.119 O | | | | 2.29 35.167 0.00 1.27 1.110 O | | | | 2.28 35.250 0.00 1.27 1.102 O | | | | 2.27 35.333 0.00 1.27 1.093 O | | | | 2.25 35.417 0.00 1.27 1.084 O | | | | 2.24 35.500 0.00 1.27 1.075 O | | | | 2.23 35.583 0.00 1.27 1.067 O | | | | 2.22 35.667 0.00 1.27 1.058 O | | | | 2.20 35.750 0.00 1.27 1.049 O | | | | 2.19 35.833 0.00 1.27 1.040 O | | | | 2.18 35.917 0.00 1.27 1.032 O | | | | 2.16 36.000 0.00 1.27 1.023 O | | | | 2.15 36.083 0.00 1.27 1.014 O | | | | 2.14 36.167 0.00 1.27 1.005 O | | | | 2.13 36.250 0.00 1.27 0.997 O | | | | 2.11 36.333 0.00 1.27 0.988 O | | | | 2.10 36.417 0.00 1.27 0.979 O | | | | 2.09 36.500 0.00 1.27 0.971 O | | | | 2.07 36.583 0.00 1.27 0.962 O | | | | 2.06 36.667 0.00 1.27 0.953 O | | | | 2.05 36.750 0.00 1.27 0.944 O | | | | 2.04 36.833 0.00 1.27 0.936 O | | | | 2.02 36.917 0.00 1.27 0.927 O | | | | 2.01 37.000 0.00 1.27 0.918 O | | | | 2.00 37.083 0.00 1.27 0.909 O | | | | 1.98 37.167 0.00 1.27 0.901 O | | | | 1.96 37.250 0.00 1.27 0.892 O | | | | 1.95 37.333 0.00 1.27 0.883 O | | | | 1.93 37.417 0.00 1.27 0.874 O | | | | 1.92 37.500 0.00 1.27 0.866 O | | | | 1.90 37.583 0.00 1.27 0.857 O | | | | 1.89 37.667 0.00 1.27 0.848 O | | | | 1.87 37.750 0.00 1.27 0.839 O | | | | 1.85 37.833 0.00 1.27 0.831 O | | | | 1.84 37.917 0.00 1.27 0.822 O | | | | 1.82 38.000 0.00 1.27 0.813 O | | | | 1.81 38.083 0.00 1.27 0.804 O | | | | 1.79 38.167 0.00 1.27 0.796 O | | | | 1.77 38.250 0.00 1.27 0.787 O | | | | 1.76 38.333 0.00 1.27 0.778 O | | | | 1.74 38.417 0.00 1.27 0.769 O | | | | 1.73 38.500 0.00 1.27 0.761 O | | | | 1.71 38.583 0.00 1.27 0.752 O | | | | 1.69 38.667 0.00 1.27 0.743 O | | | | 1.68 38.750 0.00 1.27 0.734 O | | | | 1.66 38.833 0.00 1.27 0.726 O | | | | 1.65 38.917 0.00 1.27 0.717 O | | | | 1.63 39.000 0.00 1.27 0.708 O | | | | 1.61 39.083 0.00 1.27 0.699 O | | | | 1.60 39.167 0.00 1.27 0.691 O | | | | 1.58 39.250 0.00 1.27 0.682 O | | | | 1.57 39.333 0.00 1.27 0.673 O | | | | 1.55 39.417 0.00 1.27 0.664 O | | | | 1.54 39.500 0.00 1.27 0.656 O | | | | 1.52 39.583 0.00 1.27 0.647 O | | | | 1.50 39.667 0.00 1.27 0.638 O | | | | 1.49 39.750 0.00 1.27 0.629 O | | | | 1.47 39.833 0.00 1.27 0.621 O | | | | 1.46 39.917 0.00 1.27 0.612 O | | | | 1.44 40.000 0.00 1.27 0.603 O | | | | 1.42 40.083 0.00 1.27 0.594 O | | | | 1.41 40.167 0.00 1.27 0.586 O | | | | 1.39 40.250 0.00 1.27 0.577 O | | | | 1.38 40.333 0.00 1.27 0.568 O | | | | 1.36 40.417 0.00 1.27 0.559 O | | | | 1.34 40.500 0.00 1.27 0.551 O | | | | 1.33 40.583 0.00 1.27 0.542 O | | | | 1.31 40.667 0.00 1.27 0.533 O | | | | 1.30 40.750 0.00 1.27 0.524 O | | | | 1.28 40.833 0.00 1.27 0.516 O | | | | 1.26 40.917 0.00 1.27 0.507 O | | | | 1.25 41.000 0.00 1.27 0.498 O | | | | 1.23 41.083 0.00 1.27 0.489 O | | | | 1.22 41.167 0.00 1.27 0.481 O | | | | 1.20 41.250 0.00 1.27 0.472 O | | | | 1.19 41.333 0.00 1.27 0.463 O | | | | 1.17 41.417 0.00 1.27 0.454 O | | | | 1.15 41.500 0.00 1.27 0.446 O | | | | 1.14 41.583 0.00 1.27 0.437 O | | | | 1.12 41.667 0.00 1.27 0.428 O | | | | 1.11 41.750 0.00 1.27 0.419 O | | | | 1.09 41.833 0.00 1.27 0.411 O | | | | 1.07 41.917 0.00 1.27 0.402 O | | | | 1.06 42.000 0.00 1.27 0.393 O | | | | 1.04 42.083 0.00 1.27 0.384 O | | | | 1.03 42.167 0.00 1.27 0.376 O | | | | 1.01 42.250 0.00 1.26 0.367 O | | | | 0.99 42.333 0.00 1.23 0.358 O | | | | 0.97 42.417 0.00 1.20 0.350 O | | | | 0.95 42.500 0.00 1.17 0.342 O | | | | 0.92 42.583 0.00 1.15 0.334 O | | | | 0.90 42.667 0.00 1.12 0.326 O | | | | 0.88 42.750 0.00 1.09 0.318 O | | | | 0.86 42.833 0.00 1.07 0.311 O | | | | 0.84 42.917 0.00 1.04 0.304 O | | | | 0.82 43.000 0.00 1.02 0.297 O | | | | 0.80 43.083 0.00 0.99 0.290 O | | | | 0.78 43.167 0.00 0.97 0.283 O | | | | 0.76 43.250 0.00 0.95 0.276 O | | | | 0.75 43.333 0.00 0.93 0.270 O | | | | 0.73 43.417 0.00 0.90 0.264 O | | | | 0.71 43.500 0.00 0.88 0.257 O | | | | 0.70 43.583 0.00 0.86 0.251 O | | | | 0.68 43.667 0.00 0.84 0.246 O | | | | 0.66 43.750 0.00 0.82 0.240 O | | | | 0.65 43.833 0.00 0.80 0.234 O | | | | 0.63 43.917 0.00 0.79 0.229 O | | | | 0.62 44.000 0.00 0.77 0.223 O | | | | 0.60 44.083 0.00 0.75 0.218 O | | | | 0.59 44.167 0.00 0.73 0.213 O | | | | 0.58 44.250 0.00 0.71 0.208 O | | | | 0.56 44.333 0.00 0.70 0.203 O | | | | 0.55 44.417 0.00 0.68 0.199 O | | | | 0.54 44.500 0.00 0.67 0.194 O | | | | 0.52 44.583 0.00 0.65 0.189 O | | | | 0.51 44.667 0.00 0.63 0.185 O | | | | 0.50 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.62 0.181 O | | | | 0.49 44.833 0.00 0.61 0.176 O | | | | 0.48 44.917 0.00 0.59 0.172 O | | | | 0.47 45.000 0.00 0.58 0.168 O | | | | 0.45 45.083 0.00 0.56 0.164 O | | | | 0.44 45.167 0.00 0.55 0.160 O | | | | 0.43 45.250 0.00 0.54 0.157 O | | | | 0.42 45.333 0.00 0.53 0.153 O | | | | 0.41 45.417 0.00 0.51 0.149 O | | | | 0.40 45.500 0.00 0.50 0.146 O | | | | 0.39 45.583 0.00 0.49 0.143 O | | | | 0.39 45.667 0.00 0.48 0.139 O | | | | 0.38 45.750 0.00 0.47 0.136 O | | | | 0.37 45.833 0.00 0.46 0.133 O | | | | 0.36 45.917 0.00 0.45 0.130 O | | | | 0.35 46.000 0.00 0.44 0.127 O | | | | 0.35 46.083 0.00 0.43 0.121 O | | | | 0.34 46.167 0.00 0.42 0.118 O | | | | 0.33 46.250 0.00 0.40 0.112 O | | | | 0.32 46.333 0.00 0.38 0.104 O | | | | 0.30 46.417 0.00 0.35 0.102 O | | | | 0.28 46.500 0.00 0.34 0.100 O | | | | 0.27 46.583 0.00 0.32 0.093 O | | | | 0.25 46.667 0.00 0.29 0.084 O | | | | 0.23 46.750 0.00 0.28 0.081 O | | | | 0.22 46.833 0.00 0.26 0.077 O | | | | 0.21 46.917 0.00 0.25 0.073 O | | | | 0.20 47.000 0.00 0.22 0.065 O | | | | 0.18 47.083 0.00 0.21 0.062 O | | | | 0.17 47.167 0.00 0.18 0.054 O | | | | 0.15 47.250 0.00 0.17 0.050 O | | | | 0.14 47.333 0.00 0.16 0.047 O | | | | 0.13 47.417 0.00 0.15 0.044 O | | | | 0.12 47.500 0.00 0.12 0.035 O | | | | 0.10 47.583 0.00 0.10 0.028 O | | | | 0.08 47.667 0.00 0.08 0.024 O | | | | 0.07 47.750 0.00 0.06 0.017 O | | | | 0.05 47.833 0.00 0.04 0.013 O | | | | 0.04 47.917 0.00 0.02 0.006 O | | | | 0.02 48.000 0.00 0.00 0.000 O | | | | 0.00 48.083 0.00 0.00 0.000 O | | | | 0.00 48.167 0.00 0.00 0.000 O | | | | 0.00 48.250 0.00 0.00 0.000 O | | | | 0.00 48.333 0.00 0.00 0.000 O | | | | 0.00 48.417 0.00 0.00 0.000 O | | | | 0.00 48.500 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 582 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 17.488 (CFS) Total volume = 7.916 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.4 BASIN ROUTING ANALYSIS DRAINAGE AREA A – 100 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/24/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 100 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER A -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH100POSTA.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 88.450 (CFS) Total volume = 10.233 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 3.700 to Point/Station 3.700 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.370 1.270 0.366 0.374 2.000 0.920 1.270 0.916 0.924 3.000 1.600 1.270 1.596 1.604 4.000 2.340 1.629 2.334 2.346 5.000 3.110 11.600 3.070 3.150 6.000 3.880 20.380 3.810 3.950 7.000 4.630 26.310 4.539 4.721 8.000 5.310 31.130 5.203 5.417 9.000 5.860 35.290 5.738 5.982 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 22.1 44.23 66.34 88.45 (Ft.) 0.083 0.21 0.00 0.001 O | | | | 0.00 0.167 1.27 0.02 0.006 O | | | | 0.02 0.250 2.03 0.06 0.017 O | | | | 0.05 0.333 2.18 0.11 0.031 O | | | | 0.08 0.417 2.23 0.15 0.045 O | | | | 0.12 0.500 2.23 0.20 0.059 O | | | | 0.16 0.583 2.24 0.25 0.073 O | | | | 0.20 0.667 2.25 0.30 0.087 O | | | | 0.23 0.750 2.25 0.34 0.100 O | | | | 0.27 0.833 2.26 0.39 0.113 O | | | | 0.31 0.917 2.27 0.43 0.126 O | | | | 0.34 1.000 2.28 0.47 0.138 O | | | | 0.37 1.083 2.28 0.52 0.151 O | | | | 0.41 1.167 2.29 0.56 0.163 O | | | | 0.44 1.250 2.30 0.60 0.174 O | | | | 0.47 1.333 2.30 0.64 0.186 O | | | | 0.50 1.417 2.31 0.68 0.197 O | | | | 0.53 1.500 2.32 0.72 0.208 O | | | | 0.56 1.583 2.33 0.75 0.219 O | | | | 0.59 1.667 2.33 0.79 0.230 O | | | | 0.62 1.750 2.34 0.83 0.241 O | | | | 0.65 1.833 2.35 0.86 0.251 O | | | | 0.68 1.917 2.36 0.90 0.261 O | | | | 0.71 2.000 2.36 0.93 0.271 O | | | | 0.73 2.083 2.37 0.96 0.281 O | | | | 0.76 2.167 2.38 1.00 0.291 O | | | | 0.79 2.250 2.39 1.03 0.300 O | | | | 0.81 2.333 2.40 1.06 0.309 O | | | | 0.84 2.417 2.40 1.09 0.318 O | | | | 0.86 2.500 2.41 1.12 0.327 O | | | | 0.88 2.583 2.42 1.15 0.336 O | | | | 0.91 2.667 2.43 1.18 0.345 O | | | | 0.93 2.750 2.44 1.21 0.353 O | | | | 0.95 2.833 2.45 1.24 0.362 O | | | | 0.98 2.917 2.45 1.27 0.370 O | | | | 1.00 3.000 2.46 1.27 0.378 O | | | | 1.01 3.083 2.47 1.27 0.386 O | | | | 1.03 3.167 2.48 1.27 0.395 O | | | | 1.04 3.250 2.49 1.27 0.403 O | | | | 1.06 3.333 2.50 1.27 0.411 O | | | | 1.08 3.417 2.51 1.27 0.420 O | | | | 1.09 3.500 2.52 1.27 0.428 O | | | | 1.11 3.583 2.53 1.27 0.437 O | | | | 1.12 3.667 2.54 1.27 0.446 O | | | | 1.14 3.750 2.55 1.27 0.455 O | | | | 1.15 3.833 2.56 1.27 0.463 O | | | | 1.17 3.917 2.57 1.27 0.472 O | | | | 1.19 4.000 2.58 1.27 0.481 O | | | | 1.20 4.083 2.59 1.27 0.490 O | | | | 1.22 4.167 2.60 1.27 0.499 O | | | | 1.24 4.250 2.61 1.27 0.509 O | | | | 1.25 4.333 2.62 1.27 0.518 O | | | | 1.27 4.417 2.63 1.27 0.527 O | | | | 1.29 4.500 2.64 1.27 0.536 O | | | | 1.30 4.583 2.65 1.27 0.546 O | | | | 1.32 4.667 2.66 1.27 0.555 O | | | | 1.34 4.750 2.67 1.27 0.565 O | | | | 1.35 4.833 2.68 1.27 0.575 O | | | | 1.37 4.917 2.69 1.27 0.584 O | | | | 1.39 5.000 2.70 1.27 0.594 O | | | | 1.41 5.083 2.71 1.27 0.604 O | | | | 1.43 5.167 2.73 1.27 0.614 O | | | | 1.44 5.250 2.74 1.27 0.624 O | | | | 1.46 5.333 2.75 1.27 0.634 O | | | | 1.48 5.417 2.76 1.27 0.645 O | | | | 1.50 5.500 2.77 1.27 0.655 OI | | | | 1.52 5.583 2.79 1.27 0.665 OI | | | | 1.54 5.667 2.80 1.27 0.676 OI | | | | 1.56 5.750 2.81 1.27 0.686 OI | | | | 1.58 5.833 2.82 1.27 0.697 OI | | | | 1.59 5.917 2.84 1.27 0.708 OI | | | | 1.61 6.000 2.85 1.27 0.719 OI | | | | 1.63 6.083 2.86 1.27 0.730 OI | | | | 1.65 6.167 2.88 1.27 0.741 OI | | | | 1.67 6.250 2.89 1.27 0.752 OI | | | | 1.69 6.333 2.90 1.27 0.763 OI | | | | 1.71 6.417 2.92 1.27 0.774 OI | | | | 1.73 6.500 2.93 1.27 0.786 OI | | | | 1.76 6.583 2.95 1.27 0.797 OI | | | | 1.78 6.667 2.96 1.27 0.809 OI | | | | 1.80 6.750 2.98 1.27 0.820 OI | | | | 1.82 6.833 2.99 1.27 0.832 OI | | | | 1.84 6.917 3.01 1.27 0.844 OI | | | | 1.86 7.000 3.02 1.27 0.856 OI | | | | 1.88 7.083 3.04 1.27 0.868 OI | | | | 1.91 7.167 3.05 1.27 0.880 OI | | | | 1.93 7.250 3.07 1.27 0.893 OI | | | | 1.95 7.333 3.08 1.27 0.905 OI | | | | 1.97 7.417 3.10 1.27 0.918 OI | | | | 2.00 7.500 3.12 1.27 0.930 OI | | | | 2.02 7.583 3.13 1.27 0.943 OI | | | | 2.03 7.667 3.15 1.27 0.956 OI | | | | 2.05 7.750 3.17 1.27 0.969 OI | | | | 2.07 7.833 3.19 1.27 0.982 OI | | | | 2.09 7.917 3.21 1.27 0.996 OI | | | | 2.11 8.000 3.22 1.27 1.009 OI | | | | 2.13 8.083 3.24 1.27 1.022 OI | | | | 2.15 8.167 3.26 1.27 1.036 OI | | | | 2.17 8.250 3.28 1.27 1.050 OI | | | | 2.19 8.333 3.30 1.27 1.064 OI | | | | 2.21 8.417 3.32 1.27 1.078 OI | | | | 2.23 8.500 3.34 1.27 1.092 OI | | | | 2.25 8.583 3.36 1.27 1.106 OI | | | | 2.27 8.667 3.38 1.27 1.121 OI | | | | 2.30 8.750 3.40 1.27 1.135 OI | | | | 2.32 8.833 3.43 1.27 1.150 OI | | | | 2.34 8.917 3.45 1.27 1.165 OI | | | | 2.36 9.000 3.47 1.27 1.180 OI | | | | 2.38 9.083 3.49 1.27 1.195 OI | | | | 2.41 9.167 3.52 1.27 1.211 OI | | | | 2.43 9.250 3.54 1.27 1.226 OI | | | | 2.45 9.333 3.56 1.27 1.242 OI | | | | 2.47 9.417 3.59 1.27 1.258 OI | | | | 2.50 9.500 3.61 1.27 1.274 OI | | | | 2.52 9.583 3.64 1.27 1.290 OI | | | | 2.54 9.667 3.67 1.27 1.307 OI | | | | 2.57 9.750 3.69 1.27 1.323 OI | | | | 2.59 9.833 3.72 1.27 1.340 OI | | | | 2.62 9.917 3.75 1.27 1.357 OI | | | | 2.64 10.000 3.78 1.27 1.374 OI | | | | 2.67 10.083 3.80 1.27 1.392 OI | | | | 2.69 10.167 3.83 1.27 1.409 OI | | | | 2.72 10.250 3.86 1.27 1.427 OI | | | | 2.75 10.333 3.90 1.27 1.445 OI | | | | 2.77 10.417 3.93 1.27 1.463 OI | | | | 2.80 10.500 3.96 1.27 1.481 OI | | | | 2.83 10.583 3.99 1.27 1.500 OI | | | | 2.85 10.667 4.03 1.27 1.519 OI | | | | 2.88 10.750 4.06 1.27 1.538 OI | | | | 2.91 10.833 4.10 1.27 1.557 OI | | | | 2.94 10.917 4.13 1.27 1.577 OI | | | | 2.97 11.000 4.17 1.27 1.597 OI | | | | 3.00 11.083 4.21 1.28 1.617 OI | | | | 3.02 11.167 4.25 1.29 1.637 OI | | | | 3.05 11.250 4.29 1.30 1.658 OI | | | | 3.08 11.333 4.33 1.31 1.678 OI | | | | 3.11 11.417 4.37 1.32 1.699 OI | | | | 3.13 11.500 4.42 1.33 1.720 OI | | | | 3.16 11.583 4.46 1.34 1.742 OI | | | | 3.19 11.667 4.51 1.35 1.764 OI | | | | 3.22 11.750 4.55 1.36 1.785 OI | | | | 3.25 11.833 4.60 1.37 1.808 OI | | | | 3.28 11.917 4.65 1.38 1.830 OI | | | | 3.31 12.000 4.71 1.39 1.853 OI | | | | 3.34 12.083 4.80 1.40 1.876 OI | | | | 3.37 12.167 5.06 1.42 1.900 OI | | | | 3.41 12.250 5.26 1.43 1.926 OI | | | | 3.44 12.333 5.35 1.44 1.952 OI | | | | 3.48 12.417 5.42 1.45 1.980 OI | | | | 3.51 12.500 5.49 1.47 2.007 OI | | | | 3.55 12.583 5.55 1.48 2.035 O I | | | | 3.59 12.667 5.62 1.49 2.063 O I | | | | 3.63 12.750 5.69 1.51 2.092 O I | | | | 3.66 12.833 5.77 1.52 2.121 O I | | | | 3.70 12.917 5.84 1.54 2.150 O I | | | | 3.74 13.000 5.92 1.55 2.180 O I | | | | 3.78 13.083 6.00 1.57 2.210 O I | | | | 3.82 13.167 6.09 1.58 2.241 O I | | | | 3.87 13.250 6.18 1.60 2.272 O I | | | | 3.91 13.333 6.28 1.61 2.304 O I | | | | 3.95 13.417 6.37 1.63 2.337 O I | | | | 4.00 13.500 6.48 2.00 2.369 O I | | | | 4.04 13.583 6.58 2.39 2.398 O I | | | | 4.08 13.667 6.70 2.75 2.426 O I | | | | 4.11 13.750 6.82 3.09 2.453 |OI | | | | 4.15 13.833 6.95 3.41 2.478 |OI | | | | 4.18 13.917 7.08 3.72 2.502 |OI | | | | 4.21 14.000 7.22 4.01 2.524 |OI | | | | 4.24 14.083 7.37 4.29 2.546 |OI | | | | 4.27 14.167 7.54 4.56 2.567 |OI | | | | 4.29 14.250 7.70 4.83 2.587 |OI | | | | 4.32 14.333 7.89 5.08 2.606 |OI | | | | 4.35 14.417 8.08 5.33 2.626 |OI | | | | 4.37 14.500 8.29 5.57 2.644 | OI | | | | 4.40 14.583 8.51 5.81 2.663 | OI | | | | 4.42 14.667 8.76 6.05 2.682 | OI | | | | 4.44 14.750 9.01 6.30 2.700 | OI | | | | 4.47 14.833 9.31 6.54 2.719 | OI | | | | 4.49 14.917 9.62 6.79 2.739 | OI | | | | 4.52 15.000 9.98 7.05 2.758 | OI | | | | 4.54 15.083 10.36 7.31 2.779 | OI | | | | 4.57 15.167 10.81 7.59 2.801 | OI | | | | 4.60 15.250 11.29 7.89 2.823 | O I | | | | 4.63 15.333 11.88 8.20 2.848 | O I | | | | 4.66 15.417 12.31 8.54 2.873 | OI | | | | 4.69 15.500 12.11 8.85 2.898 | OI | | | | 4.72 15.583 12.28 9.14 2.920 | OI | | | | 4.75 15.667 13.34 9.45 2.944 | OI | | | | 4.78 15.750 14.80 9.84 2.974 | O I | | | | 4.82 15.833 17.26 10.37 3.015 | O I | | | | 4.88 15.917 20.85 11.11 3.072 | O I| | | | 4.95 16.000 28.12 12.18 3.161 | O | I | | | 5.07 16.083 47.49 14.12 3.331 | O | |I | | 5.29 16.167 88.45 18.18 3.687 | O | | | I 5.75 16.250 65.75 21.96 4.080 | O| | I| | 6.27 16.333 28.41 23.29 4.249 | O I | | | 6.49 16.417 17.27 23.27 4.246 | I O | | | 6.49 16.500 13.46 22.85 4.193 | I O | | | 6.42 16.583 12.34 22.32 4.126 | I O | | | 6.33 16.667 11.23 21.77 4.055 | I O| | | | 6.23 16.750 10.33 21.18 3.982 | I O| | | | 6.14 16.833 9.59 20.59 3.906 | I O| | | | 6.04 16.917 8.99 19.82 3.831 | I O| | | | 5.94 17.000 8.48 18.99 3.758 | I O | | | | 5.84 17.083 8.05 18.18 3.687 | I O | | | | 5.75 17.167 7.68 17.40 3.618 | I O | | | | 5.66 17.250 7.35 16.65 3.553 | I O | | | | 5.58 17.333 7.06 15.94 3.490 | I O | | | | 5.49 17.417 6.80 15.26 3.431 | I O | | | | 5.42 17.500 6.57 14.61 3.374 | I O | | | | 5.34 17.583 6.36 13.99 3.320 | I O | | | | 5.27 17.667 6.17 13.41 3.269 | I O | | | | 5.21 17.750 5.99 12.85 3.220 | I O | | | | 5.14 17.833 5.83 12.33 3.174 | I O | | | | 5.08 17.917 5.68 11.83 3.130 | I O | | | | 5.03 18.000 5.54 11.33 3.089 | I O | | | | 4.97 18.083 5.37 10.83 3.050 |I O | | | | 4.92 18.167 5.04 10.35 3.013 |I O | | | | 4.87 18.250 4.79 9.89 2.978 |I O | | | | 4.83 18.333 4.65 9.44 2.944 |I O | | | | 4.78 18.417 4.55 9.03 2.912 |I O | | | | 4.74 18.500 4.45 8.64 2.882 |I O | | | | 4.70 18.583 4.36 8.28 2.854 |IO | | | | 4.67 18.667 4.28 7.94 2.828 |IO | | | | 4.63 18.750 4.20 7.63 2.803 |IO | | | | 4.60 18.833 4.13 7.33 2.780 |IO | | | | 4.57 18.917 4.05 7.06 2.759 |IO | | | | 4.54 19.000 3.99 6.80 2.739 |IO | | | | 4.52 19.083 3.92 6.55 2.720 |IO | | | | 4.49 19.167 3.86 6.33 2.703 |IO | | | | 4.47 19.250 3.80 6.11 2.686 |IO | | | | 4.45 19.333 3.74 5.91 2.671 |IO | | | | 4.43 19.417 3.69 5.73 2.656 |IO | | | | 4.41 19.500 3.63 5.55 2.643 |IO | | | | 4.39 19.583 3.58 5.38 2.630 |O | | | | 4.38 19.667 3.54 5.23 2.618 |O | | | | 4.36 19.750 3.49 5.08 2.607 |O | | | | 4.35 19.833 3.44 4.94 2.596 |O | | | | 4.33 19.917 3.40 4.81 2.586 |O | | | | 4.32 20.000 3.36 4.69 2.576 |O | | | | 4.31 20.083 3.32 4.58 2.568 |O | | | | 4.30 20.167 3.28 4.47 2.559 |O | | | | 4.28 20.250 3.24 4.36 2.551 |O | | | | 4.27 20.333 3.20 4.27 2.544 |O | | | | 4.26 20.417 3.17 4.17 2.536 |O | | | | 4.26 20.500 3.13 4.09 2.530 |O | | | | 4.25 20.583 3.10 4.00 2.523 |O | | | | 4.24 20.667 3.07 3.92 2.517 |O | | | | 4.23 20.750 3.03 3.85 2.511 |O | | | | 4.22 20.833 3.00 3.78 2.506 |O | | | | 4.22 20.917 2.97 3.71 2.501 |O | | | | 4.21 21.000 2.94 3.65 2.496 |O | | | | 4.20 21.083 2.92 3.59 2.491 |O | | | | 4.20 21.167 2.89 3.53 2.487 |O | | | | 4.19 21.250 2.86 3.47 2.482 |O | | | | 4.18 21.333 2.83 3.42 2.478 |O | | | | 4.18 21.417 2.81 3.37 2.474 |O | | | | 4.17 21.500 2.78 3.32 2.470 |O | | | | 4.17 21.583 2.76 3.27 2.467 IO | | | | 4.16 21.667 2.74 3.23 2.463 IO | | | | 4.16 21.750 2.71 3.18 2.460 IO | | | | 4.16 21.833 2.69 3.14 2.457 IO | | | | 4.15 21.917 2.67 3.10 2.454 IO | | | | 4.15 22.000 2.65 3.06 2.451 IO | | | | 4.14 22.083 2.62 3.03 2.448 IO | | | | 4.14 22.167 2.60 2.99 2.445 IO | | | | 4.14 22.250 2.58 2.96 2.443 IO | | | | 4.13 22.333 2.56 2.93 2.440 IO | | | | 4.13 22.417 2.54 2.89 2.438 IO | | | | 4.13 22.500 2.53 2.86 2.435 IO | | | | 4.12 22.583 2.51 2.83 2.433 IO | | | | 4.12 22.667 2.49 2.81 2.431 IO | | | | 4.12 22.750 2.47 2.78 2.429 IO | | | | 4.12 22.833 2.45 2.75 2.427 O | | | | 4.11 22.917 2.44 2.72 2.425 O | | | | 4.11 23.000 2.42 2.70 2.423 O | | | | 4.11 23.083 2.40 2.67 2.421 O | | | | 4.10 23.167 2.39 2.65 2.419 O | | | | 4.10 23.250 2.37 2.63 2.417 O | | | | 4.10 23.333 2.35 2.60 2.415 O | | | | 4.10 23.417 2.34 2.58 2.414 O | | | | 4.10 23.500 2.32 2.56 2.412 O | | | | 4.09 23.583 2.31 2.54 2.410 O | | | | 4.09 23.667 2.29 2.52 2.409 O | | | | 4.09 23.750 2.28 2.50 2.407 O | | | | 4.09 23.833 2.27 2.48 2.406 O | | | | 4.09 23.917 2.25 2.46 2.404 O | | | | 4.08 24.000 2.24 2.44 2.403 O | | | | 4.08 24.083 2.01 2.42 2.401 O | | | | 4.08 24.167 0.94 2.34 2.395 O | | | | 4.07 24.250 0.19 2.19 2.383 O | | | | 4.06 24.333 0.04 2.01 2.369 O | | | | 4.04 24.417 0.00 1.84 2.356 O | | | | 4.02 24.500 0.00 1.68 2.344 O | | | | 4.01 24.583 0.00 1.63 2.333 O | | | | 3.99 24.667 0.00 1.62 2.321 O | | | | 3.97 24.750 0.00 1.61 2.310 O | | | | 3.96 24.833 0.00 1.61 2.299 O | | | | 3.94 24.917 0.00 1.60 2.288 O | | | | 3.93 25.000 0.00 1.60 2.277 O | | | | 3.92 25.083 0.00 1.59 2.266 O | | | | 3.90 25.167 0.00 1.59 2.255 O | | | | 3.89 25.250 0.00 1.58 2.244 O | | | | 3.87 25.333 0.00 1.58 2.233 O | | | | 3.86 25.417 0.00 1.57 2.223 O | | | | 3.84 25.500 0.00 1.57 2.212 O | | | | 3.83 25.583 0.00 1.56 2.201 O | | | | 3.81 25.667 0.00 1.56 2.190 O | | | | 3.80 25.750 0.00 1.55 2.180 O | | | | 3.78 25.833 0.00 1.55 2.169 O | | | | 3.77 25.917 0.00 1.54 2.158 O | | | | 3.75 26.000 0.00 1.54 2.148 O | | | | 3.74 26.083 0.00 1.53 2.137 O | | | | 3.73 26.167 0.00 1.53 2.127 O | | | | 3.71 26.250 0.00 1.52 2.116 O | | | | 3.70 26.333 0.00 1.52 2.106 O | | | | 3.68 26.417 0.00 1.51 2.095 O | | | | 3.67 26.500 0.00 1.51 2.085 O | | | | 3.66 26.583 0.00 1.50 2.074 O | | | | 3.64 26.667 0.00 1.50 2.064 O | | | | 3.63 26.750 0.00 1.49 2.054 O | | | | 3.61 26.833 0.00 1.49 2.044 O | | | | 3.60 26.917 0.00 1.48 2.033 O | | | | 3.59 27.000 0.00 1.48 2.023 O | | | | 3.57 27.083 0.00 1.47 2.013 O | | | | 3.56 27.167 0.00 1.47 2.003 O | | | | 3.54 27.250 0.00 1.46 1.993 O | | | | 3.53 27.333 0.00 1.46 1.983 O | | | | 3.52 27.417 0.00 1.45 1.973 O | | | | 3.50 27.500 0.00 1.45 1.963 O | | | | 3.49 27.583 0.00 1.44 1.953 O | | | | 3.48 27.667 0.00 1.44 1.943 O | | | | 3.46 27.750 0.00 1.43 1.933 O | | | | 3.45 27.833 0.00 1.43 1.923 O | | | | 3.44 27.917 0.00 1.42 1.914 O | | | | 3.42 28.000 0.00 1.42 1.904 O | | | | 3.41 28.083 0.00 1.41 1.894 O | | | | 3.40 28.167 0.00 1.41 1.884 O | | | | 3.38 28.250 0.00 1.40 1.875 O | | | | 3.37 28.333 0.00 1.40 1.865 O | | | | 3.36 28.417 0.00 1.39 1.855 O | | | | 3.35 28.500 0.00 1.39 1.846 O | | | | 3.33 28.583 0.00 1.38 1.836 O | | | | 3.32 28.667 0.00 1.38 1.827 O | | | | 3.31 28.750 0.00 1.38 1.817 O | | | | 3.29 28.833 0.00 1.37 1.808 O | | | | 3.28 28.917 0.00 1.37 1.798 O | | | | 3.27 29.000 0.00 1.36 1.789 O | | | | 3.26 29.083 0.00 1.36 1.780 O | | | | 3.24 29.167 0.00 1.35 1.770 O | | | | 3.23 29.250 0.00 1.35 1.761 O | | | | 3.22 29.333 0.00 1.34 1.752 O | | | | 3.20 29.417 0.00 1.34 1.742 O | | | | 3.19 29.500 0.00 1.33 1.733 O | | | | 3.18 29.583 0.00 1.33 1.724 O | | | | 3.17 29.667 0.00 1.33 1.715 O | | | | 3.16 29.750 0.00 1.32 1.706 O | | | | 3.14 29.833 0.00 1.32 1.697 O | | | | 3.13 29.917 0.00 1.31 1.688 O | | | | 3.12 30.000 0.00 1.31 1.679 O | | | | 3.11 30.083 0.00 1.30 1.670 O | | | | 3.09 30.167 0.00 1.30 1.661 O | | | | 3.08 30.250 0.00 1.30 1.652 O | | | | 3.07 30.333 0.00 1.29 1.643 O | | | | 3.06 30.417 0.00 1.29 1.634 O | | | | 3.05 30.500 0.00 1.28 1.625 O | | | | 3.03 30.583 0.00 1.28 1.616 O | | | | 3.02 30.667 0.00 1.27 1.607 O | | | | 3.01 30.750 0.00 1.27 1.599 O | | | | 3.00 30.833 0.00 1.27 1.590 O | | | | 2.99 30.917 0.00 1.27 1.581 O | | | | 2.97 31.000 0.00 1.27 1.572 O | | | | 2.96 31.083 0.00 1.27 1.564 O | | | | 2.95 31.167 0.00 1.27 1.555 O | | | | 2.93 31.250 0.00 1.27 1.546 O | | | | 2.92 31.333 0.00 1.27 1.538 O | | | | 2.91 31.417 0.00 1.27 1.529 O | | | | 2.90 31.500 0.00 1.27 1.520 O | | | | 2.88 31.583 0.00 1.27 1.511 O | | | | 2.87 31.667 0.00 1.27 1.503 O | | | | 2.86 31.750 0.00 1.27 1.494 O | | | | 2.84 31.833 0.00 1.27 1.485 O | | | | 2.83 31.917 0.00 1.27 1.476 O | | | | 2.82 32.000 0.00 1.27 1.468 O | | | | 2.81 32.083 0.00 1.27 1.459 O | | | | 2.79 32.167 0.00 1.27 1.450 O | | | | 2.78 32.250 0.00 1.27 1.441 O | | | | 2.77 32.333 0.00 1.27 1.433 O | | | | 2.75 32.417 0.00 1.27 1.424 O | | | | 2.74 32.500 0.00 1.27 1.415 O | | | | 2.73 32.583 0.00 1.27 1.406 O | | | | 2.72 32.667 0.00 1.27 1.398 O | | | | 2.70 32.750 0.00 1.27 1.389 O | | | | 2.69 32.833 0.00 1.27 1.380 O | | | | 2.68 32.917 0.00 1.27 1.371 O | | | | 2.66 33.000 0.00 1.27 1.363 O | | | | 2.65 33.083 0.00 1.27 1.354 O | | | | 2.64 33.167 0.00 1.27 1.345 O | | | | 2.63 33.250 0.00 1.27 1.336 O | | | | 2.61 33.333 0.00 1.27 1.328 O | | | | 2.60 33.417 0.00 1.27 1.319 O | | | | 2.59 33.500 0.00 1.27 1.310 O | | | | 2.57 33.583 0.00 1.27 1.301 O | | | | 2.56 33.667 0.00 1.27 1.293 O | | | | 2.55 33.750 0.00 1.27 1.284 O | | | | 2.54 33.833 0.00 1.27 1.275 O | | | | 2.52 33.917 0.00 1.27 1.266 O | | | | 2.51 34.000 0.00 1.27 1.258 O | | | | 2.50 34.083 0.00 1.27 1.249 O | | | | 2.48 34.167 0.00 1.27 1.240 O | | | | 2.47 34.250 0.00 1.27 1.231 O | | | | 2.46 34.333 0.00 1.27 1.223 O | | | | 2.45 34.417 0.00 1.27 1.214 O | | | | 2.43 34.500 0.00 1.27 1.205 O | | | | 2.42 34.583 0.00 1.27 1.196 O | | | | 2.41 34.667 0.00 1.27 1.188 O | | | | 2.39 34.750 0.00 1.27 1.179 O | | | | 2.38 34.833 0.00 1.27 1.170 O | | | | 2.37 34.917 0.00 1.27 1.161 O | | | | 2.36 35.000 0.00 1.27 1.153 O | | | | 2.34 35.083 0.00 1.27 1.144 O | | | | 2.33 35.167 0.00 1.27 1.135 O | | | | 2.32 35.250 0.00 1.27 1.126 O | | | | 2.30 35.333 0.00 1.27 1.118 O | | | | 2.29 35.417 0.00 1.27 1.109 O | | | | 2.28 35.500 0.00 1.27 1.100 O | | | | 2.26 35.583 0.00 1.27 1.091 O | | | | 2.25 35.667 0.00 1.27 1.083 O | | | | 2.24 35.750 0.00 1.27 1.074 O | | | | 2.23 35.833 0.00 1.27 1.065 O | | | | 2.21 35.917 0.00 1.27 1.056 O | | | | 2.20 36.000 0.00 1.27 1.048 O | | | | 2.19 36.083 0.00 1.27 1.039 O | | | | 2.17 36.167 0.00 1.27 1.030 O | | | | 2.16 36.250 0.00 1.27 1.021 O | | | | 2.15 36.333 0.00 1.27 1.013 O | | | | 2.14 36.417 0.00 1.27 1.004 O | | | | 2.12 36.500 0.00 1.27 0.995 O | | | | 2.11 36.583 0.00 1.27 0.986 O | | | | 2.10 36.667 0.00 1.27 0.978 O | | | | 2.08 36.750 0.00 1.27 0.969 O | | | | 2.07 36.833 0.00 1.27 0.960 O | | | | 2.06 36.917 0.00 1.27 0.951 O | | | | 2.05 37.000 0.00 1.27 0.943 O | | | | 2.03 37.083 0.00 1.27 0.934 O | | | | 2.02 37.167 0.00 1.27 0.925 O | | | | 2.01 37.250 0.00 1.27 0.917 O | | | | 1.99 37.333 0.00 1.27 0.908 O | | | | 1.98 37.417 0.00 1.27 0.899 O | | | | 1.96 37.500 0.00 1.27 0.890 O | | | | 1.95 37.583 0.00 1.27 0.882 O | | | | 1.93 37.667 0.00 1.27 0.873 O | | | | 1.91 37.750 0.00 1.27 0.864 O | | | | 1.90 37.833 0.00 1.27 0.855 O | | | | 1.88 37.917 0.00 1.27 0.847 O | | | | 1.87 38.000 0.00 1.27 0.838 O | | | | 1.85 38.083 0.00 1.27 0.829 O | | | | 1.83 38.167 0.00 1.27 0.820 O | | | | 1.82 38.250 0.00 1.27 0.812 O | | | | 1.80 38.333 0.00 1.27 0.803 O | | | | 1.79 38.417 0.00 1.27 0.794 O | | | | 1.77 38.500 0.00 1.27 0.785 O | | | | 1.76 38.583 0.00 1.27 0.777 O | | | | 1.74 38.667 0.00 1.27 0.768 O | | | | 1.72 38.750 0.00 1.27 0.759 O | | | | 1.71 38.833 0.00 1.27 0.750 O | | | | 1.69 38.917 0.00 1.27 0.742 O | | | | 1.68 39.000 0.00 1.27 0.733 O | | | | 1.66 39.083 0.00 1.27 0.724 O | | | | 1.64 39.167 0.00 1.27 0.715 O | | | | 1.63 39.250 0.00 1.27 0.707 O | | | | 1.61 39.333 0.00 1.27 0.698 O | | | | 1.60 39.417 0.00 1.27 0.689 O | | | | 1.58 39.500 0.00 1.27 0.680 O | | | | 1.56 39.583 0.00 1.27 0.672 O | | | | 1.55 39.667 0.00 1.27 0.663 O | | | | 1.53 39.750 0.00 1.27 0.654 O | | | | 1.52 39.833 0.00 1.27 0.645 O | | | | 1.50 39.917 0.00 1.27 0.637 O | | | | 1.48 40.000 0.00 1.27 0.628 O | | | | 1.47 40.083 0.00 1.27 0.619 O | | | | 1.45 40.167 0.00 1.27 0.610 O | | | | 1.44 40.250 0.00 1.27 0.602 O | | | | 1.42 40.333 0.00 1.27 0.593 O | | | | 1.41 40.417 0.00 1.27 0.584 O | | | | 1.39 40.500 0.00 1.27 0.575 O | | | | 1.37 40.583 0.00 1.27 0.567 O | | | | 1.36 40.667 0.00 1.27 0.558 O | | | | 1.34 40.750 0.00 1.27 0.549 O | | | | 1.33 40.833 0.00 1.27 0.540 O | | | | 1.31 40.917 0.00 1.27 0.532 O | | | | 1.29 41.000 0.00 1.27 0.523 O | | | | 1.28 41.083 0.00 1.27 0.514 O | | | | 1.26 41.167 0.00 1.27 0.505 O | | | | 1.25 41.250 0.00 1.27 0.497 O | | | | 1.23 41.333 0.00 1.27 0.488 O | | | | 1.21 41.417 0.00 1.27 0.479 O | | | | 1.20 41.500 0.00 1.27 0.470 O | | | | 1.18 41.583 0.00 1.27 0.462 O | | | | 1.17 41.667 0.00 1.27 0.453 O | | | | 1.15 41.750 0.00 1.27 0.444 O | | | | 1.13 41.833 0.00 1.27 0.435 O | | | | 1.12 41.917 0.00 1.27 0.427 O | | | | 1.10 42.000 0.00 1.27 0.418 O | | | | 1.09 42.083 0.00 1.27 0.409 O | | | | 1.07 42.167 0.00 1.27 0.400 O | | | | 1.06 42.250 0.00 1.27 0.392 O | | | | 1.04 42.333 0.00 1.27 0.383 O | | | | 1.02 42.417 0.00 1.27 0.374 O | | | | 1.01 42.500 0.00 1.25 0.366 O | | | | 0.99 42.583 0.00 1.23 0.357 O | | | | 0.96 42.667 0.00 1.20 0.349 O | | | | 0.94 42.750 0.00 1.17 0.340 O | | | | 0.92 42.833 0.00 1.14 0.333 O | | | | 0.90 42.917 0.00 1.11 0.325 O | | | | 0.88 43.000 0.00 1.09 0.317 O | | | | 0.86 43.083 0.00 1.06 0.310 O | | | | 0.84 43.167 0.00 1.04 0.303 O | | | | 0.82 43.250 0.00 1.01 0.295 O | | | | 0.80 43.333 0.00 0.99 0.289 O | | | | 0.78 43.417 0.00 0.97 0.282 O | | | | 0.76 43.500 0.00 0.94 0.275 O | | | | 0.74 43.583 0.00 0.92 0.269 O | | | | 0.73 43.667 0.00 0.90 0.263 O | | | | 0.71 43.750 0.00 0.88 0.256 O | | | | 0.69 43.833 0.00 0.86 0.250 O | | | | 0.68 43.917 0.00 0.84 0.245 O | | | | 0.66 44.000 0.00 0.82 0.239 O | | | | 0.65 44.083 0.00 0.80 0.233 O | | | | 0.63 44.167 0.00 0.78 0.228 O | | | | 0.62 44.250 0.00 0.76 0.222 O | | | | 0.60 44.333 0.00 0.75 0.217 O | | | | 0.59 44.417 0.00 0.73 0.212 O | | | | 0.57 44.500 0.00 0.71 0.207 O | | | | 0.56 44.583 0.00 0.69 0.202 O | | | | 0.55 44.667 0.00 0.68 0.198 O | | | | 0.53 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.66 0.193 O | | | | 0.52 44.833 0.00 0.65 0.189 O | | | | 0.51 44.917 0.00 0.63 0.184 O | | | | 0.50 45.000 0.00 0.62 0.180 O | | | | 0.49 45.083 0.00 0.60 0.176 O | | | | 0.47 45.167 0.00 0.59 0.172 O | | | | 0.46 45.250 0.00 0.58 0.168 O | | | | 0.45 45.333 0.00 0.56 0.164 O | | | | 0.44 45.417 0.00 0.55 0.160 O | | | | 0.43 45.500 0.00 0.54 0.156 O | | | | 0.42 45.583 0.00 0.52 0.152 O | | | | 0.41 45.667 0.00 0.51 0.149 O | | | | 0.40 45.750 0.00 0.50 0.145 O | | | | 0.39 45.833 0.00 0.49 0.142 O | | | | 0.38 45.917 0.00 0.48 0.139 O | | | | 0.37 46.000 0.00 0.46 0.135 O | | | | 0.36 46.083 0.00 0.44 0.129 O | | | | 0.35 46.167 0.00 0.43 0.126 O | | | | 0.34 46.250 0.00 0.42 0.120 O | | | | 0.32 46.333 0.00 0.38 0.112 O | | | | 0.30 46.417 0.00 0.35 0.107 O | | | | 0.28 46.500 0.00 0.34 0.100 O | | | | 0.27 46.583 0.00 0.32 0.093 O | | | | 0.25 46.667 0.00 0.29 0.084 O | | | | 0.23 46.750 0.00 0.28 0.081 O | | | | 0.22 46.833 0.00 0.26 0.077 O | | | | 0.21 46.917 0.00 0.25 0.073 O | | | | 0.20 47.000 0.00 0.22 0.065 O | | | | 0.18 47.083 0.00 0.21 0.062 O | | | | 0.17 47.167 0.00 0.18 0.054 O | | | | 0.15 47.250 0.00 0.17 0.050 O | | | | 0.14 47.333 0.00 0.16 0.047 O | | | | 0.13 47.417 0.00 0.15 0.044 O | | | | 0.12 47.500 0.00 0.12 0.035 O | | | | 0.10 47.583 0.00 0.10 0.028 O | | | | 0.08 47.667 0.00 0.08 0.024 O | | | | 0.07 47.750 0.00 0.06 0.017 O | | | | 0.05 47.833 0.00 0.04 0.013 O | | | | 0.04 47.917 0.00 0.02 0.006 O | | | | 0.02 48.000 0.00 0.00 0.000 O | | | | 0.00 48.083 0.00 0.00 0.000 O | | | | 0.00 48.167 0.00 0.00 0.000 O | | | | 0.00 48.250 0.00 0.00 0.000 O | | | | 0.00 48.333 0.00 0.00 0.000 O | | | | 0.00 48.417 0.00 0.00 0.000 O | | | | 0.00 48.500 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 582 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 23.295 (CFS) Total volume = 10.233 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.5 BASIN ROUTING ANALYSIS DRAINAGE AREA B – 2 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 2 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER B -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH2POSTB.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 17.810 (CFS) Total volume = 2.220 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.210 1.000 0.207 0.213 2.000 0.520 1.000 0.517 0.523 3.000 0.900 1.000 0.897 0.903 4.000 1.320 1.040 1.316 1.324 5.000 1.760 4.580 1.744 1.776 6.000 2.190 6.510 2.168 2.212 7.000 2.610 7.980 2.583 2.637 8.000 2.900 9.220 2.868 2.932 9.000 3.310 10.320 3.274 3.346 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 4.5 8.91 13.36 17.81 (Ft.) 0.083 0.05 0.00 0.000 O | | | | 0.00 0.167 0.28 0.01 0.001 O | | | | 0.01 0.250 0.44 0.02 0.004 O | | | | 0.02 0.333 0.47 0.03 0.007 O | | | | 0.03 0.417 0.48 0.05 0.010 O | | | | 0.05 0.500 0.48 0.06 0.012 O | | | | 0.06 0.583 0.48 0.07 0.015 O | | | | 0.07 0.667 0.48 0.09 0.018 O | | | | 0.09 0.750 0.48 0.10 0.021 O | | | | 0.10 0.833 0.48 0.11 0.023 O | | | | 0.11 0.917 0.48 0.12 0.026 O | | | | 0.12 1.000 0.49 0.13 0.028 O | | | | 0.13 1.083 0.49 0.15 0.031 O | | | | 0.15 1.167 0.49 0.16 0.033 O | | | | 0.16 1.250 0.49 0.17 0.035 O | | | | 0.17 1.333 0.49 0.18 0.037 O | | | | 0.18 1.417 0.49 0.19 0.040 O | | | | 0.19 1.500 0.50 0.20 0.042 O | | | | 0.20 1.583 0.50 0.21 0.044 O | | | | 0.21 1.667 0.50 0.22 0.046 O | | | | 0.22 1.750 0.50 0.23 0.048 O | | | | 0.23 1.833 0.50 0.24 0.049 O | | | | 0.24 1.917 0.50 0.24 0.051 O | | | | 0.24 2.000 0.51 0.25 0.053 O | | | | 0.25 2.083 0.51 0.26 0.055 O | | | | 0.26 2.167 0.51 0.27 0.056 O | | | | 0.27 2.250 0.51 0.28 0.058 O | | | | 0.28 2.333 0.51 0.28 0.060 O | | | | 0.28 2.417 0.51 0.29 0.061 O | | | | 0.29 2.500 0.52 0.30 0.063 O | | | | 0.30 2.583 0.52 0.31 0.064 O | | | | 0.31 2.667 0.52 0.31 0.066 O | | | | 0.31 2.750 0.52 0.32 0.067 O | | | | 0.32 2.833 0.52 0.33 0.068 O | | | | 0.33 2.917 0.52 0.33 0.070 O | | | | 0.33 3.000 0.53 0.34 0.071 O | | | | 0.34 3.083 0.53 0.34 0.072 O | | | | 0.34 3.167 0.53 0.35 0.074 O | | | | 0.35 3.250 0.53 0.36 0.075 O | | | | 0.36 3.333 0.53 0.36 0.076 O | | | | 0.36 3.417 0.54 0.37 0.077 O | | | | 0.37 3.500 0.54 0.37 0.078 O | | | | 0.37 3.583 0.54 0.38 0.079 O | | | | 0.38 3.667 0.54 0.38 0.081 O | | | | 0.38 3.750 0.54 0.39 0.082 O | | | | 0.39 3.833 0.55 0.39 0.083 O | | | | 0.39 3.917 0.55 0.40 0.084 O | | | | 0.40 4.000 0.55 0.40 0.085 O | | | | 0.40 4.083 0.55 0.41 0.086 O | | | | 0.41 4.167 0.56 0.41 0.087 O | | | | 0.41 4.250 0.56 0.42 0.088 OI | | | | 0.42 4.333 0.56 0.42 0.089 OI | | | | 0.42 4.417 0.56 0.43 0.090 OI | | | | 0.43 4.500 0.56 0.43 0.091 OI | | | | 0.43 4.583 0.57 0.44 0.091 OI | | | | 0.44 4.667 0.57 0.44 0.092 OI | | | | 0.44 4.750 0.57 0.44 0.093 OI | | | | 0.44 4.833 0.57 0.45 0.094 OI | | | | 0.45 4.917 0.58 0.45 0.095 OI | | | | 0.45 5.000 0.58 0.46 0.096 OI | | | | 0.46 5.083 0.58 0.46 0.097 OI | | | | 0.46 5.167 0.58 0.46 0.098 OI | | | | 0.46 5.250 0.59 0.47 0.098 OI | | | | 0.47 5.333 0.59 0.47 0.099 OI | | | | 0.47 5.417 0.59 0.48 0.100 OI | | | | 0.48 5.500 0.59 0.48 0.101 OI | | | | 0.48 5.583 0.60 0.48 0.102 OI | | | | 0.48 5.667 0.60 0.49 0.102 OI | | | | 0.49 5.750 0.60 0.49 0.103 OI | | | | 0.49 5.833 0.61 0.49 0.104 OI | | | | 0.49 5.917 0.61 0.50 0.105 OI | | | | 0.50 6.000 0.61 0.50 0.105 OI | | | | 0.50 6.083 0.61 0.51 0.106 OI | | | | 0.51 6.167 0.62 0.51 0.107 OI | | | | 0.51 6.250 0.62 0.51 0.108 OI | | | | 0.51 6.333 0.62 0.52 0.108 OI | | | | 0.52 6.417 0.63 0.52 0.109 OI | | | | 0.52 6.500 0.63 0.52 0.110 OI | | | | 0.52 6.583 0.63 0.53 0.111 OI | | | | 0.53 6.667 0.63 0.53 0.111 OI | | | | 0.53 6.750 0.64 0.53 0.112 OI | | | | 0.53 6.833 0.64 0.54 0.113 OI | | | | 0.54 6.917 0.64 0.54 0.113 OI | | | | 0.54 7.000 0.65 0.54 0.114 OI | | | | 0.54 7.083 0.65 0.55 0.115 OI | | | | 0.55 7.167 0.65 0.55 0.116 OI | | | | 0.55 7.250 0.66 0.55 0.116 OI | | | | 0.55 7.333 0.66 0.56 0.117 |O | | | | 0.56 7.417 0.67 0.56 0.118 |O | | | | 0.56 7.500 0.67 0.56 0.118 |O | | | | 0.56 7.583 0.67 0.57 0.119 |O | | | | 0.57 7.667 0.68 0.57 0.120 |O | | | | 0.57 7.750 0.68 0.57 0.121 |O | | | | 0.57 7.833 0.68 0.58 0.121 |O | | | | 0.58 7.917 0.69 0.58 0.122 |O | | | | 0.58 8.000 0.69 0.58 0.123 |O | | | | 0.58 8.083 0.70 0.59 0.124 |O | | | | 0.59 8.167 0.70 0.59 0.124 |O | | | | 0.59 8.250 0.70 0.60 0.125 |O | | | | 0.60 8.333 0.71 0.60 0.126 |O | | | | 0.60 8.417 0.71 0.60 0.127 |O | | | | 0.60 8.500 0.72 0.61 0.127 |O | | | | 0.61 8.583 0.72 0.61 0.128 |O | | | | 0.61 8.667 0.73 0.61 0.129 |O | | | | 0.61 8.750 0.73 0.62 0.130 |O | | | | 0.62 8.833 0.74 0.62 0.130 |O | | | | 0.62 8.917 0.74 0.63 0.131 |O | | | | 0.63 9.000 0.75 0.63 0.132 |O | | | | 0.63 9.083 0.75 0.63 0.133 |O | | | | 0.63 9.167 0.76 0.64 0.134 |O | | | | 0.64 9.250 0.76 0.64 0.135 |O | | | | 0.64 9.333 0.77 0.64 0.135 |O | | | | 0.64 9.417 0.77 0.65 0.136 |O | | | | 0.65 9.500 0.78 0.65 0.137 |O | | | | 0.65 9.583 0.78 0.66 0.138 |O | | | | 0.66 9.667 0.79 0.66 0.139 |O | | | | 0.66 9.750 0.79 0.67 0.140 |O | | | | 0.67 9.833 0.80 0.67 0.141 |O | | | | 0.67 9.917 0.81 0.67 0.141 |O | | | | 0.67 10.000 0.81 0.68 0.142 |O | | | | 0.68 10.083 0.82 0.68 0.143 |O | | | | 0.68 10.167 0.83 0.69 0.144 |O | | | | 0.69 10.250 0.83 0.69 0.145 |O | | | | 0.69 10.333 0.84 0.70 0.146 |O | | | | 0.70 10.417 0.85 0.70 0.147 |O | | | | 0.70 10.500 0.85 0.71 0.148 |O | | | | 0.71 10.583 0.86 0.71 0.149 |O | | | | 0.71 10.667 0.87 0.72 0.150 |O | | | | 0.72 10.750 0.87 0.72 0.151 |O | | | | 0.72 10.833 0.88 0.73 0.152 |O | | | | 0.73 10.917 0.89 0.73 0.153 |O | | | | 0.73 11.000 0.90 0.74 0.155 |O | | | | 0.74 11.083 0.91 0.74 0.156 |O | | | | 0.74 11.167 0.92 0.75 0.157 |O | | | | 0.75 11.250 0.92 0.75 0.158 |O | | | | 0.75 11.333 0.93 0.76 0.159 |O | | | | 0.76 11.417 0.94 0.76 0.160 |O | | | | 0.76 11.500 0.95 0.77 0.162 |O | | | | 0.77 11.583 0.96 0.78 0.163 |O | | | | 0.78 11.667 0.97 0.78 0.164 |O | | | | 0.78 11.750 0.98 0.79 0.166 |O | | | | 0.79 11.833 0.99 0.80 0.167 |O | | | | 0.80 11.917 1.00 0.80 0.168 |O | | | | 0.80 12.000 1.02 0.81 0.170 |O | | | | 0.81 12.083 1.06 0.82 0.171 |O | | | | 0.82 12.167 1.20 0.83 0.173 |OI | | | | 0.83 12.250 1.30 0.84 0.176 |OI | | | | 0.84 12.333 1.33 0.85 0.180 |OI | | | | 0.85 12.417 1.35 0.87 0.183 |OI | | | | 0.87 12.500 1.37 0.89 0.186 |OI | | | | 0.89 12.583 1.38 0.90 0.189 |OI | | | | 0.90 12.667 1.39 0.92 0.193 |OI | | | | 0.92 12.750 1.41 0.93 0.196 |OI | | | | 0.93 12.833 1.43 0.95 0.199 |OI | | | | 0.95 12.917 1.44 0.96 0.203 |OI | | | | 0.96 13.000 1.46 0.98 0.206 |OI | | | | 0.98 13.083 1.48 1.00 0.209 |OI | | | | 1.00 13.167 1.50 1.00 0.213 |OI | | | | 1.01 13.250 1.52 1.00 0.216 |OI | | | | 1.02 13.333 1.54 1.00 0.220 |OI | | | | 1.03 13.417 1.56 1.00 0.223 |OI | | | | 1.04 13.500 1.58 1.00 0.227 |OI | | | | 1.06 13.583 1.60 1.00 0.231 |OI | | | | 1.07 13.667 1.63 1.00 0.236 |OI | | | | 1.08 13.750 1.65 1.00 0.240 |OI | | | | 1.10 13.833 1.68 1.00 0.245 |O I | | | | 1.11 13.917 1.71 1.00 0.249 |O I | | | | 1.13 14.000 1.74 1.00 0.254 |O I | | | | 1.14 14.083 1.77 1.00 0.260 |O I | | | | 1.16 14.167 1.80 1.00 0.265 |O I | | | | 1.18 14.250 1.84 1.00 0.271 |O I | | | | 1.20 14.333 1.88 1.00 0.277 |O I | | | | 1.21 14.417 1.92 1.00 0.283 |O I | | | | 1.23 14.500 1.96 1.00 0.289 |O I | | | | 1.26 14.583 2.01 1.00 0.296 |O I | | | | 1.28 14.667 2.06 1.00 0.303 |O I | | | | 1.30 14.750 2.11 1.00 0.311 |O I | | | | 1.32 14.833 2.17 1.00 0.318 |O I | | | | 1.35 14.917 2.23 1.00 0.327 |O I | | | | 1.38 15.000 2.31 1.00 0.335 |O I | | | | 1.40 15.083 2.38 1.00 0.345 |O I | | | | 1.43 15.167 2.48 1.00 0.355 |O I | | | | 1.47 15.250 2.57 1.00 0.365 |O I | | | | 1.50 15.333 2.69 1.00 0.376 |O I | | | | 1.54 15.417 2.74 1.00 0.388 |O I | | | | 1.57 15.500 2.52 1.00 0.399 |O I | | | | 1.61 15.583 2.44 1.00 0.409 |O I | | | | 1.64 15.667 2.63 1.00 0.420 |O I | | | | 1.68 15.750 2.90 1.00 0.432 |O I | | | | 1.72 15.833 3.34 1.00 0.447 |O I | | | | 1.76 15.917 3.96 1.00 0.465 |O I| | | | 1.82 16.000 5.29 1.00 0.490 |O |I | | | 1.90 16.083 9.26 1.00 0.533 |O | I | | 2.03 16.167 17.81 1.00 0.620 |O | | | I 2.26 16.250 12.75 1.00 0.718 |O | | I | | 2.52 16.333 5.34 1.00 0.773 |O |I | | | 2.67 16.417 3.35 1.00 0.796 |O I | | | | 2.73 16.500 2.84 1.00 0.811 |O I | | | | 2.77 16.583 2.74 1.00 0.823 |O I | | | | 2.80 16.667 2.55 1.00 0.834 |O I | | | | 2.83 16.750 2.37 1.00 0.844 |O I | | | | 2.85 16.833 2.22 1.00 0.853 |O I | | | | 2.88 16.917 2.10 1.00 0.861 |O I | | | | 2.90 17.000 2.00 1.00 0.869 |O I | | | | 2.92 17.083 1.91 1.00 0.875 |O I | | | | 2.93 17.167 1.83 1.00 0.881 |O I | | | | 2.95 17.250 1.76 1.00 0.887 |O I | | | | 2.96 17.333 1.70 1.00 0.892 |O I | | | | 2.98 17.417 1.65 1.00 0.896 |OI | | | | 2.99 17.500 1.60 1.00 0.901 |OI | | | | 3.00 17.583 1.55 1.00 0.904 |OI | | | | 3.01 17.667 1.51 1.00 0.908 |OI | | | | 3.02 17.750 1.47 1.00 0.912 |OI | | | | 3.03 17.833 1.44 1.00 0.915 |OI | | | | 3.03 17.917 1.41 1.00 0.918 |OI | | | | 3.04 18.000 1.38 1.00 0.920 |OI | | | | 3.05 18.083 1.32 1.00 0.923 |OI | | | | 3.05 18.167 1.16 1.00 0.924 |OI | | | | 3.06 18.250 1.05 1.00 0.925 |O | | | | 3.06 18.333 1.01 1.00 0.925 |O | | | | 3.06 18.417 0.98 1.00 0.925 |O | | | | 3.06 18.500 0.96 1.00 0.925 |O | | | | 3.06 18.583 0.94 1.00 0.924 |O | | | | 3.06 18.667 0.92 1.00 0.924 |O | | | | 3.06 18.750 0.91 1.00 0.923 |O | | | | 3.06 18.833 0.89 1.00 0.923 |O | | | | 3.05 18.917 0.87 1.00 0.922 |O | | | | 3.05 19.000 0.86 1.00 0.921 |O | | | | 3.05 19.083 0.84 1.00 0.920 |O | | | | 3.05 19.167 0.83 1.00 0.919 |O | | | | 3.04 19.250 0.82 1.00 0.917 |O | | | | 3.04 19.333 0.80 1.00 0.916 |O | | | | 3.04 19.417 0.79 1.00 0.915 |O | | | | 3.04 19.500 0.78 1.00 0.913 |O | | | | 3.03 19.583 0.77 1.00 0.912 |O | | | | 3.03 19.667 0.76 1.00 0.910 |O | | | | 3.02 19.750 0.75 1.00 0.908 |O | | | | 3.02 19.833 0.74 1.00 0.907 |O | | | | 3.02 19.917 0.73 1.00 0.905 |O | | | | 3.01 20.000 0.72 1.00 0.903 |O | | | | 3.01 20.083 0.71 1.00 0.901 |O | | | | 3.00 20.167 0.70 1.00 0.899 |O | | | | 3.00 20.250 0.70 1.00 0.897 |O | | | | 2.99 20.333 0.69 1.00 0.895 |O | | | | 2.99 20.417 0.68 1.00 0.893 |O | | | | 2.98 20.500 0.67 1.00 0.890 |O | | | | 2.97 20.583 0.66 1.00 0.888 |O | | | | 2.97 20.667 0.66 1.00 0.886 |O | | | | 2.96 20.750 0.65 1.00 0.883 |O | | | | 2.96 20.833 0.64 1.00 0.881 |O | | | | 2.95 20.917 0.64 1.00 0.878 |O | | | | 2.94 21.000 0.63 1.00 0.876 |O | | | | 2.94 21.083 0.62 1.00 0.873 |O | | | | 2.93 21.167 0.62 1.00 0.871 |O | | | | 2.92 21.250 0.61 1.00 0.868 |O | | | | 2.92 21.333 0.61 1.00 0.865 |O | | | | 2.91 21.417 0.60 1.00 0.863 |O | | | | 2.90 21.500 0.60 1.00 0.860 |O | | | | 2.89 21.583 0.59 1.00 0.857 |O | | | | 2.89 21.667 0.59 1.00 0.854 |O | | | | 2.88 21.750 0.58 1.00 0.851 |O | | | | 2.87 21.833 0.58 1.00 0.849 |O | | | | 2.86 21.917 0.57 1.00 0.846 |O | | | | 2.86 22.000 0.57 1.00 0.843 |O | | | | 2.85 22.083 0.56 1.00 0.840 |O | | | | 2.84 22.167 0.56 1.00 0.837 |O | | | | 2.83 22.250 0.55 1.00 0.833 IO | | | | 2.82 22.333 0.55 1.00 0.830 IO | | | | 2.82 22.417 0.54 1.00 0.827 IO | | | | 2.81 22.500 0.54 1.00 0.824 IO | | | | 2.80 22.583 0.54 1.00 0.821 IO | | | | 2.79 22.667 0.53 1.00 0.818 IO | | | | 2.78 22.750 0.53 1.00 0.814 IO | | | | 2.77 22.833 0.52 1.00 0.811 IO | | | | 2.77 22.917 0.52 1.00 0.808 IO | | | | 2.76 23.000 0.52 1.00 0.805 IO | | | | 2.75 23.083 0.51 1.00 0.801 IO | | | | 2.74 23.167 0.51 1.00 0.798 IO | | | | 2.73 23.250 0.51 1.00 0.795 IO | | | | 2.72 23.333 0.50 1.00 0.791 IO | | | | 2.71 23.417 0.50 1.00 0.788 IO | | | | 2.70 23.500 0.50 1.00 0.784 IO | | | | 2.70 23.583 0.49 1.00 0.781 IO | | | | 2.69 23.667 0.49 1.00 0.777 IO | | | | 2.68 23.750 0.49 1.00 0.774 IO | | | | 2.67 23.833 0.48 1.00 0.770 IO | | | | 2.66 23.917 0.48 1.00 0.767 IO | | | | 2.65 24.000 0.48 1.00 0.763 IO | | | | 2.64 24.083 0.43 1.00 0.759 IO | | | | 2.63 24.167 0.19 1.00 0.755 IO | | | | 2.62 24.250 0.04 1.00 0.748 IO | | | | 2.60 24.333 0.01 1.00 0.742 IO | | | | 2.58 24.417 0.00 1.00 0.735 IO | | | | 2.57 24.500 0.00 1.00 0.728 IO | | | | 2.55 24.583 0.00 1.00 0.721 IO | | | | 2.53 24.667 0.00 1.00 0.714 IO | | | | 2.51 24.750 0.00 1.00 0.707 IO | | | | 2.49 24.833 0.00 1.00 0.700 IO | | | | 2.47 24.917 0.00 1.00 0.694 IO | | | | 2.46 25.000 0.00 1.00 0.687 IO | | | | 2.44 25.083 0.00 1.00 0.680 IO | | | | 2.42 25.167 0.00 1.00 0.673 IO | | | | 2.40 25.250 0.00 1.00 0.666 IO | | | | 2.38 25.333 0.00 1.00 0.659 IO | | | | 2.37 25.417 0.00 1.00 0.652 IO | | | | 2.35 25.500 0.00 1.00 0.645 IO | | | | 2.33 25.583 0.00 1.00 0.638 IO | | | | 2.31 25.667 0.00 1.00 0.632 IO | | | | 2.29 25.750 0.00 1.00 0.625 IO | | | | 2.28 25.833 0.00 1.00 0.618 IO | | | | 2.26 25.917 0.00 1.00 0.611 IO | | | | 2.24 26.000 0.00 1.00 0.604 IO | | | | 2.22 26.083 0.00 1.00 0.597 IO | | | | 2.20 26.167 0.00 1.00 0.590 IO | | | | 2.18 26.250 0.00 1.00 0.583 IO | | | | 2.17 26.333 0.00 1.00 0.576 IO | | | | 2.15 26.417 0.00 1.00 0.570 IO | | | | 2.13 26.500 0.00 1.00 0.563 IO | | | | 2.11 26.583 0.00 1.00 0.556 IO | | | | 2.09 26.667 0.00 1.00 0.549 IO | | | | 2.08 26.750 0.00 1.00 0.542 IO | | | | 2.06 26.833 0.00 1.00 0.535 IO | | | | 2.04 26.917 0.00 1.00 0.528 IO | | | | 2.02 27.000 0.00 1.00 0.521 IO | | | | 2.00 27.083 0.00 1.00 0.514 IO | | | | 1.98 27.167 0.00 1.00 0.508 IO | | | | 1.96 27.250 0.00 1.00 0.501 IO | | | | 1.94 27.333 0.00 1.00 0.494 IO | | | | 1.92 27.417 0.00 1.00 0.487 IO | | | | 1.89 27.500 0.00 1.00 0.480 IO | | | | 1.87 27.583 0.00 1.00 0.473 IO | | | | 1.85 27.667 0.00 1.00 0.466 IO | | | | 1.83 27.750 0.00 1.00 0.459 IO | | | | 1.80 27.833 0.00 1.00 0.452 IO | | | | 1.78 27.917 0.00 1.00 0.446 IO | | | | 1.76 28.000 0.00 1.00 0.439 IO | | | | 1.74 28.083 0.00 1.00 0.432 IO | | | | 1.72 28.167 0.00 1.00 0.425 IO | | | | 1.69 28.250 0.00 1.00 0.418 IO | | | | 1.67 28.333 0.00 1.00 0.411 IO | | | | 1.65 28.417 0.00 1.00 0.404 IO | | | | 1.63 28.500 0.00 1.00 0.397 IO | | | | 1.60 28.583 0.00 1.00 0.390 IO | | | | 1.58 28.667 0.00 1.00 0.384 IO | | | | 1.56 28.750 0.00 1.00 0.377 IO | | | | 1.54 28.833 0.00 1.00 0.370 IO | | | | 1.52 28.917 0.00 1.00 0.363 IO | | | | 1.49 29.000 0.00 1.00 0.356 IO | | | | 1.47 29.083 0.00 1.00 0.349 IO | | | | 1.45 29.167 0.00 1.00 0.342 IO | | | | 1.43 29.250 0.00 1.00 0.335 IO | | | | 1.40 29.333 0.00 1.00 0.329 IO | | | | 1.38 29.417 0.00 1.00 0.322 IO | | | | 1.36 29.500 0.00 1.00 0.315 IO | | | | 1.34 29.583 0.00 1.00 0.308 IO | | | | 1.32 29.667 0.00 1.00 0.301 IO | | | | 1.29 29.750 0.00 1.00 0.294 IO | | | | 1.27 29.833 0.00 1.00 0.287 IO | | | | 1.25 29.917 0.00 1.00 0.280 IO | | | | 1.23 30.000 0.00 1.00 0.273 IO | | | | 1.20 30.083 0.00 1.00 0.267 IO | | | | 1.18 30.167 0.00 1.00 0.260 IO | | | | 1.16 30.250 0.00 1.00 0.253 IO | | | | 1.14 30.333 0.00 1.00 0.246 IO | | | | 1.12 30.417 0.00 1.00 0.239 IO | | | | 1.09 30.500 0.00 1.00 0.232 IO | | | | 1.07 30.583 0.00 1.00 0.225 IO | | | | 1.05 30.667 0.00 1.00 0.218 IO | | | | 1.03 30.750 0.00 1.00 0.211 IO | | | | 1.00 30.833 0.00 0.97 0.205 IO | | | | 0.97 30.917 0.00 0.94 0.198 IO | | | | 0.94 31.000 0.00 0.91 0.192 IO | | | | 0.91 31.083 0.00 0.88 0.185 IO | | | | 0.88 31.167 0.00 0.85 0.179 IO | | | | 0.85 31.250 0.00 0.83 0.174 IO | | | | 0.83 31.333 0.00 0.80 0.168 IO | | | | 0.80 31.417 0.00 0.77 0.163 IO | | | | 0.77 31.500 0.00 0.75 0.157 IO | | | | 0.75 31.583 0.00 0.73 0.152 IO | | | | 0.73 31.667 0.00 0.70 0.147 IO | | | | 0.70 31.750 0.00 0.68 0.143 IO | | | | 0.68 31.833 0.00 0.66 0.138 IO | | | | 0.66 31.917 0.00 0.64 0.134 IO | | | | 0.64 32.000 0.00 0.62 0.129 IO | | | | 0.62 32.083 0.00 0.60 0.125 IO | | | | 0.60 32.167 0.00 0.58 0.121 IO | | | | 0.58 32.250 0.00 0.56 0.117 IO | | | | 0.56 32.333 0.00 0.54 0.113 O | | | | 0.54 32.417 0.00 0.52 0.110 O | | | | 0.52 32.500 0.00 0.51 0.106 O | | | | 0.51 32.583 0.00 0.49 0.103 O | | | | 0.49 32.667 0.00 0.47 0.099 O | | | | 0.47 32.750 0.00 0.46 0.096 O | | | | 0.46 32.833 0.00 0.44 0.093 O | | | | 0.44 32.917 0.00 0.43 0.090 O | | | | 0.43 33.000 0.00 0.42 0.087 O | | | | 0.42 33.083 0.00 0.40 0.084 O | | | | 0.40 33.167 0.00 0.39 0.082 O | | | | 0.39 33.250 0.00 0.38 0.079 O | | | | 0.38 33.333 0.00 0.36 0.076 O | | | | 0.36 33.417 0.00 0.35 0.074 O | | | | 0.35 33.500 0.00 0.34 0.072 O | | | | 0.34 33.583 0.00 0.33 0.069 O | | | | 0.33 33.667 0.00 0.32 0.067 O | | | | 0.32 33.750 0.00 0.31 0.065 O | | | | 0.31 33.833 0.00 0.30 0.063 O | | | | 0.30 33.917 0.00 0.29 0.061 O | | | | 0.29 34.000 0.00 0.28 0.059 O | | | | 0.28 34.083 0.00 0.27 0.057 O | | | | 0.27 34.167 0.00 0.26 0.055 O | | | | 0.26 34.250 0.00 0.25 0.053 O | | | | 0.25 34.333 0.00 0.25 0.052 O | | | | 0.25 34.417 0.00 0.24 0.050 O | | | | 0.24 34.500 0.00 0.23 0.048 O | | | | 0.23 34.583 0.00 0.22 0.047 O | | | | 0.22 34.667 0.00 0.22 0.045 O | | | | 0.22 34.750 0.00 0.21 0.044 O | | | | 0.21 34.833 0.00 0.20 0.042 O | | | | 0.20 34.917 0.00 0.20 0.041 O | | | | 0.20 35.000 0.00 0.19 0.040 O | | | | 0.19 35.083 0.00 0.18 0.038 O | | | | 0.18 35.167 0.00 0.18 0.037 O | | | | 0.18 35.250 0.00 0.17 0.036 O | | | | 0.17 35.333 0.00 0.17 0.035 O | | | | 0.17 35.417 0.00 0.16 0.034 O | | | | 0.16 35.500 0.00 0.16 0.033 O | | | | 0.16 35.583 0.00 0.15 0.032 O | | | | 0.15 35.667 0.00 0.15 0.031 O | | | | 0.15 35.750 0.00 0.14 0.030 O | | | | 0.14 35.833 0.00 0.14 0.029 O | | | | 0.14 35.917 0.00 0.13 0.028 O | | | | 0.13 36.000 0.00 0.13 0.027 O | | | | 0.13 36.083 0.00 0.12 0.026 O | | | | 0.12 36.167 0.00 0.12 0.025 O | | | | 0.12 36.250 0.00 0.12 0.024 O | | | | 0.12 36.333 0.00 0.11 0.023 O | | | | 0.11 36.417 0.00 0.11 0.023 O | | | | 0.11 36.500 0.00 0.10 0.022 O | | | | 0.10 36.583 0.00 0.10 0.021 O | | | | 0.10 36.667 0.00 0.10 0.021 O | | | | 0.10 36.750 0.00 0.09 0.020 O | | | | 0.09 36.833 0.00 0.09 0.019 O | | | | 0.09 36.917 0.00 0.09 0.019 O | | | | 0.09 37.000 0.00 0.09 0.018 O | | | | 0.09 37.083 0.00 0.08 0.017 O | | | | 0.08 37.167 0.00 0.08 0.017 O | | | | 0.08 37.250 0.00 0.08 0.016 O | | | | 0.08 37.333 0.00 0.08 0.016 O | | | | 0.08 37.417 0.00 0.07 0.015 O | | | | 0.07 37.500 0.00 0.07 0.015 O | | | | 0.07 37.583 0.00 0.07 0.014 O | | | | 0.07 37.667 0.00 0.07 0.014 O | | | | 0.07 37.750 0.00 0.06 0.013 O | | | | 0.06 37.833 0.00 0.06 0.013 O | | | | 0.06 37.917 0.00 0.06 0.013 O | | | | 0.06 38.000 0.00 0.06 0.012 O | | | | 0.06 38.083 0.00 0.06 0.012 O | | | | 0.06 38.167 0.00 0.05 0.011 O | | | | 0.05 38.250 0.00 0.05 0.011 O | | | | 0.05 38.333 0.00 0.05 0.011 O | | | | 0.05 38.417 0.00 0.05 0.010 O | | | | 0.05 38.500 0.00 0.05 0.010 O | | | | 0.05 38.583 0.00 0.05 0.010 O | | | | 0.05 38.667 0.00 0.04 0.009 O | | | | 0.04 38.750 0.00 0.04 0.009 O | | | | 0.04 38.833 0.00 0.04 0.009 O | | | | 0.04 38.917 0.00 0.04 0.008 O | | | | 0.04 39.000 0.00 0.04 0.008 O | | | | 0.04 39.083 0.00 0.04 0.008 O | | | | 0.04 39.167 0.00 0.04 0.008 O | | | | 0.04 39.250 0.00 0.04 0.007 O | | | | 0.04 39.333 0.00 0.03 0.007 O | | | | 0.03 39.417 0.00 0.03 0.007 O | | | | 0.03 39.500 0.00 0.03 0.007 O | | | | 0.03 39.583 0.00 0.03 0.007 O | | | | 0.03 39.667 0.00 0.03 0.006 O | | | | 0.03 39.750 0.00 0.03 0.006 O | | | | 0.03 39.833 0.00 0.03 0.006 O | | | | 0.03 39.917 0.00 0.03 0.006 O | | | | 0.03 40.000 0.00 0.03 0.006 O | | | | 0.03 40.083 0.00 0.03 0.005 O | | | | 0.03 40.167 0.00 0.02 0.005 O | | | | 0.02 40.250 0.00 0.02 0.005 O | | | | 0.02 40.333 0.00 0.02 0.005 O | | | | 0.02 40.417 0.00 0.02 0.005 O | | | | 0.02 40.500 0.00 0.02 0.005 O | | | | 0.02 40.583 0.00 0.02 0.004 O | | | | 0.02 40.667 0.00 0.02 0.004 O | | | | 0.02 40.750 0.00 0.02 0.004 O | | | | 0.02 40.833 0.00 0.02 0.004 O | | | | 0.02 40.917 0.00 0.02 0.004 O | | | | 0.02 41.000 0.00 0.02 0.004 O | | | | 0.02 41.083 0.00 0.02 0.004 O | | | | 0.02 41.167 0.00 0.02 0.004 O | | | | 0.02 41.250 0.00 0.02 0.003 O | | | | 0.02 41.333 0.00 0.02 0.003 O | | | | 0.02 41.417 0.00 0.02 0.003 O | | | | 0.02 41.500 0.00 0.01 0.003 O | | | | 0.01 41.583 0.00 0.01 0.003 O | | | | 0.01 41.667 0.00 0.01 0.003 O | | | | 0.01 41.750 0.00 0.01 0.003 O | | | | 0.01 41.833 0.00 0.01 0.003 O | | | | 0.01 41.917 0.00 0.01 0.003 O | | | | 0.01 42.000 0.00 0.01 0.003 O | | | | 0.01 42.083 0.00 0.01 0.002 O | | | | 0.01 42.167 0.00 0.01 0.002 O | | | | 0.01 42.250 0.00 0.01 0.002 O | | | | 0.01 42.333 0.00 0.01 0.002 O | | | | 0.01 42.417 0.00 0.01 0.002 O | | | | 0.01 42.500 0.00 0.01 0.002 O | | | | 0.01 42.583 0.00 0.01 0.002 O | | | | 0.01 42.667 0.00 0.01 0.002 O | | | | 0.01 42.750 0.00 0.01 0.002 O | | | | 0.01 42.833 0.00 0.01 0.002 O | | | | 0.01 42.917 0.00 0.01 0.002 O | | | | 0.01 43.000 0.00 0.01 0.002 O | | | | 0.01 43.083 0.00 0.01 0.002 O | | | | 0.01 43.167 0.00 0.01 0.002 O | | | | 0.01 43.250 0.00 0.01 0.002 O | | | | 0.01 43.333 0.00 0.01 0.001 O | | | | 0.01 43.417 0.00 0.01 0.001 O | | | | 0.01 43.500 0.00 0.01 0.001 O | | | | 0.01 43.583 0.00 0.01 0.001 O | | | | 0.01 43.667 0.00 0.01 0.001 O | | | | 0.01 43.750 0.00 0.01 0.001 O | | | | 0.01 43.833 0.00 0.01 0.001 O | | | | 0.01 43.917 0.00 0.01 0.001 O | | | | 0.01 44.000 0.00 0.01 0.001 O | | | | 0.01 44.083 0.00 0.01 0.001 O | | | | 0.01 44.167 0.00 0.01 0.001 O | | | | 0.01 44.250 0.00 0.00 0.001 O | | | | 0.00 44.333 0.00 0.00 0.001 O | | | | 0.00 44.417 0.00 0.00 0.001 O | | | | 0.00 44.500 0.00 0.00 0.001 O | | | | 0.00 44.583 0.00 0.00 0.001 O | | | | 0.00 44.667 0.00 0.00 0.001 O | | | | 0.00 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.00 0.001 O | | | | 0.00 44.833 0.00 0.00 0.001 O | | | | 0.00 44.917 0.00 0.00 0.001 O | | | | 0.00 45.000 0.00 0.00 0.001 O | | | | 0.00 45.083 0.00 0.00 0.001 O | | | | 0.00 45.167 0.00 0.00 0.001 O | | | | 0.00 45.250 0.00 0.00 0.001 O | | | | 0.00 45.333 0.00 0.00 0.001 O | | | | 0.00 45.417 0.00 0.00 0.001 O | | | | 0.00 45.500 0.00 0.00 0.001 O | | | | 0.00 45.583 0.00 0.00 0.001 O | | | | 0.00 45.667 0.00 0.00 0.001 O | | | | 0.00 45.750 0.00 0.00 0.001 O | | | | 0.00 45.833 0.00 0.00 0.001 O | | | | 0.00 45.917 0.00 0.00 0.001 O | | | | 0.00 46.000 0.00 0.00 0.001 O | | | | 0.00 46.083 0.00 0.00 0.001 O | | | | 0.00 46.167 0.00 0.00 0.000 O | | | | 0.00 46.250 0.00 0.00 0.000 O | | | | 0.00 46.333 0.00 0.00 0.000 O | | | | 0.00 46.417 0.00 0.00 0.000 O | | | | 0.00 46.500 0.00 0.00 0.000 O | | | | 0.00 46.583 0.00 0.00 0.000 O | | | | 0.00 46.667 0.00 0.00 0.000 O | | | | 0.00 46.750 0.00 0.00 0.000 O | | | | 0.00 46.833 0.00 0.00 0.000 O | | | | 0.00 46.917 0.00 0.00 0.000 O | | | | 0.00 47.000 0.00 0.00 0.000 O | | | | 0.00 47.083 0.00 0.00 0.000 O | | | | 0.00 47.167 0.00 0.00 0.000 O | | | | 0.00 47.250 0.00 0.00 0.000 O | | | | 0.00 47.333 0.00 0.00 0.000 O | | | | 0.00 47.417 0.00 0.00 0.000 O | | | | 0.00 47.500 0.00 0.00 0.000 O | | | | 0.00 47.583 0.00 0.00 0.000 O | | | | 0.00 47.667 0.00 0.00 0.000 O | | | | 0.00 47.750 0.00 0.00 0.000 O | | | | 0.00 47.833 0.00 0.00 0.000 O | | | | 0.00 47.917 0.00 0.00 0.000 O | | | | 0.00 48.000 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 576 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 1.002 (CFS) Total volume = 2.220 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.6 BASIN ROUTING ANALYSIS DRAINAGE AREA B– 10 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 10 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER B -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH10POSTB.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 29.240 (CFS) Total volume = 3.559 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.210 1.000 0.207 0.213 2.000 0.520 1.000 0.517 0.523 3.000 0.900 1.000 0.897 0.903 4.000 1.320 1.040 1.316 1.324 5.000 1.760 4.580 1.744 1.776 6.000 2.190 6.510 2.168 2.212 7.000 2.610 7.980 2.583 2.637 8.000 2.900 9.220 2.868 2.932 9.000 3.310 10.320 3.274 3.346 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 7.3 14.62 21.93 29.24 (Ft.) 0.083 0.08 0.00 0.000 O | | | | 0.00 0.167 0.47 0.01 0.002 O | | | | 0.01 0.250 0.72 0.03 0.006 O | | | | 0.03 0.333 0.77 0.05 0.011 O | | | | 0.05 0.417 0.78 0.08 0.016 O | | | | 0.08 0.500 0.79 0.10 0.021 O | | | | 0.10 0.583 0.79 0.12 0.025 O | | | | 0.12 0.667 0.79 0.14 0.030 O | | | | 0.14 0.750 0.79 0.16 0.034 O | | | | 0.16 0.833 0.80 0.18 0.039 O | | | | 0.18 0.917 0.80 0.20 0.043 O | | | | 0.20 1.000 0.80 0.22 0.047 O | | | | 0.22 1.083 0.80 0.24 0.051 O | | | | 0.24 1.167 0.81 0.26 0.055 O | | | | 0.26 1.250 0.81 0.28 0.058 O | | | | 0.28 1.333 0.81 0.29 0.062 O | | | | 0.29 1.417 0.81 0.31 0.065 O | | | | 0.31 1.500 0.82 0.33 0.069 O | | | | 0.33 1.583 0.82 0.34 0.072 O | | | | 0.34 1.667 0.82 0.36 0.075 O | | | | 0.36 1.750 0.82 0.37 0.078 O | | | | 0.37 1.833 0.83 0.39 0.082 O | | | | 0.39 1.917 0.83 0.40 0.085 O | | | | 0.40 2.000 0.83 0.42 0.087 O | | | | 0.42 2.083 0.84 0.43 0.090 O | | | | 0.43 2.167 0.84 0.44 0.093 O | | | | 0.44 2.250 0.84 0.46 0.096 O | | | | 0.46 2.333 0.84 0.47 0.098 O | | | | 0.47 2.417 0.85 0.48 0.101 O | | | | 0.48 2.500 0.85 0.49 0.103 O | | | | 0.49 2.583 0.85 0.50 0.106 O | | | | 0.50 2.667 0.86 0.52 0.108 O | | | | 0.52 2.750 0.86 0.53 0.110 O | | | | 0.53 2.833 0.86 0.54 0.113 O | | | | 0.54 2.917 0.86 0.55 0.115 O | | | | 0.55 3.000 0.87 0.56 0.117 O | | | | 0.56 3.083 0.87 0.57 0.119 O | | | | 0.57 3.167 0.87 0.58 0.121 O | | | | 0.58 3.250 0.88 0.59 0.123 O | | | | 0.59 3.333 0.88 0.60 0.125 O | | | | 0.60 3.417 0.88 0.61 0.127 O | | | | 0.61 3.500 0.89 0.61 0.129 O | | | | 0.61 3.583 0.89 0.62 0.131 O | | | | 0.62 3.667 0.89 0.63 0.133 O | | | | 0.63 3.750 0.90 0.64 0.135 O | | | | 0.64 3.833 0.90 0.65 0.136 O | | | | 0.65 3.917 0.90 0.66 0.138 O | | | | 0.66 4.000 0.91 0.66 0.140 O | | | | 0.66 4.083 0.91 0.67 0.141 O | | | | 0.67 4.167 0.91 0.68 0.143 O | | | | 0.68 4.250 0.92 0.69 0.144 OI | | | | 0.69 4.333 0.92 0.70 0.146 OI | | | | 0.70 4.417 0.92 0.70 0.148 OI | | | | 0.70 4.500 0.93 0.71 0.149 OI | | | | 0.71 4.583 0.93 0.72 0.151 OI | | | | 0.72 4.667 0.94 0.72 0.152 OI | | | | 0.72 4.750 0.94 0.73 0.154 OI | | | | 0.73 4.833 0.94 0.74 0.155 OI | | | | 0.74 4.917 0.95 0.74 0.156 OI | | | | 0.74 5.000 0.95 0.75 0.158 OI | | | | 0.75 5.083 0.95 0.76 0.159 OI | | | | 0.76 5.167 0.96 0.76 0.160 OI | | | | 0.76 5.250 0.96 0.77 0.162 OI | | | | 0.77 5.333 0.97 0.78 0.163 OI | | | | 0.78 5.417 0.97 0.78 0.164 OI | | | | 0.78 5.500 0.98 0.79 0.166 OI | | | | 0.79 5.583 0.98 0.80 0.167 OI | | | | 0.80 5.667 0.98 0.80 0.168 OI | | | | 0.80 5.750 0.99 0.81 0.169 OI | | | | 0.81 5.833 0.99 0.81 0.171 OI | | | | 0.81 5.917 1.00 0.82 0.172 OI | | | | 0.82 6.000 1.00 0.82 0.173 OI | | | | 0.82 6.083 1.01 0.83 0.174 OI | | | | 0.83 6.167 1.01 0.84 0.176 OI | | | | 0.84 6.250 1.02 0.84 0.177 OI | | | | 0.84 6.333 1.02 0.85 0.178 OI | | | | 0.85 6.417 1.03 0.85 0.179 OI | | | | 0.85 6.500 1.03 0.86 0.180 OI | | | | 0.86 6.583 1.04 0.86 0.182 OI | | | | 0.86 6.667 1.04 0.87 0.183 OI | | | | 0.87 6.750 1.05 0.88 0.184 OI | | | | 0.88 6.833 1.05 0.88 0.185 OI | | | | 0.88 6.917 1.06 0.89 0.186 OI | | | | 0.89 7.000 1.06 0.89 0.187 OI | | | | 0.89 7.083 1.07 0.90 0.189 OI | | | | 0.90 7.167 1.07 0.90 0.190 OI | | | | 0.90 7.250 1.08 0.91 0.191 OI | | | | 0.91 7.333 1.08 0.91 0.192 |O | | | | 0.91 7.417 1.09 0.92 0.193 |O | | | | 0.92 7.500 1.10 0.93 0.194 |O | | | | 0.93 7.583 1.10 0.93 0.196 |O | | | | 0.93 7.667 1.11 0.94 0.197 |O | | | | 0.94 7.750 1.11 0.94 0.198 |O | | | | 0.94 7.833 1.12 0.95 0.199 |O | | | | 0.95 7.917 1.13 0.95 0.200 |O | | | | 0.95 8.000 1.13 0.96 0.201 |O | | | | 0.96 8.083 1.14 0.97 0.203 |O | | | | 0.97 8.167 1.15 0.97 0.204 |O | | | | 0.97 8.250 1.15 0.98 0.205 |O | | | | 0.98 8.333 1.16 0.98 0.206 |O | | | | 0.98 8.417 1.17 0.99 0.208 |O | | | | 0.99 8.500 1.17 0.99 0.209 |O | | | | 0.99 8.583 1.18 1.00 0.210 |O | | | | 1.00 8.667 1.19 1.00 0.211 |O | | | | 1.00 8.750 1.19 1.00 0.213 |O | | | | 1.01 8.833 1.20 1.00 0.214 |O | | | | 1.01 8.917 1.21 1.00 0.215 |O | | | | 1.02 9.000 1.22 1.00 0.217 |O | | | | 1.02 9.083 1.23 1.00 0.218 |O | | | | 1.03 9.167 1.23 1.00 0.220 |O | | | | 1.03 9.250 1.24 1.00 0.222 |O | | | | 1.04 9.333 1.25 1.00 0.223 |O | | | | 1.04 9.417 1.26 1.00 0.225 |O | | | | 1.05 9.500 1.27 1.00 0.227 |O | | | | 1.05 9.583 1.28 1.00 0.229 |O | | | | 1.06 9.667 1.29 1.00 0.231 |O | | | | 1.07 9.750 1.30 1.00 0.233 |O | | | | 1.07 9.833 1.31 1.00 0.235 |O | | | | 1.08 9.917 1.31 1.00 0.237 |O | | | | 1.09 10.000 1.33 1.00 0.239 |O | | | | 1.09 10.083 1.33 1.00 0.241 |O | | | | 1.10 10.167 1.35 1.00 0.244 |O | | | | 1.11 10.250 1.36 1.00 0.246 |O | | | | 1.12 10.333 1.37 1.00 0.249 |O | | | | 1.12 10.417 1.38 1.00 0.251 |O | | | | 1.13 10.500 1.39 1.00 0.254 |O | | | | 1.14 10.583 1.40 1.00 0.257 |O | | | | 1.15 10.667 1.41 1.00 0.259 |O | | | | 1.16 10.750 1.42 1.00 0.262 |O | | | | 1.17 10.833 1.44 1.00 0.265 |O | | | | 1.18 10.917 1.45 1.00 0.268 |O | | | | 1.19 11.000 1.46 1.00 0.271 |O | | | | 1.20 11.083 1.48 1.00 0.275 |O | | | | 1.21 11.167 1.49 1.00 0.278 |O | | | | 1.22 11.250 1.50 1.00 0.281 |O | | | | 1.23 11.333 1.52 1.00 0.285 |O | | | | 1.24 11.417 1.53 1.00 0.289 |O | | | | 1.25 11.500 1.55 1.00 0.292 |O | | | | 1.27 11.583 1.56 1.00 0.296 |O | | | | 1.28 11.667 1.58 1.00 0.300 |O | | | | 1.29 11.750 1.60 1.00 0.304 |O | | | | 1.30 11.833 1.61 1.00 0.308 |O | | | | 1.32 11.917 1.63 1.00 0.312 |O | | | | 1.33 12.000 1.65 1.00 0.317 |O | | | | 1.34 12.083 1.70 1.00 0.322 |O | | | | 1.36 12.167 1.86 1.00 0.327 |OI | | | | 1.38 12.250 1.97 1.00 0.333 |OI | | | | 1.40 12.333 2.01 1.00 0.340 |OI | | | | 1.42 12.417 2.04 1.00 0.347 |OI | | | | 1.44 12.500 2.06 1.00 0.354 |OI | | | | 1.47 12.583 2.08 1.00 0.362 |OI | | | | 1.49 12.667 2.11 1.00 0.369 |OI | | | | 1.51 12.750 2.13 1.00 0.377 |OI | | | | 1.54 12.833 2.16 1.00 0.385 |OI | | | | 1.56 12.917 2.18 1.00 0.393 |OI | | | | 1.59 13.000 2.21 1.00 0.401 |OI | | | | 1.62 13.083 2.24 1.00 0.410 |OI | | | | 1.64 13.167 2.27 1.00 0.418 |OI | | | | 1.67 13.250 2.30 1.00 0.427 |OI | | | | 1.70 13.333 2.33 1.00 0.436 |OI | | | | 1.73 13.417 2.36 1.00 0.445 |OI | | | | 1.76 13.500 2.40 1.00 0.455 |OI | | | | 1.79 13.583 2.44 1.00 0.465 |OI | | | | 1.82 13.667 2.48 1.00 0.475 |OI | | | | 1.85 13.750 2.52 1.00 0.485 |OI | | | | 1.89 13.833 2.56 1.00 0.496 |OI | | | | 1.92 13.917 2.60 1.00 0.506 |OI | | | | 1.96 14.000 2.65 1.00 0.518 |OI | | | | 1.99 14.083 2.70 1.00 0.529 |OI | | | | 2.02 14.167 2.76 1.00 0.541 |O I | | | | 2.06 14.250 2.82 1.00 0.554 |O I | | | | 2.09 14.333 2.88 1.00 0.566 |O I | | | | 2.12 14.417 2.94 1.00 0.579 |O I | | | | 2.16 14.500 3.01 1.00 0.593 |O I | | | | 2.19 14.583 3.09 1.00 0.607 |O I | | | | 2.23 14.667 3.17 1.00 0.622 |O I | | | | 2.27 14.750 3.26 1.00 0.637 |O I | | | | 2.31 14.833 3.36 1.00 0.653 |O I | | | | 2.35 14.917 3.46 1.00 0.670 |O I | | | | 2.39 15.000 3.58 1.00 0.687 |O I | | | | 2.44 15.083 3.70 1.00 0.705 |O I | | | | 2.49 15.167 3.85 1.00 0.724 |O I | | | | 2.54 15.250 4.01 1.00 0.744 |O I | | | | 2.59 15.333 4.21 1.00 0.766 |O I | | | | 2.65 15.417 4.30 1.00 0.788 |O I | | | | 2.71 15.500 4.04 1.00 0.810 |O I | | | | 2.76 15.583 3.99 1.00 0.831 |O I | | | | 2.82 15.667 4.33 1.00 0.853 |O I | | | | 2.88 15.750 4.78 1.00 0.877 |O I | | | | 2.94 15.833 5.51 1.00 0.906 |O I | | | | 3.01 15.917 6.58 1.00 0.940 |O I| | | | 3.10 16.000 8.97 1.01 0.987 |O |I | | | 3.21 16.083 15.53 1.02 1.064 |O | I | | 3.39 16.167 29.24 1.03 1.211 |O | | | I 3.74 16.250 20.51 1.48 1.374 |O | | I | | 4.12 16.333 8.60 2.18 1.462 | O |I | | | 4.32 16.417 5.42 2.44 1.494 | O I | | | | 4.40 16.500 4.53 2.58 1.511 | O I | | | | 4.43 16.583 4.30 2.68 1.524 | O I | | | | 4.46 16.667 3.96 2.76 1.533 | OI | | | | 4.48 16.750 3.67 2.81 1.540 | OI | | | | 4.50 16.833 3.43 2.85 1.545 | O | | | | 4.51 16.917 3.23 2.88 1.549 | O | | | | 4.52 17.000 3.07 2.89 1.550 | O | | | | 4.52 17.083 2.92 2.90 1.551 | O | | | | 4.53 17.167 2.80 2.90 1.551 | O | | | | 4.52 17.250 2.69 2.89 1.550 | IO | | | | 4.52 17.333 2.59 2.88 1.548 | IO | | | | 4.52 17.417 2.50 2.86 1.546 | IO | | | | 4.51 17.500 2.43 2.84 1.543 | IO | | | | 4.51 17.583 2.35 2.81 1.540 | IO | | | | 4.50 17.667 2.29 2.79 1.537 | IO | | | | 4.49 17.750 2.23 2.76 1.534 | IO | | | | 4.49 17.833 2.17 2.73 1.530 | O | | | | 4.48 17.917 2.12 2.70 1.526 | O | | | | 4.47 18.000 2.07 2.66 1.522 | O | | | | 4.46 18.083 2.00 2.63 1.518 | O | | | | 4.45 18.167 1.81 2.59 1.513 |IO | | | | 4.44 18.250 1.68 2.55 1.507 |IO | | | | 4.43 18.333 1.63 2.50 1.501 |IO | | | | 4.41 18.417 1.59 2.45 1.495 |IO | | | | 4.40 18.500 1.56 2.40 1.489 |IO | | | | 4.39 18.583 1.53 2.36 1.484 |IO | | | | 4.37 18.667 1.50 2.31 1.478 |IO | | | | 4.36 18.750 1.47 2.27 1.472 |IO | | | | 4.35 18.833 1.45 2.22 1.467 |IO | | | | 4.33 18.917 1.42 2.18 1.462 |IO | | | | 4.32 19.000 1.40 2.14 1.457 |IO | | | | 4.31 19.083 1.37 2.10 1.452 |IO | | | | 4.30 19.167 1.35 2.06 1.447 |IO | | | | 4.29 19.250 1.33 2.02 1.442 |IO | | | | 4.28 19.333 1.31 1.98 1.437 |IO | | | | 4.27 19.417 1.29 1.95 1.433 |IO | | | | 4.26 19.500 1.27 1.91 1.428 |IO | | | | 4.25 19.583 1.26 1.88 1.424 |IO | | | | 4.24 19.667 1.24 1.84 1.420 |IO | | | | 4.23 19.750 1.22 1.81 1.416 |O | | | | 4.22 19.833 1.21 1.78 1.412 |O | | | | 4.21 19.917 1.19 1.75 1.408 |O | | | | 4.20 20.000 1.18 1.72 1.404 |O | | | | 4.19 20.083 1.16 1.69 1.400 |O | | | | 4.18 20.167 1.15 1.66 1.397 |O | | | | 4.17 20.250 1.14 1.63 1.393 |O | | | | 4.17 20.333 1.12 1.60 1.390 |O | | | | 4.16 20.417 1.11 1.58 1.387 |O | | | | 4.15 20.500 1.10 1.55 1.384 |O | | | | 4.14 20.583 1.09 1.53 1.380 |O | | | | 4.14 20.667 1.08 1.50 1.377 |O | | | | 4.13 20.750 1.07 1.48 1.375 |O | | | | 4.12 20.833 1.05 1.46 1.372 |O | | | | 4.12 20.917 1.04 1.43 1.369 |O | | | | 4.11 21.000 1.03 1.41 1.366 |O | | | | 4.11 21.083 1.02 1.39 1.364 |O | | | | 4.10 21.167 1.01 1.37 1.361 |O | | | | 4.09 21.250 1.01 1.35 1.359 |O | | | | 4.09 21.333 1.00 1.33 1.357 |O | | | | 4.08 21.417 0.99 1.32 1.354 |O | | | | 4.08 21.500 0.98 1.30 1.352 |O | | | | 4.07 21.583 0.97 1.28 1.350 |O | | | | 4.07 21.667 0.96 1.26 1.348 |O | | | | 4.06 21.750 0.95 1.25 1.346 |O | | | | 4.06 21.833 0.95 1.23 1.344 |O | | | | 4.05 21.917 0.94 1.22 1.342 |O | | | | 4.05 22.000 0.93 1.20 1.340 |O | | | | 4.05 22.083 0.92 1.19 1.338 |O | | | | 4.04 22.167 0.92 1.17 1.336 |O | | | | 4.04 22.250 0.91 1.16 1.335 IO | | | | 4.03 22.333 0.90 1.14 1.333 IO | | | | 4.03 22.417 0.89 1.13 1.331 IO | | | | 4.03 22.500 0.89 1.12 1.330 IO | | | | 4.02 22.583 0.88 1.10 1.328 IO | | | | 4.02 22.667 0.88 1.09 1.327 IO | | | | 4.01 22.750 0.87 1.08 1.325 IO | | | | 4.01 22.833 0.86 1.07 1.324 IO | | | | 4.01 22.917 0.86 1.06 1.322 IO | | | | 4.01 23.000 0.85 1.05 1.321 IO | | | | 4.00 23.083 0.85 1.04 1.320 IO | | | | 4.00 23.167 0.84 1.04 1.318 IO | | | | 4.00 23.250 0.83 1.04 1.317 IO | | | | 3.99 23.333 0.83 1.04 1.315 IO | | | | 3.99 23.417 0.82 1.04 1.314 IO | | | | 3.99 23.500 0.82 1.04 1.312 IO | | | | 3.98 23.583 0.81 1.04 1.311 IO | | | | 3.98 23.667 0.81 1.04 1.309 IO | | | | 3.97 23.750 0.80 1.04 1.308 IO | | | | 3.97 23.833 0.80 1.04 1.306 IO | | | | 3.97 23.917 0.79 1.04 1.304 IO | | | | 3.96 24.000 0.79 1.04 1.303 IO | | | | 3.96 24.083 0.70 1.04 1.301 IO | | | | 3.95 24.167 0.31 1.04 1.297 IO | | | | 3.95 24.250 0.06 1.04 1.291 IO | | | | 3.93 24.333 0.01 1.04 1.284 IO | | | | 3.91 24.417 0.00 1.04 1.277 IO | | | | 3.90 24.500 0.00 1.04 1.270 IO | | | | 3.88 24.583 0.00 1.03 1.263 IO | | | | 3.86 24.667 0.00 1.03 1.256 IO | | | | 3.85 24.750 0.00 1.03 1.249 IO | | | | 3.83 24.833 0.00 1.03 1.241 IO | | | | 3.81 24.917 0.00 1.03 1.234 IO | | | | 3.80 25.000 0.00 1.03 1.227 IO | | | | 3.78 25.083 0.00 1.03 1.220 IO | | | | 3.76 25.167 0.00 1.03 1.213 IO | | | | 3.75 25.250 0.00 1.03 1.206 IO | | | | 3.73 25.333 0.00 1.03 1.199 IO | | | | 3.71 25.417 0.00 1.03 1.192 IO | | | | 3.69 25.500 0.00 1.03 1.185 IO | | | | 3.68 25.583 0.00 1.03 1.178 IO | | | | 3.66 25.667 0.00 1.03 1.171 IO | | | | 3.64 25.750 0.00 1.03 1.163 IO | | | | 3.63 25.833 0.00 1.02 1.156 IO | | | | 3.61 25.917 0.00 1.02 1.149 IO | | | | 3.59 26.000 0.00 1.02 1.142 IO | | | | 3.58 26.083 0.00 1.02 1.135 IO | | | | 3.56 26.167 0.00 1.02 1.128 IO | | | | 3.54 26.250 0.00 1.02 1.121 IO | | | | 3.53 26.333 0.00 1.02 1.114 IO | | | | 3.51 26.417 0.00 1.02 1.107 IO | | | | 3.49 26.500 0.00 1.02 1.100 IO | | | | 3.48 26.583 0.00 1.02 1.093 IO | | | | 3.46 26.667 0.00 1.02 1.086 IO | | | | 3.44 26.750 0.00 1.02 1.079 IO | | | | 3.43 26.833 0.00 1.02 1.072 IO | | | | 3.41 26.917 0.00 1.02 1.065 IO | | | | 3.39 27.000 0.00 1.02 1.058 IO | | | | 3.38 27.083 0.00 1.01 1.051 IO | | | | 3.36 27.167 0.00 1.01 1.044 IO | | | | 3.34 27.250 0.00 1.01 1.037 IO | | | | 3.33 27.333 0.00 1.01 1.030 IO | | | | 3.31 27.417 0.00 1.01 1.023 IO | | | | 3.29 27.500 0.00 1.01 1.016 IO | | | | 3.28 27.583 0.00 1.01 1.009 IO | | | | 3.26 27.667 0.00 1.01 1.002 IO | | | | 3.24 27.750 0.00 1.01 0.995 IO | | | | 3.23 27.833 0.00 1.01 0.988 IO | | | | 3.21 27.917 0.00 1.01 0.981 IO | | | | 3.19 28.000 0.00 1.01 0.975 IO | | | | 3.18 28.083 0.00 1.01 0.968 IO | | | | 3.16 28.167 0.00 1.01 0.961 IO | | | | 3.14 28.250 0.00 1.01 0.954 IO | | | | 3.13 28.333 0.00 1.00 0.947 IO | | | | 3.11 28.417 0.00 1.00 0.940 IO | | | | 3.10 28.500 0.00 1.00 0.933 IO | | | | 3.08 28.583 0.00 1.00 0.926 IO | | | | 3.06 28.667 0.00 1.00 0.919 IO | | | | 3.05 28.750 0.00 1.00 0.912 IO | | | | 3.03 28.833 0.00 1.00 0.905 IO | | | | 3.01 28.917 0.00 1.00 0.899 IO | | | | 3.00 29.000 0.00 1.00 0.892 IO | | | | 2.98 29.083 0.00 1.00 0.885 IO | | | | 2.96 29.167 0.00 1.00 0.878 IO | | | | 2.94 29.250 0.00 1.00 0.871 IO | | | | 2.92 29.333 0.00 1.00 0.864 IO | | | | 2.91 29.417 0.00 1.00 0.857 IO | | | | 2.89 29.500 0.00 1.00 0.850 IO | | | | 2.87 29.583 0.00 1.00 0.843 IO | | | | 2.85 29.667 0.00 1.00 0.837 IO | | | | 2.83 29.750 0.00 1.00 0.830 IO | | | | 2.81 29.833 0.00 1.00 0.823 IO | | | | 2.80 29.917 0.00 1.00 0.816 IO | | | | 2.78 30.000 0.00 1.00 0.809 IO | | | | 2.76 30.083 0.00 1.00 0.802 IO | | | | 2.74 30.167 0.00 1.00 0.795 IO | | | | 2.72 30.250 0.00 1.00 0.788 IO | | | | 2.71 30.333 0.00 1.00 0.781 IO | | | | 2.69 30.417 0.00 1.00 0.775 IO | | | | 2.67 30.500 0.00 1.00 0.768 IO | | | | 2.65 30.583 0.00 1.00 0.761 IO | | | | 2.63 30.667 0.00 1.00 0.754 IO | | | | 2.62 30.750 0.00 1.00 0.747 IO | | | | 2.60 30.833 0.00 1.00 0.740 IO | | | | 2.58 30.917 0.00 1.00 0.733 IO | | | | 2.56 31.000 0.00 1.00 0.726 IO | | | | 2.54 31.083 0.00 1.00 0.719 IO | | | | 2.52 31.167 0.00 1.00 0.713 IO | | | | 2.51 31.250 0.00 1.00 0.706 IO | | | | 2.49 31.333 0.00 1.00 0.699 IO | | | | 2.47 31.417 0.00 1.00 0.692 IO | | | | 2.45 31.500 0.00 1.00 0.685 IO | | | | 2.43 31.583 0.00 1.00 0.678 IO | | | | 2.42 31.667 0.00 1.00 0.671 IO | | | | 2.40 31.750 0.00 1.00 0.664 IO | | | | 2.38 31.833 0.00 1.00 0.657 IO | | | | 2.36 31.917 0.00 1.00 0.651 IO | | | | 2.34 32.000 0.00 1.00 0.644 IO | | | | 2.33 32.083 0.00 1.00 0.637 IO | | | | 2.31 32.167 0.00 1.00 0.630 IO | | | | 2.29 32.250 0.00 1.00 0.623 IO | | | | 2.27 32.333 0.00 1.00 0.616 IO | | | | 2.25 32.417 0.00 1.00 0.609 IO | | | | 2.23 32.500 0.00 1.00 0.602 IO | | | | 2.22 32.583 0.00 1.00 0.596 IO | | | | 2.20 32.667 0.00 1.00 0.589 IO | | | | 2.18 32.750 0.00 1.00 0.582 IO | | | | 2.16 32.833 0.00 1.00 0.575 IO | | | | 2.14 32.917 0.00 1.00 0.568 IO | | | | 2.13 33.000 0.00 1.00 0.561 IO | | | | 2.11 33.083 0.00 1.00 0.554 IO | | | | 2.09 33.167 0.00 1.00 0.547 IO | | | | 2.07 33.250 0.00 1.00 0.540 IO | | | | 2.05 33.333 0.00 1.00 0.534 IO | | | | 2.04 33.417 0.00 1.00 0.527 IO | | | | 2.02 33.500 0.00 1.00 0.520 IO | | | | 2.00 33.583 0.00 1.00 0.513 IO | | | | 1.98 33.667 0.00 1.00 0.506 IO | | | | 1.95 33.750 0.00 1.00 0.499 IO | | | | 1.93 33.833 0.00 1.00 0.492 IO | | | | 1.91 33.917 0.00 1.00 0.485 IO | | | | 1.89 34.000 0.00 1.00 0.478 IO | | | | 1.87 34.083 0.00 1.00 0.472 IO | | | | 1.84 34.167 0.00 1.00 0.465 IO | | | | 1.82 34.250 0.00 1.00 0.458 IO | | | | 1.80 34.333 0.00 1.00 0.451 IO | | | | 1.78 34.417 0.00 1.00 0.444 IO | | | | 1.75 34.500 0.00 1.00 0.437 IO | | | | 1.73 34.583 0.00 1.00 0.430 IO | | | | 1.71 34.667 0.00 1.00 0.423 IO | | | | 1.69 34.750 0.00 1.00 0.416 IO | | | | 1.67 34.833 0.00 1.00 0.410 IO | | | | 1.64 34.917 0.00 1.00 0.403 IO | | | | 1.62 35.000 0.00 1.00 0.396 IO | | | | 1.60 35.083 0.00 1.00 0.389 IO | | | | 1.58 35.167 0.00 1.00 0.382 IO | | | | 1.55 35.250 0.00 1.00 0.375 IO | | | | 1.53 35.333 0.00 1.00 0.368 IO | | | | 1.51 35.417 0.00 1.00 0.361 IO | | | | 1.49 35.500 0.00 1.00 0.354 IO | | | | 1.47 35.583 0.00 1.00 0.348 IO | | | | 1.44 35.667 0.00 1.00 0.341 IO | | | | 1.42 35.750 0.00 1.00 0.334 IO | | | | 1.40 35.833 0.00 1.00 0.327 IO | | | | 1.38 35.917 0.00 1.00 0.320 IO | | | | 1.35 36.000 0.00 1.00 0.313 IO | | | | 1.33 36.083 0.00 1.00 0.306 IO | | | | 1.31 36.167 0.00 1.00 0.299 IO | | | | 1.29 36.250 0.00 1.00 0.292 IO | | | | 1.27 36.333 0.00 1.00 0.286 IO | | | | 1.24 36.417 0.00 1.00 0.279 IO | | | | 1.22 36.500 0.00 1.00 0.272 IO | | | | 1.20 36.583 0.00 1.00 0.265 IO | | | | 1.18 36.667 0.00 1.00 0.258 IO | | | | 1.15 36.750 0.00 1.00 0.251 IO | | | | 1.13 36.833 0.00 1.00 0.244 IO | | | | 1.11 36.917 0.00 1.00 0.237 IO | | | | 1.09 37.000 0.00 1.00 0.230 IO | | | | 1.07 37.083 0.00 1.00 0.224 IO | | | | 1.04 37.167 0.00 1.00 0.217 IO | | | | 1.02 37.250 0.00 1.00 0.210 IO | | | | 1.00 37.333 0.00 0.97 0.203 IO | | | | 0.97 37.417 0.00 0.94 0.197 IO | | | | 0.94 37.500 0.00 0.91 0.190 O | | | | 0.91 37.583 0.00 0.88 0.184 O | | | | 0.88 37.667 0.00 0.85 0.178 O | | | | 0.85 37.750 0.00 0.82 0.172 O | | | | 0.82 37.833 0.00 0.79 0.167 O | | | | 0.79 37.917 0.00 0.77 0.161 O | | | | 0.77 38.000 0.00 0.74 0.156 O | | | | 0.74 38.083 0.00 0.72 0.151 O | | | | 0.72 38.167 0.00 0.70 0.146 O | | | | 0.70 38.250 0.00 0.67 0.142 O | | | | 0.67 38.333 0.00 0.65 0.137 O | | | | 0.65 38.417 0.00 0.63 0.133 O | | | | 0.63 38.500 0.00 0.61 0.128 O | | | | 0.61 38.583 0.00 0.59 0.124 O | | | | 0.59 38.667 0.00 0.57 0.120 O | | | | 0.57 38.750 0.00 0.55 0.116 O | | | | 0.55 38.833 0.00 0.54 0.113 O | | | | 0.54 38.917 0.00 0.52 0.109 O | | | | 0.52 39.000 0.00 0.50 0.105 O | | | | 0.50 39.083 0.00 0.49 0.102 O | | | | 0.49 39.167 0.00 0.47 0.099 O | | | | 0.47 39.250 0.00 0.45 0.096 O | | | | 0.45 39.333 0.00 0.44 0.092 O | | | | 0.44 39.417 0.00 0.43 0.089 O | | | | 0.43 39.500 0.00 0.41 0.087 O | | | | 0.41 39.583 0.00 0.40 0.084 O | | | | 0.40 39.667 0.00 0.39 0.081 O | | | | 0.39 39.750 0.00 0.37 0.078 O | | | | 0.37 39.833 0.00 0.36 0.076 O | | | | 0.36 39.917 0.00 0.35 0.073 O | | | | 0.35 40.000 0.00 0.34 0.071 O | | | | 0.34 40.083 0.00 0.33 0.069 O | | | | 0.33 40.167 0.00 0.32 0.067 O | | | | 0.32 40.250 0.00 0.31 0.064 O | | | | 0.31 40.333 0.00 0.30 0.062 O | | | | 0.30 40.417 0.00 0.29 0.060 O | | | | 0.29 40.500 0.00 0.28 0.058 O | | | | 0.28 40.583 0.00 0.27 0.057 O | | | | 0.27 40.667 0.00 0.26 0.055 O | | | | 0.26 40.750 0.00 0.25 0.053 O | | | | 0.25 40.833 0.00 0.24 0.051 O | | | | 0.24 40.917 0.00 0.24 0.050 O | | | | 0.24 41.000 0.00 0.23 0.048 O | | | | 0.23 41.083 0.00 0.22 0.046 O | | | | 0.22 41.167 0.00 0.21 0.045 O | | | | 0.21 41.250 0.00 0.21 0.043 O | | | | 0.21 41.333 0.00 0.20 0.042 O | | | | 0.20 41.417 0.00 0.19 0.041 O | | | | 0.19 41.500 0.00 0.19 0.039 O | | | | 0.19 41.583 0.00 0.18 0.038 O | | | | 0.18 41.667 0.00 0.18 0.037 O | | | | 0.18 41.750 0.00 0.17 0.036 O | | | | 0.17 41.833 0.00 0.16 0.035 O | | | | 0.16 41.917 0.00 0.16 0.033 O | | | | 0.16 42.000 0.00 0.15 0.032 O | | | | 0.15 42.083 0.00 0.15 0.031 O | | | | 0.15 42.167 0.00 0.14 0.030 O | | | | 0.14 42.250 0.00 0.14 0.029 O | | | | 0.14 42.333 0.00 0.14 0.028 O | | | | 0.14 42.417 0.00 0.13 0.027 O | | | | 0.13 42.500 0.00 0.13 0.027 O | | | | 0.13 42.583 0.00 0.12 0.026 O | | | | 0.12 42.667 0.00 0.12 0.025 O | | | | 0.12 42.750 0.00 0.11 0.024 O | | | | 0.11 42.833 0.00 0.11 0.023 O | | | | 0.11 42.917 0.00 0.11 0.023 O | | | | 0.11 43.000 0.00 0.10 0.022 O | | | | 0.10 43.083 0.00 0.10 0.021 O | | | | 0.10 43.167 0.00 0.10 0.020 O | | | | 0.10 43.250 0.00 0.09 0.020 O | | | | 0.09 43.333 0.00 0.09 0.019 O | | | | 0.09 43.417 0.00 0.09 0.019 O | | | | 0.09 43.500 0.00 0.09 0.018 O | | | | 0.09 43.583 0.00 0.08 0.017 O | | | | 0.08 43.667 0.00 0.08 0.017 O | | | | 0.08 43.750 0.00 0.08 0.016 O | | | | 0.08 43.833 0.00 0.07 0.016 O | | | | 0.07 43.917 0.00 0.07 0.015 O | | | | 0.07 44.000 0.00 0.07 0.015 O | | | | 0.07 44.083 0.00 0.07 0.014 O | | | | 0.07 44.167 0.00 0.07 0.014 O | | | | 0.07 44.250 0.00 0.06 0.013 O | | | | 0.06 44.333 0.00 0.06 0.013 O | | | | 0.06 44.417 0.00 0.06 0.012 O | | | | 0.06 44.500 0.00 0.06 0.012 O | | | | 0.06 44.583 0.00 0.06 0.012 O | | | | 0.06 44.667 0.00 0.05 0.011 O | | | | 0.05 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.05 0.011 O | | | | 0.05 44.833 0.00 0.05 0.011 O | | | | 0.05 44.917 0.00 0.05 0.010 O | | | | 0.05 45.000 0.00 0.05 0.010 O | | | | 0.05 45.083 0.00 0.05 0.010 O | | | | 0.05 45.167 0.00 0.04 0.009 O | | | | 0.04 45.250 0.00 0.04 0.009 O | | | | 0.04 45.333 0.00 0.04 0.009 O | | | | 0.04 45.417 0.00 0.04 0.008 O | | | | 0.04 45.500 0.00 0.04 0.008 O | | | | 0.04 45.583 0.00 0.04 0.008 O | | | | 0.04 45.667 0.00 0.04 0.008 O | | | | 0.04 45.750 0.00 0.04 0.007 O | | | | 0.04 45.833 0.00 0.03 0.007 O | | | | 0.03 45.917 0.00 0.03 0.007 O | | | | 0.03 46.000 0.00 0.03 0.007 O | | | | 0.03 46.083 0.00 0.03 0.006 O | | | | 0.03 46.167 0.00 0.03 0.006 O | | | | 0.03 46.250 0.00 0.03 0.006 O | | | | 0.03 46.333 0.00 0.03 0.006 O | | | | 0.03 46.417 0.00 0.03 0.006 O | | | | 0.03 46.500 0.00 0.03 0.006 O | | | | 0.03 46.583 0.00 0.03 0.005 O | | | | 0.03 46.667 0.00 0.02 0.005 O | | | | 0.02 46.750 0.00 0.02 0.005 O | | | | 0.02 46.833 0.00 0.02 0.005 O | | | | 0.02 46.917 0.00 0.02 0.005 O | | | | 0.02 47.000 0.00 0.02 0.005 O | | | | 0.02 47.083 0.00 0.02 0.004 O | | | | 0.02 47.167 0.00 0.02 0.004 O | | | | 0.02 47.250 0.00 0.02 0.004 O | | | | 0.02 47.333 0.00 0.02 0.004 O | | | | 0.02 47.417 0.00 0.02 0.004 O | | | | 0.02 47.500 0.00 0.02 0.004 O | | | | 0.02 47.583 0.00 0.02 0.003 O | | | | 0.02 47.667 0.00 0.02 0.003 O | | | | 0.02 47.750 0.00 0.02 0.002 O | | | | 0.02 47.833 0.00 0.02 0.002 O | | | | 0.01 47.917 0.00 0.01 0.001 O | | | | 0.01 48.000 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 576 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 2.899 (CFS) Total volume = 3.558 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.7 BASIN ROUTING ANALYSIS DRAINAGE AREA B– 25 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/25/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 25 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER B -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH25POSTB.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 36.692 (CFS) Total volume = 4.318 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.210 1.000 0.207 0.213 2.000 0.520 1.000 0.517 0.523 3.000 0.900 1.000 0.897 0.903 4.000 1.320 1.040 1.316 1.324 5.000 1.760 4.580 1.744 1.776 6.000 2.190 6.510 2.168 2.212 7.000 2.610 7.980 2.583 2.637 8.000 2.900 9.220 2.868 2.932 9.000 3.310 10.320 3.274 3.346 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 9.2 18.35 27.52 36.69 (Ft.) 0.083 0.10 0.00 0.000 O | | | | 0.00 0.167 0.57 0.01 0.003 O | | | | 0.01 0.250 0.87 0.04 0.007 O | | | | 0.04 0.333 0.93 0.06 0.013 O | | | | 0.06 0.417 0.95 0.09 0.019 O | | | | 0.09 0.500 0.95 0.12 0.025 O | | | | 0.12 0.583 0.95 0.15 0.031 O | | | | 0.15 0.667 0.96 0.17 0.036 O | | | | 0.17 0.750 0.96 0.20 0.041 O | | | | 0.20 0.833 0.96 0.22 0.047 O | | | | 0.22 0.917 0.96 0.25 0.052 O | | | | 0.25 1.000 0.97 0.27 0.057 O | | | | 0.27 1.083 0.97 0.29 0.061 O | | | | 0.29 1.167 0.97 0.31 0.066 O | | | | 0.31 1.250 0.98 0.33 0.070 O | | | | 0.33 1.333 0.98 0.36 0.075 O | | | | 0.36 1.417 0.98 0.38 0.079 O | | | | 0.38 1.500 0.99 0.40 0.083 O | | | | 0.40 1.583 0.99 0.41 0.087 O | | | | 0.41 1.667 0.99 0.43 0.091 O | | | | 0.43 1.750 0.99 0.45 0.095 O | | | | 0.45 1.833 1.00 0.47 0.098 O | | | | 0.47 1.917 1.00 0.49 0.102 O | | | | 0.49 2.000 1.00 0.50 0.106 O | | | | 0.50 2.083 1.01 0.52 0.109 O | | | | 0.52 2.167 1.01 0.53 0.112 O | | | | 0.53 2.250 1.01 0.55 0.116 O | | | | 0.55 2.333 1.02 0.57 0.119 O | | | | 0.57 2.417 1.02 0.58 0.122 O | | | | 0.58 2.500 1.03 0.59 0.125 O | | | | 0.59 2.583 1.03 0.61 0.128 O | | | | 0.61 2.667 1.03 0.62 0.131 O | | | | 0.62 2.750 1.04 0.63 0.133 O | | | | 0.63 2.833 1.04 0.65 0.136 O | | | | 0.65 2.917 1.04 0.66 0.139 O | | | | 0.66 3.000 1.05 0.67 0.141 O | | | | 0.67 3.083 1.05 0.69 0.144 O | | | | 0.69 3.167 1.05 0.70 0.146 O | | | | 0.70 3.250 1.06 0.71 0.149 O | | | | 0.71 3.333 1.06 0.72 0.151 O | | | | 0.72 3.417 1.07 0.73 0.154 O | | | | 0.73 3.500 1.07 0.74 0.156 O | | | | 0.74 3.583 1.07 0.75 0.158 O | | | | 0.75 3.667 1.08 0.76 0.160 O | | | | 0.76 3.750 1.08 0.77 0.162 O | | | | 0.77 3.833 1.09 0.78 0.164 O | | | | 0.78 3.917 1.09 0.79 0.167 O | | | | 0.79 4.000 1.09 0.80 0.169 O | | | | 0.80 4.083 1.10 0.81 0.171 O | | | | 0.81 4.167 1.10 0.82 0.173 O | | | | 0.82 4.250 1.11 0.83 0.174 O | | | | 0.83 4.333 1.11 0.84 0.176 O | | | | 0.84 4.417 1.12 0.85 0.178 O | | | | 0.85 4.500 1.12 0.86 0.180 O | | | | 0.86 4.583 1.12 0.87 0.182 O | | | | 0.87 4.667 1.13 0.87 0.184 O | | | | 0.87 4.750 1.13 0.88 0.185 O | | | | 0.88 4.833 1.14 0.89 0.187 O | | | | 0.89 4.917 1.14 0.90 0.189 O | | | | 0.90 5.000 1.15 0.91 0.190 OI | | | | 0.91 5.083 1.15 0.91 0.192 OI | | | | 0.91 5.167 1.16 0.92 0.194 OI | | | | 0.92 5.250 1.16 0.93 0.195 OI | | | | 0.93 5.333 1.17 0.94 0.197 OI | | | | 0.94 5.417 1.17 0.95 0.198 OI | | | | 0.95 5.500 1.18 0.95 0.200 OI | | | | 0.95 5.583 1.18 0.96 0.202 OI | | | | 0.96 5.667 1.19 0.97 0.203 OI | | | | 0.97 5.750 1.19 0.97 0.205 OI | | | | 0.97 5.833 1.20 0.98 0.206 OI | | | | 0.98 5.917 1.20 0.99 0.208 OI | | | | 0.99 6.000 1.21 1.00 0.209 OI | | | | 1.00 6.083 1.22 1.00 0.211 OI | | | | 1.00 6.167 1.22 1.00 0.212 OI | | | | 1.01 6.250 1.23 1.00 0.214 OI | | | | 1.01 6.333 1.23 1.00 0.215 OI | | | | 1.02 6.417 1.24 1.00 0.217 OI | | | | 1.02 6.500 1.25 1.00 0.219 OI | | | | 1.03 6.583 1.25 1.00 0.220 OI | | | | 1.03 6.667 1.26 1.00 0.222 OI | | | | 1.04 6.750 1.26 1.00 0.224 OI | | | | 1.04 6.833 1.27 1.00 0.226 OI | | | | 1.05 6.917 1.28 1.00 0.227 OI | | | | 1.06 7.000 1.28 1.00 0.229 OI | | | | 1.06 7.083 1.29 1.00 0.231 OI | | | | 1.07 7.167 1.30 1.00 0.233 OI | | | | 1.08 7.250 1.30 1.00 0.235 OI | | | | 1.08 7.333 1.31 1.00 0.238 OI | | | | 1.09 7.417 1.32 1.00 0.240 OI | | | | 1.10 7.500 1.32 1.00 0.242 OI | | | | 1.10 7.583 1.33 1.00 0.244 OI | | | | 1.11 7.667 1.34 1.00 0.246 OI | | | | 1.12 7.750 1.35 1.00 0.249 OI | | | | 1.13 7.833 1.35 1.00 0.251 OI | | | | 1.13 7.917 1.36 1.00 0.254 OI | | | | 1.14 8.000 1.37 1.00 0.256 OI | | | | 1.15 8.083 1.38 1.00 0.259 OI | | | | 1.16 8.167 1.38 1.00 0.261 OI | | | | 1.17 8.250 1.39 1.00 0.264 OI | | | | 1.17 8.333 1.40 1.00 0.267 OI | | | | 1.18 8.417 1.41 1.00 0.270 OI | | | | 1.19 8.500 1.42 1.00 0.272 OI | | | | 1.20 8.583 1.43 1.00 0.275 OI | | | | 1.21 8.667 1.44 1.00 0.278 OI | | | | 1.22 8.750 1.44 1.00 0.281 OI | | | | 1.23 8.833 1.45 1.00 0.284 OI | | | | 1.24 8.917 1.46 1.00 0.288 OI | | | | 1.25 9.000 1.47 1.00 0.291 OI | | | | 1.26 9.083 1.48 1.00 0.294 OI | | | | 1.27 9.167 1.49 1.00 0.297 OI | | | | 1.28 9.250 1.50 1.00 0.301 OI | | | | 1.29 9.333 1.51 1.00 0.304 OI | | | | 1.30 9.417 1.52 1.00 0.308 OI | | | | 1.32 9.500 1.53 1.00 0.312 OI | | | | 1.33 9.583 1.54 1.00 0.315 OI | | | | 1.34 9.667 1.56 1.00 0.319 OI | | | | 1.35 9.750 1.57 1.00 0.323 OI | | | | 1.36 9.833 1.58 1.00 0.327 OI | | | | 1.38 9.917 1.59 1.00 0.331 OI | | | | 1.39 10.000 1.60 1.00 0.335 OI | | | | 1.40 10.083 1.61 1.00 0.339 OI | | | | 1.42 10.167 1.63 1.00 0.343 OI | | | | 1.43 10.250 1.64 1.00 0.348 OI | | | | 1.44 10.333 1.65 1.00 0.352 OI | | | | 1.46 10.417 1.67 1.00 0.357 OI | | | | 1.47 10.500 1.68 1.00 0.361 OI | | | | 1.49 10.583 1.69 1.00 0.366 OI | | | | 1.50 10.667 1.71 1.00 0.371 OI | | | | 1.52 10.750 1.72 1.00 0.376 OI | | | | 1.54 10.833 1.74 1.00 0.381 OI | | | | 1.55 10.917 1.75 1.00 0.386 OI | | | | 1.57 11.000 1.77 1.00 0.391 OI | | | | 1.58 11.083 1.78 1.00 0.397 OI | | | | 1.60 11.167 1.80 1.00 0.402 OI | | | | 1.62 11.250 1.82 1.00 0.408 OI | | | | 1.64 11.333 1.84 1.00 0.413 OI | | | | 1.66 11.417 1.85 1.00 0.419 OI | | | | 1.67 11.500 1.87 1.00 0.425 OI | | | | 1.69 11.583 1.89 1.00 0.431 OI | | | | 1.71 11.667 1.91 1.00 0.437 OI | | | | 1.73 11.750 1.93 1.00 0.444 OI | | | | 1.75 11.833 1.95 1.00 0.450 OI | | | | 1.78 11.917 1.97 1.00 0.457 OI | | | | 1.80 12.000 2.00 1.00 0.464 OI | | | | 1.82 12.083 2.05 1.00 0.471 OI | | | | 1.84 12.167 2.21 1.00 0.478 OI | | | | 1.87 12.250 2.33 1.00 0.487 O I | | | | 1.89 12.333 2.37 1.00 0.497 O I | | | | 1.92 12.417 2.40 1.00 0.506 O I | | | | 1.95 12.500 2.43 1.00 0.516 O I | | | | 1.99 12.583 2.45 1.00 0.526 O I | | | | 2.01 12.667 2.48 1.00 0.536 O I | | | | 2.04 12.750 2.51 1.00 0.546 O I | | | | 2.07 12.833 2.54 1.00 0.557 O I | | | | 2.10 12.917 2.58 1.00 0.567 O I | | | | 2.12 13.000 2.61 1.00 0.578 O I | | | | 2.15 13.083 2.64 1.00 0.590 O I | | | | 2.18 13.167 2.68 1.00 0.601 O I | | | | 2.21 13.250 2.72 1.00 0.613 O I | | | | 2.24 13.333 2.76 1.00 0.625 O I | | | | 2.28 13.417 2.80 1.00 0.637 O I | | | | 2.31 13.500 2.84 1.00 0.649 O I | | | | 2.34 13.583 2.89 1.00 0.662 O I | | | | 2.37 13.667 2.94 1.00 0.676 O I | | | | 2.41 13.750 2.99 1.00 0.689 O I | | | | 2.44 13.833 3.04 1.00 0.703 O I | | | | 2.48 13.917 3.09 1.00 0.717 O I | | | | 2.52 14.000 3.16 1.00 0.732 O I | | | | 2.56 14.083 3.22 1.00 0.747 O I | | | | 2.60 14.167 3.29 1.00 0.762 O I | | | | 2.64 14.250 3.35 1.00 0.778 O I | | | | 2.68 14.333 3.43 1.00 0.795 O I | | | | 2.72 14.417 3.51 1.00 0.812 O I | | | | 2.77 14.500 3.60 1.00 0.829 O I | | | | 2.81 14.583 3.69 1.00 0.848 O I | | | | 2.86 14.667 3.79 1.00 0.866 O I | | | | 2.91 14.750 3.90 1.00 0.886 O I | | | | 2.96 14.833 4.02 1.00 0.906 O I | | | | 3.02 14.917 4.15 1.00 0.928 O I | | | | 3.07 15.000 4.30 1.00 0.950 O I | | | | 3.12 15.083 4.45 1.01 0.973 O I | | | | 3.17 15.167 4.64 1.01 0.997 O I | | | | 3.23 15.250 4.84 1.01 1.023 O I | | | | 3.29 15.333 5.08 1.01 1.050 O I | | | | 3.36 15.417 5.22 1.02 1.079 O I | | | | 3.43 15.500 4.99 1.02 1.107 O I | | | | 3.49 15.583 4.99 1.02 1.134 O I | | | | 3.56 15.667 5.42 1.03 1.163 O I | | | | 3.63 15.750 6.00 1.03 1.195 O I | | | | 3.70 15.833 6.93 1.03 1.233 O I | | | | 3.79 15.917 8.36 1.04 1.278 O I| | | | 3.90 16.000 11.40 1.19 1.339 |O |I | | | 4.04 16.083 19.62 1.96 1.435 |O | |I | | 4.26 16.167 36.69 3.37 1.610 | O | | | I 4.66 16.250 25.49 4.74 1.796 | O | | I | | 5.08 16.333 10.69 5.15 1.887 | O |I | | | 5.29 16.417 6.74 5.26 1.911 | OI | | | | 5.35 16.500 5.56 5.28 1.917 | O | | | | 5.37 16.583 5.21 5.29 1.918 | O | | | | 5.37 16.667 4.77 5.28 1.916 | O | | | | 5.36 16.750 4.41 5.26 1.911 | IO | | | | 5.35 16.833 4.11 5.23 1.904 | IO | | | | 5.34 16.917 3.87 5.19 1.896 | IO | | | | 5.32 17.000 3.66 5.15 1.886 | IO | | | | 5.29 17.083 3.48 5.10 1.876 | IO | | | | 5.27 17.167 3.33 5.05 1.864 | I O | | | | 5.24 17.250 3.20 4.99 1.852 | I O | | | | 5.21 17.333 3.08 4.94 1.839 | I O | | | | 5.18 17.417 2.97 4.88 1.826 | I O | | | | 5.15 17.500 2.87 4.82 1.813 | I O | | | | 5.12 17.583 2.79 4.76 1.800 | I O | | | | 5.09 17.667 2.71 4.70 1.786 | I O | | | | 5.06 17.750 2.63 4.63 1.772 | I O | | | | 5.03 17.833 2.56 4.57 1.758 | IO | | | | 5.00 17.917 2.50 4.46 1.745 | IO | | | | 4.97 18.000 2.44 4.35 1.732 | IO | | | | 4.94 18.083 2.36 4.25 1.718 | IO | | | | 4.91 18.167 2.17 4.14 1.705 |I O | | | | 4.88 18.250 2.03 4.03 1.691 |I O | | | | 4.84 18.333 1.97 3.92 1.678 |I O | | | | 4.81 18.417 1.92 3.81 1.665 |I O | | | | 4.78 18.500 1.88 3.71 1.652 |I O | | | | 4.75 18.583 1.85 3.61 1.640 |I O | | | | 4.73 18.667 1.81 3.51 1.628 |I O | | | | 4.70 18.750 1.78 3.42 1.616 |IO | | | | 4.67 18.833 1.75 3.33 1.605 |IO | | | | 4.65 18.917 1.72 3.25 1.594 |IO | | | | 4.62 19.000 1.69 3.16 1.584 |IO | | | | 4.60 19.083 1.66 3.08 1.574 |IO | | | | 4.58 19.167 1.63 3.01 1.564 |IO | | | | 4.56 19.250 1.61 2.93 1.555 |IO | | | | 4.53 19.333 1.59 2.86 1.546 |IO | | | | 4.51 19.417 1.56 2.79 1.537 |IO | | | | 4.49 19.500 1.54 2.72 1.529 |IO | | | | 4.48 19.583 1.52 2.66 1.521 |IO | | | | 4.46 19.667 1.50 2.60 1.513 |IO | | | | 4.44 19.750 1.48 2.54 1.506 |IO | | | | 4.42 19.833 1.46 2.48 1.499 |IO | | | | 4.41 19.917 1.44 2.42 1.492 |IO | | | | 4.39 20.000 1.42 2.37 1.485 |IO | | | | 4.38 20.083 1.41 2.32 1.479 |IO | | | | 4.36 20.167 1.39 2.27 1.473 |O | | | | 4.35 20.250 1.37 2.22 1.467 |O | | | | 4.33 20.333 1.36 2.18 1.461 |O | | | | 4.32 20.417 1.34 2.13 1.456 |O | | | | 4.31 20.500 1.33 2.09 1.450 |O | | | | 4.30 20.583 1.31 2.05 1.445 |O | | | | 4.28 20.667 1.30 2.01 1.440 |O | | | | 4.27 20.750 1.29 1.97 1.435 |O | | | | 4.26 20.833 1.27 1.93 1.431 |O | | | | 4.25 20.917 1.26 1.90 1.426 |O | | | | 4.24 21.000 1.25 1.86 1.422 |O | | | | 4.23 21.083 1.24 1.83 1.418 |O | | | | 4.22 21.167 1.23 1.80 1.414 |O | | | | 4.21 21.250 1.21 1.76 1.410 |O | | | | 4.20 21.333 1.20 1.73 1.406 |O | | | | 4.20 21.417 1.19 1.71 1.403 |O | | | | 4.19 21.500 1.18 1.68 1.399 |O | | | | 4.18 21.583 1.17 1.65 1.396 |O | | | | 4.17 21.667 1.16 1.62 1.393 |O | | | | 4.17 21.750 1.15 1.60 1.389 |O | | | | 4.16 21.833 1.14 1.57 1.386 IO | | | | 4.15 21.917 1.13 1.55 1.384 IO | | | | 4.14 22.000 1.12 1.53 1.381 IO | | | | 4.14 22.083 1.11 1.51 1.378 IO | | | | 4.13 22.167 1.11 1.48 1.375 IO | | | | 4.13 22.250 1.10 1.46 1.373 IO | | | | 4.12 22.333 1.09 1.44 1.370 IO | | | | 4.11 22.417 1.08 1.42 1.368 IO | | | | 4.11 22.500 1.07 1.41 1.365 IO | | | | 4.10 22.583 1.06 1.39 1.363 IO | | | | 4.10 22.667 1.06 1.37 1.361 IO | | | | 4.09 22.750 1.05 1.35 1.359 IO | | | | 4.09 22.833 1.04 1.34 1.357 IO | | | | 4.08 22.917 1.03 1.32 1.355 IO | | | | 4.08 23.000 1.03 1.30 1.353 IO | | | | 4.07 23.083 1.02 1.29 1.351 IO | | | | 4.07 23.167 1.01 1.27 1.349 IO | | | | 4.07 23.250 1.01 1.26 1.347 IO | | | | 4.06 23.333 1.00 1.25 1.346 IO | | | | 4.06 23.417 0.99 1.23 1.344 IO | | | | 4.05 23.500 0.99 1.22 1.342 IO | | | | 4.05 23.583 0.98 1.21 1.341 IO | | | | 4.05 23.667 0.97 1.19 1.339 IO | | | | 4.04 23.750 0.97 1.18 1.338 IO | | | | 4.04 23.833 0.96 1.17 1.336 IO | | | | 4.04 23.917 0.96 1.16 1.335 IO | | | | 4.03 24.000 0.95 1.15 1.334 IO | | | | 4.03 24.083 0.85 1.14 1.332 O | | | | 4.03 24.167 0.37 1.11 1.328 O | | | | 4.02 24.250 0.07 1.06 1.322 O | | | | 4.01 24.333 0.01 1.04 1.315 O | | | | 3.99 24.417 0.00 1.04 1.308 O | | | | 3.97 24.500 0.00 1.04 1.301 O | | | | 3.96 24.583 0.00 1.04 1.294 O | | | | 3.94 24.667 0.00 1.04 1.287 O | | | | 3.92 24.750 0.00 1.04 1.280 O | | | | 3.90 24.833 0.00 1.04 1.273 O | | | | 3.89 24.917 0.00 1.03 1.265 O | | | | 3.87 25.000 0.00 1.03 1.258 O | | | | 3.85 25.083 0.00 1.03 1.251 O | | | | 3.84 25.167 0.00 1.03 1.244 O | | | | 3.82 25.250 0.00 1.03 1.237 O | | | | 3.80 25.333 0.00 1.03 1.230 O | | | | 3.79 25.417 0.00 1.03 1.223 O | | | | 3.77 25.500 0.00 1.03 1.216 O | | | | 3.75 25.583 0.00 1.03 1.209 O | | | | 3.73 25.667 0.00 1.03 1.201 O | | | | 3.72 25.750 0.00 1.03 1.194 O | | | | 3.70 25.833 0.00 1.03 1.187 O | | | | 3.68 25.917 0.00 1.03 1.180 O | | | | 3.67 26.000 0.00 1.03 1.173 O | | | | 3.65 26.083 0.00 1.03 1.166 O | | | | 3.63 26.167 0.00 1.02 1.159 O | | | | 3.62 26.250 0.00 1.02 1.152 O | | | | 3.60 26.333 0.00 1.02 1.145 O | | | | 3.58 26.417 0.00 1.02 1.138 O | | | | 3.57 26.500 0.00 1.02 1.131 O | | | | 3.55 26.583 0.00 1.02 1.124 O | | | | 3.53 26.667 0.00 1.02 1.117 O | | | | 3.52 26.750 0.00 1.02 1.110 O | | | | 3.50 26.833 0.00 1.02 1.103 O | | | | 3.48 26.917 0.00 1.02 1.096 O | | | | 3.47 27.000 0.00 1.02 1.089 O | | | | 3.45 27.083 0.00 1.02 1.082 O | | | | 3.43 27.167 0.00 1.02 1.075 O | | | | 3.42 27.250 0.00 1.02 1.068 O | | | | 3.40 27.333 0.00 1.02 1.061 O | | | | 3.38 27.417 0.00 1.01 1.054 O | | | | 3.37 27.500 0.00 1.01 1.047 O | | | | 3.35 27.583 0.00 1.01 1.040 O | | | | 3.33 27.667 0.00 1.01 1.033 O | | | | 3.32 27.750 0.00 1.01 1.026 O | | | | 3.30 27.833 0.00 1.01 1.019 O | | | | 3.28 27.917 0.00 1.01 1.012 O | | | | 3.27 28.000 0.00 1.01 1.005 O | | | | 3.25 28.083 0.00 1.01 0.998 O | | | | 3.23 28.167 0.00 1.01 0.991 O | | | | 3.22 28.250 0.00 1.01 0.984 O | | | | 3.20 28.333 0.00 1.01 0.977 O | | | | 3.18 28.417 0.00 1.01 0.970 O | | | | 3.17 28.500 0.00 1.01 0.963 O | | | | 3.15 28.583 0.00 1.01 0.956 O | | | | 3.13 28.667 0.00 1.00 0.949 O | | | | 3.12 28.750 0.00 1.00 0.943 O | | | | 3.10 28.833 0.00 1.00 0.936 O | | | | 3.08 28.917 0.00 1.00 0.929 O | | | | 3.07 29.000 0.00 1.00 0.922 O | | | | 3.05 29.083 0.00 1.00 0.915 O | | | | 3.04 29.167 0.00 1.00 0.908 O | | | | 3.02 29.250 0.00 1.00 0.901 O | | | | 3.00 29.333 0.00 1.00 0.894 O | | | | 2.98 29.417 0.00 1.00 0.887 O | | | | 2.97 29.500 0.00 1.00 0.880 O | | | | 2.95 29.583 0.00 1.00 0.874 O | | | | 2.93 29.667 0.00 1.00 0.867 O | | | | 2.91 29.750 0.00 1.00 0.860 O | | | | 2.89 29.833 0.00 1.00 0.853 O | | | | 2.88 29.917 0.00 1.00 0.846 O | | | | 2.86 30.000 0.00 1.00 0.839 O | | | | 2.84 30.083 0.00 1.00 0.832 O | | | | 2.82 30.167 0.00 1.00 0.825 O | | | | 2.80 30.250 0.00 1.00 0.818 O | | | | 2.79 30.333 0.00 1.00 0.812 O | | | | 2.77 30.417 0.00 1.00 0.805 O | | | | 2.75 30.500 0.00 1.00 0.798 O | | | | 2.73 30.583 0.00 1.00 0.791 O | | | | 2.71 30.667 0.00 1.00 0.784 O | | | | 2.69 30.750 0.00 1.00 0.777 O | | | | 2.68 30.833 0.00 1.00 0.770 O | | | | 2.66 30.917 0.00 1.00 0.763 O | | | | 2.64 31.000 0.00 1.00 0.756 O | | | | 2.62 31.083 0.00 1.00 0.750 O | | | | 2.60 31.167 0.00 1.00 0.743 O | | | | 2.59 31.250 0.00 1.00 0.736 O | | | | 2.57 31.333 0.00 1.00 0.729 O | | | | 2.55 31.417 0.00 1.00 0.722 O | | | | 2.53 31.500 0.00 1.00 0.715 O | | | | 2.51 31.583 0.00 1.00 0.708 O | | | | 2.50 31.667 0.00 1.00 0.701 O | | | | 2.48 31.750 0.00 1.00 0.694 O | | | | 2.46 31.833 0.00 1.00 0.688 O | | | | 2.44 31.917 0.00 1.00 0.681 O | | | | 2.42 32.000 0.00 1.00 0.674 O | | | | 2.40 32.083 0.00 1.00 0.667 O | | | | 2.39 32.167 0.00 1.00 0.660 O | | | | 2.37 32.250 0.00 1.00 0.653 O | | | | 2.35 32.333 0.00 1.00 0.646 O | | | | 2.33 32.417 0.00 1.00 0.639 O | | | | 2.31 32.500 0.00 1.00 0.633 O | | | | 2.30 32.583 0.00 1.00 0.626 O | | | | 2.28 32.667 0.00 1.00 0.619 O | | | | 2.26 32.750 0.00 1.00 0.612 O | | | | 2.24 32.833 0.00 1.00 0.605 O | | | | 2.22 32.917 0.00 1.00 0.598 O | | | | 2.21 33.000 0.00 1.00 0.591 O | | | | 2.19 33.083 0.00 1.00 0.584 O | | | | 2.17 33.167 0.00 1.00 0.577 O | | | | 2.15 33.250 0.00 1.00 0.571 O | | | | 2.13 33.333 0.00 1.00 0.564 O | | | | 2.11 33.417 0.00 1.00 0.557 O | | | | 2.10 33.500 0.00 1.00 0.550 O | | | | 2.08 33.583 0.00 1.00 0.543 O | | | | 2.06 33.667 0.00 1.00 0.536 O | | | | 2.04 33.750 0.00 1.00 0.529 O | | | | 2.02 33.833 0.00 1.00 0.522 O | | | | 2.01 33.917 0.00 1.00 0.515 O | | | | 1.99 34.000 0.00 1.00 0.509 O | | | | 1.96 34.083 0.00 1.00 0.502 O | | | | 1.94 34.167 0.00 1.00 0.495 O | | | | 1.92 34.250 0.00 1.00 0.488 O | | | | 1.90 34.333 0.00 1.00 0.481 O | | | | 1.87 34.417 0.00 1.00 0.474 O | | | | 1.85 34.500 0.00 1.00 0.467 O | | | | 1.83 34.583 0.00 1.00 0.460 O | | | | 1.81 34.667 0.00 1.00 0.453 O | | | | 1.79 34.750 0.00 1.00 0.447 O | | | | 1.76 34.833 0.00 1.00 0.440 O | | | | 1.74 34.917 0.00 1.00 0.433 O | | | | 1.72 35.000 0.00 1.00 0.426 O | | | | 1.70 35.083 0.00 1.00 0.419 O | | | | 1.67 35.167 0.00 1.00 0.412 O | | | | 1.65 35.250 0.00 1.00 0.405 O | | | | 1.63 35.333 0.00 1.00 0.398 O | | | | 1.61 35.417 0.00 1.00 0.391 O | | | | 1.59 35.500 0.00 1.00 0.385 O | | | | 1.56 35.583 0.00 1.00 0.378 O | | | | 1.54 35.667 0.00 1.00 0.371 O | | | | 1.52 35.750 0.00 1.00 0.364 O | | | | 1.50 35.833 0.00 1.00 0.357 O | | | | 1.47 35.917 0.00 1.00 0.350 O | | | | 1.45 36.000 0.00 1.00 0.343 O | | | | 1.43 36.083 0.00 1.00 0.336 O | | | | 1.41 36.167 0.00 1.00 0.329 O | | | | 1.39 36.250 0.00 1.00 0.323 O | | | | 1.36 36.333 0.00 1.00 0.316 O | | | | 1.34 36.417 0.00 1.00 0.309 O | | | | 1.32 36.500 0.00 1.00 0.302 O | | | | 1.30 36.583 0.00 1.00 0.295 O | | | | 1.27 36.667 0.00 1.00 0.288 O | | | | 1.25 36.750 0.00 1.00 0.281 O | | | | 1.23 36.833 0.00 1.00 0.274 O | | | | 1.21 36.917 0.00 1.00 0.267 O | | | | 1.19 37.000 0.00 1.00 0.261 O | | | | 1.16 37.083 0.00 1.00 0.254 O | | | | 1.14 37.167 0.00 1.00 0.247 O | | | | 1.12 37.250 0.00 1.00 0.240 O | | | | 1.10 37.333 0.00 1.00 0.233 O | | | | 1.07 37.417 0.00 1.00 0.226 O | | | | 1.05 37.500 0.00 1.00 0.219 O | | | | 1.03 37.583 0.00 1.00 0.212 O | | | | 1.01 37.667 0.00 0.98 0.206 O | | | | 0.98 37.750 0.00 0.95 0.199 O | | | | 0.95 37.833 0.00 0.92 0.193 O | | | | 0.92 37.917 0.00 0.89 0.186 O | | | | 0.89 38.000 0.00 0.86 0.180 O | | | | 0.86 38.083 0.00 0.83 0.174 O | | | | 0.83 38.167 0.00 0.80 0.169 O | | | | 0.80 38.250 0.00 0.78 0.163 O | | | | 0.78 38.333 0.00 0.75 0.158 O | | | | 0.75 38.417 0.00 0.73 0.153 O | | | | 0.73 38.500 0.00 0.71 0.148 O | | | | 0.71 38.583 0.00 0.68 0.143 O | | | | 0.68 38.667 0.00 0.66 0.139 O | | | | 0.66 38.750 0.00 0.64 0.134 O | | | | 0.64 38.833 0.00 0.62 0.130 O | | | | 0.62 38.917 0.00 0.60 0.126 O | | | | 0.60 39.000 0.00 0.58 0.122 O | | | | 0.58 39.083 0.00 0.56 0.118 O | | | | 0.56 39.167 0.00 0.54 0.114 O | | | | 0.54 39.250 0.00 0.52 0.110 O | | | | 0.52 39.333 0.00 0.51 0.107 O | | | | 0.51 39.417 0.00 0.49 0.103 O | | | | 0.49 39.500 0.00 0.48 0.100 O | | | | 0.48 39.583 0.00 0.46 0.097 O | | | | 0.46 39.667 0.00 0.45 0.094 O | | | | 0.45 39.750 0.00 0.43 0.091 O | | | | 0.43 39.833 0.00 0.42 0.088 O | | | | 0.42 39.917 0.00 0.40 0.085 O | | | | 0.40 40.000 0.00 0.39 0.082 O | | | | 0.39 40.083 0.00 0.38 0.079 O | | | | 0.38 40.167 0.00 0.37 0.077 O | | | | 0.37 40.250 0.00 0.35 0.074 O | | | | 0.35 40.333 0.00 0.34 0.072 O | | | | 0.34 40.417 0.00 0.33 0.070 O | | | | 0.33 40.500 0.00 0.32 0.067 O | | | | 0.32 40.583 0.00 0.31 0.065 O | | | | 0.31 40.667 0.00 0.30 0.063 O | | | | 0.30 40.750 0.00 0.29 0.061 O | | | | 0.29 40.833 0.00 0.28 0.059 O | | | | 0.28 40.917 0.00 0.27 0.057 O | | | | 0.27 41.000 0.00 0.26 0.055 O | | | | 0.26 41.083 0.00 0.26 0.054 O | | | | 0.26 41.167 0.00 0.25 0.052 O | | | | 0.25 41.250 0.00 0.24 0.050 O | | | | 0.24 41.333 0.00 0.23 0.049 O | | | | 0.23 41.417 0.00 0.22 0.047 O | | | | 0.22 41.500 0.00 0.22 0.045 O | | | | 0.22 41.583 0.00 0.21 0.044 O | | | | 0.21 41.667 0.00 0.20 0.043 O | | | | 0.20 41.750 0.00 0.20 0.041 O | | | | 0.20 41.833 0.00 0.19 0.040 O | | | | 0.19 41.917 0.00 0.18 0.039 O | | | | 0.18 42.000 0.00 0.18 0.037 O | | | | 0.18 42.083 0.00 0.17 0.036 O | | | | 0.17 42.167 0.00 0.17 0.035 O | | | | 0.17 42.250 0.00 0.16 0.034 O | | | | 0.16 42.333 0.00 0.16 0.033 O | | | | 0.16 42.417 0.00 0.15 0.032 O | | | | 0.15 42.500 0.00 0.15 0.031 O | | | | 0.15 42.583 0.00 0.14 0.030 O | | | | 0.14 42.667 0.00 0.14 0.029 O | | | | 0.14 42.750 0.00 0.13 0.028 O | | | | 0.13 42.833 0.00 0.13 0.027 O | | | | 0.13 42.917 0.00 0.12 0.026 O | | | | 0.12 43.000 0.00 0.12 0.025 O | | | | 0.12 43.083 0.00 0.12 0.024 O | | | | 0.12 43.167 0.00 0.11 0.024 O | | | | 0.11 43.250 0.00 0.11 0.023 O | | | | 0.11 43.333 0.00 0.11 0.022 O | | | | 0.11 43.417 0.00 0.10 0.021 O | | | | 0.10 43.500 0.00 0.10 0.021 O | | | | 0.10 43.583 0.00 0.10 0.020 O | | | | 0.10 43.667 0.00 0.09 0.019 O | | | | 0.09 43.750 0.00 0.09 0.019 O | | | | 0.09 43.833 0.00 0.09 0.018 O | | | | 0.09 43.917 0.00 0.08 0.018 O | | | | 0.08 44.000 0.00 0.08 0.017 O | | | | 0.08 44.083 0.00 0.08 0.016 O | | | | 0.08 44.167 0.00 0.08 0.016 O | | | | 0.08 44.250 0.00 0.07 0.015 O | | | | 0.07 44.333 0.00 0.07 0.015 O | | | | 0.07 44.417 0.00 0.07 0.014 O | | | | 0.07 44.500 0.00 0.07 0.014 O | | | | 0.07 44.583 0.00 0.06 0.014 O | | | | 0.06 44.667 0.00 0.06 0.013 O | | | | 0.06 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.06 0.013 O | | | | 0.06 44.833 0.00 0.06 0.012 O | | | | 0.06 44.917 0.00 0.06 0.012 O | | | | 0.06 45.000 0.00 0.05 0.011 O | | | | 0.05 45.083 0.00 0.05 0.011 O | | | | 0.05 45.167 0.00 0.05 0.011 O | | | | 0.05 45.250 0.00 0.05 0.010 O | | | | 0.05 45.333 0.00 0.05 0.010 O | | | | 0.05 45.417 0.00 0.05 0.010 O | | | | 0.05 45.500 0.00 0.04 0.009 O | | | | 0.04 45.583 0.00 0.04 0.009 O | | | | 0.04 45.667 0.00 0.04 0.009 O | | | | 0.04 45.750 0.00 0.04 0.009 O | | | | 0.04 45.833 0.00 0.04 0.008 O | | | | 0.04 45.917 0.00 0.04 0.008 O | | | | 0.04 46.000 0.00 0.04 0.008 O | | | | 0.04 46.083 0.00 0.04 0.007 O | | | | 0.04 46.167 0.00 0.03 0.007 O | | | | 0.03 46.250 0.00 0.03 0.007 O | | | | 0.03 46.333 0.00 0.03 0.007 O | | | | 0.03 46.417 0.00 0.03 0.007 O | | | | 0.03 46.500 0.00 0.03 0.006 O | | | | 0.03 46.583 0.00 0.03 0.006 O | | | | 0.03 46.667 0.00 0.03 0.006 O | | | | 0.03 46.750 0.00 0.03 0.006 O | | | | 0.03 46.833 0.00 0.03 0.006 O | | | | 0.03 46.917 0.00 0.03 0.005 O | | | | 0.03 47.000 0.00 0.02 0.005 O | | | | 0.02 47.083 0.00 0.02 0.005 O | | | | 0.02 47.167 0.00 0.02 0.005 O | | | | 0.02 47.250 0.00 0.02 0.005 O | | | | 0.02 47.333 0.00 0.02 0.004 O | | | | 0.02 47.417 0.00 0.02 0.004 O | | | | 0.02 47.500 0.00 0.02 0.001 O | | | | 0.02 47.583 0.00 0.02 0.003 O | | | | 0.02 47.667 0.00 0.02 0.002 O | | | | 0.02 47.750 0.00 0.02 0.002 O | | | | 0.02 47.833 0.00 0.01 0.001 O | | | | 0.01 47.917 0.00 0.01 0.001 O | | | | 0.01 48.000 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 576 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 5.288 (CFS) Total volume = 4.317 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX D.8 BASIN ROUTING ANALYSIS DRAINAGE AREA B– 100 YEAR FLOOD HYDROGRAPH ROUTING PROGRAM Copyright (c) CIVILCADD/CIVILDESIGN, 1989 - 2005 Study date: 01/24/23 --------------------------------------------------------------------- JOB NO. 2022-318 11115 HEMLOCK AVE 100 YEAR, BASIN ROUTING POST-CONDITION, CHAMBER B -------------------------------------------------------------------- Program License Serial Number 6277 -------------------------------------------------------------------- ********************* HYDROGRAPH INFORMATION ********************** From study/file name: 2022318UH100POSTB.rte ****************************HYDROGRAPH DATA**************************** Number of intervals = 292 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 48.644 (CFS) Total volume = 5.540 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Process from Point/Station 5.300 to Point/Station 5.300 **** RETARDING BASIN ROUTING **** ______________________________________________________________________ User entry of depth-outflow-storage data -------------------------------------------------------------------- Total number of inflow hydrograph intervals = 292 Hydrograph time unit = 5.000 (Min.) Initial depth in storage basin = 0.00(Ft.) -------------------------------------------------------------------- -------------------------------------------------------------------- Initial basin depth = 0.00 (Ft.) Initial basin storage = 0.00 (Ac.Ft) Initial basin outflow = 0.00 (CFS) --------------------------------------------------------------------- -------------------------------------------------------------------- Depth vs. Storage and Depth vs. Discharge data: Basin Depth Storage Outflow (S-O*dt/2) (S+O*dt/2) (Ft.) (Ac.Ft) (CFS) (Ac.Ft) (Ac.Ft) --------------------------------------------------------------------- 0.000 0.000 0.000 0.000 0.000 1.000 0.210 1.000 0.207 0.213 2.000 0.520 1.000 0.517 0.523 3.000 0.900 1.000 0.897 0.903 4.000 1.320 1.040 1.316 1.324 5.000 1.760 4.580 1.744 1.776 6.000 2.190 6.510 2.168 2.212 7.000 2.610 7.980 2.583 2.637 8.000 2.900 9.220 2.868 2.932 9.000 3.310 10.320 3.274 3.346 -------------------------------------------------------------------- Hydrograph Detention Basin Routing --------------------------------------------------------------------- Graph values: 'I'= unit inflow; 'O'=outflow at time shown --------------------------------------------------------------------- Time Inflow Outflow Storage Depth (Hours) (CFS) (CFS) (Ac.Ft) .0 12.2 24.32 36.48 48.64 (Ft.) 0.083 0.13 0.00 0.000 O | | | | 0.00 0.167 0.74 0.02 0.003 O | | | | 0.02 0.250 1.12 0.05 0.010 O | | | | 0.05 0.333 1.19 0.08 0.017 O | | | | 0.08 0.417 1.21 0.12 0.025 O | | | | 0.12 0.500 1.21 0.15 0.032 O | | | | 0.15 0.583 1.22 0.19 0.039 O | | | | 0.19 0.667 1.22 0.22 0.046 O | | | | 0.22 0.750 1.22 0.25 0.053 O | | | | 0.25 0.833 1.23 0.28 0.060 O | | | | 0.28 0.917 1.23 0.31 0.066 O | | | | 0.31 1.000 1.23 0.34 0.072 O | | | | 0.34 1.083 1.24 0.37 0.078 O | | | | 0.37 1.167 1.24 0.40 0.084 O | | | | 0.40 1.250 1.25 0.43 0.090 O | | | | 0.43 1.333 1.25 0.45 0.095 O | | | | 0.45 1.417 1.25 0.48 0.101 O | | | | 0.48 1.500 1.26 0.51 0.106 O | | | | 0.51 1.583 1.26 0.53 0.111 O | | | | 0.53 1.667 1.27 0.55 0.116 O | | | | 0.55 1.750 1.27 0.58 0.121 O | | | | 0.58 1.833 1.27 0.60 0.126 O | | | | 0.60 1.917 1.28 0.62 0.130 O | | | | 0.62 2.000 1.28 0.64 0.135 O | | | | 0.64 2.083 1.29 0.66 0.139 O | | | | 0.66 2.167 1.29 0.68 0.143 O | | | | 0.68 2.250 1.30 0.70 0.148 O | | | | 0.70 2.333 1.30 0.72 0.152 O | | | | 0.72 2.417 1.30 0.74 0.156 O | | | | 0.74 2.500 1.31 0.76 0.159 O | | | | 0.76 2.583 1.31 0.78 0.163 O | | | | 0.78 2.667 1.32 0.79 0.167 O | | | | 0.79 2.750 1.32 0.81 0.170 O | | | | 0.81 2.833 1.33 0.83 0.174 O | | | | 0.83 2.917 1.33 0.84 0.177 O | | | | 0.84 3.000 1.34 0.86 0.181 O | | | | 0.86 3.083 1.34 0.88 0.184 O | | | | 0.88 3.167 1.35 0.89 0.187 O | | | | 0.89 3.250 1.35 0.91 0.190 O | | | | 0.91 3.333 1.36 0.92 0.193 O | | | | 0.92 3.417 1.36 0.93 0.196 O | | | | 0.93 3.500 1.37 0.95 0.199 O | | | | 0.95 3.583 1.37 0.96 0.202 O | | | | 0.96 3.667 1.38 0.97 0.205 O | | | | 0.97 3.750 1.38 0.99 0.207 O | | | | 0.99 3.833 1.39 1.00 0.210 O | | | | 1.00 3.917 1.39 1.00 0.213 O | | | | 1.01 4.000 1.40 1.00 0.216 O | | | | 1.02 4.083 1.40 1.00 0.218 O | | | | 1.03 4.167 1.41 1.00 0.221 O | | | | 1.04 4.250 1.41 1.00 0.224 O | | | | 1.05 4.333 1.42 1.00 0.227 O | | | | 1.05 4.417 1.43 1.00 0.230 O | | | | 1.06 4.500 1.43 1.00 0.233 O | | | | 1.07 4.583 1.44 1.00 0.236 O | | | | 1.08 4.667 1.44 1.00 0.239 O | | | | 1.09 4.750 1.45 1.00 0.242 O | | | | 1.10 4.833 1.46 1.00 0.245 O | | | | 1.11 4.917 1.46 1.00 0.248 O | | | | 1.12 5.000 1.47 1.00 0.251 O | | | | 1.13 5.083 1.47 1.00 0.255 O | | | | 1.14 5.167 1.48 1.00 0.258 O | | | | 1.15 5.250 1.49 1.00 0.261 O | | | | 1.16 5.333 1.49 1.00 0.264 O | | | | 1.18 5.417 1.50 1.00 0.268 O | | | | 1.19 5.500 1.51 1.00 0.271 O | | | | 1.20 5.583 1.51 1.00 0.275 O | | | | 1.21 5.667 1.52 1.00 0.278 O | | | | 1.22 5.750 1.53 1.00 0.282 OI | | | | 1.23 5.833 1.53 1.00 0.286 OI | | | | 1.24 5.917 1.54 1.00 0.289 OI | | | | 1.26 6.000 1.55 1.00 0.293 OI | | | | 1.27 6.083 1.55 1.00 0.297 OI | | | | 1.28 6.167 1.56 1.00 0.301 OI | | | | 1.29 6.250 1.57 1.00 0.305 OI | | | | 1.31 6.333 1.58 1.00 0.309 OI | | | | 1.32 6.417 1.58 1.00 0.313 OI | | | | 1.33 6.500 1.59 1.00 0.317 OI | | | | 1.34 6.583 1.60 1.00 0.321 OI | | | | 1.36 6.667 1.61 1.00 0.325 OI | | | | 1.37 6.750 1.62 1.00 0.329 OI | | | | 1.38 6.833 1.62 1.00 0.333 OI | | | | 1.40 6.917 1.63 1.00 0.338 OI | | | | 1.41 7.000 1.64 1.00 0.342 OI | | | | 1.43 7.083 1.65 1.00 0.347 OI | | | | 1.44 7.167 1.66 1.00 0.351 OI | | | | 1.45 7.250 1.67 1.00 0.356 OI | | | | 1.47 7.333 1.67 1.00 0.360 OI | | | | 1.48 7.417 1.68 1.00 0.365 OI | | | | 1.50 7.500 1.69 1.00 0.370 OI | | | | 1.51 7.583 1.70 1.00 0.374 OI | | | | 1.53 7.667 1.71 1.00 0.379 OI | | | | 1.55 7.750 1.72 1.00 0.384 OI | | | | 1.56 7.833 1.73 1.00 0.389 OI | | | | 1.58 7.917 1.74 1.00 0.394 OI | | | | 1.59 8.000 1.75 1.00 0.399 OI | | | | 1.61 8.083 1.76 1.00 0.405 OI | | | | 1.63 8.167 1.77 1.00 0.410 OI | | | | 1.64 8.250 1.78 1.00 0.415 OI | | | | 1.66 8.333 1.79 1.00 0.421 OI | | | | 1.68 8.417 1.80 1.00 0.426 OI | | | | 1.70 8.500 1.81 1.00 0.432 OI | | | | 1.72 8.583 1.82 1.00 0.437 OI | | | | 1.73 8.667 1.84 1.00 0.443 OI | | | | 1.75 8.750 1.85 1.00 0.449 OI | | | | 1.77 8.833 1.86 1.00 0.455 OI | | | | 1.79 8.917 1.87 1.00 0.461 OI | | | | 1.81 9.000 1.88 1.00 0.467 OI | | | | 1.83 9.083 1.90 1.00 0.473 OI | | | | 1.85 9.167 1.91 1.00 0.479 OI | | | | 1.87 9.250 1.92 1.00 0.485 OI | | | | 1.89 9.333 1.94 1.00 0.492 OI | | | | 1.91 9.417 1.95 1.00 0.498 OI | | | | 1.93 9.500 1.96 1.00 0.505 OI | | | | 1.95 9.583 1.98 1.00 0.512 OI | | | | 1.97 9.667 1.99 1.00 0.518 OI | | | | 1.99 9.750 2.00 1.00 0.525 OI | | | | 2.01 9.833 2.02 1.00 0.532 OI | | | | 2.03 9.917 2.03 1.00 0.539 OI | | | | 2.05 10.000 2.05 1.00 0.546 OI | | | | 2.07 10.083 2.07 1.00 0.554 OI | | | | 2.09 10.167 2.08 1.00 0.561 OI | | | | 2.11 10.250 2.10 1.00 0.569 OI | | | | 2.13 10.333 2.12 1.00 0.576 OI | | | | 2.15 10.417 2.13 1.00 0.584 OI | | | | 2.17 10.500 2.15 1.00 0.592 OI | | | | 2.19 10.583 2.17 1.00 0.600 OI | | | | 2.21 10.667 2.19 1.00 0.608 OI | | | | 2.23 10.750 2.20 1.00 0.616 OI | | | | 2.25 10.833 2.23 1.00 0.624 OI | | | | 2.27 10.917 2.24 1.00 0.633 OI | | | | 2.30 11.000 2.27 1.00 0.642 OI | | | | 2.32 11.083 2.29 1.00 0.650 OI | | | | 2.34 11.167 2.31 1.00 0.659 OI | | | | 2.37 11.250 2.33 1.00 0.668 OI | | | | 2.39 11.333 2.35 1.00 0.678 OI | | | | 2.41 11.417 2.37 1.00 0.687 OI | | | | 2.44 11.500 2.40 1.00 0.697 OI | | | | 2.46 11.583 2.42 1.00 0.706 OI | | | | 2.49 11.667 2.45 1.00 0.716 OI | | | | 2.52 11.750 2.47 1.00 0.726 OI | | | | 2.54 11.833 2.50 1.00 0.736 OI | | | | 2.57 11.917 2.53 1.00 0.747 OI | | | | 2.60 12.000 2.56 1.00 0.758 OI | | | | 2.63 12.083 2.61 1.00 0.768 OI | | | | 2.65 12.167 2.76 1.00 0.780 OI | | | | 2.68 12.250 2.86 1.00 0.792 OI | | | | 2.72 12.333 2.91 1.00 0.805 OI | | | | 2.75 12.417 2.94 1.00 0.819 OI | | | | 2.79 12.500 2.98 1.00 0.832 OI | | | | 2.82 12.583 3.01 1.00 0.846 OI | | | | 2.86 12.667 3.05 1.00 0.860 O I | | | | 2.89 12.750 3.09 1.00 0.874 O I | | | | 2.93 12.833 3.13 1.00 0.889 O I | | | | 2.97 12.917 3.17 1.00 0.904 O I | | | | 3.01 13.000 3.22 1.00 0.919 O I | | | | 3.04 13.083 3.26 1.00 0.934 O I | | | | 3.08 13.167 3.31 1.00 0.950 O I | | | | 3.12 13.250 3.36 1.01 0.966 O I | | | | 3.16 13.333 3.41 1.01 0.982 O I | | | | 3.20 13.417 3.46 1.01 0.999 O I | | | | 3.24 13.500 3.52 1.01 1.016 O I | | | | 3.28 13.583 3.58 1.01 1.034 O I | | | | 3.32 13.667 3.64 1.01 1.051 O I | | | | 3.36 13.750 3.70 1.02 1.070 O I | | | | 3.40 13.833 3.78 1.02 1.088 O I | | | | 3.45 13.917 3.84 1.02 1.108 O I | | | | 3.49 14.000 3.92 1.02 1.127 O I | | | | 3.54 14.083 4.00 1.02 1.148 O I | | | | 3.59 14.167 4.09 1.03 1.168 O I | | | | 3.64 14.250 4.18 1.03 1.190 O I | | | | 3.69 14.333 4.29 1.03 1.212 O I | | | | 3.74 14.417 4.39 1.03 1.235 O I | | | | 3.80 14.500 4.51 1.03 1.258 O I | | | | 3.85 14.583 4.62 1.04 1.283 O I | | | | 3.91 14.667 4.76 1.04 1.308 O I | | | | 3.97 14.750 4.90 1.15 1.333 O I | | | | 4.03 14.833 5.06 1.36 1.359 O I | | | | 4.09 14.917 5.23 1.56 1.385 |O I | | | | 4.15 15.000 5.43 1.76 1.410 |O I | | | | 4.20 15.083 5.63 1.97 1.435 |O I | | | | 4.26 15.167 5.88 2.17 1.460 |O I | | | | 4.32 15.250 6.14 2.38 1.486 |O I | | | | 4.38 15.333 6.47 2.59 1.513 |O I | | | | 4.44 15.417 6.69 2.80 1.539 |O I | | | | 4.50 15.500 6.56 3.01 1.565 |O I | | | | 4.56 15.583 6.68 3.20 1.589 | O I | | | | 4.61 15.667 7.31 3.41 1.614 | O I | | | | 4.67 15.750 8.15 3.64 1.643 | O I | | | | 4.74 15.833 9.53 3.92 1.678 | O I | | | | 4.81 15.917 11.48 4.28 1.722 | O I| | | | 4.91 16.000 15.48 4.69 1.784 | O | I | | | 5.06 16.083 26.29 5.18 1.894 | O | |I | | 5.31 16.167 48.64 6.17 2.113 | O | | | I 5.82 16.250 33.56 7.07 2.351 | O | | I | | 6.38 16.333 14.26 7.47 2.465 | O |I | | | 6.66 16.417 9.02 7.57 2.494 | OI | | | | 6.72 16.500 7.26 7.59 2.497 | O | | | | 6.73 16.583 6.66 7.57 2.493 | O | | | | 6.72 16.667 6.06 7.54 2.485 | IO | | | | 6.70 16.750 5.57 7.50 2.473 | IO | | | | 6.67 16.833 5.18 7.45 2.459 | IO | | | | 6.64 16.917 4.85 7.39 2.442 | IO | | | | 6.60 17.000 4.58 7.33 2.424 | IO | | | | 6.56 17.083 4.35 7.26 2.404 | I O | | | | 6.51 17.167 4.15 7.19 2.384 | I O | | | | 6.46 17.250 3.97 7.11 2.363 | I O | | | | 6.41 17.333 3.82 7.04 2.341 | I O | | | | 6.36 17.417 3.68 6.96 2.318 | I O | | | | 6.31 17.500 3.56 6.88 2.296 | I O | | | | 6.25 17.583 3.44 6.80 2.273 | I O | | | | 6.20 17.667 3.34 6.72 2.249 | I O | | | | 6.14 17.750 3.24 6.64 2.226 | I O | | | | 6.09 17.833 3.16 6.55 2.203 | I O | | | | 6.03 17.917 3.08 6.46 2.179 | I O | | | | 5.98 18.000 3.00 6.36 2.156 |I O | | | | 5.92 18.083 2.91 6.25 2.133 |I O | | | | 5.87 18.167 2.72 6.15 2.110 |I O | | | | 5.81 18.250 2.59 6.04 2.086 |I O | | | | 5.76 18.333 2.52 5.94 2.062 |I O | | | | 5.70 18.417 2.46 5.83 2.039 |I O | | | | 5.65 18.500 2.41 5.73 2.016 |I O | | | | 5.60 18.583 2.37 5.63 1.993 |I O | | | | 5.54 18.667 2.32 5.53 1.971 |I O | | | | 5.49 18.750 2.28 5.43 1.949 |I O | | | | 5.44 18.833 2.24 5.33 1.928 |I O | | | | 5.39 18.917 2.20 5.24 1.907 |I O | | | | 5.34 19.000 2.16 5.14 1.886 |I O | | | | 5.29 19.083 2.13 5.05 1.865 |I O | | | | 5.25 19.167 2.09 4.96 1.845 |I O | | | | 5.20 19.250 2.06 4.88 1.826 |I O | | | | 5.15 19.333 2.03 4.79 1.807 |I O | | | | 5.11 19.417 2.00 4.71 1.788 |I O | | | | 5.06 19.500 1.97 4.62 1.769 |I O | | | | 5.02 19.583 1.94 4.51 1.751 |IO | | | | 4.98 19.667 1.92 4.37 1.734 |IO | | | | 4.94 19.750 1.89 4.24 1.718 |IO | | | | 4.90 19.833 1.87 4.11 1.702 |IO | | | | 4.87 19.917 1.84 3.99 1.687 |IO | | | | 4.83 20.000 1.82 3.87 1.672 |IO | | | | 4.80 20.083 1.80 3.76 1.658 |IO | | | | 4.77 20.167 1.78 3.66 1.645 |IO | | | | 4.74 20.250 1.76 3.55 1.632 |IO | | | | 4.71 20.333 1.74 3.46 1.620 |IO | | | | 4.68 20.417 1.72 3.36 1.609 |IO | | | | 4.66 20.500 1.70 3.27 1.598 |IO | | | | 4.63 20.583 1.68 3.19 1.587 |IO | | | | 4.61 20.667 1.66 3.11 1.577 |IO | | | | 4.58 20.750 1.65 3.03 1.567 |O | | | | 4.56 20.833 1.63 2.95 1.558 |O | | | | 4.54 20.917 1.61 2.88 1.549 |O | | | | 4.52 21.000 1.60 2.81 1.540 |O | | | | 4.50 21.083 1.58 2.75 1.532 |O | | | | 4.48 21.167 1.57 2.68 1.524 |O | | | | 4.46 21.250 1.55 2.62 1.517 |O | | | | 4.45 21.333 1.54 2.56 1.510 |O | | | | 4.43 21.417 1.52 2.51 1.503 |O | | | | 4.41 21.500 1.51 2.46 1.496 IO | | | | 4.40 21.583 1.50 2.40 1.490 IO | | | | 4.39 21.667 1.48 2.35 1.483 IO | | | | 4.37 21.750 1.47 2.31 1.478 IO | | | | 4.36 21.833 1.46 2.26 1.472 IO | | | | 4.35 21.917 1.45 2.22 1.466 IO | | | | 4.33 22.000 1.44 2.18 1.461 IO | | | | 4.32 22.083 1.42 2.14 1.456 IO | | | | 4.31 22.167 1.41 2.10 1.451 IO | | | | 4.30 22.250 1.40 2.06 1.447 IO | | | | 4.29 22.333 1.39 2.02 1.442 IO | | | | 4.28 22.417 1.38 1.99 1.438 IO | | | | 4.27 22.500 1.37 1.96 1.434 IO | | | | 4.26 22.583 1.36 1.92 1.430 IO | | | | 4.25 22.667 1.35 1.89 1.426 IO | | | | 4.24 22.750 1.34 1.86 1.422 IO | | | | 4.23 22.833 1.33 1.84 1.419 IO | | | | 4.22 22.917 1.32 1.81 1.416 IO | | | | 4.22 23.000 1.31 1.78 1.412 IO | | | | 4.21 23.083 1.30 1.76 1.409 IO | | | | 4.20 23.167 1.29 1.73 1.406 IO | | | | 4.20 23.250 1.29 1.71 1.403 IO | | | | 4.19 23.333 1.28 1.68 1.400 IO | | | | 4.18 23.417 1.27 1.66 1.397 IO | | | | 4.18 23.500 1.26 1.64 1.395 IO | | | | 4.17 23.583 1.25 1.62 1.392 IO | | | | 4.16 23.667 1.24 1.60 1.390 IO | | | | 4.16 23.750 1.24 1.58 1.387 IO | | | | 4.15 23.833 1.23 1.56 1.385 IO | | | | 4.15 23.917 1.22 1.54 1.383 IO | | | | 4.14 24.000 1.21 1.53 1.380 IO | | | | 4.14 24.083 1.08 1.51 1.378 O | | | | 4.13 24.167 0.47 1.47 1.373 O | | | | 4.12 24.250 0.08 1.40 1.365 O | | | | 4.10 24.333 0.02 1.33 1.356 O | | | | 4.08 24.417 0.00 1.26 1.347 O | | | | 4.06 24.500 0.00 1.19 1.339 O | | | | 4.04 24.583 0.00 1.13 1.331 O | | | | 4.02 24.667 0.00 1.07 1.323 O | | | | 4.01 24.750 0.00 1.04 1.316 O | | | | 3.99 24.833 0.00 1.04 1.309 O | | | | 3.97 24.917 0.00 1.04 1.302 O | | | | 3.96 25.000 0.00 1.04 1.294 O | | | | 3.94 25.083 0.00 1.04 1.287 O | | | | 3.92 25.167 0.00 1.04 1.280 O | | | | 3.91 25.250 0.00 1.04 1.273 O | | | | 3.89 25.333 0.00 1.03 1.266 O | | | | 3.87 25.417 0.00 1.03 1.259 O | | | | 3.85 25.500 0.00 1.03 1.252 O | | | | 3.84 25.583 0.00 1.03 1.245 O | | | | 3.82 25.667 0.00 1.03 1.237 O | | | | 3.80 25.750 0.00 1.03 1.230 O | | | | 3.79 25.833 0.00 1.03 1.223 O | | | | 3.77 25.917 0.00 1.03 1.216 O | | | | 3.75 26.000 0.00 1.03 1.209 O | | | | 3.74 26.083 0.00 1.03 1.202 O | | | | 3.72 26.167 0.00 1.03 1.195 O | | | | 3.70 26.250 0.00 1.03 1.188 O | | | | 3.69 26.333 0.00 1.03 1.181 O | | | | 3.67 26.417 0.00 1.03 1.174 O | | | | 3.65 26.500 0.00 1.03 1.167 O | | | | 3.63 26.583 0.00 1.02 1.160 O | | | | 3.62 26.667 0.00 1.02 1.152 O | | | | 3.60 26.750 0.00 1.02 1.145 O | | | | 3.58 26.833 0.00 1.02 1.138 O | | | | 3.57 26.917 0.00 1.02 1.131 O | | | | 3.55 27.000 0.00 1.02 1.124 O | | | | 3.53 27.083 0.00 1.02 1.117 O | | | | 3.52 27.167 0.00 1.02 1.110 O | | | | 3.50 27.250 0.00 1.02 1.103 O | | | | 3.48 27.333 0.00 1.02 1.096 O | | | | 3.47 27.417 0.00 1.02 1.089 O | | | | 3.45 27.500 0.00 1.02 1.082 O | | | | 3.43 27.583 0.00 1.02 1.075 O | | | | 3.42 27.667 0.00 1.02 1.068 O | | | | 3.40 27.750 0.00 1.02 1.061 O | | | | 3.38 27.833 0.00 1.01 1.054 O | | | | 3.37 27.917 0.00 1.01 1.047 O | | | | 3.35 28.000 0.00 1.01 1.040 O | | | | 3.33 28.083 0.00 1.01 1.033 O | | | | 3.32 28.167 0.00 1.01 1.026 O | | | | 3.30 28.250 0.00 1.01 1.019 O | | | | 3.28 28.333 0.00 1.01 1.012 O | | | | 3.27 28.417 0.00 1.01 1.005 O | | | | 3.25 28.500 0.00 1.01 0.998 O | | | | 3.23 28.583 0.00 1.01 0.991 O | | | | 3.22 28.667 0.00 1.01 0.985 O | | | | 3.20 28.750 0.00 1.01 0.978 O | | | | 3.18 28.833 0.00 1.01 0.971 O | | | | 3.17 28.917 0.00 1.01 0.964 O | | | | 3.15 29.000 0.00 1.01 0.957 O | | | | 3.14 29.083 0.00 1.00 0.950 O | | | | 3.12 29.167 0.00 1.00 0.943 O | | | | 3.10 29.250 0.00 1.00 0.936 O | | | | 3.09 29.333 0.00 1.00 0.929 O | | | | 3.07 29.417 0.00 1.00 0.922 O | | | | 3.05 29.500 0.00 1.00 0.915 O | | | | 3.04 29.583 0.00 1.00 0.908 O | | | | 3.02 29.667 0.00 1.00 0.902 O | | | | 3.00 29.750 0.00 1.00 0.895 O | | | | 2.99 29.833 0.00 1.00 0.888 O | | | | 2.97 29.917 0.00 1.00 0.881 O | | | | 2.95 30.000 0.00 1.00 0.874 O | | | | 2.93 30.083 0.00 1.00 0.867 O | | | | 2.91 30.167 0.00 1.00 0.860 O | | | | 2.90 30.250 0.00 1.00 0.853 O | | | | 2.88 30.333 0.00 1.00 0.846 O | | | | 2.86 30.417 0.00 1.00 0.840 O | | | | 2.84 30.500 0.00 1.00 0.833 O | | | | 2.82 30.583 0.00 1.00 0.826 O | | | | 2.80 30.667 0.00 1.00 0.819 O | | | | 2.79 30.750 0.00 1.00 0.812 O | | | | 2.77 30.833 0.00 1.00 0.805 O | | | | 2.75 30.917 0.00 1.00 0.798 O | | | | 2.73 31.000 0.00 1.00 0.791 O | | | | 2.71 31.083 0.00 1.00 0.784 O | | | | 2.70 31.167 0.00 1.00 0.778 O | | | | 2.68 31.250 0.00 1.00 0.771 O | | | | 2.66 31.333 0.00 1.00 0.764 O | | | | 2.64 31.417 0.00 1.00 0.757 O | | | | 2.62 31.500 0.00 1.00 0.750 O | | | | 2.61 31.583 0.00 1.00 0.743 O | | | | 2.59 31.667 0.00 1.00 0.736 O | | | | 2.57 31.750 0.00 1.00 0.729 O | | | | 2.55 31.833 0.00 1.00 0.722 O | | | | 2.53 31.917 0.00 1.00 0.716 O | | | | 2.51 32.000 0.00 1.00 0.709 O | | | | 2.50 32.083 0.00 1.00 0.702 O | | | | 2.48 32.167 0.00 1.00 0.695 O | | | | 2.46 32.250 0.00 1.00 0.688 O | | | | 2.44 32.333 0.00 1.00 0.681 O | | | | 2.42 32.417 0.00 1.00 0.674 O | | | | 2.41 32.500 0.00 1.00 0.667 O | | | | 2.39 32.583 0.00 1.00 0.661 O | | | | 2.37 32.667 0.00 1.00 0.654 O | | | | 2.35 32.750 0.00 1.00 0.647 O | | | | 2.33 32.833 0.00 1.00 0.640 O | | | | 2.32 32.917 0.00 1.00 0.633 O | | | | 2.30 33.000 0.00 1.00 0.626 O | | | | 2.28 33.083 0.00 1.00 0.619 O | | | | 2.26 33.167 0.00 1.00 0.612 O | | | | 2.24 33.250 0.00 1.00 0.605 O | | | | 2.22 33.333 0.00 1.00 0.599 O | | | | 2.21 33.417 0.00 1.00 0.592 O | | | | 2.19 33.500 0.00 1.00 0.585 O | | | | 2.17 33.583 0.00 1.00 0.578 O | | | | 2.15 33.667 0.00 1.00 0.571 O | | | | 2.13 33.750 0.00 1.00 0.564 O | | | | 2.12 33.833 0.00 1.00 0.557 O | | | | 2.10 33.917 0.00 1.00 0.550 O | | | | 2.08 34.000 0.00 1.00 0.543 O | | | | 2.06 34.083 0.00 1.00 0.537 O | | | | 2.04 34.167 0.00 1.00 0.530 O | | | | 2.03 34.250 0.00 1.00 0.523 O | | | | 2.01 34.333 0.00 1.00 0.516 O | | | | 1.99 34.417 0.00 1.00 0.509 O | | | | 1.96 34.500 0.00 1.00 0.502 O | | | | 1.94 34.583 0.00 1.00 0.495 O | | | | 1.92 34.667 0.00 1.00 0.488 O | | | | 1.90 34.750 0.00 1.00 0.481 O | | | | 1.88 34.833 0.00 1.00 0.475 O | | | | 1.85 34.917 0.00 1.00 0.468 O | | | | 1.83 35.000 0.00 1.00 0.461 O | | | | 1.81 35.083 0.00 1.00 0.454 O | | | | 1.79 35.167 0.00 1.00 0.447 O | | | | 1.76 35.250 0.00 1.00 0.440 O | | | | 1.74 35.333 0.00 1.00 0.433 O | | | | 1.72 35.417 0.00 1.00 0.426 O | | | | 1.70 35.500 0.00 1.00 0.419 O | | | | 1.68 35.583 0.00 1.00 0.413 O | | | | 1.65 35.667 0.00 1.00 0.406 O | | | | 1.63 35.750 0.00 1.00 0.399 O | | | | 1.61 35.833 0.00 1.00 0.392 O | | | | 1.59 35.917 0.00 1.00 0.385 O | | | | 1.56 36.000 0.00 1.00 0.378 O | | | | 1.54 36.083 0.00 1.00 0.371 O | | | | 1.52 36.167 0.00 1.00 0.364 O | | | | 1.50 36.250 0.00 1.00 0.357 O | | | | 1.48 36.333 0.00 1.00 0.351 O | | | | 1.45 36.417 0.00 1.00 0.344 O | | | | 1.43 36.500 0.00 1.00 0.337 O | | | | 1.41 36.583 0.00 1.00 0.330 O | | | | 1.39 36.667 0.00 1.00 0.323 O | | | | 1.36 36.750 0.00 1.00 0.316 O | | | | 1.34 36.833 0.00 1.00 0.309 O | | | | 1.32 36.917 0.00 1.00 0.302 O | | | | 1.30 37.000 0.00 1.00 0.295 O | | | | 1.28 37.083 0.00 1.00 0.289 O | | | | 1.25 37.167 0.00 1.00 0.282 O | | | | 1.23 37.250 0.00 1.00 0.275 O | | | | 1.21 37.333 0.00 1.00 0.268 O | | | | 1.19 37.417 0.00 1.00 0.261 O | | | | 1.16 37.500 0.00 1.00 0.254 O | | | | 1.14 37.583 0.00 1.00 0.247 O | | | | 1.12 37.667 0.00 1.00 0.240 O | | | | 1.10 37.750 0.00 1.00 0.234 O | | | | 1.08 37.833 0.00 1.00 0.227 O | | | | 1.05 37.917 0.00 1.00 0.220 O | | | | 1.03 38.000 0.00 1.00 0.213 O | | | | 1.01 38.083 0.00 0.98 0.206 O | | | | 0.98 38.167 0.00 0.95 0.199 O | | | | 0.95 38.250 0.00 0.92 0.193 O | | | | 0.92 38.333 0.00 0.89 0.187 O | | | | 0.89 38.417 0.00 0.86 0.181 O | | | | 0.86 38.500 0.00 0.83 0.175 O | | | | 0.83 38.583 0.00 0.81 0.169 O | | | | 0.81 38.667 0.00 0.78 0.164 O | | | | 0.78 38.750 0.00 0.75 0.158 O | | | | 0.75 38.833 0.00 0.73 0.153 O | | | | 0.73 38.917 0.00 0.71 0.148 O | | | | 0.71 39.000 0.00 0.68 0.144 O | | | | 0.68 39.083 0.00 0.66 0.139 O | | | | 0.66 39.167 0.00 0.64 0.135 O | | | | 0.64 39.250 0.00 0.62 0.130 O | | | | 0.62 39.333 0.00 0.60 0.126 O | | | | 0.60 39.417 0.00 0.58 0.122 O | | | | 0.58 39.500 0.00 0.56 0.118 O | | | | 0.56 39.583 0.00 0.54 0.114 O | | | | 0.54 39.667 0.00 0.53 0.110 O | | | | 0.53 39.750 0.00 0.51 0.107 O | | | | 0.51 39.833 0.00 0.49 0.103 O | | | | 0.49 39.917 0.00 0.48 0.100 O | | | | 0.48 40.000 0.00 0.46 0.097 O | | | | 0.46 40.083 0.00 0.45 0.094 O | | | | 0.45 40.167 0.00 0.43 0.091 O | | | | 0.43 40.250 0.00 0.42 0.088 O | | | | 0.42 40.333 0.00 0.40 0.085 O | | | | 0.40 40.417 0.00 0.39 0.082 O | | | | 0.39 40.500 0.00 0.38 0.080 O | | | | 0.38 40.583 0.00 0.37 0.077 O | | | | 0.37 40.667 0.00 0.35 0.075 O | | | | 0.35 40.750 0.00 0.34 0.072 O | | | | 0.34 40.833 0.00 0.33 0.070 O | | | | 0.33 40.917 0.00 0.32 0.068 O | | | | 0.32 41.000 0.00 0.31 0.065 O | | | | 0.31 41.083 0.00 0.30 0.063 O | | | | 0.30 41.167 0.00 0.29 0.061 O | | | | 0.29 41.250 0.00 0.28 0.059 O | | | | 0.28 41.333 0.00 0.27 0.057 O | | | | 0.27 41.417 0.00 0.26 0.055 O | | | | 0.26 41.500 0.00 0.26 0.054 O | | | | 0.26 41.583 0.00 0.25 0.052 O | | | | 0.25 41.667 0.00 0.24 0.050 O | | | | 0.24 41.750 0.00 0.23 0.049 O | | | | 0.23 41.833 0.00 0.22 0.047 O | | | | 0.22 41.917 0.00 0.22 0.046 O | | | | 0.22 42.000 0.00 0.21 0.044 O | | | | 0.21 42.083 0.00 0.20 0.043 O | | | | 0.20 42.167 0.00 0.20 0.041 O | | | | 0.20 42.250 0.00 0.19 0.040 O | | | | 0.19 42.333 0.00 0.18 0.039 O | | | | 0.18 42.417 0.00 0.18 0.037 O | | | | 0.18 42.500 0.00 0.17 0.036 O | | | | 0.17 42.583 0.00 0.17 0.035 O | | | | 0.17 42.667 0.00 0.16 0.034 O | | | | 0.16 42.750 0.00 0.16 0.033 O | | | | 0.16 42.833 0.00 0.15 0.032 O | | | | 0.15 42.917 0.00 0.15 0.031 O | | | | 0.15 43.000 0.00 0.14 0.030 O | | | | 0.14 43.083 0.00 0.14 0.029 O | | | | 0.14 43.167 0.00 0.13 0.028 O | | | | 0.13 43.250 0.00 0.13 0.027 O | | | | 0.13 43.333 0.00 0.12 0.026 O | | | | 0.12 43.417 0.00 0.12 0.025 O | | | | 0.12 43.500 0.00 0.12 0.024 O | | | | 0.12 43.583 0.00 0.11 0.024 O | | | | 0.11 43.667 0.00 0.11 0.023 O | | | | 0.11 43.750 0.00 0.11 0.022 O | | | | 0.11 43.833 0.00 0.10 0.021 O | | | | 0.10 43.917 0.00 0.10 0.021 O | | | | 0.10 44.000 0.00 0.10 0.020 O | | | | 0.10 44.083 0.00 0.09 0.019 O | | | | 0.09 44.167 0.00 0.09 0.019 O | | | | 0.09 44.250 0.00 0.09 0.018 O | | | | 0.09 44.333 0.00 0.08 0.018 O | | | | 0.08 44.417 0.00 0.08 0.017 O | | | | 0.08 44.500 0.00 0.08 0.016 O | | | | 0.08 44.583 0.00 0.08 0.016 O | | | | 0.08 44.667 0.00 0.07 0.015 O | | | | 0.07 Storm drainage remaining in the basin is the part of the DCV Volume (Water Quality) which allows a 48-hour drawdown time. 44.750 0.00 0.07 0.015 O | | | | 0.07 44.833 0.00 0.07 0.014 O | | | | 0.07 44.917 0.00 0.07 0.014 O | | | | 0.07 45.000 0.00 0.06 0.014 O | | | | 0.06 45.083 0.00 0.06 0.013 O | | | | 0.06 45.167 0.00 0.06 0.013 O | | | | 0.06 45.250 0.00 0.06 0.012 O | | | | 0.06 45.333 0.00 0.06 0.012 O | | | | 0.06 45.417 0.00 0.05 0.011 O | | | | 0.05 45.500 0.00 0.05 0.011 O | | | | 0.05 45.583 0.00 0.05 0.011 O | | | | 0.05 45.667 0.00 0.05 0.010 O | | | | 0.05 45.750 0.00 0.05 0.010 O | | | | 0.05 45.833 0.00 0.05 0.010 O | | | | 0.05 45.917 0.00 0.04 0.009 O | | | | 0.04 46.000 0.00 0.04 0.009 O | | | | 0.04 46.083 0.00 0.04 0.009 O | | | | 0.04 46.167 0.00 0.04 0.009 O | | | | 0.04 46.250 0.00 0.04 0.008 O | | | | 0.04 46.333 0.00 0.04 0.008 O | | | | 0.04 46.417 0.00 0.04 0.008 O | | | | 0.04 46.500 0.00 0.04 0.008 O | | | | 0.04 46.583 0.00 0.03 0.007 O | | | | 0.03 46.667 0.00 0.03 0.007 O | | | | 0.03 46.750 0.00 0.03 0.007 O | | | | 0.03 46.833 0.00 0.03 0.007 O | | | | 0.03 46.917 0.00 0.03 0.006 O | | | | 0.03 47.000 0.00 0.03 0.006 O | | | | 0.03 47.083 0.00 0.03 0.006 O | | | | 0.03 47.167 0.00 0.03 0.006 O | | | | 0.03 47.250 0.00 0.03 0.006 O | | | | 0.03 47.333 0.00 0.03 0.005 O | | | | 0.03 47.417 0.00 0.02 0.005 O | | | | 0.02 47.500 0.00 0.02 0.005 O | | | | 0.02 47.583 0.00 0.02 0.005 O | | | | 0.02 47.667 0.00 0.02 0.004 O | | | | 0.02 47.750 0.00 0.01 0.002 O | | | | 0.01 47.833 0.00 0.01 0.001 O | | | | 0.01 47.917 0.00 0.00 0.000 O | | | | 0.00 48.000 0.00 0.00 0.000 O | | | | 0.00 ****************************HYDROGRAPH DATA**************************** Number of intervals = 576 Time interval = 5.0 (Min.) Maximum/Peak flow rate = 7.586 (CFS) Total volume = 5.540 (Ac.Ft) Status of hydrographs being held in storage Stream 1 Stream 2 Stream 3 Stream 4 Stream 5 Peak (CFS) 0.000 0.000 0.000 0.000 0.000 Vol (Ac.Ft) 0.000 0.000 0.000 0.000 0.000 *********************************************************************** -------------------------------------------------------------------- PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX E SUPPORTING DOCUMENTS PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX E.1 SOILS MAP City of Fontana WQMP Handbook September 2016 - 6 - Figure 2-1 Hydrologic Soil Group Hydrologic Soil Group City of Fontana WQMP Handbook 0 1 il•••lli:====:J Miles 2 N A --Receiving Water Hydrologic Soil Group Basin/Dam Unknown i~ ~~City of Fontana Type A -TypeB Type C APPROXIMATE PROJECT LOCATION PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX E.2 NOAA ATLAS 14 DATA 10/15/22, 5:09 PM Precipitation Frequency Data Server https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=34.0522&lon=-117.4735&data=depth&units=english&series=pds 1/4 NOAA Atlas 14, Volume 6, Version 2 Location name: Fontana, California, USA* Latitude: 34.0522°, Longitude: -117.4735° Elevation: 987.62 ft** * source: ESRI Maps ** source: USGS POINT PRECIPITATION FREQUENCY ESTIMATES Sanja Perica, Sarah Dietz, Sarah Heim, Lillian Hiner, Kazungu Maitaria, Deborah Martin, SandraPavlovic, Ishani Roy, Carl Trypaluk, Dale Unruh, Fenglin Yan, Michael Yekta, Tan Zhao, GeoffreyBonnin, Daniel Brewer, Li-Chuan Chen, Tye Parzybok, John Yarchoan NOAA, National Weather Service, Silver Spring, Maryland PF_tabular | PF_graphical | Maps_&_aerials PF tabular PDS-based point precipitation frequency estimates with 90% confidence intervals (in inches)1 Duration Average recurrence interval (years) 1 2 5 10 25 50 100 200 500 1000 5-min 0.103 (0.086‑0.125) 0.136 (0.113‑0.165) 0.179 (0.149‑0.218) 0.216 (0.177‑0.264) 0.266 (0.212‑0.338) 0.306 (0.238‑0.398) 0.348 (0.264‑0.464) 0.393 (0.289‑0.538) 0.455 (0.321‑0.651) 0.505 (0.344‑0.749) 10-min 0.148 (0.124‑0.180) 0.195 (0.162‑0.236) 0.257 (0.213‑0.313) 0.309 (0.254‑0.379) 0.382 (0.303‑0.485) 0.439 (0.342‑0.570) 0.499 (0.379‑0.664) 0.563 (0.415‑0.771) 0.652 (0.460‑0.933) 0.724 (0.493‑1.07) 15-min 0.179 (0.149‑0.217) 0.235 (0.196‑0.286) 0.311 (0.258‑0.378) 0.374 (0.308‑0.458) 0.461 (0.367‑0.586) 0.531 (0.413‑0.689) 0.603 (0.458‑0.803) 0.680 (0.501‑0.933) 0.789 (0.557‑1.13) 0.876 (0.596‑1.30) 30-min 0.269 (0.224‑0.326) 0.353 (0.294‑0.429) 0.466 (0.387‑0.567) 0.561 (0.462‑0.688) 0.692 (0.551‑0.879) 0.797 (0.620‑1.03) 0.906 (0.687‑1.21) 1.02 (0.753‑1.40) 1.18 (0.835‑1.69) 1.31 (0.895‑1.95) 60-min 0.395 (0.329‑0.478) 0.518 (0.432‑0.629) 0.684 (0.568‑0.832) 0.823 (0.677‑1.01) 1.02 (0.808‑1.29) 1.17 (0.909‑1.52) 1.33 (1.01‑1.77) 1.50 (1.10‑2.05) 1.74 (1.23‑2.48) 1.93 (1.31‑2.86) 2-hr 0.587 (0.490‑0.712) 0.762 (0.635‑0.925) 0.991 (0.823‑1.21) 1.18 (0.970‑1.45) 1.44 (1.14‑1.82) 1.63 (1.27‑2.12) 1.84 (1.39‑2.44) 2.05 (1.51‑2.81) 2.34 (1.65‑3.35) 2.57 (1.75‑3.81) 3-hr 0.745 (0.621‑0.902) 0.962 (0.801‑1.17) 1.24 (1.03‑1.51) 1.47 (1.21‑1.81) 1.78 (1.42‑2.26) 2.02 (1.57‑2.62) 2.26 (1.71‑3.01) 2.51 (1.85‑3.44) 2.84 (2.01‑4.07) 3.10 (2.11‑4.60) 6-hr 1.06 (0.881‑1.28) 1.36 (1.14‑1.65) 1.76 (1.46‑2.14) 2.07 (1.70‑2.54) 2.49 (1.98‑3.16) 2.80 (2.18‑3.63) 3.11 (2.36‑4.14) 3.43 (2.53‑4.70) 3.85 (2.72‑5.51) 4.18 (2.84‑6.19) 12-hr 1.39 (1.16‑1.69) 1.81 (1.51‑2.20) 2.34 (1.94‑2.85) 2.76 (2.27‑3.38) 3.30 (2.63‑4.20) 3.71 (2.88‑4.81) 4.11 (3.11‑5.47) 4.50 (3.32‑6.17) 5.02 (3.54‑7.19) 5.41 (3.69‑8.02) 24-hr 1.86 (1.65‑2.15) 2.46 (2.18‑2.84) 3.22 (2.84‑3.72) 3.81 (3.33‑4.44) 4.57 (3.87‑5.51) 5.14 (4.26‑6.32) 5.69 (4.61‑7.17) 6.24 (4.91‑8.07) 6.95 (5.26‑9.37) 7.47 (5.47‑10.4) 2-day 2.25 (1.99‑2.59) 3.04 (2.69‑3.51) 4.04 (3.56‑4.68) 4.84 (4.23‑5.64) 5.88 (4.98‑7.09) 6.66 (5.52‑8.19) 7.43 (6.01‑9.35) 8.20 (6.46‑10.6) 9.21 (6.97‑12.4) 9.96 (7.29‑13.9) 3-day 2.43 (2.15‑2.80) 3.34 (2.96‑3.86) 4.51 (3.98‑5.22) 5.45 (4.76‑6.35) 6.69 (5.67‑8.06) 7.63 (6.33‑9.38) 8.56 (6.94‑10.8) 9.51 (7.49‑12.3) 10.8 (8.15‑14.5) 11.7 (8.58‑16.4) 4-day 2.63 (2.33‑3.03) 3.65 (3.23‑4.21) 4.97 (4.38‑5.75) 6.04 (5.28‑7.04) 7.46 (6.32‑8.99) 8.55 (7.09‑10.5) 9.63 (7.80‑12.1) 10.7 (8.47‑13.9) 12.2 (9.25‑16.5) 13.4 (9.78‑18.6) 7-day 3.01(2.67‑3.47)4.25(3.76‑4.90)5.87(5.17‑6.79)7.19(6.29‑8.38)8.98(7.60‑10.8)10.4(8.59‑12.7)11.7(9.52‑14.8)13.2(10.4‑17.1)15.1(11.4‑20.4)16.6(12.2‑23.2) 10-day 3.26 (2.88‑3.75) 4.63 (4.09‑5.34) 6.45 (5.69‑7.46) 7.94 (6.95‑9.26) 9.99 (8.46‑12.0) 11.6 (9.60‑14.2) 13.2 (10.7‑16.6) 14.9 (11.7‑19.3) 17.2 (13.0‑23.2) 19.0 (13.9‑26.5) 20-day 3.86 (3.42‑4.45) 5.56 (4.92‑6.42) 7.86 (6.93‑9.10) 9.79 (8.56‑11.4) 12.5 (10.6‑15.0) 14.6 (12.1‑18.0) 16.8 (13.6‑21.2) 19.2 (15.1‑24.8) 22.4 (17.0‑30.2) 25.0 (18.3‑34.9) 30-day 4.56 (4.03‑5.25) 6.57 (5.80‑7.58) 9.32 (8.21‑10.8) 11.6 (10.2‑13.6) 14.9 (12.7‑18.0) 17.6 (14.6‑21.6) 20.4 (16.5‑25.7) 23.3 (18.4‑30.2) 27.5 (20.8‑37.1) 30.9 (22.6‑43.1) 45-day 5.39 (4.78‑6.22) 7.70 (6.81‑8.89) 10.9 (9.62‑12.6) 13.7 (11.9‑15.9) 17.6 (14.9‑21.2) 20.8 (17.3‑25.6) 24.2 (19.6‑30.5) 27.9 (22.0‑36.1) 33.2 (25.1‑44.7) 37.5 (27.4‑52.3) 60-day 6.34 (5.62‑7.31) 8.93 (7.90‑10.3) 12.6 (11.1‑14.5) 15.7 (13.7‑18.3) 20.3 (17.1‑24.4) 24.0 (19.9‑29.5) 28.0 (22.7‑35.3) 32.4 (25.5‑41.9) 38.6 (29.2‑52.1) 43.8 (32.1‑61.1) 1 Precipitation frequency (PF) estimates in this table are based on frequency analysis of partial duration series (PDS). Numbers in parenthesis are PF estimates at lower and upper bounds of the 90% confidence interval. The probability that precipitation frequency estimates (for a given duration and average recurrence interval) will be greater than the upper bound (or less than the lower bound) is 5%. Estimates at upper bounds are not checked against probable maximum precipitation (PMP) estimates and may be higher than currently valid PMP values. Please refer to NOAA Atlas 14 document for more information. Back to Top PF graphical 10/15/22, 5:09 PM Precipitation Frequency Data Server https://hdsc.nws.noaa.gov/hdsc/pfds/pfds_printpage.html?lat=34.0522&lon=-117.4735&data=depth&units=english&series=pds 2/4 Back to Top Maps & aerials Small scale terrain PRELIMIANRY HYDROLOGY REPORT JAN-2023 WESTLAND GROUP, INC. APPENDIX F INFILTRATION REPORT 22885 Savi Ranch Parkway Suite E Yorba Linda California 92887 voice: (714) 685-1115 fax: (714) 685-1118 www.socalgeo.com June 8, 2016 ProLogis 2817 East Cedar Street, Suite 200 Ontario, California 91761 Attention: Mr. Scott Mulkay Project No.:15G177-2 Subject:Results of Infiltration Testing Proposed Commercial/Industrial Building 11115 Hemlock Avenue Fontana, California Reference:Geotechnical Investigation, Proposed Commercial/Industrial Building, 11115 Hemlock Avenue, Fontana, California, prepared for ProLogis by Southern California Geotechnical, Inc. (SCG), SCG Project No. 15G177-1, dated September 4, 2015. Gentlemen: In accordance with your request, we have conducted infiltration testing at the subject site. We are pleased to present this report summarizing the results of the infiltration testing and our design recommendations. Scope of Services The scope of services performed for this project was in general accordance with our Proposal No. 15P322-2, dated September 16, 2015. The scope of services included surface reconnaissance, subsurface exploration, field testing, and engineering analysis to determine the infiltration rates of the onsite soils. The infiltration testing was performed in general accordance with the Technical Guidance Document for Water Quality Management Plans prepared for the County of San Bernardino Areawide Stormwater Program dated June 7, 2013. The San Bernardino County standards defer to guidelines published by Riverside County Department of Environmental Health (RCDEH). Site and Project Description The subject site is located on the east side of Hemlock Avenue, approximately 750 feet north of the intersection of Hemlock Avenue and Jurupa Avenue, at the street address of 11115 Hemlock Avenue in Fontana, California. The site is bounded to the north by an existing commercial/industrial development, to the east by Beech Avenue, to the south by an existing commercial/industrial building, and to the west by Hemlock Avenue. The general location of the site is illustrated on the Site Location Map, included as Plate 1 of this report. The site consists of a rectangular shaped parcel, 37.21± acres in size. The site is currently utilized as a mobile trailer storage yard, occupied by Modular Space Corporation. Two buildings are present in the west-central area of the site. These buildings are single-story structures, Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 2 which are assumed to be supported on shallow foundations with concrete slab-on-grade floors. Ground surface cover throughout the majority of the site consists of open graded gravel with areas of asphaltic concrete pavements surrounding the buildings and near the northwest corner of the site. The easternmost of the two buildings is immediately surrounded by Portland cement concrete. Landscape planters are present along the northern side of the westernmost building, and along the east and west property lines. Detailed topographic information was not available at the time of this report. Based on visual observations, site grades appear to dip downwards toward the southwest at an estimated gradient of approximately 1 to 2± percent. Proposed Development A preliminary site plan, prepared by RGA, was provided to our office. Based on this plan, the site will be developed with one (1) commercial/industrial building. The proposed building will be located in the central portion of the site and will possess a footprint area of 775,200± ft2. The building will be constructed in a cross-deck configuration with dock high doors on the east and west sides. We expect that the building will be surrounded by asphaltic concrete pavements in the parking and drive areas and Portland cement concrete pavements in the truck court and loading dock areas. It is assumed that several landscape planters and concrete flatwork will be included throughout the site. We understand the site will utilize an on-site storm water disposal system to dispose of storm water. Based on the infiltration test location plan provided to our office by the project civil engineer, the storm water disposal system will consist of two (2) below grade chamber systems and two (2) infiltration basins. One below grade chamber system will be located in the southeast area of the subject site and the other chamber system will be located in the southwest area of the site. One infiltration basin will be located in the southeast corner of the site and the other basin will be located in the southwest corner. The bottom of the proposed below grade chamber systems will be 8 to 12± feet below the existing site grades and the bottom of the infiltration basins will be 6 to 10± feet below the existing grades. Previous Studies Southern California Geotechnical, Inc. (SCG) previously performed a geotechnical investigation at the subject site, which is referenced above. As a part of this study, a total of ten (10) borings were advanced to depths of 5 to 30± feet below the existing site grades. Boring No. B-1 was drilled through existing asphaltic concrete pavements. The pavement section at Boring No. B-1 consisted of 6½± inches of asphaltic concrete with no discernable underlying layer of aggregate base. The remaining borings were drilled in areas paved with crushed miscellaneous base (CMB). At Boring Nos. B-2 through B-10, the ground surface cover consisted of a 3 to 4-inch thick CMB layer. Artificial fill soils were encountered beneath the pavements at Boring No. B-1, and beneath the CMB layer at Boring Nos. B-2 and B-8. The artificial fill soils extend to depths of 2½± feet below the existing site grades and generally consisted of medium dense to dense fine sands with varying amounts of fine to coarse gravel, medium to coarse sands, and silt. Native alluvium was encountered beneath pavements and/or the artificial fill soils at all of the boring locations, extending to at least the maximum depth explored of 30± feet below the existing site grades. The alluvium generally consisted of medium dense to very dense fine sands, silty fine Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 3 sands, fine to coarse sands and fine sandy silts with varying amounts of silt, fine to coarse gravel and cobbles. Boring No. B-7 also encountered a layer of very dense gravelly fine to coarse sands between depths of 17 and 25± feet. Groundwater was not encountered at any of the borings. Subsurface Exploration Scope of Exploration The subsurface exploration conducted for this project consisted of a total of six (6) infiltration test borings. The borings were advanced to depths of 8 to 12± feet below existing site grades. The borings were advanced using a truck-mounted drilling rig, equipped with 8-inch diameter hollow stem augers and were logged during drilling by a member of our staff. The approximate locations of the infiltration test borings (identified as I-1 through I-6) are indicated on the Infiltration Test Location Plan, enclosed as Plate 2 of this report. Upon the completion of each infiltration boring, the bottom of the test holes were covered with 2± inches of clean ¾-inch gravel. A sufficient length of 3-inch-diameter perforated PVC casing was then placed into each test hole so that the PVC casing extended from the bottom of the test hole to the ground surface. Clean ¾-inch gravel was then installed in the annulus surrounding the PVC casing. Geotechnical Conditions Ground surface cover at all six (6) of the infiltration boring locations consisted of 1 to 3± inches of open graded gravel. Native alluvium was encountered beneath the open graded gravel layer at all of the infiltration boring locations, extending to at least the maximum explored depth of 12± feet below existing grades. The alluvial soils generally consist of loose to dense fine to medium sands, silty fine to medium sands, and gravelly fine to coarse sands with varying amounts of coarse sand, fine to coarse gravel, silt, and cobble content. The Boring Logs, which illustrate the conditions encountered at the boring locations, are included with this report. Infiltration Testing We understand that the results of the testing will be used to prepare a preliminary design for the proposed storm water infiltration system that will be used to dispose of storm water at the subject site. As previously stated, the infiltration testing was performed in general accordance with Technical Guidance Document for Water Quality Management Plans, prepared for the County of San Bernardino Areawide Stormwater Program, dated June 7, 2013. Pre-soaking In accordance with the infiltration county standards for sandy soils, the infiltration test borings were pre-soaked 2 hours prior to infiltration testing or until all of the water had percolated through each test hole. The pre-soaking process consisted of filling each test boring by inverting a full 5 gallon bottle of clear water supported over the hole so that the water flow into the hole holds constant at a level at least 5 times the hole’s radius above the gravel at the bottom of the hole. Pre-soaking was completed after all of the water had percolated through the test hole. Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 4 Infiltration Testing Following the pre-soaking process of the infiltration test borings, SCG performed the infiltration testing. Each test hole was filled with water to a depth of at least 5 times the hole’s radius above the gravel at the bottom of the test hole prior to each test interval. In accordance with the San Bernardino County guidelines, since “sandy soils” were encountered at the bottom of all the infiltration test borings (where 6 inches of water infiltrated into the surrounding soils for two consecutive 25-minute readings), readings were taken at an interval of 10 minutes for a total of 1 hour at the test location. After each reading, water was added to the boring so that the depth of the water was at least 5 times the radius of the hole. The water level readings are presented on the spreadsheets enclosed with this report. The infiltration rates for each of the timed intervals are also tabulated on the spreadsheets. The infiltration rates for the tests are tabulated in inches per hour. In accordance with typically accepted practice, it is recommended that the most conservative reading from the latter part of the infiltration test be used for design. The rate is summarized below: Infiltration Test No.Soil Description Infiltration Rate (inches/hour) I-1 Fine to medium Sand, little Silt, trace coarse Sand, little fine Gravel 2.1 I-2 Silty fine to medium Sand, trace coarse Sand, trace fine Gravel 3.6 I-3 Silty fine Sand, trace to little medium to coarse Sand, trace fine Gravel 3.6 I-4 Gravelly fine to coarse Sand, trace Silt 6.4 I-5 Silty fine to medium Sand, little coarse Sand, trace fine Gravel 1.2 I-6 Fine to medium Sand, little coarse Sand, little Silt, little fine Gravel 2.8 Laboratory Testing Grain Size Analysis The grain size distribution of selected soils taken from the base of each infiltration test boring has been determined using a range of wire mesh screens. The analysis was performed in general accordance with ASTM D-422 and/or ASTM D-1140. The weight of the portion of the sample retained on each screen is recorded and the percentage finer or coarser of the total weight is calculated. The results of the analysis are presented at the end of this report. Design Recommendations A total of six (6) infiltration tests were performed at the subject site. As noted above, the infiltration rates range from 1.2 to 6.4 inches per hour. The primary factors affecting the infiltration rates are the silt content and the varying relative densities of the encountered soils, which vary at different depths and locations at the subject site. Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 5 Based on the infiltration test results, we recommend an average infiltration rate of 2 inches per hour be used in the design of the proposed below grade chamber system and proposed infiltration basins. We recommend that a representative from the geotechnical engineer be on-site during the construction of the proposed infiltration chambers and basins to identify the soil classification at the base of each infiltration system. It should be confirmed that the soils at the base of the proposed infiltration system correspond with those presented in this report to ensure that the performance of each system will be consistent with the rates reported herein. The design of the proposed infiltration system should be performed by the project civil engineer, in accordance with the city of Fontana and/or San Bernardino County guidelines.It is recommended that the project civil engineer apply an appropriate factor of safety.It is recommended that the system be constructed so as to facilitate removal of silt and clay, or other deleterious materials from any water that may enter the systems. The presence of such materials would decrease the effective infiltration rates.The infiltration rates recommended above are based on the assumption that only clean water will be introduced to the subsurface profile. Any fines, debris, or organic materials could significantly impact the infiltration rate.It should be noted that the recommended infiltration rates are based on infiltration testing at six (6) discrete locations and that the overall infiltration rate of the infiltration system could vary considerably. Infiltration versus Permeability Infiltration rates are based on unsaturated flow. As water is introduced into soils by infiltration, the soils become saturated and the wetting front advances from the unsaturated zone to the saturated zone. Once the soils become saturated, infiltration rates become zero, and water can only move through soils by hydraulic conductivity at a rate determined by pressure head and soil permeability. The infiltration rates presented herein was determined in accordance with the San Bernardino County guidelines, and is considered valid for the time and place of the actual test. Changes in soil moisture content will affect the infiltration rate. Infiltration rates should be expected to decrease until the soils become saturated. Soil permeability values will then govern groundwater movement. Permeability values may be on the order of 10 to 20 times less than infiltration rates. The system designer should incorporate adequate factors of safety and allow for overflow design into appropriate traditional storm drain systems, which would transport storm water off-site. Location of Infiltration System The use of on-site storm water infiltration systems carries a risk of creating adverse geotechnical conditions. Increasing the moisture content of the soil can cause the soil to lose internal shear strength and increase its compressibility, resulting in a change in the designed engineering properties. Overlying structures and pavements in the infiltration area could potentially be damaged due to saturation of subgrade soils. If possible, the proposed infiltration system for this site should be located at least 25 feet away from any structures, including retaining walls. Even with this provision of locating the infiltration system at least 25 feet from the buildings, it is possible that infiltrating water into the subsurface soils could have an adverse effect on the proposed or existing structures. It should also be noted that utility trenches which happen to Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 6 collect storm water can also serve as conduits to transmit storm water toward the structure, depending on the slope of the utility trench. Therefore, consideration should also be given to the proposed locations of underground utilities which may pass near the proposed infiltration system. General Comments This report has been prepared as an instrument of service for use by the client in order to aid in the evaluation of this property and to assist the architects and engineers in the design and preparation of the project plans and specifications. This report may be provided to the contractor(s) and other design consultants to disclose information relative to the project. However, this report is not intended to be utilized as a specification in and of itself, without appropriate interpretation by the project architect, structural engineer, and/or civil engineer. The design of the proposed storm water infiltration systems are the responsibility of the civil engineer. The role of the geotechnical engineer is limited to determination of infiltration rate only. By using the design infiltration rate contained herein, the civil engineer agrees to indemnify, defend, and hold harmless the geotechnical engineer for all aspects of the design and performance of the proposed storm water infiltration system. The reproduction and distribution of this report must be authorized by the client and Southern California Geotechnical, Inc. Furthermore, any reliance on this report by an unauthorized third party is at such party’s sole risk, and we accept no responsibility for damage or loss which may occur. The analysis of this site was based on a subsurface profile interpolated from limited discrete soil samples. While the materials encountered in the project area are considered to be representative of the total area, some variations should be expected between boring locations and testing depths. If the conditions encountered during construction vary significantly from those detailed herein, we should be contacted immediately to determine if the conditions alter the recommendations contained herein. This report has been based on assumed or provided characteristics of the proposed development. It is recommended that the owner, client, architect, structural engineer, and civil engineer carefully review these assumptions to ensure that they are consistent with the characteristics of the proposed development. If discrepancies exist, they should be brought to our attention to verify that they do not affect the conclusions and recommendations contained herein. We also recommend that the project plans and specifications be submitted to our office for review to verify that our recommendations have been correctly interpreted. The analysis, conclusions, and recommendations contained within this report have been promulgated in accordance with generally accepted professional geotechnical engineering practice. No other warranty is implied or expressed. Proposed Commercial/Industrial Building – Fontana, CA Project No. 15G177-2Page 7 Closure We sincerely appreciate the opportunity to be of service on this project. We look forward to providing additional consulting services during the course of the project. If we may be of further assistance in any manner, please contact our office. Respectfully Submitted, SOUTHERN CALIFORNIA GEOTECHNICAL, INC. Scott McCann Staff Scientist John A. Seminara, GE 2294 Principal Engineer Distribution: (1) Addressee Enclosures: Plate 1 - Site Location Map Plate 2 - Infiltration Test Location Plan Boring Log Legend and Logs (8 pages) Infiltration Test Results Spreadsheet (6 pages) Grain Size Distribution Graph (6 pages) SITE PROPOSED COMMERCIAL/INDUSTRIAL BUILDING SCALE: 1" = 2400' DRAWN: JLH CHKD: JAS SCG PROJECT 15G177-2 PLATE 1 SITE LOCATION MAP FONTANA, CALIFORNIA SOURCE: SAN BERNARDINO COUNTY THOMAS GUIDE, 2013 B-7B-6B-8B-5B-4B-9B-10B-3B-1B-2I-1I-2I-3I-4I-5I-6NOTE: BASE MAP PREPARED BY RGASCALE: 1" = 150'DRAWN: SAMCHKD: JASPLATE 2SCG PROJECT15G177-2FONTANA, CALIFORNIAPROPOSED COMMERCIAL/INDUSTRIAL BUILDINGINFILTRATION TEST LOCATION PLANAPPROXIMATE INFILTRATION TEST LOCATION GEOTECHNICAL LEGEND0146*SoCalGeoEXISTING BUILDING TO BE DEMOLISHEDAPPROXIMATE BORING LOCATION FROM PREVIOUS STUDY (SCG PROJECT NO. 15G177-1) BORING LOG LEGEND SAMPLE TYPE GRAPHICAL SYMBOL SAMPLE DESCRIPTION AUGER SAMPLE COLLECTED FROM AUGER CUTTINGS, NO FIELD MEASUREMENT OF SOIL STRENGTH. (DISTURBED) CORE ROCK CORE SAMPLE: TYPICALLY TAKEN WITH A DIAMOND-TIPPED CORE BARREL. TYPICALLY USED ONLY IN HIGHLY CONSOLIDATED BEDROCK. GRAB 1 SOIL SAMPLE TAKEN WITH NO SPECIALIZED EQUIPMENT, SUCH AS FROM A STOCKPILE OR THE GROUND SURFACE. (DISTURBED) CS CALIFORNIA SAMPLER: 2-1/2 INCH I.D. SPLIT BARREL SAMPLER, LINED WITH 1-INCH HIGH BRASS RINGS. DRIVEN WITH SPT HAMMER. (RELATIVELY UNDISTURBED) NSR NO RECOVERY: THE SAMPLING ATTEMPT DID NOT RESULT IN RECOVERY OF ANY SIGNIFICANT SOIL OR ROCK MATERIAL. SPT STANDARD PENETRATION TEST: SAMPLER IS A 1.4 INCH INSIDE DIAMETER SPLIT BARREL, DRIVEN 18 INCHES WITH THE SPT HAMMER. (DISTURBED) SH SHELBY TUBE: TAKEN WITH A THIN WALL SAMPLE TUBE, PUSHED INTO THE SOIL AND THEN EXTRACTED. (UNDISTURBED) VANE VANE SHEAR TEST: SOIL STRENGTH OBTAINED USING A 4 BLADED SHEAR DEVICE. TYPICALLY USED IN SOFT CLAYS-NO SAMPLE RECOVERED. COLUMN DESCRIPTIONS DEPTH: Distance in feet below the ground surface. SAMPLE: Sample Type as depicted above. BLOW COUNT: Number of blows required to advance the sampler 12 inches using a 140 lb hammer with a 30-inch drop. 50/3” indicates penetration refusal (>50 blows) at 3 inches. WH indicates that the weight of the hammer was sufficient to push the sampler 6 inches or more. POCKET PEN.: Approximate shear strength of a cohesive soil sample as measured by pocket penetrometer. GRAPHIC LOG: Graphic Soil Symbol as depicted on the following page. DRY DENSITY: Dry density of an undisturbed or relatively undisturbed sample in lbs/ft3. MOISTURE CONTENT: Moisture content of a soil sample, expressed as a percentage of the dry weight. LIQUID LIMIT: The moisture content above which a soil behaves as a liquid. PLASTIC LIMIT: The moisture content above which a soil behaves as a plastic. PASSING #200 SIEVE: The percentage of the sample finer than the #200 standard sieve. UNCONFINED SHEAR: The shear strength of a cohesive soil sample, as measured in the unconfined state. SM SP COARSE GRAINEDSOILS SW TYPICAL DESCRIPTIONS WELL-GRADED GRAVELS, GRAVEL - SAND MIXTURES, LITTLE OR NOFINES SILTY GRAVELS, GRAVEL - SAND - SILT MIXTURES LETTERGRAPH POORLY-GRADED GRAVELS, GRAVEL - SAND MIXTURES, LITTLEOR NO FINES GC GM GP GW POORLY-GRADED SANDS, GRAVELLY SAND, LITTLE OR NOFINES SILTSAND CLAYS MORE THAN 50% OF MATERIAL ISLARGER THANNO. 200 SIEVE SIZE MORE THAN 50%OF MATERIAL IS SMALLER THANNO. 200 SIEVESIZE MORE THAN 50%OF COARSEFRACTION PASSING ON NO.4 SIEVE MORE THAN 50%OF COARSE FRACTIONRETAINED ON NO.4 SIEVE CLAYEY GRAVELS, GRAVEL - SAND - CLAY MIXTURES FINEGRAINED SOILS SYMBOLSMAJOR DIVISIONS SOIL CLASSIFICATION CHART PT OH CH MH OL CL ML CLEAN SANDS SC SILTY SANDS, SAND - SILTMIXTURES CLAYEY SANDS, SAND - CLAY MIXTURES INORGANIC SILTS AND VERY FINESANDS, ROCK FLOUR, SILTY OR CLAYEY FINE SANDS OR CLAYEYSILTS WITH SLIGHT PLASTICITY INORGANIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLYCLAYS, SANDY CLAYS, SILTY CLAYS,LEAN CLAYS ORGANIC SILTS AND ORGANICSILTY CLAYS OF LOW PLASTICITY INORGANIC SILTS, MICACEOUS OR DIATOMACEOUS FINE SAND ORSILTY SOILS INORGANIC CLAYS OF HIGH PLASTICITY ORGANIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGANIC SILTS PEAT, HUMUS, SWAMP SOILS WITHHIGH ORGANIC CONTENTS SILTS AND CLAYS GRAVELS WITH FINES SAND AND SANDY SOILS (LITTLE OR NO FINES) SANDS WITH FINES LIQUID LIMITLESS THAN 50 LIQUID LIMIT GREATER THAN 50 HIGHLY ORGANIC SOILS NOTE: DUAL SYMBOLS ARE USED TO INDICATE BORDERLINE SOIL CLASSIFICATIONS GRAVEL AND GRAVELLYSOILS (APPRECIABLE AMOUNT OF FINES) (APPRECIABLE AMOUNT OF FINES) (LITTLE OR NO FINES) WELL-GRADED SANDS, GRAVELLYSANDS, LITTLE OR NO FINES CLEAN GRAVELS 21 10 31 34 43 3± inches Open-graded Gravel ALLUVIUM: Light Gray fine Sand, trace Silt, trace medium Sand,trace fine Gravel, medium dense-dry to damp Light Gray Brown fine Sand, little Silt, trace medium to coarse Sand, loose to medium dense-damp to moist Light Gray Brown Silty fine Sand, trace coarse Sand, dense-damp Light Gray fine to medium Sand, trace to little Silt, little coarseSand, dense-dry to damp Light Gray fine to medium Sand, trace coarse Sand, little fineGravel, little Silt, dense-dry to damp Boring Terminated at 12' 2 7 6 2 3 2 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-1 PLATE I-1 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 10 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 33 44 18 27 2½± inches Open-graded Gravel ALLUVIUM: Light Gray fine to medium Sand, little Silt, littlecoarse Sand, occasional Cobbles, dense-dry to damp Light Gray Silty fine to medium Sand, little coarse Sand, some fine to coarse Gravel, occasional Cobbles, dense-dry to damp Light Gray Brown fine Sand, trace coarse Sand, little Silt, mediumdense-damp Light Brown Silty fine to medium Sand, trace coarse Sand, trace fine Gravel, medium dense-damp Boring Terminated at 10' 2 2 5 3 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-2 PLATE I-2 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 10 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 19 12 16 3± inches Open-graded Gravel Gray to Gray Brown fine to medium Sand, trace Silt, little coarseSand, medium dense-dry to damp @ 3½ feet, trace fine Gravel ALLUVIUM: Light Brown Silty fine Sand, trace to little medium tocoarse Sand, trace fine Gravel, medium dense-damp Boring Terminated at 8' 2 2 5 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-3 PLATE I-3 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 24 23 22 13 31 1± inch Open-graded Gravel ALLUVIUM: Light Gray Brown fine to medium Sand, little Silt,some coarse Sand, little fine to coarse Gravel, medium dense-dryto damp Light Brown fine to coarse Sand, trace Silt, some fine to coarse Gravel, medium dense-dry to damp Light Gray Brown fine to medium Sand, trace Silt, little coarseSand, little fine to corase Gravel, medium dense-dry to damp Gray Brown Silty fine Sand, trace medium Sand, medium dense-moist Gray Brown Silty fine to medium Sand, little coarse Sand, trace fine Gravel, dense-damp to moist Light Gray Gravelly fine to coarse Sand, trace Silt, occasionalCobbles, dense-dry to damp Boring Terminated at 12' 2 2 2 10 72 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-4 PLATE I-4 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 10 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 9 13 15 49 2½± inches Open-graded Gravel ALLUVIUM: Brown Silty fine Sand, little medium Sand,loose-damp to moist Brown Silty fine to medium Sand, little coarse Sand, trace fine Gravel, medium dense-damp to moist Brown fine Sand, trace coarse Sand, little medium Sand, little Silt,medium dense-damp to moist Brown Silty fine to medium Sand, little coarse Sand, trace fine Gravel, occasional Cobbles, dense-damp to moist Boring Terminated at 10' 6 7 7 6 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-5 PLATE I-5 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 10 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 13 8 21 3± inches Open-graded Gravel ALLUVIUM: Brown Silty fine Sand, trace fine Gravel, littlemedium to coarse Sand, medium dense-damp to moist Gray Brown Silty fine Sand, trace medium Sand, loose-moist Light Gray fine to medium Sand, little coarse Sand, little Silt, littlefine Gravel, medium dense-dry to damp Boring Terminated at 8' 6 9 2 JOB NO.: 15G177-2 PROJECT: C/I Development LOCATION: Fontana, California BORING NO. I-6 PLATE I-6 DRILLING DATE: 5/20/16 DRILLING METHOD: Hollow Stem Auger LOGGED BY: Jason Hiskey FIELD RESULTS LABORATORY RESULTS COMMENTSSURFACE ELEVATION: MSL WATER DEPTH: CAVE DEPTH: READING TAKEN: 5 GRAPHIC LOGPASSING#200 SIEVE (%)TEST BORING LOG DESCRIPTION POCKET PEN.(TSF)UNCONFINEDSHEAR (TSF)DRY DENSITY(PCF)DEPTH (FEET)MOISTURECONTENT (%)LIQUIDLIMITPLASTICLIMITSAMPLEBLOW COUNTTBL 15G177-2.GPJ SOCALGEO.GDT 6/8/16 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 9.4 (ft) Infiltration Test Hole I-1 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 12:40 PM 7.42 Final 12:56 PM 7.95 Initial 12:57 PM 7.26 Final 1:13 PM 7.82 Initial 1:25 PM 7.30 Final 1:35 PM 7.67 Initial 1:36 PM 7.28 Final 1:46 PM 7.64 Initial 1:47 PM 7.35 Final 1:57 PM 7.71 Initial 1:58 PM 7.39 Final 2:08 PM 7.75 Initial 2:09 PM 7.29 Final 2:19 PM 7.66 Initial 2:20 PM 7.33 Final 2:30 PM 7.69 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 2 Havg = Average Head Height over the time interval Pre-SatInfiltrationTesting0.53 1.72 SM 2.11 1 10.0 0.37 1.92 2.13 P2 16.0 0.56 1.86 2.07 Proposed C/I Building Fontana, CA 15G177-2 P1 16.0 3 10.0 0.36 1.87 2.12 5 10.0 0.37 1.93 2.12 2 10.0 0.36 1.94 2.05 6 10.0 0.36 1.89 2.10 4 10.0 0.36 1.83 2.16 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-1 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 7.8 (ft) Infiltration Test Hole I-2 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 12:45 PM 5.52 Final 12:59 PM 6.68 Initial 1:00 PM 5.69 Final 1:14 PM 6.61 Initial 1:29 PM 5.48 Final 1:39 PM 6.02 Initial 1:40 PM 5.69 Final 1:50 PM 6.29 Initial 1:51 PM 5.66 Final 2:01 PM 6.23 Initial 2:02 PM 5.71 Final 2:12 PM 6.27 Initial 2:13 PM 5.75 Final 2:23 PM 6.31 Initial 2:24 PM 5.83 Final 2:34 PM 6.39 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 0.67 Havg = Average Head Height over the time interval 6 10.0 0.56 1.72 3.56 4 10.0 0.56 1.84 3.35 5 10.0 0.56 1.80 3.42 3.59 3 10.0 0.57 1.89 3.31 1 10.0 0.54 2.08 2.88 InfiltrationTesting2 10.0 0.60 1.84 Pre-SatP2 14.0 0.92 1.68 4.27 Proposed C/I Building Fontana, CA 15G177-2 SM P1 14.0 1.16 1.73 5.24 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-2 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 6.9 (ft) Infiltration Test Hole I-3 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 12:50 PM 4.74 Final 1:03 PM 5.50 Initial 1:04 PM 5.11 Final 1:17 PM 5.94 Initial 1:32 PM 4.70 Final 1:42 PM 5.33 Initial 1:43 PM 4.64 Final 1:53 PM 5.28 Initial 1:54 PM 4.75 Final 2:04 PM 5.35 Initial 2:05 PM 4.83 Final 2:15 PM 5.42 Initial 2:16 PM 4.85 Final 2:26 PM 5.42 Initial 2:27 PM 4.81 Final 2:37 PM 5.39 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 0.83 Havg = Average Head Height over the time interval 6 10.0 0.58 1.77 3.59 4 10.0 0.59 1.75 3.70 5 10.0 0.57 1.74 3.60 3.70 3 10.0 0.60 1.82 3.62 1 10.0 0.63 1.86 3.74 InfiltrationTesting2 10.0 0.64 1.91 Pre-SatP2 13.0 0.83 1.35 5.07 Proposed C/I Building Fontana, CA 15G177-2 SM P1 13.0 0.76 1.75 3.66 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-3 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 9.8 (ft) Infiltration Test Hole I-4 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 8:15 AM 7.70 Final 8:22 AM 8.46 Initial 8:23 AM 7.70 Final 8:30 AM 8.42 Initial 8:31 AM 7.74 Final 8:41 AM 8.87 Initial 8:42 AM 7.76 Final 8:52 AM 8.88 Initial 8:53 AM 7.70 Final 9:03 AM 8.75 Initial 9:04 AM 7.69 Final 9:14 AM 8.71 Initial 9:15 AM 7.70 Final 9:25 AM 8.72 Initial 9:26 AM 7.65 Final 9:36 AM 8.63 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 0 Havg = Average Head Height over the time interval 6 10.0 0.98 1.66 6.44 4 10.0 1.02 1.60 6.93 5 10.0 1.02 1.59 6.97 8.16 3 10.0 1.05 1.58 7.23 1 10.0 1.13 1.50 8.16 InfiltrationTesting2 10.0 1.12 1.48 Pre-SatP2 7.0 0.72 1.74 6.47 Proposed C/I Building Fontana, CA 15G177-2 SM P1 7.0 0.76 1.72 6.91 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-4 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 8.0 (ft) Infiltration Test Hole I-5 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 10:40 AM 5.48 Final 10:58 AM 6.00 Initial 10:59 AM 5.97 Final 11:24 AM 6.47 Initial 11:25 AM 5.98 Final 11:35 AM 8.20 Initial 11:36 AM 5.97 Final 11:46 AM 6.19 Initial 11:47 AM 5.97 Final 11:57 AM 6.19 Initial 11:58 AM 5.94 Final 12:08 PM 6.17 Initial 12:09 PM 6.01 Final 12:19 PM 6.22 Initial 12:20 PM 6.02 Final 12:30 PM 6.23 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 0.67 Havg = Average Head Height over the time interval 6 10.0 0.21 1.91 1.22 4 10.0 0.23 1.98 1.29 5 10.0 0.21 1.92 1.21 1.25 3 10.0 0.22 1.95 1.25 1 10.0 2.22 0.94 24.07 InfiltrationTesting2 10.0 0.22 1.95 Pre-SatP2 25.0 0.50 1.81 1.21 Proposed C/I Building Fontana, CA 15G177-2 SM P1 18.0 0.52 2.29 1.41 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-5 INFILTRATION CALCULATIONS Project Name Project Location Project Number Engineer Test Hole Radius 4 (in) Test Depth 6.7 (ft) Infiltration Test Hole I-6 IntervalNumberTimeTimeInterval(min)WaterDepth(ft)ChangeinWaterLevel(ft)AverageHeadHeight(ft)InfiltrationRateQ(in/hr)Initial 10:50 AM 4.20 Final 11:04 AM 4.93 Initial 11:05 AM 4.50 Final 11:19 AM 5.19 Initial 11:30 AM 4.67 Final 11:40 AM 5.16 Initial 11:41 AM 4.49 Final 11:51 AM 5.00 Initial 11:52 AM 4.63 Final 12:02 PM 5.10 Initial 12:03 PM 4.61 Final 12:13 PM 5.07 Initial 12:14 PM 4.66 Final 12:24 PM 5.11 Initial 12:25 PM 4.67 Final 12:35 PM 5.12 Per County Standards, Infiltration Rate calculated as follows: Where: Q = Infiltration Rate (in inches per hour) ∆H =Change in Height (Water Level) over the time interval r = Test Hole (Borehole) Radius ∆t =Time Interval H above GS= 1.33 Havg = Average Head Height over the time interval 6 10.0 0.45 1.78 2.78 4 10.0 0.46 1.83 2.76 5 10.0 0.45 1.79 2.77 2.93 3 10.0 0.47 1.81 2.86 1 10.0 0.49 1.76 3.06 InfiltrationTesting2 10.0 0.51 1.93 Pre-SatP2 14.0 0.69 1.83 2.97 Proposed C/I Building Fontana, CA 15G177-2 SM P1 14.0 0.73 2.11 2.75 )2Ht(r H(60r)Q avg+∆ ∆= 15G177-2 Infiltration Test No. I-6 Sample Description I-1 @ 9.5 feet Soil Classification Light Gray Brown fine to medium Sand, little Silt, trace coarse Sand, little fine Gravel Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-1 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200 Sample Description I-2 @ 7 feet Soil Classification Light Brown Silty fine to medium Sand, trace coarse Sand, trace fine Gravel Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-2 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200 Sample Description I-3 @ 9.5 feet Soil Classification Light Brown Silty fine Sand, trace to little medium to coarse Sand, trace fine Gravel Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-3 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200 Sample Description I-4 @ 10 feet Soil Classification Light Gray Gravelly fine to coarse Sand, trace Silt Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-4 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200 Sample Description I-5 @ 8 feet Soil Classification Brown Silty fine to medium Sand, little coarse Sand, trace fine Gravel Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-5 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200 Sample Description I-6 @ 6.5 feet Soil Classification Light Gray fine to medium Sand, little coarse Sand, little Silt, little fine Gravel Proposed Commercial/Industrial Building Fontana, California Project No. 15G177-2 PLATE C-6 0 10 20 30 40 50 60 70 80 90 100 0.0010.010.1110100PercentPassingbyWeight Grain Size in Millimeters Grain Size Distribution Sieve Analysis Hydrometer Analysis US Standard Sieve Sizes Coarse Gravel Fine Gravel Crs. Sand Med. Sand Fine Sand Fines (Silt and Clay) 2 1 3/4 1/2 3/8 1/4 #4 #8 #10 #16 #20 #30 #40 #50 #100 #200