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Empire Center Lines A B & C
�Q hY o-j Sierrx MASTER HYDROLOGY STUDY FOR EMPIRE CENTER LINES A, B & C FULLY DEVELOPED CONDITION 11 •INTERIM CONDITION • PREPARED BY: HALL & FOREMAN, INC. 3170 ReDHILL AVENUE COSTA MESA, CA, 92626-3428 f7147 641-8777 AAN 2 8 1992 DATE 1 INDEX SECTION ITEM I. INTRODUCTION 1 Project Site Purpose Description of Watershed Methodology Discussion (( Rational Method t II. EXHIBITS 11 Project Location Street Capacity Charts Isohyetal Map Soil Map Rainfall Intensity Curves Infiltration Rates Time of Concentration Nomograph 11 III. HYDROLOGY CALCULATIONS Line "A" - 100 -year - Fully Developed Interim Line "B" - 100 -year - Fully Developed 25 -year - Fully Developed Line "C" - 100 -year - Fully Developed 25 -year - Fully Developed (at north of line "A ") Catch Basin No. C9, C10, A35 & A36 - Fully Developed Line "C" - 100 -year (from Jurupa Ave. to Line "A ") Jurupa - 100 -year - Fully Developed Line "A6" - 25 -year - Fully Developed Calculation for ( Q100 - Q25 IV. HYDROLOGY MAPS Fully developed Hydrology Map Interim Hydrology Map 1 Hydraulic Flow Calculation JOB #4013 42,202 REPRT4 1 1 1 I) INTRODUCTION PROJECT SITE II The Empire Center project site is located in the southwest portion of San Bernardino County, in the City of Fontana, The project site is generally bounded by Sierra Avenue on the west side, Jurupa Avenue on the south side, Tamarind Avenue on the east side, and the I -10 Freeway on the north side. li PURPOSE The purpose of this Hydrology Study is to determine the run -offs for 100 -year and 25 -year rain fall return frequencies II for the proposed development of Empire Center. DESCRIPTION OF WATERSHED II The Empire Center watershed area consists of approximately 540 acres. The area is currently planned for mixed land use. II The existing topography generally slopes to the south. the . area consists predominantly of Type B soil, with a small portion of the northwest corner having Type A soil. li Through a network of storm drain systems, the proposed runoff will be conveyed to the existing storm drain located at the II southwest corner of the project site at Sierra and Jurupa. 1 1 1 1 1 II 1 11 1 1 1 METHODOLOGY Two hydrology studies have been performed with one based on II fully- developed conditions for proposed land use and zoning conditions. The second hydrology study has been conducted for interim conditions (See attached Hydrology Maps). 1: The interim condition shall be defined as the mass graded condition for two areas with the first area being located north of Santa Ana Boulevard and the second area being identified as li the area south of Santa Ana Boulevard. The interim condition assumptions are as follows: II 1. Empire Center Boulevard and Santa Ana Boulevard will be fully improved. "! 2. CSP crossing for Santa Ana Boulevard to drain area ,: north of Santa Ana to the south. 3. Proposed temporary ditch as shown in the hydrology map. 4. Inlet structure at the temporary ditch outlet. 5. 70% pervious condition. .II II II II II II 1 1 il 1 LINE DESCRIPTIONS Line "A ": Line "A" begins at its upstream end on the li north -south residential collector street, approximately 800' south of Stover Avenue. It proceeds downstream southerly along the residential collector, across Santa Ana Boulevard. It continues westerly along the residential collector, crosses Empire Center Blvd., and confluences at Sierra Avenue (Node No. 311.01) with Line "C ". The design frequency is 100 -year. It is designed to convey the 100 -year overflow from Line "B" - li down Empire Center Boulevard South for full development. An earth channel for the interim condition has also been designated. Line NB ": Line "B" begins upstream in the Promotion Center II area approximately 350' South of I -10. It proceeds east on Slover Avenue to Empire Center Boulevard, continuing South on Empire Center Boulevard to Sierra Avenue, where it confluences with Line "C ". The design frequency for Line "B" is 25 -year, fully developed. The 100 -year overflow will travel down li Empire Center Boulevard South and be picked up by Line "A ". Line '!C": Line "C" begins upstream in the Promotion Center area along Sierra Avenue and Stover Avenue. It proceeds South down Sierra Avenue to Jurupa Avenue, where it confluences with the existing Jurupa storm drain. It is designed to convey the 25 -year frequency from its upstream and to node 311.01. The 100 -year overflow will be conveyed along the street. Both sections are designed for the fully- developed condition. The 100 -year overflow will be II picked up at node 311.01. Line "C" is designed for the 100 - year frequency from node 311.01 to node 312.01. DISCUSSION 1 Based on the run - off calculations, the fully - developed run - off is considerably higher than the interim run -off, even though I the interim run -off area is larger than the fully - developed run -off area at the same node. Hence, all storm drain systems I shall be designed for proposed developed conditions. II II II 1 II 1 1 1 11 INTRODUCTION: The RATIONAL METHOD MASTER PLANNING program is a computer- " aided design program where the user develops a node -link model of the watershed, and in this process estimates the conduit and channel sizes needed to accomodate the design storm peak flowrate. The study methodology is based on the ' well -known RATIONAL METHOD which estimates the peak flowrate ® (or 0 in cfs) by the relation 0 = CIA where 0 is the peak flowrate used for design purposes, C is a runoff coefficient and represents the simple ratio of runoff -to- rainfall, and A is the watershed area(acres) tributary to the study point of runoff concentration. For an 1=1 inch /hour and an A =1 acre, and a C=1.0, the 0 =1.008 cfs. III Assuming that a uniform rainfall of constant intensity y occurs over a watershed, then the peak flowrate will occur when the entire watershed is contributing runoff. This peak 01 Q usually occurs when runoff from the most distant point on the watershed reaches the point of concentration. The time which it takes for the watershed runoff to reach the peak 0 il (from the beginning of the constant intensity storm) is called the time of concentration and is noted as Tc. Some of the basic assumptions used in the RATIONAL METHOD are: II (1)the return frequency of the estimated 0 is approximately the return frequency of rainfall; that is, to estimate a 25 -year return frequency peak flowrate (a 025), II the I values are assumed to be of a 25 -year return frequency; (2)rainfall intensities are assumed to be approximately uniform over the watershed; 11 _ (3)the watershed runoff characteristics can be estimated sufficiently to be used in the runoff equation. fi I SETTING UP THE PROBLEM: In order to develop a node -link model of the study watershed, the following steps are needed prior to beginning II ' the study: (1)using a topographic map of the entire watershed, define the watershed boundaries and identify major streams and channels. ii (2)define the watershed boundary for each mayor stream or channel. These interior watersheds will be self- contained in that they can be modeled independently from the total 11 11 I I' 1 11 11 10 watershed. Generally, the interior watersheds will merge . with another interior watershed at a point of CONFLUENCE. (3)subdivide each interior watershed into SUBAREAS. Subarea 1 size should be about 5 to 10 acres in the most upstream reaches, and may gradually increase as the study progresses downstream. . (4)specify the runoff characteristics in each subarea. Basic information includes DEVELOPMENT TYPE such as commercial or agricultural; SCS (U.S. Soil Conservation Service) soil group, which is type A,B,C,or D where A is of low runoff potential(sands) and D is of high runoff potential(such as clay soil). (5)define a runoff coefficient C in each subarea. The computer program allows the user to specify a C -value or use the program C- curves which are a function of development type,soil- group, and the rainfall intensity. C- values will be between 0 and 1. (6)define nodal points along the major stream in each interior watershed. The study approach is to start at the most upstream point in an interior watershed and follow the a -s- main stream . while runoff,is accumulating and estimate channel -sizes as the study progresses in the downstream . direction. A method of node numbering is to use nodes 100.00 ; to. 199. 99 along stream *1, 200.00 to 299.99 along stream *2, and so forth, where node 100.00 is assigned to the most upstream point of interior watershed *1. (7)at a point of CONFLUENCE (where two or more major channels merge), define the nodal numbers to be used ' fill downstream of the confluence. Usually, one of the major streams will have significantly more runoff than the other all streams and one may continue downstream with these numbers. STUDY APPROACH: The node -link model is developed by creating independent I node -link models of each interior watershed and linking these submodels together at confluence points. Consider an interior watershed, say *2, which has been subdivided into SUBAREAS and NODE NUMBERS defined. Starting at the most upstream subarea (between node *201 and *202), ' LI the runoff is estimated by modeling an INITIAL SUBAREA. This . model estimates. a Q based on the initial Te the corresponding 1, the subarea A (usually less than 10 acres), . and the runoff potential. The study continues downstream to L 1 '1 1 II 1 1! node 203 by analyzing how long it takes for the initial subarea Q to reach point 203 by either (1)street- flow,(2)pipeflow,or(3) channel flow. This TRAVEL TIME, Tt, is then added to the initial subarea Tc to estimate the next time of concentration by Tc(203)=Tc(202) +Tt. Using Tc(203), an incremental runoff addition, DQ, to the main stream at node 203 is estimated by using the specified runoff potential (C) and rainfall intensity (I) corresponding to Tc(203). Then the DQ =CIA where the C and I are based on Tc(203) and A is the area tributary to node 203. Thus 10 Q(203) =2(202) +DQ. The study continues to the next downstream node #204 by estimating a new Tt, and so forth. 1 11 gl COMPUTER INTERACTION: The program has been designed to be completely user II friendly. The user- instruction manual, is the program itself. All instructions and program options will be visible to you at the bottom of the screen. Simply type these instructions II at any occasion and the program will respond. For example, type MAIN and you will return to the main menu of program options. Type EXIT and the program will protect the data di files and properly finish the session. COMPUTER DESIGN INTERACTION: Because the analysis proceeds downstream along the main il channel, design decisions can be easily made interactively. As the study progresses between two stream nodal points, the computer results are displayed showing peakflow information J and channel flow data(such as depth and velocity). You will be requested to either accept the study results(in which case the subarea data is stored) or reject the results(in which case the program returns to the previous upstream II point of concentration). II 1 1 1. 1 The program has four OPERATING MODES: (1)CREATION. This mode is used to create a watershed data file containing all the subarea data entries and hydrology rainfall data. Two data banks are used: (i)HYDROLOGY CONTROL DATA. Includes the rainfall versus duration data(assumed to be a straight line on log -log paper), C -value options, return frequency, and a pipeflow friction slope reduction factor. (ii)SUBAREA DATA. A node -link model is made by defining successive subarea characteristics linked together by various flow hydraulic processes. (2)EXECUTION. This mode is used to generate study results in report form. Two options are available: (i)DETAILED REPORT. This provides the same results as - displayed on the viewers screen during CREATION. 11[ (ii)SUMMARY REPORT. This summarizes the results into a tabular forrn. (3)EDITING. This mode allows the user to change, add, or delete subarea data and modify the node -link model. Additionally, the user can change the HYDROLOGY CONTROL DATA and generate a new master plan based on new rainfall L or design criteria. L (4)EXTEND. This options allows the user to return to the last entered link of the model and continue from that point in the CREATION mode. SUBAREA HYDROLOGIC PROCESSES CONFLUENCE: The CONFLUENCE model is the mechanism which allows the user to connect the interior watershed node -link models at a point of confluence. Up to v streams can be confluenced at a node. The stream entries must be made sequentially until all are entered. [ For example, suppose 4 streams merge at node #318. When the CONFLUENCE option is selected at the end of each interior watershed node -link model (at node 318), .you will be requested to enter the TOTAL NUMBER OF STREAMS (which is 4) and which of the 4 streams you are confluencing (1,2,3, or 4). If you are confluencing the first stream (1 of 4), then the STREAM NUMBER is 1; likewise, if you are entering the second stream (2 of 4) for confluence, the STREAM NUMBER is 2; and so forth. After a stream is confluenced, the program 1 1 1 PIPEFLOW AND TRAPEZOIDAL TRAVEL TIME: • Two options for modeling pipeflow are available:(1)let the computer estimate a buildable pipesize, and (2)the user specifies the pipesize. Both models assume no inflow into the pipe system as it connects the upstream and downstream nodes. Both models use the upstream node peak . 0 and the computed gradient of the land between nodes to compute normal depth flow velocity. The velocity is used to estimate s travel time, Tt, between nodes. The Tt is then added to the upstream Tc to estimate the Tc at the downstream node. Flow is assumed to be under pressure_(full pipeflow) when the normal depth exceeds .82*(pipe diameter). The trapezoidal channel flow model is similar to the pipeflow model in that no inflow is assumed between nodes, and that Tt is estimated based on the upstream peak 0 and the gradient of the land. STREET -FLOW ANALYSIS THRU SUBAREA: • li The streetflow model estimates the traveltime of the peak 0 between the upstream and downstream nodes. Since runoff generally accumulates in the street between nodes, the model estimates the average flow between nodes to analyze the streetflow characteristics. The model assumes a symmetrical cross- section with either a standard 6- or 8 -inch curbface. The user specifies the arbitrary street halfwidth. Flow is J modeled by two methods:. ( ?)all the flow is on one side of the street, in which case the flow may cross over the street crown and form "splitflow ", and (2)the flow is evenly `/ divided on both sides of the street. The model assumes all water outside of the curb as ponded, with zero flow. USER SPECIFIED INFORMATION AT A NODE: `1 The user can specify the time of concentration(Tc,minutes); peak flowrate(Q,cfs); and total tributary area(A,acres) at a nodal point. These values will then be defined at the 11 specified nodal point and will be used for any downstream calculations. The rainfall intensity will be based on the user specified Te. This data will remain in effect unless 11 modified by the user. • ADDITION OF SUBAREA TO MAINLINE: II As the study progresses in the downstream direction along the main stream or channel, runoff can be added to the peak flowrate at the Tc of the main stream. This model uses SUBAREA information of runoff potential and area, and uses II ' 1 3 J p 1 1 the Tc of the main stream to estimate incremental runoff. - .- Consequently, should the node -link model be charged upstream of the subject subarea, the node -link model automatically estimates the appropriate incremental runoff. i • . 011 1 (II 1 1 El 1 LI `, _ II EXHIBITS 3 T 1 1 I i 1 • • 1 h WR$GHTW000 JB s? i Los San 1 Angeles Bernardino County ''J. County I I CEVORE • - y` .... CtT:X :QE: / SITE :::folTapA SAN , s c .144sit X- : BERNARDINO / •~ s ' ` COLTON ,--/ J ` —J ONTARIO '" • • - i : ' �� REDLANDS ' w• _ / 5 • CHINO °4F w•► I ` N t��__ _ __— CALIMESA i . RIVERS)IE • e, sol �� e � • BEAUMONT at /y " . . CORONA Z • \ Riverside el ; . _ - County ` • PERRIS 1 \ ..... Orange /s, County I ...._x s, v `LSINORE • — 1 1 - I . 'ME CENTER PROJECT LOCATION 'CITY OF FONTANA EXHIBIT 1.1 NORTH THE ALEXANDER HAAGEN ARCHITECTS PACIFICA LTD ..COMPANY, INC. 1 - , ,... , Eim g,=1, Woo. g e it ! • 1 .;.c.: r----i-- - . : r• . • . ....N.. •‘• •_....1.._ : . ,... • . 1 .. • _ . [ • ,... • Da - .. 1 • 1 I .11111 1 v I i I -1 BLVD . eg!IJE 1 r, _ r Mlw - T • 1 o ■ : SAN 1 ,BERNAROINO' 1 -MO . FAWN. li � _.. —� — v+ m 1 $u ` . a r .. §'rR4. d'.•'frtwr+ . v r 1 1 - IIIMPHIIIIIEN •v 1 >. 91.OVER •-DD AV i 1 w � y , -. I f )V a. !t i 1 al•0 DR 6 y D) 1 . SC�w+t. i r i: -I .. - . _ oil I ���,,��( 1 Ili 1 ' I V t+ "" 1 1 i 'w k ? e w ' J o I . , i ' J :Y+D '1 1 1 t u , ,, e r , , ... 1 1 i:~ _ .. ?~. .. � 111. tro i 1 .:‘ ;G:: i n;/ I ii .�•. _ 1 -=- 1_ I ',���'� PROJECT [E p.t.-..›..,,,,,iii, 1 1 42 1 „r.k.; :r' ;K 1 k„*.!tit,..,..t..,..--r,—.416..::-...----- .. 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Good Cover ! ! 12 1 $ 350 i 25 IA 13. o F o o E _ .4 M , i , • e 300 A 19 Poor Cover m g s k Zl 15 S • '. il . - . 1s o .r 18 Single Family I J 250 16 (s -7 • DU/AC) •.,/'. 18 . = 15 C (POVed bl B � • 19 F o i 14 v JILL 20 • 200 13 L -H -I -K -Tb' o il t2 `Zl g 1, / 25 S LI ° 10 PI pevplopment 150 9 80- Apartment 0 n.. 76- Mobile Home 30 II 8 65- Condominium E • 60- Single Family-5,000 ft 2 Lot F 7 40- Single FomNy -I/4 Acre Lot 35 20 Single Family -1 Acre Lot 0 - In Family- 6 1 Single IY - 21/2 Acre Lot 100 EXAMPLE= 40 1 5 (1) Ls 550', Hs 5.0', Ks Single Family (5 -7 Ou/ACI Development, Tcs12.6 min. 4 (2) Ls 550', Hs 5.0', *Commercial '( Development, Tcs9.7 min. SAN BERNARDINO COUNTY TIME OF CONCENTRATION NOMOGRAPH HYDROLOGY MANUAL FOR INITIAL SUBAREA 1 . Figure D-1 D -4 ,1 11 H i' HYDROLOGY CALCULATIONS iI Ij Lii Ij 1 , .• 1 1 LINE 'A' 100 - YR, FULLY CONDITION 11 A I/ ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) II Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: P Y P P HALL & FOREMAN 1i * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER: LINE °A ' FOR 100 -YR. STORM. *. ** ALL CODE 3 ELEVATIONS ARE INVERT ELEVATIONS ** * C: \MAIN \FLOOD EMPPRE.100 T. ARROYO, 3/27/90. * ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FILE NAME: EMPPRE.100 TIME/DATE OF STUDY: 9:23 3/27/1990 II USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL * -- ' " USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 I SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = .95 *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 1 COMPUTED RAINFALL INTENSITY DATA: TORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 201.00 TO NODE 201.01 IS CODE = 2 » » > RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< D EVELOPMENT IS.COMMERCIAL M~ TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 11 INITIAL SUBAREA FLOW- LENGTH = 850.00 UPSTREAM ELEVATION = 1082.00 DOWNSTREAM ELEVATION = 1072.00 ELEVATION DIFFERENCE = 10.00 II TC = .304 *[( 850.00 ** 3.00)/( 10.00)] ** .20 = 10.978 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.713 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 29.46 TOTAL AREA(ACRES) = 9.00 PEAK FLOW RATE(CFS) = 29.46 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 201.01 TO NODE 202.01 IS CODE = 5 » » >COMPUTE TRAPEZOIDAL- CHANNEL FLOW« «< » » >TRAVELTIME THRU SUBAREA« «< II __ - -==________________ --- - UPSTREAM NODE ELEVATION = 1072.00 1 DOWNSTREAM NODE ELEVATION = 1069.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 200.00 'HANNEL BASE(FEET) = 40.00 "Z" FACTOR = 99.990 r(ANNINGS FACTOR = .030 MAXIMUM DEPTH(FEET) = .50 CHANNEL FLOW THRU SUBAREA(CFS) = 29.46 FLOW VELOCITY(FEET /SEC) = 1.98 FLOW DEPTH(FEET) = .23 TRAVEL TIME(MIN.) = 1.68 TC(MIN.) = 12.66 11 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 202.00 TO NODE 202.01 IS CODE = 8 » » > ADDITION OF SUBAREA TO MAINLINE PEAK FIAW « «< ® 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.408 SOIL CLASSIFICATION IS "B" -NN COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 NI SUBAREA AREA(ACRES) = 4.70 SUBAREA RUNOFF(CFS) = 14.10 EFFECTIVE AREA(ACRES) = 13.70 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 13.70 PEAK FLOW RATE(CFS) = 41.10 TC(MIN) = 12.66 l ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 202.01 TO NODE 205.01 IS CODE = 6 II » »COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA «< M I UPSTREAM ELEVATION = 1069.00 DOWNSTREAM ELEVATION = 1067.80 STREET LENGTH(FEET) = 250.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 II DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 li SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 41.10 II ** *STREET FLOWING FULL * ** STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .67 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.24 PRODUCT OF DEPTH &VELOCITY = 2.16 I STREETFLOW TRAVELTIME(MIN) = 1.29 TC(MIN) = 13.95 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.216 SOIL CLASSIFICATION IS "B" II COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 'FFECTIVE AREA(ACRES) = 13.70 "' AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 13.70 PEAK FLOW RATE(CFS) = 41.10 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .67 HALFSTREET FLOODWIDTH(FEET) = 20.00 FLOW VELOCITY(FEET /SEC.) = - 3.24 DEPTH *VELOCITY = - 2.16 i k******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 'LOW PROCESS FROM NODE 205.00 TO NODE 205.01 IS CODE = 8 r » »»ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.216 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 SUBAREA AREA(ACRES) = 5.20 SUBAREA RUNOFF(CFS) = 13.30 EFFECTIVE AREA(ACRES) = 18.90 AVERAGED Fm(INCH /HR) = .158 TOTAL AREA(ACRES) = 18.90 PEAK FLOW RATE(CFS) = 52.03 TC(MIN) = 13.95 11*************************************************************************** FLOW PROCESS FROM NODE 203.00 TO NODE 205.01 IS CODE = 8 E » ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY INCH HO = 3. - ( / UR) = 3.216 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .85 SUBAREA RUNOFF(CFS) = 2.40 EFFECTIVE AREA(ACRES) = 19.75 WERAGED Fm(INCH /HR) = .154 'OTAL AREA(ACRES) = 19.75 PEAK FLOW RATE(CFS) = 54.43 . TC(MIN) = 13.95 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 205.01 TO NODE 206.01 IS CODE = 3 »» »COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< > » »USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< DEPTH OF FLOW IN 39.0 INCH PIPE IS 27.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.8 11 UPSTREAM NODE ELEVATION = 1060.50 DOWNSTREAM NODE ELEVATION = 1058.65 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 ji ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 54.43 TRAVEL TIME(MIN.) = .53 TC(MIN.) = 14.47 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 206.01 TO NODE 211.01 IS CODE = 3 »» »COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< •» »USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< ., DEPTH OF FLOW IN 39.0 INCH PIPE IS 27.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.9 UPSTREAM NODE ELEVATION = 1058.65 I DOWNSTREAM NODE ELEVATION = 1055.50 FLOWLENGTH(FEET) = 470.00 MANNINGS N = .013 11 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 54.43 'RAVEL TIME(MIN.) = .88 TC(MIN.) = 15.36 1 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 211.01 TO NODE 211.01 IS CODE = 1 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< N CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.36 RAINFALL INTENSITY (INCH. /HOUR) = 3.04 EFFECTIVE STREAM AREA(ACRES) = 19.75 TOTAL STREAM AREA(ACRES) = 19.75 PEAR FLOW RATE(CFS) AT CONFLUENCE = 54.43 11 *************************************************************************** FLOW PROCESS FROM NODE 209.00 TO NODE 209.01 IS CODE = 2 » »>RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = *[(LENGTH* *:3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREAFLOW- LENGTH. = 1000.00 UPSTREAM:. ELEVATION 1075.00 ) OWNSTREAM ELEVATION= 1067.80 ELEVATION'DIFFERENCE = 7.20 TC = '•.304 *(( 1000.00 ** 3.00)/( 7.20)] ** .20 = 12.924 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.366 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 2.52 II TOTAL AREA(ACRES) = .85 PEAK FLOW RATE(CFS) = 2.52 11 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 210.00 TO NODE 209.01 IS CODE = 8 I » ADDITI0N _ OF SUBAREA TO MAINLINE PEAK FLOW ««< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.366 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3750 SUBAREA AREA(ACRES) = 3.60 SUBAREA RUNOFF(CFS) = 9.69 EFFECTIVE AREA(ACRES) = 4.45 II AVERAGED Fm(INCH /HR) = .318 TOTAL AREA(ACRES) = 4.45 PEAK FLOW RATE(CFS) = 12.21 11 TC(MIN) = 12.92 A****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 209.01 TO NODE 211.01 IS CODE = 6 ( » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA« « < I� L ========= == =- --- --- ----- - --M UPSTREAM ELEVATION = 1067.80 DOWNSTREAM ELEVATION = 1064.50 STREET LENGTH(FEET) = 675.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 15.26 ** *STREETFLOW SPLITS OVER STREET - CROWN * ** um FULL DEPTH(FEET) = .56 FLOODWIDTH(FEET) = 20.00 FULL HALF - STREET VELOCITY(FEET /SEC.) = 2.40 SPLIT DEPTH(FEET) = .46 SPLIT FLOODWIDTH(FEET) = 15.12 01 SPLIT VELOCITY(FEET /SEC.) = 2.11 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .56 01 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.40 PRODUCT OF DEPTH &VELOCITY = 1.34 STREETFLOW TRAVELTIME(MIN) = 4.70 TC(MIN) = 17.62 100 YEAR RAINFALL INTENSITY INCH HOUR = 2.795 SOIL CLASSIFICATION IS "B" 01 RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 SUBAREA AREA(ACRES) =- 2.80 SUBAREA RUNOFF(CFS) = 6.10 EFFECTIVE AREA(ACRES) = 7.25 AVERAGED Fm(INCH /HR) _. .340 'OTAL AREA(ACRES) = 7.25 PEAK FLOW RATE(CFS) = 16.02 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 20.00 II FLOW VELOCITY(FEET /SEC.) = 2.40 DEPTH *VELOCITY = 1.34 11*************************************************************************** al FLOW PROCESS FROM NODE 211.01 TO NODE 211.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: II TIME OF CONCENTRATION(MINUTES) = 17.62 RAINFALL INTENSITY (INCH. /HOUR) = 2.79 EFFECTIVE STREAM AREA(ACRES) = 7.25 TOTAL STREAM AREA(ACRES) = 7.25 PEAK FLOW RATE(CFS) AT CONFLUENCE = 16.02 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) I 1 54.43 15.36 3.035 .15 .34 19.75 2 16.02 17.62 2.795 7.25 I IAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: 11 STREAM CONFLUENCE EFFECTIVE a L 'LUMBER Q(CFS) AREA(ACRES) 1 1 2 69.76 26.07 65.91 27.00 `OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: EAR FLOW RATE(CFS) = 69.76 TIME(MINUTES) = 15.357 FFECTIVE AREA(ACRES) = 26.07 OTAL AREA(ACRES) = 27.00 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 211.01 TO NODE 208.01 IS CODE = 3 1 > ))) COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< "' » »>USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< 1 N EPTH OF FLOW IN 42.0 INCH PIPE IS 30.6 INCHES - IPEFLOW VELOCITY FEET SEC. = 9.3 UPSTREAM NODE ELEVATION = 1055.50 "•WNSTREAM NODE ELEVATION = 1052.50 rLOWLENGTH(FEET) = 460.00 MANNINGS N.= .013 . ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = - 1 IPEFLOW THRU SUBAREA(CFS) = 69.76 VEL TIME(MIN.) = .83 TC(MIN.) = 16.18 ****************************.****,*********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW ; ;PROCESS: FROM NODE :. ,,; 208.01 TO NODE . 208.01 IS CODE = 1 • » » >DESIGNATE:INDEPENDENT STREAM.FOR'CONFLUENCE « «< �CONFLUENCE'VALUES USED. FOR INDEPENDENT M STREAM 1 ARE: TIME OF- CONCENTRATION(MINUTES) = 16.18 NFALL'INTENSITY (INCH. /HOUR) = 2.94 'LZETFECTIVE STREAM AREA(ACRES) = 26.07 TOTAL STREAM AREA(ACRES) = 27.00 [TEAK FLOW RATE(CFS) AT CONFLUENCE = 69.76 F ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 206.00 TO NODE 206.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< EVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE C = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 -M INITIAL SUBAREA FLOW - LENGTH = 850.00 UPSTREAM ELEVATION = 1073.30 WNSTREAM ELEVATION = 1066.90 LEVATION DIFFERENCE = 6.40 C = .389 *[( 850.00 ** 3.00)/( 6.40)] ** .20 = 15.359 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.035 ItOIL CLASSIFICATION IS "" B E SIDENTIAL - > 5 - 7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 IUBAREA RUNOFF(CFS) = 14.60 '11120TAL AREA(ACRES) = 6.10 PEAK FLOW RATE(CFS) = 14.60 Al +• ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 4 ' FLOW PROCESS FROM NODE 206.01 TO NODE 207.01 IS CODE = 6 II » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « TPSTREAM ELEVATION = 1066.80 DOWNSTREAM ELEVATION = 1063.20 11 STREET LENGTH(FEET) = 700.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 II INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 17.93 * * *STREETFLOW SPLITS OVER STREET - CROWN * ** FULL DEPTH(FEET) = .56 FLOODWIDTH(FEET) = 20.00 FULL HALF - STREET VELOCITY(FEET /SEC.) = 2.46 SPLIT DEPTH(FEET) = .52 SPLIT FLOODWIDTH(FEET) = 18.13 SPLIT VELOCITY(FEET /SEC.) = 2.20 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.46 PRODUCT OF DEPTH &VELOCITY = 1.37 STREETFLOW TRAVELTIME(MIN) = 4.75 TC(MIN) = 20.11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.582 SOIL CLASSIFICATION IS "B" PUBLIC PARK SUBAREA LOSS RATE, Fm(INCH /HR) = .6375 :UBAREA AREA(ACRES) = 3.80 SUBAREA RUNOFF(CFS) = 6.65 EFFECTIVE AREA(ACRES) = 9.90 AVERAGED Fm(INCH/HR) = .476 I TOTAL AREA(ACRES) = 9.90 PEAK FLOW RATE(CFS) = 18.77 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 20.00 II FLOW VELOCITY(FEET /SEC.) = 2.46 DEPTH *VELOCITY = 1.37 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 207.01 TO NODE 208.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< I IPSTREAI4 ELEVATION = 1063.20 DOWNSTREAM ELEVATION = 1062.00 STREET LENGTH(FEET) = 150.00 CURB HEIGTH(INCHES) = 8. I STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 II INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 II * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 21.28 * *STREETFLOW SPLITS OVER STREET - CROWN * ** I FULL DEPTH(FEET) = .56 FLOODWIDTH(FEET) = 20.00 FULL HALF - STREET VELOCITY(FEET /SEC.) = 3.06 SPLIT DEPTH(FEET) = .49 SPLIT FLOODWIDTH(FEET) = 16.63 SPLIT VELOCITY(FEET /SEC.) = 2.86 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .56 .1 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.06 PRODUCT OF DEPTH &VELOCITY = 1.71 STREETFLOW TRAVELTIME(MIN) = .82 TC(MIN) = 20.92 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.521 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 5.02 EFFECTIVE AREA(ACRES) = 12.50 AVERAGED Fm(INCH/HR) = .455 TOTAL AREA(ACRES) = 12.50 PEAK FLOW RATE(CFS) = 23.25 END OF SUBAREA STREETFLOW HYDRAULICS: j DEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 20.00 FLOW VELOCITY(FEET /SEC.) = 3.06 DEPTH *VELOCITY = 1.71 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** is FLOW PROCESS FROM NODE 208.01 TO NODE 208.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: - TIME :OF CONCENTRATION(MINUTES) = 20.92 RAINFALL: INTENSITY (INCH. /HOUR) = 2.52 EFFECTIVE°: STREAM ;AREA (ACRES) = 12.50 TOTAL STREAWAREA(ACRES) = . 12.50 al PEAK: :FLOW RATE (CFS )? 'AT CONFLUENCE = 23.25 * * * * * **** *********************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** I FWWROCESS FROM NODE 212.00 TO NODE 207.01 IS CODE = 2 » » >RATIONAL METHOD_INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE E TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 360.00 UPSTREAM ELEVATION = 1064.30 DOWNSTREAM ELEVATION = 1063.20 ELEVATION DIFFERENCE = 1.10 TC = .389 *[( 360.00 ** 3.00)/( 1.10)] ** .20 = 13.045 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.348 SOIL CLASSIFICATION IS "B" RESIDENTIAL •> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 SUBAREA RUNOFF(CFS) = 4.82 TOTAL AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) = 4.82 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II -FLOW PROCESS FROM NODE 207.01 TO NODE 208.01 IS CODE = 6 '`» »COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA« «< 1 UPSTREAM ELEVATION = M 1063.20 DOWNSTREAM ELEVATION = 1062.00 STREET LENGTH(FEET) = 150.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 II INTERIOR STREET CROSSFALL(DECIMAL) = .020 II OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 Il S e * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.82 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.63 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.35 PRODUCT OF DEPTH &VELOCITY = 1.01 C STREETFLOW TRAVELTIME(MIN) = 1.06 TC(MIN) = 14.11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.194 f T SOIL CLASSIFICATION IS "B" - COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 LI T EFFECTIVE AREA(ACRES) = 1.80 E AVERAGED Fm(INCH /HR) = .375 TOTAL AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) = 4.82 END OF SUBAREA STREETFLOW HYDRAULICS: r ili DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.63 u FLOW VELOCITY(FEET /SEC.) = 2.35 DEPTH *VELOCITY = 1.01 r******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 215.00 TO NODE 208.01 IS CODE = 8 • .» »ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.194 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3750 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 12.18 EFFECTIVE AREA(ACRES) = 6.60 A Fm (IN _ .375 TOTAL AREA(ACRES) = 6.60 PEAK FLOW RATE(CFS) = 16.74 TC(MIN) = 14.11 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** L FLOW PROCESS FROM NODE 208.01 TO NODE 208.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « « < II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.11 RAINFALL INTENSITY (INCH. /HOUR) = 3.19 EFFECTIVE STREAM AREA(ACRES) = 6.60 TOTAL STREAM AREA(ACRES) = 6.60 AI PEAK FLOW RATE(CFS) AT CONFLUENCE = 16.74 I CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) ( 1 69.76 16.18 2.942 .20 26.07 2 23.25 20.92 2.521 .45 12.50 3 16.74 14.11 3.194 .37 6.60 'AINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 106.64 42.34 2 95.07 45.17 1 3 103.93 37.75 I COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 106.64 TIME(MINUTES) = 16.182 EFFECTIVE AREA(ACRES) = 42.34 TOTAL AREA(ACRES) = 46.10 END OF STUDY SUMMARY: 'pPt'1FP Lisa v A S TOTAL AREA(ACRES) = 46.10 US'EF — 5?Cc1f!e, EFFECTIVE AREA(ACRES) = 42.3 Mt ; pMAsN -/ too PEAK FLOW RATE (CFS ) = 106.64 .10t;q. 7041%0 y END OF RATIONAL METHOD ANALYSIS **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER LINE "A" * DESIGN Q FOR LINE "A" * INCLUDES (Q100 - Q25) OVERFLOW FROM LINE "B" @ SANTA ANA AND EMPIRE C *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: EMPMAIN.DES TIME/DATE OF STUDY: 12:27 8/29/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ______________====== --*TIME-OF-CONCENTRATION 411 USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* : YEAR"- STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 - YEAR:, STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 ni **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 208.01 TO NODE 208.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: parA F) .M TC(MIN) = 16.18 RAIN INTENSITY(INCH /HOUR) = 2.94 EFFECTIVE AREA(ACRES) = 42.34 TOTAL AREA(ACRES) = 46.10 PEAK FLOW RATE(CFS) = 106.60 EMf / ?6, /0 AVERAGED LOSS RATE, Fm (IN /HR) = .370 4/ 2n g **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** rn FLOW PROCESS FROM NODE 208.01 TO NODE 214.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< _ NN = DEPTH OF FLOW IN 51.0 INCH PIPE IS 39.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.0 1 11 UPSTREAM NODE ELEVATION = 1052.50 DOWNSTREAM NODE ELEVATION = 1051.40 FLOWLENGTH(FEET) = 235.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 106.60 TRAVEL TIME(MIN.) = .43 TC(MIN.) = 16.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 214.01 TO NODE 214.01 IS CODE = 1 01 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE< « < ____ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.61 RAINFALL INTENSITY (INCH. /HOUR) = 2.90 EFFECTIVE STREAM AREA(ACRES) = 42.34 TOTAL STREAM AREA(ACRES) = 46.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 106.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 213.00 TO NODE 213.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< ~ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE' TC = K *[( LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 900.00 UPSTREAM ELEVATION = 1075.00 DOWNSTREAM ELEVATION = 1066.60 ELEVATION DIFFERENCE = 8.40 TC = .389 *[( 900.00 ** 3.00)/( 8.40)] ** .20 = 15.054 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.072 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 21.36 TOTAL AREA(ACRES) = 8.80 PEAK FLOW RATE(CFS) = 21.36 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 213.01 TO NODE 214.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRUSUBAREA « «< UPSTREAM ELEVATION = 1066.60 DOWNSTREAM ELEVATION = 1065.20 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. 1 STREET HALFWIDTH(FEET) = 18.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 10.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 11 2 1 I * *TRAVELTIME COMPUTED = USING MEAN FLOW(CFS) 21.36 ** *STREET FLOWING FULL * ** 11 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .63 HALFSTREET FLOODWIDTH(FEET) = 18.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 1.99 PRODUCT OF DEPTH &VELOCITY = 1.25 STREETFLOW TRAVELTIME(MIN) = 5.44 TC(MIN) = 20.49 EI 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.553 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = 8.80 AVERAGED Fm(INCH/HR) = .375 TOTAL AREA(ACRES) = 8.80 PEAK FLOW RATE(CFS) = 21.36 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .63 HALFSTREET FLOODWIDTH(FEET) = 18.00 FLOW VELOCITY(FEET /SEC.) = 1.99 DEPTH *VELOCITY = 1.25 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 214.00 TO NODE 214.01 IS CODE = 8 II » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< Z--- -� - - -- --_======= r: 100. YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.553 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5-7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 9.41 EFFECTIVE AREA(ACRES) = 13.60 AVERAGED Fm(INCH/HR) = .375 TOTAL AREA(ACRES) = 13.60 PEAK FLOW RATE(CFS) = 26.66 TC(MIN) = 20.49 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 214.01 TO NODE 214.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< NN CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: - -- TIME OF CONCENTRATION(MINUTES) = 20.49 RAINFALL INTENSITY (INCH. /HOUR) = 2.55 EFFECTIVE STREAM AREA(ACRES) = 13.60 TOTAL STREAM AREA(ACRES) = 13.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.66 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 3 1 1 II 1 106.60 16.61 2.895 .37 42.34 2 26.66 20.49 2.553 .38 13.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: II STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 131.61 53.37 li 2 118.80 55.94 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 131.61 TIME(MINUTES) = 16.614 EFFECTIVE AREA(ACRES) = 53.37 li TOTAL AREA(ACRES) = 59.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 01 FLOW PROCESS FROM NODE 214.01 TO NODE 214.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « <« » »>USING�COMPUTER_ESTIMATED PIPESIZE (NON- PRESSURE FLOW)« __ DEPTH OF FLOW IN 57.0 INCH PIPE IS 43.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.2 ® UPSTREAM NODE ELEVATION = 1051.40 DOWNSTREAM NODE ELEVATION = 1050.40 FLOWLENGTH(FEET) = 240.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 131.61 TRAVEL TIME(MIN.) = .44 TC(MIN.) = 17.05 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 214.02 TO NODE 404.01 IS CODE = 3 01 » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « _ » »>USING COMPUTER-ESTIMATED PIPESIZE (NON_PRESSURE FLOW) « « < - _M_- DEPTH OF FLOW IN 57.0 INCH PIPE IS 41.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.5 UPSTREAM NODE ELEVATION = 1050.40 DOWNSTREAM NODE ELEVATION = 1048.00 FLOWLENGTH(FEET) = 525.00 MANNINGS N = .013 I ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 131.61 TRAVEL TIME(MIN.) = .92 TC(MIN.) = 17.97 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 404.00 TO NODE 404.01 IS CODE = 8 I » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< - -_- 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.762 1 4 1 1 1 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 4.00 SUBAREA RUNOFF(CFS) = 8.59 EFFECTIVE AREA(ACRES) = 57.37 AVERAGED Fm(INCH /HR) = .371 TOTAL AREA(ACRES) = 63.70 PEAK FLOW RATE(CFS) = 131.61 TC(MIN) = 17.97 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** �. FLOW PROCESS FROM NODE 404.01 TO NODE 402.01 IS CODE = 3 » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « « < fli » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 57.0 INCH PIPE IS 41.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.6 Ell UPSTREAM NODE ELEVATION = 1048.00 DOWNSTREAM NODE ELEVATION = 1047.20 FLOWLENGTH(FEET) = 170.00 MANNINGS N = .013 [II ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 131.61 TRAVEL TIME(MIN.) = .29 TC(MIN.) = 18.26 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ` FLOW PROCESS FROM NODE 402.01 TO NODE 402.01 IS CODE = 1 fil >DESIGNATE: INDEPENDENT :STREAM FOR CONFLUENCE ««< CONFLUENCE;. VALUES USED. FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 18.26 RAINFALL INTENSITY (INCH. /HOUR) = 2.74 EFFECTIVE STREAM AREA(ACRES) = 57.37 TOTAL STREAM AREA(ACRES) = 63.70 [11 PEAK FLOW RATE(CFS) AT CONFLUENCE = 131.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 011 FLOW PROCESS FROM NODE 400.00 TO NODE 400.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1093.00 DOWNSTREAM ELEVATION = 1088.00 ELEVATION DIFFERENCE = 5.00 Ell TC = .304 *[( 1000.00 ** 3.00)/( 5.00)] ** .20 = 13.902 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.222 S OIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 5 f SUBAREA RUNOFF(CFS) = 3.68 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 3.68 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** • FLOW PROCESS FROM NODE 400.01 TO NODE 401.01 IS CODE = 6 11 __ » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA« « <_____________==_______ UPSTREAM ELEVATION = 1088.00 DOWNSTREAM ELEVATION = 1077.80 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5.26 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 = HALFSTREET FLOODWIDTH(FEET) = 12.97 AVERAGE FLOW VELOCITY(FEET /SEC.) 2.81 PRODUCT OF DEPTH &VELOCITY = 1.17 II STREETFLOW TRAVELTIME(MIN) = 5.92 TC(MIN) = 19.83 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.604 SOIL CLASSIFICATION IS "B" • COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.40 SUBAREA RUNOFF(CFS) = 3.19 EFFECTIVE AREA(ACRES) = 2.70 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.70 PEAK FLOW RATE(CFS) = 6.15 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 FLOW VELOCITY(FEET /SEC.) = 2.94 DEPTH *VELOCITY = 1.28 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 401.01 TO NODE 402.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1077.80 DOWNSTREAM ELEVATION = 1058.00 STREET LENGTH(FEET) = 2970.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 11 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 8.23 6 1 1 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 17.03 11 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.66 PRODUCT OF DEPTH &VELOCITY = 1.33 STREETFLOW TRAVELTIME(MIN) = 18.59 TC(MIN) = 38.42 10 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.751 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.80 SUBAREA RUNOFF(CFS) = 4.22 EFFECTIVE AREA(ACRES) = 5.50 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 5.50 PEAK FLOW RATE(CFS) = 8.30 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 17.03 FLOW VELOCITY(FEET /SEC.) = 2.68 DEPTH *VELOCITY = 1.34 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 402.01 TO NODE 402.01 IS CODE = 1 _ » » >DESIGNATE INDEPENDENT_ STREAM FOR CONFLUENCE « «< N_ MMN CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 38.42 RAINFALL INTENSITY (INCH. /HOUR) = 1.75 EFFECTIVE STREAM AREA(ACRES) = 5.50 TOTAL STREAM AREA(ACRES) _= 5.50 PEAK'FLOWiRATE(CFS) AT CONFLUENCE = 8.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 405.00 TO NODE 405.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< M DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 gl INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1067.00 DOWNSTREAM ELEVATION = 1060.50 ELEVATION DIFFERENCE = 6.50 1 TC = .389 *[( 1000.00 ** 3.00)/( 6.50)] ** .20 = 16.880 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.868 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 15.71 TOTAL AREA(ACRES) = 7.00 PEAK FLOW RATE(CFS) = 15.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 405.01 TO NODE 402.01 IS CODE = 6 7 t » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « < UPSTREAM ELEVATION = 1060.50 DOWNSTREAM ELEVATION = 1058.00 STREET LENGTH(FEET) = 500.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAR = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 1: SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 16.65 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .65 HALFSTREET FLOODWIDTH(FEET) = 24.34 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.72 PRODUCT OF DEPTH &VELOCITY = 1.76 STREETFLOW TRAVELTIME(MIN) = 3.06 TC(MIN) = 19.94 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.595 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .83 SUBAREA RUNOFF(CFS) = 1.88 EFFECTIVE AREA(ACRES) = 7.83 AVERAGED Fm(INCH /HR) = .343 TOTAL AREA(ACRES) = 7.83 PEAK FLOW RATE(CFS) = 15.87 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .63 HALFSTREET FLOODWIDTH(FEET) = 23.53 FLOW.VELOCITY(FEET /SEC.) = 2.77 DEPTH *VELOCITY = 1.74 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 402.01 TO NODE 402.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 19.94 RAINFALL INTENSITY (INCH. /HOUR) = 2.60 EFFECTIVE STREAM AREA(ACRES) = 7.83 g TOTAL STREAM AREA(ACRES) = 7.83 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.87 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 403.20 TO NODE 405.01 IS CODE = 2 11 -- » » >RATIONAL METHOD === INITIAL SUBAREA ANALYSIS « «< -N - -- DEVELOPMENT IS COMMERCIAL 11 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1067.00 11 8 1 I 1 DOWNSTREAM ELEVATION = 1060.50 ELEVATION DIFFERENCE = 6.50 TC = .304 *[( 700.00 ** 3.00)/( 6.50)] ** .20 = 10.650 1 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.781 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 4.00 I TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 4.00 • Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 405.01 TO NODE 402.01 IS CODE = 6 » »> COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1060.50 DOWNSTREAM ELEVATION = 1058.00 STREET LENGTH(FEET) = 500.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 , Ell DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 • * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5.65 STREETFLOW MODEL RESULTS: - - STREET..FLOWDEPTH(FEET) = .47 ',:, 'FLOODWIDTH(FEET) = 15.41 AVERAGE FLOW.VELOCITY(FEET /SEC.) = 2.21 PRODUCT OF DEPTH &VELOCITY = 1.03 STREETFLOW TRAVELTIME(MIN) = 3.78 TC(MIN) = 14.43 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.151 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 3.32 EFFECTIVE AREA(ACRES) = 2.40 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) = 6.64 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 17.03 FLOW VELOCITY(FEET /SEC.) = 2.15 DEPTH *VELOCITY = 1.07 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 402.01 TO NODE 402.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 14.43 RAINFALL INTENSITY (INCH. /HOUR) = 3.15 EFFECTIVE STREAM AREA(ACRES) = 2.40 9 I 4 II II TOTAL STREAM AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.64 I CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1/ 1 131.61 18.26 2.736 .37 57.37 2 8.30 38.42 1.751 .07 5.50 3 15.87 19.94 2.595 .34 7.83 4 6.64 14.43 3.151 .08 2.40 1 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. li SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) gl 1 159.06 69.55 2 98.63 73.10 3 151.57 70.45 4 148.93 55.45 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 159.06 TIME(MINUTES) = 18.263 EFFECTIVE AREA(ACRES) = 69.55 TOTAL AREA(ACRES) = 79.43 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 402.01 TO NODE 407.10 IS CODE = 3 i t » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) ««< M ) DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.9 li UPSTREAM NODE ELEVATION = 1047.20 DOWNSTREAM NODE ELEVATION = 1046.30 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 li PIPEFLOW THRU SUBAREA(CFS) = 159.06 TRAVEL TIME(MIN.) = .34 TC(MIN.) = 18.60 ® **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.10 TO NODE 407.50 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< 1 __ » » >USING COMPUTER-ESTIMATED PIPESIZE (NON - PRESSURE FLOW) ««< DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.0 INCHES il PIPEFLOW VELOCITY(FEET /SEC.) = 9.9 UPSTREAM NODE ELEVATION = 1046.30 DOWNSTREAM NODE ELEVATION = 1045.85 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 II 10 i l 1 1 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 159.06 TRAVEL TIME(MIN.) = .17 TC(MIN.) = 18.77 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.50 TO NODE 407.11 IS CODE = 3 1 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< /I -- DEPTH OF FLOW IN 60.0 INCH PIPE IS 43.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.3 UPSTREAM NODE ELEVATION = 1045.85 DOWNSTREAM NODE ELEVATION = 1042.21 FLOWLENGTH(FEET) = 727.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 159.06 TRAVEL TIME(MIN.) = 1.17 TC(MIN.) = 19.94 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.11 TO NODE 407.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< II » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE-VALUES USED FOR INDEPENDENT STREAM 1 ARE: N TIME OFD CONCENTRATION (MINUTES) = 19.94 11 ' INTENSITY (INCH. /HOUR) = 2.59 EFFECTIVE STREAM AREA(ACRES) = 69.55 TOTAL STREAM AREA(ACRES) = 79.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 159.06 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 159.06 19.94 2.595 .35 69.55 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO DATA USED CONFLUENCE FORMULA USED FOR 1 STREAMS. �S USE�Z -SP« SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE G 1rT6X TAW NUMBER Q(CFS) AREA(ACRES) x'16 1 159.06 69.55 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: /J'j.j O- (..07 �1 PEAK FLOW RATE(CFS) = 159.06 TIME(MINUTES) = 19.943 EFFECTIVE AREA(ACRES) = 69.55 TOTAL AREA(ACRES) = 79.43 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.10 TO NODE 406.11 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL M - - -- - - -M - - -- - -N TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 950.00 UPSTREAM ELEVATION = 1060.00 DOWNSTREAM ELEVATION = 1056.70 ELEVATION DIFFERENCE = 3.30 TC = .304 *[( 950.00 ** 3.00)/( 3.30)] ** .20 = 14.649 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.123 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 3.84 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 3.84 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.11 TO NODE 406.11 IS CODE = 1 Ell ________ » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM ARE: TIME OF CONCENTRATION(MINUTES) = 14.65 RAINFALL INTENSITY (INCH. /HOUR) = 3.12 EFFECTIVE STREAM AREA(ACRES) = 1.40 TOTAL STREAM AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.84 ******** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.00 TO NODE 406.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 750.00 UPSTREAM ELEVATION = 1063.00 DOWNSTREAM ELEVATION = 1056.70 ELEVATION DIFFERENCE = 6.30 TC = .304 *[( 750.00 ** 3.00)/( 6.30)] ** .20 = 11.170 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.674 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 26.56 TOTAL AREA(ACRES) = 8.20 PEAK FLOW RATE(CFS) = 26.56 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.11 TO NODE 406.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< 12 1 1 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« < N CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: II TIME OF CONCENTRATION(MINUTES) = 11.17 RAINFALL INTENSITY (INCH. /HOUR) = 3.67 EFFECTIVE STREAM AREA(ACRES) = 8.20 TOTAL STREAM AREA(ACRES) = 8.20 f PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.56 `` CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 3.84 14.65 3.123 .08 1.40 2 26.56 11.17 3.674 .08 8.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. II SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) II 1 26.33 9.60 2 30.02 9.27 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: II PEAK FLOW RATE(CFS) = 30.02 TIME(MINUTES) = 11.170 EFFECTIVE AREA(ACRES) = 9.27 TOTAL AREA(ACRES) = 9.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.11 TO NODE 406.21 IS CODE = 6 II >>>>>COMPUTE ------ STREETFLOW TRAVELTIME THRU SUBAREA ««< _ _ M UPSTREAM ELEVATION = 1056.70 DOWNSTREAM ELEVATION = 1054.00 li STREET LENGTH(FEET) = 300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 16.00 I: INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 II * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 31.08 * * *STREETFLOW SPLITS OVER STREET - CROWN * ** FULL DEPTH(FEET) = .64 FLOODWIDTH(FEET) = 24.00 II FULL HALF - STREET VELOCITY(FEET /SEC.) = 3.64 SPLIT DEPTH(FEET) = .51 SPLIT FLOODWIDTH(FEET) = 17.50 SPLIT VELOCITY(FEET /SEC.) = 2.90 STREETFLOW MODEL RESULTS: II STREET FLOWDEPTH(FEET) = .64 HALFSTREET FLOODWIDTH(FEET) = 24.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.64 II 13 II II PRODUCT OF DEPTH &VELOCITY = 2.32 STREETFLOW TRAVELTIME(MIN) = 1.37 TC(MIN) = 12.54 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.427 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .70 SUBAREA RUNOFF(CFS) = 2.11 EFFECTIVE AREA(ACRES) = 9.97 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 10.30 PEAK FLOW RATE(CFS) = 30.07 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .64 HALFSTREET FLOODWIDTH(FEET) = 24.00 FLOW VELOCITY(FEET /SEC.) = 3.64 DEPTH *VELOCITY = 2.32 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.30 TO NODE 406.21 IS CODE = 8 » »>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.427 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.40 SUBAREA RUNOFF(CFS) = 10.26 EFFECTIVE AREA(ACRES) = 13.37 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 13.70 PEAK FLOW RATE(CFS) = 40.33 TC(MIN) = 12.54 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.21 TO NODE 406.41 IS CODE = 3 Ell » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLAW) « «< Ell DEPTH OF FLOW IN 36.0 INCH PIPE IS 28.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.6 UPSTREAM NODE ELEVATION = 1045.87 DOWNSTREAM NODE ELEVATION = 1043.67 FLOWLENGTH(FEET) = 550.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 40.33 TRAVEL TIME(MIN.) = 1.38 TC(MIN.) = 13.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.40 TO NODE 406.41 IS CODE = 8 » OF SUBAREA TO MAINLINE PEAK FLOW« 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.219 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 `� 14 [II 11 SUBAREA AREA(ACRES) = 2.50 SUBAREA RUNOFF(CFS) = 7.07 EFFECTIVE AREA(ACRES) = 15.87 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 16.20 PEAK FLOW RATE(CFS) = 44.90 TC(MIN) = 13.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.00 TO NODE 406.41 IS CODE = 8 1: » »>ADDITION OF ----------- SUBAREA TO MAINLINE PEAK_FLOW « « <__ N_N__ _N 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.219 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 4.70 SUBAREA RUNOFF(CFS) = 12.03 EFFECTIVE AREA(ACRES) = 20.57 AVERAGED Fm(INCH /HR) = .144 TOTAL AREA(ACRES) = 20.90 PEAK FLOW RATE(CFS) = 56.93 TC(MIN) = 13.93 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 406.41 TO NODE 407.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU`SUBAREA « « < » »>USING "COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « « < DEPTH OF FLOW IN 42.0 INCH PIPE IS 33.5 INCHES PIPEFLOW- VELOCITY(FEET /SEC.) = 6.9 UPSTREAM NODE ELEVATION = 1043.67 11 DOWNSTREAM NODE ELEVATION = 1042.23 FLOWLENGTH(FEET) = 407.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 56.93 TRAVEL TIME(MIN.) = .98 TC(MIN.) = 14.91 ® **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.10 TO NODE 407.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< W 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.090 N SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 8.40 SUBAREA RUNOFF(CFS) = 20.53 EFFECTIVE AREA(ACRES) = 28.97 AVERAGED Fm(INCH/HR) = .211 TOTAL AREA(ACRES) = 29.30 PEAK FLOW RATE(CFS) = 75.06 TC(MIN) = 14.91 15 1 I II *********************************************************************** FLOW PROCESS FROM NODE 407.11 TO NODE 407.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< N_ M CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.91 RAINFALL INTENSITY (INCH. /HOUR) = 3.09 EFFECTIVE STREAM AREA(ACRES) = 28.97 TOTAL STREAM AREA(ACRES) = 29.30 PEAR FLOW RATE(CFS) AT CONFLUENCE = 75.06 0/ **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.11 TO NODE 407.11 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< U SER - SPECIFIED VALUES ARE AS FOLLOWS: NN ___________ TC(MIN) TC(MIN) = 19.94 RAIN INTENSITY(INCH /HOUR) = 2.60 II EFFECTIVE AREA(ACRES) = 69.55 TOTAL AREA(ACRES) = 79.43 PEAK FLOW RATE(CFS) = 159.06 AVERAGED LOSS RATE, Fm(IN /HR) = .350 AF 4 - Freq AtoAE' 4 /1 II ************************************************* alig * * * * * * * * * * ** :?. FLOW :PROCESS _= FROM - NODE ' 407.11 TO NODE 407.11 IS CODE = 1 I » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: II TIME OF CONCENTRATION(MINUTES) = 19.94 RAINFALL INTENSITY (INCH. /HOUR) = 2.60 EFFECTIVE STREAM AREA(ACRES) = 69.55 II TOTAL STREAM AREA(ACRES) = 79.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 159.06 CONFLUENCE INFORMATION: II STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 75.06 14.91 3.090 .21 28.97 ® 2 159.06 19.94 2.595 .35 69.55 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. 11 SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) II 1 220.19 80.96 2 221.22 98.52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: II 16 II II PEAK FLOW RATE(CFS) = 221.22 TIME(MINUTES) = 19.940 EFFECTIVE AREA(ACRES) = 98.52 TOTAL AREA(ACRES) = 108.73 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.11 TO NODE 407.14 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 66.0 INCH PIPE IS 54.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1042.20 DOWNSTREAM NODE ELEVATION = 1040.60 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 221.22 TRAVEL TIME(MIN.) = .55 TC(MIN.) = 20.49 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.14 TO NODE 407.14 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 20.49 RAINFALL INTENSITY (INCH. /HOUR) = 2.55 EFFECTIVE STREAM AREA(ACRES) = 98.52 TOTAL STREAM AREA(ACRES) = 108.73 PEAK FLOW RATE(CFS) AT CONFLUENCE = 221.22 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 221.22 20.49 2.553 .31 98.52 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO JJSED AS CONFLUENCE FORMULA USED FOR 1 STREAMS. USER S /ec, SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE LAf6.( 72s*i NUMBER Q(CFS) AREA(ACRES) Fi16' 1 221.22 98.52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: /UODE 007 At PEAK FLOW RATE(CFS) = 221.22 TIME(MINUTES) = 20.489 EFFECTIVE AREA(ACRES) = 98.52 TOTAL AREA(ACRES) = 108.73 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 409.00 TO NODE 407.13 IS CODE = 2 17 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1060.90 DOWNSTREAM ELEVATION = 1057.90 ELEVATION DIFFERENCE = 3.00 TC = .304 *[( 1000.00 ** 3.00)/( 3.00)] ** .20 = 15.397 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.031 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.72 TOTAL AREA(ACRES) = 1.40 PEAK FLOW RATE(CFS) = 3.72 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.20 TO NODE 407.13 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.031 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = 1.60 EFFECTIVE AREA(ACRES) = 2.00 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 2.00 PEAK FLOW RATE(CFS) = 5.32 TC(MIN) = 15.40 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.13 TO NODE 407.14 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.5 UPSTREAM NODE ELEVATION = 1043.00 DOWNSTREAM NODE ELEVATION = 1040.78 FLOWLENGTH(FEET) = 450.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 5.32 TRAVEL TIME(MIN.) = 1.68 TC(MIN.) = 17.08 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.40 TO NODE 407.14 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 18 II I II 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.848 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 1 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = 1.25 EFFECTIVE AREA(ACRES) = 2.50 AVERAGED Fm(INCH /HR) = .075 II TOTAL AREA(ACRES) = 2.50 PEAK FLOW RATE(CFS) = 6.24 TC(MIN) = 17.08 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.30 TO NODE 407.14 IS CODE = 8 i ----------------- » »>ADDITION OF SUBAREA TO MAINLINE PEAK_ FLOW « « <____ N -N =N= 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.848 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 3.70 SUBAREA RUNOFF(CFS) = 8.23 EFFECTIVE AREA(ACRES) = 6.20 AVERAGED Fm(INCH /HR) = .254 TOTAL AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) = 14.47 TC(MIN) = 17.08 II ************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * ** FLOW 'PROCESS =FROM NODE . 407.14 TO NODE 407.14 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< ~ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM M 1 ARE: M TIME OF CONCENTRATION(MINUTES) = 17.08 RAINFALL INTENSITY (INCH. /HOUR) = 2.85 EFFECTIVE STREAM AREA(ACRES) = 6.20 li TOTAL STREAM AREA(ACRES) = 6.20 .; PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.47 ji **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.14 TO NODE 407.14 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< USER - SPECIFIED VALUES ARE AS FOLLOWS: -- ) MATA nr4 TC(MIN) = 20.55 RAIN INTENSITY(INCH /HOUR) = 2.55 "545-4 EFFECTIVE AREA(ACRES) = 98.52 C I6 R � II TOTAL AREA(ACRES) = 108.73 PEAK FLOW RATE ( CFS ) = 221.22 EA,C AVERAGED LOSS RATE, Fm (IN /HR) = .310 ' 1 WiS Ffi e il **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 407.14 TO NODE 407.14 IS CODE = 1 II 19 41 r 11 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 20.55 RAINFALL INTENSITY (INCH. /HOUR) = 2.55 EFFECTIVE STREAM AREA(ACRES) = 98.52 TOTAL STREAM AREA(ACRES) = 108.73 PEAK FLOW RATE(CFS) AT CONFLUENCE = 221.22 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 14.47 17.08 2.848 .25 6.20 2 221.22 20.55 2.549 .31 98.52 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 222.91 88.10 2 234.02 104.72 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 234.02 TIME(MINUTES) = 20.550 EFFECTIVE AREA(ACRES) = 104.72 TOTAL AREA(ACRES) = 114.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW. PROCESS FROM NODE 407.14 TO NODE 408.02 IS CODE = 3 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 72.0 INCH PIPE IS 53.2 INCHES N M PIPEFLOW VELOCITY(FEET /SEC.) = 10.4 UPSTREAM NODE ELEVATION = 1040.64 DOWNSTREAM NODE ELEVATION = 1038.92 FLOWLENGTH(FEET) = 430.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 234.02 TRAVEL TIME(MIN.) = .69 TC(MIN.) = 21.24 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 408.02 TO NODE 408.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.24 RAINFALL INTENSITY (INCH. /HOUR) = 2.50 11 20 I , 1 EFFECTIVE STREAM AREA(ACRES) = 104.72 TOTAL STREAM AREA(ACRES) = 114.93 PEAK FLOW RATE(CFS) AT CONFLUENCE = 234.02 ****************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * ** FLOW PROCESS FROM NODE 408.00 TO NODE 408.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « « < DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 580.00 UPSTREAM ELEVATION = 1054.80 DOWNSTREAM ELEVATION = 1050.00 ELEVATION DIFFERENCE = 4.80 TC = .389 *[( 580.00 ** 3.00)/( 4.80)] ** .20 = 12.935 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.365 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 17.76 TOTAL AREA(ACRES) = 6.60 PEAK FLOW RATE(CFS) = 17.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 408.01 TO NODE 408.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER_ESTIMATED PIPESIZE (NON-PRESSURE FLOW) ««< DEPTH OF FLOW IN 27.0 INCH PIPE IS 18.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.0 [li UPSTREAM NODE ELEVATION = 1041.52 DOWNSTREAM NODE ELEVATION = 1038.92 FLOWLENGTH(FEET) = 520.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 17.76 TRAVEL TIME(MIN.) = 1.44 TC(MIN.) = 14.38 f **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 414.00 TO NODE 408.02 IS CODE = 8 I » »>ADDITIONOF SUBAREA TO MAINLINE PEAK FLOW ««< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.158 SOIL CLASSIFICATION IS "B" SCHOOL SUBAREA LOSS RATE, Fm(INCH /HR) = .4500 SUBAREA AREA(ACRES) = 4.00 SUBAREA RUNOFF(CFS) = 9.75 EFFECTIVE AREA(ACRES) = 10.60 LII AVERAGED Fm(INCH /HR) = .403 TOTAL AREA(ACRES) = 10.60 PEAK FLOW RATE(CFS) = 26.28 TC(MIN) = 14.38 LII 21 LII I: 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 408.10 TO NODE 408.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.158 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .40 SUBAREA RUNOFF(CFS) = 1.11 EFFECTIVE AREA(ACRES) = 11.00 AVERAGED Fm(INCH/HR) = .391 TOTAL AREA(ACRES) = 11.00 PEAK FLOW RATE(CFS) = 27.39 TC(MIN) = 14.38 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** `- FLOW PROCESS FROM NODE 408.02 TO NODE 408.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « « < - ___ ===__= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 11 TIME OF CONCENTRATION(MINUTES) = 14.38 RAINFALL INTENSITY (INCH. /HOUR) = 3.16 EFFECTIVE STREAM AREA(ACRES) = 11.00 TOTAL STREAM AREA(ACRES) °: = 11.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 27.39 CONFLUENCE INFORMATION: • II STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 234.02 , 21.24 2.499 .31 104.72 2 27.39 ` 14.38 3.158 .39 11.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 254.89 115.72 2 233.45 81.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 254.89 TIME(MINUTES) = 21.236 T EFFECTIVE AREA(ACRES) = 115.72 TOTAL AREA(ACRES) = 125.93 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 408.02 TO NODE 413.01 IS CODE = 3 11 22 1 1101 lg 1 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 75.0 INCH PIPE IS 58.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.0 UPSTREAM NODE ELEVATION = 1038.92 DOWNSTREAM NODE ELEVATION = 1038.30 FLOWLENGTH(FEET) = 180.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 254.89 TRAVEL TIME(MIN.) = .30 TC(MIN.) = 21.54 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.01 TO NODE 413.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« « < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.54 RAINFALL INTENSITY (INCH. /HOUR) = 2.48 EFFECTIVE STREAM AREA(ACRES) = 115.72 TOTAL STREAM AREA(ACRES) = 125.93 PEAK FLOW RATE(CFS) AT CONFLUENCE = 254.89 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 254.89 21.54 2.478 .31 115.72 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 01 CONFLUENCE FORMULA USED FOR 1 STREAMS. 9N TA aQJ SUMMARY RESULTS: -- ,4$ 1450-5044. STREAM CONFLUENCE EFFECTIVE ff NUMBER Q(CFS) AREA(ACRES) L ATER I* 1 254.89 115.72 �1(E COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: Il/oAE# ¢13.0 PEAK FLOW RATE(CFS) = 254.89 TIME(MINUTES) = 21.536 EFFECTIVE AREA(ACRES) = 115.72 TOTAL AREA(ACRES) = 125.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 412.00 TO NODE 412.01 IS CODE = 2 [111 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 600.00 11 UPSTREAM ELEVATION = 1056.00 l 23 { 1 1 DOWNSTREAM ELEVATION = 1048.00 ELEVATION DIFFERENCE = 8.00 ... TC = .389 *[( 600.00 ** 3.00) /( 8.00)] ** .20 = 11.919 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.534 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 23.60 [I: TOTAL AREA(ACRES) = 8.30 PEAK FLOW RATE(CFS) = 23.60 ril **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 412.01 TO NODE 412.01 IS CODE = 1 »» )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< Ell W CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 11.92 RAINFALL INTENSITY (INCH. /HOUR) = 3.53 EFFECTIVE STREAM AREA(ACRES) = 8.30 TOTAL STREAM AREA(ACRES) = 8.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.00 TO NODE 412.01 IS CODE = 2 » » )RATIONAL METHOD INITIAL SUBAREA ANALYSIS« « < __ ---------====== DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE ill TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 350.00 UPSTREAM ELEVATION = 1053.00 ill DOWNSTREAM ELEVATION = 1048.00 ELEVATION DIFFERENCE = 5.00 TC = .389 *[( 350.00 ** 3.00)/( 5.00)] ** .20 = 9.475 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.055 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3 SUBAREA RUNOFF(CFS) = 23.85 (li TOTAL AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) = 23.85 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 412.01 TO NODE 412.01 IS CODE = 1 » »)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » )AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 9.48 RAINFALL INTENSITY (INCH. /HOUR) = 4.06 EFFECTIVE STREAM AREA(ACRES) = 7.20 TOTAL STREAM AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.85 411 24 4 m 1 II CONFLUENCE : INFORMATION. STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 1 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 23.60 11.92 3.534 .38 8.30 2 23.85 9.48 4.055 .37 7.20 li RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) RO 1 44.07 15.50 2 45.71 13.80 C OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 45.71 TIME(MINUTES) = 9.475 EFFECTIVE AREA(ACRES) = 13.80 TOTAL AREA(ACRES) = 15.50 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 412.01 TO NODE 413.01 IS CODE = 3 01 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « « < » » >USING`- COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)< « < DEPTH: OF.,. FLOW - IN 42.0 INCH PIPE IS 31.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.0 UPSTREAM NODE ELEVATION = 1040.20 DOWNSTREAM NODE ELEVATION = 1038.30 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 45.71 TRAVEL TIME(MIN.) = 1.94 TC(MIN.) = 11.42 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.01 TO NODE 413.01 IS CODE = 1 __ » » >DESIGNATE INDEPENDENT_ STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: II TIME OF CONCENTRATION(MINUTES) = 11.42 RAINFALL INTENSITY (INCH. /HOUR) = 3.63 EFFECTIVE STREAM AREA(ACRES) = 13.80 TOTAL STREAM AREA(ACRES) = 15.50 11 PEAK FLOW RATE(CFS) AT CONFLUENCE = 45.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 413.01 TO NODE 413.01 IS CODE = 7 t » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< [® DR TA from Ape 143 . o / `� 2 5 efrt i /Fit' TM /1 Pile II e _ _-- ___ _ _ - ___ __ -_ - VALUES ARE AS FOLLOWS: __ USER - SPECIFIED V TC(MIN) = 21.54 RAIN INTENSITY(INCH /HOUR) = 2.48 li EFFECTIVE AREA(ACRES) = 115.22 TOTAL AREA(ACRES) = 125.93 PEAR FLOW RATE(CFS) = 254.89 AVERAGED LOSS RATE, Fm(IN /HR) = .310 I: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.01 TO NODE 413.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < t » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: t TIME OF CONCENTRATION(MINUTES) = 21.54 RAINFALL INTENSITY (INCH. /HOUR) = 2.48 EFFECTIVE STREAM AREA(ACRES) = 115.22 TOTAL STREAM AREA(ACRES) = 125.93 PEAK FLOW RATE(CFS) AT CONFLUENCE = 254.89 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 45.71 11.42 3.626 .38 13.80 2 254.89 21.54 2.478 .31 115.22 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) It 1 252.40 74.88 2 284.45 129.02 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 284.45 TIME(MINUTES) = 21.540 EFFECTIVE AREA(ACRES) = 129.02 TOTAL AREA(ACRES) = 141.43 It **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.01 TO NODE 415.01 IS CODE = 3 li » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » »>USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< I DEPTH OF FLOW IN 84.0 INCH PIPE IS 65.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.9 UPSTREAM NODE ELEVATION = 1038.30 -y DOWNSTREAM NODE ELEVATION = 1036.86 I FLOWLENGTH(FEET) = 623.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 284.45 ►1 26 II • e TRAVEL TIME(MIN.) = 1.17 TC(MIN.) = 22.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 415.00 TO NODE 415.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.400 SOIL CLASSIFICATION IS "B" -r- SCHOOL SUBAREA LOSS RATE, Fm(INCH /HR) = .4500 SUBAREA AREA(ACRES) = 6.40 SUBAREA RUNOFF(CFS) = 11.23 EFFECTIVE AREA(ACRES) = 135.42 AVERAGED Fm(INCH/HR) = .323 TOTAL AREA(ACRES) = 147.83 PEAR FLOW RATE(CFS) = 284.45 TC(MIN) = 22.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 416.00 TO NODE 415.01 IS CODE = 8 » »>ADDITION OF SUBAREA TO_ MAINLINE PEAK FLOW « « < ___ ==_N__M_ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.400 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 6.01 EFFECTIVE AREA(ACRES) = 138.72 AVERAGED Fm(INCH /HR) = .324 TOTAL AREA(ACRES) = 151.13 PEAK FLOW RATE(CFS) = 284.45 [11 TC(MIN) = 22.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 416.10 TO NODE 415.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.400 _ SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 9.00 SUBAREA RUNOFF(CFS) = 18.83 EFFECTIVE AREA(ACRES) = 147.72 AVERAGED Fm(INCH /HR) = .309 TOTAL AREA(ACRES) = 160.13 PEAK FLOW RATE(CFS) = 284.45 TC(MIN) = 22.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 415.01 TO NODE 416.21 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< 27 » » >USING COMPUTER_ESTIMATED PIPESIZE (NON_PRESSUREFLOW) « «< DEPTH OF FLOW IN 87.0 INCH PIPE IS 68.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1036.86 DOWNSTREAM NODE ELEVATION = 1035.75 FLOWLENGTH(FEET) = 592.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 87.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 284.45 TRAVEL TIME(MIN.) = 1.21 TC(MIN.) = 23.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 416.20 TO NODE 416.21 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < ----------------------------------------- 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.327 - SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 5.80 EFFECTIVE AREA(ACRES) = 151.02 AVERAGED Fm(INCH /HR) = .311 TOTAL AREA(ACRES) = 163.43 PEAK FLOW RATE(CFS) = 284.45 ql, TC(MIN) = 23.92` **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 417.00 TO NODE 416.21 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 110 100 YEAR RAINFALL INTENSITY INCH /HOUR) = 2.327 M- - - - -N- S OIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 5.27 EFFECTIVE AREA(ACRES) = 154.02 AVERAGED Fm(INCH /HR) = .312 TOTAL AREA(ACRES) = 166.43 PEAK FLOW RATE(CFS) = 284.45 TC(MIN) = 23.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 416.30 TO NODE 416.21 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.327 M SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .70 SUBAREA RUNOFF(CFS) = 1.42 EFFECTIVE AREA(ACRES) = 154.72 AVERAGED Fm(INCH/HR) = .311 1, 28 II II TOTAL AREA(ACRES) = 167.13 = PEAK FLOW RATE(CFS) 284.45 TC(MIN) = 23.92 I *********************************************************************** FLOW PROCESS FROM NODE 416.21 TO NODE 417.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 87.0 INCH PIPE IS 65.7 INCHES --____ PIPEFLOW VELOCITY(FEET /SEC.) = 8.5 UPSTREAM NODE ELEVATION = 1035.75 1 DOWNSTREAM NODE ELEVATION = 1034.85 FLOWLENGTH(FEET) = 439.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 87.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 284.45 TRAVEL TIME(MIN.) = .86 TC(MIN.) = 24.78 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 417.01 TO NODE 417.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< 1 » » , >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< C ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF. CONCENTRATION(MINUTES) = 24.78 ii RAINFALL INTENSITY (INCH. /HOUR) = 2.28 EFFECTIVE STREAM AREA(ACRES) = 154.72 TOTAL STREAM AREA(ACRES) = 167.13 PEAK FLOW RATE(CFS) AT CONFLUENCE = 284.45 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE il NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 284.45 24.78 2.278 .31 154.72 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO D � r � � CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: USA - SPA . STREAM CONFLUENCE EFFECTIVE li NUMBER Q (CFS ) AREA(ACRES) LI1 r ' T el 1 284.45 154.72 /16.- COMPUTED COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: li PEAK FLOW RATE(CFS) = 284.45 TIME (MINUTES) = 24.781 4 EFFECTIVE AREA(ACRES) = 154.72 TOTAL AREA(ACRES) = 167.13 ii **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 419.00 TO NODE 419.01 IS CODE = 2 li 29 V II 1 » »>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< ========= DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 950.00 UPSTREAM ELEVATION = 1056.00 DOWNSTREAM ELEVATION = 1051.00 ELEVATION DIFFERENCE = 5.00 11 TC = .389 *[( 950.00 ** 3.00)/( 5.00)] ** .20 = 17.250 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.831 S OIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 10.39 TOTAL AREA(ACRES) = 4.70 PEAK FLOW RATE(CFS) = 10.39 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 420.00 TO NODE 419.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.831 - - - -N - M == SOIL CLASSIFICATION IS "B" PUBLIC PARK SUBAREA LOSS RATE, Fm(INCH/HR) = .6375 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 6.51 EFFECTIVE AREA(ACRES) = 8.00 AVERAGED Fm(INCH/HR) = .483 TOTAL AREA(ACRES) = 8.00 PEAK FLOW RATE(CFS) = 16.90 TC(MIN) = 17.25 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 419.01 TO NODE 420.01 IS CODE = 3 1 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< » »>USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< - - - - - -- ---- ----- - - - --- DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 7.5 UPSTREAM NODE ELEVATION = 1046.00 DOWNSTREAM NODE ELEVATION = 1042.30 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 11 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 16.90 TRAVEL TIME(MIN.) = .89 TC(MIN.) = 18.14 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 421.00 TO NODE 420.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 30 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.747 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 6.10 SUBAREA RUNOFF(CFS) = 13.02 EFFECTIVE AREA(ACRES) = 14.10 AVERAGED Fm(INCH /HR) = .436 TOTAL AREA(ACRES) = 14.10 PEAK FLOW RATE(CFS) = 29.32 TC(MIN) = 18.14 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 423.00 TO NODE 420.01 IS CODE = 8 10 ------ -- » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY INCH HOUR = 2.747 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 5.50 SUBAREA RUNOFF(CFS) = 11.74 EFFECTIVE AREA(ACRES) = 19.60 AVERAGED Fm(INCH/HR) = .419 31 TOTAL AREA(ACRES) = 19.60 PEAK FLOW RATE(CFS) = 41.06 TC(MIN) = 18.14 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW. PROCESS FROM NODE 420.01 TO NODE 422.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « « < DEPTH OF FLOW IN 33.0 INCH PIPE IS 22.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.3 UPSTREAM NODE ELEVATION = 1042.30 DOWNSTREAM NODE ELEVATION = 1039.80 FLOWLENGTH(FEET) = 270.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 41.06 TRAVEL TIME(MIN.) = .48 TC(MIN.) = 18.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** f FLOW PROCESS FROM NODE 422.00 TO NODE 422.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW ««< fi 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.704 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) = 13.20 11 EFFECTIVE AREA(ACRES) = 25.90 AVERAGED Fm(INCH /HR) = .408 TOTAL AREA(ACRES) = 25.90 31 11 PEAR FLOW RATE(CFS) = 53.51 TC(MIN) = 18.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 424.00 TO NODE 422.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO_ MAINLINE PEAK FLOW « < _ _ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.704 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) = 13.20 EFFECTIVE AREA(ACRES) = 32.20 AVERAGED Fm(INCH/HR) = .402 TOTAL AREA(ACRES) = 32.20 PEAK FLAW RATE(CFS) = 66.71 TC(MIN) = 18.62 * * * * * * * * * * * * * * ** * ********************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 422.01 TO NODE 422.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< N DEPTH OF FLOW IN 36.0 INCH PIPE IS 29.4 INCHES ================== PIPEFLOW VELOCITY(FEET /SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1039.80 DOWNSTREAM NODE ELEVATION = 1038.10 FLOWLENGTH(FEET) = 160.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 66.71 TRAVEL TIME(MIN.) = .25 TC(MIN.) = 18.87 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 422.02 TO NODE 422.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: M TIME OF CONCENTRATION(MINUTES) = 18.87 RAINFALL INTENSITY (INCH. /HOUR) = 2.68 EFFECTIVE STREAM AREA(ACRES) = 32.20 TOTAL STREAM AREA(ACRES) = 32.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 66.71 41 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 426.00 TO NODE 426.01 IS CODE = 2 » » >RATIONALMETHOD INITIAL SUBAREA ANALYSIS «<« DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE 32 TC = K *[(LENGTH ** 3.00) ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW- LENGTH = 1000.00 )] 11 UPSTREAM ELEVATION = 1053.80 DOWNSTREAM ELEVATION = 1048.00 ELEVATION DIFFERENCE = 5.80 TC = .389 *[( 1000.00 ** 3.00)/( 5.80)] ** .20 = 17.269 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.829 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 71! SUBAREA RUNOFF(CFS) = 22.75 TOTAL AREA(ACRES) = 10.30 PEAK FLOW RATE(CFS) = 22.75 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 425.00 TO NODE 426.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < ------------------------------------------- 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.829 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 6.40 SUBAREA RUNOFF(CFS) = 14.14 EFFECTIVE AREA(ACRES) = 16.70 AVERAGED Fm(INCH /HR) = .375 TOTAL AREA(ACRES) = 16.70 PEAK FLOW RATE(CFS) = 36.88 TC(MIN) = 17.27 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 426.01 TO NODE 422.02 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« « < » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< [I: DEPTH OF FLOW IN 33.0 INCH PIPE IS 23.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1039.50 DOWNSTREAM NODE ELEVATION = 1038.10 [I: FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 36.88 TRAVEL TIME(MIN.) = .41 TC(MIN.) = 17.68 * * * * * * * * * * * * * * * * * * * * * * * * * ** ************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 422.02 TO NODE 422.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 17.68 RAINFALL INTENSITY (INCH. /HOUR) = 2.79 33 I s: 11 II EFFECTIVE STREAM AREA(ACRES) = 16.70 TOTAL STREAM AREA(ACRES) = 16.70 PEAR FLOW RATE(CFS) AT CONFLUENCE = 36.88 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 10 1 66.71 18.87 2.683 .40 32.20 2 36.88 17.68 2.790 .38 16.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 101.96 48.90 Ell 2 102.32 46.87 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 102.32 TIME(MINUTES) = 17.677 EFFECTIVE AREA(ACRES) = 46.87 qi TOTAL AREA(ACRES) = 48.90 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 422.02 TO NODE 417.01 IS CODE = • 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< til » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 54.0 INCH PIPE IS 39.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1038.10 DOWNSTREAM NODE ELEVATION = 1034.85 FLOWLENGTH(FEET) = 900.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 ql PIPEFLOW THRU SUBAREA(CFS) = 102.32 TRAVEL TIME(MIN.) = 1.83 TC(MIN.) = 19.51 ql **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 417.01 TO NODE 417.01 IS CODE = 1 j _ » »>DESIGNATEINDEPENDENT STREAM FOR CONFLUENCE « «< _ N CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.51 li RAINFALL INTENSITY (INCH. /HOUR) = 2.63 EFFECTIVE STREAM AREA(ACRES) = 46.87 TOTAL STREAM AREA(ACRES) = 48.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 102.32 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 34 I E: II 1 FLOW PROCESS FROM NODE 417.01 TO NODE 417.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< M USER- SPECIFIED VALUES ARE AS FOLLOWS: M WA Fish TC(MIN) = 24.78 RAIN INTENSITY(INCH /HOUR) = 2.28 li EFFECTIVE AREA(ACRES) = 154.72 if 017 o / TOTAL AREA(ACRES) = 167.13 PEAK FLOW RATE(CFS) = 284 .45 gNxz1 AVERAGED LOSS RATE, Fm(IN /HR) = .310 /Arm, **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 417.01 TO NODE 417.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAMVALUES « «< M _ N =N CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 24.78 RAINFALL INTENSITY (INCH. /HOUR) = 2.28 EFFECTIVE STREAM AREA(ACRES) = 154.72 TOTAL STREAM AREA(ACRES) = 167.13 11 PEAK FLOW RATE(CFS) AT CONFLUENCE = 284.45 ' CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 2;1:° 1 102.32 19.51 2.629 .39 46.87 '';: 2 284.45 24.78 2.278 .31 154.72 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. il SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 11 1 366.27 168.69 2 370.70 201.59 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 370.70 TIME(MINUTES) = 24.780 EFFECTIVE AREA(ACRES) = 201.59 TOTAL AREA(ACRES) = 216.03 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM, NODE 417.01 TO NODE 427.01 IS CODE = 3 11 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 93.0 INCH PIPE IS 70.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1034.85 DOWNSTREAM NODE ELEVATION = 1033.74 11 35 II I! II FLOWLENGTH(FEET) = 454.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 370.70 11 TRAVEL TIME(MIN.) = .78 TC(MIN.) = 25.56 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** li FLOW PROCESS FROM NODE 427.00 TO NODE 427.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < 10 _ --- 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.236 ~M M M SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3 10 SUBAREA AREA(ACRES) = 3.40 SUBAREA RUNOFF(CFS) = 5.69 EFFECTIVE AREA(ACRES) = 204.99 AVERAGED Fm(INCH/HR) = .330 TOTAL AREA(ACRES) = 219.43 PEAK FLOW RATE(CFS) = 370.70 TC(MIN) = 25.56 gi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 427.01 TO NODE 427.01 IS CODE = 1 01 __ » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE< « < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 25.56 RAINFALL INTENSITY (INCH. /HOUR) = 2.24 EFFECTIVE STREAM AREA(ACRES) = 204.99 TOTAL STREAM AREA(ACRES) = 219.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 370.70 t **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM:NODE 428.00 TO NODE 428.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< _ - _ li DEVELOPMENT IS PUBLIC PARK M TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE )] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 11 UPSTREAM ELEVATION = 1058.50 DOWNSTREAM ELEVATION = 1055.30 ELEVATION DIFFERENCE = 3.20 TC = .483 *[( 500.00 ** 3.00)/( 3.20)] ** .20 = 15.933 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.969 SOIL CLASSIFICATION IS "B" PUBLIC PARK SUBAREA LOSS RATE, Fm(INCH /HR) = .6375 11 SUBAREA RUNOFF(CFS) = 8.39 TOTAL AREA(ACRES) = 4.00 PEAK FLOW RATE(CFS) = 8.39 I, 36 1 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 428.01 TO NODE 427.01 IS CODE = 3 ® » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< i » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< ========__.=====_===___ ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 9.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.5 UPSTREAM NODE ELEVATION = 1044.50 DOWNSTREAM NODE ELEVATION = 1033.64 FLOWLENGTH(FEET) = 550.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 8.39 TRAVEL TIME(MIN.) = 1.08 TC(MIN.) = 17.02 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 427.01 TO NODE 427.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT. STREAM FOR CONFLUENCE ««< CONFLUENCE VALUES' USED FOR INDEPENDENT STREAM ARE: --__� TIME OF CONCENTRATION(MINUTES) = 17.02 RAINFALL INTENSITY (INCH. /HOUR) = 2.85 gl EFFECTIVE STREAM AREA(ACRES) = 4.00 TOTAL STREAM AREA(ACRES) = 4.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.39 Hi • **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 428.10 TO NODE 427.01 IS CODE = 2 _ » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< _ MM_MN__ _ -- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5 -7 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1056.50 DOWNSTREAM ELEVATION = 1048.00 ELEVATION DIFFERENCE = 8.50 TC = .389 *[( 700.00 ** 3.00)/( 8.50)] ** .20 = 12.916 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.368 11 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA RUNOFF(CFS) = 16.70 TOTAL AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) = 16.70 * * * * * * * ** ******************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 427.01 TO NODE 427.01 IS CODE = 1 11 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< 11 37 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.92 RAINFALL INTENSITY (INCH. /HOUR) = 3.37 EFFECTIVE STREAM AREA(ACRES) = 6.20 TOTAL STREAM AREA(ACRES) = 6.20 PEAR FLOW RATE(CFS) AT CONFLUENCE = 16.70 Jii **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 428.20 TO NODE 428.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< _ _ DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 900.00 UPSTREAM ELEVATION = 1060.00 DOWNSTREAM ELEVATION = 1055.30 ELEVATION DIFFERENCE = 4.70 TC = .304 *[( 900.00 ** 3.00)/( 4.70)] ** .20 = 13.213 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.322 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.51 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 3.51 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** fll FLOW PROCESS FROM NODE 428.01 TO NODE 427.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< Ell UPSTREAM ELEVATION = 1055.30 DOWNSTREAM ELEVATION = 1048.00 STREET LENGTH(FEET) = 520.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 [11 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.41 [II STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .39 HALFSTREET FLOODWIDTH(FEET) = 11.38 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.98 I PRODUCT OF DEPTH &VELOCITY = 1.15 STREETFLOW TRAVELTIME(MIN) = 2.91 TC(MIN) = 16.13 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.948 SOIL CLASSIFICATION IS "B" = COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) .0750 SUBAREA AREA(ACRES) = .70 SUBAREA RUNOFF(CFS) = 1.81 1 38 1 k. II EFFECTIVE AREA(ACRES) = 1.90 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) = 4.91 II END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 12.12 FLOW VELOCITY(FEET /SEC.) = 2.96 DEPTH *VELOCITY = 1.19 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 427.01 TO NODE 427.01 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< - -----------------------== - - - -- = li CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 16.13 RAINFALL INTENSITY (INCH. /HOUR) = 2.95 EFFECTIVE STREAM AREA(ACRES) = 1.90 TOTAL STREAM AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.91 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 370.70 25.56 2.236 .33 204.99 2 8.39 17.02 2.854 .64 4.00 3 16.70 12.92 3.368 .37 6.20 4 4.91 16.13 2.948 .07 1.90 li RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: li STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 390.83 217.09 2 353.82 148.58 3 327.59 114.34 4 348.77 141.22 I COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 390.83 TIME(MINUTES) = 25.559 EFFECTIVE AREA(ACRES) = 217.09 TOTAL AREA(ACRES) = 231.53 11 ************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 427.01 TO NODE 433.01 IS CODE = 3 11 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 11 DEPTH OF FLOW IN• 96.0 INCH PIPE IS 74.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = = 9.3 (( UPSTREAM NODE ELEVATION = 1033.64 11 39 II 1 II DOWNSTREAM NODE ELEVATION = 1032.36 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 96.00 NUMBER OF PIPES = 1 I: PIPEFLOW THRU SUBAREA(CFS) = 390.83 TRAVEL TIME(MIN.) = 1.08 TC(MIN.) = 26.63 I: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< »AND COMPUTE VARIOUS CONFLUENCED STREAMVALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: y TIME OF CONCENTRATION(MINUTES) = 26.63 RAINFALL INTENSITY (INCH. /HOUR) = 2.18 l EFFECTIVE STREAM AREA(ACRES) = 217.09 TOTAL STREAM AREA(ACRES) = 231.53 PEAK FLOW RATE(CFS) AT CONFLUENCE = 390.83 V CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 3 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1/ 1 390.83 26.63 2.181 .33 217.09 � d RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO `0 CONFLUENCE".FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: ` STREAM CONFLUENCE EFFECTIVE I NUMBER Q(CFS) AREA(ACRES) 1 390.83 217.09 A 1 li COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 390.83 TIME(MINUTES) = 26.635 EFFECTIVE AREA(ACRES) = 217.09 TOTAL AREA(ACRES) = 231.53 1: _, **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.20 TO NODE 227.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< 11 DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 550.00 I UPSTREAM ELEVATION = 1065.00 DOWNSTREAM ELEVATION = 1061.00 ELEVATION DIFFERENCE = 4.00 TC = .304 *[( 550.00 ** 3.00)/( 4.00)] ** .20 = 10.155 II 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.890 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 II 40 1 II 1 SUBAREA RUNOFF(CFS) = 2.85 = TOTAL AREA(ACRES) = .83 PEAK FLOW RATE(CFS) = 2.85 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 430.02 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1061.00 DOWNSTREAM ELEVATION = 1053.00 STREET LENGTH(FEET) = 950.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 IE INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.89 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.51 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.43 PRODUCT OF DEPTH &VELOCITY = 1.04 STREETFLOW TRAVELTIME (MIN) = 6.52 TC(MIN) = 16.68 100 YEAR RAINFALL .INTENSITY(INCH /HOUR) = 2.889 .::, SOIL_ CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 4.05 EFFECTIVE AREA(ACRES) = 2.43 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.43 PEAK FLOW RATE(CFS) = 6.15 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 14.34 FLAW VELOCITY(FEET /SEC.) = 2.74 DEPTH *VELOCITY = 1.22 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.02 TO NODE 430.02 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< 11 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.68 RAINFALL INTENSITY (INCH. /HOUR) = 2.89 EFFECTIVE STREAM AREA(ACRES) = 2.43 11 TOTAL STREAM AREA(ACRES) = 2.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.15 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.00 TO NODE 229.01 IS CODE = 2 41 11 1 » » >RATIONAL METHOD INITIAL SUBAREAfANALYSIS « «< DEVELOPMENT IS COMMERCIAL 11 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 500.00 UPSTREAM ELEVATION = 1063.00 DOWNSTREAM ELEVATION = 1060.50 ELEVATION DIFFERENCE = 2.50 TC = .304 *[( 500.00 ** 3.00)/( 2.50)] ** .20 = 10.536 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.805 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 3.06 TOTAL AREA(ACRES) = .91 PEAK FLOW RATE(CFS) = 3.06 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 430.02 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « « < UPSTREAM ELEVATION = 1060.50 DOWNSTREAM ELEVATION =. 1053.00 STREET LENGTH(FEET) = 800.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.98 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.51 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.47 PRODUCT OF DEPTH &VELOCITY = 1.06 STREETFLOW TRAVELTIME(MIN) = 5.39 TC(MIN) = 15.93 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.970 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.45 SUBAREA RUNOFF(CFS) = 3.78 EFFECTIVE AREA(ACRES) = 2.36 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.36 PEAK FLOW RATE(CFS) = 6.15 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 14.34 FLOW VELOCITY(FEET /SEC.) = 2.74 DEPTH *VELOCITY = 1.22 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.02 TO NODE 430.02 IS CODE = 1 11 42 1 II 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.93 RAINFALL INTENSITY (INCH. /HOUR) = 2.97 EFFECTIVE STREAM AREA(ACRES) = 2.36 1 TOTAL STREAM AREA(ACRES) = 2.36 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.15 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 6.15 16.68 2.889 .08 2.43 2 6.15 15.93 2.970 .08 2.36 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 10 CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 12.13 4.79 2 12.19 4.68 gl COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK.FLOW.RATE(CFS) = 12.19 TIME(MINUTES) = 15.927 EFFECTIVE AREA(ACRES) = 4.68 TOTAL AREA(ACRES) = 4.79 10 _:.-. ..A.,„: . * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 430.02 TO NODE 432.11 IS CODE = 3 gt » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.4 INCHES _ -_M PIPEFLOW VELOCITY(FEET /SEC.) = 5.0 UPSTREAM NODE ELEVATION = 1046.20 DOWNSTREAM NODE ELEVATION = 1044.00 FLOWLENGTH(FEET) = 550.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 12.19 11 TRAVEL TIME(MIN.) = 1.83 TC(MIN.) = 17.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 431.00 TO NODE 432.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.782 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 43 i il SUBAREA AREA(ACRES) = 5.50 SUBAREA RUNOFF(CFS) = 13.40 EFFECTIVE AREA(ACRES) = 10.18 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 10.29 PEAK FLOW RATE(CFS) = 24.80 TC(MIN) = 17.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.11 TO NODE 432.12 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< ___________ ____ DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.1 UPSTREAM NODE ELEVATION = 1044.00 DOWNSTREAM NODE ELEVATION = 1041.75 al FLOWLENGTH(FEET) = 140.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 24.80 TRAVEL TIME(MIN.) = .23 TC(MIN.) = 17.99 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.10 TO NODE 432.12 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.760 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.90 EFFECTIVE AREA(ACRES) = 11.38 `' AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 11.49 PEAK FLOW RATE(CFS) = 27.51 TC(MIN) = 17.99 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 431.10 TO NODE 432.12 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< __________________________________________ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.760 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.90 EFFECTIVE AREA(ACRES) = 12.58 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 12.69 PEAK FLOW RATE(CFS) = 30.41 TC(MIN) = 17.99 44 Amor **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.12 TO NODE 434.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 27.0 INCH PIPE IS 19.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.9 UPSTREAM NODE ELEVATION = 1041.75 .., DOWNSTREAM NODE ELEVATION = 1037.30 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 30.41 TRAVEL TIME(MIN.) = .55 TC(MIN.) = 18.54 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.00 TO NODE 434.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< NWNM_ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.711 - SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 [I SUBAREA.AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 9.25 EFFECTIVE AREA(ACRES) = 16.48 AVERAGED INCH HR = .075 TOTAL AREA (ACRES) = 16.59 .:•: PEAK FLOW RATE (CFS) _ = 39.09 , : TC (MIN) - = . 18.54 Eli **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.01 TO NODE 433.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< -- _ » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 33.0 INCH PIPE IS 24.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1037.30 DOWNSTREAM NODE ELEVATION = 1032.40 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 39.09 TRAVEL TIME(MIN.) = 1.42 TC(MIN.) = 19.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.00 TO NODE 433.01 IS CODE = 8 __ » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.593 45 1 is 11 -1 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 13.60 EFFECTIVE AREA(ACRES) = 22.48 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 22.59 PEAR FLOW RATE(CFS) = 50.95 TC(MIN) = 19.96 gl **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.20 TO NODE 433.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) SOIL CLASSIFICATION IS "B" al COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.72 EFFECTIVE AREA(ACRES) = 23.68 AVERAGED Fm(INCH/HR) = .075 HI TOTAL AREA(ACRES) = 23.79 PEAR FLOW RATE(CFS) = 53.67 TC(MIN) = 19.96 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM ARE: TIME OF CONCENTRATION(MINUTES) = 19.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.59 EFFECTIVE STREAM AREA(ACRES) = 23.68 TOTAL STREAM AREA(ACRES) = 23.79 PEAK FLOW RATE(CFS) AT CONFLUENCE = 53.67 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** gl FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< 11 USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 26.63 RAIN INTENSITY(INCH /HOUR) = 2.18 DATA pr•n EFFECTIVE AREA(ACRES) = 217 ANh7f33t • TOTAL AREA(ACRES) = 231.53 PEAK FLOW RATE(CFS) = 390.83 �� I AVERAGED LOSS RATE, Fm(IN /HR) = .330 riff pi IS 4 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < (� 46 11 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 26.63 RAINFALL INTENSITY (INCH. /HOUR) = 2.18 EFFECTIVE STREAM.AREA(ACRES) = 217.09 TOTAL STREAM AREA(ACRES) = 231.53 PEAK FLOW RATE(CFS) AT CONFLUENCE = 390.83 111 *********************************************************************** FLOW PROCESS FROM NODE 435.00 TO NODE 433.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 450.00 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1049.00 ELEVATION DIFFERENCE = 6.00 TC = .304 *[( 450.00 ** 3.00)/( 6.00)] ** .20 = 8.302 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.390 Ell SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 Ell = SUBAREA RUNOFF(CFS) = 23.30 . TOTAL AREA(ACRES) 6.00 PEAK FLOW RATE(CFS) = 23.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< W____________________________====== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 8.30 RAINFALL INTENSITY (INCH. /HOUR) = 4.39 EFFECTIVE STREAM AREA(ACRES) = 6.00 TOTAL STREAM AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 25.15 RAIN INTENSITY(INCH /HOUR) = 2.26 EFFECTIVE AREA(ACRES) = 21.28 TOTAL AREA(ACRES) = 21.28 PEAK FLOW RATE(CFS) = 38.71 B y✓OGf AVERAGED LOSS RATE, Fm(IN /HR) = .098 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .24(INCHES /HOUR) l p f react- vir ' �I i..- 64.c) 5 . „ TA` ta G c zS ) frr !' . 47 N.nE - zL9.o/ Znfir " ********** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 433.01 IS CODE = 6 » » > COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1056.50 DOWNSTREAM ELEVATION = 1049.00 STREET LENGTH(FEET) = 1635.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 1: SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 38.71 1: STREETFLOW MODEL RESULTS: e7.4 aN,i - S / /1Vs /IM NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION tit* THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. 1: THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .68 HALFSTREET FLOODWIDTH(FEET) = 25.97 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.79 PRODUCT OF DEPTH &VELOCITY = 1.89 STREETFLOW TRAVELTIME(MIN) = 9.76 TC(MIN) = 34.91 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.854 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = 21.28 AVERAGED Fm(INCH /HR) = .098 TOTAL AREA(ACRES) = 21.28 PEAK FLOW RATE(CFS) = 38.71 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .68 HALFSTREET FLOODWIDTH(FEET) = 25.97 FLOW VELOCITY(FEET /SEC.) = 2.79 DEPTH *VELOCITY = 1.89 1: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 34.91 11 RAINFALL INTENSITY (INCH. /HOUR) = 1.85 EFFECTIVE STREAM AREA(ACRES) = 21.28 TOTAL STREAM AREA(ACRES) = 21.28 PEAK FLOW RATE(CFS) AT CONFLUENCE = 38.71 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 48 11 II NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 53.67 19.96 2.593 .08 23.68 2 390.83 26.63 2.182 .33 217.09 3 23.30 8.30 4.390 .08 6.00 4 38.71 34.91 1.854 .10 21.28 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO E CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 456.85 204.59 2 482.13 263.00 3 351.22 88.58 4 408.02 268.05 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 482.13 TIME(MINUTES) = 26.630 EFFECTIVE AREA(ACRES) = 263.00 TOTAL AREA(ACRES) = 282.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » »>USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< ~~ DEPTH OF FLOW IN 108.0 INCH PIPE IS 79.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1032.40 DOWNSTREAM NODE ELEVATION = 1032.20 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 108.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 482.13 TRAVEL TIME(MIN.) = .17 TC(MIN.) = 26.80 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM ARE: M TIME OF CONCENTRATION(MINUTES) = 26.80 RAINFALL INTENSITY (INCH. /HOUR) = 2.17 EFFECTIVE STREAM AREA(ACRES) = 263.00 AI TOTAL STREAM AREA(ACRES) = 282.60 ,j PEAK FLOW RATE(CFS) AT CONFLUENCE = 482.13 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.20 TO NODE 435.01 IS CODE = 2 1 49 I 1 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL I; TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 450.00 UPSTREAM ELEVATION = 1056.00 DOWNSTREAM ELEVATION = 1051.00 ELEVATION DIFFERENCE = 5.00 TC = .304 *[( 450.00 ** 3.00)/( 5.00)] ** .20 = 8.610 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.295 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 2.66 TOTAL AREA(ACRES) = .70 PEAK FLOW RATE(CFS) = 2.66 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.01 TO NODE 433.02 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA« «< UPSTREAM ELEVATION = 1051.00 DOWNSTREAM ELEVATION 1048.50 = STREET LENGTH(FEET) 250.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 1E SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.51 gi STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 11.02 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.50 PRODUCT OF DEPTH &VELOCITY = .95 STREETFLOW TRAVELTIME(MIN) = 1.67 TC(MIN) = 10.28 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.863 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = 1.70 EFFECTIVE AREA(ACRES) = 1.20 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 4.09 END OF SUBAREA STREETFLOW HYDRAULICS: r DEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 11.85 FLOW VELOCITY(FEET /SEC.) = 2.57 DEPTH *VELOCITY = 1.01 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 50 il II - » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUESIUSED FOR INDEPENDENT STREAM 2 ARE: II TIME OF CONCENTRATION(MINUTES) = 10.28 RAINFALL INTENSITY (INCH. /HOUR) = 3.86 EFFECTIVE. STREAM AREA(ACRES) = 1.20 TOTAL STREAM AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.09 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** t FLOW PROCESS FROM NODE 435.10 TO NODE 433.02 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< I DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 10 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1052.00 DOWNSTREAM ELEVATION = 1048.50 ELEVATION DIFFERENCE = 3.50 ji TC = .304 *[( 700.00 ** 3.00)/( 3.50)] ** .20 = 12.054 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.510 SOIL CLASSIFICATION IS "B" 01 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 6.49 TOTAL AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) = 6.49 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: Ilt TIME OF CONCENTRATION(MINUTES) = 12.05 RAINFALL INTENSITY (INCH. /HOUR) = 3.51 • EFFECTIVE STREAM AREA(ACRES) = 2.10 TOTAL STREAM AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.49 r CONFLUENCE INFORMATION: 11 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 482.13 26.80 2.173 .29 263.00 2 4.09 10.28 3.863 .08 1.20 3 6.49 12.05 3.510 .08 2.10 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE 51 II II 1 1 NUMBER Q(CFS) AREA(ACRES) 1 488.36 266.30 1: 2 360.62 103.82 3 380.71 121.58 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 488.36 TIME(MINUTES) = 26.802 EFFECTIVE AREA(ACRES) = 266.30 TOTAL AREA(ACRES) = 285.90 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 311.01 IS CODE = 3 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< -- -------- -- - --- --- DEPTH OF FLOW IN 108.0 INCH PIPE IS 82.7 INCHES 711 PIPEFLOW VELOCITY(FEET /SEC.) = 9.3 UPSTREAM NODE ELEVATION = 1032.20 DOWNSTREAM NODE ELEVATION = 1031.00 FLOWLENGTH(FEET) = 650.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 108.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 488.36 TRAVEL TIME(MIN.) = 1.16 TC(MIN.) = 27.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 312.00 TO NODE 311.01 IS CODE = 8 [1: » » > ADDITIONOF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.119 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 9.38 r- EFFECTIVE AREA(ACRES) = 271.40 1: AVERAGED Fm(INCH /HR) = .280 TOTAL AREA(ACRES) = 291.00 PEAK FLOW RATE(CFS) = 488.36 TC(MIN) = 27.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** [1: FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« « < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 27.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.12 EFFECTIVE STREAM AREA(ACRES) = 271.40 TOTAL STREAM AREA(ACRES) = 291.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 488.36 • 52 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 488.36 27.96 2.119 .28 271.40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO � . CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 488.36 271.40 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 488.36 TIME(MINUTES) = 27.962 EFFECTIVE AREA(ACRES) = 271.40 TOTAL AREA(ACRES) = 291.00 gi - - END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 291.0 EFFECTIVE AREA(ACRES) = 1; _PEAK FLOW RATE(CFS) = 488.3_ - END OF RATIONAL METHOD ANA 1 e /4 N � � 1GF C s � g oo �/e G! 1 1 1 53 1 [� LINE 'A' 100 -YR. INTERIM CONDITION a RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) (c) Copyright 1983 -88 Advanced Engineering Software (aes) Ver. 5.2A Release Date: 7/08/88 Serial # 2929 Analysis prepared by: HALL & FOREMAN INC. 3170 REDHILL AVE. , COSTA MESA, CA,92626 13 MARCH 1989, VERS. 5.2A08 -15 -88 lE AUTHORIZATION CODE 136020001 * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * * * * * ** IRE CENTER: TEMPORARY DITCH FOR 100 -YR. STORM. * INTERIM CONDITION. ASSUMES 70% PERVIOUS FOR LAND USE. T. ARROYO, 4/9/90. ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: EMPMAIN.INT 1 ATEOF STUDY: 16:15 4/ 9/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ir =======mmt— -- *TIME-OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 OI SPECIFIED.MINIMUM PIPE SIZE(INCH) = 12.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = .95 *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 0 -YEAR STORM 60-MINUTE INTENSITY(INCH /HOUR) = .920 00-YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 OI SLOPE OF INTENSITY DURATION CURVE = .6000 fil ************************************************************************** FLOW PROCESS FROM NODE 201.00 TO NODE 201.01 IS CODE = 2 0[>>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE I TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH(FEET) = 850.00 UPSTREAM ELEVATION(FEET) = 1088.00 EI DOWNSTREAM ELEVATION(FEET) = 1078.00 ELEVATION DIFFERENCE(FEET) = 10.00 TC(MIN.) = .438 *[( 850.00 ** 3.00)/( 10.00)] ** .20 = 15.817 ql 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.982 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA RUNOFF(CFS) = 19.90 II TOTAL AREA(ACRES) = 9.00 PEAK FLOW RATE(CFS) = 19.90 s.***************** * * * * * * * * * * * * * * * * * * * * ** * * * ** * * ** ale * * * * ** * * * * * * * * * * * ** *sir *�I * FLOW PROCESS FROM NODE 201.01 TO NODE 202.01 IS CODE = 5 f TRAPEZOIDAL- CHANNEL FLOW« «< 11 >» »TRAVEL TIME THRU SUBAREA « «< IVI STREAM NODE ELEVATION(FEET) = 1078.00 WNSTREAM NODE ELEVATION(FEET) = 1070.00 thNNEL LENGTH THRU SUBAREA(FEET) = 250.00 HANNEL BASE(FEET) = 50.00 "Z" FACTOR = 99.990 IM FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 CHANNEL FLOW THRU SUBAREA(CFS) = 19.90 FLOW VELOCITY(FEET /SEC.) = 2.20 FLOW DEPTH(FEET) = .14 t RAVEL TIME(MIN.) = 1.89 TC(MIN.) = 17.71 " ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 202.00 TO NODE 202.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.786 SOIL CLASSIFICATION IS "B" SU SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 BAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 9.77 EFFECTIVE AREA(ACRES) = 13.80 ' AVERAGED Fm(INCH/HR) = .525 TOTAL AREA(ACRES) = 13.80 PEAK FLOW RATE(CFS) = 28.09 TC(MIN) = 17.71 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11"LOW PROCESS FROM NODE 202.01 TO NODE 202.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< F OTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 17.71 RAINFALL INTENSITY(INCH /HR) = 2.79 AVERAGED Fm(INCH /HR) = .52 EFFECTIVE STREAM AREA(ACRES) = 13.80 TOTAL STREAM AREA(ACRES) = 13.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 28.09 11 ************************************************************************** FLOW PROCESS FROM NODE 202.10 TO NODE 202.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE I TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH(FEET) = 750.00 UPSTREAM ELEVATION(FEET) = 1088.00 DOWNSTREAM ELEVATION(FEET) = 1071.60 ELEVATION DIFFERENCE(FEET) = 16.40 TC(MIN.) = .438 *[( 750.00 ** 3.00)/( 16.40)] ** .20 = 13.291 .00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.310 . oOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 SUBAREA RUNOFF(CFS) = 19.05 TOTAL AREA(ACRES) = 7.60 PEAK FLOW RATE(CFS) = 19.05 t ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 202.11 TO NODE 202.01 IS CODE = 5 > >COMPUTE TRAPEZOIDAL- CHANNEL FLOW « «< » »TRAVEL TIME THRU SUBAREA< « < MM UPSTREAM NODE ELEVATION(FEET) = 1071.60 1t WNSTREAM NODE ELEVATION(FEET) = 1070.00 L LENGTH THRU SUBAREA(FEET) = 170.00 CHANNEL BASE(FEET) = 50.00 "Z" FACTOR = 99.990 ING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 L FLOW THRU SUBAREA(CFS) = 19.05 FLOW VELOCITY(FEET /SEC.) = 1.41 FLOW DEPTH(FEET) = .19 [ (RAVEL TIME(MIN.) = 2.01 TC(MIN.) = 15.30 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLAW PROCESS FROM NODE 202.01 TO NODE 202.01 IS CODE = 1 > »DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » »AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< • AL NUMBER OF ST = 2 _~ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 1IME OF CONCENTRATION(MIN.) = 15.30 . NFALL INTENSITY(INCH /HR) = 3.04 AVERAGED Fm(INCH/HR),= .52 - T'FECTIVE STREAM AREA(ACRES) = 7.60 )TAL STREAM AREA(ACRES) = 7.60 EAR FLOW RATE(CFS) AT CONFLUENCE = 19.05 NFALL INTENSITY AND TIME OF CONCENTRATION RATIO NFLUENCE FORMULA USED FOR 2 STREAMS. ar PEAR FLOW RATE TABLE ** Q(CFS) Tc(MIN.) Fm(INCH/HR) Ae(ACRES) 1 45.20 17.71 .525 21.40 46.06 15.30 .525 19.52 •MPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 46.06 Tc(MIN.) = 15.300 FFECTIVE AREA(ACRES) = 19.52 AVERAGED Fm(INCH /HR) = .53 OTAL AREA(ACRES) = 21.40 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 202.01 TO NODE 203.01 IS CODE = 5 » »COMPUTE TRAPEZOIDAL- CHANNE F LOW « » »TR TIME THR SU BAREA « «< VJPSTREAM NODE ELEVATION(FEET) = 1070.00 WNSTREAM NODE ELEVATION(FEET) = 1066.10 T.ANNEL LENGTH THRU SUBAREA(FEET) = 560.00 4 EL BASE(FEET) = 50.00 "Z" FACTOR = 99.990 A ING•S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 CHANNEL FLOW THRU SUBAREA(CFS) = 46.06 LOW VELOCITY(FEET /SEC.) = 1.57 FLOW DEPTH(FEET) = .35 IL AVEL TIME(MIN.) = 5.96 TC(MIN.) = 21.26 I ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ,OW PROCESS FROM NODE 203.00 TO NODE 203.01 IS CODE = 8 i » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLAW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.497 OIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA AREA(ACRES) = 7.50 SUBAREA RUNOFF(CFS) = 13.31 FFECTIVE AREA(ACRES) = 27.02 VERAGED Fm(INCH /HR) = .525 TOTAL AREA(ACRES) = 28.90 iT EAR FLOW RATE(CFS) = 47.96 C(MIN) = 21.26 91************************************************************************** FLOW PROCESS FROM NODE 203.01 TO NODE 204.01 IS CODE = 5 » » >COMPUTE TRAPEZOIDAL- CHANNEL FLOW « «< » »> TRAVEL TIME THRU SUBAREA « «< UPSTREAM NODE ELEVATION(FEET) = 1066.10 EI DOWNSTREAM NODE ELEVATION(FEET) = 1063.50 CHANNEL' LENGTH THRU SUBAREA(FEET) = 456.00 CHANNEL BASE(FEET) = 50.00 "Z" FACTOR = 99.990 'NNNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 .IANNEL FLOW THRU SUBAREA(CFS) = 47.96 FLOW VELOCITY(FEET /SEC.) = 1.58 FLOW DEPTH(FEET) = .35 TRAVEL TIME(MIN.) = 4.80 TC(MIN.) = 26.06 II ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 204.00 TO NODE 204.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 1 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.210 SOIL CLASSIFICATION IS "B" r SIDENTIAL_> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 BAREA AREA(ACRES) = 11.30 SUBAREA RUNOFF(CFS) = 17.14 FECTIVE AREA(ACRES) = 38.32 AVERAGED Fm(INCH /HR) = .525 I TOTAL AREA(ACRES) = 40.20 PEAK FLOW RATE(CFS) = 58.11 TC(MIN) = 26.06 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 204.01 TO NODE 205.01 IS CODE = 5 1 » » >COMPUTE TRAPEZOIDAL- CHANNEL FLOW««< > »> TRAVEL TIME THRU SUBAREA ««< 1 UPSTREAI4NODEELEVATION(FEET) = 1063.50 DOWNSTREAM NODE ELEVATION(FEET) = 1061.50 ;=C HANNEL LENGTH THRU SUBAREA(FEET) = 651.00 IL HANNEL BASE(FEET) = 50.00 "Z" FACTOR = 99.900 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 L FLOW THRU SUBAREA(CFS) = 58.11 LOW VELOCITY(FEET /SEC.) = 1.28 FLOW DEPTH(FEET) = .47 2AVEL TIME(MIN.) = 8.49 TC(MIN.) = 34.55 x ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 205.00 TO NODE 205.01 IS CODE = 8 »»ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < 1I O 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.866 IL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 UBAREA AREA(ACRES) = 15.60 SUBAREA RUNOFF(CFS) = 18.83 FFECTIVE AREA(ACRES) = 53.92 VERAGED Fm(INCH/HR) = .525 TOTAL AREA(ACRES) = 55.80 EAR FLOW RATE(CFS) = 65.08 C(MIN) = 34.55 Eli ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LAW PROCESS FROM NODE 205.01 TO NODE 206.01 IS CODE = 5 » »COMPUTE TRAPEZOIDAL- CHANNEL FLAW ««< » »TRAVEL TIME THRU SUBAREA « «< PSTREAM NODE ELEVATION(FEET) = 1061.50 YWNSTREAM NODE ELEVATION(FEET) = 1061.00 A L LENGTH THRU SUBAREA(FEET) = 220.00 L BASE(FEET) = 50.00 "Z" FACTOR = 99.990 IE ING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 EL FLOW THRU SUBAREA(CFS) = 65.08 FLOW VELOCITY(FEET /SEC.) = 1.17 FLOW DEPTH(FEET) = .54 [fR MTEL TIME(MIN.) = 3.15 TC(MIN.) = 37.70 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LAW PROCESS FROM NODE 206.00 TO NODE 206.01 IS CODE = 8 » »> ADDITION OF SUBAREA TO MAINLINE PEAK FLAW « «< 4 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.771 SOIL CLASSIFICATION IS "B" AE SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 UBAREA AREA(ACRES) = 12.80 SUBAREA RUNOFF(CFS) = 14.35 FFECTIVE AREA(ACRES) = 66.72 VERAGED Fm(INCH /HR) = .525 AL AREA(ACRES) = 68.60 EAK FLOW RATE(CFS) = 74.82 i TC(MIN) = 37.70 * ***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** "LOW PROCESS FROM NODE 206.01 TO NODE 206.02 IS CODE = 3 » »> COMPUTE PIPE -FLOW TRAVEL TIME THRU SUBAREA««< Ir » »USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< IL ______________=__________ DEPTH OF FLOW IN 36.0 INCH PIPE IS 28.4 INCHES rP IPE -FLOW VELOCITY(FEET /SEC.) = 12.5 STREAM NODE ELEVATION(FEET) = 1061.00 1WNSTREAM NODE ELEVATION(FEET) = 1059.00 ‚ r W LENGTH(FEET) = 140.00 MANNING'S N = .013 IMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = E- FLOW(CFS) = 74.82 TRAVEL TIME(MIN.) = .19 TC(MIN.) = 37.88 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 206.02 TO NODE 206.11 IS CODE = 5 » » >COMPUTE TRAPEZOIDAL- CHANNEL FLOW « «< »» >TRAVEL TIME THRU SUBAREA « «< -"UPSTREAM NODE ELEVATION(FEET) = 1059.00 DOWNSTREAM NODE ELEVATION(FEET) = 1057.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 520.00 CHANNEL BASE(FEET) = 4.00 "Z" FACTOR = 3.000 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 3.00 CHANNEL FLOW THRU SUBAREA(CFS) = 74.82 FLOW VELOCITY(FEET /SEC.) = 3.56 FLOW DEPTH(FEET) = 2.06 TRAVEL TIME(MIN.) = 2.44 TC(MIN.) = 40.32 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS: FROM NODE ,_206.10 TO NODE 206.11 IS CODE = 8 01 ► » >ADDITION:OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.701 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 SUBAREA AREA(ACRES) = 7.70 SUBAREA RUNOFF(CFS) = 8.15 ill EFFECTIVE AREA(ACRES) = 74.42 AVERAGED Fm(INCH /HR) = .525 TOTAL AREA(ACRES) = 76.30 PEAK FLOW RATE(CFS) = 78.76 TC(MIN) = 40.32 11 ******************************************************************* * * * * ** FLOW PROCESS FROM NODE 206.11 TO NODE 407.10 IS CODE = 5 ak » » >COMPUTE TRAPEZOIDAL- CHANNEL FLOW« «< » »> TRAVEL TIME THRU SUBAREA « «< UPSTREAM NODE ELEVATION(FEET) = 1057.00 DOWNSTREAM NODE ELEVATION(FEET) = 1052.00 t>/'t CHANNEL LENGTH THRU SUBAREA(FEET) = 1440.00 I BASE(FEET) = 4.00 "Z" FACTOR = 3.000 US C7 A 3 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 3.00 CHANNEL FLOW THRU SUBAREA(CFS) = 78.76 OW VELOCITY (FEET /SEC.) = 3.43 FLOW DEPTH(FEET) = 2.18 LA -t{rt Tw S �r TRAVEL TIME(MIN.) = 6.99 TC(MIN.) = 47.31 - Nor-E. 6 /07,/b, *** ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** f1 "LOW PROCESS FROM NODE 403.00 TO NODE 403.10 IS CODE = 2 ` » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< -=========___====== -- M :VELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE A C = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 NITIAL SUBAREA FLOW-LENGTH(FEET) = 730.00 PSTREAM ELEVATION(FEET) = 1057.50 WNSTREAM ELEVATION(FEET) = 1055.70 I ii0 LEVATION DIFFERENCE(FEET) = 1.80 1 C(MIN.) = .438 *[( 730.00 ** 3.00)/( 1.80)] ** .20 = 20.343 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.564 -� OIL CLASSIFICATION IS "B" .RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA RUNOFF(CFS) = 8.44 AL AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) = 8.44 jii ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** IF LOW PROCESS FROM NODE 403.10 TO NODE 404.10 IS CODE = 5 » »>COMPUTE TRAPEZOIDAL- CHANNEL FLOW< « < » »TRAVEL TIME THRU SUBAREA««< PSTREAM NODE ELEVATION(FEET) = 1055.70 DOWNSTREAM: NODE ELEVATION(FEET) = 1054.40 - LLENGTH:THRU SUBAREA(FEET) = 380.00 R « `L,BASE(FEET) = 50.00 "Z" FACTOR = 99.990 MANNING!SfFACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 - "YANKEE, FLOW 'THRU .SUBAREA(CFS) = 8.44 SOW VELOCITY(FEET /SEC.) = .78 FLOW DEPTH(FEET) = .16 VEL TIME(MIN.) = 8.17 TC(MIN.) = 28.51 IL -- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 404.10 TO NODE 404.10 IS CODE = 1 11 »))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< OTAL NUMBER OF STREAMS = 3 ONFWENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: IME OF CONCENTRATION(MIN.) = 28.51 RAINFALL INTENSITY(INCH /HR) = 2.09 VERAGED Fm(INCH/HR) = .52 FFECTIVE STREAM AREA(ACRES) = 4.60 TOTAL STREAM AREA(ACRES) = 4.60 I FLOW RATE(CFS) AT CONFLUENCE = 8.44 LI II ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 404.00 TO NODE 404.10 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< LI EVEL0PMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH(FEET) = 900.00 ;UPSTREAM ELEVATION(FEET) = 1057.10 DOWNSTREAM ELEVATION(FEET) = 1054.40 LEVATION DIFFERENCE(FEET) = 2.70 I II TC(MIN.) = .438 *[( 900.00 ** 3.00)/( 2.70)] ** .20 = 21.269 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.497 SOIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 JBAREA RUNOFF(CFS) = 15.86 .OTAL AREA(ACRES) = 8.94 PEAK FLOW RATE(CFS) = 15.86 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** "FLOW PROCESS FROM NODE 404.10 TO NODE 404.10 IS CODE = 1 4 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 11 ;;;iL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 21.27 RAINFALL INTENSITY(INCH/HR) = 2.50 AVERAGED Fm(INCH /HR) = .52 EFFECTIVE STREAM AREA(ACRES) = 8.94 I TOTAL STREAM AREA(ACRES) = 8.94 PEAR FLOW RATE(CFS) AT CONFLUENCE = 15.86 11 ************************************************************************** FLOW PROCESS FROM NODE 405.00 TO NODE 405.10 IS CODE = 2 » INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS SINGLE FAMILY. RESIDENTIAL -> 2 DWELLINGS /ACRE F ..; =`K *LENGTH **3.00/ELEVATION CHANGE) ] ** .20 ITIAL SUBAREA FLOW-LENGTH(FEET) = 1000.00 UPSTREAM ELEVATION(FEET) = 1060.50 DOWNSTREAM ELEVATION(FEET) = 1055.50 ELEVATION DIFFERENCE(FEET) = 5.00 TC(MIN.) = .438 *[( 1000.00** 3.00)/( 5.00)] ** .20 = 20.030 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.588 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 SUBAREA RUNOFF(CFS) = 17.44 TOTAL AREA(ACRES) = 9.39 PEAK FLOW RATE(CFS) = 17.44 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** "'FLOW PROCESS FROM NODE 405.10 TO NODE 404.10 IS CODE = 5 » » >COMPUTE TRAPEZOIDAL - CHANNEL FLOW « « < 11 >>>>>TRAVEL TIME THRU SUBAREA « «< UPSTREAM NODE ELEVATION(FEET) = 1055.50 I DOWNSTREAM NODE ELEVATION(FEET) = 1054.40 CHANNEL LENGTH THRU SUBAREA(FEET) = 150.00 CHANNEL BASE(FEET) = 50.00 "Z" FACTOR = 99.990 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 CHANNEL FLOW THRU SUBAREA(CFS) = 17.44 FLOW VELOCITY(FEET /SEC.) = 1.23 FLOW DEPTH(FEET) = .20 1AVEL TIME(MIN.) = 2.04 TC(MIN.) = 22.07 * ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ',FLOW PROCESS FROM NODE 404.10 TO NODE 404.10 IS CODE = 1 IL » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » »AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« « < )TAL NUMBER OF STREAMS = 3 I ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: I OF CONCENTRATION(MIN.) = 22.07 INFALL INTENSITY(INCH /HR) = 2.44 VERAGED Fm(INCH/HR) = .52 FFECTIVE STREAM AREA(ACRES) = 9.39 AL STREAM AREA(ACRES) = 9.39 iii"OT PEAR FLOW RATE(CFS) AT CONFLUENCE = 17.44 I INFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. [Eh PEAR FLOW RATE TABLE ** Q(CFS) Tc(MIN.) Fm(INCH /HR) Ae(ACRES) 1 41.06 21.27 .525 21.42 35.33 28.51 .525 22.93 40.84 22.07 .525 21.89 [1[ OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: EAR FLOW RATE(CFS) = 41.06 Tc(MIN.) = 21.269 FFECTIVE AREA(ACRES) = 21.42 AVERAGED Fm(INCH /HR) _ .52 TOTAL AREA(ACRES) = 22.93 it * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * LOW PROCESS FROM NODE 404.10 TO NODE 406.10 IS CODE = 5 » »COMPUTE TRAPEZOIDAL- CHANNEL FLOW « «< » »TRAVEL TIME THRU SUBAREA « «< PSTREAM NODE ELEVATION(FEET) = 1054.40 DOWNSTREAM NODE ELEVATION(FEET) = 1053.70 L LENGTH THRU SUBAREA(FEET) = 250.00 L BASE(FEET) = 4.00 "Z" FACTOR = 3.000 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 L FLOW THRU SUBAREA(CFS) = 41.06 LOW VELOCITY(FEET /SEC.) = 2.68 FLOW DEPTH(FEET) = 1.69 VEL TIME(MIN.) = 1.56 TC(MIN.) = 22.82 1 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** [»ADDITI0N FLOW PROCESS FROM NODE 406.00 TO NODE 406.10 IS CODE = 8 OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.393 OIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA AREA(ACRES) = 6.41 SUBAREA RUNOFF(CFS) = 10.78 FFECTIVE AREA(ACRES) = 27.83 VERAGED Fm(INCH /HR) = .525 'TAL AREA(ACRES) = 29.34 I LAX LOW RATE(CFS) = 46.79 C(MIN) = 22.82 1 ************************************************ * * * * * * * * * * * * * ***** * ****** FLOW PROCESS FROM NODE 406.10 TO NODE 402.10 IS CODE = 5 1 »COZ4PUTE TRAPEZOIDAL- CHANNEL FLAW « « < • » >TRAVEL TIME THRU SUBAREA « «< IE STREAM NODE ELEVATION(FEET) = 1053.70 WNSTREAM NODE ELEVATION(FEET) = 1053.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 210.00 L BASE(FEET) = 4.00 "Z" FACTOR = 3.000 ING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 CHANNEL FLOW THRU SUBAREA(CFS) = 46.79 LOW VELOCITY(FEET /SEC.) = 2.97 FLOW DEPTH(FEET) = 1.72 L VEL TIME(MIN.) = 1.18 TC(MIN.) = 24.00 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 407.00 TO NODE 402.10 IS CODE = 8 » »ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.322 miE OIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 UBAREA AREA(ACRES) = 6.50 SUBAREA RUNOFF(CFS) = 10.51 EFFECTIVE AREA(ACRES) = 34.33 ! VERAGED Fm (INCH /HR) = . 525 t + • AL AREA(ACRES) = 35.84 PEAK FLOW RATE(CFS) = 55.52 -1 1 (MIN)' = 24.00 a1 ******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** "'LOW PROCESS FROM NODE 402.10 TO NODE 402.10 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< 116 TAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: 3 --TIME OF CONCENTRATION(MIN.) = 24.00 t 1' INFALL INTENSITY(INCH/HR) = 2.32 AVERAGED Fm(INCH /HR) = .52 EFFECTIVE STREAM AREA(ACRES) = 34.33 IIIT OTAL STREAM AREA(ACRES) = 35.84 EAK FLOW RATE(CFS) AT CONFLUENCE = 55.52 qi ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 4I FLOW PROCESS FROM NODE 400.00 TO NODE 400.10 IS CODE = 2 RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< j» » DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE C = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH(FEET) = 870.00 'STREAM ELEVATION(FEET) = 1061.20 WNSTREAM ELEVATION(FEET) = 1057.10 LEVATION DIFFERENCE(FEET) = 4.10 C(MIN.) = .438 *[( 870.00 ** 3.00)/( 4.10)] ** .20 = 19.170 !^. 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.657 OIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 lig BAREA RUNOFF(CFS) = 19.19 TAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 19.19 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 400.10 TO NODE 401.10 IS CODE = 5 TRAPEZOIDAL- CHANNEL FLAW « «< _ J»cOMPUTE » »TRAVEL TIME THRU SUBAREA< « < 1APSTREAM NODE ELEVATION(FEET) = 1056.90 l WNSTREAM NODE ELEVATION(FEET) = 1056.20 CHANNEL LENGTH THRU SUBAREA(FEET) = 380.00 L BASE(FEET) = 50.00 "Z" FACTOR = 99.990 ING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 FLOW THRU SUBAREA(CFS) = 19.19 FLOW VELOCITY(FEET /SEC.) = .74 FLOW DEPTH(FEET) = .32 gi • VEL TIME(MIN.) = 8.53 TC(MIN.) = 27.70 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 401.00 TO NODE 401.10 IS CODE = 8 » »> ADDITION OF SUBAREA TO MAINLINE PEAK FLAW « « < 100 YEAR RAINFALL " INTENSITY(INCH /HOUR) = 2.130 SOIL CLASSIFICATION IS "B" Eli QSIDENTIAL - >:2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5250 IBAREA AREA(ACRES) = 8.40 SUBAREA RUNOFF(CFS) = 12.14 FFECTIVE AREA(ACRES) = 18.40 Ell VERAGED Fm(INCH /HR) = .525 f AL AREA(ACRES) = 18.40 EAK FLOW RATE(CFS) = 26.59 TC(MIN) = 27.70 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LAW PROCESS FROM NODE 401.10 TO NODE 402.10 IS CODE = 5 » »COMPUTE TRAPEZOIDAL- CHANNEL FLAW « «< » »> TRAVEL TIME THRU SUBAREA « «< 146STREAM NODE ELEVATION(FEET) = 1056.20 DOWNSTREAM NODE ELEVATION(FEET) = 1053.00 L LENGTH THRU SUBAREA(FEET) = 950.00 L BASE(FEET) = 50.00 "Z" FACTOR = 99.990 MANNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 1.00 EINNE FLOW THRU SUBAREA(CFS) = 26.59 LAW VELOCITY(FEET /SEC.) = 1.03 FLOW DEPTH(FEET) = .32 VEL TIME(MIN.) = 15.40 TC(MIN.) = 43.10 _ r ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** AW PROCESS FROM NODE 402.00 TO NODE 402.10 IS CODE = 8 L 1 » »ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < C4 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.634 ►.1 A OIL CLASSIFICATION IS "B" 3 RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 I UBAREA AREA(ACRES) = 8.20 SUBAREA RUNOFF(CFS) = 8.19 FFECTIVE AREA(ACRES) = 26.60 'WAGED Fm(INCH /HR) = .525 OTAL AREA(ACRES) = 26.60 EAK FLOW RATE(CFS) = 26.59 C(MIN) = 43.10 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 402.10 TO NODE 402.10 IS CODE = 1 ])»DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< AL NUMBER OF STREAMS = 2 NFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 43.10 gi INFALL INTENSITY(INCH /HR) = 1.63 VERAGED Fm(INCH/HR) = .52 EFFECTIVE STREAM AREA(ACRES) = 26.60 '• AL STREAM AREA(ACRES) = 26.60 1 , , EAK FLOW RATE(CFS) AT CONFLUENCE = 26.59 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 0 •NFLUENCE_FORMULA USED FOR 2 STREAMS. ** PEAK FLOW, RATE TABLE ** [It Q(CFS)..- Tc(MIN.) Fm(INCH/HR) Ae(ACRES) 79.51 24.00 .525 49.15 79.00 24.82 .525 50.12 Eli 72.19 31.36 .525 55.20 62.36 43.10 .525 62.44 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: rIpEAK FLOW RATE(CFS) = 79.51 Tc(MIN.) = 24.003 LIFFFECTIVE AREA(ACRES) = 49.15 AVERAGED Fm(INCH /HR) = .52 TOTAL AREA(ACRES) = 62.44 Cii* FLOW PROCESS FROM NODE 402.10 TO NODE 407.10 IS CODE = 5 La » »COMPUTE TRAPEZOIDAL- CHANNEL FLOW ««< » » >TRAVEL TIME THRU SUBAREA< « < [J PSTREAI 4 NODE ELEVATION(FEET) = 1053.00 WNSTREAM NODE ELEVATION(FEET) = 1052.10 EL LENGTH THRU SUBAREA(FEET) = 330.00 EL BASE(FEET) = 4.00 "Z" FACTOR = 3.000 [111E EL FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 CHANNEL FLOW THRU SUBAREA(CFS) = 79.51 11 12A W VELOCITY(FEET /SEC.) = 3.17 FLOW DEPTH(FEET) = 2.30 VEL TIME(MIN.) = 1.73 TC(MIN.) = 25.74 1 FLOW PROCESS FROM NODE 407.10 TO NODE 407.10 IS CODE = 1 1 , I» »DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< i AL NUMBER OF STREAMS = 2 ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: 'ME OF CONCENTRATION(MIN.) = 25.74 .AINFALL INTENSITY(INCH /HR) = 2.23 VERAGED Fm(INCH/HR) = .52 FFECTIVE STREAM AREA(ACRES) = 49.15 ifOT STREAM AREA(ACRES) = 62.44 EAK FLOW RATE(CFS) AT CONFLUENCE = 79.51 i ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 407.10 TO NODE 407.10 IS CODE = 7 » »USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< SER- SPECIFIED VALUES ARE AS FOLLOWS: ~~ TC(MIN.) = 47.31 RAINFALL INTENSITY(INCH/HR) = 1.55 PRax4 FFECTIVE AREA(ACRES) = 74.42 N oPE OTAL AREA(ACRES) = 76.30 PEAK FLOW RATE(CFS) = 78.76 AVERAGED LOSS RATE, Fm(INCH /HR) = .525 c407,10 OTE: EFFECTIVE AREA IS USED AS TOTAL CONTRIBUTING AREA FOR ALL CONFLUENCE ANALYSES. tivtrec..ior rit************************************************************************* LOW: FROM. NODE 407.10 = TO NODE 407.10 IS CODE 1 Elfc » »DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< »>AND; COMPUTE :.VARIOUS CONFLUENCED STREAM VALUES « «< El iOTAL NUMBER OF STREAMS = 2 N -- ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: IME OF CONCENTRATION(MIN.) = 47.31 RAINFALL INTENSITY(INCH /HR) = 1.55 VERAGED Fm(INCH /HR) = .52 FFECTIVE STREAM AREA(ACRES) = 74.42 TOTAL STREAM AREA(ACRES) = 76.30 IA EAK FLOW RATE(CFS) AT CONFLUENCE = 78.76 • INFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. L * PEAK FLOW RATE TABLE ** Q(CFS) Tc(MIN.) Fm(INCH /HR) Ae(ACRES) 150.96 25.74 .525 89.63 150.94 26.57 .525 91.91 147.26 33.15 .525 107.35 Et 140.73 44.96 .525 133.16 138.32 47.31 .525 136.86 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: LI EAK FLOW RATE(CFS) = 150.96 Tc(MIN.) = 25.738 FFECTIVE AREA(ACRES) = 89.63 AVERAGED Fm(INCH /HR) = .52 MAL AREA(ACRES) = 138.74 LII ***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ii LOW PROCESS FROM NODE 407.01 TO NODE 407.10 IS CODE = 8 L . II » »> ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< - 1170 - Y - i;AR - it;AiN;;LL INTENSITY(INCH /HOUR) = 2.227 )IL CLASSIFICATION IS "B" 'SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 UBAREA AREA(ACRES) = 10.33 SUBAREA RUNOFF(CFS) = 15.82 FFECTIVE AREA(ACRES) = 99.96 VERAGED Fm(INCH/HR) = .525 AL AREA(ACRES) = 149.07 EAK FLOW RATE(CFS) = 153.09 TC(MIN) = 25.74 :li ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** al LOW PROCESS FROM NODE 407.10 TO NODE 408.10 IS CODE = 5 » »COMPUTE TRAPEZOIDAL- CHANNEL FLOW « » »> TRAVEL TIME THRU SUBAREA « «< 1 PSTREAM NODE ELEVATION(FEET) _ 1052.10 ~M DOWNSTREAM NODE ELEVATION(FEET) = 1051.30 L LENGTH•THRU SUBAREA(FEET) = 250.00 L BASE(FEET) = 4.00 "Z" FACTOR = 3.000 ING'S.FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 CHANNEL FLOW ...THRU.SUBAREA(CFS) = 153.09 a LOW ,VELOCITY(FEET /SEC.) = 3.97 FLOW DEPTH(FEET) = 2.98 • VEL.::.TIME(MIN.) = 1.05 TC(MIN.) = 26.79 t * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * all LOW PROCESS FROM NODE 408.00 TO NODE 408.10 IS CODE = 8 » »ADDITION OF SUBAREA TO MAINLINE PEAK FLOW< « < 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.174 fllOIL CLASSIFICATION IS "B" LARESIDENTIAL-> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA AREA(ACRES) = 18.05 SUBAREA RUNOFF(CFS) = 26.79 al FFECTIVE AREA(ACRES) = 118.01 VERAGED Fm(INCH /HR) = .525 OTAL AREA(ACRES) = 167.12 PEAK FLOW RATE(CFS) = 175.13 [C(MIN) = 26.79 11 ************************************************************************* LAW PROCESS FROM NODE 408.10 TO NODE 409.10 IS CODE = 5 » TRAPEZOIDAL- CHANNEL FLOW « « < »TRAVEL TIME THRU SUBAREA« «< UPSTREAM NODE ELEVATION(FEET) = 1051.30 WNSTREAM NODE ELEVATION(FEET) = 1050.20 L LENGTH THRU SUBAREA(FEET) = 400.00 TANNEL BASE(FEET) = 4.00 "Z" FACTOR = 3.000 L ING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 HANN F THR SUB = 175.13 LOW VELOCITY(FEET /SEC.) = 3.86 FLOW DEPTH(FEET) = 3.28 A I I VEL TIME(MIN.) = 1.73 TC(MIN.) = 28.51 1 L* ***************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** OW PROCESS FROM NODE 409.00 TO NODE 409.10 IS CODE = 8 > »> ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.094 SOIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 UBAREA AREA(ACRES) = 27.50 SUBAREA RUNOFF(CFS) = 38.83 EFFECTIVE AREA(ACRES) = 145.51 VERAGED Fm(INCH /HR) = .525 TOTAL AREA(ACRES) = 194.62 PEAR FLOW RATE(CFS) = 205.48 f C(MIN) = 28.51 k******************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LOW PROCESS FROM NODE 409.10 TO NODE 410.10 IS CODE = 5 » »> COMPUTE TRAPEZOIDAL- CHANNEL FLOW ««< » »TRAVEL TIME THRU SUBAREA « «< ------------- TREAM NODE ELEVATION(FEET) = 1050.20 - DOWNSTREAM NODE ELEVATION(FEET) = 1049.50 L LENGTH THRU. - SUBAREA(FEET) = 340.00 L'- BASE(FEET) _.- -5.00' "Z" FACTOR = 3.000 MANNING'S:FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 "*IANNEL FLOW THRU SUBAREA(CFS) = 205.48 SO VELOCITY(FEET /SEC.) = 3.63 FLOW DEPTH(FEET) = 3.59 VEL TIME(MIN.) = 1.56 TC(MIN.) = 30.07 **************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 410.00 TO NODE 410.10 IS CODE = 8 _» »ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.028 SOIL CLASSIFICATION IS "B" SIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA AREA(ACRES) = 42.20 SUBAREA RUNOFF(CFS) = 57.09 FFECTIVE AREA(ACRES) .= 187.71 VERAGED Fm(INCH/HR) = .525 TOTAL AREA(ACRES).= 236.82 I RAK FLOW RATE(CFS) = 253.93 C(MIN) = 30.07 ****************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** IOW PROCESS FROM NODE 410.10 TO NODE 410.20 IS CODE = 5 L »COMPUTE TRAPEZOIDAL- CHANNEL FLOW « » »TRAVEL TIME THRU SUBAREA« «< D PSTREAM NODE ELEVATION(FEET) = 1049.50 OWNSTREAM NODE ELEVATION(FEET) = 1043.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 560.00 CHANNEL BASE(FEET) = 6.00 "Z" FACTOR = 3.000 I NNING'S FACTOR = .030 MAXIMUM DEPTH(FEET) = 4.00 CHANNEL FLOW THRU SUBAREA(CFS) = 253.93 tr i i , A OW VELOCITY(FEET /SEC.) = 7.29 FLOW DEPTH(FEET) = 2.55 VEL TIME(MIN.) = 1.28 TC(MIN.) = 31.35 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 411.00 TO NODE 410.20 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < _ M_N 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.978 OIL CLASSIFICATION IS "B" ESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .5250 SUBAREA AREA(ACRES) = 18.60 SUBAREA RUNOFF(CFS) = 24.32 l' FFECTIVE AREA(ACRES) = 206.31 AVERAGED Fm(INCH/HR) = .525 AL AREA(ACRES) = 255.42 PEAK FLOW RATE(CFS) = 269.79 C(MIN) = 31.35 ******************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 410.20 TO NODE 410.20 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: Ir IME OF CONCENTRATION(MIN.) = 31.35 .INFALL INTENSITY(INCH /HR) = •1.98 AVERAGED Fm(INCH/HR) = .52 EFFECTIVE STREAM AREA(ACRES) = 206.31 TOTAL STREAM AREA(ACRES) = 255.42 PEAK FLOW RATE(CFS) AT CONFLUENCE = 269 11END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 255.42 TC(MIN.) = 31.35 EFFECTIVE AREA(ACRES) = 206.31 AVERAGED Fm(INCH/HR)= .52 PEAK FLOW RATE(CFS) = 269.79 * ** PEAK FLOW RATE TABLE * ** Q(CFS) Tc(MIN.) Fm(INCH /HR) Ae(ACRES) 1 269.79 31.35 .525 206.31 1i C�2 266.94 32.19 .525 208.59 3 244.77 38.86 .525 224.03 4 214.86 50.81 .525 249.84 11 5 208.86 53.20 .525 253.54 11 END OF RATIONAL METHOD ANALYSIS II I 11 II LINE 'B' 100 =YR. 25 -YR. FULLY- DEVELOPED CONDITION 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 1: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER EAST SIDE OF PROMOTION CENTER att AIIU Go To 1/A * THE (Q100 - Q25) FROM THIS AREA WILL GO TO LINE "C" * 100 -YR STORM *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1E FILE NAME: FECNLB.100 TIME /DATE OF STUDY: 13:31 7/12/1990 gE USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT( YEAR ) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 IE SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 IC **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.00 TO NODE 100.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< NATURAL POOR COVER 11 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 500.00 UPSTREAM ELEVATION = 1111.00 DOWNSTREAM ELEVATION = 1102.00 ELEVATION DIFFERENCE = 9.00 TC = .525 *[( 500.00 ** 3.00)/( 9.00)] ** .20 = 14.083 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.197 11 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .2700 SUBAREA RUNOFF(CFS) = 10.41 TOTAL AREA(ACRES) = 3.95 PEAR FLOW RATE(CFS) = 10.41 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.10 TO NODE 100.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.197 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 1: SUBAREA AREA(ACRES) = 2.95 SUBAREA RUNOFF(CFS) = 8.29 EFFECTIVE AREA(ACRES) = 6.90 AVERAGED Fm(INCH /HR) = .187 TOTAL AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) = 18.70 TC(MIN) = 14.08 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.01 TO NODE 101.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 30.0 INCH PIPE IS 21.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 5.0 UPSTREAM NODE ELEVATION = 1088.40 gl DOWNSTREAM NODE ELEVATION = 1087.00 FLOWLENGTH(FEET) = 470.00 MANNINGS N = .013 ESTIMATED PIPE- DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 gi PIPEFLOW THRU SUBAREA(CFS) = 18.70 TRAVEL .TIME(MIN.) = 1.57 TC(MIN.) = 15.65 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 101.01 IS CODE = 1 gi » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.65 RAINFALL INTENSITY (INCH. /HOUR) = 3.00 EFFECTIVE STREAM AREA(ACRES) = 6.90 TOTAL STREAM AREA(ACRES) = 6.90 11 PEAK FLOW RATE(CFS) AT CONFLUENCE = 18.70 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 102.00 TO NODE 102.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< NATURAL POOR COVER TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 550.00 UPSTREAM ELEVATION = 1111.00 2 DOWNSTREAM ELEVATION = 1103.00 11 ELEVATION DIFFERENCE = 8.00 TC = .525 *[( 550.00 ** 3.00)/( 8.00)] ** .20 = 15.267 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.046 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .2700 SUBAREA RUNOFF(CFS) = 12.24 TOTAL AREA(ACRES) = 4.90 PEAK FLOW RATE(CFS) = 12.24 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 102.10 TO NODE 102.01 IS CODE = 8 1E » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.046 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 12.84 { EFFECTIVE AREA(ACRES) = 9.70 AVERAGED Fm(INCH/HR) = .174 TOTAL AREA(ACRES) = 9.70 PEAK FLOW RATE(CFS) = 25.08 TC(MIN) = 15.27 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 102.01• TO NODE 101.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< 1E DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 5.1 UPSTREAM NODE ELEVATION = 1088.60 DOWNSTREAM NODE ELEVATION = 1087.00 FLOWLENGTH(FEET) = 590.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 IE PIPEFLOW THRU SUBAREA(CFS) = 25.08 TRAVEL TIME(MIN.) = 1.91 TC(MIN.) = 17.18 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.00 TO NODE 101.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.838 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .2700 t � SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 8.09 EFFECTIVE AREA(ACRES) = 13.20 I AVERAGED Fm(INCH/HR) = .199 TOTAL AREA(ACRES) = 13.20 PEAK FLOW RATE(CFS) = 31.35 4 3 11 1 TC(MIN) = 17.18 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 101.10 TO NODE 101.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< = 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.838 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 rli SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 9.70 EFFECTIVE AREA(ACRES) = 17.10 AVERAGED Fm(INCH /HR) = .171 TOTAL AREA(ACRES) = 17.10 PEAR FLOW RATE(CFS) = 41.04 TC(MIN) = 17.18 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 101.01 IS CODE = 1 ai » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 'TIME OF_CONCENTRATION(MINUTES) = 17.18 RAINFALL INTENSITY (INCH. /HOUR) = 2.84 EFFECTIVE STREAM AREA(ACRES) = 17.10 TOTAL STREAM AREA(ACRES) = 17.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 41.04 Et CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 18.70 15.65 3.001 .19 6.90 2 41.04 17.18 2.838 .17 17.10 OE RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: ill STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 3 1 58.37 22.48 2 58.65 24.00 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: [1 PEAK FLOW RATE(CFS) = 58.65 TIME(MINUTES) = 17.182 EFFECTIVE AREA(ACRES) = 24.00 TOTAL AREA(ACRES) = 24.00 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 108.01 IS CODE = 3 I 4 II » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 42.0 INCH PIPE IS 29.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.0 UPSTREAM NODE ELEVATION = 1087.00 DOWNSTREAM NODE ELEVATION = 1079.70 11 FLOWLENGTH(FEET) = 1500.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 58.65 TRAVEL TIME(MIN.) = 3.13 TC(MIN.) = 20.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 108.00 TO NODE 108.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.567 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.60 SUBAREA RUNOFF(CFS) = 12.56 EFFECTIVE AREA(ACRES) = 29.60 AVERAGED Fm(INCH /HR) = .156 TOTAL AREA(ACRES) = 29.60 PEAK. FLOW RATE(CFS) = 64.21 TC(MIN);.. = , 20.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 111.10 TO NODE 108.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.567 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 2.42 EFFECTIVE AREA(ACRES) = 30.68 AVERAGED Fm(INCH /HR) = .153 TOTAL AREA(ACRES) = 30.68 PEAK FLOW RATE(CFS) = 66.63 TC(MIN) = 20.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 114.00 TO NODE 108.01 IS CODE = 8 1 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW ««< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.567 I SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 7.85 5 EFFECTIVE AREA(ACRES) = 34.18 AVERAGED Fm(INCH /HR) = .145 TOTAL AREA(ACRES) = 34.18 PEAR FLOW RATE(CFS) = 74.48 TC(MIN) = 20.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 115.00 TO NODE 108.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.567 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.23 SUBAREA RUNOFF(CFS) = 2.76 EFFECTIVE AREA(ACRES) = 35.41 AVERAGED Fm(INCH/HR) = .143 TOTAL AREA(ACRES) = 35.41 PEAR FLOW RATE(CFS) = 77.24 TC(MIN) = 20.31 31 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 108.01 TO NODE 107.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 36.0 INCH PIPE IS 29.0 INCHES PIPEFLOW /SEC.) = 12.7 UPSTREAM NODE ELEVATION = 1079.70 DOWNSTREAM NODE ELEVATION = 1075.90 FLOWLENGTH(FEET) = 260.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 77.24 TRAVEL TIME(MIN.) = .34 TC(MIN.) = 20.65 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 107.00 TO NODE 107.01 IS CODE = 8 11 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.541 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 7.40 SUBAREA RUNOFF(CFS) = 16.28 EFFECTIVE AREA(ACRES) = 42.81 11 AVERAGED Fm(INCH /HR) = .135 TOTAL AREA(ACRES) = 42.81 PEAR FLOW RATE(CFS) = 92.70 TC(MIN) = 20.65 6 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 107.01 TO NODE 106.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 39.0 INCH PIPE IS 30.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.5 UPSTREAM NODE ELEVATION = 1075.90 DOWNSTREAM NODE ELEVATION = 1070.55 FLOWLENGTH(FEET) = 360.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 92.70 TRAVEL TIME(MIN.) = .45 TC(MIN.) = 21.10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.10 RAINFALL INTENSITY (INCH. /HOUR) = 2.51 EFFECTIVE STREAM AREA(ACRES) = 42.81 Ul TOTAL STREAM AREA(ACRES) = 42.81 PEAR FLOW RATE(CFS) AT CONFLUENCE = 92.70 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.00 TO NODE 106.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL HI TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 500.00 ql UPSTREAM ELEVATION = 1098.00 DOWNSTREAM ELEVATION = 1095.70 ELEVATION DIFFERENCE = 2.30 TC = .304 *[( 500.00 ** 3.00)1( 2.30)] ** .20 = 10.713 i 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.767 !� SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 12.63 TOTAL AREA(ACRES) = 3.80 PEAK FLOW RATE(CFS) = 12.63 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.01 TO NODE 106.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 7 DEPTH OF FLOW IN 21.0 INCH PIPE IS 12.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.4 UPSTREAM NODE ELEVATION = 1086.00 DOWNSTREAM NODE ELEVATION = 1070.55 FLOWLENGTH(FEET) = 1050.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 12.63 TRAVEL TIME(MIN.) = 2.09 TC(MIN.) = 12.81 IL **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.10 TO NODE 106.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< J 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.385 S OIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 3 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 11.62 EFFECTIVE AREA(ACRES) = 7.70 AVERAGED Fm(INCH/HR) = .075 1 TOTAL AREA(ACRES) = 7.70 PEAK FLOW RATE(CFS) = 22.94 TC(MIN) = 12.81 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 111.00 TO NODE 106.11 IS CODE = 8 » >ADDITION SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.385 SOIL CLASSIFICATION IS "B" CQMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 2.98 EFFECTIVE AREA(ACRES) = 8.70 .IE AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 8.70 PEAK FLOW RATE(CFS) = 25.92 TC(MIN) = 12.81 -1' **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 1' TIME OF CONCENTRATION(MINUTES) = 12.81 RAINFALL INTENSITY (INCH. /HOUR) = 3.38 EFFECTIVE STREAM AREA(ACRES) = 8.70 i' TOTAL STREAM AREA(ACRES) = 8.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 25.92 8 1 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 92.70 21.10 2.509 .14 42.81 2 25.92 12.81 3.385 .07 8.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) FE 111.76 51.51 2 102.95 34.68 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 111.76 TIME(MINUTES) = 21.098 EFFECTIVE AREA(ACRES) = 51.51 TOTAL AREA(ACRES) = 51.51 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 51.51 EFFECTIVE AREA(ACRES) = 51.51 PEAR FLOW RATE(CFS) = 111.76 Ell END OF RATIONAL METHOD ANALYSIS Et [1 LI 9 1 _ L 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) 10 Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 11 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER LINE "B" [10 * Q100 -YR * BY: J.R. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 01 FILE NAME: FECSLB.100 TIME /DATE OF STUDY: 17:16 7/12/1990 01 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL * -- 01 USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 01 *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 01 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HO FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< pi USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 21.10 RAIN INTENSITY(INCH /HOUR) = 2.51 EFFECTIVE AREA(ACRES) = 51.51 01 TOTAL AREA(ACRES) = 51.51 PEAK FLOW RATE(CFS) = 111.76 AVERAGED LOSS RATE, Fm(IN /HR) = .140 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 216.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< DEPTH OF FLOW IN 42.0 INCH PIPE IS 32.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 14.2 11 1 11 UPSTREAM NODE ELEVATION = 1070.55 DOWNSTREAM NODE ELEVATION = 1061.50 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 111.76 TRAVEL TIME(MIN.) = .70 TC(MIN.) = 21.80 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** L I FLOW PROCESS FROM NODE 216.00 TO NODE 216.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.460 N SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 (11 SUBAREA AREA(ACRES) = 6.80 SUBAREA RUNOFF(CFS) = 14.60 EFFECTIVE AREA(ACRES) = 58.31 AVERAGED Fm(INCH /HR) = .132 TOTAL AREA(ACRES) = 58.31 PEAK FLOW RATE(CFS) = 122.14 TC(MIN) = 21.80 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 221.00 TO NODE 216.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< = =___ =_= _ 100 "RAINFALL INTENSITY(INCH /HOUR) = 2.460 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 3.43 pi EFFECTIVE AREA(ACRES) = 59.91 AVERAGED Fm(INCH/HR) = .131 TOTAL AREA(ACRES) = 59.91 PEAK FLOW RATE(CFS) = 125.57 TC(MIN) = 21.80 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 222.00 TO NODE 216.01 IS CODE = 8 ti » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.460 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 4.29 EFFECTIVE AREA(ACRES) = 61.91 AVERAGED Fm(INCH /HR) = .129 TOTAL AREA(ACRES) = 61.91 PEAK FLOW RATE(CFS) = 129.87 TC(MIN) = 21.80 L.I 2 I__1 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 216.01 TO NODE 220.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1061.50 DOWNSTREAM NODE ELEVATION = 1059.50 FLOWLENGTH(FEET) = 235.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 129.87 TRAVEL TIME(MIN.) = .33 TC(MIN.) = 22.13 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 220.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< __= _ 11 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 22.13 RAINFALL INTENSITY (INCH. /HOUR) = 2.44 EFFECTIVE STREAM AREA(ACRES) = 61.91 TOTAL STREAM AREA(ACRES) = 61.91 PEAK FLOW RATE(CFS) AT CONFLUENCE = 129.87 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 219.00 TO NODE 219.01 IS CODE = 2 [4 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL 12 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 720.00 UPSTREAM ELEVATION = 1087.50 DOWNSTREAM ELEVATION = 1080.00 ELEVATION DIFFERENCE = 7.50 TC = .304 *[( 720.00 ** 3.00)/( 7.50)] ** .20 = 10.526 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.807 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 30.23 TOTAL AREA(ACRES) = 9.00 PEAK FLOW RATE(CFS) = 30.23 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 219.01 TO NODE 220.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)« «< 1 3 1 DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.3 UPSTREAM NODE ELEVATION = 1072.00 DOWNSTREAM NODE ELEVATION = 1059.50 FLOWLENGTH(FEET) = 680.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 30.23 TRAVEL TIME(MIN.) = 1.01 TC(MIN.) = 11.53 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.00 TO NODE 220.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.605 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 6.20 SUBAREA RUNOFF(CFS) = 19.69 EFFECTIVE AREA(ACRES) = 15.20 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 15.20 PEAK FLOW RATE(CFS) = 48.28 TC(MIN) = 11.53 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 220.01 IS CODE = 1 Eli » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.53 RAINFALL INTENSITY (INCH. /HOUR) = 3.60 EFFECTIVE STREAM AREA(ACRES) = 15.20 TOTAL STREAM AREA(ACRES) = 15.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 48.28 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 129.87 22.13 2.438 .13 61.91 2 48.28 11.53 3.605 .08 15.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 162.19 77.11 2 150.16 47.47 4 11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 162.19 TIME(MINUTES) = 22.127 EFFECTIVE AREA(ACRES) = 77.11 TOTAL AREA(ACRES) = 77.11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 217.01 IS CODE = 3 1: » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< 1: DEPTH OF FLOW IN 54.0 INCH PIPE IS 40.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.6 UPSTREAM NODE ELEVATION = 1059.50 DOWNSTREAM NODE ELEVATION = 1056.70 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 162.19 TRAVEL TIME(MIN.) = .44 TC(MIN.) = 22.56 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.00 TO NODE 217.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< II 100 YEAR _RAINFALL INTENSITY(INCH /HOUR) = 2.410 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 7.20 SUBAREA RUNOFF(CFS) = 15.13 EFFECTIVE AREA(ACRES) = 84.31 AVERAGED Fm(INCH /HR) = .115 1# TOTAL AREA(ACRES) = 84.31 PEAK FLOW RATE(CFS) = 174.13 TC(MIN) = 22.56 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.01 TO NODE 217.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 54.0 INCH PIPE IS 43.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.7 UPSTREAM NODE ELEVATION = 1056.70 DOWNSTREAM NODE ELEVATION = 1047.66 FLOWLENGTH(FEET) = 1060.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 174.13 TRAVEL TIME(MIN.) = 1.39 TC(MIN.) = 23.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** i 5 FLOW PROCESS FROM NODE 218.00 TO NODE 217.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.325 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 7.90 SUBAREA RUNOFF(CFS) = 15.99 EFFECTIVE AREA(ACRES) = 92.21 AVERAGED Fm(INCH/HR) = .111 TOTAL AREA(ACRES) = 92.21 PEAR FLOW RATE(CFS) = 183.68 TC(MIN) = 23.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< Oli CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 23.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.32 EFFECTIVE STREAM AREA(ACRES) = 92.21 ;.. TOTAL STREAM AREA(ACRES) = 92.21 PEAK FLOW RATE(CFS) AT CONFLUENCE = 183.68 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 224.00 TO NODE 224.01 IS CODE = 2 »» >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< Ell DEVELOPMENT IS COMMERCIAL TC = K *((LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 800.00 UPSTREAM ELEVATION = 1074.50 DOWNSTREAM ELEVATION = 1068.00 ELEVATION DIFFERENCE = 6.50 TC = .304 *[( 800.00 ** 3.00)/( 6.50)] ** .20 = 11.538 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.603 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 29.21 TOTAL AREA(ACRES) = 9.20 PEAK FLOW RATE(CFS) = 29.21 LII **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 224.01 TO NODE 217.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< LII DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.2 INCHES 6 1 PIPEFLOW VELOCITY(FEET /SEC.) = 10.9 UPSTREAM NODE ELEVATION = 1054.25 DOWNSTREAM NODE ELEVATION = 1047.66 FLOWLENGTH(FEET) = 380.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 29.21 I! TRAVEL TIME(MIN.) = .58 TC(MIN.) = 12.12 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 225.00 TO NODE 217.11 IS CODE = 8 JE M » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.499 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 9.24 EFFECTIVE AREA(ACRES) = 12.20 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 12.20 PEAK FLOW RATE(CFS) = 37.59 TC(MIN) = 12.12 g **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« « < OE _ _ » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< ____ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.12 1E RAINFALL INTENSITY (INCH. /HOUR) = 3.50 EFFECTIVE STREAM AREA(ACRES) = 12.20 TOTAL STREAM AREA(ACRES) = 12.20 10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 37.59 CONFLUENCE INFORMATION: 11 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 183.68 23.96 2.325 .11 92.21 (� 2 37.59 12.12 3.499 .08 12.20 ;� RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 11 1 208.38 104.41 2 179.80 58.84 11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 208.38 TIME(MINUTES) = 23.956 7 1 EFFECTIVE AREA(ACRES) = 104.41 TOTAL AREA(ACRES) = 104.41 **** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ***** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 223.00 TO NODE 217.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.325 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 6.07 EFFECTIVE AREA(ACRES) = 107.41 AVERAGED Fm(INCH /HR) = .106 TOTAL AREA(ACRES) = 107.41 PEAK FLOW RATE(CFS) = 214.45 TC(MIN) = 23.96 RI **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 ® __ » »>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OFCONCENTRATION(MINUTES) = 23.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.32 EFFECTIVE STREAM AREA(ACRES) = 107.41 TOTAL STREAM AREA(ACRES) = 107.41 PEAK FLOW RATE(CFS) AT CONFLUENCE = 214.45 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.10 TO NODE 217.21 IS CODE = 2 ® » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 800.00 UPSTREAM ELEVATION = 1075.00 DOWNSTREAM ELEVATION = 1068.80 ELEVATION DIFFERENCE = 6.20 TC = .304 *[( 800.00 ** 3.00)/( 6.20)] ** .20 = 11.648 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.583 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 4.10 11 SUBAREA AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 4.10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.21 TO NODE 217.11 IS CODE = 6 i1 8 11 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1068.80 DOWNSTREAM ELEVATION = 1065.00 STREET LENGTH(FEET) = 800.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 JO * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.10 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 AVERAGE FLOW VELOCITY(FEET /SEC.) = 1.96 PRODUCT OF DEPTH &VELOCITY = .85 STREETFLOW TRAVELTIME(MIN) = 6.79 TC(MIN) = 18.43 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.720 SOIL CLASSIFICATION IS "B" 1 COMMERCIAL SUBAREA LASS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 Y = EFFECTIVE AREA(ACRES) 1.30 ;_:'' AVERAGED:Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 1.30. PEAK FLOW RATE(CFS) = 4.10 END OF SUBAREA STREETFLOW HYDRAULICS: 01 DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 FLOW VELOCITY(FEET /SEC.) = 1.96 DEPTH *VELOCITY = .85 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.20 TO NODE 217.11 IS CODE = 8 1E » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.720 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 6.19 EFFECTIVE AREA(ACRES) = 3.90 11 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 9.29 11 TC(MIN) = 18.43 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.00 TO NODE 217.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « « < 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.720 9 S 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.40 SUBAREA RUNOFF(CFS) = 3.33 EFFECTIVE AREA(ACRES) = 5.30 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 5.30 PEAR FLOW RATE(CFS) = 12.62 TC(MIN) = 18.43 qi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 di » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < » »AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< 01 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 18.43 RAINFALL INTENSITY (INCH. /HOUR) = 2.72 gi EFFECTIVE STREAM AREA(ACRES) = 5.30 TOTAL STREAM AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 12.62 ill CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 214.45 23.96 2.325 .11 107.41 2 > =?, _ 12.62 18.43 2.720 .08 5.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: fiE STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1E 1 225.18 112.71 2 207.07 87.95 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 01 PEAK FLOW RATE(CFS) = 225.18 TIME(MINUTES) = 23.956 EFFECTIVE AREA(ACRES) = 112.71 TOTAL AREA(ACRES) = 112.71 gl **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 227.01 IS CODE = 3 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) ««< DEPTH OF FLOW IN 69.0 INCH PIPE IS 54.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.2 UPSTREAM NODE ELEVATION = 1047.66 DOWNSTREAM NODE ELEVATION = 1045.30 FLOWLENGTH(FEET) = 590.00 MANNINGS N = .013 10 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 225.18 TRAVEL TIME(MIN.) = .96 TC(MIN.) = 24.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 227.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 24.92 1: RAINFALL INTENSITY (INCH. /HOUR) = 2.27 EFFECTIVE STREAM AREA(ACRES) = 112.71 TOTAL STREAM AREA(ACRES) = 112.71 1: PEAR FLOW RATE(CFS) AT CONFLUENCE = 225.18 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 226.00 TO NODE 226.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 850.00 UPSTREAM ELEVATION = 1074.50 DOWNSTREAMM = 1064.00 ELEVATION'.' DIFFERENCE:= v 10.50 TC` .= E `' .304* 850.00 ** 3.00)/( 10.50)]** .20 = 10.871 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.734 1: SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 27.01 TOTAL AREA(ACRES) = 8.20 PEAK FLOW RATE(CFS) = 27.01 1: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 226.01 TO NODE 227.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 11 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.6 11 UPSTREAM NODE ELEVATION = 1054.10 DOWNSTREAM NODE ELEVATION = 1045.30 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 27.01 TRAVEL TIME(MIN.) = .57 TC(MIN.) = 11.44 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 227.00 TO NODE 227.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.621 1: - SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = 14.04 EFFECTIVE AREA(ACRES) = 12.60 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 12.60 PEAK FLOW RATE(CFS) = 40.21 TC(MIN) = 11.44 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 227.01 IS CODE = 1 j » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 1 111 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION( MINUTES) = 11.44 RAINFALL INTENSITY (INCH. /HOUR) = 3.62 EFFECTIVE STREAM AREA(ACRES) = 12.60 TOTAL STREAM AREA(ACRES) = 12.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 40.21 CONFLUENCE INFORMATION: STREAK, s < PEAK; FLOW TIME : INTENSITY FM EFFECTIVE ttt NUMBER = '',:. RATE(CFS) ` (MIN.) INCH /HOUR (IN/HR) AREA(ACRES) 1 225.18 24.92 2.270 .10 112.71 2 40.21 11.44 3.621 .08 12.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE Eli NUMBER Q(CFS) AREA(ACRES) 1 250.08 125.31 2 208.14 64.37 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 250.08 TIME(MINUTES) = 24.918 EFFECTIVE AREA(ACRES) = 125.31 TOTAL AREA(ACRES) = 125.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Lil FLOW PROCESS FROM NODE 228.00 TO NODE 227.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< LII 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.270 1 12 iI 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 II SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.37 EFFECTIVE AREA(ACRES) = 126.51 AVERAGED Fm(INCH /HR) = .101 TOTAL AREA(ACRES) = 126.51 PEAR FLOW RATE(CFS) = 250.08 TC(MIN) = 24.92 1! **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 229.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 72.0 INCH PIPE IS 58.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.3 UPSTREAM NODE ELEVATION = 1045.30 30 DOWNSTREAM NODE ELEVATION = 1044.75 FLOWLENGTH(FEET) = 145.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 dB PIPEFLOW THRU SUBAREA(CFS) = 250.08 TRAVEL TIME(MIN.) = .24 TC(MIN.) = 25.15 DE **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 229.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< gE CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 25.15 RAINFALL INTENSITY (INCH. /HOUR) = 2.26 EFFECTIVE STREAM AREA(ACRES) = 126.51 gli TOTAL STREAM AREA(ACRES) = 126.51 PEAK FLOW RATE(CFS) AT CONFLUENCE = 250.08 gi CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 11 1 250.08 25.15 2.258 .10 126.51 [� RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO II CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE II NUMBER Q(CFS) AREA(ACRES) 1 250.08 126.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: I� 11 PEAK FLOW RATE(CFS) = 250.08 TIME(MINUTES) = 25.154 EFFECTIVE AREA(ACRES) = 126.51 I 13 II \ TOTAL AREA(ACRES) = 126.51 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.10 TO NODE 430.01 IS CODE = 2 » »>RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 350.00 UPSTREAM ELEVATION = 1054.00 DOWNSTREAM ELEVATION = 1048.20 ELEVATION DIFFERENCE = 5.80 TC = .304 *[( 350.00 ** 3.00)/( 5.80)] ** .20 = 7.188 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.787 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 ]1 SUBAREA RUNOFF(CFS) = 30.53 TOTAL AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) = 30.53 ]10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.20 TO NODE 430.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< ___ =____ gi 1r` 100sYEAR RAINFALL INTENSITY( INCH /HOUR) = 4.787 ' °. SOILa`, CLASSIFICATION IS "B " `. COMMERCIAL' SUBAREA LOSS RATE ,.Fm( INCH/HR ) = .0750 SUBAREA' AREA( ACRES) = 5.70 SUBAREA RUNOFF(CFS) = 24.17 JE EFFECTIVE AREA(ACRES) = 12.90 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 12.90 PEAK FLOW RATE(CFS) = 54.70 EIE TC(MIN) = 7.19 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 229.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 36.0 INCH PIPE IS 29.2 INCHES fig PIPEFLOW VELOCITY(FEET /SEC.) = 8.9 UPSTREAM NODE ELEVATION = 1048.50 DOWNSTREAM NODE ELEVATION = 1044.75 FLOWLENGTH(FEET) = 520.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 54.70 TRAVEL TIME(MIN.) = .97 TC(MIN.) = 8.16 I . 1 14 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 229.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 8.16 RAINFALL INTENSITY (INCH. /HOUR) = 4.44 1: EFFECTIVE STREAM AREA(ACRES) = 12.90 TOTAL STREAM AREA(ACRES) = 12.90 PEAR FLOW RATE(CFS) AT CONFLUENCE = 54.70 lE CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) lE 1 250.08 25.15 2.258 .10 126.51 2 54.70 8.16 4.435 .08 12.90 10 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. 10 SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 10 1 277.46 139.41 2i = << 217.80 53.95 COMPUTED, CONFLUENCE ESTIMATES ARE AS FOLLOWS: •; PEAK - FLOW `RATE (CFS) = 277.46 TIME(MINUTES) = 25.154 AU EFFECTIVE AREA(ACRES) = 139.41 TOTAL AREA(ACRES) = 139.41 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.00 TO NODE 229.01 IS CODE = 8 10 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 111 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.258 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 10.02 11 EFFECTIVE AREA(ACRES) = 144.51 AVERAGED Fm(INCH /HR) = .098 TOTAL AREA(ACRES) = 144.51 11 PEAR FLOW RATE(CFS) = 280.84 TC(MIN) = 25.15 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 230.00 TO NODE 229.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 15 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.258 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .78 SUBAREA RUNOFF(CFS) = 1.53 EFFECTIVE AREA(ACRES) = 145.29 AVERAGED Fm(INCH/HR) = .098 856 THIS TD CALL . TOTAL AREA(ACRES) = 145.29 PEAK FLOW RATE(CFS) = 282.38 TC(MIN) = 25.15 CQloo• Q Ls , /j T A/Dfl6 2 a/ ************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 229.02 IS CODE = 3 »» >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< i _ » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< _DEPTH OF FLOW IN 75.0 INCH PIPE IS 59.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.7 1 UPSTREAM NODE ELEVATION = 1044.75 DOWNSTREAM NODE ELEVATION = 1041.65 FLOWLENGTH(FEET) = 785.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 ' PIPEFLOW THRU SUBAREA(CFS) = 282.38 TRAVEL TIME(MIN.) = 1.22 TC(MIN.) = 26.37 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 313.10 TO NODE 229.02 IS CODE = 8 -= CI » » >ADDITION:OF'SUBAREA TO MAINLINE PEAK FLOW ««< = ' = _ 1004 YEAR TRAINFALL INTENSITY(INCH /HOUR) = 2.194 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .45 SUBAREA RUNOFF(CFS) = .86 E EFFECTIVE AREA(ACRES) = 145.74 AVERAGED Fm(INCH /HR) = .098 TOTAL AREA(ACRES) = 145.74 PEAR FLOW RATE(CFS) = 282.38 TC(MIN) = 26.37 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.02 TO NODE 233.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 75.0 INCH PIPE IS 59.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1041.65 DOWNSTREAM NODE ELEVATION = 1040.65 FLOWLENGTH(FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 16 1 1 PIPEFLOW THRU SUBAREA(CFS) = 282.38 TRAVEL TIME(MIN.) = .39 TC(MIN.) = 26.76 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.01 TO NODE 233.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 26.76 RAINFALL INTENSITY (INCH. /HOUR) = 2.18 UP EFFECTIVE STREAM AREA(ACRES) = 145.74 TOTAL STREAM AREA(ACRES) = 145.74 PEAR FLOW RATE(CFS) AT CONFLUENCE = 282.38 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.20 TO NODE 303.21 IS CODE = 2 01 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< HI DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 1100.00 UPSTREAM ELEVATION = 1081.50 01 DOWNSTREAM :•ELEVATION = 1065.00 ELEVATION DIFFERENCE = 16.50 01 PC =4.304 *[( ;;1100.00* *..3,00)/(.. 16.50)] ** .20 = 11.593 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.593 SOIL'` CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 01 SUBAREA RUNOFF(CFS) = 16.78 TOTAL AREA(ACRES) = 5.30 PEAR FLOW RATE(CFS) = 16.78 00 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.21 TO NODE 233.01 IS CODE = 3 [10 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.0 UPSTREAM NODE ELEVATION = 1058.00 11 DOWNSTREAM NODE ELEVATION = 1040.65 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 16.78 TRAVEL TIME(MIN.) = .33 TC(MIN.) = 11.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.00 TO NODE 233.01 IS CODE = 8 11 17 1 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.532 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 11.50 SUBAREA RUNOFF(CFS) = 35.78 EFFECTIVE AREA(ACRES) = 16.80 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 16.80 i� PEAR FLOW RATE(CFS) = 52.28 TC(MIN) = 11.93 **************************************** * * * * * * * * * * * * * * ** * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.01 TO NODE 233.01 IS CODE = 1 f » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.93 RAINFALL INTENSITY (INCH. /HOUR) = 3.53 EFFECTIVE STREAM AREA(ACRES) = 16.80 TOTAL STREAM AREA(ACRES) = 16.80 PEAR FLOW RATE(CFS) AT CONFLUENCE = 52.28 II CONFLUENCE INFORMATION: STREAM = ;r:;.PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 282.38 14 8 38 26.76 2.175 .10 145.74 5 2 52.28 11.93 3.532 .08 16.80 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) I; 1 314.13 162.54 2 260.37 81.76 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 314.13 TIME(MINUTES) = 26.757 EFFECTIVE AREA(ACRES) = 162.54 TOTAL AREA(ACRES) = 162.54 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 313.00 TO NODE 233.01 IS CODE = 8 11 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.175 SOIL CLASSIFICATION IS "B" 1 18 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .58 SUBAREA RUNOFF(CFS) = 1.10 EFFECTIVE AREA(ACRES) = 163.12 AVERAGED Fm(INCH /HR) = .096 TOTAL AREA(ACRES) = 163.12 1 PEAK FLOW RATE(CFS) = 314.13 TC(MIN) = 26.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 307.00 TO NODE 233.01 IS CODE = 8 » »> ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.175 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0750 SUBAREA AREA(ACRES) = 2.20 SUBAREA RUNOFF(CFS) = 4.16 EFFECTIVE AREA(ACRES) = 165.32 AVERAGED Fm(INCH /HR) = .095 TOTAL AREA(ACRES) = 165.32 PEAK FLOW RATE(CFS) = 314.13 TC(MIN) = 26.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** PLOW PROCESS FROM NODE 313.20 TO NODE 233.01 IS CODE = 8 » > »ADDITION OF. SUBAREA TO MAINLINE PEAK FLOW « «< 100: YEAR °RAINFALL INTENSITY( INCH /HOUR) = 2.175 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.08 EFFECTIVE AREA(ACRES) = 166.42 AVERAGED Fm(INCH /HR) = .095 [1: TOTAL AREA(ACRES) = 166.42 PEAK FLOW RATE(CFS) = 314.13 TC(MIN) = 26.76 Eli **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.01 TO NODE 306.01 IS CODE = 3 [II » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< [II DEPTH OF FLOW IN 78.0 INCH PIPE IS 62.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1040.65 ® DOWNSTREAM NODE ELEVATION = 1039.50 FLOWLENGTH(FEET) = 290.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 78.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 314.13 TRAVEL TIME(MIN.) = .44 TC(MIN.) = 27.19 19 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 27.19 RAINFALL INTENSITY (INCH. /HOUR) = 2.15 EFFECTIVE STREAM AREA(ACRES) = 166.42 TOTAL STREAM AREA(ACRES) = 166.42 i PEAK FLOW RATE(CFS) AT CONFLUENCE = 314.13 gl CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 314.13 27.19 2.154 .10 166.42 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO no CONFLUENCE FORMULA USED FOR 1 STREAMS. t SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) pl _: 1 314.13 166.42 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: no PEAK FLOW RATE(CFS) = 314.13 TIME(MINUTES) = 27.194 Ul EFFECTIVE AREA(ACRES) = 166.42 TOTAL AREA(ACRES) = 166.42 01 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 166.42 EFFECTIVE AREA(ACRES) = 166.42 DI PEAK FLOW RATE(CFS) = 314.13 END OF RATIONAL METHOD ANALYSIS 01 01 01 11 1 HI 20 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN t * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER EAST SIDE OF PROMOTION CENTER //NE 0 * 25 -YR STORM * BY:J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** gl FILE NAME: FECNLB.025 TIME /DATE OF STUDY: 17 :21 7/10/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: = -- *TIME -OF- CONCENTRATION MODEL * -- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAH STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 K`. 100- YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 CO1UTED RAINFALL INTENSITY DATA: STORM EVENT . =. 25.00:'.: =1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE;. OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.00 TO NODE 100.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< NATURAL POOR COVER TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 EI INITIAL SUBAREA FLOW - LENGTH = 500.00 UPSTREAM ELEVATION = 1111.00 DOWNSTREAM ELEVATION = 1102.00 I ELEVATION DIFFERENCE = 9.00 TC = .525 *[( 500.00 ** 3.00) /( 9.00)] ** .20 = 14.083 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.543 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .2700 SUBAREA RUNOFF(CFS) = 8.08 TOTAL AREA(ACRES) = 3.95 PEAK FLOW RATE(CFS) = 8.08 1 [1 * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.10 TO NODE 100.01 IS CODE = 8 11 » »>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.543 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.95 SUBAREA RUNOFF(CFS) = 6.55 EFFECTIVE AREA(ACRES) = 6.90 i AVERAGED Fm(INCH /HR) = .187 TOTAL AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) = 14.63 TC(MIN) = 14.08 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 100.01 TO NODE 101.01 IS CODE = 3 01 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 27.0 INCH PIPE IS 19.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.7 UPSTREAM NODE ELEVATION = 1088.40 DOWNSTREAM NODE ELEVATION = 1087.00 FLOWLENGTH(FEET) = 470.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 14.63 TRAVEL TIME(MIN.) = 1.67 TC(MIN.) = 15.76 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 101.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.76 RAINFALL INTENSITY (INCH. /HOUR) = 2.38 EFFECTIVE STREAM AREA(ACRES) = 6.90 TOTAL STREAM AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.63 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 102.00 TO NODE 102.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< NATURAL POOR COVER TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 550.00 UPSTREAM ELEVATION = 1111.00 2 1 DOWNSTREAM ELEVATION = 1103.00 ELEVATION DIFFERENCE = 8.00 TC = .525 *[( 550.00 ** 3.00)/( 8.00)] ** .20 = 15.267 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.423 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH/HR) = .2700 SUBAREA RUNOFF(CFS) = 9.49 TOTAL AREA(ACRES) = 4.90 PEAR FLOW RATE(CFS) = 9.49 10 * ** skit*********************************** *** * * * * * * * * * * * * * * ** ** * * * * * * * * ** FLOW PROCESS FROM NODE 102.10 TO NODE 102.01 IS CODE = 8 gE » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.423 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 10.14 EFFECTIVE AREA(ACRES) = 9.70 AVERAGED Fm(INCH/HR) = .174 TOTAL AREA(ACRES) = 9.70 EI PEAR FLOW RATE(CFS) = 19.64 TC(MIN) = 15.27 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 102.01 TO NODE 101.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 30.0 INCH PIPE IS 23.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.8 UPSTREAM NODE ELEVATION = 1088.60 DOWNSTREAM NODE ELEVATION = 1087.00 01 FLOWLENGTH(FEET) = 590.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 19.64 TRAVEL TIME(MIN.) = 2.04 TC(MIN.) = 17.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.00 TO NODE 101.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< gi 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.247 SOIL CLASSIFICATION IS "B" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH/HR) = .2700 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 6.23 EFFECTIVE AREA(ACRES) = 13.20 AVERAGED Fm(INCH /HR) = .199 TOTAL AREA(ACRES) = 13.20 PEAR FLOW RATE(CFS) = 24.33 �, 3 1 TC(MIN) = 17.31 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.10 TO NODE 101.01 IS CODE = 8 li » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW ««< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.247 I: SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 7.63 lE EFFECTIVE AREA(ACRES) = 17.10 AVERAGED Fm(INCH /HR) = .171 TOTAL AREA(ACRES) = 17.10 PEAK FLOW RATE(CFS) = 31.96 igi TC(MIN) = 17.31 31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 101.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: Ul TIME OF CONCENTRATION(MINUTES) = 17.31 RAINFALL INTENSITY (INCH. /HOUR) = 2.25 EFFECTIVE STREAM AREA(ACRES) = 17.10 gl TOTAL STREAM AREA(ACRES) = 17.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 31.96 CONFLUENCE INFORMATION: 01 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 14.63 15.76 2.378 .19 6.90 2 31.96 17.31 2.247 .17 17.10 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE I NUMBER Q(CFS) AREA(ACRES) 1 45.55 22.47 2 45.72 24.00 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 45.72 TIME(MINUTES) = 17.306 EFFECTIVE AREA(ACRES) = 24.00 TOTAL AREA(ACRES) = 24.00 I *********************************************************************** * * * * * * * ** FLOW PROCESS FROM NODE 101.01 TO NODE 108.01 IS CODE = 3 I 4 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 39.0 INCH PIPE IS 26.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 7.5 UPSTREAM NODE ELEVATION = 1087.00 DOWNSTREAM NODE ELEVATION = 1079.70 FLOWLENGTH(FEET) = 1500.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 45.72 TRAVEL TIME(MIN.) = 3.31 TC(MIN.) = 20.62 15 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 108.00 TO NODE 108.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 10 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.023 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 10 SUBAREA AREA(ACRES) = 5.60 SUBAREA RUNOFF(CFS) = 9.82 EFFECTIVE AREA(ACRES) = 29.60 AVERAGED Fm(INCH /HR) = .156 TOTAL AREA(ACRES) = 29.60 ' -:. PEAK FLOW RATE(CFS) = 49.73 TC(MIN) = 20.62 gi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 111.10 TO NODE 108.01 IS CODE = 8 qi » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.023 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 1.89 qi EFFECTIVE AREA(ACRES) = 30.68 AVERAGED Fm(INCH/HR) = .153 TOTAL AREA(ACRES) = 30.68 PEAK FLOW RATE(CFS) = 51.62 1 TC(MIN) = 20.62 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 114.00 TO NODE 108.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.023 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 6.14 5 EFFECTIVE AREA(ACRES) = 34.18 AVERAGED Fm(INCH /HR) = .145 1' TOTAL AREA(ACRES) = 34.18 PEAK FLOW RATE(CFS) = 57.76 TC(MIN) = 20.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 115.00 TO NODE 108.01 IS CODE = 8 - 1! » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW ««< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.023 SOIL CLASSIFICATION IS "B" ' COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES)'= 1.23 SUBAREA RUNOFF(CFS) = 2.16 EFFECTIVE AREA(ACRES) = 35.41 AVERAGED Fm(INCH/HR) = .143 TOTAL AREA(ACRES) = 35.41 Ell PEAK FLOW RATE(CFS) = 59.92 TC(MIN) = 20.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 108.01 TO NODE 107.01 IS CODE = 3 ! » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED - PIPESIZE (NON - PRESSURE FLOW) « «< Ell , DEPTH OF FLOW IN 33.0 INCH PIPE IS 26.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.9 UPSTREAM. NODE ELEVATION = 1079.70 DOWNSTREAM NODE ELEVATION = 1075.90 FLOWLENGTH(FEET) = 260.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 59.92 [11E TRAVEL TIME(MIN.) = .36 TC(MIN.) = 20.98 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 107.00 TO NODE 107.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< fll 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.002 SOIL CLASSIFICATION IS "A" 011 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 7.40 SUBAREA RUNOFF(CFS) = 12.69 EFFECTIVE AREA(ACRES) = 42.81 AVERAGED Fm(INCH/HR) = .135 LII TOTAL AREA(ACRES) = 42.81 PEAR FLOW RATE(CFS) = 71.93 TC(MIN) = 20.98 6 I -� * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 107.01 TO NODE 106.11 IS CODE = 3 t » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 36.0 INCH PIPE IS 26.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.7 UPSTREAM NODE ELEVATION = 1075.90 DOWNSTREAM NODE ELEVATION = 1070.55 FLOWLENGTH(FEET) = 360.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 71.93 TRAVEL TIME(MIN.) = .47 TC(MIN.) = 21.46 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.46 RAINFALL INTENSITY (INCH. /HOUR) = 1.98 EFFECTIVE STREAM AREA(ACRES) = 42.81 TOTAL STREAM AREA(ACRES) = 42.81 PEAK FLOW RATE(CFS) AT CONFLUENCE = 71.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE. 106.00 TO NODE 106.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< 1: DEVELOPMENT IS COMMERCIAL 1: TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 500.00 UPSTREAM ELEVATION = 1098.00 DOWNSTREAM ELEVATION = 1095.70 ELEVATION DIFFERENCE = 2.30 TC = .304 *[( 500.00 ** 3.00)/( 2.30)] ** .20 = 10.713 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.997 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 9.99 TOTAL AREA(ACRES) = 3.80 PEAR FLOW RATE(CFS) = 9.99 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 106.01 TO NODE 106.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< 11 »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 1 7 + q 1 DEPTH OF FLOW IN 18.0 INCH PIPE IS 12.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 7.8 1 UPSTREAM NODE ELEVATION = 1086.00 DOWNSTREAM NODE ELEVATION = 1070.55 FLOWLENGTH(FEET) = 1050.00 MANNINGS N = .013 11 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 9.99 TRAVEL TIME(MIN.) = 2.24 TC(MIN.) = 12.95 JO **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.10 TO NODE 106.11 IS CODE = 8 11 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.674 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 9.12 01 EFFECTIVE AREA(ACRES) = 7.70 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 7.70 UI PEAK FLOW RATE(CFS) = 18.01 TC(MIN) = 12.95 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 111.00 TO NODE 106.11 IS CODE = 8 HI » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 ' YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.674 SOIL CLASSIFICATION IS "B" 01 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 2.34 EFFECTIVE AREA(ACRES) = 8.70 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 8.70 PEAR FLOW RATE(CFS) = 20.35 AM TC(MIN) = 12.95 Ul **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 11 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.95 RAINFALL INTENSITY (INCH. /HOUR) = 2.67 EFFECTIVE STREAM AREA(ACRES) = 8.70 TOTAL STREAM AREA(ACRES) = 8.70 PEAR FLOW RATE(CFS) AT CONFLUENCE = 20.35 8 1 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 1 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 71.93 21.46 1.976 .14 42.81 2 20.35 12.95 2.674 .07 8.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 86.82 51.51 2 80.26 34.54 OE COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 86.82 TIME(MINUTES) = 21.455 EFFECTIVE AREA(ACRES) = 51.51 TOTAL AREA(ACRES) = 51.51 gl _= END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 51.51 gi EFFECTIVE AREA(ACRES) = 51.51 PEAK FLOW RATE(CFS) = 86.82 END OF RATIONAL METHOD ANALYSIS gl DATA USED A S u5ER - 5 PeCip/eD OA/ Mb E /o6.// 11 . 1 9 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: 11 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER LINE "B" * 25 -YR STORM f' * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** di FILE NAME: FECSLB.025 TIME /DATE OF STUDY: 17 :26 7/10/1990 01 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 01- COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 a **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 106.11 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< al USER- SPECIFIED VALUES ARE AS FOLLOWS: 1MTA F-12-0 TC(MIN) = 21.45 RAIN INTENSITY(INCH /HOUR) = 1.98 EFFECTIVE AREA(ACRES) = 51.51 1't'oG I�b, TOTAL AREA(ACRES) = 51.51 PEAK FLOW RATE(CFS) = �, F 86.82 END o� AVERAGED LOSS RATE, Fm(IN /HR) = .140 FEtN Ft 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 106.11 TO NODE 216.01 IS CODE = 3 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 39.0 INCH PIPE IS 28.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.4 i,1 1 UPSTREAM NODE ELEVATION = 1070.55 DOWNSTREAM NODE ELEVATION = 1061.50 I FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 86.82 TRAVEL TIME(MIN.) = .74 TC(MIN.) = 22.19 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 216.00 TO NODE 216.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.936 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 6.80 SUBAREA RUNOFF(CFS) = 11.39 EFFECTIVE AREA(ACRES) = 58.31 AVERAGED Fm(INCH/HR) = .132 TOTAL AREA(ACRES) = 58.31 PEAR FLOW RATE(CFS) = 94.64 TC(MIN) = 22.19 31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW_ PROCESS FROM NODE 221.00 TO NODE 216.01 IS CODE = 8 III >ADDITION.OF SUBAREA TO MAINLINE PEAR FLOW « «< °;.25- : YEAR::RAINFALL INTENSITY(INCH /HOUR) = 1.936 SOIL;; CLASSIFICATION IS "B" ,COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 2.68 3 EFFECTIVE AREA(ACRES) = 59.91 AVERAGED Fm(INCH /HR) = .131 TOTAL AREA(ACRES) = 59.91 PEAK FLOW RATE(CFS) = 97.32 TC(MIN) = 22.19 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 222.00 TO NODE 216.01 IS CODE = 8 Ell » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.936 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 3.35 EFFECTIVE AREA(ACRES) = 61.91 AVERAGED Fm(INCH/HR) = .129 TOTAL AREA(ACRES) = 61.91 PEAR FLOW RATE(CFS) = 100.67 [II TC(MIN) = 22.19 LII 2 0 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 216.01 TO NODE 220.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 45.0 5 0 INCH PIPE IS 34.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.2 UPSTREAM NODE ELEVATION = 1061.50 DOWNSTREAM NODE ELEVATION = 1059.50 FLOWLENGTH(FEET) = 235.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 100.67 TRAVEL TIME(MIN.) = .35 TC(MIN.) = 22.54 Oi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 220.01 IS CODE = 1 01 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< _______ 01 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 22.54 RAINFALL INTENSITY (INCH. /HOUR) = 1.92 EFFECTIVE STREAM AREA(ACRES) = 61.91 01 TOTAL STREAM AREA(ACRES) = 61.91 PEAK, FLOW RATE(CFS) AT CONFLUENCE = 100.67 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 219.00 TO NODE 219.01 IS CODE = 2 al » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL HI TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 720.00 gi UPSTREAM ELEVATION = 1087.50 DOWNSTREAM ELEVATION = 1080.00 ELEVATION DIFFERENCE = 7.50 TC = .304 *[( 720.00 ** 3.00)/( 7.50)] ** .20 = 10.526 HI 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.029 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 23.92 TOTAL AREA(ACRES) = 9.00 PEAK FLOW RATE(CFS) = 23.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 219.01 TO NODE 220.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 3 11 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1072.00 DOWNSTREAM NODE ELEVATION = 1059.50 FLOWLENGTH(FEET) = 680.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.92 TRAVEL TIME(MIN.) = 1.07 TC(MIN.) = 11.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.00 TO NODE 220.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.857 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 6.20 SUBAREA RUNOFF(CFS) = 15.53 EFFECTIVE AREA(ACRES) = 15.20 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 15.20 PEAR FLOW RATE(CFS) = 38.06 TC(MIN) = 11.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 220.01 IS CODE = 1 » » >DESIGNATE:.`INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND::COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< _ s CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.60 RAINFALL INTENSITY (INCH. /HOUR) = 2.86 EFFECTIVE STREAM AREA(ACRES) = 15.20 TOTAL STREAM AREA(ACRES) = 15.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 38.06 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) Ell 1 100.67 22.54 1.918 .13 61.91 2 38.06 11.60 2.857 .08 15.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 125.88 77.11 2 117.06 47.05 4 11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 125.88 TIME(MINUTES) = 22.544 EFFECTIVE AREA(ACRES) = 77.11 TOTAL AREA(ACRES) = 77.11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 220.01 TO NODE 217.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 15 DEPTH OF FLOW IN 48.0 INCH PIPE IS 38.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.7 UPSTREAM NODE ELEVATION = 1059.50 DOWNSTREAM NODE ELEVATION = 1056.70 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 125.88 TRAVEL TIME(MIN.) = .47 TC(MIN.) = 23.01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.00 TO NODE 217.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< _ 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.894 SOIL CLASSIFICATION IS "B" fil COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 7.20 SUBAREA RUNOFF(CFS) = 11.79 EFFECTIVE AREA(ACRES) = 84.31 AVERAGED Fm(INCH /HR) = .115 ql TOTAL AREA(ACRES) = 84.31 PEAK FLOW RATE(CFS) = 135.02 TC(MIN) = 23.01 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.01 TO NODE 217.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 51.0 INCH PIPE IS 37.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.1 11 UPSTREAM NODE ELEVATION = 1056.70 DOWNSTREAM NODE ELEVATION = 1047.66 FLOWLENGTH(FEET) = 1060.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 135.02 TRAVEL TIME(MIN.) = 1.46 TC(MIN.) = 24.47 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 5 ►1 FLOW PROCESS FROM NODE 218.00 TO NODE 217.11 IS CODE = 8 »» , ADDITION OF SUBAREA TO MAINLINE PEAK FLOW ««< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.825 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 7.90 SUBAREA RUNOFF(CFS) = 12.45 EFFECTIVE AREA(ACRES) = 92.21 AVERAGED Fm(INCH/HR) = .111 TOTAL AREA(ACRES) = 92.21 PEAK FLOW RATE(CFS) = 142.26 TC(MIN) = 24.47 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 »» , DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< = === = = = = = == CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 24.47 RAINFALL INTENSITY (INCH. /HOUR) = 1.83 ?` EFFECTIVE STREAM AREA(ACRES) = 92.21 TOTAL STREAM AREA(ACRES) = 92.21 PEAR. FLOW RATE(CFS) AT CONFLUENCE = 142.26 *** k******** ak **************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** s t 3 :;FLOW, _PROCESS :, FROM NODE:';. 224.00 TO NODE _ 224.01 IS CODE = 2 - »> »RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 800.00 LB UPSTREAM ELEVATION = 1074.50 DOWNSTREAM ELEVATION = 1068.00 Ell ELEVATION DIFFERENCE = 6.50 TC = .304 *[( 800.00 ** 3.00)/( 6.50)] ** .20 = 11.538 25 YEAR RAINFALL INTENSITY INCH /HOUR = 2.866 SOIL CLASSIFICATION IS "B" Ell COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 23.11 TOTAL AREA(ACRES) = 9.20 PEAK FLOW RATE(CFS) = 23.11 * * * * * ** ********************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 224.01 TO NODE 217.11 IS CODE = 3 » » PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 1 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES 6 4 II PIPEFLOW VELOCITY(FEET /SEC.) = 10.3 UPSTREAM NODE ELEVATION = 1054.25 11 DOWNSTREAM NODE ELEVATION = 1047.66 FLOWLENGTH(FEET) = 380.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.11 TRAVEL TIME(MIN.) = .62 TC(MIN.) = 12.16 lE **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 225.00 TO NODE 217.11 IS CODE = 8 HI » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.778 01 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 7.30 EFFECTIVE AREA(ACRES) = 12.20 z AVERAGED Fm(INCH /HR) = .075 1 TOTAL AREA(ACRES) = 12.20 PEAK FLOW RATE(CFS) = 29.68 01 TC(MIN) = 12.16 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 01 FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 » » >DESIGNATE; STREAM FOR CONFLUENCE « «< 01 » » >AND'. COMPUTE ;: °VARIOUS CONFLUENCED STREAM VALUES « «< .., _., = if CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: Ar 4.,TIME >OF CONCENTRATION(MINUTES) = 12.16 `RAINFALL INTENSITY- (INCH. /HOUR) = 2.78 EFFECTIVE STREAM AREA(ACRES) = 12.20 TOTAL STREAM AREA(ACRES) = 12.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 29.68 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 142.26 24.47 1.825 .11 92.21 Hi 2 29.68 12.16 2.778 .08 12.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 01 CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 11 1 161.48 104.41 2 139.60 58.00 11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 161.48 TIME(MINUTES) = 24.474 11 7 1 1 I/ EFFECTIVE AREA(ACRES) = 104.41 TOTAL AREA(ACRES) = 104.41 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 223.00 TO NODE 217.11 IS CODE = 8 11 » » »ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « li 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.825 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 4.73 EFFECTIVE AREA(ACRES) = 107.41 AVERAGED Fm(INCH /HR) = .106 TOTAL AREA(ACRES) = 107.41 PEAK FLOW RATE(CFS) = 166.20 TC(MIN) = 24.47 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 II »»DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE< « _ N= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME .OF..CONCENTRATION(MINUTES) _ 24.47 RAINFALL INTENSITY (INCH. /HOUR) = 1.83 EFFECTIVE_ STREAM AREA(ACRES) = 107.41 II TOTAL STREAM AREA(ACRES) = 107.41 PEAK FLOW RATE(CFS) AT CONFLUENCE = 166.20 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.10 TO NODE 217.21 IS CODE = 2 »» »RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 800.00 UPSTREAM ELEVATION = 1075.00 DOWNSTREAM ELEVATION = 1068.80 ELEVATION DIFFERENCE = 6.20 TC = .304 *[( 800.00 ** 3.00)/( 6.20)] ** .20 = 11.648 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.850 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.25 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 3.25 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.21 TO NODE 217.11 IS CODE = 6 8 1 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA« «< UPSTREAM ELEVATION = 1068.80 DOWNSTREAM ELEVATION = 1065.00 STREET LENGTH(FEET) = 800.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 L DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 13.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 01 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.25 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 12.97 AVERAGE FLOW VELOCITY(FEET /SEC.) = 1.73 PRODUCT OF DEPTH &VELOCITY = .72 qi STREETFLOW TRAVELTIME(MIN) = 7.69 TC(MIN) = 19.33 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.103 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = 1.30 le AVERAGED Fm (INCH /HR) = . 075 TOTAL AREA(ACRES) = 1.30 PEAK FLOW RATE(CFS) = 3.25 END OF SUBAREA STREETFLOW HYDRAULICS: 01 DEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 12.97 FLOW VELOCITY(FEET /SEC.) = 1.73 DEPTH *VELOCITY = .72 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.20 TO NODE 217.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.103 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 4.75 EFFECTIVE AREA(ACRES) = 3.90 11 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 7.12 TC(MIN) = 19.33 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 430.00 TO NODE 217.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLAW« «< 1 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.103 9 4 w. 1 I SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.40 SUBAREA RUNOFF(CFS) = 2.56 EFFECTIVE AREA(ACRES) = 5.30 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 9.67 TC(MIN) = 19.33 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 217.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< ql CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 19.33 RAINFALL INTENSITY (INCH. /HOUR) = 2.10 01 EFFECTIVE STREAM AREA(ACRES) = 5.30 TOTAL STREAM AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.67 CONFLUENCE. INFORMATION: r,. STREM( PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER; RATE (CFS) (MIN. ) (INCH /HOUR) (IN /HR) AREA (ACRES) 1 ` ` 166.20 - 24.47 1.825 .11 107.41 2 >: "?;r; 9.67 19.33 2.103 .08 5.30 1 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: is STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 174.55 112.71 I 2 162.15 90.15 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: TI PEAK FLOW RATE(CFS) = 174.55 TIME(MINUTES) = 24.474 EFFECTIVE AREA(ACRES) = 112.71 TOTAL AREA(ACRES) = 112.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 217.11 TO NODE 227.01 IS CODE = 3 » » > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « « < » » >USING COMPUTER - ESTIMATED PIPESIZE (NON PRESSURE FLOW) « 11 DEPTH OF FLOW IN 63.0 INCH PIPE IS 49.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.6 UPSTREAM NODE ELEVATION = 1047.66 DOWNSTREAM NODE ELEVATION = 1045.30 FLOWLENGTH(FEET) = 590.00 MANNINGS N = .013 H i 10 1 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 174.55 1 TRAVEL TIME(MIN.) = 1.02 TC(MIN.) = 25.50 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 227.01 IS CODE = 1 »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 25.50 RAINFALL INTENSITY (INCH. /HOUR) = 1.78 EFFECTIVE STREAM AREA(ACRES) = 112.71 TOTAL STREAM AREA(ACRES) = 112.71 PEAK FLOW RATE(CFS) AT CONFLUENCE = 174.55 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** gl FLOW PROCESS FROM NODE 226.00 TO NODE 226.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 11 INITIAL SUBAREA FLOW - LENGTH = 850.00 UPSTREAM ELEVATION = 1074.50 DOWNSTREAM ELEVATION = 1064.00 ELEVATION DIFFERENCE = 10.50 TC = .304 *[( 850.00 ** 3.00)/( 10.50)] ** .20 = 10.871 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.970 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 21.37 TOTAL AREA(ACRES) = 8.20 PEAK FLOW RATE(CFS) = 21.37 ************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 226.01 TO NODE 227.01 IS CODE = 3 1 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 21.0 INCH PIPE IS 16.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.8 11 UPSTREAM NODE ELEVATION = 1054.10 DOWNSTREAM NODE ELEVATION = 1045.30 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 21.37 TRAVEL TIME(MIN.) = .62 TC(MIN.) = 11.49 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 227.00 TO NODE 227.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.874 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = 11.08 EFFECTIVE AREA(ACRES) = 12.60 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 12.60 PEAK FLOW RATE(CFS) = 31.74 TC(MIN) = 11.49 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 227.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< SG CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.49 RAINFALL INTENSITY (INCH. /HOUR) = 2.87 EFFECTIVE STREAM AREA(ACRES) = 12.60 TOTAL STREAM AREA(ACRES) = 12.60 • PEAK FLOW RATE(CFS) AT CONFLUENCE = 31.74 CONFLUENCE INFORMATION: STREAM.:; ° " PEAK ::FLOW . TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 174.55 25.50 1.781 .10 112.71 2 31.74 11.49 2.874 .08 12.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO DE CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 193.90 125.31 2 161.64 63.38 _ COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 193.90 TIME(MINUTES) = 25.497 EFFECTIVE AREA(ACRES) = 125.31 TOTAL AREA(ACRES) = 125.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 228.00 TO NODE 227.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW ««< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.781 12 L . SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE; Fm(INCH /HR) = .0750 11 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 1.84 EFFECTIVE AREA(ACRES) = 126.51 AVERAGED Fm(INCH /HR) = .101 TOTAL AREA(ACRES) = 126.51 PEAR FLOW RATE(CFS) = 193.90 TC(MIN) = 25.50 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 229.01 IS CODE = 3 l » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< di DEPTH OF FLOW IN 66.0 INCH PIPE IS 52.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1045.30 DOWNSTREAM NODE ELEVATION = 1044.75 FLOWLENGTH(FEET) = 145.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 193.90 TRAVEL TIME(MIN.) = .25 TC(MIN.) = 25.75 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** U. FLOW ,= PROCESS FROM NODE 229.01 TO NODE 229.01 IS CODE = 1 » » >DESIGNATE;:INDEPENDENT STREAM FOR CONFLUENCE « «< » » >ANDCOMPUTE:VARIOUS CONFLUENCED STREAM VALUES « «< _ CONFLUENCE - VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 25.75 RAINFALL INTENSITY (INCH. /HOUR) = 1.77 EFFECTIVE STREAM AREA(ACRES) = 126.51 ® TOTAL STREAM AREA(ACRES) = 126.51 PEAK FLOW RATE(CFS) AT CONFLUENCE = 193.90 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 01 1 193.90 25.75 1.771 .10 126.51 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 193.90 126.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 193.90 TIME(MINUTES) = 25.747 EFFECTIVE AREA(ACRES) = 126.51 13 TOTAL AREA(ACRES) = 126.51 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.10 TO NODE 430.01 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL 11 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 350.00 11 UPSTREAM ELEVATION = 1054.00 DOWNSTREAM ELEVATION = 1048.20 ELEVATION DIFFERENCE = 5.80 TC = .304 *[( 350.00 ** 3.00)/( 5.80)] ** .20 = 7.188 11 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.807 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 24.19 TOTAL AREA(ACRES) = 7.20 PEAR FLOW RATE(CFS) = 24.19 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.20 TO NODE 430.01 IS CODE = 8 » » >ADDITION OF. SUBAREA TO MAINLINE PEAR FLOW « «< I `:...:, - : 25F; YEAR 'RAINFALL INTENSITY( INCH /HOUR) = 3.807 SOIL,, CLASSIFICATION : IS "B " ..: COMMERCIA.6,SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.70 SUBAREA RUNOFF(CFS) = 19.15 EFFECTIVE :`AREA(ACRES) = 12.90 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 12.90 PEAK FLOW RATE(CFS) = 43.33 TC(MIN) = 7.19 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 229.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 33.0 INCH PIPE IS 26.8 INCHES 11 PIPEFLOW VELOCITY(FEET /SEC.) = 8.4 UPSTREAM NODE ELEVATION = 1048.50 DOWNSTREAM NODE ELEVATION = 1044.75 FLOWLENGTH(FEET) = 520.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 43.33 TRAVEL TIME(MIN.) = 1.03 TC(MIN.) = 8.22 14 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 229.01 IS CODE = 1 11 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< 1: CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 8.22 RAINFALL INTENSITY (INCH. /HOUR) = 3.51 10 EFFECTIVE STREAM AREA(ACRES) = 12.90 TOTAL STREAM AREA(ACRES) = 12.90 PEAR FLOW RATE(CFS) AT CONFLUENCE = 43.33 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 193.90 25.75 1.771 .10 126.51 2 43.33 8.22 3.513 .08 12.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) V 1 , . 215.27 139.41 ? -= 169.84 . 53.29 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS fir - ; , PEAK -,FLOW RATE(CFS) = 215.27 TIME(MINUTES) = 25.747 a= EFFECTIVE AREA( ACRES) = 139.41 TOTAL AREA(ACRES) = 139.41 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.00 TO NODE 229.01 IS CODE = 8 ' » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< al 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.771 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 7.78 al EFFECTIVE AREA(ACRES) = 144.51 AVERAGED Fm(INCH /HR) = . 098 TOTAL AREA(ACRES) = 144.51 PEAR FLOW RATE(CFS) = 217.54 TC(MIN) = 25.75 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 230.00 TO NODE 229.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< Al 15 11 25 YEAR RAINFALL INTENSITY INCH /HOUR = 1.771 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .78 SUBAREA RUNOFF(CFS) = 1.19 EFFECTIVE AREA(ACRES) = 145.29 -I; AVERAGED Fm(INCH/HR) = .098 TOTAL AREA (ACRES) = 145.29 //56 7 /5 7"4 CA . PEAR FLOW RATE(CFS) = 218.73 TC(MIN) = 25.75 Q - � *************************************** * * * * * * * * * * * * * * * * * * * * * * * *X * * * * ** F-; FLOW PROCESS FROM NODE 229.01 TO NODE 229.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 010 DEPTH OF FLOW IN 69.0 INCH PIPE IS 53.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.1 UPSTREAM NODE ELEVATION = 1044.75 DOWNSTREAM NODE ELEVATION = 1041.65 FLOWLENGTH(FEET) = 785.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 218.73 TRAVEL TIME(MIN.) = 1.29 TC(MIN.) = 27.04 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW: PROCESS FROM NODE 313.10 TO NODE 229.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.720 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = .45 SUBAREA RUNOFF(CFS) = .67 DI EFFECTIVE AREA(ACRES) = 145.74 AVERAGED Fm(INCH/HR) = .098 TOTAL AREA(ACRES) = 145.74 PEAK FLOW RATE(CFS) = 218.73 TC(MIN) = 27.04 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.02 TO NODE 233.01 IS CODE = 3 Ell » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 69.0 INCH PIPE IS 53.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.2 UPSTREAM NODE ELEVATION = 1041.65 DOWNSTREAM NODE ELEVATION = 1040.65 FLOWLENGTH(FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 16 I� PIPEFLOW THRU SUBAREA(CFS) = 218.73 TRAVEL TIME(MIN.) = .41 TC(MIN.) = 27.45 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.01 TO NODE 233.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 27.45 RAINFALL INTENSITY (INCH. /HOUR) = 1.70 EFFECTIVE STREAM AREA(ACRES) = 145.74 TOTAL STREAM AREA(ACRES) = 145.74 PEAK FLOW RATE(CFS) AT CONFLUENCE = 218.73 NI **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.20 TO NODE 303.21 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K* [ LENGTH ** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW - LENGTH = 1100.00 )] 01 UPSTREAM ELEVATION = 1081.50 DOWNSTREAM ELEVATION = 1065.00 ELEVATION DIFFERENCE = 16.50 TC = x:::304 *[`(;';1100.00 ** 3.00) /( 16.50)] ** .20 = 11.593 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.858 SOIL:. CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 0 SUBAREA RUNOFF(CFS) = 13.28 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 13.28 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.21 TO NODE 233.01 IS CODE = 3 I » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< 01 ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 9.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 14.2 01 UPSTREAM NODE ELEVATION = 1058.00 DOWNSTREAM NODE ELEVATION = 1040.65 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 11 PIPEFLOW THRU SUBAREA(CFS) = 13.28 TRAVEL TIME(MIN.) = .35 TC(MIN.) = 11.95 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** �� 17 FLOW PROCESS FROM NODE 233.00 TO NODE 233.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.807 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 11.50 SUBAREA RUNOFF(CFS) = 28.28 EFFECTIVE AREA(ACRES) = 16.80 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 16.80 PEAR FLOW RATE(CFS) = 41.31 TC(MIN) = 11.95 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** JO FLOW PROCESS FROM NODE 233.01 TO NODE 233.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.95 RAINFALL INTENSITY (INCH. /HOUR) = 2.81 EFFECTIVE STREAM AREA(ACRES) = 16.80 TOTAL STREAM AREA(ACRES) = 16.80 PEAK .FLOW RATE(CFS) AT CONFLUENCE = 41.31 CONFLUENCE INFORMATION: STREAM PEAK: FLOW» TIME -` INTENSITY FM EFFECTIVE NUMBERS RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 218.73 27.45 1.704 .10 145.74 2 41.31 11.95 2.807 .08 16.80 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 243.36 162.54 2 201.89 80.23 11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 243.36 TIME(MINUTES) = 27.445 EFFECTIVE AREA(ACRES) = 162.54 f1 TOTAL AREA(ACRES) = 162.54 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 313.00 TO NODE 233.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.704 18 11 ' o "B" SOIL CLASSIFICATION IS B COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .58 SUBAREA RUNOFF(CFS) = .85 EFFECTIVE AREA(ACRES) = 163.12 AVERAGED Fm(INCH /HR) = .096 TOTAL AREA(ACRES) = 163.12 PEAK FLOW RATE(CFS) = 243.36 TC(MIN) = 27.45 ' i **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** y FLOW PROCESS FROM NODE 307.00 TO NODE 233.01 IS CODE = 8 11: J » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.704 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.20 SUBAREA RUNOFF(CFS) = 3.23 EFFECTIVE AREA(ACRES) = 165.32 AVERAGED Fm(INCH /HR) _ .095 TOTAL AREA(ACRES) = 165.32 PEAK FLOW RATE(CFS) = 243.36 TC(MIN) = 27.45 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW, PROCESSFROM NODE. 313.20 TO NODE 233.01 IS CODE = 8 { »> »A DDITIONWOF-, SUBAREA TO MAINLINE PEAK FLOW « «< 254 YEAR° RAINFALL INTENSITY(INCH /HOUR) = 1.704 SOIICLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 1.61 EFFECTIVE AREA(ACRES) = 166.42 AVERAGED Fm(INCH /HR) = .095 TOTAL AREA(ACRES) = 166.42 PEAK FLOW RATE(CFS) = 243.36 [11 TC(MIN) = 27.45 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 233.01 TO NODE 306.01 IS CODE = 3 e » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< Ell » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW)« «< DEPTH OF FLOW IN 72.0 INCH PIPE IS 55.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.4 UPSTREAM NODE ELEVATION = 1040.65 DOWNSTREAM NODE ELEVATION = 1039.50 FLOWLENGTH(FEET) = 290.00 MANNINGS N = .013 [II ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 , PIPEFLOW THRU SUBAREA(CFS) = 243.36 Er 19 1 di y W TRAVEL TIME(MIN.) = .46 TC(MIN.) = 27.91 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 27.91 RAINFALL INTENSITY (INCH. /HOUR) = 1.69 EFFECTIVE STREAM AREA(ACRES) = 166.42 TOTAL STREAM AREA(ACRES) = 166.42 PEAR FLOW RATE(CFS) AT CONFLUENCE = 243.36 L CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 31 1 243.36 27.91 1.687 .10 166.42 Ell RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE .NUMBER Q(CFS) AREA(ACRES) 243.36: 166.42 COMPUTED. CONFLUENCE ESTIMATES ARE AS FOLLOWS: 'PEA F LOW RATE(CFS) .. _ �;: 243.36 TIME(MINUTES) = 27.908 EFFECTIVe AREA (ACRES) = 166.42 TOTAL'; AREA(ACRES) = 166.42 • 01 END OF STUDY SUMMARY: TOTAL AREA( ACRES) = 166.42 EFFECTIVE AREA( ACRES) = 166.42 PEAR FLOW RATE(CFS) = 243.36 END OF RATIONAL METHOD ANALYSIS 3)A R-56 A+ 5 OA/ /AM 306.0/ ri i NE ' /r �r G : 1 a 20 [1 .1 I . ! i 1 LINE 'C' ,i 100 -YR. ; 3 25-YR. FULLY DEVELOPED -CONDITION C4' ti j 3 I LI ; 1 L 1 • 1 2 1 s i 1 1 9 d i LI 4 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER W. SIDE OF PROMOTION CENTER L /JOE �G ' � * 100 -YR STORM * BY: J.R. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECNLC.100 TIME /DATE OF STUDY: 10 :11 7/13/1990 _ USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: __ _____ -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR. STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.00 TO NODE 103.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< NATURAL POOR COVER TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 260.00 UPSTREAM ELEVATION = 1110.00 DOWNSTREAM ELEVATION = 1105.00 ELEVATION DIFFERENCE = 5.00 TC = .525 *[( 260.00 ** 3.00)/( 5.00)] ** .20 = 10.699 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.770 SOIL CLASSIFICATION IS "A" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .4100 SUBAREA RUNOFF(CFS) = 7.56 TOTAL AREA(ACRES) = 2.50 PEAK FLOW RATE(CFS) = 7.56 1 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.01 TO NODE 103.02 IS CODE = 5 » » >COMPUTE TRAPEZOIDAL - CHANNEL FLOW « «< » » >TRAVELTIME THRU SUBAREA « «< UPSTREAM NODE ELEVATION = 1105.00 DOWNSTREAM NODE ELEVATION = 1095.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 150.00 CHANNEL BASE(FEET) = 40.00 "Z" FACTOR = 99.990 MANNINGS FACTOR = .030 MAXIMUM DEPTH(FEET) = .50 CHANNEL FLOW THRU SUBAREA(CFS) = 7.56 FLOW VELOCITY(FEET /SEC) = 2.02 FLOW DEPTH(FEET) = .08 TRAVEL TIME(MIN.) = 1.24 TC(MIN.) = 11.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.10 TO NODE 103.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.531 1 SOIL CLASSIFICATION IS "A" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH/HR) = .4100 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 5.34 EFFECTIVE AREA(ACRES) = 4.40 AVERAGED Fm(INCH/HR) = .410 TOTAL {' AREA(ACRES) = 4.40 PEAKFLOW.RATE(CFS) = 12.36 TC(MIN) = 11.93 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.20 TO NODE 103.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.531 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 8.35 EFFECTIVE AREA(ACRES) = 7.10 AVERAGED Fm(INCH /HR) = .291 TOTAL AREA(ACRES) = 7.10 PEAR FLOW RATE(CFS) = 20.70 TC(MIN) = 11.93 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.02 TO NODE 103.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.6 INCHES 2 PIPEFLOW VELOCITY(FEET /SEC.) = 7.6 UPSTREAM NODE ELEVATION = 1087.80 ' DOWNSTREAM NODE ELEVATION = 1076.33 FLOWLENGTH(FEET) = 1400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 20.70 TRAVEL TIME(MIN.) = 3.09 TC(MIN.) = 15.02 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.30 TO NODE 103.11 IS CODE = 8 » »> ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< � 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.076 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .3 SUBAREA AREA(ACRES) = 7.90 SUBAREA RUNOFF(CFS) = 19.20 EFFECTIVE AREA(ACRES) = 15.00 AVERAGED Fm(INCH/HR) = .335 TOTAL AREA(ACRES) = 15.00 PEAR FLOW RATE(CFS) = 37.00 TC(MIN) = 15.02 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW.; PROCESS FROM NODE 116.10 TO NODE 103.11 IS CODE = 8 a +v` >» »ADDITION OF . SUBAREA TO MAINLINE PEAK FLOW ««< is ====_=___=___== 111 -100 YEAR- 'RAINFALL INTENSITY(INCH /HOUR) = 3.076 SOIL' CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 7.24 EFFECTIVE AREA(ACRES) = 17.70 AVERAGED Fm(INCH /HR) = .299 TOTAL AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) = 44.24 TC(MIN) = 15.02 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< ® CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.02 RAINFALL INTENSITY (INCH. /HOUR) = 3.08 EFFECTIVE STREAM AREA(ACRES) = 17.70 TOTAL STREAM AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 44.24 CONFLUENCE INFORMATION: 3 STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) 1 1 44.24 15.02 3.076 .30 17.70 -, RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE 1 NUMBER Q(CFS) AREA(ACRES) 1 44.24 17.70 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 44.24 TIME(MINUTES) = 15.022 EFFECTIVE AREA(ACRES) = 17.70 TOTAL AREA(ACRES) = 17.70 77/i5 W /LL Be US�L) , s Js5e /NP " T , ************************************ * * * * * * * * * =*,4 g* * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 109.00 TO NODE 109.01 IS CODE = 2 0 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< Ell ====== DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 ill INITIAL: SUBAREA FLOW- LENGTH = 900.00 UPSTREAM ELEVATION = 1098.00 DOWNSTREAM ELEVATION =... 1091.00 ELEVATION,: DIFFERENCE = 7.00 TC ='' *[( 900.00 ** 3.00) /( 7.00)] ** .20 = 12.201 100 YEAR:. RAINFALL INTENSITY(INCH /HOUR) = 3.485 SOIL CLASSIFICATION IS "B" al COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 26.70 TOTAL AREA(ACRES) = 8.70 PEAR FLOW RATE(CFS) = 26.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** al FLOW PROCESS FROM NODE 112.00 TO NODE 109.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 01 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.485 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 LI SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 3.38 EFFECTIVE AREA(ACRES) = 9.80 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 9.80 PEAK FLOW RATE(CFS) = 30.07 TC(MIN) = 12.20 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** LI 4 LII d 1 FLOW PROCESS FROM NODE 115.10 TO NODE 109.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.485 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.07 SUBAREA RUNOFF(CFS) = 3.28 EFFECTIVE AREA(ACRES) = 10.87 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 10.87 PEAK FLOW RATE(CFS) = 33.36 TC(MIN) = 12.20 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 109.01 TO NODE 116.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 36.0 INCH PIPE IS 25.2 INCHES 11 PIPEFLOW VELOCITY(FEET /SEC.) = 6.3 UPSTREAM NODE ELEVATION = 1080.70 DOWNSTREAM NODE ELEVATION = 1079.80 FLOWLENGTH(FEET) = 240.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 , ' ; PIPEFLOW ;THRU SUBAREA(CFS) = 33.36 TRAVEL TIME (MIN .) = .63 TC(MIN.) = 12.84 El **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** al FLOW PROCESS FROM NODE 116.00 TO NODE 116.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.380 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 gl SUBAREA AREA(ACRES) = 2.30 SUBAREA RUNOFF(CFS) = 6.84 EFFECTIVE AREA(ACRES) = 13.17 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 13.17 11 PEAK FLOW RATE(CFS) = 39.18 TC(MIN) _= 12.84 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 116.01 TO NODE 110.01 IS CODE = 3 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 11 DEPTH OF FLOW IN 36.0 INCH PIPE IS 27.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.7 5 UPSTREAM NODE ELEVATION = 1079.80 DOWNSTREAM NODE ELEVATION = 1078.45 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 39.18 TRAVEL TIME(MIN.) = .82 TC(MIN.) = 13.66 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 110.00 TO NODE 110.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.257 { _ SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 11.40 SUBAREA RUNOFF(CFS) = 32.64 EFFECTIVE AREA(ACRES) = 24.57 AVERAGED Fm(INCH /HR) = .075 Al TOTAL PEAK FLOW RATE(CFS) 2 S) = 70.36 TC(MIN) = 13.66 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 113.00 TO NODE 110.01 IS CODE = 8 Ell » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< === = = = = = == 011 100 TEAR RAINFALL.INTENSITY(INCH /HOUR) = 3.257 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 3.09 EFFECTIVE AREA(ACRES) = 25.65 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 25.65 f1I PEAK FLOW RATE(CFS) = 73.45 LA TC(MIN) = 13.66 Eli **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 118.00 TO NODE 110.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.257 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 3.09 EFFECTIVE AREA(ACRES) = 26.73 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 26.73 PEAK FLOW RATE(CFS) = 76.54 TC(MIN) = 13.66 Lil 6 [ _1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 110.01 TO NODE 103.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< ' » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 48.0 INCH PIPE IS 34.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.0 UPSTREAM NODE ELEVATION = 1078.45 DOWNSTREAM NODE ELEVATION = 1076.33 FLOWLENGTH(FEET) = 520.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 76.54 TRAVEL TIME(MIN.) = 1.08 TC(MIN.) = 14.74 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 1/ » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.74 RAINFALL INTENSITY (INCH. /HOUR) = 3.11 EFFECTIVE STREAM AREA(ACRES) = 26.73 F. TOTAL STREAM AREA(ACRES) = 26.73 PEAK FLOW RATE(CFS) AT CONFLUENCE = 76.54 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 104.00 TO NODE 104.01 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 520.00 UPSTREAM ELEVATION = 1130.00 DOWNSTREAM ELEVATION = 1110.00 ELEVATION DIFFERENCE = 20.00 TC = .304 *[( 520.00 ** 3.00)/( 20.00)] ** .20 = 7.117 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.815 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0970 SUBAREA RUNOFF(CFS) = 4.03 TOTAL AREA(ACRES) = .95 PEAK FLOW RATE(CFS) = 4.03 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 104.01 TO NODE 103.11 IS CODE = 6 11 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< 1 7 ! l� 1 UPSTREAM ELEVATION = 1110.00 DOWNSTREAM ELEVATION = 1088.00 STREET LENGTH(FEET) = 690.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 51.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 37.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.03 STREETFLOW MODEL RESULTS: le STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 9.12 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.95 11 PRODUCT OF DEPTH &VELOCITY = 1.34 S TREETFLOW TRAVELTIME(MIN) = 2.91 TC(MIN) = 10.03 100 YEAR. RAINFALL INTENSITY(INCH /HOUR) = 3.919 1 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = .95 AVERAGED Fm(INCH/HR) = .097 UP TOTAL AREA(ACRES) = .95 PEAK FLOW RATE(CFS) = 4.03 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .34.- HALFSTREET FLOODWIDTH(FEET) = 9.12 ( <`. _ :r ,: = >;:.�=4 _FLOW_ VELOCITY FEET /SEC. _ = , 3.95 DEPTH *VELOCITY = 1.34 II ti **************************************** * * * * * * * * * * * * * * * * * * * * * * * ** * * * *** FLOW PROCESS FROM NODE 105.00 TO NODE 103.11 IS CODE = 8 al » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.919 HI SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = .95 SUBAREA RUNOFF(CFS) = 3.27 di EFFECTIVE AREA(ACRES) = 1.90 AVERAGED Fm(INCH /HR) = .097 TOTAL AREA(ACRES) = 1.90 PEAR FLOW RATE(CFS) = 6.54 111 TC(MIN) = 10.03 ® **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 113.10 TO NODE 103.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.919 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 1.38 SUBAREA RUNOFF(CFS) = 4.75 8 s 1 3 1 EFFECTIVE AREA(ACRES) = 3.28 - AVERAGED Fm(INCH /HR) = .097 1 TOTAL AREA(ACRES) = 3.28 PEAK FLOW RATE(CFS) = 11.28 TC(MIN) = 10.03 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 10.03 RAINFALL INTENSITY (INCH. /HOUR) = 3.92 1 EFFECTIVE STREAM AREA(ACRES) = 3.28 TOTAL STREAM AREA(ACRES) = 3.28 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.28 1 CONFLUENCE INFORMATION: i STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE - NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 76.54 14.74 3.111 .08 26.73 . 2 11.28 10.03 3.919 .10 3.28 , All - , . - . , --- - - - , - i - - . '„Iti.. RAINFALL: INTENSITY AND TIME OF CONCENTRATION RATIO . • _ . CONFLUENCE; ;FORMULA USED FOR 2 STREAMS . 3 SUXMARY RESULTS :. - . ? ` - STREAM ' " -':' CONFLUENCE EFFECTIVE i .. NUMBER Q(CFS) AREA(ACRES) 1 Lin 1 85.44 30.01 2 77.23 21.47 C OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 1 PEAK FLOW RATE(CFS) = 85.44 TIME(MINUTES) = 14.741 EFFECTIVE AREA(ACRES) = 30.01 TOTAL AREA(ACRES) = 30.01 i **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 111 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 1 ACONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.74 I RAINFALL INTENSITY (INCH. /HOUR) = 3.11 ,EFFECTIVE STREAM AREA(ACRES) = 30.01 L1 TOTAL STREAM AREA(ACRES) = 30.01 PEAK FLOW RATE(CFS) AT CONFLUENCE = 85.44 3. **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** i , Lill 9 i [1 i FLOW PROCESS = LO OCESS FROM NODE 103.11 TO NODE 103.11 IS CODE 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER - SPECIFIED VALUES ARE AS FOLLOWS: _-\ TC(MIN) = 15.02 RAIN INTENSITY(INCH /HOUR) = 3.08 EFFECTIVE AREA(ACRES) = 17.70 TOTAL AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) = 44.24 AVERAGED LOSS RATE, Fm(IN /HR) = .300 omr FPM Az/6 # ,o°j **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.02 RAINFALL INTENSITY (INCH. /HOUR) = 3.08 EFFECTIVE STREAM AREA(ACRES) = 17.70 TOTAL STREAM AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 44.24 CONFLUENCE INFORMATION: II STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER.., RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 :.:..85.44 14.74 3.111 .08 30.01 2 44.24. 15.02 3.076 .30 17.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO I; CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) I; 1 129.40 47.38 2 128.69 47.71 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 129.40 TIME(MINUTES) = 14.741 EFFECTIVE AREA(ACRES) = 47.38 TOTAL AREA(ACRES) = 47.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 117.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< 11 » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 57.0 INCH PIPE IS 41.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.3 UPSTREAM NODE ELEVATION = 1076.33 DOWNSTREAM NODE ELEVATION = 1075.90 10 1 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 1 ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 129.40 TRAVEL TIME(MIN.) = .18 TC(MIN.) 14.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.00 TO NODE 117.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.088 11 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0970 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 7.00 EFFECTIVE AREA(ACRES) = 49.98 AVERAGED Fm(INCH /HR) = .156 TOTAL AREA(ACRES) = 50.31 PEAK FLOW RATE(CFS) = 131.91 1P TC(MIN) = 14.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< =_ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.92 RAINFALL INTENSITY (INCH. /HOUR) = 3.09 EFFECTIVE STREAM AREA(ACRES) = 49.98 TOTAL STREAM AREA(ACRES) = 50.31 PEAK FLOW RATE(CFS) AT CONFLUENCE = 131.91 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) ir 1 131.91 14.92 3.088 .16 49.98 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. IP SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 131.91 49.98 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 131.91 TIME(MINUTES) = 14.921 EFFECTIVE AREA(ACRES) = 49.98 TOTAL AREA(ACRES) = 50.31 END OF STUDY SUMMARY: TOTAL AREA(ACRES) 50.31 11 , 1 ' EFFECTIVE = AREA(ACRES) 49.98 PEAR FLOW RATE(CFS) = 131.91 END OF RATIONAL METHOD ANALYSIS use- 7 -#/5 1N //".0c- 1170/ 4 1 1 t 1 L 1 1 1 f. 12 A t 1 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 11 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER LINE "C" NORTH OF INTERSECTION OF LINE "A" 11 * Q100 YEAR * BY: J.R. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** gi FILE NAME: FECSLC.100 TIME /DATE OF STUDY: 13:16 7/13/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = HI *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 10 FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< di USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.92 RAIN INTENSITY(INCH /HOUR) = 3.09 EFFECTIVE AREA(ACRES) = 49.98 ray ® TOTAL AREA(ACRES) = 50.31 PEAR FLOW RATE(CFS) = 131.91 F�G AVERAGED LOSS RATE, Fm(IN /HR) = .160 eeN1c, **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 11 DEPTH OF FLOW IN 45.0 INCH PIPE IS 34.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 14.4 ', 1 UPSTREAM NODE ELEVATION = 1075.90 DOWNSTREAM NODE ELEVATION = 1066.47 FLOWLENGTH(FEET) = 670.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 131.91 TRAVEL TIME(MIN.) = .78 TC(MIN.) = 15.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.02 TO NODE 117.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.70 RAINFALL INTENSITY (INCH. /HOUR) = 3.00 EFFECTIVE STREAM AREA(ACRES) = 49.98 TOTAL STREAM AREA(ACRES) = 50.31 PEAK FLOW RATE(CFS) AT CONFLUENCE = 131.91 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1/ FLOW PROCESS FROM NODE 118.10 TO NODE 117.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 UPSTREAM ELEVATION = 1090.10 DOWNSTREAM ELEVATION = 1087.90 ELEVATION DIFFERENCE = 2.20 TC = .304 *[( 500.00 ** 3.00)/( 2.20)] ** .20 = 10.809 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.747 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.77 TOTAL AREA(ACRES) = 1.14 PEAK FLOW RATE(CFS) = 3.77 t.` **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 301.00 TO NODE 117.02 IS CODE = 6 ;# » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1087.90 DOWNSTREAM ELEVATION = 1081.00 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 j DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 2 11 I * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 6.25 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.99 PRODUCT OF DEPTH &VELOCITY = 1.30 STREETFLOW TRAVELTIME(MIN) = 3.62 TC(MIN) = 14.43 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.151 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 4.98 EFFECTIVE AREA(ACRES) = 2.94 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 2.94 PEAR FLOW RATE(CFS) = 8.14 01 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .47 HALFSTREET FLOODWIDTH(FEET) = 15.38 FLOW VELOCITY(FEET /SEC.) = 3.19 DEPTH *VELOCITY = 1.48 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 3 FLOW PROCESS FROM NODE 117.02 TO NODE 117.02 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< 00 CONFLUENCE,:: VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME ";OFi CONCENTRATION(MINUTES) -= 14.43 al RAINFALL INTENSITY (INCH. /HOUR) = 3.15 EFFECTIVE`, STREAM AREA(ACRES) = 2.94 TOTAL STREAM AREA(ACRES) = 2.94 FIB PEAR FLOW RATE(CFS) AT CONFLUENCE = 8.14 Ul CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE OE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 131.91 15.70 2.996 .16 49.98 DE 2 8.14 14.43 3.151 .08 2.94 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. 01 SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 01 1 139.64 52.92 2 136.04 48.89 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 11 PEAK FLOW RATE(CFS) = 139.64 TIME(MINUTES) = 15.695 EFFECTIVE AREA(ACRES) = 52.92 TOTAL AREA(ACRES) = 53.25 01 1 3 111 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 117.02 TO NODE 300.12 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 45.0 INCH PIPE IS 36.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 14.5 UPSTREAM NODE ELEVATION = 1066.47 DOWNSTREAM NODE ELEVATION = 1061.50 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 139.64 TRAVEL TIME(MIN.) = .40 TC(MIN.) = 16.10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.00 TO NODE 300.12 IS CODE = 8 11 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< _ == _= ==== = == =_= == 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.951 11 SOIL CLASSIFICATION IS "B" = COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) 4.40 SUBAREA RUNOFF(CFS) 11.39 EFFECTIVE AREA(ACRES) = 57.32 11 AVERAGED Fm(INCH/HR) = .149 TOTAL AREA(ACRES) = 57.65 PEAK»FLOWRATE(CFS) = 144.53 TC(MIN); = 16.10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.12 TO NODE 300.12 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.10 Ji RAINFALL INTENSITY (INCH. /HOUR) = 2.95 EFFECTIVE STREAM AREA(ACRES) = 57.32 TOTAL STREAM AREA(ACRES) = 57.65 PEAK FLOW RATE(CFS) AT CONFLUENCE = 144.53 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 300.10 TO NODE 300.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< 11 DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 600.00 UPSTREAM ELEVATION = 1093.60 `1 4 1 4. DOWNSTREAM ELEVATION = 1087.70 ELEVATION DIFFERENCE = 5.90 TC = .304 *[( 600.00 ** 3.00)/( 5.90)] ** .20 = 9.899 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.950 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 29.30 TOTAL AREA(ACRES) = 8.40 PEAK FLOW RATE(CFS) = 29.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.11 TO NODE 300.21 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< /1 DEPTH OF FLOW IN 27.0 INCH PIPE IS 21.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.7 UPSTREAM NODE ELEVATION = 1074.40 DOWNSTREAM NODE ELEVATION = 1070.90 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 29.30 TRAVEL TIME(MIN.) = .67 TC(MIN.) = 10.57 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** t <f,FLOW >; PROCESS FROM NODE 300.20 TO NODE 300.21 IS CODE = 8 �:x 4..i%..: a , J +cw .ar.: Yu- ;vii''n. iT:•3..i •.... - . ..',. yea., 4; "11 , =yK 7 A } » » >ADDITION :: OF;, SUBAREA TO MAINLINE PEAK FLOW ««< = == = = = == = =__= __ =__ =_= 100 YEAR -RAINFALL INTENSITY ( INCH /HOUR) = 3.797 SOIL; CLASSIFICATION IS "B" il COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.30 SUBAREA RUNOFF(CFS) = 17.76 EFFECTIVE AREA(ACRES) = 13.70 1: AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 13.70 PEAK FLOW RATE(CFS) = 45.90 TC(MIN) = 10.57 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.21 TO NODE 300.31 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 33.0 INCH PIPE IS 23.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.0 UPSTREAM NODE ELEVATION = 1070.90 DOWNSTREAM NODE ELEVATION = 1068.00 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 45.90 I/ 5 1 TRAVEL TIME(MIN.) = .47 TC(MIN.) = 11.04 1 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.30 TO NODE 300.31 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.700 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.80 SUBAREA RUNOFF(CFS) = 12.40 10 EFFECTIVE AREA(ACRES) = 17.50 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 17.50 PEAK FLOW RATE(CFS) = 57.09 IP TC(MIN) = 11.04 gi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.31 TO NODE 300.12 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 30.0 INCH PIPE IS 22.0 INCHES 01 ;PIPEFLOWVELOCITY(FEET /SEC.) = 14.8 UPSTREAM NODE ELEVATION = 1068.00 DOWNSTREAM:NODE ELEVATION = 1061.50 gi FLOWLENGTH(FEET) : =- :250.00 : MANNINGS N = .013 ESTIMATED`:: PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 57.09 TRAVEL TIME(MIN.) = .28 TC(MIN.) = 11.32 OE **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.01 TO NODE 300.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.32 01 RAINFALL INTENSITY (INCH. /HOUR) = 3.64 EFFECTIVE STREAM AREA(ACRES) = 17.50 TOTAL STREAM AREA(ACRES) = 17.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 57.09 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 1 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 144.53 16.10 2.951 .15 57.32 2 57.09 11.32 3.644 .08 17.50 1 6 1 RAINFALL INTENSITY AND TINE OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. 111 SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 190.53 74.82 2 183.92 57.82 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 190.53 TIME(MINUTES) = 16.098 EFFECTIVE AREA(ACRES) = 74.82 TOTAL AREA(ACRES) = 75.15 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.12 TO NODE 303.01 IS CODE = 3 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 51.0 INCH PIPE IS 40.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.7 UPSTREAM NODE ELEVATION = 1061.50 DOWNSTREAM NODE ELEVATION = 1054.70 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 11 PIPEFLOW THRU SUBAREA(CFS) = 190.53 TRAVEL TIME(MIN.) = .51 TC(MIN.) = 16.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 303.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.61 RAINFALL INTENSITY (INCH. /HOUR) = 2.90 EFFECTIVE STREAM AREA(ACRES) = 74.82 TOTAL STREAM AREA(ACRES) = 75.15 PEAR FLOW RATE(CFS) AT CONFLUENCE = 190.53 ® **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.10 TO NODE 303.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = R *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 750.00 UPSTREAM ELEVATION = 1082.80 ' DOWNSTREAM ELEVATION = 1075.80 ELEVATION DIFFERENCE = 7.00 7 l _ * 750.00** 7.00)]** = TC .304 [( 750.00 3.00)/( 7.00)] .20 10.937 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.721 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 28.22 TOTAL AREA(ACRES) = 8.60 PEAR FLOW RATE(CFS) = 28.22 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.11 TO NODE 303.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.2 UPSTREAM NODE ELEVATION = 1060.30 DOWNSTREAM NODE ELEVATION = 1054.70 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 1 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 28.22 TRAVEL TIME(MIN.) = .42 TC(MIN.) = 11.35 *************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.00 TO NODE 303.01 IS CODE = 8 >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< == = = = = = = 10 0. YEAR :: -- RAINFALL . INTENSITY( INCH /HOUR) = 3.639 . SOIL CLASSIFICATION IS` "B" COMMERCIAL SUBAREA : :LOSS "`RATE , Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES)1 1.90 SUBAREA RUNOFF(CFS) = 6.09 EFFECTIVE AREA(ACRES) = 10.50 AVERAGED Fm( INCH /HR) = .075 TOTAL AREA (ACRES) = 10.50 PEAK FLOW RATE(CFS) = 33.68 TC(MIN) = 11.35 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 303.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.35 RAINFALL INTENSITY (INCH. /HOUR) = 3.64 EFFECTIVE STREAM AREA(ACRES) = 10.50 TOTAL STREAM AREA(ACRES) = 10.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 33.68 11 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE [1 8 II NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) II 1 190.53 33.68 16.61 2.896 3.639 .13 74.82 2 11.35 .08 10.50 II RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE II NUMBER Q(CFS) AREA(ACRES) 1 217.19 85.32 11 2 198.90 61.65 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 217.19 TIME(MINUTES) = 16.606 /I EFFECTIVE AREA(ACRES) = 85.32 TOTAL AREA(ACRES) = 85.65 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 303.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED. PIPESIZE (NON- PRESSURE FLOW ) « «< DEPTH OF FLOW IN 54.0 INCH PIPE IS 42.1 INCHES 1 PIPEFLOW VELOCITY(FEET /SEC.) = 16.3 UPSTREAM NODE ELEVATION _ = 1054.70 DOWNSTREAM. NODE ELEVATION =. 1053.28 nil FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ji ESTIMATED. PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 217.19 TRAVEL TIME(MIN.) = .10 TC(MIN.) = 16.71 10 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 10 FLOW PROCESS FROM NODE 304.00 TO NODE 303.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< li 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.886 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.31 SUBAREA RUNOFF(CFS) = 5.84 EFFECTIVE AREA(ACRES) = 87.63 AVERAGED Fm(INCH /HR) = .123 11 TOTAL AREA(ACRES) = 87.96 PEAR FLOW RATE(CFS) = 217.84 TC(MIN) = 16.71 il **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.02 TO NODE 306.01 IS CODE = 3 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< II 9 » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 54.0 INCH PIPE IS 42.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 16.4 UPSTREAM NODE ELEVATION = 1053.28 DOWNSTREAM NODE ELEVATION = 1039.50 FLOWLENGTH(FEET) = 970.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 217.84 TRAVEL TIME(MIN.) = .99 TC(MIN.) = 17.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.00 TO NODE 306.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.788 SOIL CLASSIFICATION IS "B" 1: COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 9.52 EFFECTIVE AREA(ACRES) = 91.53 AVERAGED Fm(INCH /HR) = .121 TOTAL AREA(ACRES) = 91.86 PEAK FLOW RATE(CFS) = 219.65 TC(MIN) = 17.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS. FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.70 RAINFALL INTENSITY (INCH. /HOUR) = 2.79 EFFECTIVE STREAM AREA(ACRES) = 91.53 TOTAL STREAM AREA(ACRES) = 91.86 PEAK FLOW RATE(CFS) AT CONFLUENCE = 219.65 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 300.01 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 1000.00 11 UPSTREAM ELEVATION = 1088.40 DOWNSTREAM ELEVATION = 1080.60 ELEVATION DIFFERENCE = 7.80 TC = .304 *[( 1000.00 ** 3.00)/( 7.80)] ** .20 = 12.719 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.399 10 1 1 c SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 SUBAREA RUNOFF(CFS) = 7.18 TOTAL AREA(ACRES) = 2.40 PEAR FLOW RATE(CFS) = 7.18 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.01 TO NODE 303.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1080.60 DOWNSTREAM ELEVATION = 1074.30 1/ STREET LENGTH(FEET) = 600.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 01 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 di SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 9.13 01 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 16.88 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.01 111 r PRODUCT OF DEPTH &VELOCITY = 1.49 ;STREETFLOW = 3.33 TC(MIN) = 16.04 100,k YEAR; RAINFALL ,INTENSITY( INCH /HOUR) = 2.957 SOIL,CLASSIFICATION. IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.50 SUBAREA RUNOFF(CFS) = 3.89 01 EFFECTIVE AREA(ACRES) = 3.90 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 10.11 gl END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 16.88 FLOW VELOCITY(FEET /SEC.) = 3.33 DEPTH *VELOCITY = 1.65 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 306.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1074.30 DOWNSTREAM ELEVATION = 1063.37 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 11 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 11 I * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 12.87 II STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .54 HALFSTREET FLOODWIDTH(FEET) = 19.13 11 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.35 PRODUCT OF DEPTH &VELOCITY = 1.81 STREETFLOW TRAVELTIME(MIN) = 4.98 TC(MIN) = 21.03 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.514 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 SUBAREA AREA(ACRES) = 2.50 SUBAREA RUNOFF(CFS) = 5.49 EFFECTIVE AREA(ACRES) = 6.40 AVERAGED Fm(INCH /HR) = .075 il TOTAL AREA(ACRES) = 6.40 PEAR FLOW RATE(CFS) = 14.05 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .54 HALFSTREET FLOODWIDTH(FEET) = 19.13 FLOW VELOCITY(FEET /SEC.) = 3.65 DEPTH *VELOCITY = 1.97 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DE « «< SIGNATE INDEPENDENT STREAM FOR CONFLUENCE <<<<< COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< 11 = . CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: : f TIMM_. Or CONCENTRATION (MINUTES) = 21.03 t oy if RAINFALL INTENSITY (INCH. /HOUR) = 2.51 il EFFECTIVE STREAM AREA(ACRES) = 6.40 "V` TOTAL`_ STREAM AREA(ACRES) = 6.40 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.05 . V CONFLUENCE INFORMATIONS t4 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) V 1 219.65 17.70 2.788 .12 91.53 2 14.05 21.03 2.514 .08 6.40 0 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. 11 SUMMARY RESULTS: ,V STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) V 1 1 232.80 96.92 2 211.13 97.93 I� v II COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 232.80 TIME(MINUTES) = 17 .697 EFFECTIVE AREA(ACRES) = 96.92 ' TOTAL AREA(ACRES) = 98.26 1 1 12 1 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.70 RAINFALL INTENSITY (INCH. /HOUR) = 2.79 EFFECTIVE STREAM AREA(ACRES) = 96.92 II TOTAL STREAM AREA(ACRES) = 98.26 PEAR FLOW RATE(CFS) AT CONFLUENCE = 232.80 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 7 11 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< J USER- SPECIFIED VALUES ARE AS FOLLOWS: 111 TC(MIN) = 27.91 RAIN INTENSITY(INCH /HOUR) = 2.12 EFFECTIVE AREA(ACRES) = 166.42 TOTAL AREA(ACRES) = 166.42 PEAR FLOW RATE(CFS) = 314.13 AVERAGED LOSS RATE, Fm(IN /HR) = .100 NiCY . ��Pfri IM/6 23 1 OPE .30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< = = = CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: ili TIME OF CONCENTRATION(MINUTES) = 27.91 RAINFALL INTENSITY (INCH. /HOUR) = 2.12 EFFECTIVE STREAM AREA(ACRES) = 166.42 TOTAL STREAM AREA(ACRES) = 166.42 71; PEAR FLOW RATE(CFS) AT CONFLUENCE = 314.13 CONFLUENCE INFORMATION: Ili STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 232.80 17.70 2.788 .12 96.92 3 1 2 314.13 27.91 2.121 .10 166.42 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO i ll CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) vs 1 497.69 202.44 2 488.77 263.34 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 497.69 TIME(MINUTES) = 17.697 II 13 li 11 EFFECTIVE AREA(ACRES) = 202.44 TOTAL AREA(ACRES) = 264.68 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** It FLOW PROCESS FROM NODE 306.01 TO NODE 306.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 93.0 INCH PIPE IS 71.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.8 11 UPSTREAM NODE ELEVATION = 1039.50 DOWNSTREAM NODE ELEVATION = 1038.65 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 JO ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 497.69 TRAVEL TIME(MIN.) = .26 TC(MIN.) = 17.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 307.10 TO NODE 306.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.763 SOIL CLASSIFICATION IS "B" COMMERCIAL. SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = 1.21 UP EFFECTIVE AREA(ACRES) = 202.94 AVERAGED Fm(INCH /HR) = .109 TOTAL AREA(ACRES) = 265.18 gi PEAR FLOW RATE(CFS) = 497.69 TC(MIN) = 17.96 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.02 TO NODE 309.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 93.0 INCH PIPE IS 71.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1038.65 DOWNSTREAM NODE ELEVATION = 1036.95 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 497.69 TRAVEL TIME(MIN.) = .52 TC(MIN.) = 18.48 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 309.00 TO NODE 309.01 IS CODE = 8 14 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.717 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 11.20 SUBAREA RUNOFF(CFS) = 26.63 EFFECTIVE AREA(ACRES) = 214.14 AVERAGED Fm(INCH/HR) = .107 TOTAL AREA(ACRES) = 276.38 I/ PEAR FLOW RATE(CFS) = 502.90 TC(MIN) = 18.48 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 309.01 TO NODE 309.02 IS CODE = 3 JP » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 93.0 INCH PIPE IS 72.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1036.95 JP DOWNSTREAM NODE ELEVATION = 1036.53 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 502.90 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 18.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 314.00 TO NODE 309.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< gl _ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.705 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.84 EFFECTIVE AREA(ACRES) = 215.34 gi AVERAGED Fm(INCH /HR) = .107 TOTAL AREA(ACRES) = 277.58 PEAR FLOW RATE(CFS) = 503.54 TC(MIN) = 18.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 309.02 TO NODE 310.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 75.0 INCH PIPE IS 59.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 19.3 UPSTREAM NODE ELEVATION = 1036.53 DOWNSTREAM NODE ELEVATION = 1035.25 11 15 = = FLOWLENGTH(FEET) 100.00 MANNINGS N .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 503.54 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 18.69 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 310.00 TO NODE 310.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.698 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 5.40 SUBAREA RUNOFF(CFS) = 12.75 EFFECTIVE AREA(ACRES) = 220.74 AVERAGED Fm(INCH/HR) = .106 TOTAL AREA(ACRES) = 282.98 PEAK FLOW RATE(CFS) = 514.83 TC(MIN) = 18.69 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 310.01 TO NODE 310.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< 11 » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF.,; FLOW NIN,::93.0 INCH PIPE IS 73.4 INCHES PIPEFLOWVELOCITY(FEET /SEC.) = 12.9 UPSTREAM NODE ELEVATION = 1035.25 DOWNSTREAM NODE ELEVATION = 1033.97 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 514.83 TRAVEL TIME(MIN.) = .39 TC(MIN.) = 19.08 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 314.10 TO NODE 310.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.665 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.45 SUBAREA RUNOFF(CFS) = 3.38 EFFECTIVE AREA(ACRES) = 222.19 AVERAGED Fm(INCH /HR) = .106 TOTAL AREA(ACRES) = 284.43 PEAK FLOW RATE(CFS) = 514.83 TC(MIN) = 19.08 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 16 11 FLOW PROCESS FROM NODE 310.02 TO NODE 310.03 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVFLTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 132.0 INCH PIPE IS 100.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.6 UPSTREAM NODE ELEVATION = 1031.40 DOWNSTREAM NODE ELEVATION = 1030.97 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 132.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 514.83 11 TRAVEL TIME(MIN.) = 1.50 TC(MIN.) = 20.59 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 315.00 TO NODE 310.03 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.546 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 3.05 EFFECTIVE AREA(ACRES) = 223.56 AVERAGED Fm(INCH /HR) = .106 TOTAL AREA(ACRES) = 285.80 PEAK -FLOW RATE(CFS) = 514.83 TC(MIN)-_ 20.59 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.00 TO NODE 310.03 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.546 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 1; SUBAREA AREA(ACRES) = 6.90 SUBAREA RUNOFF(CFS) = 15.34 EFFECTIVE AREA(ACRES) = 230.46 AVERAGED Fm(INCH /HR) = .105 TOTAL AREA(ACRES) = 292.70 11 PEAK FLOW RATE(CFS) = 514.83 TC(MIN) = 20.59 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 310.03 TO NODE 311.01 IS CODE = 3 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 11 DEPTH OF FLOW IN 93.0 INCH PIPE IS 75.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.5 11 17 `\ UPSTREAM NODE ELEVATION = 1031.40 [^1 a DOWNSTREAM NODE ELEVATION = 1031.1A _\ 11 FLOWLENGTH(FEET) = 100.00 INGS = .013 ESTIMATED PIPE DIAMETER(INCH) = 93.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 14.83 TRAVEL TIME(MIN.) = .13 TC( = 20.72 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: [il TIME OF CONCENTRATION(MINUTES) = 20.72 RAINFALL INTENSITY (INCH. /HOUR) = 2.54 EFFECTIVE STREAM AREA(ACRES) = 230.46 TOTAL STREAM AREA(ACRES) = 292.70 Fil PEAK FLOW RATE(CFS) AT CONFLUENCE = 514.83 LOB CONFLUENCE INFORMATION: ril STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 514.83 20.72 2.536 .10 230.46 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. fli SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 514.83 230.46 COMPUTED CONFLUENCE EST : AS FOLLOWS: PEAK FLOW RATE(CFS) = TIME(MINUTES) = 20.719 EFFECTIVE AREA(ACRES) - 1 .•6 TOTAL AREA(ACRES) = 292.70 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 292.70 EFFECTIVE AREA(ACRES) = 230.46 PEAK FLOW RATE(CFS) = 514.83 END OF RATIONAL METHOD ANALYSIS Li [1 18 [1 0 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) 1 Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 1 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** \ * EMPIRE CENTER W. SIDE OF PROMOTION CENTER 1 \/ * 2 5 -YR STORM * BY:J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FILE NAME: FECNLC.025 TIME /DATE OF STUDY: 6:54 7/11/1990 11 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL * -- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 II COMPUTED RAINFALL INTENSITY DATA: STORM EVENT . = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** li FLOW PROCESS FROM NODE 103.00 TO NODE 103.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< li NATURAL POOR COVER TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 I INITIAL SUBAREA FLOW- LENGTH = 260.00 UPSTREAM ELEVATION = 1110.00 DOWNSTREAM ELEVATION = 1105.00 11 ELEVATION DIFFERENCE = 5.00 TC = .525 *[( 260.00 ** 3.00)/( 5.00)] ** .20 = 10.699 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.999 1 SOIL CLASSIFICATION IS "A" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .4100 SUBAREA RUNOFF(CFS) = 5.83 TOTAL AREA(ACRES) = 2.50 PEAK FLOW RATE(CFS) = 5.83 II II 1 II II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.01 TO NODE 103.02 IS CODE = 5 1 » » >COMPUTE TRAPEZOIDAL - CHANNEL FLOW « «< » » >TRAVELTIME THRU SUBAREA« «< II UPSTREAM NODE ELEVATION = 1105.00 DOWNSTREAM NODE ELEVATION = 1095.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 150.00 CHANNEL BASE(FEET) = 40.00 "Z" FACTOR = 99.990 MANNINGS FACTOR = .030 MAXIMUM DEPTH(FEET) = .50 CHANNEL FLOW THRU SUBAREA(CFS) = 5.83 FLOW VELOCITY(FEET /SEC) = 1.56 FLOW DEPTH(FEET) = .08 TRAVEL TIME(MIN.) = 1.60 TC(MIN.) = 12.30 EJI **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.10 TO NODE 103.02 IS CODE = 8 MI » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< = ___ = == 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.758 SOIL CLASSIFICATION IS "A" NATURAL POOR COVER "BARREN" SUBAREA LOSS RATE, Fm(INCH /HR) = .4100 J SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 4.02 EFFECTIVE AREA(ACRES) = 4.40 di AVERAGED Fm(INCH/HR) = .410 TOTAL: AREA(ACRES) = 4.40 PEAK. FLOW RATE(CFS) =. 9.30 ill TC(MIN) = 12.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** di FLOW PROCESS FROM NODE 103.20 TO NODE 103.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.758 SOIL CLASSIFICATION IS "A" ril Lim COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 6.47 EFFECTIVE AREA(ACRES) = 7.10 AVERAGED Fm(INCH/HR) = .291 II TOTAL AREA(ACRES) = 7.10 PEAK FLOW RATE(CFS) = 15.76 TC(MIN) = 12.30 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.02 TO NODE 103.11 IS CODE = 3 II » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 1 DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.1 INCHES 1 2 1 PIPEFLOW VELOCITY(FEET /SEC.) = 7.0 UPSTREAM NODE ELEVATION = 1087.80 11 DOWNSTREAM NODE ELEVATION = 1076.33 FLOWLENGTH(FEET) = 1400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 15.76 TRAVEL TIME(MIN.) = 3.31 TC(MIN.) = 15.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.30 TO NODE 103.11 IS CODE = 8 11 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.390 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 5 -7 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .3 SUBAREA AREA(ACRES) = 7.90 SUBAREA RUNOFF(CFS) = 14.33 EFFECTIVE AREA(ACRES) = 15.00 AVERAGED Fm(INCH /HR) = .335 TOTAL AREA(ACRES) = 15.00 PEAR FLOW RATE(CFS) = 27.74 TC(MIN) = 15.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 116.10 TO NODE 103.11 IS CODE = 8 » » >ADDITION.OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.390 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0970 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 5.57 EFFECTIVE AREA(ACRES) = 17.70 AVERAGED Fm(INCH /HR) = .299 TOTAL AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) = 33.32 TC(MIN) = 15.62 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 Al » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< MI CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.62 RAINFALL INTENSITY (INCH. /HOUR) = 2.39 IP EFFECTIVE STREAM AREA(ACRES) = 17.70 �lt L b TOTAL STREAM AREA(ACRES) = 17.70 �St� PEAK FLOW RATE(CFS) AT CONFLUENCE = 33.32 tvs kSer input l_1 CONFLUENCE INFORMATION: in -fib's F,Lr I� 3 II STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) II 1 33.32 15.62 2.390 .30 17.70 II RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE II NUMBER Q(CFS) AREA(ACRES) 1 33.32 17.70 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 33.32 TIME(MINUTES) = 15.615 EFFECTIVE AREA(ACRES) = 17.70 TOTAL AREA(ACRES) = 17.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 109.00 TO NODE 109.01 IS CODE = 2 »» >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< _ J DEVELOPMENT IS COMMERCIAL TC..= lc* [(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 3 > INITIAL : FLOW- LENGTH = 900.00 <; ;. �y UPSTREAM ELEVATION _.. 1098.00 = a DIFFERENCE :r 44. DOWNSTREAM, ELEVATION = 10 91.0 0 , 7.00 ; r =n «' � ELET.': .: = :.: =° , , VAION ....... :, 304 90000 3 . = TC < _- , *�( . ** 00) /( 7 00) ] ** .20 12.201 ai4125tYEAR RAINFALL INTENSITY(INCH /HOUR) = 2.772 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 i SUBAREA RUNOFF(CFS) = 21.12 TOTAL AREA(ACRES) = 8.70 PEAR FLOW RATE(CFS) = 21.12 1/ **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** li FLOW PROCESS FROM NODE 112.00 TO NODE 109.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW« «< I 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.772 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 II SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.67 EFFECTIVE AREA(ACRES) = 9.80 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 9.80 II PEAR FLOW RATE(CFS) = 23.79 TC(MIN) = 12.20 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 4 II FLOW PROCESS FROM NODE 115.10 TO NODE 109.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.772 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.07 SUBAREA RUNOFF(CFS) = 2.60 EFFECTIVE AREA(ACRES) = 10.87 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 10.87 PEAK FLOW RATE(CFS) = 26.38 TC(MIN) = 12.20 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** IP FLOW PROCESS FROM NODE 109.01 TO NODE 116.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 33.0 INCH PIPE IS 23.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 5.9 UPSTREAM NODE ELEVATION = 1080.70 DOWNSTREAM NODE ELEVATION = 1079.80 FLOWLENGTH(FEET) = 240.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 26.38 TRAVEL TIME(MIN.) = .67 TC(MIN.) = 12.87 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 116.00 TO NODE 116.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 14 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.684 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.30 SUBAREA RUNOFF(CFS) = 5.40 EFFECTIVE AREA(ACRES) = 13.17 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 13.17 11 PEAR FLOW RATE(CFS) = 30.92 TC(MIN) = 12.87 3 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 116.01 TO NODE 110.01 IS CODE = 3 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.3 5 ' • UPSTREAM NODE ELEVATION = 1079.80 DOWNSTREAM NODE ELEVATION = 1078.45 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 30.92 TRAVEL TIME(MIN.) = .87 TC(MIN.) = 13.75 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 110.00 TO NODE 110.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.581 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 11.40 SUBAREA RUNOFF(CFS) = 25.71 EFFECTIVE AREA(ACRES) = 24.57 AVERAGED Fm(INCH/HR) = .075 11 TOTAL AREA(ACRES) = 24.57 PEAR FLOW RATE(CFS) = 55.41 TC(MIN) = 13.75 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 113.00 TO NODE 110.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< _ 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.581 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 2.44 EFFECTIVE AREA(ACRES) = 25.65 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 25.65 PEAK FLOW RATE(CFS) = 57.84 TC(MIN) = 13.75 IE **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 118.00 TO NODE 110.01 IS CODE = 8 { » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.581 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.08 SUBAREA RUNOFF(CFS) = 2.44 EFFECTIVE AREA(ACRES) = 26.73 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 26.73 PEAK FLOW RATE(CFS) = 60.28 TC(MIN) = 13.75 6 A **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 110.01 TO NODE 103.11 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 42.0 INCH PIPE I 33.1 INCHES IS 33 C S PIPEFLOW VELOCITY(FEET /SEC.) = 7.4 UPSTREAM NODE ELEVATION = 1078.45 DOWNSTREAM NODE ELEVATION = 1076.33 FLOWLENGTH(FEET) = 520.00 MANNINGS N = . 013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SURAREA(CFS) = 60.28 TRAVEL TIME(MIN.) = 1.17 TC(MIN.) = 14.91 *** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.91 RAINFALL INTENSITY (INCH. /HOUR) = 2.46 EFFECTIVE STREAM AREA(ACRES) = 26.73 TOTAL STREAM AREA(ACRES) = 26.73 PEAR FLOW RATE(CFS) AT CONFLUENCE = 60.28 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 104.00 TO NODE 104.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL 1: TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 520.00 UPSTREAM ELEVATION = 1130.00 DOWNSTREAM ELEVATION = 1110.00 ELEVATION DIFFERENCE = 20.00 TC = .304 *[( 520.00 ** 3.00)1( 20.00)] ** .20 = 7.117 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.830 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = . 0970 SUBAREA RUNOFF(CFS) = 3.19 TOTAL AREA(ACRES) = . 95 PEAR FLOW RATE(CFS) = 3.19 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 104.01 TO NODE 103.11 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA ««< 7 UPSTREAM ELEVATION = 1110.00 DOWNSTREAM ELEVATION = 1088.00 STREET LENGTH(FEET) = 690.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 51.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAR = 37.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.19 STREETFLOW MODEL RESULTS: 11 STREET FLOWDEPTH(FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 8.38 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.58 PRODUCT OF DEPTH &VELOCITY = 1.17 STREETFLOW TRAVELTIME(MIN) = 3.21 TC(MIN) = 10.33 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.064 JP SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0970 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = .95 11 AVERAGED Fm(INCH /HR) = .097 TOTAL AREA(ACRES) = .95 PEAK FLOW RATE(CFS) = 3.19 END OF SUBAREA STREETFLOW HYDRAULICS: 11 DEPTH(FEET) = .33 HALFSTREET FLOODWIDTH(FEET) = 8.38 FLOW VELOCITY(FEET /SEC.) = 3.58 DEPTH *VELOCITY = 1.17 * * * * * * * * ** ' * * * * * * * ** * * ** * ** * * * * ** * ** '* ** * * ** * * * * * * * * * * * * * * * * * * * * * * * ** FLOW.. PROCESS FROM NODE 105.00 TO NODE 103.11 IS CODE = 8 1 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.064 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = .95 SUBAREA RUNOFF(CFS) = 2.54 EFFECTIVE AREA(ACRES) = 1.90 AVERAGED Fm(INCH/HR) = .097 TOTAL AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) = 5.07 TC(MIN) = 10.33 1 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 113.10 TO NODE 103.11 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 11 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.064 SOIL CLASSIFICATION IS "A" 11 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 1.38 SUBAREA RUNOFF(CFS) = 3.68 8 II EFFECTIVE AREA(ACRES) = 3.28 AVERAGED Fm(INCH /HR) = .097 I TOTAL AREA(ACRES) = 3.28 PEAK FLOW RATE(CFS) = 8.76 TC(MIN) = 10.33 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 10.33 RAINFALL INTENSITY (INCH. /HOUR) = 3.06 EFFECTIVE STREAM AREA(ACRES) = 3.28 TOTAL STREAM AREA(ACRES) = 3.28 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.76 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE 1: NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 60.28 14.91 2.457 .08 26.73 2 8.76 10.33 3.064 .10 3.28 li RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. li SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) f: 1 67.24 30.01 .!!�� 2 61.11 21.79 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 1: PEAR FLOW RATE(CFS) = 67.24 TIME(MINUTES) = 14.914 EFFECTIVE AREA(ACRES) = 30.01 TOTAL AREA(ACRES) = 30.01 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 11 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.91 RAINFALL INTENSITY (INCH. /HOUR)= 2.46 EFFECTIVE STREAM AREA(ACRES) = 30.01 TOTAL STREAM AREA(ACRES) = 30.01 PEAR FLOW RATE(CFS) AT CONFLUENCE = 67.24 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II 9 II I FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 7 11 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.62 RAIN INTENSITY(INCH /HOUR) = 2.39 EFFECTIVE AREA(ACRES) = 17.70 TOTAL AREA(ACRES) = 17.70 PEAK FLOW RATE(CFS) = 33.32 AVERAGED LOSS RATE, Fm(IN /HR) = .300 I: * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 103.11 TO NODE 103.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< { » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.62 RAINFALL INTENSITY (INCH. /HOUR) = 2.39 EFFECTIVE STREAM AREA(ACRES) = 17.70 TOTAL STREAM AREA(ACRES) = 17.70 111 PEAK FLOW RATE(CFS) AT CONFLUENCE = 33.32 J CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 1 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 67.24 14.91 2.457 .08 30.01 2 :, 33.32 15.62 2.390 .30 17.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 100.08 46.91 2 98.66 47.71 3E COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: - PEAK FLOW RATE(CFS) = 100.08 TIME(MINUTES) = 14.914 EFFECTIVE AREA(ACRES) = 46.91 TOTAL AREA(ACRES) = 47.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 103.11 TO NODE 117.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< 1 DEPTH OF FLOW IN 51.0 INCH PIPE IS 38.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.6 II UPSTREAM NODE ELEVATION = 1076.33 DOWNSTREAM NODE ELEVATION = 1075.90 11 10 II FLOWLENGTH FEET = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 II PIPEFLOW THRU SUBAREA(CFS) = 100.08 TRAVEL TIME(MIN.) = .19 TC(MIN.) = 15.11 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.00 TO NODE 117.01 IS CODE = 8 II » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.438 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0970 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 5.48 EFFECTIVE AREA(ACRES) = 49.51 AVERAGED Fm(INCH /HR) = .154 TOTAL AREA(ACRES) = 50.31 PEAR FLOW RATE(CFS) = 101.77 TC(MIN) = 15.11 JP **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< = = _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE li TIME OF CONCENTRATION(MINUTES) = 15.11 RAINFALL INTENSITY (INCH. /HOUR) = 2.44 EFFECTIVE STREAM AREA(ACRES) = 49.51 IP TOTAL STREAM AREA(ACRES) = 50.31 PEAR FLOW RATE(CFS) AT CONFLUENCE = 101.77 CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) il 1 101.77 15.11 2.438 .15 49.51 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. 11 SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 11 1 101.77 49.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 101.77 TIME(MINUTES) = 15.107 EFFECTIVE AREA(ACRES) = 49.51 TOTAL AREA(ACRES) 50.31 II END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 50.31 II 11 II EFFECTIVE AREA(ACRES) = 49.51 PEAK FLOW RATE(CFS) = 101.77 711 END OF RATIONAL METHOD ANALYSIS TA u-561) s 14SF — See e/Prt aki Nob E // 7 / Li L1 r 7 IR 7.1 11111 LE [11 12 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared P Y P for: HALL & FOREMAN * * * * * * * * * * * * * ** * * * * * * * * DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER L NE "C" NO OF INTERSECTION OF LINE "A" * Q25 YEAR * BY: J.K. * * * * * * * * * * * * * * * * * * * ** *. ************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECSLC.025 TIME /DATE OF STUDY: 13: 2 7/13/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10- YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED; RAINFALL INTENSITY DATA: STORM EVENT = 25.00 -' 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.92 RAIN INTENSITY(INCH /HOUR) = 2.46 EFFECTIVE AREA(ACRES) = 49.51 TOTAL AREA(ACRES) = 50.31 PEAK FLOW RATE(CFS) = 101.77 AVERAGED LOSS RATE, Fm(IN /HR) = .160 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .17(INCHES /HOUR) �4 //iUT Few'' ,==Ec^1LG. **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) ««< LI 1 DEPTH OF FLOW IN 42.0 INCH PIPE IS 30.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.6 UPSTREAM NODE ELEVATION = 1075.90 DOWNSTREAM NODE ELEVATION = 1066.47 FLOWLENGTH(FEET) = 670.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 101.77 TRAVEL TIME(MIN.) = .82 TC(MIN.) = 15.74 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.02 TO NODE 117.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.74 RAINFALL INTENSITY.(INCH. /HOUR) = 2.38 EFFECTIVE STREAM AREA(ACRES) = 49.51 TOTAL STREAM AREA(ACRES) = 50.31 PEAR FLOW RATE(CFS) AT CONFLUENCE = 101.77 gl **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 118.10 TO NODE 117.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = R *[(LENGTH* *'3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 UPSTREAM ELEVATION = 1090.10 DOWNSTREAM ELEVATION = 1087.90 ELEVATION DIFFERENCE = 2.20 TC = .304 *[( 500.00 ** 3.00) /( 2.20)] ** .20 = 10.809 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.981 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 2.98 TOTAL AREA(ACRES) = 1.14 PEAR FLOW RATE(CFS) = 2.98 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 301.00 TO NODE 117.02 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1087.90 DOWNSTREAM ELEVATION = 1081.00 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. 1 STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 2 1 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.94 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 12.97 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.64 PRODUCT OF DEPTH &VELOCITY = 1.10 STREETFLOW TRAVELTIME(MIN) = 4.11 TC(MIN) = 14.92 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.457 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 3.86 EFFECTIVE AREA(ACRES) = 2.94 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.94 PEAK FLOW RATE(CFS) = 6.30 END OF SUBAREA STREETFLOW HYDRAULICS: 10 DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 FLOW VELOCITY(FEET /SEC.) = 3.02 DEPTH *VELOCITY = 1.31 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.02 TO NODE 117.02 IS CODE _ • 1 it » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.92 RAINFALL INTENSITY (INCH. /HOUR) = 2.46 EFFECTIVE STREAM AREA(ACRES) = 2.94 TOTAL STREAM AREA(ACRES) = 2.94 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.30 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) gi 1 101.77 15.74 2.379 .16 49.51 2 6.30 14.92 2.457 .08 2.94 11 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: 11 STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 107.87 52.45 2 106.14 49.86 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 107.87 TIME(MINUTES) = 15.739 EFFECTIVE AREA(ACRES) = 53.25 52.45 TOTAL AREA(ACRES) = �� 3 wrtrrrn. 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.02 TO NODE 300.12 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER — ESTIMATED PIPESIZE (NON — PRESSURE FLOW) « «< DEPTH OF FLOW IN 42.0 INCH PIPE IS 31.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.8 UPSTREAM NODE ELEVATION = 1066.47 DOWNSTREAM NODE ELEVATION = 1061.50 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 107.87 TRAVEL TIME(MIN.) = .42 TC(MIN.) = 16.16 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.00 TO NODE 300.12 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< gl 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.342 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = 8.98 EFFECTIVE AREA(ACRES) = 56.85 AVERAGED Fm(INCH /HR) = .149 TOTAL AREA(ACRES) = 57.65 PEAR FLOW RATE(CFS) = 112.18 TC(MIN) = 16.16 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.12 TO NODE 300.12 IS CODE = 1 � » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< _ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.16 RAINFALL INTENSITY (INCH. /HOUR) = 2.34 EFFECTIVE STREAM AREA(ACRES) = 56.85 E' TOTAL STREAM AREA(ACRES) = 57.65 PEAK FLOW RATE(CFS) AT CONFLUENCE = 112.18 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.10 TO NODE 300.11 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL 1 TC = R *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 4 1 i INITIAL SUBAREA FLOW - LENGTH = 600.00 UPSTREAM ELEVATION = 1093.60 DOWNSTREAM ELEVATION = 1087.70 ELEVATION DIFFERENCE = 5.90 TC = .304 *[( 600.00 ** 3.00)/( 5.90)] ** .20 = 9.899 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.142 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 23.19 TOTAL AREA(ACRES) = 8.40 PEAK FLOW RATE(CFS) = 23.19 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.11 TO NODE 300.21 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.4 UPSTREAM NODE ELEVATION = 1074.40 DOWNSTREAM NODE ELEVATION = 1070.90 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.19 TRAVEL.TIME(MIN.) = .70 TC(MIN.) = 10.60 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.20 TO NODE. 300.21 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 11 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.017 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.30 SUBAREA RUNOFF(CFS) = 14.03 EFFECTIVE AREA(ACRES) = 13.70 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 13.70 PEAK FLOW RATE(CFS) = 36.27 TC(MIN) = 10.60 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.21 TO NODE 300.31 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< ■ DEPTH OF FLOW IN 30.0 INCH PIPE IS 22.1 INCHES AI PIPEFLOW VELOCITY(FEET /SEC.) = 9.4 UPSTREAM NODE ELEVATION = 1070.90 DOWNSTREAM NODE ELEVATION = 1068.00 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 5 II ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 36.27 TRAVEL TIME(MIN.) = .50 TC(MIN.) = 11.09 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.30 TO NODE 300.31 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< II 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.935 SOIL CLASSIFICATION IS "B" gl COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.80 SUBAREA RUNOFF(CFS) = 9.78 EFFECTIVE AREA(ACRES) = 17.50 AVERAGED Fm(INCH /HR) = .075 11 TOTAL AREA(ACRES) = 17.50 PEAR FLOW RATE(CFS) = 45.04 TC(MIN) = 11.09 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.31 TO NODE 300.12 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW ) « «< DEPTIL OF#,FLOW , IN f. 27.0 INCH . PIPE .IS 20.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.9 UPSTREAMNODE;. EL EVATION = 1068.00 DOWNSTREAM NODE ELEVATION = 1061.50 FLOWLENGTH ( FEET ) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER( INCH) = 27.00 NUMBER OF PIPES = 1 I PIPEFLOW THRU SUBAREA(CFS) = 45.04 TRAVEL TIME(MIN.) = .30 TC(MIN.) = 11.39 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.01 TO NODE 300.01 IS CODE = 1 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.39 RAINFALL INTENSITY (INCH. /HOUR) = 2.89 II EFFECTIVE STREAM AREA(ACRES) = 17.50 TOTAL STREAM AREA(ACRES) = 17.50 PEAR FLOW RATE(CFS) AT CONFLUENCE = 45.04 II CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 1 112.18 16.16 2.342 .15 56.85 1 6 II 2 45.04 11.39 2.888 .08 17.50 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 148.47 74.35 2 143.83 57.58 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 148.47 TIME(MINUTES) = 16.162 . EFFECTIVE AREA(ACRES) = 74.35 i TOTAL AREA(ACRES) = 75.15 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.12 TO NODE 303.01 IS CODE = 3 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 48.0 INCH PIPE IS 35.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.0 UPSTREAM NODE ELEVATION = 1061.50 DOWNSTREAM NODE ELEVATION = 1054.70 DE FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 148.47 TRAVEL TIME(MIN.) = .53 TC(MIN.) = 16.70 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 303.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.70 GE RAINFALL INTENSITY (INCH. /HOUR) = 2.30 EFFECTIVE STREAM AREA(ACRES) = 74.35 TOTAL STREAM AREA(ACRES) = 75.15 PEAK FLOW RATE(CFS) AT CONFLUENCE = 148.47 1t **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.10 TO NODE 303.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 750.00 UPSTREAM ELEVATION = 1082.80 LAM 7 , DOWNSTREAM ELEVATION = 1075.80 ELEVATION DIFFERENCE = 7.00 TC = .304 *[( 750.00 ** 3.00)/( 7.00)] ** .20 = 10.937 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.960 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 22.33 TOTAL AREA(ACRES) = 8.60 PEAK FLOW RATE(CFS) = 22.33 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.11 TO NODE 303.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1060.30 DOWNSTREAM NODE ELEVATION = 1054.70 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 22.33 K. TRAVEL TIME(MIN.) = .43 TC(MIN.) = 11.37 al **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.00 TO NODE 303.01 IS CODE = 8 gi » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW ««< 25: YEAR .RAINFALL INTENSITY(INCH /HOUR) = 2.892 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 4.82 EFFECTIVE AREA(ACRES) = 10.50 al AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 10.50 PEAK FLOW RATE(CFS) = 26.62 TC(MIN) = 11.37 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** J FLOW PROCESS FROM NODE 303.01 TO NODE 303.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< J » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 11 TIME OF CONCENTRATION(MINUTES) = 11.37 RAINFALL INTENSITY (INCH. /HOUR) = 2.89 EFFECTIVE STREAM AREA(ACRES) = 10.50 TOTAL STREAM AREA(ACRES) = 10.50 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.62 1 8 1 4 II CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE II NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 148.47 16.70 2.296 .13 74.35 II 2 26.62 11.37 2.892 .08 10.50 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. I! SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) ii 1 169.46 84.85 2 155.53 61.13 li COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 169.46 TIME(MINUTES) = 16.696 EFFECTIVE AREA(ACRES) = 84.85 TOTAL AREA(ACRES) = 85.65 * * * * * ** ********************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 303.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.6 li UPSTREAM NODE ELEVATION = 1054.70 DOWNSTREAM NODE ELEVATION = 1053.28 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 169.46 TRAVEL TIME(MIN.) = .11 TC(MIN.) = 16.80 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 304.00 TO NODE 303.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.288 II SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.31 SUBAREA RUNOFF(CFS) = 4.60 1 EFFECTIVE AREA(ACRES) = 87.16 AVERAGED Fm(INCH /HR) = .123 TOTAL AREA(ACRES) = 87.96 PEAR FLOW RATE(CFS) = 169.77 II TC(MIN) = 16.80 i **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.02 TO NODE 306.01 IS CODE = 3 : II 9 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.6 UPSTREAM NODE ELEVATION = 1053.28 DOWNSTREAM NODE ELEVATION = 1039.50 FLOWLENGTH(FEET) = 970.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 169.77 TRAVEL TIME(MIN.) = 1.04 TC(MIN.) = 17.84 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.00 TO NODE 306.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.207 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 7.48 EFFECTIVE AREA(ACRES) = 91.06 AVERAGED Fm(INCH /HR) = .121 TOTAL AREA(ACRES) = 91.86 PEAR FLOW RATE(CFS) = 170.91 TC(MIN) := 17.84 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.84 RAINFALL INTENSITY (INCH. /HOUR) = 2.21 EFFECTIVE STREAM AREA(ACRES) = 91.06 TOTAL STREAM AREA(ACRES) = 91.86 PEAR FLOW RATE(CFS) AT CONFLUENCE = 170.91 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 300.01 IS CODE = 2 »» >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< ,o/' 302_ ifeEli DEVELOPMENT IS COMMERCIAL 1 TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 1000.00 UPSTREAM ELEVATION = 1088.40 DOWNSTREAM ELEVATION = 1080.60 ELEVATION DIFFERENCE = 7.80 10 ' TC = .304* 1000.00 ** 3.00)/( 7.80)]** .20 = 12.719 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.704 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 5.68 TOTAL AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) = 5.68 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 300.01 TO NODE 303.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< 10 UPSTREAM ELEVATION = 1080.60 DOWNSTREAM ELEVATION = 1074.30 STREET LENGTH(FEET) = 600.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.21 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .45 HALFSTREET FLOODWIDTH(FEET) = 14.59 AVERAGE FLOW.VELOCITY(FEET /SEC.) = 3.11 rr PRODUCT,.. OF. DEPTH &VELOCITY = 1.40 STREETFLOW;=.TRAVELTIME(MIN) = 3.22 TC(MIN) = 15.94 25. YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.361 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.50 SUBAREA RUNOFF(CFS) = 3.09 EFFECTIVE AREA(ACRES) = 3.90 10 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 8.03 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .47 HALFSTREET FLOODWIDTH(FEET) = 15.38 1 FLOW VELOCITY(FEET /SEC.) = 3.14 DEPTH *VELOCITY = 1.46 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 303.01 TO NODE 306.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1074.30 DOWNSTREAM ELEVATION = 1063.37 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 11 11 11 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 10.18 STREETFLOW MODEL RESULTS: II STREET FLOWDEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 16.88 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.35 PRODUCT OF DEPTH &VELOCITY = 1.66 II STREETFLOW TRAVELTIME(MIN) = 4.97 TC(MIN) = 20.91 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.006 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 2.50 SUBAREA RUNOFF(CFS) = 4.35 EFFECTIVE AREA(ACRES) = 6.40 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 6.40 PEAK FLOW RATE(CFS) = 11.13 END OF SUBAREA STREETFLOW HYDRAULICS: 10 DEPTH(FEET) = .51 HALFSTREET FLOODWIDTH(FEET) = 17.63 FLOW VELOCITY(FEET /SEC.) = 3.38 DEPTH *VELOCITY = 1.72 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND.- COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< = al CONFLUENCEWALUESYUSED FOR INDEPENDENT STREAM 2 ARE: T DMA OF P CONCENTRATION ( MINUTES ) = 20.91 RAINFALL #INTENSITY (INCH. /HOUR) = 2.01 ;Q EFFECTIVE STREAM AREA(ACRES) = 6.40 TOTAL STREAM AREA(ACRES) = 6.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.13 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) b 1 170.91 17.84 2.207 .12 91.06 a C 2 11.13 20.91 2.006 .08 6.40 ;() ® c RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO '‘1 CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: \ STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 181.39 96.52 N 2 165.63 97.46 C OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 181.39 TIME(MINUTES) = 17.842 i EFFECTIVE AREA(ACRES) = 96.52 ` TOTAL AREA(ACRES) = 98.26 fMI 12 1 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.84 ril ii RAINFALL INTENSITY (INCH. /HOUR) = 2.21 EFFECTIVE STREAM AREA(ACRES) = 96.52 TOTAL STREAM AREA(ACRES) = 98.26 10 PEAR FLOW RATE(CFS) AT CONFLUENCE = 181.39 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< II USER - SPECIFIED VALUES ARE AS FOLLOWS: �/h TC(MIN) 27.91 RAIN INTENSITY(INCH /HOUR) = 1.69 F EFFECTIVE AREA(ACRES) = 166.42 /NE JS di TOTAL AREA(ACRES) = 166.42 PEAR FLOW RATE(CFS) = 243.3 AVERAGED LOSS RATE, Fm(IN /HR) = .100 fJ 3O' OE **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< OE CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 27.91 RAINFALL INTENSITY (INCH. /HOUR) = 1.69 EFFECTIVE STREAM AREA(ACRES) = 166.42 TOTAL STREAM AREA(ACRES) = 166.42 PEAK FLOW RATE(CFS) AT CONFLUENCE = 243.36 /* CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) III 181.39 17.84 2.207 .12 96.52 2 243.36 27.91 1.687 .10 166.42 di RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: LI STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) ( 387.89 202.91 l� 2 379.62 262.94 1 13 �1 i a COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 387.89 TIME(MINUTES) = 17.842 EFFECTIVE AREA(ACRES) = 202.91 TOTAL AREA(ACRES) = 264.68 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 84.0 INCH PIPE IS 65.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1039.50 DOWNSTREAM NODE ELEVATION = 1038.65 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 387.89 rli TRAVEL TIME(MIN.) = .28 TC(MIN.) = 18.12 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 307.10 TO NODE 306.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< _ 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.186 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = .95 EFFECTIVE AREA(ACRES) = 203.41 AVERAGED Fm(INCH /HR) = .109 TOTAL AREA(ACRES) = 265.18 PEAK FLOW RATE(CFS) = 387.89 TC(MIN) = 18.12 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.02 TO NODE 309.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< DEPTH OF FLOW IN 84.0 INCH PIPE IS 65.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1038.65 DOWNSTREAM NODE ELEVATION = 1036.95 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 387.89 TRAVEL TIME(MIN.) = .56 TC(MIN.) = 18.67 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II 14 11 FLOW PROCESS FROM NODE 309.00 TO NODE 309.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.147 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 11.20 SUBAREA RUNOFF(CFS) = 20.89 EFFECTIVE AREA(ACRES) = 214.61 AVERAGED Fm(INCH/HR) = .107 TOTAL AREA(ACRES) = 276.38 PEAK FLOW RATE(CFS) = 394.04 TC(MIN) = 18.67 Jo **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 309.01 TO NODE 309.02 IS CODE = 3 i J » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< DEPTH OF FLOW IN 84.0 INCH PIPE IS 67.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1036.95 DOWNSTREAM NODE ELEVATION = 1036.53 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 394.04 TRAVEL TIME(MIN.) = .14 TC(MIN.) = 18.81 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 314.00 TO NODE 309.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.138 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA .AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.23 EFFECTIVE AREA(ACRES) = 215.81 AVERAGED Fm(INCH/HR) = .107 TOTAL AREA(ACRES) = 277.58 PEAK FLOW RATE(CFS) = 394.42 TC(MIN) = 18.81 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 309.02 TO NODE 310.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< ^ 11 DEPTH OF FLOW IN 69.0 INCH PIPE IS 53.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 18.3 15 L I UPSTREAM NODE ELEVATION = 1036.53 DOWNSTREAM NODE ELEVATION = 1035.25 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 394.42 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 18.91 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 310.00 TO NODE 310.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.131 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 5.40 SUBAREA RUNOFF(CFS) = 9.99 EFFECTIVE AREA(ACRES) = 221.21 AVERAGED Fm(INCH /HR) = .106 TOTAL AREA(ACRES) = 282.98 PEAK FLOW RATE(CFS) = 403.21 TC(MIN) = 18.91 ** * ** * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * * * ** ** * * * * * * * ** FLOW PROCESS FROM NODE 310.01 TO NODE 310.02 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< _____________ _ __ DEPTH OF FLOW IN 84.0 INCH PIPE IS 68.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1035.25 DOWNSTREAM NODE ELEVATION = 1033.97 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 403.21 TRAVEL TIME(MIN.) = .41 TC(MIN.) = 19.32 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 314.10 TO NODE 310.02 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.104 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.45 SUBAREA RUNOFF(CFS) = 2.65 EFFECTIVE AREA(ACRES) = 222.66 IP AVERAGED Fm(INCH/HR) = .106 TOTAL AREA(ACRES) = 284.43 PEAK FLOW RATE(CFS) = 403.21 11 TC(MIN) = 19.32 16 l **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ; I/ FLOW PROCESS FROM NODE 310.02 TO NODE 310.03 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 120.0 INCH PIPE IS 92.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.1 6 UPSTREAM NODE ELEVATION = 1.40 DOWNSTREAM NODE ELEVATION = 1030.97 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 120.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 403.21 TRAVEL TIME(MIN.) = 1.60 TC(MIN.) = 20.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 315.00 TO NODE 310.03 IS CODE = 8 1 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.006 :11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.37 SUBAREA RUNOFF(CFS) = 2.38 EFFECTIVE AREA(ACRES) = 224.03 AVERAGED Fm(INCH/HR) = _ .106 TOTAL ..AREA(ACRES) = 285.80 PEAK = A rum .: RATE(CFS).= 403.21 TC(MIN) = 20.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.00 TO NODE 310.03 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.006 [li SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA AREA(ACRES) = 6.90 SUBAREA RUNOFF(CFS) = 11.99 EFFECTIVE AREA(ACRES) = 230.93 AVERAGED Fm(INCH/HR) = .105 TOTAL AREA(ACRES) = 292.70 PEAK FLOW RATE(CFS) = 403.21 TC(MIN) = 20.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 310.03 TO NODE 311.01 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW)« «< 17 { e DEPTH OF FLOW IN 87.0 INCH PIPE IS 66.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1031.40 DOWNSTREAM NODE ELEVATION = 1031.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 11 ESTIMATED PIPE DIAMETER(INCH) = 87.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 403.21 TRAVEL TIME(MIN.) = .14 TC(MIN.) = 21.06 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 1: » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.06 RAINFALL INTENSITY (INCH. /HOUR) = 2.00 EFFECTIVE STREAM AREA(ACRES) = 230.93 TOTAL STREAM AREA(ACRES) = 292.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 403.21 10 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 10 • 1 403.21 21.06 1.998 .10 230.93 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE di NUMBER Q(CFS) AREA(ACRES) 1 403.21 230.93 Lei COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 403.21 TIME(MINUTES) = 21.062 EFFECTIVE AREA(ACRES) = 230.93 TOTAL AREA(ACRES) = 292.70 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 292.70 EFFECTIVE AREA(ACRES) = 230.93 PEAK FLOW RATE(CFS) = 403.21 END OF RATIONAL METHOD ANALYSIS E c / � � � Q Fog / -� G / J G/ L 18 3 CilTC#15.475/N5 /Va. 9le C3 3 #670 0,435 HI el136 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY ***J************ * HYDROGY FOR C.B. #C9 / * THIS CATCH BASIN WILL TAKE IN SOME 100 -YR Q FROM SIE AVE. & ALSO * THE DIFFERENCE OF Q100 -Q25 FROM LINE "C" AND PART OF LINE "B" *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECCB9.100 TIME/DATE OF STUDY: 11:31 7/16/1990 ti USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL * -- 91 USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 1 *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSI.TY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED.: RAINFALL INTENSITY DATA: STORM EVENT` ='" 100.00 ° ' 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 gi **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 108.01 TO NODE 108.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< di USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 21.10 RAIN INTENSITY(INCH /HOUR) = 2.51 EFFECTIVE AREA(ACRES) = 11.50 { TOTAL AREA(ACRES) = 11.50 PEAK FLOW RATE(CFS) = 24.94 AVERAGED LOSS RATE, Fm(IN /HR) = .140 Al ,5 fF ci /c. roz 77#6 (Q,..- a zs) A T Abbe # /o 6.# hAI6 <$ **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 108.01 TO NODE 117.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1091.50 DOWNSTREAM ELEVATION = 1087.90 STREET LENGTH(FEET) = 1600.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 38.50 I1 i 11 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 36.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 24.94 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 25.10 AVERAGE FLOW VELOCITY(FEET /SEC.) = 1.92 11 PRODUCT OF DEPTH &VELOCITY = 1.27 S TREETFLOW TRAVELTIME(MIN) = 13.88 TC(MIN) = 34.97 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.852 11 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = 11.50 AVERAGED Fm(INCH /HR) = .140 TOTAL AREA(ACRES) = 11.50 PEAR FLOW RATE(CFS) = 24.94 END OF SUBAREA STREETFLOW HYDRAULICS: gl DEPTH(FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 25.10 FLOW VELOCITY(FEET /SEC.) = 1.92 DEPTH *VELOCITY = 1.27 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 34.97 RAINFALL INTENSITY (INCH. /HOUR) = 1.85 EFFECTIVE STREAM AREA(ACRES) = 11.50 TOTAL STREAM AREA(ACRES) = 11.50 PEAR FLOW RATE(CFS) AT CONFLUENCE = 24.94 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 7 J » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.92 RAIN INTENSITY(INCH /HOUR) = 3.09 EFFECTIVE AREA(ACRES) = 11.50 TOTAL AREA(ACRES) = 11.50 PEAR FLOW RATE(CFS) = 30.14 AVERAGED LOSS RATE, Fm(IN /HR) = .160 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .18(INCHES /HOUR) 58F 77./ (Q �.. 01 - � s) ,T Alone # /J 7 0 / tIW' C cA /cant 71,0, S 7 * *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 2 f ' FLOW PROCESS FROM NODE 117.01 TO NODE 117.01 IS CODE = 1 11 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.92 RAINFALL INTENSITY (INCH. /HOUR) = 3.09 EFFECTIVE STREAM AREA(ACRES) = 11.50 TOTAL STREAM AREA(ACRES) = 11.50 PEAR FLOW RATE(CFS) AT CONFLUENCE = 30.14 1 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) I 1 24.94 34.97 1.852 .14 11.50 A 2 30.14 14.92 3.088 .16 11.50 1 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: 1 STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1. 42.36 23.00 2;:..;, . 48.46 16.41 J. .. COMPUTED; CONFLUENCE ESTIMATES ARE AS FOLLOWS: ';PEAK.FLOW'RATE(CFS) = ';.; TIME(MINUTES) = 14.920 J: EFFECTIVEa: AREA (ACRES) , `.= 16.41 TOTAL AREA(ACRES) = 23.00 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 117.01 TO NODE 306.01 IS CODE = 6 lE » »> COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1087.90 DOWNSTREAM ELEVATION = 1063.37 1 STREET LENGTH(FEET) = 2600.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 50.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 48.00 1 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 ** = 48.46 TRAVELTIME COMPUTED USING MEAN FLOW(CFS) STREETFLOW MODEL RESULTS: II STREET FLOWDEPTH(FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 24.88 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.80 I PRODUCT OF DEPTH &VELOCITY = 2.49 STREETFLOW TRAVELTIME(MIN) = 11.41 TC(MIN) = 26.33 1 3 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.197 1 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) _ .00 EFFECTIVE AREA(ACRES) = 16.41 AVERAGED Fm(INCH/HR) = .154 TOTAL AREA(ACRES) = 23.00 PEAR FLOW RATE(CFS) = 48.46 END OF SUBAREA STREETFLOW HYDRAULICS: - 11 DEPTH(FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 24.88 FLOW VELOCITY(FEET /SEC.) = 3.80 DEPTH *VELOCITY = 2.49 ~?� **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 26.33 RAINFALL INTENSITY (INCH. /HOUR) = 2.20 EFFECTIVE STREAM AREA(ACRES) = 16.41 TOTAL STREAM AREA(ACRES) = 23.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 48.46 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE - 306.01 - ._TO NODE 306.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< IISER- SPECIFIED VALUES ARE AS FOLLOWS: - TC(MIN) = 27.19 RAIN INTENSITY(INCH /HOUR) = 2.15 EFFECTIVE AREA(ACRES) = 4.74 E'' TOTAL AREA(ACRES) = 4.74 PEAK FLOW RATE(CFS) = 7.12 AVERAGED LOSS RATE, Fm(IN /HR) = .098 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM t: POSSIBLE VALUE OF .49(INCHES /HOUR) r4 )e- e . F-oic ats)A"T mpe#3*6 &VDo, SHEET **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 [JI » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: l � TIME OF CONCENTRATION(MINUTES) = 27.19 RAINFALL INTENSITY (INCH. /HOUR) = 2.15 EFFECTIVE STREAM AREA(ACRES) = 4.74 TOTAL STREAM AREA(ACRES) = 4.74 PEAR FLOW RATE(CFS) AT CONFLUENCE = 7.12 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 7 [1 4 L - II » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< II USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 17.70 RAIN INTENSITY(INCH /HOUR) = 2.79 EFFECTIVE AREA(ACRES) = 10.11 11 TOTAL AREA(ACRES) = 10.11 PEAK FLOW RATE(CFS) = 21.27 AVERAGED LOSS RATE, Fm(IN /HR) = .120 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM I I POSSIBLE VALUE OF .45(INCHES /HOUR) SEE' C,tc• Toe T/' (Qt.. -a ) iT /V-PE ,# 366.o 1 ` /A . n Sly ce-t ,- **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 306.01 IS CODE = 1 4 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 1 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: 311 TIME OF CONCENTRATION(MINUTES) = 17.70 RAINFALL INTENSITY (INCH. /HOUR) = 2.79 EFFECTIVE STREAM AREA(ACRES) = 10.11 TOTAL STREAM AREA(ACRES) = 10.11 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 21.27 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 "::; %;'' 48.46 26.33 2.197 .15 16.41 2 ' 7.12 27.19 2.155 .10 4.74 3 ,. 21.27 17.70 2.787 .12 10.11 ill ill RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: II STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) j 1 72.05 31.11 2 70.80 31.26 3 69.34 24.23 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: J PEAR FLOW RATE(CFS) = 72.05 TIME(MINUTES) = 26.325 EFFECTIVE AREA(ACRES) = 31.11 TOTAL AREA(ACRES) = 37.85 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 311.01 IS CODE = 6 1 » »> COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< _ II UPSTREAM ELEVATION = 1063.37 DOWNSTREAM ELEVATION = 1047.60 STREET LENGTH(FEET) = 2000.00 CURB HEIGTH(INCHES) = 8. II 5 11 1 STREET HALFWIDTH(FEET) = 50.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAR = 48.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 72.05 STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .76 _ HALFSTREET FLOODWIDTH(FEET) = 30.13 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.89 PRODUCT OF DEPTH &VELOCITY = 2.96 STREETFLOW TRAVELTIME(MIN) = 8.57 TC(MIN) = 34.90 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.855 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 JO SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) = .00 EFFECTIVE AREA(ACRES) = 31.11 AVERAGED Fm(INCH /HR) = .135 TOTAL AREA(ACRES). = 37.85 PEAK FLOW RATE(CFS) = 72.05 UP j , END OF ; SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) :. = :''; . 7 6 • HALFSTREET FLOODWIDTH(FEET) = 30.13 -FLOWVELOCITY(FEET /SEC.) 3.89 DEPTH *VELOCITY = 2.96 UP * * * * * * * * * * * * * * * * * * ** * **** * ************** * * * * * * * * * * ** * * * ** * * * *** *** * * *** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 34.90 Ul RAINFALL INTENSITY (INCH. /HOUR) = 1.85 EFFECTIVE STREAM AREA(ACRES) = 31.11 TOTAL STREAM AREA(ACRES) = 37.85 PEAK FLOW RATE(CFS) AT CONFLUENCE = 72.05 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311 \.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< 11 USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 20.72 RAIN INTENSITY(INCH /HOUR) = 2.54 EFFECTIVE AREA(ACRES) = 2.98 11 TOTAL AREA(ACRES) = 2.98 PEAK FLOW RATE(CFS) = 1.82 AVERAGED LOSS RATE, Fm(IN /HR) = .100 ' {{ Seer CALLS or 'TAT (Q,..- 0 S ) ,i r ,t4,0 - 31/ 0 l /NE c 6 6 11 11 ***ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF 1.86(INCHES /HOUR) **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 20.72 RAINFALL INTENSITY (INCH. /HOUR) = 2.54 EFFECTIVE STREAM AREA(ACRES) = 2.98 TOTAL STREAM AREA(ACRES) = 2.98 PEAR FLOW RATE(CFS) AT CONFLUENCE = 1.82 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.00 TO NODE 607.01 IS CODE = 2 op » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< JI DEVELOPMENT IS COMMERCIAL TC = * LEN TH ** 3.00 ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW- LENGTH = 150.00 01 UPSTREAM ELEVATION = 1055.70 DOWNSTREAM ELEVATION = 1055.62 ELEVATION = DIFFERENCE .- .08 .;, TIG , :304 *(( F150 .00 ** 3.00) /( .08)] ** .20 = 10.185 100: YEAR' RAINFALL INTENSITY ( INCH/HOUR ) = 3.883 SOIL CLASSIFICATION IS "B" di COMMERCIAL` SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 1.37 TOTAL AREA(ACRES) = .40 PEAR FLOW RATE(CFS) = 1.37 di **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 607.01 TO NODE 311.01 IS CODE = 6 al » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1055.62 DOWNSTREAM ELEVATION = 1047.60 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 50.00 01 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAR = 48.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 01 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.91 11 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .38 7 11 HALFSTREET FLOODWIDTH(FEET) = 10.97 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.81 1 PRODUCT OF DEPTH &VELOCITY = 1.06 STREETFLOW TRAVELTIME ( MIN ) = 3.86 TC(MIN) = 14.05 I 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.202 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 5.07 1 EFFECTIVE AREA(ACRES) = 2.20 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA (ACRES) = 2.20 PEAK FLOW RATE(CFS) = 6.19 11 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 13.25 FLOW VELOCITY(FEET /SEC.) = 3.19 DEPTH *VELOCITY = 1.35 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 1 »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< ill CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION( MINUTES) = 14.05 RAINFALL INTENSITY (INCH. /HOUR) = 3.20 EFFECTIVE STREAM AREA(ACRES) = 2.20 TOTAL STREAM AREA(ACRES) = 2 :20 Y; ,:; PEAK >FLOW :`. RATE (CFS) AT CONFLUENCE = 6.19 tip CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE I NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 72.05 34.90 1.855 .13 31.11 2 1.82 20.72 2.536 .10 2.98 3 6.19 14.05 3.202 .08 2.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) © 1 76.89 36.29 2 66.41 23.65 I 3 59.48 16.74 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 76.89 TIME(MINUTES) = 34.897 11 EFFECTIVE AREA(ACRES) = 36.29 TOTAL AREA(ACRES) = 43.03 ./ I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 11 8 1 i » »> DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< - II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 34.90 -1 RAINFALL INTENSITY (INCH. /HOUR) = 1.85 EFFECTIVE STREAM AREA(ACRES) = 36.29 TOTAL STREAM AREA(ACRES) = 43.03 PEAK FLOW RATE(CFS) AT CONFLUENCE = 76.89 11 J € * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 1 FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 7 ce- » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< Fil USER - SPECIFIED VALUES ARE AS FOLLOWS: li. TC(MIN) = 11.51 RAIN INTENSITY(INCH /HOUR) = 3.61 EFFECTIVE AREA(ACRES) = 5.12 AI TOTAL AREA(ACRES) = 5.12 PEAK FLOW RATE(CFS) = 3.39 AVERAGED LOSS RATE, Fm(IN /HR) = .075 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM iji POSSIBLE VALUE OF 2.87(INCHES /HOUR) T ( -a �a , 'ii 3/2 of flyD1c o6y Al/OP 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** Ill FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 »»> DESIGNATE::. INDEPENDENT .:STREAM FOR CONFLUENCE « «< » »> AND .COMPUTE, VARIOUS:.CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 3 TIME OF CONCENTRATION(MINUTES) = 11.51 RAINFALL INTENSITY (INCH. /HOUR) = 3.61 EFFECTIVE STREAM AREA(ACRES) = 5.12 TOTAL STREAM AREA(ACRES) = 5.12 [JI PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.39 CONFLUENCE INFORMATION: CI STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 76.89 34.90 1.855 .13 36.29 2 3.39 11.51 3.609 .08 5.12 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO Li CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE Al NUMBER Q(CFS) AREA(ACRES) 1 78.60 41.41 2 54.51 17.09 LI COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 78.60 TIME(MINUTES) = 34.897 i=: 9 1 ' EFFECTIVE AREA(ACRES) = 41.41 TOTAL AREA(ACRES) = 48.15 11 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 48.15 EFFECTIVE AREA(ACRES) = 41.41 1 PEAK FLOW RATE(CFS) = 78.60 END OF RATIONAL METHOD ANALYSIS ji 1 1 ql 01 Ul gl 01 i 1 II i AB II 10 1 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Al RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (References 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) 1 Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: I HALL & FOREMAN . FILE NAME: FECCB10.100 GL fu 1( .8, G l O 71 xx TIME /DATE OF STUDY: 9:54 7/14/1990 =__________ ==xxx=== = = = ===x =x =sax = = == USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: I xx == - = =xx xss =xx xxxxsxxxxxs = = = = =s - *TIME -OF- CONCENTRATION MODEL * -- 1 USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* . • J 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = . .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: • JIM STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION. CURVE = .6000 II . „ . **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ! FLOW PROCESS FROM NODE 116.10 TO NODE 117.01 IS CODE =, 2 ' 1 , ,,, » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< = = '. DEVELOPMENT IS COMMERCIAL �' TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 • INITIAL SUBAREA FLOW- LENGTH = 1000.00 'Ell UPSTREAM ELEVATION = 1130.00 DOWNSTREAM ELEVATION = 1087.90 ELEVATION DIFFERENCE = 42.10 I, TC = .304 *[( 1000.00 ** 3.00)/( 42.10)] ** .20 = 9.079 ',. 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.161 SOIL CLASSIFICATION IS "B" ' COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 9.93 TOTAL AREA(ACRES) = 2.70 PEAK FLOW RATE(CFS) = 9.93 • FLOW PROCESS FROM NODE 117.01 TO NODE 306.01 IS CODE x 6 lill » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< 1 Al 1 L I . UPSTREAM ELEVATION s 1087.90 DOWNSTREAM ELEVATION = 1063.37 STREET LENGTH(FEET) = 2650.00 CURB HEIGTH(INCHES) = 8. ' STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 37.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 16.98 STREETFLOW MODEL RESULTS: 1: STREET FLOWDEPTH(FEET) = .60 HALFSTREET FLOODWIDTH(FEET) = 21.95 AVERAGE FLOW VELOCITY(FEET /SEC.) • 3.39 PRODUCT OF DEPTH &VELOCITY = 2.03 STREETFLOW TRAVELTIME(MIN) = 13.02 TC(MIN) = 22.10 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.440 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 6.40 SUBAREA RUNOFF(CFS) = 13.62 EFFECTIVE AREA(ACRES) = 9.10 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 9.10 PEAK FLOW RATE(CFS) = 19.37 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .62 HALFSTREET FLOODWIDTH(FEET) = 23.10 FLOW VELOCITY(FEET /SEC.) = 3.51 DEPTH *VELOCITY = 2.17 t ***************************************** *,k * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 306.01 TO NODE 311.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< ====- -== = =__ = == UPSTREAM ELEVATION = 1063.37 DOWNSTREAM ELEVATION = 1047.60 STREET LENGTH(FEET) = 2000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 39.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 37.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 23.23 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .67 HALFSTREET FLOODWIDTH(FEET) = 25.41 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.49 PRODUCT OF DEPTH &VELOCITY = 2.33 STREETFLOW TRAVELTIME(MIN) = 9.54 TC(MIN) = 31.64 ' 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.967 SOIL CLASSIFICATION IS "B" !` 2 1 1 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0750 SUBAREA AREA(ACRES) = 4.50 SUBAREA RUNOFF(CFS) = 7.66 1 EFFECTIVE AREA(ACRES) = 13.60 AVERAGED Fm(INCH/HR) _ .075 TOTAL AREA(ACRES) = 13.60 PEAK FLOW RATE(CFS) = 23.16 II END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .67 HALFSTREET FLOODWIDTH(FEET) = 25.41 FLOW VELOCITY(FEET /SEC.) = 3.48 DEPTH *VELOCITY = 2.32 ********* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * ** * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 8 li » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< = =s = == = = == = = == = = === ==a 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.967 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) _ 1.50 SUBAREA RUNOFF(CFS) = 2.55 EFFECTIVE AREA(ACRES) = 15.10 AVERAGED Fm(INCH/HR) _ .075 TOTAL AREA(ACRES) = 15.10 PEAK FLOW RATE(CFS) = 25.72 TC(MIN) = 31.64 j as =s == sss === == =_= = = =s= = = === =a= = == END OF STUDY SUMMARY' TOTAL AREA(ACRES) = 15.10 , 3 , EFFECTIVE AREA(ACRES) = 15.10 3 :'f PEAKFLOW RATE(CFS) = 25.72 "F fi = = == END OF RATIONAL METHOD ANALYSIS i • Q1•• F ClAs 4# f # T /0 A.5,72,- 1 # 16. 83 t7 9 * =/., a hige ,cee,rfico 23/ c-s. 0 1 4 . 15 I 1 a ; fog .c.),,6,01 iv= 5; Z —14 77-ar /'. , • 0 1.. - al S- /0. 5- (/ /c) s 3 ht-c, f - r, a , D� .25. 7 Z 1 . 3 - 1 i _1 i 1 C.B. ,- " 35 # /D/t'oloGY H r#t- r cal.._ C z -) Pecvt1 lAve" �� /if AV1Z4'sec . a/ 5 4A/r/9 .9A/4 nn/P e",' ,/,t re 8LL/L. , ' 1 KiPv/Ii G o To ce:/v7 •e. L//P. o// i , • ir /440Ze7 70 C / 2 S/i/S - .. .4 t/P iVe 3a, . i ' B//T No ,P / - 40,=f A EifST of e .7/ ,eE l ,BLi/D Na eT# c .5CcT/s/ wia SE ArSte i i 151 Low ro C. $. *. .3s' o ce4 ,qT ei9ST op e:$->,/,e6" CewrFe 4Lbi l To 't,..- Gtzr) = 3 4. 50 . T/C/ /S If'Ei¢ ,,s- To ZP,W/ To C.8. # 36 . Rprott /l een 4T e isr ,AvesT of E/w /v /,tE CEit/ToK ,8 /vD, CoWTZ /BkT //SSG To Ca,„- G = 93. 78 Ac- 1 0...— C 3 g 7/ c .s l= ttJ • • it see" swee #1 /Av cALcvinr /o// , Ca,.. -Q1, 3 a - /..2 a= ( ) = 7. . ---r . 8 0 t . . a ) , 3 7 , cf.' J. (Q,.,- Q /¢. Z c.1-5. F4= 0.098 /A e. t..- . .,3 1 FT re = 15;75- "iy1, a At/. 2-8 _ 7.83 = LII 1 ( - -ytx. a,..- aZZ) s 38.7/- /1.21 A !/Se 71/ SE /AlfaveleMWDA/S Tai' C.B. #- . 3 .- o/Ly 1 7" oxs-) F•a.A° Are a 1.0 = /2./3 c-/s. c . -r z- #9 1e- App. la 1 3.9 AC. - 1 v- 3. • < • 1 fr'..• cr. 75 oe Fk o. 75 - //yds:- Aftig sa 0.2./3 -- 5'9) 5"-f 0.0 hg 3 77-/- (a oo a1 ) /*°< /i/eeW 4 A. 1 .5. 6 / 11 3 a,.. 6.4-9 c_.4.C. a=7 ,577454 /2- 0 5 J'I/J = 2.1 c. 3 F .-.- Tc - 422_0 4.. 0. Ac. a a- ( A -- 5, 135 :sr o..cs — ~ l • ** ************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** - RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 1P Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * *I * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** ' * HYDROLOGY FOR C.B. #$35 " * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** R FILE NAME: FECCB$35.100 TIME/DATE OF STUDY: 15: 8 7/18/1990 - USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*- - i i USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = :i *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: ill STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** :1 FLOW PROCESS FROM NODE 432.00 TO NODE 229.01 IS CODE = 2 » » > RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< ! [11 DEVELOPMENT IS COMMERCIAL i TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 (: INITIAL SUBAREA FLOW - LENGTH = 550.00 j, UPSTREAM ELEVATION = 1063.43 i DOWNSTREAM ELEVATION = 1059.38 ELEVATION DIFFERENCE = 4.05 AI . . . . TC = 304 *[( 55000 ** 300)/( 405)] ** .20 = 10.130 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.896 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.13 TOTAL AREA(ACRES) = .91 PEAK FLOW RATE(CFS) = 3.13 i I 1 I N II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 430.01 IS CODE = 6 II » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1059.38 DOWNSTREAM ELEVATION = 1056.50 II STREET LENGTH(FEET) = 450.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.28 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.51 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.13 PRODUCT OF DEPTH &VELOCITY = .91 STREETFLOW TRAVELTIME(MIN) = 3.53 TC(MIN) = 13.66 Ell 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.257 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 Ot SUBAREA AREA(ACRES) = .80 SUBAREA RUNOFF(CFS) = 2.29 EFFECTIVE AREA(ACRES) = 1.71 AVERAGED Fm(INCH /HR) = .075 [11 TOTAL AREA(ACRES) = 1.71 PEAK FLOW RATE(CFS) = 4.90 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 14.34 FLOW VELOCITY(FEET /SEC.) = 2.18 DEPTH *VELOCITY = .97 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** L11 FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.66 RAINFALL INTENSITY (INCH. /HOUR) = 3.26 II EFFECTIVE STREAM AREA(ACRES) = 1.71 TOTAL STREAM AREA(ACRES) = 1.71 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.90 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 7 1 1 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< 1 L11 USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 25.15 RAIN INTENSITY(INCH /HOUR) = 2.26 .P ATA- prpm I 2 ( ZY l EFFECTIVE AREA(ACRES) = 13.45 TOTAL AREA(ACRES) = 13.45 PEAK FLOW RATE(CFS) = 24.47 AVERAGED LOSS RATE, Fm(IN /HR) = .098 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .24(INCHES /HOUR) *********************************************************************** FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< »» >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< 11 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 25.15 RAINFALL INTENSITY (INCH. /HOUR) = 2.26 11 EFFECTIVE STREAM AREA(ACRES) = 13.45 TOTAL STREAM AREA(ACRES) = 13.45 PEAK FLOW RATE(CFS) AT CONFLUENCE = 24.47 1 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 4.90 13.66 3.257 .08 1.71 2 24.47 25.15 2.258 .10 13.45 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 • 9.01 2 27.83 15.16 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: I/ PEAK FLOW RATE(CFS) = 27.83 TIME(MINUTES) = 25.150 EFFECTIVE AREA(ACRES) = 15.16 TOTAL AREA(ACRES) = 15.16 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 6 » » > COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1056.50 DOWNSTREAM ELEVATION = 1050.00 STREET LENGTH(FEET) = 1400.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 11 3 11 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 29.98 * * *STREETFLOW SPLITS OVER STREET - CROWN * ** FULL DEPTH(FEET) = .72 FLOODWIDTH(FEET) = 28.00 FULL HALF- STREET VELOCITY(FEET /SEC.) = 2.89 SPLIT DEPTH(FEET) = .51 SPLIT FLOODWIDTH(FEET) = 17.65 SPLIT VELOCITY(FEET /SEC.) = 2.06 STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS: ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL_FLOW ALONG THE'PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .72 HALFSTREET FLOODWIDTH(FEET) = 28.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.89 PRODUCT OF DEPTH &VELOCITY = 2.07 STREETFLOW TRAVELTIME(MIN) = 8.08 TC(MIN) = 33.23 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.910 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 4.29 11 EFFECTIVE AREA(ACRES) = 17.76 AVERAGED Fm(INCH /HR) = .092 TOTAL AREA(ACRES) = 17.76 PEAK FLOW RATE(CFS) = 29.05 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .72 HALFSTREET FLOODWIDTH(FEET) = 28.00 FLOW VELOCITY(FEET /SEC.) = 2.89 DEPTH *VELOCITY = 2.07 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 430.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 33.23 RAINFALL INTENSITY (INCH. /HOUR) = 1.91 EFFECTIVE STREAM AREA(ACRES) = 17.76 I/ TOTAL STREAM AREA(ACRES) = 17.76 PEAK FLOW RATE(CFS) AT CONFLUENCE = 29.05 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.00 TO NODE 434.01 IS CODE = 7 I/ » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « USER - SPECIFIED VALUES ARE AS FOLLOWS: II TC(MIN) = 11.94 RAIN INTENSITY(INCH /HOUR) = 3.53 EFFECTIVE AREA(ACRES) = .82 TOTAL AREA(ACRES) = .82 PEAK FLOW RATE(CFS) = 2.54 AVERAGED LOSS RATE, Fm(IN /HR) = .075 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .09(INCHES /HOUR) II 4 . , , II ' 11 , II III *********************************************************************** FLOW PROCESS FROM NODE 434.01 TO NODE 434.01 IS CODE = 1 II >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< _ >»»AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: , 1115 TIME OF CONCENTRATION(MINUTES) = 11.94 RAINFALL INTENSITY (INCH./HOUR) = 3.53 - 11 joy EFFECTIVE STREAM AREA(ACRES) = .82 TOTAL STREAM AREA(ACRES) = .82 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.54 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 11 1 29.05 33.23 1.910 .09 17.76 2 2.54 11.94 3.530 .08 .82 11 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: 711 STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) I 30.40 18.58 :11 2 22.28 7.20 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 30.40 TIME(MINUTES) = 33.233 1 -11 EFFECTIVE AREA(ACRES) = 18.58 Jg TOTAL AREA(ACRES) = 18.58 ,L11 ,mpow FLOW PROCESS FROM NODE 434.01 TO NODE 433.02 IS CODE = 6 i , ril ILII >»»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< i UPSTREAM ELEVATION = 1050.00 DOWNSTREAM ELEVATION = 1048.50 ' le Ji STREET LENGTH(FEET) = 350.00 CURB HEIGTH(INCHES) = 8. 1 STREET HALFWIDTH(FEET) = 28.00 1 1 - 11 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 A SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 ** TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 30.84 ' 11 ***STREETFLOW SPLITS OVER STREET-CROWN*** FULL DEPTH(FEET) = .72 FLOODWIDTH(FEET) = 28.00 FULL HALF-STREET VELOCITY(FEET/SEC.) = 2.77 II jq A 11 $ SPLIT DEPTH(FEET) = .54 SPLIT FLOODWIDTH(FEET) = 19.30 SPLIT VELOCITY(FEET /SEC.) = 2.19 11 STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION 1/ THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .72 HALFSTREET FLOODWIDTH(FEET) = 28.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.77 PRODUCT OF DEPTH &VELOCITY = 1.99 STREETFLOW TRAVELTIME(MIN) = 2.10 TC(MIN) = 35.34 0/ 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.841 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .55 SUBAREA RUNOFF(CFS) = .87 EFFECTIVE AREA(ACRES) = 19.13 01 AVERAGED Fm(INCH /HR) = .091 TOTAL AREA(ACRES) = 19.13 PEAK FLOW RATE(CFS) = 30.40 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .72 HALFSTREET FLOODWIDTH(FEET) = 28.00 01 FLOW VELOCITY(FEET /SEC.) = 2.77 DEPTH *VELOCITY = 1.99 a** ** aft* * * *>A ***************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< 01 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 35.34 01 RAINFALL INTENSITY (INCH. /HOUR) = 1.84 EFFECTIVE STREAM AREA(ACRES) = 19.13 TOTAL STREAM AREA(ACRES) = 19.13 01 PEAK FLOW RATE(CFS) AT CONFLUENCE = 30.40 ************* * ** * * * * * * * * * * * * * * ** * ** * * ** * * * ** *alt * * * * * * * * * * * * * * * * * * * * * * * ** l i FLOW PROCESS FROM NODE 434.20 TO NODE 435.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 450.00 UPSTREAM ELEVATION = 1056.00 DOWNSTREAM ELEVATION = 1051.00 EI ELEVATION DIFFERENCE = 5.00 ** .20 = 8.610 TC = .304 *[( 450.00 ** 3.00)/( 5.00)]** YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.295 1 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 2.66 1 6 1 TOTAL AREA(ACRES) = .70 PEAK FLOW RATE(CFS) = 2.66 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.01 TO NODE 433.02 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1051.00 DOWNSTREAM ELEVATION = 1048.50 STREET LENGTH(FEET) = 275.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.49 STREETFLOW MODEL RESULTS: gi STREET FLOWDEPTH(FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 11.02 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.49 411 PRODUCT OF DEPTH &VELOCITY = .94 ,ug STREETFLOWTRAVELTIME(MIN) _.. 1.84 TC(MIN) = 10.45 t >;;100 :, YEAR`-,RAINFALL INTENSITY(INCH /HOUR) = 3.823 111 SOIL: CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = " .50 SUBAREA RUNOFF(CFS) = 1.69 EFFECTIVE AREA(ACRES) = 1.20 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 4.05 END OF SUBAREA STREETFLOW HYDRAULICS: LA DEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 11.85 FLOW VELOCITY(FEET /SEC.) = 2.54 DEPTH *VELOCITY = 1.00 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 10.45 RAINFALL INTENSITY (INCH. /HOUR) = 3.82 EFFECTIVE STREAM AREA(ACRES) = 1.20 111 TOTAL STREAM AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.05 LB **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.10 TO NODE 433.02 IS CODE = 7 111 » SPECIFIED HYDROLOGY INFORMATION AT NODE««< 7 1 II USER- SPECIFIED VALUES ARE AS FOLLOWS: II TC(MIN) = 12.05 RAIN INTENSITY(INCH /HOUR) = 3.51 EFFECTIVE AREA(ACRES) = .44 TOTAL AREA(ACRES) = .44 PEAK FLOW RATE(CFS) = 1.35 AVERAGED LOSS RATE, Fm(IN /HR) = .075 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .10(INCHES /HOUR) I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.02 TO NODE 433.02 IS CODE = 1 31 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< = UP CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.05 RAINFALL INTENSITY (INCH. /HOUR) = 3.51 11 EFFECTIVE STREAM AREA(ACRES) = .44 TOTAL STREAM AREA(ACRES) = .44 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.35 I CONFLUENCE INFORMATION: • STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 30.40 35.34 1.841 .09 19.13 2 4.05 10.45 3.823 .08 1.20 3 1.35 12.05 3.511 .08 .44 3 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. or ui SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 33.00 20.77 2 24.51 7.24 3 25.32 8.16 a I COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 33.00 TIME(MINUTES) = 35.336 EFFECTIVE AREA(ACRES) = 20.77 II TOTAL AREA(ACRES) = 20.77 END OF STUDY SUMMARY: I TOTAL AREA(ACRES) = 20.77 EFFECTIVE AREA(ACRES) = 20.77 PEAK FLOW RATE(CFS) = 33.00 11 END OF RATIONAL METHOD ANALYSIS 61 al . /h 'rct /' /e✓ by e. 1. # • 3l i # 33 1 f2 ¢.97 --3.34' /o. 93c ,f' l eB 536 wilt rcce.v. = 33. /o. 93 az.0 c. -{. s. 11 8 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN 11 * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * 100 -YR HYDROLOGY TO CALCULATE (Q100 -Q25) * FOR AREAS OF 434,435.1,431,433,435 010-0 * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECB3536.100 TIME/DATE OF STUDY: 14: 5 7/18/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ===== -- *TIME-OF- CONCENTRATION MODEL*-- Y USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE .INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.00 TO NODE 434.01 IS CODE = 2 » » > RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW- LENGTH = 720.00 UPSTREAM ELEVATION = 1054.00 DOWNSTREAM ELEVATION = 1050.00 ELEVATION DIFFERENCE = 4.00 TC = .304 *[( 720.00 ** 3.00)/( 4.00)] ** .20 = 11.936 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.531 SOIL CLASSIFICATION IS "B" 11 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 12.13 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 12.13 1 1 is Y 1 1 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 1 FLOW PROCESS FROM NODE 435.10 TO NODE 433.02 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< ' DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 1 INITIAL SUBAREA FLOW- LENGTH = 700.00 • UPSTREAM ELEVATION = 1052.00 ,L� DOWNSTREAM ELEVATION = 1048.50 ELEVATION DIFFERENCE = 3.50.- ** .20 = 12.054 TC = .304 *[( 700.00 ** 3.00)/( 3.50)]** YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.510 iiil SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 ij SUBAREA RUNOFF(CFS) = 6.49 TOTAL AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) = 6.49 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 Ell FLOW PROCESS FROM NODE 431.00 TO NODE 432.11 IS CODE = 2 1 • . »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< DEVELOPMENT IS COMMERCIAL . ::TC!K * [ (LENGTH ** 3.00) /(ELEVATION CHANGE) ] ** .20 i -.; : - ;.: INITIAL SUBAREA . FLOW- LENGTH = 700.00 i . ,,,- UPSTREAM ELEVATION = 1055.00 ' - DOWNSTREAM ELEVATION = 1052.00 rt .., ELEVATION DIFFERENCE = 3.00 J TC = .304 *[( 700.00 ** 3.00)/( 3.00)] ** .20 = 12.431 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.446 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 !3 SUBAREA RUNOFF(CFS) = 16.69 TOTAL AREA(ACRES) = 5.50 PEAK FLOW RATE(CFS) = 16.69 i= *****************,*********************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.00 TO NODE 433.01 IS CODE = 2 I 1_. » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL l Iry TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 800.00 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1049.00 ELEVATION DIFFERENCE = 6.00 ■ TC = .304 *[( 800.00 ** 3.00)/( 6.00)) ** .20 = 11.725 LI 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.569 SOIL CLASSIFICATION IS "B" ( 1 2 ' 6 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 18.87 TOTAL AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) = 18.87 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.00 TO NODE 433.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1049.00 ELEVATION DIFFERENCE = 6.00 TC = .304 *[( 700.00 ** 3.00)/( 6.00)) ** .20 = 10.822 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.745 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 19.82 TOTAL AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) = 19.82 -- ---- = = =_ === === --- -M =._. __ - - - --- ' END OF '. STUDY SUMMARY: : j W`. TOTALAREA ACRES = 6.00 11 ;,; EFFECTIVE (ACRES) : = 6.00 PEAR:: FLOW -RATE (CFS) = 19.82 END OF RATIONAL METHOD ANALYSIS 1; 1 3 111 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 11 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * 25 -YR HYDROLOGY TO CALCULATE (Q100 -Q25) * FOR AREAS OF 434,435.1,431,433,435 Q ,c 11 J * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECB3536.025 TIME /DATE OF STUDY: 14:13 7/18/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF -CONCENTRATION MODEL* -- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* t 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) _ .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.00 TO NODE 434.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS« « < 11 DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 720.00 UPSTREAM ELEVATION = 1054.00 DOWNSTREAM ELEVATION = 1050.00 ELEVATION DIFFERENCE = 4.00 TC = .304 *[( 720.00 ** 3.00)/( 4.00)] ** .20 = 11.936 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.809 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 9.59 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 9.59 1 1 H **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** '� FLOW PROCESS FROM NODE 435.10 TO NODE 433.02 IS CODE = 2 a _ II » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL II TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 � UPSTREAM ELEVATION = 1052.00 DOWNSTREAM ELEVATION = 1048.50 ' ELEVATION DIFFERENCE = 3.50 TC = .304 *[( 700.00 ** 3.00)/( 3.50)] ** .20 = 12.054 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.792 SOIL CLASSIFICATION IS "B" i COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 '311 SUBAREA RUNOFF(CFS) = 5.14 TOTAL AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) = 5.14 y y y y y y y y y y y y y y y y y y y y y * * * 1 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * i FLOW PROCESS FROM NODE 4 431.00 TO NODE 432.11 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< 1 DEVELOPMENT . IS COMMERCIAL TC_ K *[ (LENGTH * *:✓ 3.00) / CHANGE) ] ** .20 1 INITIAL. SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1055.00 , I DOWNSTREAM ELEVATION = 1052.00 ELEVATION DIFFERENCE = 3.00 s TC = .304 *[( 700.00 ** 3.00)/( 3.00)] ** .20 = 12.431 711. 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.741 Al SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) = .0750 SUBAREA RUNOFF(CFS) = 13.20 TOTAL AREA(ACRES) = 5.50 PEAK FLOW RATE(CFS) = 13.20 i Al **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.00 TO NODE 433.01 IS CODE = 2 1 i f » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL AI TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 800.00 UPSTREAM ELEVATION = 1055.00 A DOWNSTREAM ELEVATION = 1049.00 j' ELEVATION DIFFERENCE = 6.00 TC = .304 *[( 800.00 ** 3.00)/( 6.00)] ** .20 = 11.725 ,; 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.839 !; 11 SOIL CLASSIFICATION IS "B" d 1 2 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 14.92 TOTAL AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) = 14.92 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.00 TO NODE 433.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS« « < DEVELOPMENT IS COMMERCIAL i . TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 11 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1049.00 ® ELEVATION DIFFERENCE = 6.00 TC = .304 *[( 700.00 ** 3.00)/( 6.00)] ** .20 = 10.822 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.979 gl SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 15.68 7 TOTAL AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) = 1 15.68 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 6.00 gl EFFECTIVE AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) 15.68 END OF RATIONAL METHOD ANALYSIS q i 11 11 1 i 11 11 11 3 1 e.,8. v W/O/ea y A S S / J � l � r ! L T # f Cap - cki.r) fieoM /N6 �8 1 ro Go o c. 3 ( fr2'// eoi✓se•vi we �J poor! she .7p-1 x y cf `o l • y -eePe -7' 3 (CAIcui#9T/Ift' PO Cat.. _ 6t, 0 4c. 3 C a.o )3 8.7, 4 .7 ( 6 3 j� f 4= a o //ci 9� /,r 3 T c 3 3 1 1 1 77/5 (a,..- 02. s ) wo e se, I/ refil. Ls c , •6 pv. 3 S ,e'E,¢ 3 1 a...= lam. 69 c.-7S. Q2 s' '3.20 e-7 1 T& /2. . ¢3 /W# 7� � /.2.13 Min fiy 0_07 -r /1 4r a. P7 = /lo. l09 _ /3.2 0 s 3.19 c. 4 a Ca p- -�,,�� �•- - r o w Ar ' O. 7 -s - // /fir /ZeE, ¢33 1 a t = /8.87 TG = /473 72. = // I I= 10.0 fry 0.07 s r 1z73 Q s /8.87- /An 3j,5 e-7 1 (a).. -- Q-) 4 0.• Gtr.. 1 gym= 0.075 1 p4e 1 A.- ■ /)82 45768 /0. g2- /0. c g 2- hill At= 6- O - 3111 roil= 0.07 .3 z /9. ez- 1./$e e ./s. i i ) ( Q ur - ) Fm :3 a. 41 7 5 /i2A _JO 1 LI t — * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE II (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: 11 HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * HYDROLOGY FOR CATCH BASIN #136 * A II * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** A FILE NAME: FECCB$36.100 TIME /DATE OF STUDY: 17:12 7/18/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: 11 . -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 10 *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: li STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 in **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.20 TO NODE 227.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< II DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 UPSTREAM ELEVATION = 1065.00 DOWNSTREAM ELEVATION = 1061.00 II ELEVATION DIFFERENCE = 4.00 TC = .304 *[( 500.00 ** 3.00)/( 4.00)] ** .20 = 9.591 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 4.026 SOIL CLASSIFICATION IS "B" I L COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 2.95 TOTAL AREA(ACRES) = .83 PEAK FLOW RATE(CFS) = 2.95 I 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 430.01 IS CODE = 6 » »>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1061.00 DOWNSTREAM ELEVATION = 1056.50 STREET LENGTH(FEET) = 520.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.44 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .41 HALFSTREET FLOODWIDTH(FEET) = 12.68 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.47 PRODUCT OF DEPTH &VELOCITY = 1.02 STREETFLOW TRAVELTIME(MIN) = 3.51 TC(MIN) = 13.10 • 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.339 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 2.94 EFFECTIVE AREA(ACRES) = 1.83 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 1.83 PEAK FLOW RATE(CFS) = 5.38 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.51 FLOW VELOCITY(FEET /SEC.) = 2.67 DEPTH *VELOCITY = 1.14 ************ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.01 TO NODE 432.11 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1056.50 DOWNSTREAM ELEVATION = 1052.00 STREET LENGTH(FEET) = 940.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.16 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .51 HALFSTREET FLOODWIDTH(FEET) = 17.65 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.17 2 11 II PRObUCT OF DEPTH &VELOCITY = 1.11 STREETFLOW TRAVELTIME(MIN) = 7.23 TC(MIN) = 20.33 ( 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.565 I.. SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 1 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 3.59 EFFECTIVE AREA(ACRES) = 3.43 AVERAGED Fm(INCH/HR) = .075 1 TOTAL AREA(ACRES) = 3.43 PEAK FLOW RATE(CFS) = 7.69 END OF SUBAREA STREETFLOW HYDRAULICS: OP DEPTH(FEET) = .51 HALFSTREET FLOODWIDTH(FEET) = 17.65 FLOW VELOCITY(FEET /SEC.) = 2.33 DEPTH *VELOCITY = 1.19 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 432.11 TO NODE 432.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< , Ell CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 20.33 RAINFALL INTENSITY (INCH. /HOUR) = 2.57 01 EFFECTIVE STREAM AREA(ACRES) = 3.43 TOTAL STREAM AREA(ACRES) = 3.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 7.69 gl **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** HI FLOW PROCESS FROM NODE 431.00 TO NODE 432.11 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< ----- ® USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 25.15 RAIN INTENSITY(INCH /HOUR) = 2.26 EFFECTIVE AREA(ACRES) = 21.28 HE TOTAL AREA(ACRES) = 21.28 PEAK FLOW RATE(CFS) = 38.71 AVERAGED LOSS RATE, Fm(IN /HR) = .098 ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .24(INCHES /HOUR) 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.11 TO NODE 432.11 IS CODE = 1 »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « « < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: ( TIME OF CONCENTRATION(MINUTES) = 25.15 II RAINFALL INTENSITY (INCH. /HOUR) = 2.26 L EFFECTIVE STREAM AREA(ACRES) = 21.28 TOTAL STREAM AREA(ACRES) = 21.28 PEAK FLOW RATE(CFS) AT CONFLUENCE = 38.71 I 3 II 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE ;� NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) I-. 1 7.69 20.33 2.565 .08 3.43 2 38.71 25.15 2.258 .10 21.28 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. qi SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 01 1 43.43 20.63 2 45.45 24.71 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 01 PEAK FLOW RATE(CFS) = 45.45 TIME(MINUTES) = 25.150 EFFECTIVE AREA(ACRES) = 24.71 TOTAL AREA(ACRES) = 24.71 gl **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.11 TO NODE 433.01 IS CODE = 6 01 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA ««< 01 UPSTREAM, ELEVATION .= 1052.00 DOWNSTREAM ELEVATION = 1049.00 STREET LENGTH(FEET) = 820.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 01 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.50 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 01 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 Ii * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 46.76 ** *STREET FLOWING FULL * ** STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. DI THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. na III STREET FLOWDEPTH(FEET) = .75 HALFSTREET FLOODWIDTH(FEET) = 28.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.64 01 PRODUCT OF DEPTH &VELOCITY = 1.97 STREETFLOW TRAVELTIME(MIN) = 5.17 TC(MIN) = 30.32 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.018 H SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.50 SUBAREA RUNOFF(CFS) = 2.62 I EFFECTIVE AREA(ACRES) = 26.21 AVERAGED Fm(INCH/HR) = .094 11 4 1 TOTAL AREA(ACRES) = 26.21 PEAK FLOW RATE(CFS) = 45.45 END OF SUBAREA STREETFLOW HYDRAULICS: II DEPTH(FEET) = .73 HALFSTREET FLOODWIDTH(FEET) = 28.00 FLOW VELOCITY(FEET /SEC.) = 2.74 DEPTH *VELOCITY = 1.99 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE TIME OF CONCENTRATION(MINUTES) = 30.32 RAINFALL INTENSITY (INCH. /HOUR) = 2.02 p EFFECTIVE STREAM AREA(ACRES) = 26.21 TOTAL STREAM AREA(ACRES) = 26.21 :I PEAK FLOW RATE(CFS) AT CONFLUENCE = 45.45 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 413.00 TO NODE 433.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 11.73 RAIN INTENSITY(INCH /HOUR) = 3.57 5 ' 1 EFFECTIVE AREA(ACRES) = 1.26 TOTAL AREA(ACRES) = 1.26 PEAK FLOW RATE(CFS) = 3.95 AVERAGED LOSS RATE, Fm(IN /HR) = .075 Vi ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .08(INCHES /HOUR) **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 it JII » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « « < ; CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.73 RAINFALL INTENSITY (INCH. /HOUR) = 3.57 EFFECTIVE STREAM AREA(ACRES) = 1.26 TOTAL STREAM AREA(ACRES) = 1.26 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.95 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 435.00 TO NODE 433.01 IS CODE = 7 a »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< II USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.82 RAIN INTENSITY(INCH /HOUR) = 3.75 I EFFECTIVE AREA(ACRES) = 1.25 TOTAL AREA(ACRES) = 1.25 PEAK FLOW RATE(CFS) = 4.14 i 5 II 11 AVERAGED LOSS RATE, Fm(IN /HR) = .075 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 1: » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: F TIME OF CONCENTRATION(MINUTES) = 10.82 RAINFALL INTENSITY (INCH. /HOUR) = 3.75 �� EFFECTIVE STREAM AREA(ACRES) = . 1.25 TOTAL STREAM AREA(ACRES) = 1.25 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.14 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.20 TO NODE 433.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< I DEVELOPMENT IS COMMERCIAL II TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 750.00 UPSTREAM ELEVATION = 1056.00 DOWNSTREAM ELEVATION = 1049.00 ELEVATION: DIFFERENCE = 7.00 TC = .304 *[( 750.00 ** 3.00)/( 7.00)] ** .20 = 10.937 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.721 11 SOIL CLASSIFICATION IS "B" L�l� COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 3.94 li TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 3.94 1/ **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< 11 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: 11 TIME OF CONCENTRATION(MINUTES) = 10.94 RAINFALL INTENSITY (INCH. /HOUR) = 3.72 EFFECTIVE STREAM AREA(ACRES) = 1.20 TOTAL STREAM AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.94 CONFLUENCE INFORMATION: 11 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) II 1 45.45 30.32 2.018 .09 26.21 2 3.95 11.73 3.568 .08 1.26 II 6 i - II 3 4.14 10.82 3.745 .08 1.25 4 3.94 10.94 3.721 .08 1.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: II STREAM CONFLUENCE EFFECTIVE III NUMBER Q(CFS) AREA(ACRES) 1 51.94 29.92 2 43.40 13.85 3 42.66 12.95 4 42.79 13.08 II COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 51.94 TIME(MINUTES) = 30.323 EFFECTIVE AREA(ACRES) = 29.92 di TOTAL AREA(ACRES) = 29.92 -� s END OF STUDY SUMMARY: ill TOTAL AREA(ACRES) = 29.92 EFFECTIVE AREA(ACRES) = 29.92 PEAK FLOW RATE(CFS) = ' 51.94 11 END OF RATIONAL METHOD ANALYSIS a 2s Mferee��ai A4y e. 6. 32 1 3¢ 3 3 f 3.3d sg. �3 II 0. 8. X36 w /Ztre _ �r� � 5/.� ¢ 8.23 .A3,7/ c-/5. 11 7 - 4 , ril L Q t o gc , to e• 4' . - 35 as 0.4. #3G 1 --z--- 2 2. o 7+ ¢3. 7/ -- 24• f7 /. 3/ e• 's. 11 Doote.. � '7 7' hce for e # 35 and 111.30 � o for C.B. # 3 6 ii .: 7 1 11 - - "De' Za 6 I pole T/5 Aliot//t/ P/PE, , ---.. , I ritt a F C etk 11_4 avev 06_3_37_ an d # 3 a i alcu r --e • -A,4---8 mj I - 0- 35 a n ' .7., -- 6E-Frorit---eilic-4-405; Z. =-.-- A. 21 • C 4 1 ---- 1 1 1 ' 4----0 prolvi h . j ] - . __f . . , -04-L-Afain-4..-, 414-3 bir •2: 27-÷ 1 5: 4. 8 -=. 59.Z.,- -- C:7 (:3 ' .:. [I It -- ---- ------------------------ ---- - - - - rt ----- i i 1 3 , '11 i --1 I Lit II IL _ ___. :1,11 -- - ---- ----- II I ,-- - -- 11 *'*************'************'***************** * * * * * *'* * * * * * *'* * * * *'* * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN 11 * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * C.B. #42 * Q25 YR * J.N. 4013 *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: CB42.DAT C..8. #- f ? JW TIME/DATE OF STUDY: 12:54 7/20/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL * -- -- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 rr SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** IP FLOW PROCESS FROM NODE 1.00 TO NODE 2.00 IS CODE = 2 » » > RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 400.00 11 UPSTREAM ELEVATION = 1056.00 DOWNSTREAM ELEVATION = 1049.48 ELEVATION DIFFERENCE = 6.52 TC = .304 *[( 400.00 ** 3.00)/( 6.52)] ** .20 = 7.608 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.680 n SOIL CLASSIFICATION IS "B" B COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 SUBAREA RUNOFF(CFS) = 2.27 TOTAL AREA(ACRES) = .70 PEAK FLOW RATE(CFS) = 2.27 END OF STUDY SUMMARY: 1 11 , * ! , I II TOTAL AREA(ACRES) = .70 0,8. 1 ( EFFECTIVE AREA(ACRES) = .70 II PEAK FLOW RATE(CFS) = END OF RATIONAL METHOD ANALYSIS ‘. 1 1 ' HI ! : I . 1 i 1 ' 1 1 i ill 1 1 1 i i I i 1 i I DE:5/6/V b ;v j7 nv/re 56 am/ bAis 2 a a la 8 ‘ , y bge " fr l e. B. yg 7o, mire; e5 7?eiti Jr/Rum 3 ■YEez) 70 Co/oFezahece r/ve STAWAY.5 LI 11 LJ LII I -* t VI Z I I C\ t► N io t:-- f .---„, ,,1K -7/>/ii Y -) w - u 1 ■ i * e N W to r 4 IV k tli "'.° N \ il S'2 v 1 IN ill %; -_ 4 r !h l `ti f '} 9 „„ 3 JCt 5 A C Imo_ 4 1 F 1 II II * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE IF II (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 1 II Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** II * EMPIRE CENTER LINE "C" FROM JURUPA TO LINE "A" * DESIGN Q 100 - YR * BY: J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECJURLC.100 TIME/DATE OF STUDY: 14:41 8/29/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = le II *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: = STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 7 II » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: 1/ f:/ TC(MIN) = 27.96 RAIN INTENSITY(INCH /HOUR) = 2.12 1 EFFECTIVE AREA(ACRES) = 271.40 TOTAL AREA(ACRES) = 291.00 PEAK FLOW RATE(CFS) = 488.36 �" / 11 AVERAGED LOSS RATE, Fm(IN /HR) = .280 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 27.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.12 1 i 1 il II II II EFFECTIVE STREAM AREA(ACRES) = 271.40 TOTAL STREAM AREA(ACRES) = 291.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 488.36 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 7 11 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< ___ il USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 21.06 RAIN INTENSITY(INCH /HOUR) = 2.51 �F'A EFFECTIVE AREA(ACRES) = 230.93 �� TOTAL AREA(ACRES) = 292.70 PEAK FLOW RATE(CFS) = 403.21 AVERAGED LOSS RATE, Fm(IN /HR) = .100 /•; ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM I �` POSSIBLE VALUE OF .57(INCHES /HOUR) AB ____i **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< 3 » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « « < 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 21.06 RAINFALL INTENSITY (INCH. /HOUR) = 2.51 EFFECTIVE STREAM AREA(ACRES) = 230.93 3 TOTAL STREAM AREA(ACRES) = 292.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 403.21 CONFLUENCE INFORMATION: 11 STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 488.36 i 27.96 2.119 .28 271.40 2 403.21 21.06 2.511 .10 230.93 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) II 1 825.91 502.33 2 849.61 435.35 COMPUTED CONFLUENCE ESTIMATES -ARE AS FOLLOWS: II PEAK FLOW RATE(CFS) = 049.61) TIME(MINUTES) = 21.060 EFFECTIVE AREA(ACRES) = 435.35 TOTAL AREA(ACRES) = 583.70 II * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 11 2 II r 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< li CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.06 RAINFALL INTENSITY (INCH. /HOUR) = 2.51 li EFFECTIVE STREAM AREA(ACRES) = 435.35 TOTAL STREAM AREA(ACRES) = 583.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 849.61 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: -- TC(MIN) = 34.90 RAIN INTENSITY(INCH /HOUR) = 1.85 '11"f' /11/ EFFECTIVE AREA(ACRES) = 41.41 : : �' TOTAL AREA(ACRES) = 48.15 PEAK FLOW RATE(CFS) = 78.60 AVERAGED LOSS RATE, Fm(IN /HR) = .130 ,-j - Ji **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 34.90 RAINFALL INTENSITY (INCH. /HOUR) = 1.85 EFFECTIVE STREAM AREA(ACRES) = 41.41 /1 TOTAL STREAM AREA(ACRES) = 48.15 PEAK FLOW RATE(CFS) AT CONFLUENCE = 78.60 10 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 849.61 21.06 2.511 .18 435.35 2 78.60 34.90 1.855 .13 41.41 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 11 CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE ill NUMBER Q(CFS) AREA(ACRES) 1 915.10 460.34 2 688.50 476.76 J COMPUTED CONFLUENCE ESTI AS FO S) = 21.060 PEAK FLOW RATE(CFS) = 15.10 TIME(MINUTE EFFECTIVE AREA(ACRES) = .34 TOTAL AREA(ACRES) = 631.85 11 3 11 I! 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** li FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< I --------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.06 RAINFALL INTENSITY (INCH. /HOUR) = 2.51 EFFECTIVE STREAM AREA(ACRES) = 460.34 TOTAL STREAM AREA(ACRES) = 631.85 PEAK FLOW RATE(CFS) AT CONFLUENCE = 915.10 1: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 7 1/ » »> USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 31.64 RAIN INTENSITY(INCH /HOUR) = 1.97 wtI il EFFECTIVE AREA(ACRES) = 6.43 6.43 TOTAL AREA(ACRES) = PEAK FLOW RATE(CFS) = 10.95 AVERAGED LOSS RATE, Fm(IN /HR) = .075 C.( i G1( ** *ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .08(INCHES /HOUR) **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 311.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< li » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: I: TIME OF CONCENTRATION(MINUTES) = 31.64 RAINFALL INTENSITY (INCH. /HOUR) = 1.97 EFFECTIVE STREAM AREA(ACRES) = 6.43 TOTAL STREAM AREA(ACRES) = 6.43 ii PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.95 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 11 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 915.10 21.06 2.511 .18 460.34 2 10.95 31.64 1.967 .08 6.43 11 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. II SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) I 4 I II 1 924.49 464.62 2 712.31 466.77 COMPUTED CONFLUENCE ESTI IS ARE AS FOLLOWS: II PEAK FLOW RATE(CFS) = TIME(MINUTES) = 21.060 EFFECTIVE AREA(ACRES) = 464.62 TOTAL AREA(ACRES) = 638.28 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 311.01 TO NODE 312.01 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< Ill DEPTH OF FLOW IN 120.0 INCH PIPE IS 88.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 14.9 UPSTREAM NODE ELEVATION = 1031.00 DOWNSTREAM NODE ELEVATION = 1027.90 A FLOWLENGTH(FEET) = 750.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 120.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 924.49 TRAVEL TIME(MIN.) = .84 TC(MIN.) = 21.90 I **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** rig FLOW PROCESS FROM NODE 312.01 TO NODE 312.01 IS CODE = 1 til » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< »>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< • A --------------- C ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: _____ TIME OF CONCENTRATION(MINUTES) = 21.90 • RAINFALL INTENSITY (INCH. /HOUR) = 2.45 EFFECTIVE STREAM AREA(ACRES) = 464.62 TOTAL STREAM AREA(ACRES) = 638.28 PEAK FLOW RATE(CFS) AT CONFLUENCE = 924.49 1 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) fil 1 924.49 21.90 2.453 .18 464.62 LAI RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 924.49 464.62 i COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 924.49 TIME(MINUTES) = 21.898 [1 EFFECTIVE AREA(ACRES) = 464.62 TOTAL AREA(ACRES) I = 638.28 1 L 5 • Li o 1 1 END OF STUDY SUMMARY: TOTAL AREA (ACRES) = 638.28 EFFECTIVE AREA (ACRES ) = 464.62 PEAK FLOW RATE ( CFS ) = END OF RATIONAL METHOD ANALYSIS " ' , , p 4- A .tr 4. • • • 3 3 (1 1 6 1 EXISTING JURUPA AVE. STORM DRAIN 100 -YR, 1 FULLY - DEVELOPED CONDITION 1 D a 1 if 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER: REVISE PSOMAS HYDROLOGY ALONG JURUPA AVE. TO ACCOUNT 1; * FOR DIR. FLOW FROM SOUTHERN PORTION OF EMPIRE CENTER * BY:J.K. *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1: FILE NAME: FECJUR.100 TIME /DATE OF STUDY: 10: 9 7/12/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME -OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 10 *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* SLOPE OF INTENSITY DURATION CURVE = .6000 USER SPECIFIED 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 600.02 TO NODE 600.02 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< USER- SPECIFIED VALUES ARE AS FOLLOWS: rr°+.# TC(MIN) = 18.86 RAIN INTENSITY(INCH /HOUR) = 2.68 spoYqmrie EFFECTIVE AREA(ACRES) = 69.31 Tt nor , 331 TOTAL AREA(ACRES) = 69.31 PEAR FLOW RATE(CFS) = 148.90 o AVERAGED LOSS RATE, Fm(IN /HR) = .400 ' y.lteG1. is 0 Am 5 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** ® FLOW PROCESS FROM NODE 600.02 TO NODE 600.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 18.86 RAINFALL INTENSITY (INCH. /HOUR) = 2.68 EFFECTIVE STREAM AREA(ACRES) = 69.31 TOTAL STREAM AREA(ACRES) = 69.31 1 11 I PEAR FLOW RATE(CFS) AT CONFLUENCE = 148.90 y **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 600.00 TO NODE 600.02 IS CODE = 2 11 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = R *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 1000.00 1: UPSTREAM ELEVATION = 1061.74 DOWNSTREAM ELEVATION = 1050.51 ELEVATION DIFFERENCE = 11.23 TC = .304 *[( 1000.00 ** 3.00)/( 11.23)] ** .20 = 11.825 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.551 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 1: SUBAREA RUNOFF(CFS) = 7.01 TOTAL AREA(ACRES) = 2.24 PEAK FLOW RATE(CFS) = 7.01 E **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 600.00 TO NODE 600.02 IS CODE = 1 1: » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS - CONFLUENCED STREAM VALUES « «< = CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.82 RAINFALL INTENSITY (INCH. /HOUR) = 3.55 EFFECTIVE STREAM AREA(ACRES) = 2.24 TOTAL STREAM AREA(ACRES) = 2.24 PEAR FLOW RATE(CFS) AT CONFLUENCE = 7.01 1: CONFLUENCE INFORMATION: STREAM PEAR FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) I: 1 148.90 18.86 2.683 .40 69.31 2 7.01 11.82 3.551 .08 2.24 1 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: II STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 154.16 71.55 II 2 135.83 45.70 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 154.16 TIME(MINUTES) = 18.860 II EFFECTIVE AREA(ACRES) = 71.55 TOTAL AREA(ACRES) = 71.55 II 2 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 600.02 TO NODE 601.01 IS CODE = 4 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< » » >USING USER - SPECIFIED PIPESIZE « «< PIPEFLOW VELOCITY(FEET /SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1041.80 DOWNSTREAM NODE ELEVATION = 1038.45 FLOWLENGTH(FEET) = 860.00 MANNINGS N = .013 -1: GIVEN PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 154.16 TRAVEL TIME(MIN.) = 1.48 TC(MIN.) = 20.34 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.00 TO NODE 601.01 IS CODE = 8 1 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.564 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.69 011 EFFECTIVE .AREA(ACRES) = 72.75 AVERAGED Fm(INCH/HR) = .385 TOTAL AREA(ACRES) = 7 PEAR FLOW RATE(CFS) = 154.16 TC(MIN) = 20.34 Ell **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 1 [II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: Ell TIME OF CONCENTRATION(MINUTES) = 20.34 RAINFALL INTENSITY (INCH. /HOUR) = 2.56 EFFECTIVE STREAM AREA(ACRES) = 72.75 TOTAL STREAM AREA(ACRES) = 72.75 ril Al PEAK FLOW RATE(CFS) AT CONFLUENCE = 154.16 LII **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< [II USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.03 RAIN INTENSITY(INCH /HOUR) = 3.07 EFFECTIVE AREA(ACRES) = 96.41 TOTAL AREA(ACRES) = 96.41 PEAK FLOW RATE(CFS) = 215.10 3 r 51/ e gieb-clod { -5 K. 7 /1532 B (s o/H$S II AVERAGED LOSS RATE, Fm(IN /HR) = .596 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 1 II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.03 RAINFALL INTENSITY (INCH. /HOUR) = 3.07 II EFFECTIVE STREAM AREA(ACRES) = 96.41 TOTAL STREAM AREA(ACRES) = 96.41 PEAK FLOW RATE(CFS) AT CONFLUENCE = 215.10 II CONFLUENCE INFORMATION: Q STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES). q I: 1 154.16 20.34 2.564 .38 72.75 l\ N' 2 215.10 15.03 3.075 .60 96.41 e� 0 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 0 CONFLUENCE FORMULA USED FOR 2 STREAMS. k SUMMARY RESULTS: ti tl I STREAM CONFLUENCE EFFECTIVE S' F 1`' NUMBER Q(CFS) AREA(ACRES) 4, I: 1 324.97 169.16 11; 2 355.69 150.17 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: : PEAK FLOW RATE(CFS) = 355.69 TIME(MINUTES) = 15.030 Z EFFECTIVE AREA(ACRES) = 150.17 TOTAL AREA(ACRES) = 169.16 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 605.00 TO NODE 605.01 IS CODE = 2 II » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE II TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 600.00 1 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1053.00 ELEVATION DIFFERENCE = 2.00 TC = .438 *[( 600.00 ** 3.00)/( 2.00)] ** .20 = 17.708 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.787 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .525 11 SUBAREA RUNOFF(CFS) = 6.11 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 6.11 II 4 II 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 605.10 TO NODE 605.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.787 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .49 SUBAREA RUNOFF(CFS) = 1.20 EFFECTIVE AREA(ACRES) = 3.49 1/ AVERAGED Fm(INCH /HR) = .462 TOTAL AREA(ACRES) = 3.49 PEAK FLOW RATE(CFS) = 7.30 TC(MIN) = 17.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 605.01 TO NODE 604.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1053.00 DOWNSTREAM ELEVATION = 1051.50 STREET LENGTH(FEET) = 325.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL)• = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 JO * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.85 S TREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 17.87 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.24 PRODUCT OF DEPTH &VELOCITY = 1.25 ji STREETFLOW TRAVELTIME(MIN) = 2.42 TC(MIN) = 20.12 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.581 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .49 SUBAREA RUNOFF(CFS) = 1.11 EFFECTIVE AREA(ACRES) = 3.98 11 AVERAGED Fm(INCH /HR) = .414 TOTAL AREA(ACRES) = 3.98 PEAR FLOW RATE(CFS) = 7.76 END OF SUBAREA STREETFLOW HYDRAULICS: AR DEPTH(FEET) = .56 HALFSTREET FLOODWIDTH(FEET) = 17.87 FLOW VELOCITY(FEET /SEC.) = 2.21 DEPTH *VELOCITY = 1.23 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 604.01 TO NODE 604.01 IS CODE = 1 5 r ,. » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 20.12 RAINFALL INTENSITY (INCH. /HOUR) = 2.58 EFFECTIVE STREAM AREA(ACRES) = 3.98 TOTAL STREAM AREA(ACRES) = 3.98 PEAR FLOW RATE(CFS) AT CONFLUENCE = 7.76 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 604.00 TO NODE 604.01 IS CODE = 2 » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 2 DWELLINGS /ACRE TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 680.00 UPSTREAM ELEVATION = 1053.00 DOWNSTREAM ELEVATION = 1051.50 ELEVATION DIFFERENCE = 1.50 TC = .438 *[( 680.00 ** 3.00)/( 1.50)] ** .20 = 20.219 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.574 SOIL CLASSIFICATION IS "B" 01 RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .525 SUBAREA RUNOFF(CFS) = 6.27 TOTAL AREA(ACRES) = 3.40 PEAR FLOW RATE(CFS) = 6.27 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 604.00 TO NODE 604.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ««< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 20.22 di RAINFALL INTENSITY (INCH. /HOUR) = 2.57 EFFECTIVE STREAM AREA(ACRES) = 3.40 TOTAL STREAM AREA(ACRES) = 3.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.27 11 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE 11 NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 7.76 20.12 2.581 .41 3.98 2 6.27 20.22 2.574 .52 3.40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. I SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE 6 II NUMBER Q(CFS) AREA(ACRES) II 1 14.02 7.36 2 14.00 7.38 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 14.02 TIME(MINUTES) = 20.124 EFFECTIVE AREA(ACRES) = 7.36 TOTAL AREA(ACRES) = 7.38 I: **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 604.01 TO NODE 601.01 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA ««< UPSTREAM ELEVATION = 1051.50 DOWNSTREAM ELEVATION = 1048.28 STREET LENGTH(FEET) = 450.00 CURB HEIGTH(INCHES) = 8. i STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAR = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 J SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 15.06 01 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .63 HALFSTREET FLOODWIDTH(FEET) = 21.63 AVERAGE FLOW VELOCITY(FEET /SEC.) = 3.02 PRODUCT OF DEPTH &VELOCITY = 1.91 STREETFLOW TRAVELTIME(MIN) = 2.48 TC(MIN) = 22.61 11 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.407 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .99 SUBAREA RUNOFF(CFS) = 2.08 EFFECTIVE AREA(ACRES) = 8.35 AVERAGED Fm(INCH /HR) = .419 TOTAL AREA(ACRES) = 8.37 PEAK FLOW RATE(CFS) = 14.95 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .63 HALFSTREET FLOODWIDTH(FEET) = 21.63 FLOW VELOCITY(FEET /SEC.) = 3.00 DEPTH *VELOCITY = 1.89 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** I/ FLOW PROCESS FROM NODE 603.00 TO NODE 601.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW« «< II 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.407 SOIL CLASSIFICATION IS "B" RESIDENTIAL -> 2 DWELLINGS /ACRE SUBAREA LOSS RATE, Fm(INCH /HR) = .525 I SUBAREA AREA(ACRES) = 2.30 SUBAREA RUNOFF(CFS) = 3.90 EFFECTIVE AREA(ACRES) = 10.65 II 7 II AVERAGED Fm(INCH /HR) = .442 TOTAL AREA(ACRES) = 10.67 1 PEAR FLOW RATE(CFS) = 18.84 TC(MIN) = 22.61 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 1 II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 22.61 RAINFALL INTENSITY (INCH. /HOUR) = 2.41 EFFECTIVE STREAM AREA(ACRES) = 10.65 TOTAL STREAM AREA(ACRES) = 10.67 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 18.84 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE ««< USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.03 RAIN INTENSITY(INCH /HOUR) = 3.07 - -KSE4 EFFECTIVE AREA(ACRES) = 150.17 /NFU T TOTAL AREA(ACRES) = 169.16 PEAK FLOW RATE(CFS) = 355.69 AVERAGED LOSS RATE, Fm(IN /HR) = .505 Fr ".^ r /tto D C 4.0/ I ** ******************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** * *** ** FLOW PROCESS FROM NODE 601.01 TO NODE 601.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.03 Ell RAINFALL INTENSITY (INCH. /HOUR) = 3.07 EFFECTIVE STREAM AREA(ACRES) = 150.17 TOTAL STREAM AREA(ACRES) = 169.16 PEAK FLOW RATE(CFS) AT CONFLUENCE = 355.69 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE i NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 18.84 22.61 2.407 .44 10.65 111 2 355.69 15.03 3.075 .50 150.17 R AINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. I _ SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE 1 8 II 11 NUMBER Q(CFS) AREA(ACRES) 1 282.08 160.82 2 372.48 157.25 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 372.48 TIME(MINUTES) = 15.030 EFFECTIVE AREA(ACRES) = 157.25 TOTAL AREA(ACRES) = 179.83 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 601.01 TO NODE 606.10 IS CODE = 4 11 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« «< » » >USING USER - SPECIFIED PIPESIZE « «< DEPTH OF FLOW IN 90.0 INCH PIPE IS 60.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.8 UPSTREAM NODE ELEVATION = 1036.80 DOWNSTREAM NODE ELEVATION = 1032.10 FLOWLENGTH(FEET) = 1190.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 90.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 372.48 TRAVEL TIME(MIN.) = 1.68 TC(MIN.) = 16.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.10 TO NODE 606.10 IS CODE = 8 gl » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.885 SOIL CLASSIFICATION IS "B" 10 COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .33 SUBAREA RUNOFF(CFS) = .83 EFFECTIVE AREA(ACRES) = 157.58 10 AVERAGED Fm(INCH /HR) = .501 TOTAL AREA(ACRES) = 180.16 PEAK FLOW RATE(CFS) = 372.48 TC(MIN) = 16.71 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 11 FLOW PROCESS FROM NODE 606.10 TO NODE 606.01 IS CODE = 4 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< »» >USING USER - SPECIFIED PIPESIZE « «< DEPTH OF FLOW IN 90.0 INCH PIPE IS 60.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1032.10 DOWNSTREAM NODE ELEVATION = 1031.30 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 90.00 NUMBER OF PIPES = 1 f PIPEFLOW THRU SUBAREA(CFS) = 372.48 9 L il TRAVEL TIME(MIN.) = .28 TC(MIN.) = 16.99 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.01 TO NODE 606.01 IS CODE = 1 II » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: 11 TIME OF CONCENTRATION(MINUTES) = 16.99 RAINFALL INTENSITY (INCH. /HOUR) = 2.86 EFFECTIVE STREAM AREA(ACRES) = 157.58 TOTAL STREAM AREA(ACRES) = 180.16 PEAK FLOW RATE(CFS) AT CONFLUENCE = 372.48 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.01 TO NODE 606.01 IS CODE = 7 li » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE « «< USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.73 RAIN INTENSITY(INCH /HOUR) = 3.11 EFFECTIVE AREA(ACRES) = 99.90 TOTAL AREA(ACRES) = 99.90 PEAK FLOW RATE(CFS) = 231.57 AVERAGED LOSS RATE, Fm(IN /HR) = .537 F7 , 4 „, 5 farX 11 T,CAc T /3.732... ************************* * * * * * * * * * * * * * * * * * * * *a * * * *� * ** * * * * * * ** II FLOW PROCESS FROM NODE 606.01 TO NODE 606.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.73 RAINFALL INTENSITY (INCH. /HOUR) = 3.11 EFFECTIVE STREAM AREA(ACRES) = 99.90 TOTAL STREAM AREA(ACRES) = 99.90 li PEAK FLOW RATE(CFS) AT CONFLUENCE = 231.57 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) li 1 372.48 16.99 2.857 .50 157.58 II 2 231.57 14.73 3.112 .54 99.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. II SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) ,I 1 581.07 257.48 I 10 I: 2 589.51 236.52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 589.51 TIME(MINUTES) = 14.730 EFFECTIVE AREA(ACRES) = 236.52 TOTAL AREA(ACRES) = 280.06 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.00 TO NODE 606.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.112 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = .61 SUBAREA RUNOFF(CFS) = 1.67 EFFECTIVE AREA(ACRES) = 237.13 AVERAGED Fm(INCH /HR) = .515 TOTAL AREA(ACRES) = 280.67 PEAR FLOW RATE(CFS) = 589.51 TC(MIN) = 14.73 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 606.01 TO NODE 607.01 IS CODE = 4 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING USER- SPECIFIED PIPESIZE « «< PIPEFLOW'VELOCITY(FEET /SEC.) = 11.7 UPSTREAM NODE ELEVATION = 1030.80 DOWNSTREAM NODE ELEVATION = 1028.83 FLOWLENGTH(FEET) = 520.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 96.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 589.51 TRAVEL TIME(MIN.) = .74 TC(MIN.) = 15.47 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 607.01 TO NODE 607.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR « «< O CONFLUENCE 11 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.47 RAINFALL INTENSITY (INCH. /HOUR) = 3.02 EFFECTIVE STREAM AREA(ACRES) = 237.13 TOTAL STREAM AREA(ACRES) = 280.67 PEAR FLOW RATE(CFS) AT CONFLUENCE = 589.51 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 607.01 TO NODE 607.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« «< 11 $ USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.66 RAIN INTENSITY(INCH /HOUR) = 3.00 EFFECTIVE AREA(ACRES) = 3.00 TOTAL AREA(ACRES) = 3.00 PEAR FLOW RATE(CFS) = 6.871 AVERAGED LOSS RATE, Fm(IN /HR) = .456 87 , 7 05,/tots 6Nc, **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 607.01 TO NODE 607.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< r » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.66 RAINFALL INTENSITY (INCH. /HOUR) = 3.00 EFFECTIVE STREAM AREA(ACRES) = 3.00 TOTAL STREAM AREA(ACRES) = 3.00 1E PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.87 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 589.51 15.47 3.022 .52 237.13 2 6.87 15.66 3.000 .46• 3.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 1 596.36 240.09 2 591.17 240.13 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAR FLOW RATE(CFS) = 596.36 TIME(MINUTES) = 15.469 EFFECTIVE AREA(ACRES) = 240.09 TOTAL AREA(ACRES) = 283.67 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 283.67 EFFECTIVE AREA(ACRES) = 240.09 PEAK FLOW RATE(CFS) = 596.36 END OF RATIONAL METHOD ANALYSIS 11 1 12 L/AlE "AG " 25- )'EAie Fuzzy I>El/ELO/°E,l) LI I' **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: HALL & FOREMAN 11 * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * EMPIRE CENTER LINE "A6" FOR 25 -YR STORM * DESIGN Q FOR MAIN LINE AND LATERALS * BY: J.K. 1; *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FECNLA.025 TIME/DATE OF STUDY: 15:16 8/29/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 430.20 TO NODE 227.01 IS CODE = 2 » » > RATIONAL METHOD INITIAL SUBAREA ANALYSIS« «< 11 DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 11 UPSTREAM ELEVATION = 1065.00 DOWNSTREAM ELEVATION = 1061.00 ELEVATION DIFFERENCE = 4.00 TC = 304 *[( 500.00 ** 3.00)/( 4.00)] ** .20 = 9.591 11 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.203 JO SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 11 SUBAREA RUNOFF(CFS) = 2.25 TOTAL AREA(ACRES) = .80 PEAK FLOW RATE(CFS) = 2.25 11 1 F 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 227.01 TO NODE 430.02 IS CODE = 6 II »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1061.00 DOWNSTREAM ELEVATION = 1054.00 II STREET LENGTH(FEET) = 900.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.00 li INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 11 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.91 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 1/ HALFSTREET FLOODWIDTH(FEET) = 12.16 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.34 PRODUCT OF DEPTH &VELOCITY = .94 li STREETFLOW TRAVELTIME(MIN) = 6.40 TC(MIN) = 15.99 j s 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.356 SOIL CLASSIFICAN IS "B" I/ COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 3.28 EFFECTIVE AREA(ACRES) = 2.40 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) = 4.93 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .43 HALFSTREET FLOODWIDTH(FEET) = 13.78 FLOW VELOCITY(FEET /SEC.) = 2.36 DEPTH *VELOCITY = 1.02 li **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** li FLOW PROCESS FROM NODE 430.02 TO NODE 430.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< li CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.99 RAINFALL INTENSITY (INCH. /HOUR) = 2.36 EFFECTIVE STREAM AREA(ACRES) = 2.40 II TOTAL STREAM AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.93 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.00 TO NODE 229.01 IS CODE = 2 II » »>RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< DEVELOPMENT IS COMMERCIAL 11 2 II II TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 500.00 UPSTREAM ELEVATION = 1063.00 DOWNSTREAM ELEVATION = 1060.50 ELEVATION DIFFERENCE = 2.50 TC = .304 *[( 500.00 ** 3.00)/( 2.50)] ** .20 = 10.536 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.027 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 2.42 TOTAL AREA(ACRES) = .91 PEAK FLOW RATE(CFS) = 2.42 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 229.01 TO NODE 430.02 IS CODE = 6 =• » » > COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1060.50 DOWNSTREAM ELEVATION = 1054.00 STREET LENGTH(FEET) = 800.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 28.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 26.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 [JI SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.89 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 12.16 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.33 [li PRODUCT OF DEPTH &VELOCITY = .94 STREETFLOW TRAVELTIME(MIN) = 5.71 TC(MIN) = 16.25 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.334 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.45 SUBAREA RUNOFF(CFS) = 2.95 EFFECTIVE AREA(ACRES) = 2.36 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 2.36 PEAK FLOW RATE(CFS) = 4.80 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 12.97 FLOW VELOCITY(FEET /SEC.) = 2.56 DEPTH *VELOCITY = 1.07 (� **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** (� FLOW PROCESS FROM NODE 430.02 TO NODE 430.02 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » »>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: 3 II t_ II II TIME OF CONCENTRATION(MINUTES) = 16.25 RAINFALL INTENSITY (INCH. /HOUR) = 2.33 EFFECTIVE STREAM AREA(ACRES) = 2.36 TOTAL STREAM AREA(ACRES) = 2.36 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.80 CONFLUENCE INFORMATION: II STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) II 1 4.93 15.99 2.356 .08 2.40 2 4.80 16.25 2.334 .08 2.36 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1/ 1 9.70 4.72 2 9.68 4.76 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: I/ PEAK FLOW RATE(CFS) = 9.70 TIME(MINUTES) = 15.994 EFFECTIVE AREA(ACRES) = 4.72 TOTAL AREA(ACRES) = 4.76 11 ******************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM; NODE 430.02 TO NODE 432.11 IS CODE = 3 1/ » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< II DEPTH OF FLOW IN 21.0 INCH PIPE IS 17.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.6 UPSTREAM NODE ELEVATION = 1046.20 DOWNSTREAM NODE ELEVATION = 1044.00 li FLOWLENGTH(FEET) 550.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 9.70 II TRAVEL TIME(MIN.) = 1.98 TC(MIN.) = 17.97 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 432.11 TO NODE 432.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< II CONFLUENCE VALUES'USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.97 RAINFALL INTENSITY (INCH. /HOUR) = 2.20 II EFFECTIVE STREAM AREA(ACRES) = 4.72 TOTAL STREAM AREA(ACRES) = 4.76 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.70 II 4 II 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 431.00 TO NODE 432.11 IS CODE = 2 II » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1055.00 DOWNSTREAM ELEVATION = 1052.00 ELEVATION DIFFERENCE = 3.00 TC = .304 *[( 700.00 ** 3.00)/( 3.00)) ** .20 = 12.431 ill 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.741 S OIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 13.20 li TOTAL AREA(ACRES) = 5.50 PEAK FLOW RATE(CFS) = 13.20 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** 1 FLOW PROCESS FROM NODE 432.11 TO NODE 432.11 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES< « < 1 ______ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.43 al RAINFALL INTENSITY (INCH. /HOUR) = 2.74 EFFECTIVE STREAM AREA(ACRES) = 5.50 TOTAL STREAM AREA(ACRES) = 5.50 PEAK FLOW RATE(CFS)A,;CONFLUENCE = 13.20 ai ' . , oe CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) 1 9.70 17.97 2.197 .08 4.72 2 13.20 12.43 2.741 .08 5.50 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: I STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 20.20 10.22 ill 2 21.62 8.77 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 21.62 TIME(MINUTES) = 12.431 ill EFFECTIVE AREA(ACRES) = 8.77 Ull TOTAL AREA(ACRES) = 10.26 5 1 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.11 TO NODE 432.12 IS CODE = 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « < » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) ««< DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.6 UPSTREAM NODE ELEVATION = 1044.00 DOWNSTREAM NODE ELEVATION = 1041.75 FLOWLENGTH(FEET) = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 = PIPEFLOW THRU SUBAREA(CFS) 21.62 TRAVEL TIME(MIN.) = .26 TC(MIN.) = 12.69 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 431.10 TO NODE 432.12 IS CODE = 8 E » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.707 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.84 EFFECTIVE AREA(ACRES) = 9.97 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 11.46 PEAK, FLOW RATE(CFS) = 23.61 TC(MIN) ;. . -12.69 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.10 TO NODE 432.12 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.707 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.84 EFFECTIVE AREA(ACRES) = 11.17 AVERAGED Fm(INCH/HR) = .075 TOTAL AREA(ACRES) = 12.66 ® PEAK FLOW RATE(CFS) = 26.45 TC(MIN) = 12.69 ® **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 432.12 TO NODE 434.01 IS CODE = 3 » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA ««< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « « < DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.5 INCHES ® 6 1 PIPEFLOW VELOCITY(FEET /SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1041.75 DOWNSTREAM NODE ELEVATION = 1037.30 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 26.45 TRAVEL TIME(MIN.) = .57 TC(MIN.) = 13.26 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.00 TO NODE 434.01 IS CODE = 8 » »>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.637 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 8.99 EFFECTIVE AREA(ACRES) = 15.07 AVERAGED Fm(INCH /HR) = .075 TOTAL AREA(ACRES) = 16.56 PEAK FLOW RATE(CFS) = 34.74 TC(MIN) = 13.261 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 434.01 TO NODE 433.01 IS CODE = 3 » »>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « » » >USING;COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) « «< DEPTH OF FLOW IN 27.0 INCH PIPE IS 21.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.2 ji UPSTREAM NODE ELEVATION = 1037.30 DOWNSTREAM NODE ELEVATION = 1032.40 FLOWLENGTH(FEET) = 350.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 34.74 TRAVEL TIME(MIN.) = .57 TC(MIN.) = 13.83 ;:. **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.00 TO NODE 433.01 IS CODE = 8 » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW« «< 25 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.571 SOIL CLASSIFICATION IS "B" 1/ COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 13.48 EFFECTIVE AREA(ACRES) = 21.07 AVERAGED Fm(INCH /HR) = .075 1/ TOTAL AREA(ACRES) = 22.56 PEAK FLOW RATE(CFS) = 47.32 TC(MIN) = 13.83 7 1 1 II **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« «< » »>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES« «< II CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.83 RAINFALL INTENSITY (INCH. /HOUR) = 2.57 EFFECTIVE STREAM AREA(ACRES) = 21.07 TOTAL STREAM AREA(ACRES) = 22.56 PEAK FLOW RATE(CFS) AT CONFLUENCE = 47.32 II CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH /HOUR) (IN /HR) AREA(ACRES) li 1 47.32 13.83 2.571 .08 21.07 Z RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO 1: CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: k STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 47.32 21.07 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: N§ 1; PEAK FLOW RATE(CFS) = 47.32 TIME(MINUTES) = 13.830 v EFFECTIVE AREA(ACRES) = 21.07 TOTAL AREA(ACRES) = 22.56 1; **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 1: » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.83 RAINFALL INTENSITY (INCH. /HOUR) = 2.57 EFFECTIVE STREAM AREA(ACRES) = 21.07 TOTAL STREAM AREA(ACRES) = 22.56 II PEAK FLOW RATE(CFS) AT CONFLUENCE = 47.32 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** II FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 7 » » >USER SPECIFIED HYDROLOGY INFORMATION AT NODE« II USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 26.63 RAIN INTENSITY(INCH /HOUR) = 1.74 DATA Fr ■ EFFECTIVE AREA(ACRES) = 217.09 ''" ` /A /E' 4 NoDt'h II ¢33.0, 8 N M II / fir l' II II 1 TOTAL AREA(ACRES) = 231.53 PEAK FLOW RATE(CFS) = 390.83 AVERAGED LOSS RATE, Fm(IN/HR) = .330 • II*********************************************************************** FLOW PROCESS FROM NODE 433.01 TO NODE 433.01 IS CODE = 1 I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< >»»AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: II TIME OF CONCENTRATION(MINUTES) = 26.63 RAINFALL INTENSITY (INCH./HOUR) = 1.74 EFFECTIVE STREAM AREA(ACRES) = 217.09 1 TOTAL STREAM AREA(ACRES) = 231.53 PEAK FLOW RATE(CFS) AT CONFLUENCE = 390.83 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE I NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 47.32 13.83 2.571 .08 21.07 li 2 390.83 26.63 1.735 .33 217.09 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. gl SUMMARY RESULTS: STREAM CONFLUECE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 01 1 371.00 422.31 133.81 2 238.16 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: II PEAK FLOW RATE(CFS) = 42 EFFECTIVE AREA(ACRES) = ;1 /1 TIME(MINUTES) = 26.630 16 TOTAL AREA(ACRES) = 254.09 1E END OF STUDY SUMMARY: 4 ,,r, es,v,/l i eite.... o 7' TOTAL AREA(ACRES) = 254.09 r m EFFECTIVE AREA(ACRES) = 238.16 /hoe ri 1E PEAK FLOW RATE(CFS) = 422.31 END OF RATIONAL METHOD ANALYSIS II 1 II 11 9 11 II 1 1 • .1 1 _i 1 Cfile111/97/oN ? (a/00 -a zs) 11 []( GE fit , al ' 3 ul LI :11 Li A LI I -- ' ' - . /e2 /02./0 ,\., /bDE /o4// to9i + ft X08 _ / 51°deiC 1.k1 p 1 - I -1- . . r. , . 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I ( a,.. _ Q ) ,. 38. 7/ c./.. . s: /}DD T// /s iN'f ti-r/ o/✓ AT ,, 5# 4t 30. v/ ,4S Luck S�Fc/ To ii row = o. 098 ifi�i�° bA/6 f/" 65-#2-6 .7- ¢ ¢ 1 _ l 1 2 7Xt (a ,..- c ) 1 T #010E - /olv. // / //Y6 ~5' 1 779F ,P/f - e - if ', ce o/ /a-/J( ,42 ,z3 Y•<° Q ,QOM e',..57 SIDE oP ft.PorIor/o/r/ eE,v,'a / " 4v /LL o o ///1/6" fi (f �/ s� �' ,r�'� 8) L G T 1 1 a goo = / // 7O , C. /5. 612s =. 86.82 c. s. 4 = 5'/. 5! Ale. J Q I .. ( // /. 76, ///. 710 _ 81o.8 Z I r a= it. ,5 c. (at"- 61 = 0. 9* c. 's. Fol = o. /0 �iiV T = .2/. 0 98 /4-" II T ai o "DI) s 7 0 �/ � E 0- /08, 0 / /N /-/ II I I I 1 3 i L 7 Co%• ells) err NooE /.17v/ l/A/6 of pieoAloT /oN C'ENTEfe it/o.DE -4 //7o/ c�,.. = /3 /. 9/ 0 i5 lo/ 77 C / • S. Ac. - 9 2 frfrAi. rim = o. / 1 a Cat -. -air) /j/.,9/- -/O/77 d 50.3/ s a s = / /.So a= //.5`0 ,40- Q )= 30. /' e•'s. 72 2 /rip LIII Li �1 1 4 Ir K 7i/F f ah.- a AT rl M # 306.0/ evD of �/NE l i 1 //v7ex'SE772 / Lr/ /TH Z/,' "ca /t/040 E .95LL 3496..o/ /r/ooe 7ife ,22.E o / 1 a,.. = c. s. Gt,.e 26'2. 38 e -7Cs. a a5- = 2 e./f. a Ls = .?/ 8 73 -11 3 /64.. ¢z. ,¢c. 1 - /15:29 /9c. gZ 72 As FM o, /0 Ai* • 0 98 %r d a a. 3 /i 4 . 1 3 - 38 3/ 73 e. 1: Q = ,213.3 - .2/69,73 = 2¢. e3 C./5. �a► a2r .3/ 7s -_ 249'. 63 7/2 els. d /lo�y�L- /05: . /3 / 0c. (at.. - o -) Z/2- X 21/3 - ¢ 3/ 7s' 1 /9C. Gc�¢•7� 1 (a a) = 7/Z G./s. 1 Xtar • 0,8 /N V � 1 Tc / ITIE G tr•• - o 4 T o f o o " C o No � 3 �. � �iry� a c 1 .p /' Te•'gc-r /opt/ A// 771 t w 1 `,6" 1 AloDE # 3o&'. o I ,c/ODE pcfr /176 ! at... 2 3 2.8 o c.,�s. Q t .. = /3/ 9 ,�' c _r. Q Z s /8/ '. . a zs /o /. 77 c.,'s. A 55.16 3/ sue. m, r. t7 70 �''' T � /�. 9a "bill . fM c o. /,2 44 �� s :16 i gr Q .2 3.2. o-- / /. /0 e.. Q �.. = 8 3 9/ .89 4 Q25- s /8/ 39 -- lot 77 — 79 Z C.7(5. C a p.. - C as)=7Da.89 c. 5. 98.2 -- .5'v.3/ plc. 1 Ca,..- 01. %) ,i27c¢7 9r> d CiL. /oo, 89 1 a.= /o. 1 ss I • o/' /ii, �� _ /7 7° 1 1 pN 7Xe C Qr.o- Qz.$ AT" it/o e . - 3//. o1 / /NE' C /v. of dive;l /51004' # 311o/ NoPe 3a6..oi 1 •= 5/1.93 c. 11-.979 ¢o3. i/ C_'S' ( S 387, ,92. 7 0 ,4c. ,q -s !a 8. i r �,.. 2v. 72 hurl. T /7 7a N9i'H M at ID /iV/ ' , 30 c. ' 2 a2.f - * 462 - 57.0.83- ¢97 6..9 /7 /¢ e-f:4 4 02s - = 0 -- 38Z89= /.5732 Q ��/ - � 32 /.a2 e•r.s . a ft ,292.70 2 ¢.4 8 - 2$ 02 de. 1 A A .230.4-6 -- 2-o Z . 4 * = 28,02_ [� / . $ (.28. o z) ,2. 98 ,4 4 A- a /7./¢ 1 cam 2,.98 (a,._ a /, 8 e-45. 1 X- 0.10 /iv / r� o. 7Z r';». 1 1 7 �� ( a..- Q Z o T Z � � ���� 3� f �yD�a y rmi 1 /6.2.2 e.45. Q = /2. 83 c • ' S . i s / Z ,4 C . ,9 = J:72_ 3 0 0 7 3 //%o a, 07-5 �� �. � - G ZS - 1�. Z Z - � ? . 83-= 3,33 C. 72 0.07.5" Use 7 joie e. S :. 0-9 ,lyarzoic c , CA` cct L/0 70r i 1 1 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) Ver. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * Q100 -YR FOR AREA 312 OF HYDROLOGY MAP * THIS IS TO CALCULATE DIFFERENCE OF (Q100 -Q25) * *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FEC312.100 TIME/DATE OF STUDY: 10:41 7/16/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL*- - USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER- DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.3400 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** I] FLOW PROCESS FROM NODE 312.00 TO NODE 311.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW - LENGTH = 700.00 UPSTREAM ELEVATION = 1052.00 DOWNSTREAM ELEVATION = 1047.60 I ELEVATION DIFFERENCE = 4.40 TC = .304 *[( 700.00 ** 3.00)/( 4.40)] ** .20 = 11.514 100 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.608 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 16.22 TOTAL AREA(ACRES) = 5.10 PEAK FLOW RATE(CFS) = 16.22 END OF STUDY SUMMARY: 11 1 1 TOTAL AREA(ACRES) = 5.10 EFFECTIVE AREA(ACRES) = 5.10 II PEAK FLOW RATE(CFS) = 16.22 END OF RATIONAL METHOD ANALYSIS 1 11 t li 11 OP di IP IP IP 01 1 11 II 2 11 **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,87 Advanced Engineering Software (aes) ' Ver. 4.1C Release Date: 5/11/87 Serial # 100908 Especially prepared for: HALL & FOREMAN * * * * * * * * * * * * * * * * * * * * * * * * ** DESCRIPTION OF STUDY * * * * * * * * * * * * * * * * * * * * ** * Q25 -YR FOR AREA 312 OF HYDROLOGY MAP * THIS IS TO CALCULATE DIFFERENCE OF (Q100 -Q25) * *************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FILE NAME: FEC312.025 TIME/DATE OF STUDY: 10:47 7/16/1990 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -- *TIME-OF- CONCENTRATION MODEL*-- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = *USER - DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* = 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = .920 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.340 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT . = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.0659 SLOPE OF INTENSITY DURATION CURVE = .6000 I; **************************************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** I; FLOW PROCESS FROM NODE 312.00 TO NODE 311.01 IS CODE = 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< I; DEVELOPMENT IS COMMERCIAL TC = K *[(LENGTH ** 3.00) /(ELEVATION CHANGE)] ** .20 INITIAL SUBAREA FLOW- LENGTH = 700.00 UPSTREAM ELEVATION = 1052.00 DOWNSTREAM ELEVATION = 1047.60 ELEVATION DIFFERENCE = 4.40 TC = .304 *[( 700.00 ** 3.00)/( 4.40)] ** .20 = 11.514 25 YEAR RAINFALL /HOUR) = 2.870 SOIL CLASSIFICATION IS "B" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH /HR) = .0750 SUBAREA RUNOFF(CFS) = 12.83 TOTAL AREA(ACRES) = 5.10 PEAK FLOW RATE(CFS) = 12.83 END OF STUDY SUMMARY: 1 1 TOTAL AREA(ACRES) = 5.10 EFFECTIVE AREA(ACRES) = 5.10 1 PEAK FLOW RATE(CFS) = 12.83 END OF RATIONAL METHOD ANALYSIS 11 7 1 F1 J E11 Ell E11 [11 [11 11 Ell , III LI , 3 1 , LI 2 LI