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Village of Heritage Hydrology Line B
4� /I�• wag CIVIL ENGINEERING • LAND PLANNING • LAND SURVEYING VILLAGE OF HERITAGE EAST & WEST VILLAGE HYDROLOGY LINE B REVISED 12/5/88 HALL & FOREMAN, INC. 3170 REDHILL AVE. COSTA MESA, CA 92626 (714)641-8777 JOB NO. 3534-002 3170 REDHILL AVENUE 0 COSTAMESA, CALIFORNIA 92626-3428 0 (714) 641-8777 eo CIVIL ENGINEERING o LAND PLANNING LAND SURVEYING SUBJECT �V V/ v////) h�y1�h'vLuC�r BY - _ -�0�. 1�1 DATE 121Z19r3 JOB NO. 38?d-0zJ SHEET OF 77 '67 14Z ;•-�-. -- 91 j 67 6/,o,56:_. . 2 :00_- -. d � �- _ ��= -1-5 ; =T ,j 173 //✓���,ey 6-3 4, �1 d. . _ SE 667 as�,6UL 29-53 �y-- 1 7-- 71. 3170 REDHILL AVENUE 0 COSTAMESA, CALIFORNIA 92626-3428 0 (714) 641-8777 **************************************************************************** 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 ************************** * EAST VILLAGE HYDROLOGY, LINE B * Q 100 YR * V.N./J.M., JN 3834-020, 11/23/1988 ************************************************************************** FILE NAME: A:EVLINEB.DAT TIME/DATE OF STUDY: 13:12 11/23/1988 -------------------------------------- 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: rORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 oLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 108.05 TO NODE 109.00 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 = 550.00 UPSTREAM ELEVATION = 1305.50 DOWNSTREAM ELEVATION = 1292.00 ELEVATION DIFFERENCE = 13.50 TC = .389*[( 550.00** 3.00)/( 13.50)]** .20 = 10.188 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.259 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 10.19 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 10.19 **************************************************************************** vLOW PROCESS FROM NODE 108.05 TO NODE 109.00 IS CODE = 1 ------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = .10.19 RAINFALL INTENSITY (INCH./HOUR) = 4.26 EFFECTIVE STREAM AREA(ACRES) = 3.00 TOTAL STREAM AREA(ACRES) = 3.00 EAK FLOW RATE(CFS) AT CONFLUENCE = 10.19 FLOW PROCESS FROM NODE 108.03 TO NODE 109.00 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 = 850.00 UPSTREAM ELEVATION = 1297.40 DOWNSTREAM ELEVATION = 1292.00 ELEVATION DIFFERENCE = 5.40 TC = .389*[( 850.00** 3.00)/( 5.40)]** .20 = 15.890 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.262 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 9.75 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 9.75 **************************************************************************** FLOW PROCESS FROM NODE 108.03 TO NODE 109.00 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) = 15.89 RAINFALL INTENSITY (INCH./HOUR) = 3.26 EFFECTIVE STREAM AREA(ACRES) = 3.90 TOTAL STREAM AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.75 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 10.19 10.19 4.259 .49 3.00 2 9.75 15.89 3.262 .49 3.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 18.69 5.50 2 17.25 6.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 18.69 TIME(MINUTES) = 10.188 EFFECTIVE AREA(ACRES) = 5.50 "OTAL AREA(ACRES) = 6.90 **************************************************************************** FLOW PROCESS FROM NODE 109.00 TO NODE 181.05 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< nEPTH OF FLOW IN 24.0 INCH PIPE IS 14.9 INCHES IPEFLOW VELOCITY(FEET/SEC.) = 9.1 UPSTREAM NODE ELEVATION = 1292.00 DOWNSTREAM NODE ELEVATION = 1278.30 FLOWLENGTH(FEET) = 950.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 18.69 TRAVEL TIME(MIN.) = 1.73 TC(MIN.) = 11.92 **************************************************************************** FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 11.92 RAINFALL INTENSITY (INCH./HOUR) = 3.88 EFFECTIVE STREAM AREA(ACRES) = 5.50 TOTAL STREAM AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 18.69 **************************************************************************** FLOW PROCESS FROM NODE 181.02 TO NODE 109.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ---------------------------- EVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5-7 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 780.00 UPSTREAM ELEVATION = 1300.00 DOWNSTREAM ELEVATION = 1294.00 ELEVATION DIFFERENCE = 6.00 TC = .389*[( 780.00** 3.00)/( 6.00)]** .20 = 14.777 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.408 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 5.52 TOTAL AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) = 5.52 **************************************************************************** FLOW PROCESS FROM NODE 109.10 TO NODE 181.05 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ------------------------- UPSTREAM ELEVATION = 1293.20 DOWNSTREAM ELEVATION = 1278.30 STREET LENGTH(FEET) = 930.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 18.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 'OUTSIDE STREET CROSSFALL(DECIMAL) = .180 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.64 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) = .61 HALFSTREET FLOODWIDTH(FEET) = 4.00 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.55 PRODUCT OF DEPTH&VELOCITY = 3.36 STREETFLOW TRAVELTIME(MIN) = 2.79 TC(MIN) = 17.57 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.072 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 1.81 SUBAREA RUNOFF(CFS) = 4.21 EFFECTIVE AREA(ACRES) = 3.91 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 3.91 PEAK FLOW RATE(CFS) = 9.10 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .64 HALFSTREET FLOODWIDTH(FEET) = 4.21 FLOW VELOCITY(FEET/SEC.) = 5.95 DEPTH*VELOCITY = 3.83 **************************************************************************** FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 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) = 17.57 '"AINFALL INTENSITY (INCH./HOUR) = 3.07 FFECTIVE STREAM AREA(ACRES) = 3.91 TOTAL STREAM AREA(ACRES) = 3.91 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.10 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 18.69 11.92 3.876 .49 5.50 2 9.10 17.57 3.072 .49 3.91 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 26.78 8.15 2 23.36 9.41 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 26.78 TIME(MINUTES) = 11.921 EFFECTIVE AREA(ACRES) = 8.15 TOTAL AREA(ACRES) = 10.81 **************************************************************************** -LOW PROCESS FROM NODE 181.05 TO NODE 181.05 IS CODE = 1 ------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ------------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 11.92 RAINFALL INTENSITY (INCH./HOUR) = 3.88 EFFECTIVE STREAM AREA(ACRES) = 8.15 TOTAL STREAM AREA(ACRES) = 10.81 DEAK FLOW RATE(CFS) AT CONFLUENCE = 26.78 FLOW PROCESS FROM NODE 181.00 TO NODE 181.08 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 = 1000.00 UPSTREAM ELEVATION = 1296.50 DOWNSTREAM ELEVATION = 1280.30 ELEVATION DIFFERENCE = 16.20 TC = .389*[( 1000.00** 3.00)/( 16.20)]** .20 = 14.062 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.511 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 19.20 TOTAL AREA(ACRES) = 7.05 PEAK FLOW RATE(CFS) = 19.20 **************************************************************************** FLOW PROCESS FROM NODE 181.08 TO NODE 181.05 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< PSTREAM ELEVATION = 1280.30 DOWNSTREAM ELEVATION = 1278.30 STREET LENGTH(FEET) = 180.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 19.40 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) = .97 HALFSTREET FLOODWIDTH(FEET) = 4.98 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.62 PRODUCT OF DEPTH&VELOCITY = 6.44 STREETFLOW TRAVELTIME(MIN) = .45 TC(MIN) = 14.52 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.444 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) _ .15 SUBAREA RUNOFF(CFS) _ .40 "FFECTIVE AREA(ACRES) = 7.20 .VERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) = 19.20 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .97 HALFSTREET FLOODWIDTH(FEET) = 4.98 FLOW VELOCITY(FEET/SEC.) = 6.55 DEPTH*VELOCITY = 6.37 FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 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) = 14.52 RAINFALL INTENSITY (INCH./HOUR) = 3.44 EFFECTIVE STREAM AREA(ACRES) = 7.20 TOTAL STREAM AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 19.20 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 26.78 11.92 3.876 .49 8.15 2 19.20 14.52 3.444 .49 7.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 44.85 14.07 2 42.57 15.35 ^.OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: EAK FLOW RATE(CFS) = 44.85 TIME(MINUTES) = 11.921 EFFECTIVE AREA(ACRES) = 14.07 TOTAL AREA(ACRES) = 18.01 FLOW PROCESS FROM NODE 181.05 TO NODE 181.06 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< - ------------------ DEPTH OF FLOW IN 42.0 INCH PIPE IS 29.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.3 UPSTREAM NODE ELEVATION = 1278.30 DOWNSTREAM NODE ELEVATION = 1277.90 FLOWLENGTH(FEET) = 130.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 44.85 TRAVEL TIME(MIN.) = .34 TC(MIN.) = 12.26 FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< -ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: .IME OF CONCENTRATION(MINUTES) = 12.26 RAINFALL INTENSITY (INCH./HOUR) = 3.81 EFFECTIVE STREAM AREA(ACRES) = 14.07 TOTAL STREAM AREA(ACRES) = 18.01 PEAK FLOW RATE(CFS) AT CONFLUENCE = 44.85 **************************************************************************** FLOW PROCESS FROM NODE 181.01 TO NODE 181.06 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 = 1000.00 UPSTREAM ELEVATION = 1296.50 DOWNSTREAM ELEVATION = 1277.90 ELEVATION DIFFERENCE = 18.60 TC = .389*[( 1000.00** 3.00)/( 18.60)]** .20 = 13.679 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.569 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 26.23 TOTAL AREA(ACRES) = 9.45 PEAK FLOW RATE(CFS) = 26.23 **************************************************************************** FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 13.68 RAINFALL INTENSITY (INCH./HOUR) = 3.57 FFFECTIVE STREAM AREA(ACRES) = 9.45 OTAL STREAM AREA(ACRES) = 9.45 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.23 **************************************************************************** FLOW PROCESS FROM NODE 181.04 TO NODE 181.07 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 = 1298.40 DOWNSTREAM ELEVATION = 1279.00 ELEVATION DIFFERENCE = 19.40 TC = .304*[( 1000.00** 3.00)/( 19.40)]** .20 = 10.600 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.159 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 5.05 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 5.05 **************************************************************************** FLOW PROCESS FROM NODE 181.07 TO NODE 181.06 IS CODE = 6 - -------------------------------------------------------------------------- »»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< -------------- UPSTREAM ELEVATION = 1279.00 DOWNSTREAM ELEVATION = 1277.90 STREET LENGTH(FEET) = 370.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 'OUTSIDE STREET CROSSFALL(DECIMAL) = .420 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5.80 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) = .80 HALFSTREET FLOODWIDTH(FEET) = 3.43 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.13 PRODUCT OF DEPTH&VELOCITY = 2.50 STREETFLOW TRAVELTIME(MIN) = 1.97 TC(MIN) = 12.57 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.755 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = .46 SUBAREA RUNOFF(CFS) = 1.51 EFFECTIVE AREA(ACRES) = 1.84 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.84 PEAK FLOW RATE(CFS) = 6.06 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .81 HALFSTREET FLOODWIDTH(FEET) = 3.46 FLOW VELOCITY(FEET/SEC.) = 3.17 DEPTH*VELOCITY = 2.58 ************************************************************************* FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.57 RAINFALL INTENSITY (INCH./HOUR) = 3.75 EFFECTIVE STREAM AREA(ACRES) = 1.84 TOTAL STREAM AREA(ACRES) = 1.84 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.06 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 44.85 12.26 3.811 .49 14.07 2 26.23 13.68 3.569 .49 9.45 3 6.06 12.57 3.755 .10 1.84 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) - ------------------------------------------- 1 76.21 24.34 2 73.58 25.36 3 75.71 24.59 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 76.21 TIME(MINUTES) = 12.265 EFFECTIVE AREA(ACRES) = 24.34 TOTAL AREA(ACRES) = 29.30 FLOW PROCESS FROM NODE 181.06 TO NODE 190.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 39.0 INCH PIPE IS 26.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.6 UPSTREAM NODE ELEVATION = 1277.90 DOWNSTREAM NODE ELEVATION = 1269.00 FLOWLENGTH(FEET) = 660.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 76.21 TRAVEL TIME(MIN.) = .88 TC(MIN.) = 13.14 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.14 RAINFALL INTENSITY (INCH./HOUR) = 3.66 EFFECTIVE STREAM AREA(ACRES) = 24.34 TOTAL STREAM AREA(ACRES) = 29.30 DEAK FLOW RATE(CFS) AT CONFLUENCE = 76.21 **************************************************************************** FLOW PROCESS FROM NODE 191.11 TO NODE 191.12 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 = 1281.50 DOWNSTREAM ELEVATION = 1272.70 ELEVATION DIFFERENCE = 8.80 TC = .304*[( 1000.00** 3.00)/( 8.80)]** .20 = 12.416 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.783 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 4.21 TOTAL AREA(ACRES) = 1.27 PEAK FLOW RATE(CFS) = 4.21 **************************************************************************** FLOW PROCESS FROM NODE 191.12 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ,PSTREAM ELEVATION = 1272.70 DOWNSTREAM ELEVATION = 1266.40 STREET LENGTH(FEET) = 320.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 cPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.73 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .45 HALFSTREET FLOODWIDTH(FEET) = 2.96 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.58 PRODUCT OF DEPTH&VELOCITY = 2.50 STREETFLOW TRAVELTIME(MIN) = .96 TC(MIN) = 13.37 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.618 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .33 SUBAREA RUNOFF(CFS) = 1.05 EFFECTIVE AREA(ACRES) = 1.60 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) = 5.07 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .47 HALFSTREET FLOODWIDTH(FEET) = 3.05 FLOW VELOCITY(FEET/SEC.) = 5.50 DEPTH*VELOCITY = 2.60 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ^ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: IME OF CONCENTRATION(MINUTES) = 13.37 RAINFALL INTENSITY (INCH./HOUR) = 3.62 EFFECTIVE STREAM AREA(ACRES) = 1.60 TOTAL STREAM AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 5.07 **************************************************************************** FLOW PROCESS FROM NODE 191.00 TO NODE 191.13 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 = 1000.00 UPSTREAM ELEVATION = 1280.90 DOWNSTREAM ELEVATION = 1267.80 ELEVATION DIFFERENCE = 13.10 TC = .389*[( 1000.00** 3.00)/( 13.10)]** .20 = 14.672 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.422 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 14.86 TOTAL AREA(ACRES) = 5.62 PEAK FLOW RATE(CFS) = 14.86 FLOW PROCESS FROM NODE 191.13 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- »» >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = 1267.80 DOWNSTREAM ELEVATION = 1266.40 STREET LENGTH(FEET) = 300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 ISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 18.76 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) = 1.15 HALFSTREET FLOODWIDTH(FEET) = 5.68 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.81 PRODUCT OF DEPTH&VELOCITY = 5.55 STREETFLOW TRAVELTIME(MIN) = 1.04 TC(MIN) = 15.71 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.284 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 3.10 SUBAREA RUNOFF(CFS) = 7.81 EFFECTIVE AREA(ACRES) = 8.72 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 8.72 PEAK FLOW RATE(CFS) = 21.97 END OF SUBAREA STREETFLOW HYDRAULICS: nEPTH(FEET) = 1.24 HALFSTREET FLOODWIDTH(FEET) = 6.01 LOW VELOCITY(FEET/SEC.) = 4.99 DEPTH*VELOCITY = 6.19 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 15.71 RAINFALL INTENSITY (INCH./HOUR) = 3.28 EFFECTIVE STREAM AREA(ACRES) = 8.72 TOTAL STREAM AREA(ACRES) = 8.72 PEAK FLOW RATE(CFS) AT CONFLUENCE = 21.97 **************************************************************************** FLOW PROCESS FROM NODE 300.10 TO NODE 180.10 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 = 1291.00 -)OWNSTREAM ELEVATION = 1281.30 .,LEVATION DIFFERENCE = 9.70 TC = .304*[( 1000.00** 3.00)/( 9.70)]** .20 = 12.176 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.827 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 4.03 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 4.03 FLOW PROCESS FROM NODE 180.10 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = 1281.30 DOWNSTREAM ELEVATION = 1268.50 STREET LENGTH(FEET) = 930.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) _ .240 OUTSIDE STREET CROSSFALL(DECIMAL) _ .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.98 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .51 HALFSTREET FLOODWIDTH(FEET) = 3.20 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.80 PRODUCT OF DEPTH&VELOCITY = 2.44 STREETFLOW TRAVELTIME(MIN) = 3.23 TC(MIN) = 15.41 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.323 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 gUBAREA AREA(ACRES) _ .65 SUBAREA RUNOFF(CFS) = 1.89 FFECTIVE AREA(ACRES) = 1.85 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.85 PEAK FLOW RATE(CFS) = 5.37 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .52 HALFSTREET FLOODWIDTH(FEET) = 3.24 FLOW VELOCITY(FEET/SEC.) = 4.99 DEPTH*VELOCITY = 2.60 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 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) = 15.41 RAINFALL INTENSITY (INCH./HOUR) = 3.32 EFFECTIVE STREAM AREA(ACRES) = 1.85 TOTAL STREAM AREA(ACRES) = 1.85 PEAK FLOW RATE(CFS) AT CONFLUENCE = 5.37 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 76.21 13.14 3.656 .46 24.34 2 5.07 13.37 3.618 .10 1.60 3 21.97 15.71 3.284 .49 8.72 4 5.37 15.41 3.323 .10 1.85 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 107.12 34.78 2 106.39 34.96 3 99.22 36.51 4 100.15 36.34 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 107.12 TIME(MINUTES) = 13.140 EFFECTIVE AREA(ACRES) = 34.78 TOTAL AREA(ACRES) = 41.47 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 195.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 48.0 INCH PIPE IS 36.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1266.40 DOWNSTREAM NODE ELEVATION = 1260.00 FLOWLENGTH(FEET) = 910.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 107.12 TRAVEL TIME(MIN.) = 1.43 TC(MIN.) = 14.57 LOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.57 RAINFALL INTENSITY (INCH./HOUR) = 3.44 EFFECTIVE STREAM AREA(ACRES) = 34.78 TOTAL STREAM AREA(ACRES) = 41.47 PEAK FLOW RATE(CFS) AT CONFLUENCE = 107.12 **************************************************************************** FLOW PROCESS FROM NODE 191.01 TO NODE 195.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS IS SINGLE FAMILY RESIDENTIAL -> 5-7 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1280.50 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 20.50 TC = .389*[( 1000.00** 3.00)/( 20.50)]** .20 = 13.415 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.611 -OIL CLASSIFICATION IS "A" .ESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 14.83 TOTAL AREA(ACRES) = 5.27 PEAK FLOW RATE(CFS) = 14.83 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 ---------------------------------------------------------------------------- > »»DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE«« < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 13.42 RAINFALL INTENSITY (INCH./HOUR) = 3.61 EFFECTIVE STREAM AREA(ACRES) = 5.27 TOTAL STREAM AREA(ACRES) = 5.27 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.83 **************************************************************************** FLOW PROCESS FROM NODE 192.00 TO NODE 195.00 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 = 660.00 UPSTREAM ELEVATION = 1269.40 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 9.40 TC = .389*[( 660.00** 3.00)/( 9.40)]** .20 = 12.219 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.819 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 13.29 "'OTAL AREA(ACRES) = 4.43 PEAK FLOW RATE(CFS) = 13.29 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES «« < ---------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.22 RAINFALL INTENSITY (INCH./HOUR) = 3.82 EFFECTIVE STREAM AREA(ACRES) = 4.43 TOTAL STREAM AREA(ACRES) = 4.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.29 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 107.12 14.57 3.436 .43 34.78 2 14.83 13.42 3.611 .49 5.27 3 13.29 12.22 3.819 .49 4.43 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: "TREAM CONFLUENCE EFFECTIVE .UMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 132.88 44.48 2 131.64 41.72 3 128.96 38.39 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 132.88 TIME(MINUTES) = 14.572 EFFECTIVE AREA(ACRES) = 44.48 TOTAL AREA(ACRES) = 51.17 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 191.04 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 51.0 INCH PIPE IS 37.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1260.00 DOWNSTREAM NODE ELEVATION = 1255.90 FLOWLENGTH(FEET) = 490.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 132.88 TRAVEL TIME(MIN.) = .68 TC(MIN.) = 15.25 **************************************************************************** FLOW PROCESS FROM NODE 191.04 TO NODE 191.04 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.25 RAINFALL INTENSITY (INCH./HOUR) = 3.34 "'FFECTIVE STREAM AREA(ACRES) = 44.48 JTAL STREAM AREA(ACRES) = 51.17 PEAK FLOW RATE(CFS) AT CONFLUENCE = 132.88 **************************************************************************** FLOW PROCESS FROM NODE 191.02 TO NODE 191.05 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 = 1000.00 UPSTREAM ELEVATION = 1281.00 DOWNSTREAM ELEVATION = 1267.70 ELEVATION DIFFERENCE = 13.30 TC = .389*[( 1000.00** 3.00)/( 13.30)]** .20 = 14.628 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.428 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 9.40 TOTAL AREA(ACRES) = 3.55 PEAK FLOW RATE(CFS) = 9.40 **************************************************************************** FLOW PROCESS FROM NODE 191.05 TO NODE 191.04 IS CODE = 6 - ------------------------------------------------------------------------- »»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1267.70 DOWNSTREAM ELEVATION = 1255.90 STREET LENGTH(FEET) = 840.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .480 r)UTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 15.29 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) = .84 HALFSTREET FLOODWIDTH(FEET) = 4.46 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.66 PRODUCT OF DEPTH&VELOCITY = 5.58 STREETFLOW TRAVELTIME(MIN) = 2.10 TC(MIN) = 16.73 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.163 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 4.88 SUBAREA RUNOFF(CFS) = 11.76 EFFECTIVE AREA(ACRES) = 8.43 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 8.43 PEAK FLOW RATE(CFS) = 20.32 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .95 HALFSTREET FLOODWIDTH(FEET) = 4.88 FLOW VELOCITY(FEET/SEC.) = 7.23 DEPTH*VELOCITY = 6.86 FLOW PROCESS FROM NODE 191.04 TO NODE 191.04 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) = 16.73 RAINFALL INTENSITY (INCH./HOUR) = 3.16 EFFECTIVE STREAM AREA(ACRES) = 8.43 TOTAL STREAM AREA(ACRES) = 8.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 20.32 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 132.88 15.25 3.343 .44 44.48 2 20.32 16.73 3.163 .48 8.43 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 152.66 52.16 2 144.95 52.91 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 152.66 TIME(MINUTES) = 15.254 EFFECTIVE AREA(ACRES) = 52.16 TOTAL AREA(ACRES) = 59.60 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 59.60 EFFECTIVE AREA(ACRES) = 52.16 EAK FLOW RATE(CFS) = 152.66 I I'm t 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 ************************** * EAST VILLAGE HYDROLOGY, LINE B * Q 25 YR * V.N./J.M., JN 3834-020, 11/23/1988 ************************************************************************** FILE NAME: A:EVLINEB.DAT TIME/DATE OF STUDY: 13: 2 11/23/1988 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: TORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 108.05 TO NODE 109.00 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 = 550.00 UPSTREAM ELEVATION = 1305.50 DOWNSTREAM ELEVATION = 1292.00 ELEVATION DIFFERENCE = 13.50 TC = .389*[( 550.00** 3.00)/( 13.50)]** .20 = 10.188 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.338 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 7.70 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 7.70 **************************************************************************** FLOW PROCESS FROM NODE 108.05 TO NODE 109.00 IS CODE = 1 • ------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 10.19 RAINFALL INTENSITY (INCH./HOUR) = 3.34 EFFECTIVE STREAM AREA(ACRES) = 3.00 TOTAL STREAM AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 7.70 **************************************************************************** FLOW PROCESS FROM NODE 108.03 TO NODE 109.00 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 = 850.00 UPSTREAM ELEVATION = 1297.40 DOWNSTREAM ELEVATION = 1292.00 ELEVATION DIFFERENCE = 5.40 TC = .389*[( 850.00** 3.00)/( 5.40)]** .20 = 15.890 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.557 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 7.27 TOTAL AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) = 7.27 **************************************************************************** FLOW PROCESS FROM NODE 108.03 TO NODE 109.00 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) = 15.89 RAINFALL INTENSITY (INCH./HOUR) = 2.56 EFFECTIVE STREAM AREA(ACRES) = 3.90 TOTAL STREAM AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 7.27 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) -------------------------------------------------------------- AREA(ACRES) 1 7.70 10.19 3.338 .49 3.00 2 7.27 15.89 2.557 .49 3.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 14.12 5.50 2 12.87 6.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 14.12 TIME(MINUTES) = 10.188 EFFECTIVE AREA(ACRES) = 5.50 'OTAL AREA(ACRES) = 6.90 **************************************************************************** FLOW PROCESS FROM NODE 109.00 TO NODE 181.05 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< -------------- nEPTH OF FLOW IN 21.0 INCH PIPE IS 13.7 INCHES IPEFLOW VELOCITY(FEET/SEC.) = 8.5 UPSTREAM NODE ELEVATION = 1292.00 DOWNSTREAM NODE ELEVATION = 1278.30 FLOWLENGTH(FEET) = 950.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 14.12 TRAVEL TIME(MIN.) = 1.87 TC(MIN.) = 12.05 **************************************************************************** FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.05 RAINFALL INTENSITY (INCH./HOUR) = 3.02 EFFECTIVE STREAM AREA(ACRES) = 5.50 TOTAL STREAM AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.12 **************************************************************************** FLOW PROCESS FROM NODE 181.02 TO NODE 109.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------- EVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 5-7 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 780.00 UPSTREAM ELEVATION = 1300.00 DOWNSTREAM ELEVATION = 1294.00 ELEVATION DIFFERENCE = 6.00 TC = .389*[( 780.00** 3.00)/( 6.00)]** .20 = 14.777 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.671 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 4.13 TOTAL AREA(ACRES) = 2.10 PEAK FLOW RATE(CFS) = 4.13 **************************************************************************** FLOW PROCESS FROM NODE 109.10 TO NODE 181.05 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ------------------------- UPSTREAM ELEVATION = 1293.20 DOWNSTREAM ELEVATION = 1278.30 STREET LENGTH(FEET) = 930.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 18.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) _ .240 `UTSIDE STREET CROSSFALL(DECIMAL) _ .180 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5.68 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) _ .53 HALFSTREET FLOODWIDTH(FEET) = 3.57 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.23 PRODUCT OF DEPTH&VELOCITY = 2.77 STREETFLOW TRAVELTIME(MIN) = 2.97 TC(MIN) = 17.74 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.393 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 1.81 SUBAREA RUNOFF(CFS) = 3.11 EFFECTIVE AREA(ACRES) = 3.91 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 3.91 PEAK FLOW RATE(CFS) = 6.71 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .57 HALFSTREET FLOODWIDTH(FEET) = 3.79 FLOW VELOCITY(FEET/SEC.) = 5.47 DEPTH*VELOCITY = 3.10 **************************************************************************** FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 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) = 17.74 RAINFALL INTENSITY (INCH./HOUR) = 2.39 FFECTIVE STREAM AREA(ACRES) = 3.91 TOTAL STREAM AREA(ACRES) = 3.91 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.71 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 14.12 12.05 3.018 .49 5.50 2 6.71 17.74 2.393 .49 3.91 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 20.18 8.16 2 17.35 9.41 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 20.18 TIME(MINUTES) = 12.053 EFFECTIVE AREA(ACRES) = 8.16 TOTAL AREA(ACRES) = 10.81 **************************************************************************** "LOW PROCESS FROM NODE 181.05 TO NODE 181.05 IS CODE = 1 - ------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.05 RAINFALL INTENSITY (INCH./HOUR) = 3.02 EFFECTIVE STREAM AREA(ACRES) = 8.16 TOTAL STREAM AREA(ACRES) = 10.81 DEAK FLOW RATE(CFS) AT CONFLUENCE = 20.18 FLOW PROCESS FROM NODE 181.00 TO NODE 181.08 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 = 1000.00 UPSTREAM ELEVATION = 1296.50 DOWNSTREAM ELEVATION = 1280.30 ELEVATION DIFFERENCE = 16.20 TC = .389*[( 1000.00** 3.00)/( 16.20)]** .20 = 14.062 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.751 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 14.38 TOTAL AREA(ACRES) = 7.05 PEAK FLOW RATE(CFS) = 14.38 **************************************************************************** FLOW PROCESS FROM NODE 181.08 TO NODE 181.05 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< PSTREAM ELEVATION = 1280.30 DOWNSTREAM ELEVATION = 1278.30 STREET LENGTH(FEET) = 180.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 14.53 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) = .86 HALFSTREET FLOODWIDTH(FEET) = 4.55 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.04 PRODUCT OF DEPTH&VELOCITY = 5.21 STREETFLOW TRAVELTIME(MIN) = .50 TC(MIN) = 14.56 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.694 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = .15 SUBAREA RUNOFF(CFS) _ .30 "FFECTIVE AREA(ACRES) = 7.20 .VERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) = 14.38 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .85 HALFSTREET FLOODWIDTH(FEET) = 4.51 FLOW VELOCITY(FEET/SEC.) = 6.12 DEPTH*VELOCITY = 5.20 FLOW PROCESS FROM NODE 181.05 TO NODE 181.05 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) = 14.56 RAINFALL INTENSITY (INCH./HOUR) = 2.69 EFFECTIVE STREAM AREA(ACRES) = 7.20 TOTAL STREAM AREA(ACRES) = 7.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.38 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 20.18 12.05 3.018 .49 8.16 2 14.38 14.56 2.694 .49 7.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 33.83 14.12 2 31.98 15.36 '.OMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: EAK FLOW RATE(CFS) = 33.83 TIME(MINUTES) = 12.053 EFFECTIVE AREA(ACRES) = 14.12 TOTAL AREA(ACRES) = 18.01 FLOW PROCESS FROM NODE 181.05 TO NODE 181.06 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 36.0 INCH PIPE IS 27.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.8 UPSTREAM NODE ELEVATION = 1278.30 DOWNSTREAM NODE ELEVATION = 1277.90 FLOWLENGTH(FEET) = 130.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 33.83 TRAVEL TIME(MIN.) _ .37 TC(MIN.) = 12.43 FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ^ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: IME OF CONCENTRATION(MINUTES) = 12.43 RAINFALL INTENSITY (INCH./HOUR) = 2.96 EFFECTIVE STREAM AREA(ACRES) = 14.12 TOTAL STREAM AREA(ACRES) = 18.01 PEAK FLOW RATE(CFS) AT CONFLUENCE = 33.83 **************************************************************************** FLOW PROCESS FROM NODE 181.01 TO NODE 181.06 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 = 1000.00 UPSTREAM ELEVATION = 1296.50 DOWNSTREAM ELEVATION = 1277.90 ELEVATION DIFFERENCE = 18.60 TC = .389*[( 1000.00** 3.00)/( 18.60)]** .20 = 13.679 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.797 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 19.67 TOTAL AREA(ACRES) = 9.45 PEAK FLOW RATE(CFS) = 19.67 **************************************************************************** FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 13.68 RAINFALL INTENSITY (INCH./HOUR) = 2.80 EFFECTIVE STREAM AREA(ACRES) = 9.45 OTAL STREAM AREA(ACRES) = 9.45 PEAK FLOW RATE(CFS) AT CONFLUENCE = 19.67 **************************************************************************** FLOW PROCESS FROM NODE 181.04 TO NODE 181.07 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 = 1298.40 DOWNSTREAM ELEVATION = 1279.00 ELEVATION DIFFERENCE = 19.40 TC = .304*[( 1000.00** 3.00)/( 19.40)]** .20 = 10.600 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.260 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 3.93 TOTAL AREA(ACRES) = 1.38 PEAK FLOW RATE(CFS) = 3.93 FLOW PROCESS FROM NODE 181.07 TO NODE 181.06 IS CODE = 6 - •------------------------------------------------------------------------- »»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ----------------------- UPSTREAM ELEVATION = 1279.00 DOWNSTREAM ELEVATION = 1277.90 STREET LENGTH(FEET) = 370.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) _ .240 OUTSIDE STREET CROSSFALL(DECIMAL) _ .420 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.51 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) = 3.23 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.85 PRODUCT OF DEPTH&VELOCITY = 2.04 STREETFLOW TRAVELTIME(MIN) = 2.16 TC(MIN) = 12.76 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.916 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .46 SUBAREA RUNOFF(CFS) = 1.17 EFFECTIVE AREA(ACRES) = 1.84 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.84 PEAK FLOW RATE(CFS) = 4.67 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .72 HALFSTREET FLOODWIDTH(FEET) = 3.23 FLOW VELOCITY(FEET/SEC.) = 2.95 DEPTH*VELOCITY = 2.11 FLOW PROCESS FROM NODE 181.06 TO NODE 181.06 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.76 RAINFALL INTENSITY (INCH./HOUR) = 2.92 EFFECTIVE STREAM AREA(ACRES) = 1.84 TOTAL STREAM AREA(ACRES) = 1.84 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.67 CONFLUENCE INFORMATION: RESULTS: STREAM STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 33.83 12.43 2.963 .49 14.12 2 19.67 13.68 2.797 .49 9.45 3 4.67 12.76 2.916 .10 1.84 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER - •------------------------------------------ Q(CFS) AREA(ACRES) 1 57.59 24.49 2 55.70 25.41 3 57.15 24.77 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 57.59 TIME(MINUTES) = 12.427 EFFECTIVE AREA(ACRES) = 24.49 TOTAL AREA(ACRES) = 29.30 FLOW PROCESS FROM NODE 181.06 TO NODE 190.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «<<< DEPTH OF FLOW IN 33.0 INCH PIPE IS 26.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.5 UPSTREAM NODE ELEVATION = 1277.90 DOWNSTREAM NODE ELEVATION = 1269.00 FLOWLENGTH(FEET) = 660.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 57.59 TRAVEL TIME(MIN.) = .96 TC(MIN.) = 13.39 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.39 RAINFALL INTENSITY (INCH./HOUR) = 2.83 EFFECTIVE STREAM AREA(ACRES) = 24.49 TOTAL STREAM AREA(ACRES) = 29.30 'BEAK FLOW RATE(CFS) AT CONFLUENCE = 57.59 **************************************************************************** FLOW PROCESS FROM NODE 191.11 TO NODE 191.12 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 = 1281.50 DOWNSTREAM ELEVATION = 1272.70 ELEVATION DIFFERENCE = 8.80 TC = .304*[( 1000.00** 3.00)/( 8.80)]** .20 = 12.416 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.965 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 3.28 TOTAL AREA(ACRES) = 1.27 PEAK FLOW RATE(CFS) = 3.28 **************************************************************************** FLOW PROCESS FROM NODE 191.12 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< .PSTREAM ELEVATION = 1272.70 DOWNSTREAM ELEVATION = 1266.40 STREET LENGTH(FEET) = 320.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.68 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .40 HALFSTREET FLOODWIDTH(FEET) = 2.77 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.19 PRODUCT OF DEPTH&VELOCITY = 2.07 STREETFLOW TRAVELTIME(MIN) = 1.03 TC(MIN) = 13.44 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.827 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .33 SUBAREA RUNOFF(CFS) _ .81 EFFECTIVE AREA(ACRES) = 1.60 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) = 3.93 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .41 HALFSTREET FLOODWIDTH(FEET) = 2.82 FLOW VELOCITY(FEET/SEC.) = 5.29 DEPTH*VELOCITY = 2.18 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ^.ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: IME OF CONCENTRATION(MINUTES) = 13.44 RAINFALL INTENSITY (INCH./HOUR) = 2.83 EFFECTIVE STREAM AREA(ACRES) = 1.60 TOTAL STREAM AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.93 **************************************************************************** FLOW PROCESS FROM NODE 191.00 TO NODE 191.13 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 = 1000.00 UPSTREAM ELEVATION = 1280.90 DOWNSTREAM ELEVATION = 1267.80 ELEVATION DIFFERENCE = 13.10 TC = .389*[( 1000.00** 3.00)/( 13.10)]** .20 = 14.672 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.682 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 11.11 TOTAL AREA(ACRES) = 5.62 PEAK FLOW RATE(CFS) ************************************************************************* FLOW PROCESS FROM NODE 191.13 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1267.80 DOWNSTREAM ELEVATION = 1266.40 STREET LENGTH(FEET) = 300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 ISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 14.02 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) = 1.02 HALFSTREET FLOODWIDTH(FEET) = 5.16 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.41 PRODUCT OF DEPTH&VELOCITY = 4.50 STREETFLOW TRAVELTIME(MIN) = 1.13 TC(MIN) = 15.81 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.565 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 3.10 SUBAREA RUNOFF(CFS) = 5.80 EFFECTIVE AREA(ACRES) = 8.72 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 8.72 PEAK FLOW RATE(CFS) = 16.32 END OF SUBAREA STREETFLOW HYDRAULICS: nEPTH(FEET) = 1.08 HALFSTREET FLOODWIDTH(FEET) = 5.40 LOW VELOCITY(FEET/SEC.) = 4.67 DEPTH*VELOCITY = 5.05 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 15.81 RAINFALL INTENSITY (INCH./HOUR) = 2.56 EFFECTIVE STREAM AREA(ACRES) = 8.72 TOTAL STREAM AREA(ACRES) = 8.72 PEAK FLOW RATE(CFS) AT CONFLUENCE = 16.32 **************************************************************************** FLOW PROCESS FROM NODE 300.10 TO NODE 180.10 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 = 1291.00 'lOWNSTREAM ELEVATION = 1281.30 ..LEVATION DIFFERENCE = 9.70 TC = .304*[( 1000.00** 3.00)/( 9.70)]** .20 = 12.176 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.999 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 3.13 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 3.13 FLOW PROCESS FROM NODE 180.10 TO NODE 190.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1281.30 DOWNSTREAM ELEVATION = 1268.50 STREET LENGTH(FEET) = 930.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 20.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .240 OUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.86 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .45 HALFSTREET FLOODWIDTH(FEET) = 2.96 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.55 PRODUCT OF DEPTH&VELOCITY = 2.04 STREETFLOW TRAVELTIME(MIN) = 3.41 TC(MIN) = 15.59 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.587 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 GUBAREA AREA(ACRES) = .65 SUBAREA RUNOFF(CFS) = 1.46 FFECTIVE AREA(ACRES) = 1.85 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 1.85 PEAK FLOW RATE(CFS) = 4.15 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .46 HALFSTREET FLOODWIDTH(FEET) = 3.01 FLOW VELOCITY(FEET/SEC.) = 4.68 DEPTH*VELOCITY = 2.15 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 190.00 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) = 15.59 RAINFALL INTENSITY (INCH./HOUR) = 2.59 EFFECTIVE STREAM AREA(ACRES) = 1.85 TOTAL STREAM AREA(ACRES) = 1.85 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.15 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 57.59 13.39 2.834 .46 24.49 2 3.93 13.44 2.827 .10 1.60 3 16.32 15.81 2.565 .49 8.72 4 4.15 15.59 2.587 .10 1.85 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 81.04 35.06 2 80.90 35.11 3 75.06 36.66 4 75.60 36.54 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 81.04 TIME(MINUTES) = 13.386 EFFECTIVE AREA(ACRES) = 35.06 TOTAL AREA(ACRES) = 41.47 **************************************************************************** FLOW PROCESS FROM NODE 190.00 TO NODE 195.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ------------ DEPTH OF FLOW IN 42.0 INCH PIPE IS 33.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1266.40 DOWNSTREAM NODE ELEVATION = 1260.00 FLOWLENGTH(FEET) = 910.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 81.04 TRAVEL TIME(MIN.) = 1.56 TC(MIN.) = 14.94 LOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.94 RAINFALL INTENSITY (INCH./HOUR) = 2.65 EFFECTIVE STREAM AREA(ACRES) = 35.06 TOTAL STREAM AREA(ACRES) = 41.47 PEAK FLOW RATE(CFS) AT CONFLUENCE = 81.04 **************************************************************************** FLOW PROCESS FROM NODE 191.01 TO NODE 195.00 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 = 1000.00 UPSTREAM ELEVATION = 1280.50 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 20.50 TC = .389*[( 1000.00** 3.00)/( 20.50)]** .20 = 13.415 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.830 "OIL CLASSIFICATION IS "A" _ESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 11.12 TOTAL AREA(ACRES) = 5.27 PEAK FLOW RATE(CFS) = 11.12 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 13.42 RAINFALL INTENSITY (INCH./HOUR) = 2.83 EFFECTIVE STREAM AREA(ACRES) = 5.27 TOTAL STREAM AREA(ACRES) = 5.27 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.12 **************************************************************************** FLOW PROCESS FROM NODE 192.00 TO NODE 195.00 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 = 660.00 UPSTREAM ELEVATION = 1269.40 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 9.40 TC = .389*[( 660.00** 3.00)/( 9.40)]** .20 = 12.219 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.993 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, FM(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 10.00 'T'OTAL AREA(ACRES) = 4.43 PEAK FLOW RATE(CFS) = 10.00 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 195.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ---------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.22 RAINFALL INTENSITY (INCH./HOUR) = 2.99 EFFECTIVE STREAM AREA(ACRES) = 4.43 TOTAL STREAM AREA(ACRES) = 4.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.00 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 81.04 14.94 2.653 .43 35.06 2 11.12 13.42 2.830 .49 5.27 3 10.00 12.22 2.993 .49 4.43 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: -TREAM CONFLUENCE EFFECTIVE UMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 99.97 44.76 2 99.04 41.18 3 97.26 37.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 99.97 TIME(MINUTES) = 14.942 EFFECTIVE AREA(ACRES) = 44.76 TOTAL AREA(ACRES) = 51.17 **************************************************************************** FLOW PROCESS FROM NODE 195.00 TO NODE 191.04 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 45.0 INCH PIPE IS 34.2 INCHES PIPEFLOW VELOCITY(F�ET/SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1260.00 DOWNSTREAM NODE ELEVATION = 1255.90 FLOWLENGTH(FEET) = 490.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 99.97 TRAVEL TIME(MIN.) _ .74 TC(MIN.) = 15.68 **************************************************************************** FLOW PROCESS FROM NODE 191.04 TO NODE 191.04 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.68 RAINFALL INTENSITY (INCH./HOUR) = 2.58 7FFECTIVE STREAM AREA(ACRES) = 44.76 OTAL STREAM AREA(ACRES) = 51.17 PEAK FLOW RATE(CFS) AT CONFLUENCE = 99.97 **************************************************************************** FLOW PROCESS FROM NODE 191.02 TO NODE 191.05 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 = 1000.00 UPSTREAM ELEVATION = 1281.00 DOWNSTREAM ELEVATION = 1267.70 ELEVATION DIFFERENCE = 13.30 TC = .389*[( 1000.00** 3.00)/( 13.30)]** .20 = 14.628 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.687 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA RUNOFF(CFS) = 7.03 TOTAL AREA(ACRES) = 3.55 PEAK FLOW RATE(CFS) = 7.03 **************************************************************************** FLOW PROCESS FROM NODE 191.05 TO NODE 191.04 IS CODE = 6 ------------------------------------------------------------------------- »»COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1267.70 DOWNSTREAM ELEVATION = 1255.90 STREET LENGTH(FEET) = 840.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 24.00 INTERIOR STREET CROSSFALL(DECIMAL) = .480 lUTSIDE STREET CROSSFALL(DECIMAL) = .260 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 11.39 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) = .73 HALFSTREET FLOODWIDTH(FEET) = 4.04 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.22 PRODUCT OF DEPTH&VELOCITY = 4.53 STREETFLOW TRAVELTIME(MIN) = 2.25 TC(MIN) = 16.88 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.466 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 5-7 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .4850 SUBAREA AREA(ACRES) = 4.88 SUBAREA RUNOFF(CFS) = 8.70 EFFECTIVE AREA(ACRES) = 8.43 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 8.43 PEAK FLOW RATE(CFS) = 15.03 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .83 HALFSTREET FLOODWIDTH(FEET) = 4.41 FLOW VELOCITY(FEET/SEC.) = 6.70 DEPTH*VELOCITY = 5.54 ************************************************************************* FLOW PROCESS FROM NODE 191.04 TO NODE 191.04 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) = 16.88 RAINFALL INTENSITY (INCH./HOUR) = 2.47 EFFECTIVE STREAM AREA(ACRES) = 8.43 TOTAL STREAM AREA(ACRES) = 8.43 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.03 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 99.97 15.68 2.577 .44 44.76 2 15.03 16.88 2.466 .48 8.43 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 114.71 52.59 2 109.78 53.19 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 114.71 TIME(MINUTES) = 15.679 EFFECTIVE AREA(ACRES) = 52.59 TOTAL AREA(ACRES) = 59.60 ------------- END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 59.60 EFFECTIVE AREA(ACRES) = 52.59 EAK FLOW RATE(CFS) = 114.71 END OF RATIONAL METHOD ANALYSIS END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .69 HALFSTREET FLOODWIDTH(FEET) = 16.81 FLOW VELOCITY(FEET/SEC.) = 3.45 DEPTH*VELOCITY = 2.39 FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.24 RAINFALL INTENSITY (INCH./HOUR) = 3.22 EFFECTIVE STREAM AREA(ACRES) = 5.60 TOTAL STREAM AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.22 **************************************************************************** FLOW PROCESS FROM NODE 172.20 TO NODE 172.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1282.00 ELEVATION DIFFERENCE = 13.00 TC = .304*[( 650.00** 3.00)/( 13.00)]** .20 = 8.868 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.629 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 21.62 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 21.62 **************************************************************************** FLOW PROCESS FROM NODE 172.30 TO NODE 171.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------------- UPSTREAM ELEVATION = 1282.00 DOWNSTREAM ELEVATION = 1268.00 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 26.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 14.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 24.30 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) = .73 HALFSTREET FLOODWIDTH(FEET) = 18.56 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.83 PRODUCT OF DEPTH&VELOCITY = 3.52 STREETFLOW TRAVELTIME(MIN) = 3.45 TC(MIN) = 12.32 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.800 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 5.33 EFFECTIVE AREA(ACRES) = 6.90 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) = 23.00 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .71 HALFSTREET FLOODWIDTH(FEET) = 17.69 FLOW VELOCITY(FEET/SEC.) = 4.87 DEPTH*VELOCITY = 3.47 **************************************************************************** FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ---------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.32 RAINFALL INTENSITY (INCH./HOUR) = 3.80 EFFECTIVE STREAM AREA(ACRES) = 6.90 TOTAL STREAM AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.00 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 80.56 14.57 3.437 .58 30.60 2 15.22 16.24 3.220 .20 5.60 3 23.00 12.32 3.800 .10 6.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 115.93 42.53 2 109.06 43.10 3 113.57 37.04 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 115.93 TIME(MINUTES) = 14.567 EFFECTIVE AREA(ACRES) = 42.53 TOTAL AREA(ACRES) = 45.00 **************************************************************************** FLOW PROCESS FROM NODE 171.00 TO NODE 197.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 48.0 INCH PIPE IS 37.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1268.00 DOWNSTREAM NODE ELEVATION = 1261.50 FLOWLENGTH(FEET) = 850.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 115.93 TRAVEL TIME(MIN.) = 1.28 TC(MIN.) = 15.85 **************************************************************************** FLOW PROCESS FROM NODE 197.10 TO NODE 197.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.268 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 9.99 EFFECTIVE AREA(ACRES) = 46.03 AVERAGED Fm(INCH/HR) _ .431 TOTAL AREA(ACRES) = 48.50 PEAK FLOW RATE(CFS) = 117.52 TC(MIN) = 15.85 **************************************************************************** FLOW PROCESS FROM NODE 197.00 TO NODE 198.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ------------------------------------- DEPTH OF FLOW IN 42.0 INCH PIPE IS 31.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.2 UPSTREAM NODE ELEVATION = 1261.50 DOWNSTREAM NODE ELEVATION = 1257.50 FLOWLENGTH(FEET) = 230.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 117.52 TRAVEL TIME(MIN.) _ .25 TC(MIN.) = 16.10 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.10 RAINFALL INTENSITY (INCH./HOUR) = 3.24 EFFECTIVE STREAM AREA(ACRES) = 46.03 TOTAL STREAM AREA(ACRES) = 48.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 117.52 **************************************************************************** FLOW PROCESS FROM NODE 198.20 TO NODE 198.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------------------- DEVELOPMENT IS CONDOMINIUMS TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1274.00 DOWNSTREAM ELEVATION = 1268.00 ELEVATION DIFFERENCE = 6.00 TC = .360*[( 1000.00** 3.00)/( 6.00)]** .20 = 15.873 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.264 SOIL CLASSIFICATION IS "A" CONDOMINIUMS SUBAREA LOSS RATE, Fm(INCH/HR) _ .3395 SUBAREA RUNOFF(CFS) = 5.00 TOTAL AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) = 5.00 FLOW PROCESS FROM NODE 198.10 TO NODE 198.30 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------------------- UPSTREAM ELEVATION = 1268.00 DOWNSTREAM ELEVATION = 1265.00 STREET LENGTH(FEET) = 375.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 22.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 6.34 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .51 HALFSTREET FLOODWIDTH(FEET) = 9.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.09 PRODUCT OF DEPTH&VELOCITY = 1.57 STREETFLOW TRAVELTIME(MIN) = 2.02 TC(MIN) = 17.90 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.038 SOIL CLASSIFICATION IS "A" CONDOMINIUMS SUBAREA LOSS RATE, Fm(INCH/HR) _ .3395 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.67 EFFECTIVE AREA(ACRES) = 3.00 AVERAGED Fm(INCH/HR) _ .339 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 7.29 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .54 HALFSTREET FLOODWIDTH(FEET) = 11.03 FLOW VELOCITY(FEET/SEC.) = 3.08 DEPTH*VELOCITY = 1.66 **************************************************************************** FLOW PROCESS FROM NODE 198.40 TO NODE 198.30 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.038 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 3.98 EFFECTIVE AREA(ACRES) = 4.80 AVERAGED Fm(INCH/HR) _ .430 TOTAL AREA(ACRES) = 4.80 PEAK FLOW RATE(CFS) = 11.26 TC (MIN) = 17.90 **************************************************************************** FLOW PROCESS FROM NODE 198.30 TO NODE 198.00 IS CODE = 6 --------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1265.00 DOWNSTREAM ELEVATION = 1257.50 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 22.00 INTERIOR STREET CROSSFALL(DECIMAL) _ .020 OUTSIDE STREET CROSSFALL(DECIMAL) _ .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 13.21 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .64 HALFSTREET FLOODWIDTH(FEET) = 15.84 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.61 PRODUCT OF DEPTH&VELOCITY = 2.29 STREETFLOW TRAVELTIME(MIN) = 3.46 TC(MIN) = 21.36 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.732 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 3.87 EFFECTIVE AREA(ACRES) = 6.80 AVERAGED Fm(INCH/HR) _ .475 TOTAL AREA(ACRES) = 6.80 PEAK FLOW RATE(CFS) = 13.81 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .65 HALFSTREET FLOODWIDTH(FEET) = 16.53 FLOW VELOCITY(FEET/SEC.) = 3.56 DEPTH*VELOCITY = 2.31 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 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) = 21.36 RAINFALL INTENSITY (INCH./HOUR) = 2.73 EFFECTIVE STREAM AREA(ACRES) = 6.80 TOTAL STREAM AREA(ACRES) = 6.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.81 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) -------------------------------------------------------------- AREA(ACRES) 1 117.52 16.10 3.237 .43 46.03 2 13.81 21.36 2.732 .48 6.80 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 130.26 51.15 2 110.17 52.83 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 130.26 TIME(MINUTES) = 16.097 EFFECTIVE AREA(ACRES) _ .51.15 TOTAL AREA(ACRES) = 55.30 --------------------------------- END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 55.30 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 2.96 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .52 HALFSTREET FLOODWIDTH(FEET) = 9.97 AVERAGE FLOW VELOCITY(FEET/SEC.) = 1.39 PRODUCT OF DEPTH&VELOCITY = .72 STREETFLOW TRAVELTIME(MIN) = 7.82 TC(MIN) = 21.45 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.136 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = .80 SUBAREA RUNOFF(CFS) = 1.12 EFFECTIVE AREA(ACRES) = 2.00 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 2.00 PEAK FLOW RATE(CFS) = 2.80 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .52 HALFSTREET FLOODWIDTH(FEET) = 9.97 FLOW VELOCITY(FEET/SEC.) = 1.31 DEPTH*VELOCITY = .68 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 21.45 RAINFALL INTENSITY (INCH./HOUR) = 2.14 EFFECTIVE STREAM AREA(ACRES) = 2.00 TOTAL STREAM AREA(ACRES) = 2.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.80 **************************************************************************** FLOW PROCESS FROM NODE 140.70 TO NODE 141.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1208.00 DOWNSTREAM ELEVATION = 1206.00 ELEVATION DIFFERENCE = 2.00 TC = .412*[( 450.00** 3.00)/( 2.00)]** .20 = 14.016 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.757 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.76 TOTAL AREA(ACRES) = .90 PEAK FLOW RATE(CFS) = 1.76 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 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) = 14.02 RAINFALL INTENSITY (INCH./HOUR) = 2.76 EFFECTIVE STREAM AREA(ACRES) = .90 TOTAL STREAM AREA(ACRES) = .90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.76 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY NUMBER ---------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) 1 13.91 15.92 2.553 2 9.30 24.35 1.979 3 2.80 21.45 2.136 4 1.76 14.02 2.757 FM EFFECTIVE (IN/HR) AREA(ACRES) --------------------- .58 7.80 .58 6.50 .58 2.00 .58 .90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 26.73 14.44 2 22.81 17.20 3 24.13 16.43 4 26.16 12.81 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 26.73 TIME(MINUTES) = 15.925 EFFECTIVE AREA(ACRES) = 14.44 TOTAL AREA(ACRES) = 17.20 41*************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 140.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < DEPTH OF FLOW IN 33.0 INCH PIPE IS 24.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.7 UPSTREAM NODE ELEVATION = 1206.50 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 120.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 26.73 TRAVEL TIME(MIN.) = .35 TC(MIN.) = 16.28 **************************************************************************** FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 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) = 16.28 RAINFALL INTENSITY (INCH./HOUR) = 2.52 EFFECTIVE STREAM AREA(ACRES) = 14.44 TOTAL STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.73 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 26.73 16.28 2.520 .58 14.44 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 26.73 14.44 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 26.73 TIME(MINUTES) = 16.277 EFFECTIVE AREA(ACRES) = 14.44 TOTAL AREA(ACRES) = 17.20 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 17.20 EFFECTIVE AREA(ACRES) = 14.44 PEAK FLOW RATE(CFS) = 26.73 END OF RATIONAL METHOD ANALYSIS Aj 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 ************************** DESCRIPTION OF STUDY ************************** * FOOTHILL DRAIN HYDROLOGY LINE B & LATERALS "C", "E", "G" & "H" * Q 100 YR * V.N./J.M., JN 3834-020, 12/2/1988 ************************************************************************** FILE NAME: EVLINEB.DAT TIME/DATE OF STUDY: 8:42 1/ 2/1988 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< ----------------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.25 RAIN INTENSITY(INCH/HOUR) = 3.34 EFFECTIVE AREA(ACRES) = 52.16 TOTAL AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) = 152.66 AVERAGED LOSS RATE, Fm(IN/HR) = .446 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.25 RAINFALL INTENSITY (INCH./HOUR) = 3.34 EFFECTIVE STREAM AREA(ACRES) = 52.16 TOTAL STREAM AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 152.66 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.10 RAIN INTENSITY(INCH/HOUR) = 3.24 EFFECTIVE AREA(ACRES) = 51.15 TOTAL AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) = 130.26 AVERAGED LOSS RATE, Fm(IN/HR)' = .436 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 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) = 16.10 RAINFALL INTENSITY (INCH./HOUR) = 3.24 EFFECTIVE STREAM AREA(ACRES) = 51.15 TOTAL STREAM AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 130.26 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 152.66 15.25 3.344 .45 52.16 2 130.26 16.10 3.237 .44 51.15 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 280.77 100.62 2 277.30 103.31 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 280.77 TIME(MINUTES) = 15.250 EFFECTIVE AREA(ACRES) = 100.62 TOTAL AREA(ACRES) = 114.90 FLOW PROCESS FROM NODE 198.00 TO NODE 80.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA«« < >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< --------------------------------------------- DEPTH OF FLOW IN 69.0 INCH PIPE IS 54.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.7 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 280.77 TRAVEL TIME(MIN.) = .75 TC(MIN.) = 16.00 FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< --------------------------------------- 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.249 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 14.40 EFFECTIVE AREA(ACRES) = 106.62 AVERAGED Fm(INCH/HR) _ .449 TOTAL AREA(ACRES) = 120.90 PEAK FLOW RATE(CFS) = 280.77 TC(MIN) = 16.00 FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 »» >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 57.0 INCH PIPE IS 46.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.2 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 980.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 280.77 TRAVEL TIME(MIN.) = .90 TC(MIN.) = 16.90 FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.144 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 18.68 EFFECTIVE AREA(ACRES) = 114.72 AVERAGED Fm(INCH/HR) _ .458 TOTAL AREA(ACRES) = 129.00 PEAK FLOW RATE(CFS) = 280.77 TC(MIN) = 16.90 FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.144 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, F1n(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 33.44 EFFECTIVE AREA(ACRES) = 129.22 AVERAGED Fm(INCH/HR) _ .472 TOTAL AREA(ACRES) = 143.50 PEAK FLOW RATE(CFS) = 310.74 TC(MIN) = 16.90 FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ------------------------ DEPTH OF FLOW IN 60.0 INCH PIPE IS 44.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.9 UPSTREAM NODE ELEVATION = 1238.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 310.74 TRAVEL TIME(MIN.) = .59 TC(MIN.) = 17.48 FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.081 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 23.61 EFFECTIVE AREA(ACRES) = 139.72 AVERAGED Fm(INCH/HR) _ .481 TOTAL AREA(ACRES) = 154.00 PEAK FLOW RATE(CFS) = 326.95 TC(MIN) = 17.48 FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 8 -------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.081 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 12.70 SUBAREA RUNOFF(CFS) = 28.56 EFFECTIVE AREA(ACRES) = 152.42 AVERAGED Fm(INCH/HR) _ .489 TOTAL AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) = 355.51 TC(MIN) = 17.48 FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< - --------------------------- DEPTH OF FLOW IN 66.0 INCH PIPE IS 50.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.2 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 355.51 TRAVEL TIME(MIN.) = .44 TC(MIN.) = 17.92 FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 ---------------------------------------------------------------------------- »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.92 RAINFALL INTENSITY (INCH./HOUR) = 3.04 EFFECTIVE STREAM AREA(ACRES) = 152.42 TOTAL STREAM AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 355.51 **************************************************************************** FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ---------------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1226.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 6.70 TC = .412*[( 400.00** 3.00)/( 6.70)]** .20 = 10.255 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.243 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 8.57 TOTAL AREA(ACRES) = 2.60 PEAK FLOW RATE(CFS) = 8.57 ************************************************************************** FLOW PROCESS FROM NODE 110.20 TO NODE 110.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 9.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.8 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 8.57 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 10.39 **************************************************************************** FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 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) = 10.39 RAINFALL INTENSITY (INCH./HOUR) = 4.21 EFFECTIVE STREAM AREA(ACRES) = 2.60 TOTAL STREAM AREA(ACRES) = 2.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.57 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 355.51 17.92 3.035 .49 152.42 2 8.57 10.39 4.210 .58 2.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 361.30 155.02 2 309.72 90.94 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 361.30 TIME(MINUTES) = 17.922 EFFECTIVE AREA(ACRES) = 155.02 TOTAL AREA(ACRES) = 169.30 FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.035 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 7.10 SUBAREA RUNOFF(CFS) = 15.68 EFFECTIVE AREA(ACRES) = 162.12 AVERAGED Fm(INCH/HR) _ .495 TOTAL AREA(ACRES) = 176.40 PEAK FLOW RATE(CFS) = 370.68 TC(MIN) = 17.92 FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< -------------------------------------- DEPTH OF FLOW IN 81.0 INCH PIPE IS 64.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.2 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH(FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 81.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 370.68 TRAVEL TIME(MIN.) _ .99 TC(MIN.) = 18.91 FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.939 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .60 SUBAREA RUNOFF(CFS) = 1.53 EFFECTIVE AREA(ACRES) = 162.72 AVERAGED Fm(INCH/HR) _ .493 TOTAL AREA(ACRES) = 177.00 PEAK FLOW RATE(CFS) = 370.68 TC(MIN) = 18.91 ************************************************************************** FLOW PROCESS FROM NODE 120.30 TO NODE 120.00 IS CODE = 8 -------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.939 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .50 SUBAREA RUNOFF(CFS) = 1.28 EFFECTIVE AREA(ACRES) = 163.22 AVERAGED Fm(INCH/HR) _ .492 TOTAL AREA(ACRES) = 177.50 PEAK FLOW RATE(CFS) = 370.68 TC(MIN) = 18.91 **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 18.91 RAINFALL INTENSITY (INCH./HOUR) = 2.94 EFFECTIVE STREAM AREA(ACRES) = 163.22 TOTAL STREAM AREA(ACRES) = 177.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 370.68 **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.36 RAIN INTENSITY(INCH/HOUR) = 3.47 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 89.05 AVERAGED LOSS RATE, Fm(IN/HR) _ .580 ***ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .58(INCHES/HOUR) **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) = 14.36 RAINFALL INTENSITY (INCH./HOUR) = 3.47 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 89.05 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 370.68 18.91 2.939 .49 163.22 2 89.05 14.36 3.467 .58 34.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 443.46 197.52 2 431.25 158.25 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 443.46 TIME(MINUTES) = 18.907 EFFECTIVE AREA(ACRES) = 197.52 TOTAL AREA(ACRES) = 212.00 FLOW PROCESS FROM NODE 120.00 TO NODE 140.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ----------------------------------- DEPTH OF FLOW IN 69.0 INCH PIPE IS 54.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 20.0 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 443.46 TRAVEL TIME(MIN.) = .50 TC(MIN.) = 19.41 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.41 RAINFALL INTENSITY (INCH./HOUR) = 2.89 EFFECTIVE STREAM AREA(ACRES) = 197.52 TOTAL STREAM AREA(ACRES) = 212.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 443.46 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 12.41 RAIN INTENSITY(INCH/HOUR) = 3.78 EFFECTIVE AREA(ACRES) = 19.77 TOTAL AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) = 62.16 AVERAGED LOSS RATE, Fm(IN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.41 RAINFALL INTENSITY (INCH./HOUR) = 3.78 EFFECTIVE STREAM AREA(ACRES) = 19.77 TOTAL STREAM AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 62.16 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< ----------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.25 RAIN INTENSITY(INCH/HOUR) = 3.22 EFFECTIVE AREA(ACRES) = 14.61 TOTAL AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) = 36.55 AVERAGED LOSS RATE, Fm(IN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 16.25 RAINFALL INTENSITY (INCH./HOUR) = 3.22 EFFECTIVE STREAM AREA(ACRES) = 14.61 TOTAL STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 36.55 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 443.46 19.41 2.894 .51 197.52 2 62.16 12.41 3.783 .58 19.77 3 36.55 16.25 3.219 .58 14.61 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 520.40 231.90 2 485.48 157.28 3 509.69 199.77 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 520.40 TIME(MINUTES) = 19.406 EFFECTIVE AREA(ACRES) = 231.90 TOTAL AREA(ACRES) = 254.20 FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 81.0 INCH PIPE IS 61.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.8 UPSTREAM NODE ELEVATION = 1206.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 620.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 81.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 520.40 TRAVEL TIME(MIN.) = .58 TC(MIN.) = 19.99 FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 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) = 19.99 RAINFALL INTENSITY (INCH./HOUR) = 2.84 EFFECTIVE STREAM AREA(ACRES) = 231.90 TOTAL STREAM AREA(ACRES) = 254.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 520.40 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) ------------------------------------------------------------ 1 520.40 19.99 2.843 .52 231.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 520.40 231.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 520.40 TIME(MINUTES) = 19.987 EFFECTIVE AREA(ACRES) = 231.90 TOTAL AREA(ACRES) = 254.20 -------------------- END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 254.20 EFFECTIVE AREA(ACRES) = 231.90 PEAK FLOW RATE(CFS) = 520.40 �Zti•2� END OF RATIONAL METHOD ANALYSIS I I I I I 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 ************************** DESCRIPTION OF STUDY ************************** * FOOTHILL DRAIN HYDROLOGY, LINE B & LATERALS "C", "E", "G" & "H" * Q 25 YR * V.N./J.M., JN 3834-020, 12/2/1988 ************************************************************************** FILE NAME: EVLINEB.DAT TIME/DATE OF STUDY: 9: 8 1/ 2/1988 ------------------------ 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< ------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.68 RAIN INTENSITY(INCH/HOUR) = 2.58 EFFECTIVE AREA(ACRES) = 52.59 TOTAL AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) = 114.71 AVERAGED LOSS RATE, Fm(IN/HR) = .446 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.68 RAINFALL INTENSITY (INCH./HOUR) = 2.58 EFFECTIVE STREAM AREA(ACRES) = 52.59 TOTAL STREAM AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 114.71 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< - --------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.23 RAIN INTENSITY(INCH/HOUR) = 2.52 EFFECTIVE AREA(ACRES) = 51.16 TOTAL AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) = 97.24 AVERAGED LOSS RATE, FM(IN/HR) _ .436 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 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) = 16.23 RAINFALL INTENSITY (INCH./HOUR) = 2.52 EFFECTIVE STREAM AREA(ACRES) = 51.16 TOTAL STREAM AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 97.24 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 114.71 15.68 2.577 .45 52.59 2 97.24 16.23 2.524 .44 51.16 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 211.02 102.01 2 209.10 103.75 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 211.02 TIME(MINUTES) = 15.679 EFFECTIVE AREA(ACRES) = 102.01 TOTAL AREA(ACRES) = 114.90 FLOW PROCESS FROM NODE 198.00 TO NODE 80.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < - --------------------------- DEPTH OF FLOW IN 63.0 INCH PIPE IS 48.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 211.02 TRAVEL TIME(MIN.) _ .80 TC(MIN.) = 16.48 FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< ---------------------------- 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.502 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 10.37 EFFECTIVE AREA(ACRES) = 108.01 AVERAGED Fm(INCH/HR) _ .449 TOTAL AREA(ACRES) = 120.90 PEAK FLOW RATE(CFS) = 211.02 TC(MIN) = 16.48 FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ---------------------- DEPTH OF FLOW IN 54.0 INCH PIPE IS 38.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.3 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 980.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 211.02 TRAVEL TIME(MIN.) _ .94 TC(MIN.) = 17.42 FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< -------------------- 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.419 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 13.39 EFFECTIVE AREA(ACRES) = 116.11 AVERAGED Fm(INCH/HR) _ .458 TOTAL AREA(ACRES) = 129.00 PEAK FLOW RATE(CFS) = 211.02 TC(MIN) = 17.42 FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.419 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 23.98 EFFECTIVE AREA(ACRES) = 130.61 AVERAGED Fm(INCH/HR) _ .472 TOTAL AREA(ACRES) = 143.50 PEAK FLOW RATE(CFS) = 228.92 TC(MIN) = 17.42 FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 ---------------------------------------------------------------------------- >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 54.0 INCH PIPE IS 39.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.5 UPSTREAM NODE ELEVATION = 1238.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 228.92 TRAVEL TIME(MIN.) = .63 TC(MIN.) = 18.05 FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.368 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 16.88 EFFECTIVE AREA(ACRES) = 141.11 AVERAGED Fm(INCH/HR) _ .480 TOTAL AREA(ACRES) = 154.00 PEAK FLOW RATE(CFS) = 239.80 TC(MIN) = 18.05 FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 8 -------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.368 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 12.70 SUBAREA RUNOFF(CFS) = 20.42 EFFECTIVE AREA(ACRES) = 153.81 AVERAGED Fm(INCH/HR) _ .489 TOTAL AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) = 260.22 TC(MIN) = 18.05 FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 60.0 INCH PIPE IS 43.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.0 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 260.22 TRAVEL TIME(MIN.) = .47 TC(MIN.) = 18.52 FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 18.52 RAINFALL INTENSITY (INCH./HOUR) = 2.33 EFFECTIVE STREAM AREA(ACRES) = 153.81 TOTAL STREAM AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 260.22 **************************************************************************** FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1226.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 6.70 TC = .412*[( 400.00** 3.00)/( 6.70)]** .20 = 10.255 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.325 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 6.42 TOTAL AREA(ACRES) = 2.60 PEAK FLOW RATE(CFS) = 6.42 ************************************************************************** FLOW PROCESS FROM NODE 110.20 TO NODE 110.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 6.42 TRAVEL TIME(MIN.) _ .14 TC(MIN.) = 10.40 **************************************************************************** FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 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) = 10.40 RAINFALL INTENSITY (INCH./HOUR) = 3.30 EFFECTIVE STREAM AREA(ACRES) = 2.60 TOTAL STREAM AREA(ACRES) = 2.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.42 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 260.22 18.52 2.332 .49 153.81 2 6.42 10.40 3.298 .58 2.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 264.35 156.41 2 229.00 88.94 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 264.35 TIME(MINUTES) = 18.522 EFFECTIVE AREA(ACRES) = 156.41 TOTAL AREA(ACRES) = 169.30 FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.332 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 7.10 SUBAREA RUNOFF(CFS) = 11.18 EFFECTIVE AREA(ACRES) = 163.51 AVERAGED Fm(INCH/HR) _ .494 TOTAL AREA(ACRES) = 176.40 PEAK FLOW RATE(CFS) = 270.47 TC(MIN) = 18.52 FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< --------------- DEPTH OF FLOW IN 72.0 INCH PIPE IS 57.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.3 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH(FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 270.47 TRAVEL TIME(MIN.) = 1.07 TC(MIN.) = 19.59 FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.255 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = 1.17 EFFECTIVE AREA(ACRES) = 164.11 AVERAGED Fm(INCH/HR) _ .493 TOTAL AREA(ACRES) = 177.00 PEAK FLOW RATE(CFS) = 270.47 TC(MIN) = 19.59 ************************************************************************** FLOW PROCESS FROM NODE 120.30 TO NODE 120.00 IS CODE = 8 -------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.255 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) _ .50 SUBAREA RUNOFF(CFS) _ .97 EFFECTIVE AREA(ACRES) = 164.61 AVERAGED Fm(INCH/HR) _ .491 TOTAL AREA(ACRES) = 177.50 PEAK FLOW RATE(CFS) = 270.47 TC(MIN) = 19.59 **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.59 RAINFALL INTENSITY (INCH./HOUR) = 2.26 EFFECTIVE STREAM AREA(ACRES) = 164.61 TOTAL STREAM AREA(ACRES) = 177.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 270.47 **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 7 ---------------------------------------------------------------------------- »» >USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.41 RAIN INTENSITY(INCH/HOUR) = 2.71 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 65.74 AVERAGED LOSS RATE, Fm(IN/HR) _ .580 ***ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .58(INCHES/HOUR) **************************************************************************** FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) = 14.41 RAINFALL INTENSITY (INCH./HOUR) = 2.71 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 65.74 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 270.47 19.59 2.255 .49 164.61 2 65.74 14.41 2.712 .58 34.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 322.13 198.91 2 316.15 155.36 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 322.13 TIME(MINUTES) = 19.588 EFFECTIVE AREA(ACRES) = 198.91 TOTAL AREA(ACRES) = 212.00 FLOW PROCESS FROM NODE 120.00 TO NODE 140.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 63.0 INCH PIPE IS 46.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 322.13 TRAVEL TIME(MIN.) = .53 TC(MIN.) = 20.12 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 20.12 RAINFALL INTENSITY (INCH./HOUR) = 2.22 EFFECTIVE STREAM AREA(ACRES) = 198.91 TOTAL STREAM AREA(ACRES) = 212.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 322.13 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- »» >USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 12.47 RAIN INTENSITY(INCH/HOUR) = 2.96 EFFECTIVE AREA(ACRES) = 19.69 TOTAL AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) = 46.43 AVERAGED LOSS RATE, Fm(IN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.47 RAINFALL INTENSITY (INCH./HOUR) = 2.96 EFFECTIVE STREAM AREA(ACRES) = 19.69 TOTAL STREAM AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 46.43 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- »»>USER SPECIFIED HYDROLOGY INFORMATION AT NODE««< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.28 RAIN INTENSITY(INCH/HOUR) = 2.52 EFFECTIVE AREA(ACRES) = 14.44 TOTAL AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) = 26.73 AVERAGED LOSS RATE, Fm(IN/HR) _ .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 16.28 RAINFALL INTENSITY (INCH./HOUR) = 2.52 EFFECTIVE STREAM AREA(ACRES) = 14.44 TOTAL STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.73 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 322.13 20.12 2.219 .51 198.91 2 46.43 12.47 2.957 .58 19.69 3 26.73 16.28 2.520 .58 14.44 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 376.72 233.04 2 357.18 154.02 3 371.02 195.03 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 376.72 TIME(MINUTES) = 20.122 EFFECTIVE AREA(ACRES) = 233.04 TOTAL AREA(ACRES) = 254.20 FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < DEPTH OF FLOW IN 72.0 INCH PIPE IS 54.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.4 UPSTREAM NODE ELEVATION = 1206.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 620.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 72.00 PIPEFLOW THRU SUBAREA(CFS) = 376.72 TRAVEL TIME(MIN.) _ .63 TC(MIN.) N = .013 NUMBER OF PIPES = 20.75 1 FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 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) = 20.75 RAINFALL INTENSITY (INCH./HOUR) = 2.18 EFFECTIVE STREAM AREA(ACRES) = 233.04 TOTAL STREAM AREA(ACRES) = 254.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 376.72 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -----------------------------=-------------------------------- 1 376.72 20.75 2.178 .52 233.04 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE NUMBER Q(CFS) ---------------------- EFFECTIVE AREA(ACRES) ---------------------- 1 376.72 233.04 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 376.72 TIME(MINUTES) = 20.751 EFFECTIVE AREA(ACRES) = 233.04 TOTAL AREA(ACRES) = 254.20 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 254.20 EFFECTIVE AREA(ACRES) = 233.04 PEAK FLOW RATE(CFS) = 376.72 END OF RATIONAL METHOD ANALYSIS t ####rat•=%###uric`-iF#�i•�c�"riN#�F•s•#it##�r#'7k•##i�###=##3e•�r#'r7•iE�i•#�"e•�F##3t#�i•�c#itiriFifiF�iF��ii•�•##�3c3r�ii•#=�•�iki��E•� RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN DERNARDINO CO. HYDROLOGY CRITERION) Covyripht 1983,86,87 Advanced Engineering Software (ass) Ver-. 4.1C Release Date: 5/11/87 Serial # I00908 Especially prepared for: HALL & FOREMAN ti;:•#��i•ai��i�i�i�i�i►i DESCRIPTION OF STUDY �iac�i►i�c►i�it��t�i#trot• * FOOTHILL DRAIN HYDROLOGY, LINE 8 & LATERALS "C", „E�. "G" & "H" * 0 100 YR * V. N. /.I. M. , 1'N 3834-020, 12/2/1988 •1F• * �E• �i• * -lE• �: •ii• •)f•* -)t• *•ii- * •1E• #iE * •k ii• * iF• * * * *# •R• * * * * dt• * �E• *dr dr * •lE••iE• iE * •iE• * •k• •�i•* * * * * �i• * ii•-li-dt• * -IE• * -x• * -Jf• •it• �f• if• •li• •li• * *-li-•ti• •tE FILE NAME: EVL I NEBT. DAT TIME/DATE OF STUDY: 11:21 1/ 2/1.388 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: - --*TIME-OF-CONCENTRATION MODEL*-- - ---- U SER SPECIFIED STORM EVENT (YEAR) = 100.00 SPECIFIED MINIMUM F'IF'E SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM e0 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 •ii•*****-lb**•!e•*•ii-*-IF•****�E•at•******************�f••iE•**•k•****di•****•ii•**-lE•*�E•******ii•-li•***-k**** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 -------------------------------------------------------------------------- )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE<(<<( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.25 RAIN INTENSITY(INCH/HOUR) = 3.34 EFFECTIVE AREA(ACRES) = 52,16 TOTAL AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) = 152.66 AVERAGED LOSS HATE, Fm(IN/HR) = .446 •tF•3f•iE•***•1F*****•1s••!i•*-li•�i•*ii•**•�•*****•)t•***•iE•***•�i•*9i•*ai••IE•*******•k***•�i•iE*�e•**#••if••ii••x••li•**-lt•******** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 -------------------------------------------------------------------------- >>>)>DESIGNAT'E INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.25 RAINFALL INTENSITY (INCH./HOUR) = 3.34 EFFECTIVE STREAM AREA(ACRES) = 52.16 TOTAL STREAM AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 152.66 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 -------------------------------------------------------------------------- )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<<(( Ubtrt-�H�Lar 1tL V1-LUCb Hr(k H5 r-ULLUWS: TC (MIN) = 16,10 RAIN INTENSITY ( INCH/HOUR) = 3.24 EFFECTIVE AREA(ACRES) = 51.15 TOTAL AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) = 130.26 AVERAGED LOSS RATE, Fm(IN/HR) _ .436 �3r �� •�• #� •k if #r ib iF � •� # •k •li--� di-df� � •ii� •IF�IE 9t• •x-�E•�F •��r-lf� �E•� •3e• �F �f• �E •ie• �E�f-�E �F •k �E#� �F •�-iE• •fir •k�E �F•�i• �F # �-k •k •1t--� •k �-k �• �k •ii- •iF�F •le• �•�3i-•3��F• � �F •fit• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 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) = 16.10 RAINFALL INTENSITY (INCH./HOUR) = 3.24 EFFECTIVE STREAM AREA(ACRES) = 51.15 TOTAL STREAM AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 137.26 CONFLUENCE INFORMATION: STREAM FREAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 152.66 15.25 :3.344 .45 52.16 2 130.26 16.10 3.237 .44 51.15 RAINFALL 'INT'ENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- ]. 280.76 100. 61 2 277.28 11'4)3.31 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 280.76 TIME(MINUTES) = 15.250 EFFECTIVE AREA(ACRES) = 100.61 TOTAL AREA(ACRES) = 114.90 FLOW PROCESS FROM NODE 198.00 TO NODE 80.00 IS CODE = 3 -------------------------------------------------------------------------- ))>)>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<(< )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(< DEPTH OF FLOW IN 69.0 INCH PIPE IS 54.9 INCHES PIPEFLOW VELOCITY (F•EET/SEC.) = 12.7 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1:54.00 FLOWLENGTH(FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 260.76 TRAVEL TIME(MIN.) = .75 TC(MIN.) = 16.00 �3f••iF#-li-####•1E•iF#-1t•�t•##•if••if•####•►6####•if•�i-##•k•#aF####•3t•####-�##•IF####-3F#�lt•############•k#•k####iF# FLOW PROCESS FROM NODE 80.00 TO NODE 80.00 IS CODE = 1 -------------------------------------------------------------------------- >)>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<(<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.00 RAINFALL INTENSITY (INCH./HOUR) = 3.25 EFFECTIVE STREAM AREA(ACRES) = 100.61 TO•T'AL STREAM AREA(ACRES) = 114.90 PEAK. FLOW RATE (CFS) AT CONFLUENCE = 260.76 FLOW PROCESS FROM NODE 80.10 TO NUDE 80.00 IS CODE = 2 -------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((( DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4- DWELLINGS/ACRE -- - -� TC = K#C(LENGTH## 3.00)/(ELEVATION CHANGE)?** .20 INITIAL SUBAREA FLOW -LENGTH = 950.00 UPSTREAM ELEVATION = 1272.00 DOWNSTREAM ELEVATION = 1254.00 ELEVATION DIFFERENCE = 16.00 TC = . 412# C ( 950.00** 3.00)/( 18.00)3** .20 = 14.141 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.499 SOIL CLASSIFICATION IS "A" RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 15.75 TOTAL AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) = 15.75 FLOW PROCESS FROM NODE 80.00 TO NODE 80.00 IS CODE = 1 >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( >))>>AND COMP►_ITE VARIOUS CONFLUENCED STREAM VALUES<<<<( -------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.14 RAINFALL INTENSITY (INCH./HOUR) = 3.50 EFFECTIVE STREAM AREA(ACRES) = 6.00 TOTAL STREAM AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.75 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN,) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 280.76 16.00 3,249 .44 100.61 2 15.75 14.14 3.499 .56 6.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER G(CFS) AREA(ACRES) 1 ------------------------------------------- 295.16 106.61 265.98 94.92 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 295.16 TIME(MINUTES) = 16.000 EFFECTIVE AREA(ACRES) = 106.61 TOTAL AREA(ACRES) = 120.90 FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 >>`r>)COMPUTE: PIPEFLOW TRAVELTIME THRU SUBAREA<<<(( >>>})USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<<( DEPTH OF FLOW IN 60.0 INCH PIPE IS 44.S INCHES ----- ----_ ---_-- PIPEFLOW VELOCITY(FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 960.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 P I PF_FLOW THRU SUBAREA(CFS) = 295.16 TRAVEL TIME(MIN.) = .87 TC(MIN.) = 16.87 FLOW PROCESS FROM NODE 90.00 TO NODE 90.00 IS CODE = 1 -------------------------------------------------------------------------- ))))>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.87 RAINFALL INTENSITY (INCH./HOUR) = 3.15 EFFECTIVE STREAM AREA(ACRES) = 106.61 TOTAL STREAM AREA(ACRES) = 120.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 295.16 FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = E -------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<(< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE -- TC = K*C(LENGTH## 3,00)/(ELEVATION CHANGE)3## .20 INITIAL SUBAREA FLOW -LENGTH = 1600.00 UPSTREAM ELEVATION = 1261.40 DOWNSTREAM ELEVATION = 1:38.00 ELEVATION DIFFERENCE = 23.40 TC = . 41;x'# E ( 1600.00** 3.00)/( 23.40)3** .20 - 18.345 100 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 2.993 SOIL CLASSIFICATION IS „A„ RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5620 SUBAREA RUNOFF(CFS) = 17.58 TOTAL AREA(ACRES) = 6.10 PEAK FLOW RATE (CFS) = 17.56 FLOW PROCESS FROM NODE 90.00 TO NODE 90.00 IS CODE = 1 -------------------------------------------------------------------------- > > > >) DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE (< (( < >>>)>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< CONFLUENCE VALUES USED FOR ]INDEPENDENT STREAM E ARE: TIME OF CONCENTRATION(MINUTES) = 18.35 RAINFALL INTENSITY (INCH./HOUR) = 2.99 EFFECTIVE STREAM AREA(ACRES) = 8.10 TOTAL STREAM AREA(ACRES) = 8.10 FREAK FLOW RATE(CFS) AT CONFLUENCE = 17.58 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) ------------------------------------------------------------ (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 L95.16 16.87 3.147 .45 106.61 17.58 18.35 a.993 .56 ) 8.0) RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 312.36 114.06 2 295.87 114.71 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 312.36 TIME (MINUTES) = 16.872 EFFECTIVE AREA(ACRES) = 114.06 TOTAL AREA(ACRES) = 129.00 FLOW PROCESS FROM NODE 90.0 TO NODE 90.00 IS CODE = 8 -------------------------------------------------------------------------- >)>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<(< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 3.147 SOIL CLASSIFICATION IS "A" RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, FmQNCH/HR) _ .5820 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 33.47 EFFECTIVE AREA(ACRES) = 128.56 AVERAGED Fm(INCH/HR) _ .472 TOTAL AREA(ACRES) = 143.50 PEAK FLOW RATE(CFS) = 312.36 TC(MIN) = 16.87 �• aE• •� •� •� •�-1i• ai• •� # •� di• �• •� •�• ��--� �- •x• �• ae• •x• •!i•9F •� •�i• ai• •��• �• •� � �i•di• �• ai• ai• di• ai• •lE-k � •IE •� •lE• � ai• •ii• •� ai• •��• # •x• •�• 9i• �• 1E ai•-� # •lr �i• �• �• # •� •��• •��•-k••��• •R• •��• •� •� FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<(< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 60.0 INCH PIPE IS 44.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.9 UPSTREAM NODE ELEVATION = 1238.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 740.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 312.36 TRAVEL_ TIME(MIN.) = .58 TC(MIN.) = 17.46 •� •�i-�-•� •�• •� •�� •� •� •� •�• •�•� •� •x• •� •� ai• et• •��• •� •�i• �• •�•-� •�i• �-•��•-k• �••�•-�• a� •��• ai• •��• •�i• •►�• �• �•-x• •��• �• �• •x• •� •� •� •�-k-ai-•��• •r�• a� •��• ai• �r •►�• ji• ae• •� •�•� •��• •� •�i••�i• •�i• •x �• -k-�• �• •� FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<((< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 3.083 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, FmQNCH/HR) = .5820 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 23.64 EFFECTIVE AREA(ACRES) = 139.06 AVERAGED Fm(INCH/HR) _ .480 TOTAL AREA(ACRES) = 154.00 PEAK FLOW RATE(CFS) = 325.60 TC(MIN) = 17.46 •k••if•####•iF�i•######••k•##•k•#####-!s•######•k•##de•#di•di•#####3t••3i•######-)F••####•li•##########•li••ii••�••Yr#### FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 8 -------------------------------------------------------------------------- >)>>)ADDITION OF SUBAREA TO MAINLINE FREAK FLOW<<<<< 100 YEAR RAINFALL INTENSITY (I NCH /!-FOUR) = 3,083 SOIL CLASSIFICATION IS "A" RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE. Fm (I NCIH/ HR) _ .5820 SUBAREA AREA(ACRES) = 12.70 SUBAREA RUNOFF(CFS) - 28.59 EFFECTIVE AREA(ACRES) = 151.76 AVERAGED Fm(INCH/HR) _ .485 TOTAL AREA(ACRES) = 166.70 PEAK; FLOW RATE (CFS) = 354.39 TC(MIN) = 17.46 FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE = 3 -------------------------------------------------------------------------- >>>)>COMPUTE PIPEFLOW TRAVEL'fIME THRU SUBAREA<(<<< )>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 66.0 INCH PIPE 19 50.4 INCHES - PIPEFLOW VELOCITY(FEET/SEC.) = 18.2 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE: ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 354.39 TRAVEL TIME (MIN.) = .44 TC (Mi N. ) = 17. SO ###•3i••3i•#�E•#•1i•##•1E•###•R•ar#•1i•#•k•�i•##�t•##•li•#-li•-li•##•k•#�e•#•k••R••3E•#•3E•####•�t•##•3;•####•�i•##�i•################ FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 -------------------------------------------------------------------------- >>>)>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.90 RAINFALL INTENSITY (INCH./HOUR) = 3.04 EFFECTIVE STREAM AREA(ACRES) = 151.76 TOTAL STREAM AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) AT CONFLUENCE _ 354.39 FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE = 2 -------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE -`-_ TC = K#E(LENGTH## 3.00)/(ELEVATION CHANGE)?** .20 INITIAL SUBAREA FLOW -LENGTH = 400. 014) UPSTREAM ELEVATION = 1226.70 DOWNSTREAM ELEVATION = 1220,00 ELEVATION DIFFERENCE = 6.70 TC: = . 412# E ( 400.00** 3.00)/( 6.70)3** .20 = 10.255 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.243 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) = .5820 SUBAREA RUNOFF<CFS) = 8.57 TOTAL AREA(ACRES) = 2.60 PEAK FLOW RATE(CFS) = 8.57 #####•#•########•3raE-##•!r•i(-###•3i•#####•k##•i:•k•#it###•!r•k•##•!E•##•k#•k##•3f•iFiE•#•t••)i•yi•#ii••)4•##•;F#•Dr-x••li ##-)c##iEti FLOW PROCESS FROM NODE 110.20 TO NODE. 110.00 IS CODE = 3 -----------------------------------•---------------------------------------- > >) > > COMPUTE. PIPEFLOW T RAVELTIME THRU SUBAREA < (< ( < >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<(<< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 9.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.8 UPSTREAM NODE ELEVATION = 122.1.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH ( FEET) = 70.00 0 MANN I NGS N = .013 ESTIMATED F'IF'E DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 6.57 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 10,39 ######-��#�•######t�####�•�i•�i••�#ie-�r#�####•�i•#####•�#•�####-�a�#agar••�##•�i•#######�•��e#�#•�##a�#- FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = i --------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<(<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE:: TIME OF CONCENTRATION(MINUTES) = 10.39 RAINFALL INTENSITY (INCH./HOUR) = 4.21 EFFECTIVE STREAM AREA (ACRES) = 2.60 TOTAL STREAM AREA(ACRES) = 2.60 PEAT{ FLOW RATE(CFS) AT CONFLUENCE = 8.57 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 354.39 8.57 [ 17.90 3. 038 .49 151.76 ,/ 2 . 5 I 10.39 4. 210 .58 2. 60 RAINFALL IN'T'ENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR ` STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER G(CFS) AREA(ACRES) --------------------------------------------- 360.19 -------------------------------------------- 360.19 154.36 i; 308.88 90.69 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 360.19 TIME (MINUTES) = 17.896 EFFECTIVE AREA(ACRES) = 154.36 TOTAL AREA(ACRES) = 169.30 ###�•#####�-�•######•�###�•#�••�#•�######•�•�i•###�••�-�###•+i•###•+Fri••�-#�•###•x-•k•##�•#####�-�•�•�•�••�#•�• FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ------------------------------------------ -------------------------------- >>)>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.038 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 7.10 SUBAREA RUNOFF(CFS) = 15.69 EFFECTIVE AREA(ACRES) = 161.46 AVERAGED Fm(INCH/HR) _ .494 TOTAL AREA(ACRES) = 176.40 PEAK FLOW RATE(CFS) = 369.60 TC(MIN) = 17.90 FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 >>>)>COMPUTE: PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((( DEPTH OF FLOW IN 81.0 INCH PIPE IS 64.0 INCHES-------- PIPEFLOW VELOCITY(FEET/SEC.) = 12.2 UPSTREAM NODE ELEVATION = 1216.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH(FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 81.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 369.60 TRAVEL TIME(MIN.) = .99 TC(MIN.) = 16.88 •ii• •lE 9i• •iE * * •�• * •li• * dF *-li-* •!E *• •lE• * 9i• 9i• ii• •3E-1f•-li-•k-IF fit• •1(• •iE• •k• �f• 9f• ii� �E• dF•9i• 9f• •1F •iE •!t •)E• •lf• •!F •1t- •lE �iE• fit• •if• �f• •3i• •iE •k •k dE �lt-•lE •it •1F •li• •� dE iE •iE�t• •k• •3i• •lf• •iE �6.1� fit• dE •Ii• FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 -------------------------------------------------------------------------- >>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.86 RAINFALL INTENSITY (INCH./HOUR) = 2.94 EFFECTIVE STREAM AREA(ACRES) = 161.46 TOTAL STREAM AREA(ACRES) = 176.40 PEAK FLOW RATE(CFS) AT CONFLUENCE _ 369.60 FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 2 -------------------------------------------------------------------------- )>)>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<((< DEVELOPMENT IS COMMERCIAL - -- -- - TC = K*E (LENGTH** 3.00)/(ELEVATION CHANGE)3** .20 INITIAL SUBAREA FLOW -LENGTH = 770.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 5.80 TC = . 304* -C ( 770.00** 3.00)/< 5.80)1** .20 = 11.537 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.953 SOIL CLASSIFICATION IS "A„ COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA REA RUNOFF(CFS) = 2.08 TOTAL AREA(ACRES) = .60 PEAK FLOW RATE(CFS) = 2.08 •#• •!�• •1i• •k• 9F * *• * -ti•* •k•* •)i• •iF• *• •!t dr * •#�•� * �i•-lr *• ii• * *• * * dr •It• iF # •li• dE •k *•-)i-•!f• iE •)i• •ii•!F *• * * * •!F * •)i• * *• * ii• * * * it• jE• •iE •k *-�E •!F• *• di• ii• * * * df• •1t• •iP * FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---- ---------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION <M I NUTES) = 11.54 RAINFALL INTENSITY (INCH./HOUR) = 3.95 EFFECTIVE STREAM AREA(ACRES) _ .60 TOTAL STREAM AREA(ACRES) = .60 PEAK FLOW RATE{CFS) AT CONFLUENCE = 2.08 *•�E•iE'k*�*•3i-iF•3F**•�•�•*�*� iFiF*�:•#r•!f••�••k*•l�iF•iFiE*•3�•!E•lE�i-#*�i•ii �*•3f••ii �#•*ii •iE*�#i�•iF�i �-k�i •3�•i�-i�-i�•�•A ai •�•�i �i it•3F#•�•*•i� FLOW PROCESS FROM NODE 121.30 TO NODE 120.00 IS CODE = 2 --------------------------------------------------------------------------- >>>))RATIONAL MF"HOv INITIAL. SUBAREA ANALYSIS(<((< DEVELOPMENT IS COMMERCIAL - - --- ---- TC = K* C ( LENGTH** 3.00)/(ELEVATION CHANGE) 3 * .20 INITIAL SUBAREA FLOW-LENIGTH = 600.00 UPSTREAM ELEVATION = 1217.80 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERE=NCE = 2.60 TC = .:30-4.3i• C ( 64:0. 00** 3. 00) / ( 2. G o) -1 ** .20 - 11.662 100 YEAR RAINFALL INTEE' SITY(INCH/HOUR) = 3.926 SOIL CLASSIFICATION IS "A'' COMMERCIAL_ SUBAREA LOSS RATE, Fm ( INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = i.72 TOTAL AREA(ACRES) = .50 PEAK FLOW RATE(CFS) = 1.72 •k •ii• •k •k• #• •� i6 # •ii• •16 •k- iE �i• •3i• •li• •3F• •!f• di•lE •!t• •IF• •3f• •if• it• •li• •3E •it• •IF 9f• •3f• •k• � •i!• # •li• •}F •li• •x• # •ii• -1F• ii• •ii• it• •x• �f• -li• •ii• •3i• •ii• •lF 9i• af• 9f• -ie• •if• •lt• *• it •)t• •1r •3i• di• � •3t• •iE ii• •li• if• •Yi• •iF •It• �k• •!E FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = i ---------------------------------------------------------------------------- >)>))DESIGNATE INDE'P'ENDENT STREAM FOR CONFLUENCE<<((< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 11.66 RAINFALL INTENSITY (INCH./HOUR) = 3.93 EFFECTIVE STREAM AREA(ACRES) _ .50 TOTAL STREAM AREA(ACRES) = .50 PEAK FLOW RATF-<CFS) AT CONFLUENCE. = 1.72 FLOW PROCESS FROM NODE: 1200.00 TO NODE 120.00 IS CGDE = 7 -------------------------------------------------------------------------- >>)))USER SPECIFIED HYDROLOGY INFORMATION AT NODE<((<( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.36 RAIN INTENSITY(INCH/HOUR) = 3.47 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 89.05 AVERAGED LOSS RATE, Fm (I N/HR) _ .580 ***ERROR; SPECIFIED LOSS RATE, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .56 (INC•HES/HOUR) •#••�••�i�•i�•�•�i•r�••�a�•�•�-�-••��••�•;�••�•�e•�••�•�•x •�•��i•�•�•�i••x-•��•�••�•�•�•�-�••�•�•�•�i•�•��•�•�•�•�•�i-•�a�a�•��••�i•sFae•��••�•��•����••�a�•��•�a�a�••� •�-�a•�••��• FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) - 14.36 RAINFALL INTENSITY (INCH./HOUR) = 3,47 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 69.05 CONFLUENCE INFORMATION: STRE=AM PEAK FLOW TIME NUMBER ---------------------------- RATE(CFS) (MIN.) 1 369.60 18.86 2 2.4:8 11.54 3 1.72 11.66 4 69.05 14.36 INTENSITY FM EFFECTIVE (INCH/HOUR) ------------------------------------ (IN/HR) AREA(ACRES) 2.942 .49 161.46 ,. 956 . 10 . 60 1.928 .10 .50 3. 46 7 .56 34.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE: EFFECTIVE NUMBER 0 (CFS) AREA (ACRES) ------------------------------------------- 1 445.27 196.86 2 406. 56 127. 30 3 407. 92 121G. F,a 4 433. 7,y 158.19 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 445.27 TIME(MINUTES) = 18.882 EFFECTIVE AREA(ACRES) = 196.66 TOTAL AREA?ACRES) = 212.011Z ##�•####-jai-#•�•##�•#�•###•�#jt•##•�•################•�•##a�#•x•###�-########•�i••r'•##•x•a�##•�•#####�i FLOW PROCESS FROM NODE 120.00 TO NODE 140.00 IS CODE = 3 ))>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<( >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(( DEPTH OF FLOW IN 69.0 INCH PIPE IS 55.1 INCHES - ----- PIPEFLOW VELOCITY (FEEL'•/SEG.) = 20.0 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM, NODE ELEVATION = 1205.00 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .01 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPE:FLOW THRU SUBAREA (CFS) = 445.27 TRAVEL TIME&MIN.) = .50 TC(MIN.) = 1%38 ##ti•##•3f###•R••!i•##•it•####•ii•##•�f•#*•#####dt•########•3f•###9i•####•Yi•##•3e-•3t•####•ii••li•#•k••3f•###ii••li•-�•3E#•k•#•K•#•i'.• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 >))?)DE:SIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.38 RAINFALL INTENSITY (INCH./HOUR) = 2.90 EFFECTIVE STREAM AREA(ACRES) = 196.88 TOTAL STREAM AREA(ACRES) = 212.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 445.27 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 --------------------------------------------------------------------------- >>>))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 12.41 RAIN INTENSITY(INCH/HOUR) = 3.78 EFFECTIVE AREA(ACRES) = 19.77 TOTAL AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) = 62.16 AVERAGED LOSS RATE, Fm (IN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 -------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: ---_------ T I ME OF CONCENTRA TI ON (MINUTES) = 12.41 RAINFALL INTENSITY (INCH./HOUR) _ 1.78 EFFECTIVE STREAM AREA(ACRES) = 19,77 TOTAL STREAM AREA(ACRES) 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 62.16 ##•1i•####•�#####ii•dt••it•##•!t••k••lt••k••ii#-ii••ii•##•k•-1e•#•k•#•it•#•3i•#########•iF#•lt••It•###•le•#it••�••3i--�•*•#######-k•###•if--k••k•# FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 --------------------------------------------------•------------------------ ))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE(((<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC011N) = 16.25 RAIN INTENSITY ( INCH/HOUR) = 3.22 EFFECTIVE AREA(ACRES) = 14.61 TOTAL AREA(ACRES) = 17.20 PEAK FLOW RATE(GFS) = 36.55 AVERAGED LOSS RATE, Fm(IN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 )>>)•>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((<( >)>>)ANI) COMPUTE VARIOUS CONFLUENCED STREAM VALUES(((<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: ~-- TIME OF CONCENTRATION(MINUTES) = 16.25 RAINFALL INTENSITY (INCH./HOUR) = 3.22: EFFECTIVE STREAM AREA(ACRES) = 14.61 TOTAL STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 36.55 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 445.27 19.38 2.896 .51 196.86 a 62.16 12.41 3.764 .58 19.77 3 36.55 16.23 3.C19 .58 14.61 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER O(CFS) AREA(ACRES) --------------------------------------------- 1 522.27 231.24 487.13 156.98 3 511.55 199.44 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 522.27 TIME(MINUTES) = 19.361 EFFECTIVE AREA(ACRES) = E31.24 TOTAL AREA (ACRES) = 254.214) #####�i••�###aE•#####•>E•####•x•#�••��-#ae•#-�#ai••�i••�•>�#�••�#•ti-•�i•�i-•x•�••�t•##aE•##a�#•>f#•�#•�•�•#ai•-�•�i•�-�###->r#�•�••�•#•� FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 -------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<((< >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(((< DEPTH OF FLOW IN 81.0 INCH PIPE IS 61.9 INCHES PIPEFLOW VELOCITY (FEET/SEC.) = 17.6 UPSTREAM NODE ELEVATION = 1206.1.0 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH (FEET) = 620.00 MANNINGS N = .0Q ESTIMATED PIPE DIAMETER(INCH) = 81.00 NUMDER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 522.27 TRAVEL TIME(MIN.) = .58 TC(MIN.) = 19.96 •lE•k••k-A:••k••!r-1i••li••k••k•#•k•k••ii••ii••k•�••k•3i••ii••�•Ic••kiE•k-k#•Yc•li••k••!t•Ot••k••it••k-k•#••!f••34••A••ii•#•ii••1f•ii•#: di•if••3t•ir•Di••}i••]f•#•it••!e••3t••k••!t••1i•dcif••li•it••?t••1f•-k••3f•� •1r#•k k -k• FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) - 19.96 RAINFALL INTENSITY (INCH./HOUR) _ 2.85 EFFECTIVE STREAM AREA(ACRES) = 2a1.24 TOTAL STREAM AREA(ACRES) = 254.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 522.27 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE (CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) ----------------•----------------------------------------------- 1 522.27 19.96 2.845 .52 231.24 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 2 ` 1 LL. 2 L ( 231.24 COMPUTED CONFLUENCE ESTIMA'T'ES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 522.27 TIME: (MINUTES) = 19.962, EFFECTIVE AREA(ACRES) = 231.24 TOTAL AREA(ACRES) = 254. 20 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 554.20 EFFECTIVE AREA(ACRES) = 231.24 WEAK FLOW RATE(CFS) - 522.27 ENL) OF RATIONAL METHOD ANALYSIS Q- Alt IE #ir#######*•#############•i4•###iF###iFii#########ii•ic#•�•###•�f•#•#•###•li•# #•1F#•�••k•##•k###�•###=•#•fie• RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM PACKAGE (Reference: 1986 SAN BERNARDINO CO. HYDROLOGY CRITERION) Copyright 1983,86,67 Advanced Engineering Software (aes•) Ver. 4.1C Release Date: 5/11/87 Serial # 10090a Especially prepared for: HALL & FOREMAN ae ##•###�i•# �i ########## DESCRIPTION OF STUDY FOOTHILL DRAIN HYDROLOGY, LINE S & LATERALS "Cu."E", "G"j & "H, *• 0 25 YR # V. N. / J•. M. , JN 3834-020, •12/2/ 1368 ###•�•#####•�##•�-�•#######�•###a�••�#•�#-k•#####-►t•�t•�#######ai••ii•�•ai•####-sae-#-�##•�e•�•�•####�•#•�### FILE NAME : EVL I NEST. DAT TIME/DATE OF STUDY: 10:58 1/ 2/1988 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/HQUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 ###•ie•######•lt•#•ii•####9i•##############•ii•#############•3i•ie•####•IF•####-le•ie•##•!t•####•iE######•it•• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 00 IS CODE = 7 --------------------------------------------------------------------------- ) > >) > USER SPECIFIED HYDROLOGY INFORMATION AT NODE < (< < < USER-SPECIFIED VALUES ARE AS FOLLOWS: ----- TC (MIN) = 15.66 RAIN INTENSITY ( INCH/HOUR) = 2.56 EFFECTIVE AREA(ACRES) = 52.59 TOTAL AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) = 114.71 AVERAGED LOSS RATE. Fm(IN/HR) _ .446 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 --------------------------------------------------------------------------. >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<(<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATIDN(MINUTES) = 15.68 RAINFALL INTENSITY (INCH./HOUR) = 2.58 EFFECTIVE STREAM AREA(ACRES) = 52.59 TOTAL STREAM AREA(ACRES) = 59.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 114.71 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 --------------------------------------------------------------------------- >)>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<((<( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC 0yfIN) = 16.23 RAIN INTENSITY ( INCH/HOUR) 2.52 EFFECTIVE ARF_A €ACRES) = 51.16 TOTAL AREA ( ACRE'S) = 55.30 PEAK FLOW RATEWS) CFS) = 97.24 AVERAGED LOSS RATE, Fro (IN/HR) _ .436 •�• �• •�-� •� �• � •�• •��• •x• •� � •� •� �•�• � �• �• •ji• •� •� •� �-�• a�ai• •� •� •� •�•� •;i• •x• 9i-•��-�-•r� � �-�• •��• �t• •� �-►F •�e� •� •x-•�i• �• •�i- �� •� •� � •��••� •� � �••� •� •� •x• •� •� � •� � •� FLOW PROCESS FROM NODE 198.00 TO NODE 1 y8. 00 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) = 16.23 RAINFALL INTENSITY (INCH./HOUR) _ 2.52 EFFECTIVE STREAM AREA<ACRES) = 51.16 TOTAL STREAM AREA(ACRES) = 55.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 57.24 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 114.71 15.68 2. 577 .45 52.59 2 97.24 16.23 2.524 .44 51.16 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER 0.(CFS) AREA(ACRES) --------------------------------------------- 1 211.02 102.01 2 209. 1 k1 103.75 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 211.02 TIME(MINUTES) = 15.679 EFFECTIVE AREA(ACRES) = 102.O1 TOTAL AREA(ACRES) = 114.90 •� ae•-� a� ae• •�• �••��• � �• •� •x-•�• •�• �• � ir-di• •�-� •��•�• •� �• ii• di• �• •�•�•� di- •� 9E• •lE• �••� �• � •� aE••►i• •� it •ii-�•-x• •� •at• a� •h• � •x�• •� �• �• •� � •� �• •� �• ai• ai•-�• � •�•x• a� •��• •�• �• # �• �• FLOW PROCESS FROM NODE 198.00 TO NODE 80.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>)>)USING COMPUTER -ESTIMATED PIPESIZE <NON -PRESSURE FLOW)<<(<< DEPTH OF FLOW IN 63.0 INCH PIPE IS 46.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH<FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 211.02 TRAVEL TIME(MIN.) _ .80 TC(MIN.) = 16.48 •ii• •��• �i••1i• ii• •��• •� aE•-x• �• �-di•-� •li• �-�• � •ii• ai• •x• •��• ai• •k• ai• •��• •� �• �i• •� �• �••��• •��• di• •� •�• •� �• �i• •� �• -� # •1F di• •iE• �• •li• •� 9i• •� •x• at• •� •��• •� 9i••1i�• •� •� •34• �-�• �E •k •x• •� •►�• •��-•� �• FLOW PROCESS FROM NODE 60.00 TO NODE 80.00 IS CODE = 1 -------------------------------------------------------------------------- >>?))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.48 RAINFALL INTENSITY (INCH./HOUR) = 2.50 EFFECTIVE STREAM AREA(ACRES) = 102.01 TOTAL STREAM AREA(ACRES) = 114.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 511.02 FLOW PROCESS FROM NODE 80.10 TO NODE 60.00 IS CODE = 2 -------------------------------------------------------------------------- >>>))RATIONAL METHOD INITIAL SUBAREA ANALYSI'S<(<<( DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE -- TC = K*E(LENGTH** 00)/(ELEVATION CHANGE)?** .20 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1272.00 DOWNSTREAM ELEVATION = 1554.00 ELEVATION DIFFERENCE = 16.00 TC = . 415* E ( 950.00** 3.00)/( 18.00)3** .20 = 14.141 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.742 SOIL CLASSIFICATION IS "A" RF_S.I'DENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, FmQ NCH/HR) _ .5850 SUBAREA RUNOFF(CFS) = 11.66 TOTAL AREA(ACRES) _ 6.00 PEAK FLOW RATE(CFS) = 11.66 FLOW PROCESS FROM NODE 80.00 TO NODE 80.00 IS CODE = i -------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( >>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<((< - --------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.14 RAINFALL INTENSITY (INCH./HOUR) = 2.74 EFFECTIVE STREAM AREA(ACRES) = 6.00 TOTAL STREAM AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.66 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 211.02 16.48 2.502 .44 102.01 2 11.66 14.14 2.742 .56 6.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULT'S: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 `21.3',3 .,(( 108.01 2 213.6) 3.54 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 521.35 TIME(MINUTES) = 16.478 EFFECTIVE AREA(ACRES) = 108.01 TOTAL AREA(ACRES) = 120.50 - �i�li-k****�i-*ii**3i3i-1E***iilf-**�f-li***irli***3r**3i*ii*#�i-*-IEifii*Iik*k*�****�eJf*3ikli*�E*ii�1F*)Eklili FLOW PROCESS FROM NODE 80.00 TO NODE 50.00 IS CODE = 3 -------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<( >>)>)USING COMPUTER -ESTIMATED PIPESIZE <NON -PRESSURE FLOW)(<((< DEPTH OF FLOW IN 54.0 INCH PIPE IS 40.2 INCHES ---------------------' PIPEFLOW VELOCITY(FEET/SEC.) = 17.4 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH (FEET) = 980.00 MANNINGS N = .013 13 ESTIMATED PIPE DIAMETER(INCH) = 54,00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 221.39 TRAVEL TIME (MIN.) = .94 TC (MIN.) = 17.41 #•!i••ii•#•�i••li•#ai•9i•##•k••1f#•3E•#�i•##�i•##�4••lE•#•!�•#####•!i••3F#�(••x•ir#•�i•9i•###•k•#####•li•###�E•-x-####•k•######•li••k#�e••3(•###• FLOW PROCESS FROM NODE 90.00 TO NODE 90.00 IS CODE = 1 --------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<((<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.41 RAINFALL INTENSITY (INCH./HOUR) = 2.42 EFFECTIVE STREAM AREA(ACRES) = 108.01 TOTAL STREAM AREA(ACRES) = 120.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 221.39 #•i4##•iF###############•3f••3E�F##•x-##�E•##########�##jEdF###9E•##di-#########iF####•k##�E•#�1r•)f•##• FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 2 --------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS((<<< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE - TC = K#t(LENGTH## 3.00)/(ELEVATION CHANGE)J## .20 INITIAL SUBAREA FLOW -LENGTH = 1600.00 UPSTREAM ELEVATION = 1261.40 DOWNSTREAM ELEVATION = 1288.00 ELEVATION DIFFERENCE = 23.40 TC = . 412#L ( 1600.00** 3.00)/( 23.40) 3** .20 20 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.345 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, SUBAREA RUNOFF(CFS) tNOFF (CFS) = 12.86 TOTAL AREA(ACRES) = 8.10 PEAK FLOW RATE(CFS) 18.345 Fm(INCH/HR) = .5820 �e•####jf•#•k•#iE•ir•le•3####�E•�i•iF-!E##•iE••3E•#•!f•#•iE•jE••31•#•1E•#�E##•3E�E•iF#•1F•!F••lEdFit-#•i4••3E•x••k###iE•IE••!E••!i-#•1E-dF•3i•##iF#•kiE#•x••k •M••)E•#•3E•• FLOW PROCESS FROM NODE 90.00 TO NODE 90.00 IS CODE = 1 >))>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< )>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CDNCENTRATION(MINUTES) = 18.35 RAINFALL INTENSITY (INCH./HOUR) = 2.35 EFFECTIVE STREAM AREA(ACRES) = 8.10 TOTAL STREAM AREA(ACRES) = 8.12 PEAK FLOW RATE(CFS) AT CONFLUENCE = 12.86 CONFLUENCE INFORMATION: STREAM WEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) ----------------------------------------------------------- 1 221.39 17.41 2.420 .45 108.01 2 12.86 18.35 2.345 .58 8.10 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 234,11 115.70 2 225.89 116.11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 234.11 TIME(MINUTES) = 17.415 EFFECTIVE AREA(ACRES) = 115.70 TOTAL AREA(ACRES) = 129.00 �• •ii• di• iE• •lf-di• •lt• 9i• 9i• •it• •k •ii-# �(• •ii• •li• �• •3E •it• •If• di• •3i• •li• � •1F •ti• -k• ii••3i• 3r di• •k � # •!F # •iE• •li•-lt• •�• �• iE •k• �i••lE •1i• •3i• # # 9f -•!i• •IF •1f• •k •ie• •!t• •3F• •k• * �• •li••fi• •#• it• •k• •li• �•-x• # it •li• di• •)i• it • FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.420 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5€20 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 23.98 EFFECTIVE AREA(ACRES) = 130.20 AVERAGED Fm ( INCH/HR) _ .472 TOTAL AREA(ACRES) = 143.50 PEAK FLOW RATE(CFS) _ 234.11 TC (MIN) = 17.41 •x -•k •k• •� •3r •k• •k � •li• •li--k •IE •)i• �i••li� � � if• � dE •li• •li• •)E •)i• •Ii• it •k •�• ii• # di• •k• �F •IE # �4••l! dF �i-•it 9f• •ii• �E •lf• di• •k• �F•Jt• •3f••x•-!i• •1F •ti• ie• �6 •ii• •iF•li-•iE dt• •k ai• •li• � # •)i• •iE •k• �(-9i• �F•3i• •!F •le• FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 )>)))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<(<( DEPTH OF FLOW IN 54.0 INCH PIPE I S 39.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.6 UPSTREAM NODE ELEVATION = 1238.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) - 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 234.11 TRAVEL TIME (MIN.) = .63 TC (MIN.) _ 18.04 �i• •�-+• # •k• # 9i• it •iE• •�• 9i• 9E• ii•-li-•3� # di• •li• •3i• •iF •k # •!i• aE• •lf• •3i• •)F• �i• •li• •li• •Yi-•�• •K• di• •i�• •Yr ii- •�-•k• aE •)f •3i• 9i- •ii• df• •3E• •3E• •li• 94• •k• di• •k• •k• �i• •�C •3f• ii• �f•-k• •k• -li• ii• -)F-k• •�i• •li• •!e• •li• •3i• ic• •k• •li• •k• •k• FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 --------------------------------------------------------------------------- >))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.369 SOIL CLASSIFICATION IS "A" RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 16.89 EFFECTIVE AREA(ACRES) = 140.70 AVERAGED Fm(INCH/HR) _ .480 TOTAL AREA(ACRES) = 154.00 PEAK, FLOW RATE (CFS) = 239.22 TC(MIN) = 18.04 •k •it •IE• •k •k •ii• �E •3i•-k--1i-k •k •k � •k• fit• •3i• •ii- •�i• •� -li- •� •�• •� •k �- •)f• •it• � •li• ii- •k •i4• a�• iF •lF• •3i• at• •ii• �- �• •rc• •ii• i� if• �f•-if- �E -� � •i� ii• di• •fie• -x- •k it -�• •k ie •k �-� •3E -�i•-If--iF •3i- •k •�i•�• �E 3i• •li• - FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = e --------------------------------------------------------------------------- >)>)}ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.369 SOIL CLASSIFICATION IS "A'' RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5620 SUBAREA AREA(ACRES) = 12.70 SUBAREA RUNOFF(CFS) = 20.43 EFFECTIVE AREA(ACRES) = 103.40 AVERAGED Fm(INCH/HR) _ .488 TOTAL AREA(ACRES) = 166.70 PEAK FLOW RATE(CFS) = 259.65 TC (MIN) = 18.04 FLOW PROCESS FROM NODE 100.00 T•0 NODE 110.00 I S CODE = 3 >>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( >>>))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<<( DEPTH OF FLOW IN 60.0 INCH PIPE IS 43.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.0 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 259.65 TRAVEL TIME(MIN.) = .47 TC(MIN.) = 18.51 FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = i --------------------------------------------------------------------- ----- >>>))DESIONATE INDEPENDENT STREAM FOR CONFLUENCE((<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 18.51 RAINFALL INTENSITY (INCH./HOUR) = 2.33 EFFECTIVE STREAM AREA(ACRES) = 153.40 TOTAL STREAM AREA(ACRES) = 165.70 PEAK FLOW RATE(CFS) AT CONFLUENCE _ :59.65 FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE = 2 --------------------------------------------------------------------------. >>)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<(<< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE - TC = K*C(LENGTH** 3.00)/(ELEVATION CHANGE)1** .20 INITIAL SUBAREA FLOW -LENG'T'H = 400.00 UPSTREAM ELEVATION = 1225.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 5.70 TC = . 412* C ( 400.00** 3.000 6.70)3** .20 = 10.255 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.325 SOIL CLASSIFICATION IS „A', RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 6.42 TOTAL AREA(ACRES) = 2.50 PEAK FLOW RATE(CFS) = 6.42 FLOW PROCESS FROM NODE 111.20 TO NODE 110.00 IS CODE = 3 --------------------------------------------------------------------------. >>>>)COMPUTE PIPEFLOW TRAVEL'T-IME THRU SUBAREA((((< 0 0 >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ------------------------------- ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 16.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.2 INCHES PIPEFLOW VELOCITY ( FEET/ SEC.) = a.2 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1'21a ' 50 FLOWLENG T•H (FEET) = 70.00 MANINGS ESTIMATED PIPE DIAMETER(INCH) 18.00 P I PE:'FLOW THRU SUBAREA(CFS) = 6.42 TRAVEL TIME(MIN.) = .14 TC(MIN.) N = . 013 NUMBER OF PIPES = = 10. 40 FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 1 > >) > > DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE (< (< < )>)>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(((<< CONFLUENCE VALUES USED FOR INDEPENDEE.NT STREAM 2 ARE: - _--_--_- TIME OF CONCENTRATION(MINUTES) = 10.40 RAINFALL INTENSITY (INCH./HOUR) 3.80 EFFECTIVE S'T'REAM AREA(ACRES) = 2.60 TOTAL STREAM AREA(ACRES) = 2.614) PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.4: CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) ---•----------------------------------------------------------- 1 259.65 18.51 2.333 .49 153.40 6.42 10.40 3.296 .58 2.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR E STREAMS. SUMMARY RESULTS: S'C'REAM CONFLUENCE EFFECTIVE NUMBER G! ( CFS) AREA(ACRES) ---------------------------------------------- 1 :-'63. i8 155. Otte E 228.53 88. i5 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAL: FLOW RATE (CFS) = 263.78 TIME (MINUTES) = 18.514 EFFECTIVE AREA(ACRES) = 156.00 TOTAL AREA(ACRES) = 165.30 #•ii#•########•k••�••x•####•k•##•#•####ii•###########di•#######ii-•ii••�:•#######•ii•�F••3i•########•k•##•ii•###; FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ---------------------------------------------------------------------------- >>)>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 2S YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.333 SOIL CLASSIFICATION IS "A" RESIDENTIAL-) 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HFC) _ .58LO SUBAREA AREA(ACRES) = 7.10 SUBAREA RUNOFF(CFS) = 11.19 EFFECTIVE AREA(ACRES) = 163.10 AVERAGED Fm(INCH/HR) _ .454 TOTAL AREA(ACRES) = 176.40 PEAK FLOW RATE(CFS) _ 269.91 TC (MIN) = 18.51 •k:• •�f •Yi• 9f• •)f• •#• •4: •)t• •3f• •3:• ii• # # •it• •7f• # •3E •ii• •lE # # # •lf• •)E• # if• # df• •k •3E #• # •k• # #• 3F •k •k• 9i• # ie• is •ft• •1E # # # •ii• •ii• # # # # •lE• # # # # # # # # # •If• # # �(• # # •ii• •lf• •3i- 9F• •it• j FLOW PROCESS FROM NODE i 1O. 00 TO NODE 120.00 IS CODE = 3 > >) > > COMPUTE PIPEF•LOW TRAVELTIME THRU SUBAREA < < < < ( -- -_ - >)>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ------------- DEPTH OF FLOW IN 72.0 INCH PIPE IS 56.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.3 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM; NODE ELEVATION = 1215.20 FLOWLENGTH (F- EET) = 720.00 MANN I NG S N = .013 ESTIMATED PIPE DIAMETE:R(INCH) = 7E.00 NUMBER OF PIPES = 1 PIPEFLOW T•HRU SUBAREA (CFS) = 269.91 TRAVEL TIME(MIN.) = 1.07 TC(MIN.) = 19.58 •k• aF• * -k jr •�• •R• di• �i- # �i• �• #• * * * # �i• ii• * •x• •�• * * * ar •JE• * * dr 9i• •�• * * * dr •li• 9i• -x• •!F •1i• •)F -D• •k• ji-9t• �-* * iF if• •iE••� •1i• aF #• 9i- ii• •1� •►t •)i• �E• * * * * * •)t• •1i• •li• •)s• •k •� #• FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ----------------------------------------------------------------------------- )>)>>DESIGNATE INDEPENDENT STREAM FOR CONFLUE:NCE(<<(( CONJFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 19.56 RAINFALL INTENSITY (INCH./HOUR) = 2.26 EFFECTIVE STREAM AREA(ACRES) = 163.10 TOTAL STREAM AREA(ACRES) = 176.40 PEAK FLOW RATE ( CFS) AT CONFLUENCE = 269.91 � x. * * * •;� * * •�• * * �t••� •�•R• �F �E• •3e••i�• •iE• � �E i�-1F� •�E-�• iE• •x• •3i• •k �4• •� •iE• •� 3E• �E• �F• �E• �E• �i• •)E• -x• iF �F• �E• �E• •� � �E•li• �E••iE•-1i• �-•3i•-x-�F •if• iE �F• •!i• iF •� •� •3e � �F• �E• •�i• •3E •� iF iF FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 2 -------------------------------------------------------------------------- >>)?)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<((( --- ---------------- DEVELOPMENT IS COMMERCIAL TC = K*C (LENGTH** 3.00)/(ELEVATION CHANGE):!** .20 INITIAL SUBAREA FLOW -LENGTH = 770.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1215.20 ELEVATION! DIFFERENCE = 5.80 TC = . 304* E l 770.00** 3.00)/( 5.80)3** .20 = 11.537 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3,038 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE. Fm ( INCH/ HR) _ .0970 SUBAREA RUNOFF(CFS) = 1.62 TOTAL AREA(ACRES) = .60 PEAK FLOW RATE(CFS) = 1.62 #• •Di• 9i• �• * •�<• •#• •3i• ii• •Ii• •ii• * 3f• �• di• •i(• * * •Ji• * •li• •3i• di• •k• •k # * •li• * * �E• iE # •ii• •k * ii• ii• ii• •#• * * * * * * •1i- ji• •ii• * * •li• •3i• # * * it• 46 * 9e• �• •iF �i• •k• •iF �f• -la• •k- •!r •#�i• •#• * •k• }=LOW PROCESS PROM NODE 120.00 TO NODE 120.00 IS CODE = 1 -------------------------------------------------------------------------- )>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 11.54 RAINFALL INTENSITY (INCH./HOUR) - 8.10 EFFECTIVE STREAM AREA(ACRES) _ .60 TOTAL STREAM AREA(ACRES) = .60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.62 FLOW PROCESS FROM NODE 120.30 TO NODE 12.00 IS CODE = 2 -------------------------------------------------------------------------- >>)>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<(<( DEVELOPMENT IS COMMERCIAL TC = K*E(LE•NGTH** 3.00)/(ELEVATION CHANGE)3** .20 INITIAL SUBAREA FLOW -LENGTH = 600.00 UPSTREAM ELEVATION = 1217.80 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 2.60 TC = . ,SO4*C ( 600.00** 3.00)/( 2.60)3** , 20 - 11.662 25 YEAR RAINFALL INIFENSITY(INCH/HOUR) = 3.078 SOIL CLASSIFICATION IS "A" COMMERCIAL SUSAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF (CFS) = 1.34 TOTAL AREA(ACRES) = .50 PEAK FLOW RATE(CFS) = 1.34 •k •k• 9i• � �• •�• •k •li• •A• •ltii- # �• � �S• •3f• �••!t• �t-9i• �•k• •li•-1t ii• •!r •k• � # •iE• •)i• •k •►t• •1E ai• •!i• •�• •k -R• •�• •k �-x• -1r •#•-� 9F �F •k -7i• # � di• •k � �i• di• •x• de• •� �• •li• � •k -�• �• � � # •x• -k• � •►i• •k FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ----------------------------------------------------------------------------- ))>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 11.56 RAINFALL INTENSITY (INCH./HOUR) - 3.08 EFFECTIVE STREAM AREA(ACRES) _ .50 TOTAL STREAM AREA(ACRES) = .50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.34 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 7 -------------------------------------------------------------------------- )>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<(< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.41 RAIN INTENSITY(INCH/HOUR) _ 2.71 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 65.74 AVERAGED LOSS RATE, Fm (IN/HR) = .580 ***ERROR; SPECIFIED LOSS RATE;, FM IS LESS THAN MINIMUM POSSIBLE VALUE OF .58(INCHES/HOUR) FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- )>>>?DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(( >)1>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 14.41 RAINFALL INTENSITY ( INCH. /HOUR) = 2.71 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 65.74 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) --------------------------------------------------------------- 1 269.91 19.58 2.256 .49 163.10 2 1.62 11.54 3.098 .10 .60 3 1.34 11.66 3.078 .10 .50 4 65.74 14.41 E. 712 .58 34.30 RAINFALL INTENSITY CONFLUENCE FORMULA SUMMARY RESULTS: STREAM CONFLUENCE NUMBER Q(CFS) AND TIME OF CONCENTRATION RATIO USED FOR 4 STREAMS. ----------------------- 1 323. 7;1 3 301. 13 4 318.31 EFFECTIVE AREA(ACRES) ------------ 198.50 124.66 126.01 155.40 COMPUTED CONFLUENCE ES'T'IMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 323.72 TIME (MINUTES) = 19.580 EFFECTIVE VE AREA(ACRES) = 198.50 T'OT'AL AREA(ACRES) _ 212. 00 �ii- •!6 •k •if� •?�• ji• -K• •li• •lE �i• 9t ai- �i• 9E• �i• �i• �ii• •li• �ii• •�• •3F •!F •iF 3i• •k •k• •3t• •ii• •)i- �i• •iF •it •ii• •i� •IE• •it• di• •li• -k •1E •li� �i• •k -k• •k• •k •�f• ii• •k •k• �i• ii• •li -1i• ji• •k• �E 9F •3� •ii• #• # �ii-•3e� -k• •k fie• •1i• •3F •k• •R• •IE• �i• fie• FLOW PROCESS FROM NODE 120.00 TO NODE 140,00 IS CODE = 3 --------------------------------------------------------------- >>>)>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<( >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NUN -PRESSURE FLOW)(<(<( DEPTH OF FLOW IN 63.0 INCH PIPE IS 46.9 INCHES _ PIPEFLOW VELOCITY (FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 1215.:0 DOWNSTREAM NODE ELEVA'T'ION = 1206.00 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 383.72 TRAVEL TIME (MIN.) _ . 53 TC (011 N. ) = 20. 11 •►i• -x• -1i-•k # # # � •ii• 9e •)t •�- �• •1i• •7r •li•-li• •iF •�• •)i• � •�• 9i• •k• -X• •k •ii• •3i• •ii-•�i• •ii•iE iF iF-k •iE •x• �i• fie• •iF •it at• •It• •k �F• •1i• •lt• •3F dF •ii••x• dr 9F at •3F # •�i• •k• •1e•�f• •te• •1i• •3e •i� •k •!E• •DF •k• ii• •tF •�i•-�--?f• •k• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = i -------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF C:ONCENTRATION(MINUTES) _ 20.11 RAINFALL INTENSITY (INCH,/HOUR) = 2.22 EFFECTIVE STREAM AREA(ACRES) = 198.50 TOTAL STREAM AREA(ACRES) = 212.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 323.72 �•� •��• �• �••�• •� •� •�• �• �• •��• �� �• � �• � �a� •� �••�-a� •�• •�••��• •x•-� •� •� �• •� # •� �• �•� •� �-�•�• � �r •� •oaf• •� ac• a�-•� �• •� •� •� •� �•�-� �• �• �• �• � �-•�•�• •� �•-;t-•�••�• •�• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE _ 7 ------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INF=ORMATION AT NODE<<<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: T'C (MIIV) = 12.47 RAIN INTENSITY(INCH/HOUR) = 2.96 EFFECTIVE AREA(ACRES) = 15.69 TOTAL_ AREA(ACRES) = 25.00 PEAK FLOW RATE (CFS) = 46.43 AVERAGED LOSS RATE, FmQN/HR) = .580 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = i -------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM B ARE: TIME OF CONCENTRATION(MINUTES) = 12.47 RAINFALL INTENSITY (INCH./HOUR) = 2.96 EFFECTIVE STREAM AREA(ACRES) = 19.69 TOTAL STREAM AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 46.43 •l� aE ii• •k• •►: •3t •lE• # -k• ie �i• •IE• at aE 9i- ar ar �• aF ai• ai• ar de• •►E• araE ar #• at •k # ai• aE ji• ae aE ie• as• •k• of-•li• aF ai• aF aF ai•arar # •3F-# aF •!i -ab aN di• at at •li-•ii• �c •ii• •)f• •3i• •k •i�• •k• •k •!i- •ri• �i• •k• ie-# FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 _.------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<(<<< USER-SPECIFIED VALUES ARE AS FOLLOWS; TC(MIN) = 16.28 RAIN INTENSITY(INCH/HOUR) = 2.5 EFFECTIVE AREA(ACRES) = 14.44 TOTAL AREA (ACRES) = 17.20 PEAK FLOW RATE (CFS) = 26.73 AVERAGED LOSS RATE, Pm(IN/HR) _ .580 �• �i• -li• •!F •sf• •!i• •3E •ii• •�• -F:• •k• •iF •k• �E• dt• �i- •b: •�i- •k• •li• iF •3t •3(- 9f• •ii• •R• •k• •)i• •1r 9i• •A• •If• •k• •k• •�• -lf• •3r •k• •3i• •3e• •it• ii• •ii• •!i• �i• •x• •li• �i• •)f• •�• -1E •!i- •lE •le• •k �• •IF •?i -•IE •�f• •fE dF •�• -k •ii• 9i• •Di• •�• •k # iF •k• i •ii• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ))>%)•DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM^ 3 ARE; TIME OF CONCENTRATION (MINUTES) = 16.28 RAINFALL INTENSITY (INCH./HOUR) = 2.52 EFFECTIVE STREAM AREA(ACRES) == 14.44 TOTAL. STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.73 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER ----------------•---------------------------------------------- RATE (CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 323.72 20.11 2.21' .51 198.50 2 46.43 12.47 2.957 .58 19.69 3 26.73 16.28 2.520 .58 14.44 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q£CFS) AREA(ACRES) --------------------------------------------- 1 378.34 232. 63 , _' 358.61 153.82 3 372.56 194.76 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: FEA[< FLOW RATE (CFS) = 378.a4 TIME (MINUTES) = 20.114 EFFECTIVE AREA(ACRES) - 232.63 TOTAL AREA(ACRES) = 254.20 -k• •#• di• •fir *• #• �•-!i• •k• •ii• ii• # •li• •)i• •R• it •r•• •k• •36 •)i• #• -k -)i- ii• jr •li• •3F •li• •ii• �i• � •!i• dF -)F •k• •lr •1E •ii• •k •►6.3E •k iE •ii• •lf• •1i• •ii• •fr •it •IF di• •ii• if• •li• # •k-•iE• •�F •le• �i• •ii• •k• •ii• •3i• •3f• •li• �F •�i-•!f• ie• •!i• •�i--x• iF - FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 >>>))COMPUTE RIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>)>>USING COMPUTER -ESTIMATED PIPESI'LE (NON -PRESSURE FLOW)((((< DEPTH OF FLOW IN 72.0 INCH PIPE IS 54.6 INCHES P I PEFLOW VE•LOC I TY ( FEET/SEG.) = 16.4 UPSTREAM NODE ELEVATION = 1.206.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 620.00 MANNINGS N = .013 ESTIMATED F'IF'E DIAMETER(INCH) = 72.00 NUMBER OF FIRES = 1 PIPEFLOW THRU SUBAREA(CFS) = 378.34 TRAVEL TIME(MIN.) = .63 TC(MIN.) = 20.74 �i• •� •�i• •tE •N• •�i• fie• •x• -Y• -k •�i• •ii• fit- ji• •k• •if• # •� •3i-•li• •)i• •Ii• •li• •�•-x--1t # �E• di• •�• •li• •k •li• •iE ai-•iF •lE •ii• •ii• •!i• •!E •lt• # •�E• •#• -k• •iE •x -•ii• •3F •►i• #• •li• #• •!f• •k• •3i•it •#e• •iF •34• •�E •M• •1t •it •k• -li• ii• •x• •3i• ii• #• �f• •x• a FLOW PROCESS FROM NODE 606.00 TO NODE: 606.00 IS CODE = 1 ------------------------------------------------------------•---------------- >>.>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<(< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<<<< ------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM I ARE: TIME OF CONCENTRATION(MINUTES) = 20.74 RAINFALL_ INTENSITY (INCH. /HOUR) 2.18 EFFECTIVE STREAM AREA (ACRES) = 232.63 TOTAL STREAM AREA :ACRES) = 254. 20 PEAK FLOW RA'T'E(CFS) AT CONFLUENCE = 378.34 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMDER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA (ACRES) ---------------------------7---------------------------------- 1 378.34 20.74 8.179 .52 232.63 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- i ,x78.34 232.63 COMM'UT'ED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 375.34 TIME(MINUTES) _ 20.743 EFFECTIVE AREA(ACRES) = 232.63 TOTAL AREA (ACRES) _ 254.20 END OF STUDY SUMMARY: TOTAL AREA (ACRES) _ 254.20 EFFECTIVE_' AREA (ACRES) = a32.63 PEAK FLOW RATE(CFS) - 378.34 END OF RATIONAL METHOD ANALYSIS It I t I I[ I "Mi"'. � Q RATIONAL METHOD HYDROLOGY COMPUTER PROGR01--��__..__.___-•---_--=- BASED ON SAN BERNARDINO COUNTY (Slot_:? 1983; HYDROLOGY MANUAL (<((<C<<<<<<(<<<<<<<(<(<(<<<<C<<(<(<<<>>)?>>)})>))}>>>>>)II>>>)>>)•}'r)) j >)>); (C) Comyr,igh't i98E Advanced Engineering Software CAES_1 Especially prepared for: HALL_ & FOREMAN, INC. a• sc DESCi; I PIT I ON OF * FOOTHILL DRAIN HYDROLOGY LINE ''A'' a * 0 100 YR, FROM NUDE 10.1 TO NODE 607 a M. , 3N 3534-0021 10/ 16/ 1 S88 ---------------------------------------------------------------------------- USER SPECIF=IED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -------------------- 7------------------------------------------------------- U]F_R SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE 10 --YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 --YEAR STORM 60 -MINUTE INTENSITY (I NCH/ HOU R) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 i—HOUR INTENSITY ( INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 SOC HYDROLOGY MANUAL "C" --VALUES USED Advanced Engineering Software CAES"s SERIAL No. A0580A REV. &I RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 10.10 TO NODE 10.10 IS CODE = E - >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<((<( -` ------------ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT I S : SINGLE FAMILY (1/4 ACRE) TC = K* C (LE NGTH**3) / (ELEVATION CHANGE) 3 **. INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1274.014) DOWNSTREAM ELEVATION = 1250.60 ELEVATION DIFFERENCE = 23.40 TC = . ,399* C ( 1000. 00**3) / ( 23. 40) **. E = Q.1661 10+x.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.649 SOIL CLASSIFICATION IS "A" SINGLE—FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7538 SUBAREA RUNOFF(CFS) _ 22.30 T OTAL AREA (AI RES) = 8.0 .0 TOTAL RUNOFF(CFS) _ 22,30 •F• +• •k * dr •3i-'�• •R• s• #• •i� •Y •k• it •k• �f• •ii� �: � •R• •k• if• •)f• •�i• •#• •3i- ii• -�- •k -k •Di- �i• -lE •k ii• a�• ib •iF •3i• aF• �E• �E• 3i• #• # �• •ir •i�• •k• #- •IF •# •k• 3E• •Y.• •li- �i• •Y •3i• •�• •?i• •ir -k- •It• •k -lE• it •DE fi• •3i• ie• # •Y:• #• if FLOC! PROCESS FROM NODE 1&10 TO MOUE 10.00 IS CODE = 6 -------------------------------------------------------------------------------- 0 )>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<( UPSTREAM ELEVATION - 1250.60 DOWNSTREAM ELEVATION 1241.30 STREET LEND i•H ( FEET) = 600.00 CURE{ HE I GTH (INCHES) = G. STREET HALFW I DTH (FEET) = 20.00 STREET CROSSFALL ( DEC I MAL) = . 0270 SPECIFIED NUMBER GF HALFST REETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) 22.30 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) = .E,; HALFSTREET FLOODWIDTH(FEET) = 18.55 AVERAGE FLOW VELOCITY (FEET/SEC.) = 4.69 PRODUCT OF DEPTH&VELOCITY = 2.89 S T R •ETFLOW TRAVELTIME (MIN) = 2.13 TC (MIN) = 15.32 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.335 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(I/4 ACRE LOT) RUNOFF COEFFICIENT = .7557 SUBAREA AREA(ACRES) _ 0.00 SUBAREA RUNOFF(CFS) = 0.00 SUMMED AREA ( ACRES) = 8.00 TOTAL RUNOFF(CFS) = 22. 30 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .62 HALFSTREET FLOODWIDTH(FEET) = 18.55 FLOW VELOCITY(FEET/SEC.) = 4.69 DEPTH*VELOCITY = 2.89 FLOW PROCESS FROM NODE 10.30 TO NODE 10.00 IS CODE = 8 ---------------------------------------------------------------------------- >>)>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((<(< 100.00 YEAR RAINFALL INTENSITY < I MCH / HOUR) _ 3.335 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7557 SUBAREA AREA (ACRES) = 5.40 SUBAREA RUNOFF (CFS) = 13.61 TOTAL AREA VACRES) = 1&40 TOTAL RUNOFF(CFS) = 35.90 TC(MIN) = 15.12 �:-•f:•)i•�C•*•i�••1:*•k•l�#••3��t•�i•****•K •k�i •1F •k•**•Y•ii•*ii•***-k•�i***•1f••�•�E•�i•�i•*iF•lN•ir#*•if••D�••ii•*-k•**ir•ii•iE�t'••li•*iE•�•*�i•*fir*•lE•!i•*#-k*i;•�t FLOW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE = 1 ------------------------------------------------------------------------------- )•>)i>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.3E RAINFALL INTENSITY (INCH./HOUR) = 3.33 TOTAL STREAM AREA (ACRES) = 13.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 35.90 #�• * * •k *;i• •�• •k• �i• * �kiF * * * #� * •�• •7{• * ii• * # •3F• .k. �• •it• •Dr * #• •� #:- * * �# * * #• * * -k• * 3E * 9f• •)i•.y�•.k..*. •�• *.y�. �• •� * #• •iF � * *••3F •k• �• •ii• * •Y• #+• * •�• � fit• * -Y •k FLOW PROCESS FROM NODE 10.20 TO NODE 10. 00 IS CODE = 2 --------------------------------------------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<(< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*E(LENGTH**3)/(ELEVATION CHANGE)3*•x.2 INI T IAL SUBAREA FLOW--LE!`dGS = 1060.00 ST1261.40 UPSTREAM ELEVATION = DOWNSTREAM ELEVATION = 1241.30 ELEVATION DIFFERENCE = 20.10 TC = . 39...' * E ( 1000.. 00**3) / ( 0. 1 0) ] **. 2 = 13.593 93 100.00 YEAR RAINFALL INTENSITY (I NCH/HOUR) == 3.582 SOIL CLASSIFICATION IS "A" SINGLE-FA'MILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7622 SUBAREA RUNOFF(CFS) _ X4.03 TOTAL AREA ( ACRES) = 8.80 TOTAL RUNOFF ICFS) - L4. 0,3 '�•'� i�••b;-;�•�i••k-�: �s�ir�•�E•�••i� •3c•ie•�•�••�••��•�i-���F•k•�i••3t-•3��••)i•�•i�,!••��•�r�4••3i �•kir•�i-•�-�•§�##-•!r•�••!��••1'••�i•i�••x-•Dr••�••k�•�•�i�•li•iF�-!:••i�•#•�•#••x #-•k••;t•i:•#•§ FLOW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE = i >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( ) > > > > A •?D COMPUTE VARIOUS CONFLUENCED STREAM VALUES (((( ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: --- -- - -- ' TIME O CONCENTRATION(MINUTES) - 13.59 RAINFALL INTENSITY (INCH./HOUR) _ 3.58 TOTAL STREAM AREA (ACRES) = 6,80 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE _ 24.03 CONFLUENCE INFORMATION: STREAM RUNOF=F TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) -------------------------------------------------- 1 35.90 15.32 3.335 �'4. 03 13. 59 2'. 553 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: S. 27 55. 8S COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 58.27 TIME(MINUTES) = 15.320 TOTAL AREA !ACRES) = 22.214) 'k. Yt it �C• •�"ie• is"iF'It'-Ik.'�'.i�'�t"?�-'1F •lt"�f•'p"�t' 3!' �i"iP'p' 3t"aF �l"IF' �:"�; ')! 'i!"D: '1i' •)t-'�"�e'.� •pt.'1F'�t' •1E'i2"�!"iF �!"� 1t' iF 3t'�'�•.�'-DE•.y'yc' -}t•.�"�.'�r'if"3!"D' �Q"ik"�'it �:"k-'jE.';C"p: 'k. #• .r:.'�'.p PLOW PROCESS FROM NODE 10.00 TO NODE 1 S. 00 1S CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUDAREA<((<( ) >) > > US I NG COMPUTER -ESTIMATED P I PES I Z E ( NON -PRESSURE FLOW) (< (( ( DEPTH T -i OF FLOW lN 36.0 INCH PIPE IS 24.6 INCHES------------- PIPEFLOW VELOCITY (FEET/SEC.) = 11.3 UPSTREAM REAM NODE ELEVATION = 1241.30 DOWNSTREAM NODE ELEVATION = 123S,20 FLOiWL NG f H i FETE i) = 500.00 MANN I GIGS N- . 013 ESTIMATED PIPE DIAMETER ( INCH) _ 36.00 NUMBER OF PIPES = 1. PIFlEF=LOW THRU SUB'ARE.A (CFS) -= 58.27 TRAVEL T I!'*'IE (MIN.) = .74 T C (MIN.) = 16.06 #:••?�•k•�: ei-#'-�•+ii•ii••�•ii•.�•ii••�•-�•iE•lti�•�i••k••!r-k'di'#.�•.k•k•�'•3f••Di••3i•#•iH#'iE�: #'k••k�#•3a•#it'�'i��##•ii" 3i-•iF#9f•acde'##•#'!F•3i•�'lt'•#•'k'#�i'dcdrie•#•�•#•�•#••� FLOW PROCESS FROM NODE 20.10 TO NODE: 15.00 IS CODE = 6 11>0ADDITION OF SUBAREAS TO MAINLINE PEAK FLOW((<<< 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.242 -- -- -- SOIL CLASSIFICATION IS "A" SINGLE-FAMIL'Y(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7530 SUBAREA AREA(ACRES) _ 5.60 SUBAREA RUNOFFF(CFG) = 13.67 TOTAL AREA (ACRES) = 27.80 TOTAL RUNOFF (CFS) = 71.94. MIIN) _ I6. 06 �: •�: •R• #• •iE• •�:• # �: •3b # •3i• # # # •�• •ii• # •� •ii• •lE• # # •li• # #:• •k• •�• -D: -1k =rc # �• �• -D¢ -k• # •F:• •1i• # �• # # di• # # 3v 3%• # •)i• 9r �• # # �• # #• # �: •ie•• •it• it # •3i• # ii• 3t• # •A• # it• •!r 3i• •3f• 3r # •Y: FLOW PROCESS FROM NODE 20.20 TO NODE 1 . +t O IS CODE = 8 > > > )• > ADDITION OF SUBAREA TO MAINLINE PEAT( FLOW < ((< < 100. k` Z YEAR RAINFALL INTENSITY ( INCH/HOUR) _ 3.242 SOIL CLASSIFICATION 1S "A" S I NGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7330 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 11.72 TOTAL AREA(ACRES) = 32.60 TOTAL RUNOFF(CFS) == 83.66 TO(MIN) = 16.06 •►•A••k*•###•b:##•1r•k:•�f•#####•It•##•lE•####•iF##iF•#####•�•#####•#•###•li•�•##�•#�•###•)b•!E•#####•######ie•it••ii•#i': �:•df••A FLOW PROCESS FROM NODE I5.00 TO NODE 20.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<(<( )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(( DEPTH OF FLOW IN 42.0 INCH PIPE IS 31.4 INCHES ---------� __-__ PIPEFLOW VELOCITY(FEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1835.20 DOWNSTREAM NODE ELEVATION = 1231.50 FLOWLENGTH ( FEET) = 420.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 83.66 TRAVEL TIME(MIN.) = .65 TWIN.) = 15.70 -IE•#�i-;r###•lf•#########•lE#####if•###•)F•####•)(-�i•#######•)f•#########�••iF•li•##iF#•ii••)F•####•�•###�E•iE•#####�i FLOW PROCESS FROM NODE 20.30 TO NODE 20.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 100.00 YEAR RAINFALL INTENSITY (I NCH/ HOUR) = 3.166 SOIL CLASSIFICATION IS "A' SINGLE-FAMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7507 SUBAREA AREA (ACRES) = 3.70 SUBAREA RUNOFF (CFS) = 8.79 TOTAL AREA (ACRES) 36.30 TOTAL RUNOFF (CFS) _ 92.45 T C (MIN) = 16.70 •)f••3e•�i•####�••*•##ii••�:••Y•###•'s�##•3f•#####iE##•-Y:•##:•3f•#######•#ii•#########�e•ii-##•�•#iF•ie-#•ii•#•#####•##•�•##iE•#•lE-•s FLOW PROCESS FROM NODE LO.40 TO NODE 20.00 IS CODE = G ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 100.00 YEAR RAINFALL iNTENSITY(INCH/HOUR) == 3.166 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7507 SUBAREA AREA(ACRES) = 5.20 SUBAREA RUNOFF(CFS) = 12.36 TOTAL AREA(ACRES) = 41.50 TOTAL RUNOFF(CFS) = 104.61 TC(MIN) = 16.71-41 #�•�i•!f••)i••k••#•ii•#it--k•iE•#i:••IEit•k••�••1i•##3t-•k•�t••�••3e•ii••)i••Y:••ls•#•#•3i-#•1i-•3E•3+:••1r•#•iF•�i••if••iE•##•P•#ii•ii•#•�i•-k••k#iF•it•#�F-3i•#•1i•�i•3E•iE•�••!i••�i�#3E•#•k-k-i; •k•ai•ii FLOW PROCESS FROM NODE 20.00 TO NODE 30.00 IS CODE _ 3 ----------------------------------------------------------------------------- > >) > > COMPU"f E PIPEFLOW TRAVELTIME THRU SUSAREA < < (< < )>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<((( DEPTH OF FLOW I N 45.0 INCH PIPE IS 34.6 INCHES HES PIPEFLOW VELOCITY(FEET/SEC.) = 11.3 UPSTREAM NODE ELEVATION - 1231.50 DOWNSTREAM NODE ELEVATION = 1221.60. FLOWLENGTH ( FEE z•) = 1100.00 MANN I NGS N = .013 ESTIMATED F'IF'E DIAMETER(INCH) = 45.00 NUMBER OF PIPES = �. PIPEFLOW THRU SUBAREA (CFS) = 104.81 TRAVEL TIME(MIN.) = 1.53 TC(MIN.) = 18.30 FLOW PROCESS FROM NODE 30.00 TO NODE 50.00 IS CODE ---------------------------------------------------------------------------- > > > > CQMPUTE PIPEFLOW TRAVELTIME THRU GUBAREA (((< ( >))) > USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) (((( ( DEPTH Ci= FLOW IN 42.0 INCH PIPE IS 30.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.8 UPSTREAM NODE ELEVATION = 1221.60 DOWNSTREAM NODE ELEVATION = 1210.10' FLOWLENG T H (f= EE T) = 800.00 MANN I NGS N = .013 ESTIMATED F`IF`E DIAMETER(INCH) = 42.00 NUMBER OF F'IF'ES = 1 PIPEFLOW THRU SUBAREA(CFS) = 104.81 TRAVEL TIME (MIN.) = .97 TC (MIN.) = 19.26 FLOW PROCESS FROM NODE 50.00 TO NODE 50.00 IS CODE = 1 ---------------------------------------------------------------------------------- > > > > > DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ((< < ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.26 RAINFALL INTENSITY (INCH./HOUR) _ 2.31 TOTAL STREAM AREA (ACRES) = 41.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 104.61 •k##•�•�i•#i•#�•iEy#�i•k#�••3E•3r##ir#di••t•�4••3F•#:#####i••1i••iE###-1i•#•:f•dt�r#•li•#•k•#9F•it•####•1•#di•iE##it•#•li••Dr•#•z#�i•##ie••lri:••!t•'ic•�:3 FLOW PROCESS FROM NODE 40.10 TO NODE 40.00 IS CODE = E ---------------------------------------------------------------------------------- > > > > > RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < (( ( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* C t LENGTH***) / (ELE'VA T I ON CHANGE) J**. 2 INITIAL IAL SUE{AREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1236.00 DOWNSTREAM ELEVATION = 1224.24 ELEVATION DIFFERENCE = 11.76 TC = . 393* C i 1 0i%0. 0+Z **3) / ( 1 1. 76) J **. 2 = 15.131 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.360 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7564 SUBAREA RUNOFF(CFS) = 13.21 TOTAL AREA (ACRES) = 5.20 TOTAL RUNOFF (CFS) = 13.21 •i• # •� �• # dE •k-# •li•9c •it•df• # -1i- # # 9E # # # ii •Ic• •k• # # # •k• •)• •#• �• # # # it#+9E•�E• •� # r •ir •iE# •iF 9i -i( iz• # it• # �• •li•# •ii• # 3F it iE• # # •Y=# # iE # •ii• # it d: # �• # ii• 3E j PLOW PROCESS FROM NODE 40.10 TO NODE; 40.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA((((< UPSTREAM ELEVATION = 1224.24 DOWNSTREAM ELEVATION = 12i3.30 STREET LENGTH (FEET) - 700.00 CURD HEIGTH ( INCHES) = S. STREET HALFW I DTH (FEET) = 18.00 STREET REET CROSSFALL ( DEC 1 MAL) = . 0,:x;_0 SPECIFIED NUMBER OF HALFS T RESTS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 13.21 NOTE: STREETFLOW EXCEEDS TOP Or CURB. ''-HE FOLLOWING STREETFLOW RE.SULTS ARE BASED ON THE A2SUM ,-ION, THAT NEl`iLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLOCTED. STREET FLOWDEPTH (FEET) = .54 HAL S T REET F LOODW I DTH ( FEET) = 13,62 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.30 PRODUCT OF DEPTH&VELOCITY = 2.34 ;TREE T FLOW T RAVELTIME (MIN) = 2.71 TC (MIN) - 17.64 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.043 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY11/4 ACRE LOT) RUNOFF COEFFICIENT = .7467 SUBAREA AREA(ACRES) = 0.00 SUBAREA RUNOFF (CFS) = 0.00 SUMMED AREA(ACRES) = 5.20 TOTAL RUNOFF(CFS) = 13.E1 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .54 HALFST REET FLOODW I DTH ( FEET) _ 13.62 FLOW VELOCITY(FEET/SEC.) = 4.30 DEPTH VELOCITY 2.34 •�:�#•�•��of-•��••�-a�••�:�••x-�••�#aE• �-�•x•�•>E•��••>r�•�••3i•x-•��••�•���•�-,€-•;E•->F�••��•�ar�••�••>F•ie a��••s�a�•�•>t�•aE••��-�•�•�i••���•��-•>r�•�c;�•;<••��••�-iF� FLOW PROCESS FROM NODE 40.20 TO NODE 40.00 IS CODE _ $ ----------------------------------------------------------------------------- )>>>)A%DITION OF SUBAREA TO MAINLINE PEAK FLOW((((< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 3.043 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = . 746 7 SUBAREA AREA(ACRES) 4.00 SUBAREA RUNOFF(CFS) = 5.05 TOTAL AREA(ACRES) = 9.20 TOTAL RUNOFF(CFS) = 22.30 TC (MIN) = 17.84 • �••Y:�•#�•1Fi63f•#•-k••k•k•k•3i••R••Di••li••k•iE•�i••!t�•-1t••#•�•li-•k•#•)E•iE•!E•�-•k�i••k�Fie••iE•!i-ie•if••##•k•iE•9f••iEd4•a:•3f••�6•#t••)(-jf•�••k••3rjf••k•li•#•ii•iF•>E•ii•-1'.•9i••#34••Ki•iE••iE�r•ie•-k••k FLOW PROCESS FROM NODE 40.00 TO NODE 40.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>)>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((<<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) - 3.043 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7467 SUBAREA AREA(ACRES) 2.50 SUBAREA RUNOFF (CFS) = 5.68 TOTAL AREA(ACRES) = 11.70 TOTAL RUNOFF (CFS) = 27.96 TWIN) = Q.84. •�•�• �• �:••�•�• •��• •>t••�•->t�-�• •��••K•a� �• �••� •>r •x•�• �• �•-� �• �••>r •�� •�••x-�•��• •x• •x �•# •� ••��•• � �•••�••��• •x••��• �••�••� •>E•�••�• •��• �:• •x •�r••��• �••� •x••,�•-� •>i••k•�• •� �•�• �;-•#•.� •h•�.•z:••.� FLOW PROCESS FROM NODE 40,30 TO NODE 40.00 IS CODE = 3 ----------------------------------------------------------------------------- >)Q> ADDITION OF SU81REA TO MAINLINE PEAK FLOW<((<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.043 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7467 SUBAREA AREA(ACRES) = 7.30 SUBAREA RUNOFF(CFS> = 16.59 TOTAL AREA(ACRES) = 15.00 TOTAL RUNOFF(CFS) = 44.57 TC(MIN) = 17.64 # �Q• •)f••k-•li• •1E• •k••3i•-)i• •iE• #• # i• �i-# •3F #i• -K• •3t• � •lE •k• �= iF-1t-li-•3r �i• •ii• �i •k •fi• •iE •lE 9E• •1F # �i•# 9e• •if• #i #: •le• i( if-#• •ii• # # •iE•�• •k�• •k• •)t -ib -)F••)F •!i• �i• # -lt• �i• •le --)f• 3e• ai• �53c• •lr •1�• fii••1t •3� #• 3 FLOW PROCESS FROM NODE 40.00 TO NODE 50.00 IS CODE = 3 ---------------------------------------------------------------------------- >>)))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 30.0 INCH PIPE IS 21.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.6 UPSTREAM NODE ELEVATION = 1213-30 DOWNSTREAM NODE ELEVATION = 1210.10 FLOWLENGTH ( FEET) = 200.00 MANN I NGS CSI = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 44.51 TRAVEL TIME(MIN.) _ .29 TC(MIN.) = 18.13 FLOW PROCESS FROM NODE 50.10 TO NODE 50.00 IS CODE = e ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.014 SOIL CLASSIFICATION IS "A'' COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .B291 SUBAREA AREA(ACRES) = 1.40 SUBAREA RUNOFF(CFS) = 3.50 TOTAL AREA(ACRES) 20.40 TOTAL RUNOFF(CFS) = 48.07 TC (MIN) = 18.13 FLOW PROCESS FROM NODE 50.20 TO NODE 50.00 IS CODE = 8 - >>>•r>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((( !00.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.014- StOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .6291 SUBAREA AREA(ACRES) = 2.80 SUBAREA RUNOFF(CFS) = 7.00 TOTAL AREA(ACRES) _ 23.20 TOTAL RUNOFF(CFS) = 55.07 TC IMIN) = i8.13 #••3�#•ii••k'.•#•k••34••it•###•�#••k•##•##3f•###i•##3i •�##•F:#•#•####•#3f•####iF#•#••3E�E•#•#••3E•it•#•#•)(•###••#•#e#•#•F:••�•iE####:•#•k##•3F•'•i � FLOW PROCESS FROM NODE 50.00 TO NODE 50.00 IS CODE = 1 )>)>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((< >))>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<((( --CON'-LUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENT RATION & I NU T ES) = 18.13 RAINFALL. INTENSITY ?INCH./HOUR) = 3.01 TOTAL STREAM AREA (ACRES) _ 23.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ 55.07 CONFLUENCE w NFORMAT I ON : STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1 104. 211 19. 26 2. 907 � 5 . k.� c: ,�7 16.13 3.014 RAINFALL INTENSITY AND TIME t OF CONCENTRATION RATIO FORMULA (SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 157.92 153. 73 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) _ 157.92 TIME (MINUTES) = 19.261 TOTAL AREA(ACRES) = 64.70 FLOW PROCESS FROM NODE 50.00 TO NODE 55.00 IS CODE = 3 !)> •) > CGIT+r'i..'•TE PIPEFLOW TRA:%ELTIME THRU SUDAREA < < (( < )>) >) US.LNG COMPUTER -ESTIMATED PIPESIZE (NON --PRESSURE FLOW) < < (< < DEPTH OF FLOW IN 57. 13 INCH FjIPE IS AFC. S INCHES PIPEFLOW VELDCI T Y (FEET/SEC.) •= 10.3 UPSTREAM NODE ELEVATION = 1210.10 DOWNSTREAM NODE ELEVATION = 1206. C,) FLOWLENGTH (F=E•ET) -= 4.00. 00 MANN I NGS N - .013 ESTIMATED D i' IPE DIAMETER(INCH) - 57.00 NUMBER OF PIES = , PIPEFLOW THRU SL;SAREA(CPS) - 157.92 TRAVEL , IME (M N.) = .65 T C (MIN.) - 19.91. ai •P<•##�=iF-�;F•��: �•ii•##ie#a�#a�i�•####�•#######�-iti#i~•#•�-#�•#####•�###i:•i�•#iE•#####�###i<•##-�#�:•#�: ##iF•##+: FLOW PROCESS FROM NUDE 55.10 TO NUDE 55.00 IS CODE. = a ---------------------------------------------------------------------------- ?>>)?ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((< 100.00 YEAR RAINFALL INTENSITY ( INCH/ HOUR) _ 2,850 ;.OIL CLASSIFICATION IS "A'' I NGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7396 SUDAREA AREA(ACRES) = 4.10 SUBAREA RUNOFF (CFS) = 6.64 TOTAL AREA(ACRES) = 68.80 TOTAL RUNOFF(CFS) _ 166.56 TC(MIN) = 19.9i #-� #•P:•Y:-�•�:•ii•#ii•it••Di••ic•#iE•#•ii••3r•ik•3F•i�•iE•!i•####}••)e•#•iF##ir#•##i4••k•#iFiE####•k•###ii-•tf•i4••k•#ii ##-�•####•k•if•#if•ir•�•ir#if ii•3E•ii# FLOW PROCESS FROM NODE 53.20 TO NUDE 5S.00 1S CODE = 8 ---------------------------------------------------------------------------- >)?))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.850 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7396 SUBAREA AREA(ACRES) = 1.30 SUBAREA RUNOFF(CFS) = 5.74 TOTAL AREA (ACRES) == 70.10 TOTAL RUNOFF (CFS) = 169.30 Tc(MIN) = 19.91 •k-#ii•#ii-•�••k'#•Jt•i6if•it••Pr###it if•##•###•Pc#if•###•Yi•####if•####if•iF•####iF�•####ii•if•#if•#ir########•Yr#: ###'f'##•#•#it FLOW PROCESS FROM NODE 55.30 TO NODE 5S.00 IS CODE = E3 > >) )• > ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < (< < < 100.00 YEAR RAINFALL INTENSITY ( INC H/HOUR) = 2.850 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT := .8279 SUBAREA A REA ( ACRES) _ .30 SUBAREA RUNOFF(CFS) = .7i TOTAL AL AREA (ACNES) 70.40 TOTAL RL �NOFF (CFS) = i70.01 Tt..kMIN) =• 19 51 i••Dv•P: ####iF•�•it #ic•iEit•#iP#•#••k•it###•fi#•1!•###•i�#•A: #�t••3�: ###•1�iF##if•#:#•Dt•ic#it-###iFiF##•k•###-b�###irifih•iE•#•Pi•#•#•iC•i?••k••si FLOW PROCESS FROM NODE 55.00 TO NODE 56.00 IS CODE = 3 ? ? > >) COMPtUTE PIPEFLOW TRAVELTINE THRU SUBAREA < (< < < ? •) > > > US INN COMPUTER -ESTIMATED PIPESIZE (NON --PRESSURE FLOW) ((< ( ( DEPTH OF FLOW IN 54.0 INCH PIPE IS 39.6 INCHES - -- -- - ---^ PIPEFLOW VELOCITY (FEET/SEC.) = 13.6 UPSTREAM NODE ELEVATION = 1206.00 DOWNSTREAM NODE ELEVATION = 1205.00 FLOWLENGTH ( FEET) = 200.00 ,MANN I NG S N = .013 ESTIMATED EU PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 170.01 TRAVEL T .IME (MIN.) = '37 TC (MIN.) _ 20.27 ?.#ii•#:•#•fFii •#: #: •?�••�=_yc##=###i•#:;*.•##:•i••#'r-#####=#•i#•ii•#•ii•#it#•k###•##ii•###•#•####iv######•x=•iz#•�: #: i=•�: i;•#•�,w#:•####:.•; PLOW PROCESS FROM NODE 56.00 TO NODE 56.00 IS CODE DE "- t ?))):DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUE'S USED FOR INDEPENDENT STREAM 1 ARE: --- T I ME Of: ; ONCEINT RAT I ON i M i INUTES) _ 20.27 RAINFALL INTENSITY (INCH./HOUR) - 2.82 TOTAL STREAM AREA (ACRES) = 70.40 -U (AL STREAM RUNOFF (CFS) AT CONFLUENCE = 00.0i 01 is 3ti###ie•#•#'<•�••ii•##iF•#*=#:###�•3Fit•######•}-•lE•df•tiF•####•####it•##•k•####it•###iF#•It••ic######is•#•#it•##df•###'r. #3 FLOW PROCESS FROM NODE 56.10 TO NODE 56.10 IS CODE - 2 ---------------------------------------------------------------------------- > 0 ; RATIONAL METHOD INITIAL SUBAREA ANALYSIS ((< ( < ASSUMED INITIAL SUBAREA UNIFORM ------ DEVELOPMENT IS: SINGLE FAMILY 11/4 ACRE) TC = K#E (LENGTH##3) / (ELEVATION CHANGE) 3 •k#. E .INITIAL SUBAREA FLOW -LENGTH = 600-014) UPSTREAM ELEVATION = 1213.00 DOWNSTREAM ELEVATION = 1206.0141 ELEVATION DIFFERENCE = 7.00 TC = . 393* C ( 600. 00**,3) / ( 7.00) 3 **. ` = 12.354 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.794 OIL CLASSIFICATION IS "A" S I NGLE-FAMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7871. SUBAREA RUNOFF(CFS) = 6.40 TOTAL AREA (ACRES) = 2.20 TOTAL RUNOFF (CFS) - 6.40 #••k:�••#•3i•#•if••3r•t4•#-li•##?•####•it•if•##9i•#######•kie••)f•##df••iE#•ir###•lt••Y:••le••!i•##•kit••li•######=•3e••iFit-•)E•##•k•##.••ie•�E•ii•##ib•lE••#•�3F#:••? FLOW PROCESS FROM NODE 56.10 TO NODE 56.20 IS CODE = 3 ----------------------------------------------------------------------------- )) > ! > COMPUTE PIPEFLON T RAVELTIME T HRU SUBAREA < < (( < COMPUTER -ESTIMATED P I PE:S I ZE ( NON -PRESSURE FLOW) (< (( ( DE -i'FH OF FLOW IN 18.0 INCH PIPE IS 10.3 INCHES P I P2PLOW VE LOC I TY ( FEET/ SEC.) = 6.1 NODE ELEVATION - 1206.00 DOWNSTREAM NODE ELEVATION - 1203.50 FUDWLENG"1 H (r- E I") = 50.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPE' 7LOW s -:"IRU SUBAREA ( CFS) - 6.40 TRAVEL TIME (;t'li!'v.) = .14 TC(MIN.) = 12. 49 •k•ia•#-Y<•#: #if•## ##•i�if•#:#•!i•##it•##r.•#ii•###########�•#####•k••}c•####?#########=#•k•#•a: 3•###•}t•#=###•#•#ii•#•### FLOW PROCESS FROM NODE 56.20 TO NODE 56.20 IS CODE = 6 ---------------------------------------------------------------------------- . > 0 ADDITION OF SUBAREA TO MAINLINE PEAK FLtOW (< < < < 100.00 YEAR RAINFALL INTENSITY (I NCH/HOUR) _ 3.769 ----------------- SUIL CLASSIFICATION IS "A'' S I NGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7666 SUBAREA AREA(ACRES) = 1.40 SUBAREA ,RUNOFF(CFS) = 4.05 TOTAL AREA (ACRES) _ 3.60 TOTAL RUNOFF (CFS) = 10.45 TC (MIN) - 12.49 ie•a; •k###•###•k###•k#####if•#•v: i'.•##•#:•##ri:#ii•##•k•####3E#iE•#it•###:r'-##•3�•a=#:•#•k•ir#:•###•k#i�••k###•Y:-##=####:#••A FLOW PROCESS FROM NODE 5G.20 TO NODE 56.00 IS CODE = 3 > > > > > COMPU T E PIPEPLOW TRAVELTIME THRU SUBAREA < < < < < >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.5 INCHES ---� PIPEFLOW VELOCITY (FEET/SEC.) = 4.15 UPSTREAM STREP"M NODE ELEVATION = 1205.50 DOWNSTREAM NODE ELEVATION = 1205.00 FLOWLENGTH (FEET) = 150.00 0 MANNINCS N - .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA(CFS) = 10.4S -RAVEL TIME (MIN.) = .5s TC (fT IN.) = 13.04 �• •TF #•k• •Yi•#• af••3i• # •fi # •k # �• # Y• •k ie � # ## # �# #� #•k•k-#: •ie• •ir •)i• # •k• ih•iF•# ar ## •IF•)e•# •lE• di• •1f• ## #•lF• •le•-)t••li•9F •if• •3Fii•#it •3� •3: is #•li• i�• � •A?• �S• # # •?F• •;�• # �:-•3� FLOW PROCESS FROM NODE 56.30 TO NODE 56.00 IS COME = a ----------------------------------------------------------------------------- >)>>>ADDITION Or SUBAREA TO MAINLINE PEAK FLOW(<((< 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.S73 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7644 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = 1.40 TOTAL AREA(ACRES) = 4.10 TOTAL RUNOFF(CFS) = 11.85 TC (PIIN) = 13.04 it•di•�f•9i••li•ii••ir•3i•#4i�=####3E•##�•##•########iE##•############•�••1e•#•3f••3£•####•#•##•It••i:-#•k•ii•#•tF••k•#iE•�•?i••k•�i-#•#3i••a--;(•�i FLOW PROCESS FROM NODE 56.00 TO NODE 56.00 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) = 13.04 RAINFALL INTENSITY (.INCH. /HOUR) _ .3.67 TOTAL STREAM AREA (ACRES) = 4.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 11.8,.`"-1 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------------------------------------------------------ 1 170.01 20.27 ,_ .819 2. 11.85 13.04 3.673 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 179.10 121.23 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF ( CFS) = 179.10 TIME(MINUTES) = 20.274 TOTAL AREA (ACRES) = 74.50 #�•###•�•�•�••�•##•�###�••�••��••�•��•�•#•��•at-�:•x�-•�•�-�•##•gat•#•�##�••>r#•r:•x•#•�a�•�:�•###�•#�•#•r•�•#�•#•�•x••�•�•##�•�; ;�-•�•��-•r FLOW PROCESS FROM NODE 56.00 TO NODE 57.00 IS CONE = all j )>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<(( ))>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(< DEPTH OF FLOW IN 54.0 INCH PIPE IS 36.6 INCHES ---_ PIPEFLOW VELOCITY(FEET/SEC.) = 14.7 UPSTREAM NODE ELEVATION - 1205.00 DOWNSTREAM NODE ELEVATION = 1201.00 FLOWLEN ,TH ( FEET) = 340.00 MANN I NGS N = .0Q ESTIMATED PIPE DIAMETER(INCH) - 54.00 NUMBER OF PIPES - 1 P.{.F`„E LOW THRU SUBAREA(CFS) - 179.10 TRAVEL TIME(MIN.) = .33 T C (MIN.) 20.66 �:•ie••R••Y:•##5•#•#f: ii•k••3i•dF#•le•###it##•if•fi•�••�;•# fir ii ###r'##•ie•�i•di•#•k•#•�•k••Yi•'i.•#•iN•iE##�i•i£••Ie•ii•###is•#dr#k•aE•######di•iF•####•?••3s FLOW PROCESS FROM NODE 57.00 TO NODE S7.00 IS CGDE _ -------------------------------------------------------------------------------------- )>)))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: :.%PSE OF CONCENTRATION(MINUTES) - 20.66 RAINFALL INTENSITY (INCH./HOUR) = 2.79 TOTAL STREAM AREA (ACRES) = 74.50 TOTAL. STREAM RUNOFF(CFS) AT CONFLUENCE = 179.10 •�i••�o•!i••i�••1f••k•F'•�c•k••k••?i•#•1F#•k•k•k•#•#####•li•#•k#•k#######•)F•######•R•�F##•1f•iF•IFiF#####•1t#iF•1F##3i•#di #•ie•##sF#•!E##ie••le•ii FLOW PROCESS FROM NODE 57.10 TO NODE 57.10 IS CODE = E ------------------------------------------------------------------.------•----- )>?)?RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<((( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*E(LENGTH##3)/(ELEVATION CHANGE)3#*.2 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1204.50 DOWNSTREAM ELEVATION = 1201.00 ELEVATION DIFFERENCE = 3.50 TC = 393# E ( 400. 00•x••fe 3) / ( 3.50) ] *#. 8 = 11.127 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.040 SOIL CLASSIFICATION IS „A', SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7722 TUBAREA RUNOFF(CFS) = 6.86 TOTAL AREA(ACMES) = 2.20 TOTAL. RUNOFF(CFS) = 6.86 PLOW PROCESS FROM NODE 57.:10 TO NODE 57.00 IS CODE = 3 >>)s)COMPUTE PIPEFLOW TR VELTIME THRU SUBAREA(((<< > >) > > US I NG COMPUTER -ESTIMATED MATED P I ACES I ZE ( NON -PRESSURE FLOW) < < < ( < DEPTH OF FLOW IN 18.0 INCH PIPE IS 13.0 INCHES PIPEFLOW VELOCITY(FEET/EEC.) = S.0 UPSTREAM NODE ELEVATION = 1201.00 DOWNSTREAM NODE ELEVATION = 1200.00 r..-OWLENG T H ( FEE ) = 170.00 MANN 1 NGS N - .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = l PIPEFLOW THRU SUBAREA(CPS) - 6.86 TRAVEL T IIS E (MIN.) = .57 TC (MIN.) = 11.63 FLOW PROCESS FROM NODE 57.00 TO NODE 57.00 IS CODE = 1 _..__...__---------------_-------.___________________________________-.--__-__----- >)?>>DESISNATE INDEPENDENT STREAM FOR CONFLUENCE((<(( ))>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<(<( _- CONFLUENCE VALUES -USED -FOR INDEPENDENTSTREAM2-ARE:--��_._-=---_--__,._____.:.__ TIME OF CONCENTRATIONKINUTES) = 11.63 RAINFALL INTENSITY (INCH./HOUR) _ 3.92 TOTAL. STREAM AREA (ACRES) = 2.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.86 CONFLUENCE INFORMATION: STREAM RUNOFF TIME :INTENSITY NUP)I{ER (Cr S) (AIN..} (INCH/HOUR) ------------__.-----------------------------.------------------------------------ 179. IQ c t3, SS 2.787 2 69 3.922 RA T NFAI i i N l ENS I TY AND TIME OF CONCENTRATION RATIO 1_-"'RMULA ( SDC) USED FOR 2 STREAMS. VARIOUS CONE LUENCED RUNOFF VALUES ARE AS FOLLOWS: 163. 98 108. `S COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (Gr a) - J.83.96 TIME(MINUTES) = 20.659 TOTAL AREA(ACRES) _ 76.70 ••ta##•k•#•li•####9t•#•3t••1F••iE•##9i•##�F####•lf•##########if•#9i••�•i�######i•#•ii••R•##•!i••k•#•###3i•####•ii,`F#iE�=##iE#•9E-1 FLOW PROCESS FROM NODE 57.1-410 TO NODE 607.00 IS COBE _ ---------------------------- ))))) CtO.MPUTE PIPEFLOW TRAVEL.TIME THRU SUPnREA ((< ( ( )))))USING COMPUTER-ESTIMATED P.IPESIZE (NON-PRESSURE FLOW)(<(<< DEPTH OF FLOW IN 57.0 INCH PIPE IS 45.9 INCHES PIPEFLOW VELOCITY (FEETISEC.) = 12.0 UPSTREAM NODE ELEVATION = 1200.00 DOWN TREAll NODE ELEVATION = 1194.00 FLGWLEN(:7H (F=EET) = 280. 14) MiANN I NGS N = .013 ESTIi�'Ai-QED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) TRAVEL TIME(MIN.) = .39 TC(MIN.) END OF RATIONAL METHOD ANALYSIS EFFECTIVE AREA(ACRES) = 51.15 PEAK FLOW RATE(CFS) = 130.26 END OF RATIONAL METHOD ANALYSIS 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.347 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 13.19 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 13.19 FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 15.23 RAINFALL INTENSITY (INCH./HOUR) = 3.35 EFFECTIVE STREAM AREA(ACRES) = 5.30 TOTAL STREAM AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.19 CONFLUENCE INFORMATION: CONFLUENCE EFFECTIVE NUMBER ------------------------------------------- STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 56.73 14.37 3.465 .58 21.42 2 11.32 16.85 3.150 .58 4.90 3 13.19 15.23 3.347 .58 5.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER ------------------------------------------- Q(CFS) AREA(ACRES) 1 80.56 30.60 2 74.11 31.62 3 78.62 31.15 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 80.56 TIME(MINUTES) = 14.374 EFFECTIVE AREA(ACRES) = 30.60 TOTAL AREA(ACRES) = 32.50 FLOW PROCESS FROM NODE 172.40 TO NODE 171.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 45.0 INCH PIPE IS 35.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.6 UPSTREAM NODE ELEVATION = 1268.50 DOWNSTREAM NODE ELEVATION = 1268.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 80.56 TRAVEL TIME(MIN.) _ .19 TC(MIN.) = 14.57 FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 ---------------------------------------------------------------------------- »» >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< - ---------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.57 RAINFALL INTENSITY (INCH./HOUR) = 3.44 EFFECTIVE STREAM AREA(ACRES) = 30.60 TOTAL STREAM AREA(ACRES) = 32.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 80.56 **************************************************************************** FLOW PROCESS FROM NODE 173.20 TO NODE 173.40 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 = 1281.94 DOWNSTREAM ELEVATION = 1273.56 ELEVATION DIFFERENCE = 8.38 TC = .304*[( 1000.00** 3.00)/( 8.38)]** .20 = 12.538 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.761 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 14.51 TOTAL AREA(ACRES) = 4.40 PEAK FLOW RATE(CFS) = 14.51 **************************************************************************** FLOW PROCESS FROM NODE 173.30 TO NODE 171.00 IS CODE = 6 -------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------- UPSTREAM ELEVATION = 1273.56 DOWNSTREAM ELEVATION = 1268.00 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 26.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 14.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 15.94 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) = .71 HALFSTREET FLOODWIDTH(FEET) = 17.69 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.38 PRODUCT OF DEPTH&VELOCITY = 2.41 STREETFLOW TRAVELTIME(MIN) = 3.70 TC(MIN) = 16.24 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.220 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.85 EFFECTIVE AREA(ACRES) = 5.60 AVERAGED Fm(INCH/HR) _ .201 TOTAL AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) = 15.22 **************************************************************************** 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 ************************** * FOOTHILL DRAIN HYDROLOGY, LATERAL E LINE B * Q 100 YR, NODE 69 TO NODE 198 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEE.DAT TIME/DATE OF STUDY: 16:28 1/ 1/1989 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE _ .6000 **************************************************************************** FLOW PROCESS FROM NODE 170.20 TO NODE 169.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1272.50 ELEVATION DIFFERENCE = 22.50 TC = .412*[( 1000.00** 3.00)/( 22.50)]** .20 = 13.946 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.528 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 26.51 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 26.51 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 169.00 IS CODE = 1 --------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< - ------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.95 RAINFALL INTENSITY (INCH./HOUR) = 3.53 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 26.51 **************************************************************************** FLOW PROCESS FROM NODE 170.10 TO NODE 169.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 850.00 UPSTREAM ELEVATION = 1283.10 DOWNSTREAM ELEVATION = 1272.50 ELEVATION DIFFERENCE = 10.60 TC = .412*[( 850.00** 3.00)/( 10.60)]** .20 = 14.706 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.418 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 25.52 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 25.52 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 169.00 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) = 14.71 RAINFALL INTENSITY (INCH./HOUR) = 3.42 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 25.52 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 26.51 13.95 3.528 .58 10.00 2 25.52 14.71 3.418 .58 10.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 51.66 19.48 2 51.04 20.00 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 51.66 TIME(MINUTES) = 13.946 EFFECTIVE AREA(ACRES) = 19.48 TOTAL AREA(ACRES) = 20.00 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 170.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ------------------ DEPTH OF FLOW IN 39.0 INCH PIPE IS 29.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7.8 UPSTREAM NODE ELEVATION = 1272.50 DOWNSTREAM NODE ELEVATION = 1272.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 51.66 TRAVEL TIME(MIN.) = .21 TC(MIN.) = 14.16 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.16 RAINFALL INTENSITY (INCH./HOUR) = 3.50 EFFECTIVE STREAM AREA(ACRES) = 19.48 TOTAL STREAM AREA(ACRES) = 20.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 51.66 **************************************************************************** FLOW PROCESS FROM NODE 170.30 TO NODE 170.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVATION = 1272.00 ELEVATION DIFFERENCE = 4.00 TC = .412*[( 1000.00** 3.00)/( 4.00)]** .20 = 19.701 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.868 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.26 TOTAL AREA(ACRES) = 1.10 PEAK FLOW RATE(CFS) = 2.26 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 19.70 RAINFALL INTENSITY (INCH./HOUR) = 2.87 EFFECTIVE STREAM AREA(ACRES) = 1.10 TOTAL STREAM AREA(ACRES) = 1.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.26 FLOW PROCESS FROM NODE 170.40 TO NODE 170.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE))** .20 INITIAL SUBAREA FLOW -LENGTH = 900.00 UPSTREAM ELEVATION = 1284.00 DOWNSTREAM ELEVATION = 1272.00 ELEVATION DIFFERENCE = 12.00 TC = .412*[( 900.00** 3.00)/( 12.00)]** .20 = 14.846 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.398 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 3.04 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 3.04 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< -------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.85 RAINFALL INTENSITY (INCH./HOUR) = 3.40 EFFECTIVE STREAM AREA(ACRES) = 1.20 TOTAL STREAM AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.04 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER ------------------------------------------------------------ RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 51.66 14.16 3.496 .58 19.48 2 2.26 19.70 2.868 .58 1.10 3 3.04 14.85 3.398 .58 1.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 56.73 21.42 2 45.25 21.78 3 55.07 21.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 56.73 TIME(MINUTES) = 14.161 EFFECTIVE AREA(ACRES) = 21.42 TOTAL AREA(ACRES) = 22.30 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 172.40 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (PRESSURE FLOW) ««< -------------------- DEPTH OF FLOW IN 30.0 INCH PIP3***E IS 24.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.3 UPSTREAM NODE ELEVATION = 1272.00 DOWNSTREAM NODE ELEVATION = 1268.50 FLOWLENGTH(FEET) = 170.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 56.73 TRAVEL TIME(MIN.) = .21 TC(MIN.) = 14.37 FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 •--------------------------------------=----------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.37 RAINFALL INTENSITY (INCH./HOUR) = 3.46 EFFECTIVE STREAM AREA(ACRES) = 21.42 TOTAL STREAM AREA(ACRES) = 22.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 56.73 **************************************************************************** FLOW PROCESS FROM NODE 173.10 TO NODE 172.40 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 950.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVATION = 1268.50 ELEVATION DIFFERENCE = 7.50 TC = .412*[( 950.00** 3.00)/( 7.50)]** .20 = 16.847 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.150 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 11.32 TOTAL AREA(ACRES) = 4.90 PEAK FLOW RATE(CFS) = 11.32 **************************************************************************** FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.85 RAINFALL INTENSITY (INCH./HOUR) = 3.15 EFFECTIVE STREAM AREA(ACRES) = 4.90 TOTAL STREAM AREA(ACRES) = 4.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.32 **************************************************************************** FLOW PROCESS FROM NODE 172.10 TO NODE 172.40 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1283.00 DOWNSTREAM ELEVATION = 1268.50 ELEVATION DIFFERENCE = 14.50 TC = .412*[( 1000.00** 3.00)/( 14.50)]** .20 = 15.227 r r **************************************************************************** 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 ************************** * FOOTHILL DRAIN HYDROLOGY, LATERAL E LINE B * Q 25 YR, NODE 69 TO NODE 198 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEE.DAT TIME/DATE OF STUDY: 16:31 1/ 1/1989 ------------------------------------------- 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE _ .6000 **************************************************************************** FLOW PROCESS FROM NODE 170.20 TO NODE 169.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ---------------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1272.50 ELEVATION DIFFERENCE = 22.50 TC = .412*[( 1000.00** 3.00)/( 22.50)]** .20 = 13.946 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.765 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 19.65 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 19.65 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 169.00 IS CODE = 1 -------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< --------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.95 RAINFALL INTENSITY (INCH./HOUR) = 2.76 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 19.65 FLOW PROCESS FROM NODE 170.10 TO NODE 169.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 850.00 UPSTREAM ELEVATION = 1283.10 DOWNSTREAM ELEVATION = 1272.50 ELEVATION DIFFERENCE = 10.60 TC = .412*[( 850.00** 3.00)/( 10.60)]** .20 = 14.706 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.678 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 18.87 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 18.87 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 169.00 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) = 14.71 RAINFALL INTENSITY (INCH./HOUR) = 2.68 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 18.87 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 19.65 13.95 2.765 .58 10.00 2 18.87 14.71 2.678 .58 10.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 38.28 19.48 2 37.73 20.00 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 38.28 TIME(MINUTES) = 13.946 EFFECTIVE AREA(ACRES) = 19.48 TOTAL AREA(ACRES) = 20.00 **************************************************************************** FLOW PROCESS FROM NODE 169.00 TO NODE 170.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA«« < »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ------------------------------------- DEPTH OF FLOW IN 36.0 INCH PIPE IS 25.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7.3 UPSTREAM NODE ELEVATION = 1272.50 DOWNSTREAM NODE ELEVATION = 1272.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 38.28 TRAVEL TIME(MIN.) = .23 TC(MIN.) = 14.18 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.18 RAINFALL INTENSITY (INCH./HOUR) = 2.74 EFFECTIVE STREAM AREA(ACRES) = 19.48 TOTAL STREAM AREA(ACRES) = 20.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 38.28 **************************************************************************** FLOW PROCESS FROM NODE 170.30 TO NODE 170.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< -------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVATION = 1272.00 ELEVATION DIFFERENCE = 4.00 TC = .412*[( 1000.00** 3.00)/( 4.00)]** .20 = 19.701 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.247 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.65 TOTAL AREA(ACRES) = 1.10 PEAK FLOW RATE(CFS) = 1.65 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 19.70 RAINFALL INTENSITY (INCH./HOUR) = 2.25 EFFECTIVE STREAM AREA(ACRES) = 1.10 TOTAL STREAM AREA(ACRES) = 1.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.65 ************************************************************************** FLOW PROCESS FROM NODE 170.40 TO NODE 170.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 900.00 UPSTREAM ELEVATION = 1284.00 DOWNSTREAM ELEVATION = 1272.00 ELEVATION DIFFERENCE = 12.00 TC = .412*[( 900.00** 3.00)/( 12.00)]** .20 = 14.846 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.663 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.25 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 2.25 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES«« < - ---------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.85 RAINFALL INTENSITY (INCH./HOUR) = 2.66 EFFECTIVE STREAM AREA(ACRES) = 1.20 TOTAL STREAM AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.25 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER ------------------------------------------------------------ RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 38.28 14.18 2.738 .58 19.48 2 1.65 19.70 2.247 .58 1.10 3 2.25 14.85 2.663 .58 1.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 42.04 21.42 2 33.01 21.78 3 40.75 21.51 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 42.04 TIME(MINUTES) = 14.175 EFFECTIVE AREA(ACRES) = 21.42 TOTAL AREA(ACRES) = 22.30 **************************************************************************** FLOW PROCESS FROM NODE 170.00 TO NODE 172.40 IS CODE = 3 »» >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ---------------------- DEPTH OF FLOW IN 27.0 INCH PIPE IS 21.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.4 UPSTREAM NODE ELEVATION = 1272.00 DOWNSTREAM NODE ELEVATION = 1268.50 FLOWLENGTH(FEET) = 170.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 42.04 TRAVEL TIME(MIN.) = .23 TC(MIN.) = 14.40 ************************************************************************** FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 -------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE«« < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.40 RAINFALL INTENSITY (INCH./HOUR) = 2.71 EFFECTIVE STREAM AREA(ACRES) = 21.42 TOTAL STREAM AREA(ACRES) = 22.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 42.04 **************************************************************************** FLOW PROCESS FROM NODE 173.10 TO NODE 172.40 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 950.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVATION = 1268.50 ELEVATION DIFFERENCE = 7.50 TC = .412*[( 950.00** 3.00)/( 7.50)]** .20 = 16.847 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.469 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 8.32 TOTAL AREA(ACRES) = 4.90 PEAK FLOW RATE(CFS) = 8.32 **************************************************************************** FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.85 RAINFALL INTENSITY (INCH./HOUR) = 2.47 EFFECTIVE STREAM AREA(ACRES) = 4.90 TOTAL STREAM AREA(ACRES) = 4.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.32 **************************************************************************** FLOW PROCESS FROM NODE 172.10 TO NODE 172.40 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1283.00 DOWNSTREAM ELEVATION = 1268.50 ELEVATION DIFFERENCE = 14.50 TC = .412*[( 1000.00** 3.00)/( 14.50)]** .20 = 15.227 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.623 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 9.73 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 9.73 FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< -------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 15.23 RAINFALL INTENSITY (INCH./HOUR) = 2.62 EFFECTIVE STREAM AREA(ACRES) = 5.30 TOTAL STREAM AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.73 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 42.04 14.40 2.712 .58 21.42 2 8.32 16.85 2.469 .58 4.90 3 9.73 15.23 2.623 .58 5.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 59.68 30.62 2 54.55 31.62 3 58.15 31.15 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 59.68 TIME(MINUTES) = 14.404 EFFECTIVE AREA(ACRES) = 30.62 TOTAL AREA(ACRES) = 32.50 FLOW PROCESS FROM NODE 172.40 TO NODE 171.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 42.0 INCH PIPE IS 30.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.1 UPSTREAM NODE ELEVATION = 1268.50 DOWNSTREAM NODE ELEVATION = 1268.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 59.68 TRAVEL TIME(MIN.) = .21 TC(MIN.) = 14.61 FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< --------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.61 RAINFALL INTENSITY (INCH./HOUR) = 2.69 EFFECTIVE STREAM AREA(ACRES) = 30.62 TOTAL STREAM AREA(ACRES) = 32.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 59.68 **************************************************************************** FLOW PROCESS FROM NODE 173.20 TO NODE 173.40 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 = 1281.94 DOWNSTREAM ELEVATION = 1273.56 ELEVATION DIFFERENCE = 8.38 TC = .304*[( 1000.00** 3.00)/( 8.38)]** .20 = 12.538 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.947 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 11.29 TOTAL AREA(ACRES) = 4.40 PEAK FLOW RATE(CFS) = 11.29 **************************************************************************** FLOW PROCESS FROM NODE 173.30 TO NODE 171.00 IS CODE = 6 -------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< --------------------------------- UPSTREAM ELEVATION = 1273.56 DOWNSTREAM ELEVATION = 1268.00 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 26.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 14.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 12.33 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .64 HALFSTREET FLOODWIDTH(FEET) = 14.19 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.42 PRODUCT OF DEPTH&VELOCITY = 2.20 STREETFLOW TRAVELTIME(MIN) = 3.65 TC(MIN) = 16.19 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.528 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.10 EFFECTIVE AREA(ACRES) = 5.60 AVERAGED Fm(INCH/HR) _ .201 TOTAL AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) = 11.73 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .64 HALFSTREET FLOODWIDTH(FEET) = 14.19 FLOW VELOCITY(FEET/SEC.) = 3.26 DEPTH*VELOCITY = 2.09 **************************************************************************** FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.19 RAINFALL INTENSITY (INCH./HOUR) = 2.53 EFFECTIVE STREAM AREA(ACRES) = 5.60 TOTAL STREAM AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.73 **************************************************************************** FLOW PROCESS FROM NODE 172.20 TO NODE 172.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------- DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1282.00 ELEVATION DIFFERENCE = 13.00 TC = .304*[( 650.00** 3.00)/( 13.00)]** .20 = 8.868 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.628 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA RUNOFF(CFS) = 16.84 TOTAL AREA(ACRES) = 5.30 PEAK FLOW RATE(CFS) = 16.84 **************************************************************************** FLOW PROCESS FROM NODE 172.30 TO NODE 171.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ------------------------- UPSTREAM ELEVATION = 1282.00 DOWNSTREAM ELEVATION = 1268.00 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 26.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 14.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 18.91 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) = .68 HALFSTREET FLOODWIDTH(FEET) = 15.94 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.58 PRODUCT OF DEPTH&VELOCITY = 3.10 STREETFLOW TRAVELTIME(MIN) = 3.64 TC(MIN) = 12.51 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.951 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 4.11 EFFECTIVE AREA(ACRES) = 6.90 AVERAGED Fm(INCH/HR) _ .097 TOTAL AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) = 17.73 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .66 HALFSTREET FLOODWIDTH(FEET) = 15.06 FLOW VELOCITY(FEET/SEC.) = 4.59 DEPTH*VELOCITY = 3.03 **************************************************************************** FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< - ----------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.51 RAINFALL INTENSITY (INCH./HOUR) = 2.95 EFFECTIVE STREAM AREA(ACRES) = 6.90 TOTAL STREAM AREA(ACRES) = 6.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 17.73 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 59.68 14.61 2.689 .58 30.62 2 11.73 16.19 2.528 .20 5.60 3 17.73 12.51 2.951 .10 6.90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 87.09 42.58 2 81.95 43.12 3 85.90 37.45 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 87.09 TIME(MINUTES) = 14.609 EFFECTIVE AREA(ACRES) = 42.58 TOTAL AREA(ACRES) = 45.00 **************************************************************************** FLOW PROCESS FROM NODE 171.00 TO NODE 197.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < - ------------------------- DEPTH OF FLOW IN 45.0 INCH PIPE IS 31.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.5 UPSTREAM NODE ELEVATION = 1268.00 DOWNSTREAM NODE ELEVATION = 1261.50 FLOWLENGTH(FEET) = 850.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 87.09 TRAVEL TIME(MIN.) = 1.35 TC(MIN.) = 15.96 **************************************************************************** FLOW PROCESS FROM NODE 197.10 TO NODE 197.00 IS CODE = 8 -------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.550 SOIL CLASSIFICATION IS "A" COMMERCIAL SUBAREA LOSS RATE, Fm(INCH/HR) _ .0970 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 7.73 EFFECTIVE AREA(ACRES) = 46.08 AVERAGED Fm(INCH/HR) _ .431 TOTAL AREA(ACRES) = 48.50 PEAK FLOW RATE(CFS) = 87.87 TC(MIN) = 15.96 **************************************************************************** FLOW PROCESS FROM NODE 197.00 TO NODE 198.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >> >>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ----------------------------------- DEPTH OF FLOW IN 39.0 INCH PIPE IS 27.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.3 UPSTREAM NODE ELEVATION = 1261.50 DOWNSTREAM NODE ELEVATION = 1257.50 FLOWLENGTH(FEET) = 230.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 87.87 TRAVEL TIME(MIN.) _ .27 TC(MIN.) = 16.23 ************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 -------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.23 RAINFALL INTENSITY (INCH./HOUR) = 2.52 EFFECTIVE STREAM AREA(ACRES) = 46.08 TOTAL STREAM AREA(ACRES) = 48.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 87.87 **************************************************************************** FLOW PROCESS FROM NODE 198.20 TO NODE 198.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< - ----------------------------- DEVELOPMENT IS CONDOMINIUMS TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1274.00 DOWNSTREAM ELEVATION = 1268.00 ELEVATION DIFFERENCE = 6.00 TC = .360*[( 1000.00** 3.00)/( 6.00)]** .20 = 15.873 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.558 SOIL CLASSIFICATION IS "A" CONDOMINIUMS SUBAREA LOSS RATE, Fm(INCH/HR) _ .3395 SUBAREA RUNOFF(CFS) = 3.79 TOTAL AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) = 3.79 **************************************************************************** FLOW PROCESS FROM NODE 198.10 TO NODE 198.30 IS CODE = 6 ---------------------------------------------------------------------------- ».»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION ELEVATION = 1268.00 DOWNSTREAM ELEVATION = 1265.00 STREET LENGTH(FEET) = 375.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 22.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.80 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .47 HALFSTREET FLOODWIDTH(FEET) = 8.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.86 PRODUCT OF DEPTH&VELOCITY = 1.34 STREETFLOW TRAVELTIME(MIN) = 2.19 TC(MIN) = 18.06 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.367 SOIL CLASSIFICATION IS "A" CONDOMINIUMS SUBAREA LOSS RATE, Fm(INCH/HR) _ .3395 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.01 EFFECTIVE AREA(ACRES) = 3.00 AVERAGED Fin(INCH/HR) _ .339 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 5.48 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .49 HALFSTREET FLOODWIDTH(FEET) = 9.25 FLOW VELOCITY(FEET/SEC.) = 2.94 DEPTH*VELOCITY = 1.44 **************************************************************************** FLOW PROCESS FROM NODE 198.40 TO NODE 198.30 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.367 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 2.89 EFFECTIVE AREA(ACRES) = 4.80 AVERAGED Fm(INCH/HR) _ .430 TOTAL AREA(ACRES) = 4.80 PEAK FLOW RATE(CFS) = 8.37 TC(MIN) = 18.06 **************************************************************************** FLOW PROCESS FROM NODE 198.30 TO NODE 198.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< -------------- UPSTREAM ELEVATION = 1265.00 DOWNSTREAM ELEVATION = 1257.50 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 22.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 9.76 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .58 HALFSTREET FLOODWIDTH(FEET) = 13.09 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.41 PRODUCT OF DEPTH&VELOCITY = 1.98 STREETFLOW TRAVELTIME(MIN) = 3.67 TC(MIN) = 21.73 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.119 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 2.77 EFFECTIVE AREA(ACRES) = 6.80 AVERAGED Fm(INCH/HR) _ .475 TOTAL AREA(ACRES) = 6.80 PEAK FLOW RATE(CFS) = 10.06 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .58 HALFSTREET FLOODWIDTH(FEET) = 13.09 FLOW VELOCITY(FEET/SEC.) = 3.51 DEPTH*VELOCITY = 2.04 5820 **************************************************************************** FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 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) = 21.73 RAINFALL INTENSITY (INCH./HOUR) = 2.12 EFFECTIVE STREAM AREA(ACRES) = 6.80 TOTAL STREAM AREA(ACRES) = 6.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.06 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 87.87 16.23 2.524 .43 46.08 2 10.06 21.73 2.119 .48 6.80 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 97.24 51.16 2 80.91 52.88 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 97.24 TIME(MINUTES) = 16.231 EFFECTIVE AREA(ACRES) = 51.16 TOTAL AREA(ACRES) = 55.30 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 55.30 EFFECTIVE AREA(ACRES) = 51.16 PEAK FLOW RATE(CFS) = 97.24 END OF RATIONAL METHOD ANALYSIS 1, 0 **************************************************************************** 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 ************************** * FOOTHILL DRAIN HYDROLOGY, LATERAL G LINE B * Q 100 YR, NODE 130.1 TO NODE 140 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEG.DAT TIME/DATE OF STUDY: 15:41 1/ 1/1989 ------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ------------------ --*TIME-OF-CONCENTRATION MODEL* -- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 19.00 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) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE _ .6000 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 780.00 UPSTREAM ELEVATION = 1235.50 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 19.50 TC = .412*[( 780.00** 3.00)/( 19.50)]** .20 = 12.364 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.792 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 10.11 TOTAL AREA(ACRES) = 3.50 PEAK FLOW RATE(CFS) = 10.11 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 IS CODE = 1 --------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< -------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.36 RAINFALL INTENSITY (INCH./HOUR) = 3.79 EFFECTIVE STREAM AREA(ACRES) = 3.50 TOTAL STREAM AREA(ACRES) = 3.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.11 **************************************************************************** FLOW PROCESS FROM NODE 130.20 TO NODE 130.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 750.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 5.00 TC = .412*[( 750.00** 3.00)/( 5.00)]** .20 = 15.854 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.267 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 3.87 TOTAL AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) = 3.87 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 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) = 15.85 RAINFALL INTENSITY (INCH./HOUR) = 3.27 EFFECTIVE STREAM AREA(ACRES) = 1.60 TOTAL STREAM AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.87 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 10.11 12.36 3.792 .58 3.50 2 3.87 15.85 3.267 .58 1.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 13.72 4.75 2 12.32 5.10 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 13.72 TIME(MINUTES) = 12.364 EFFECTIVE AREA(ACRES) = 4.75 TOTAL AREA(ACRES) = 5.10 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.50 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< -- -------------- DEPTH OF FLOW IN 21.0 INCH PIPE IS 15.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 7.3 UPSTREAM NODE ELEVATION = 1216.00 DOWNSTREAM NODE ELEVATION = 1215.50 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 13.72 TRAVEL TIME(MIN.) = .11 TC(MIN.) = 12.48 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.48 RAINFALL INTENSITY (INCH./HOUR) = 3.77 EFFECTIVE STREAM AREA(ACRES) = 4.75 TOTAL STREAM AREA(ACRES) = 5.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.72 **************************************************************************** FLOW PROCESS FROM NODE 130.30 TO NODE 130.50 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1233.00 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 17.00 TC = .412*[( 1000.00** 3.00)/( 17.00)]** .20 = 14.751 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.411 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 15.79 TOTAL AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) = 15.79 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 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) = 14.75 RAINFALL INTENSITY (INCH./HOUR) = 3.41 EFFECTIVE STREAM AREA(ACRES) = 6.20 TOTAL STREAM AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.79 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 13.72 12.48 3.771 .58 4.75 2 15.79 14.75 3.411 .58 6.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 28.77 9.99 2 27.96 10.95 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 28.77 TIME(MINUTES) = 12.479 EFFECTIVE AREA(ACRES) = 9.99 TOTAL AREA(ACRES) = 11.30 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA«« < »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ---------------------------- DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.8 UPSTREAM NODE ELEVATION = 1215.50 DOWNSTREAM NODE ELEVATION = 1214.80 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 28.77 TRAVEL TIME(MIN.) = .57 TC(MIN.) = 13.05 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.05 RAINFALL INTENSITY (INCH./HOUR) = 3.67 EFFECTIVE STREAM AREA(ACRES) = 9.99 TOTAL STREAM AREA(ACRES) = 11.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 28.77 **************************************************************************** FLOW PROCESS FROM NODE 135.20 TO NODE 130.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< ------------------------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1218.00 DOWNSTREAM ELEVATION = 1214.00 ELEVATION DIFFERENCE = 4.00 TC = .412*[( 650.00** 3.00)/( 4.00)]** .20 = 15.214 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.349 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.99 TOTAL AREA(ACRES) = .80 PEAK FLOW RATE(CFS) = 1.99 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 -------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.21 RAINFALL INTENSITY (INCH./HOUR) = 3.35 EFFECTIVE STREAM AREA(ACRES) _ .80 TOTAL STREAM AREA(ACRES) = .80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.99 **************************************************************************** FLOW PROCESS FROM NODE 130.40 TO NODE 130.00 IS.CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ------------------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 800.00 UPSTREAM ELEVATION = 1218.50 DOWNSTREAM ELEVATION = 1214.80 ELEVATION DIFFERENCE = 3.70 TC = .412*[( 800.00** 3.00)/( 3.70)]** .20 = 17.503 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.079 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.57 TOTAL AREA(ACRES) = .70 PEAK FLOW RATE(CFS) = 1.57 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< - ------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 17.50 RAINFALL INTENSITY (INCH./HOUR) = 3.08 EFFECTIVE STREAM AREA(ACRES) _ .70 TOTAL STREAM AREA(ACRES) = .70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.57 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 28.77 13.05 3.672 .58 9.99 2 1.99 15.21 3.349 .58 .80 3 1.57 17.50 3.079 .58 .70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 32.13 11.20 2 29.27 11.40 3 26.62 11.49 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 32.13 TIME(MINUTES) = 13.049 EFFECTIVE AREA(ACRES) = 11.20 TOTAL AREA(ACRES) = 12.80 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 131.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 36.0 INCH PIPE IS 28.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.4 UPSTREAM NODE ELEVATION = 1214.80 DOWNSTREAM NODE ELEVATION = 1214.00 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 32.13 TRAVEL TIME(MIN.) = .92 TC(MIN.) = 13.97 **************************************************************************** FLOW PROCESS FROM NODE 131.00 TO NODE 131.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.97 RAINFALL INTENSITY (INCH./HOUR) = 3.52 EFFECTIVE STREAM AREA(ACRES) = 11.20 TOTAL STREAM AREA(ACRES) = 12.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 32.13 **************************************************************************** FLOW PROCESS FROM NODE 131.10 TO NODE 131.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1217.10 DOWNSTREAM ELEVATION = 1215.00 ELEVATION DIFFERENCE = 2.10 TC = .412*[( 550.00** 3.00)/( 2.10)]** .20 = 15.656 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.292 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 5.85 TOTAL AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) = 5.85 FLOW PROCESS FROM NODE 131.20 TO NODE 131.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 19.000 DEPTH OF FLOW IN 19.0 INCH PIPE IS 9.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.0 UPSTREAM NODE ELEVATION = 1215.00 DOWNSTREAM NODE ELEVATION = 1214.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 19.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 5.85 TRAVEL TIME(MIN.) _ .28 TC(MIN.) = 15.93 FLOW PROCESS FROM NODE 131.00 TO NODE 131.00 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) = 15.93 RAINFALL INTENSITY (INCH./HOUR) = 3.26 EFFECTIVE STREAM AREA(ACRES) = 2.40 TOTAL STREAM AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 5.85 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 32.13 13.97 3.524 .58 11.20 2 5.85 15.93 3.257 .58 2.40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 37.78 13.31 2 35.07 13.60 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 37.78 TIME(MINUTES) = 13.974 EFFECTIVE AREA(ACRES) = 13.31 TOTAL AREA(ACRES) = 15.20 FLOW PROCESS FROM NODE 131.00 TO NODE 132.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ----------------------- DEPTH OF FLOW IN 30.0 INCH PIPE IS 23.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.1 UPSTREAM NODE ELEVATION = 1214.00 DOWNSTREAM NODE ELEVATION = 1208.00 FLOWLENGTH(FEET) = 620.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 37.78 TRAVEL TIME(MIN.) = 1.13 TC(MIN.) = 15.11 FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< -------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.11 RAINFALL INTENSITY (INCH./HOUR) = 3.36 EFFECTIVE STREAM AREA(ACRES) = 13.31 TOTAL STREAM AREA(ACRES) = 15.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 37.78 **************************************************************************** FLOW PROCESS FROM NODE 140.80 TO NODE 132.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ----------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1500.00 UPSTREAM ELEVATION = 1217.00 DOWNSTREAM ELEVATION = 1208.00 ELEVATION DIFFERENCE = 9.00 TC = .412*[( 1500.00** 3.00)/( 9.00)]** .20 = 21.365 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.731 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 3.48 TOTAL AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) = 3.48 ************************************************************************** FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 -------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 21.37 RAINFALL INTENSITY (INCH./HOUR) = 2.73 EFFECTIVE STREAM AREA(ACRES) = 1.80 TOTAL STREAM AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.48 **************************************************************************** FLOW PROCESS FROM NODE 132.10 TO NODE 132.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< -------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 520.00 UPSTREAM ELEVATION = 1217.10 DOWNSTREAM ELEVATION = 1209.50 ELEVATION DIFFERENCE = 7.60 TC = .412*[( 520.00** 3.00)/( 7.60)]** .20 = 11.704 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.919 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 14.12 TOTAL AREA(ACRES) = 4.70 PEAK FLOW RATE(CFS) = 14.12 FLOW PROCESS FROM NODE 132.30 TO NODE 132.40 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.) = 5.6 UPSTREAM NODE ELEVATION = 1209.50 DOWNSTREAM NODE ELEVATION = 1209.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 14.12 TRAVEL TIME(MIN.) = .30 TC(MIN.) = 12.00 FLOW PROCESS FROM NODE 132.20 TO NODE 132.40 IS CODE = 8 ---------------------------------------------------------------------------- »» >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.861 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 9.74 EFFECTIVE AREA(ACRES) = 8.00 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 8.00 PEAK FLOW RATE(CFS) = 23.61 TC(MIN) = 12.00 FLOW PROCESS FROM NODE 132.40 TO NODE 132.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < DEPTH OF FLOW IN 27.0 INCH PIPE IS 18.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.4 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1208.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.61 TRAVEL TIME(MIN.) = .20 TC(MIN.) = 12.20 FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< -------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.20 RAINFALL INTENSITY (INCH./HOUR) = 3.82 EFFECTIVE STREAM AREA(ACRES) = 8.00 TOTAL STREAM AREA(ACRES) = 8.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.61 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 37.78 15.11 3.363 .58 13.31 2 3.48 21.37 2.731 .58 1.80 3 23.61 12.20 3.823 .58 8.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 61.22 22.58 2 48.34 23.11 3 62.16 19.77 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 62.16 TIME(MINUTES) = 12.199 EFFECTIVE AREA(ACRES) = 19.77 TOTAL AREA(ACRES) = 25.00 FLOW PROCESS FROM NODE 132.00 TO NODE 140.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 36.0 INCH PIPE IS 25.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.6 UPSTREAM NODE ELEVATION = 1208.00 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 62.16 TRAVEL TIME(MIN.) = .22 TC(MIN.) = 12.41 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 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) = 12.41 RAINFALL INTENSITY (INCH./HOUR) = 3.78 EFFECTIVE STREAM AREA(ACRES) = 19.77 TOTAL STREAM AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 62.16 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 62.16 12.41 3.783 .58 19.77 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 62.16 19.77 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 62.16 TIME(MINUTES) = 12.414 EFFECTIVE AREA(ACRES) = 19.77 TOTAL AREA(ACRES) = 25.00 END OF STUDY SUMMARY: - ----------- TOTAL AREA(ACRES) = 25.00 EFFECTIVE AREA(ACRES) = 19.77 PEAK FLOW RATE(CFS) = 62.16 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 # 100908 Especially prepared for: HALL & FOREMAN ************************** DESCRIPTION OF STUDY ************************** * FOOTHILL DRAIN HYDROLOGY, LATERAL G LINE B * Q 25 YR, NODE 130.1 TO NODE 140 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEG.DAT TIME/DATE OF STUDY: 15:43 1/ 1/1989 ---------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ------------------ --*TIME-OF-CONCENTRATION MODEL* -- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 19.00 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) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE _ .6000 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 780.00 UPSTREAM ELEVATION = 1235.50 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 19.50 TC = .412*[( 780.00** 3.00)/( 19.50)]** .20 = 12.364 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.972 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 7.53 TOTAL AREA(ACRES) = 3.50 PEAK FLOW RATE(CFS) = 7.53 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 IS CODE = 1 --------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ------------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.36 RAINFALL INTENSITY (INCH./HOUR) = 2.97 EFFECTIVE STREAM AREA(ACRES) = 3.50 TOTAL STREAM AREA(ACRES) = 3.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 7.53 **************************************************************************** FLOW PROCESS FROM NODE 130.20 TO NODE 130.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< ------------------------------------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 750.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 5.00 TC = .412*[( 750.00** 3.00)/( 5.00)]** .20 = 15.854 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.560 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.85 TOTAL AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) = 2.85 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 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) = 15.85 RAINFALL INTENSITY (INCH./HOUR) = 2.56 EFFECTIVE STREAM AREA(ACRES) = 1.60 TOTAL STREAM AREA(ACRES) = 1.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.85 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 7.53 12.36 2.972 .58 3.50 2 2.85 15.85 2.560 .58 1.60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 10.21 4.75 2 9.08 5.10 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 10.21 TIME(MINUTES) = 12.364 EFFECTIVE AREA(ACRES) = 4.75 TOTAL AREA(ACRES) = 5.10 **************************************************************************** FLOW PROCESS FROM NODE 130.10 TO NODE 130.50 IS CODE = 3 --------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< -------------------------------------------- ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 19.000 DEPTH OF FLOW IN 19.0 INCH PIPE IS 13.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.8 UPSTREAM NODE ELEVATION = 1216.00 DOWNSTREAM NODE ELEVATION = 1215.50 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 19.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 10.21 TRAVEL TIME(MIN.) = .12 TC(MIN.) = 12.49 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.49 RAINFALL INTENSITY (INCH./HOUR) = 2.95 EFFECTIVE STREAM AREA(ACRES) = 4.75 TOTAL STREAM AREA(ACRES) = 5.10 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.21 **************************************************************************** FLOW PROCESS FROM NODE 130.30 TO NODE 130.50 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1233.00 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 17.00 TC = .412*[( 1000.00** 3.00)/( 17.00)]** .20 = 14.751 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.673 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 11.67 TOTAL AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) = 11.67 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 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) = 14.75 RAINFALL INTENSITY (INCH./HOUR) = 2.67 EFFECTIVE STREAM AREA(ACRES) = 6.20 TOTAL STREAM AREA(ACRES) = 6.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.67 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 10.21 12.49 2.954 .58 4.75 2 11.67 14.75 2.673 .58 6.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 21.42 10.00 2 20.67 10.95 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 21.42 TIME(MINUTES) = 12.487 EFFECTIVE AREA(ACRES) = 10.00 TOTAL AREA(ACRES) = 11.30 **************************************************************************** FLOW PROCESS FROM NODE 130.50 TO NODE 130.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 30.0 INCH PIPE IS 22.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.5 UPSTREAM NODE ELEVATION = 1215.50 DOWNSTREAM NODE ELEVATION = 1214.80 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 21.42 TRAVEL TIME(MIN.) = .61 TC(MIN.) = 13.10 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.10 RAINFALL INTENSITY (INCH./HOUR) = 2.87 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 11.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 21.42 **************************************************************************** FLOW PROCESS FROM NODE 135.20 TO NODE 130.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ----------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1218.00 DOWNSTREAM ELEVATION = 1214.00 ELEVATION DIFFERENCE = 4.00 TC = .412*[( 650.00** 3.00)/( 4.00)]** .20 = 15.214 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.624 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.47 TOTAL AREA(ACRES) = .80 PEAK FLOW RATE(CFS) = 1.47 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.21 RAINFALL INTENSITY (INCH./HOUR) = 2.62 EFFECTIVE STREAM AREA(ACRES) _ .80 TOTAL STREAM AREA(ACRES) = .80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.47 **************************************************************************** FLOW PROCESS FROM NODE 130.40 TO NODE 130.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 800.00 UPSTREAM ELEVATION = 1218.50 DOWNSTREAM ELEVATION = 1214.80 ELEVATION DIFFERENCE = 3.70 TC = .412*[( 800.00** 3.00)/( 3.70)]** .20 = 17.503 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.413 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.15 TOTAL AREA(ACRES) = .70 PEAK FLOW RATE(CFS) = 1.15 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 17.50 RAINFALL INTENSITY (INCH./HOUR) = 2.41 EFFECTIVE STREAM AREA(ACRES) _ .70 TOTAL STREAM AREA(ACRES) = .70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.15 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER ------------------------------------------------------------ RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 21.42 13.10 2.871 .58 10.00 2 1.47 15.21 2.624 .58 .80 3 1.15 17.50 2.413 .58 .70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 23.92 11.21 2 21.70 11.40 3 19.60 11.50 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 23.92 TIME(MINUTES) = 13.098 EFFECTIVE AREA(ACRES) = 11.21 TOTAL AREA(ACRES) = 12.80 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 131.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< --------------- DEPTH OF FLOW IN 33.0 INCH PIPE IS 24.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.1 UPSTREAM NODE ELEVATION = 1214.80 DOWNSTREAM NODE ELEVATION = 1214.00 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.92 TRAVEL TIME(MIN.) _ .99 TC(MIN.) = 14.08 **************************************************************************** FLOW PROCESS FROM NODE 131.00 TO NODE 131.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.08 RAINFALL INTENSITY (INCH./HOUR) = 2.75 EFFECTIVE STREAM AREA(ACRES) = 11.21 TOTAL STREAM AREA(ACRES) = 12.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 23.92 **************************************************************************** FLOW PROCESS FROM NODE 131.10 TO NODE 131.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------ DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1217.10 DOWNSTREAM ELEVATION = 1215.00 ELEVATION DIFFERENCE = 2.10 TC = .412*[( 550.00** 3.00)/( 2.10)]** .20 = 15.656 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.580 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 4.31 TOTAL AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) = 4.31 FLOW PROCESS FROM NODE 131.20 TO NODE 131.00 IS CODE = 3 ---------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < ----------------------------- ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 19.000 DEPTH OF FLOW IN 19.0 INCH PIPE IS 7.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.5 UPSTREAM NODE ELEVATION = 1215.00 DOWNSTREAM NODE ELEVATION = 1214.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 19.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 4.31 TRAVEL TIME(MIN.) = .30 TC(MIN.) = 15.96 FLOW PROCESS FROM NODE 131.00 TO NODE 131.00 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) = 15.96 RAINFALL INTENSITY (INCH./HOUR) = 2.55 EFFECTIVE STREAM AREA(ACRES) = 2.40 TOTAL STREAM AREA(ACRES) = 2.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.31 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) -------------------------------------------------------------- (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 23.92 14.08 2.749 .58 11.21 2 4.31 15.96 2.550 .58 2.40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) --------------------------------------------- AREA(ACRES) 1 28.11 13.33 2 26.04 13.61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 28.11 TIME(MINUTES) = 14.084 EFFECTIVE AREA(ACRES) = 13.33 TOTAL AREA(ACRES) = 15.20 FLOW PROCESS FROM NODE 131.00 TO NODE 132.00 IS CODE = 3 »» >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 27.0 INCH PIPE IS 20.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.5 UPSTREAM NODE ELEVATION = 1214.00 DOWNSTREAM NODE ELEVATION = 1208.00 FLOWLENGTH(FEET) = 620.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 28.11 TRAVEL TIME(MIN.) = 1.22 TC(MIN.) = 15.30 FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 -------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.30 RAINFALL INTENSITY (INCH./HOUR) = 2.62 EFFECTIVE STREAM AREA(ACRES) = 13.33 TOTAL STREAM AREA(ACRES) = 15.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 28.11 **************************************************************************** FLOW PROCESS FROM NODE 140.80 TO NODE 132.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1500.00 UPSTREAM ELEVATION = 1217.00 DOWNSTREAM ELEVATION = 1208.00 ELEVATION DIFFERENCE = 9.00 TC = .412*[( 1500.00** 3.00)/( 9.00)]** .20 = 21.365 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.141 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.52 TOTAL AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) = 2.52 FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 21.37 RAINFALL INTENSITY (INCH./HOUR) = 2.14 EFFECTIVE STREAM AREA(ACRES) = 1.80 TOTAL STREAM AREA(ACRES) = 1.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.52 **************************************************************************** FLOW PROCESS FROM NODE 132.10 TO NODE 132.20 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 520.00 UPSTREAM ELEVATION = 1217.10 DOWNSTREAM ELEVATION = 1209.50 ELEVATION DIFFERENCE = 7.60 TC = .412*[( 520.00** 3.00)/( 7.60)]** .20 = 11.704 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.071 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 10.53 TOTAL AREA(ACRES) = 4.70 PEAK FLOW RATE(CFS) = 10.53 FLOW PROCESS FROM NODE 132.30 TO NODE 132.40 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < DEPTH OF FLOW IN 21.0 INCH PIPE IS 16.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.2 UPSTREAM NODE ELEVATION = 1209.50 DOWNSTREAM NODE ELEVATION = 1209.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 10.53 TRAVEL TIME(MIN.) _ .32 TC(MIN.) = 12.03 FLOW PROCESS FROM NODE 132.20 TO NODE 132.40 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.022 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 7.25 EFFECTIVE AREA(ACRES) = 8.00 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 8.00 PEAK FLOW RATE(CFS) = 17.57 TC(MIN) = 12.03 FLOW PROCESS FROM NODE 132.40 TO NODE 132.00 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.) = 7.8 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1208.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 17.57 TRAVEL TIME(MIN.) _ .21 TC(MIN.) = 12.24 FLOW PROCESS FROM NODE 132.00 TO NODE 132.00 IS CODE = 1 »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< ---------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.24 RAINFALL INTENSITY (INCH./HOUR) = 2.99 EFFECTIVE STREAM AREA(ACRES) = 8.00 TOTAL STREAM AREA(ACRES) = 8.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 17.57 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 28.11 15.30 2.615 .58 13.33 2 2.52 21.37 2.141 .58 1.80 3 17.57 12.24 2.990 .58 8.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 45.30 22.62 2 35.44 23.13 3 46.43 19.69 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 46.43 TIME(MINUTES) = 12.240 EFFECTIVE AREA(ACRES) = 19.69 TOTAL AREA(ACRES) = 25.00 FLOW PROCESS FROM NODE 132.00 TO NODE 140.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 33.0 INCH PIPE IS 22.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.9 UPSTREAM NODE ELEVATION = 1208.00 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 46.43 TRAVEL TIME(MIN.) = .23 TC(MIN.) = 12.47 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 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) = 12.47 RAINFALL INTENSITY (INCH./HOUR) = 2.96 EFFECTIVE STREAM AREA(ACRES) = 19.69 TOTAL STREAM AREA(ACRES) = 25.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 46.43 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 46.43 12.47 2.957 .58 19.69 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) 1 46.43 19.69 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 46.43 TIME(MINUTES) = 12.470 EFFECTIVE AREA(ACRES) = 19.69 TOTAL AREA(ACRES) = 25.00 END OF STUDY SUMMARY: ------------ TOTAL AREA(ACRES) = 25.00 EFFECTIVE AREA(ACRES) = 19.69 PEAK FLOW RATE(CFS) = 46.43 END OF RATIONAL METHOD ANALYSIS �r I I I 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 ************************** DESCRIPTION OF STUDY ************************** * FOOTHILL DRAIN HYDROLOGY LATERAL C LINE B * Q 100 YR FROM NODE 60 TO NODE 120 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEC.DAT TIME/DATE OF STUDY: 14:34 1/ 1/1989 ------------------------------------ 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 60.10 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ----------------------- -- ----------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 820.00 UPSTREAM ELEVATION = 1238.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 14.50 TC = .412*[( 820.00** 3.00)/( 14.50)]** .20 = 13.518 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.595 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 27.11 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 27.11 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 --------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.52 RAINFALL INTENSITY (INCH./HOUR) = 3.59 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 27.11 FLOW PROCESS FROM NODE 60.30 TO NODE 60.00 IS*'CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS «« < DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 8.50 TC = .412*[( 1000.00** 3.00)/( 8.50)]** .20 = 16.944 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.139 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.30 TOTAL AREA(ACRES) = 1.00 PEAK FLOW RATE(CFS) = 2.30 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.94 RAINFALL INTENSITY (INCH./HOUR) = 3.14 EFFECTIVE STREAM AREA(ACRES) = 1.00 TOTAL STREAM AREA(ACRES) = 1.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.30 **************************************************************************** FLOW PROCESS FROM NODE 60.20 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1228.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 4.50 TC = .412*[( 550.00** 3.00)/( 4.50)]** .20 = 13.442 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.607 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.09 TOTAL AREA(ACRES) _ .40 PEAK FLOW RATE(CFS) = 1.09 FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES ««< - -------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 13.44 RAINFALL INTENSITY (INCH./HOUR) = 3.61 EFFECTIVE STREAM AREA(ACRES) _ .40 TOTAL STREAM AREA(ACRES) = .40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.09 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY NUMBER ---------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) 1 27.11 13.52 3.595 2 2.30 16.94 3.139 3 1.09 13.44 3.607 FM EFFECTIVE (IN/HR) AREA(ACRES) --------------------- .58 10.00 .58 1.00 .58 .40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 30.36 11.20 2 26.24 11.40 3 30.32 11.14 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 30.36 TIME(MINUTES) = 13.518 EFFECTIVE AREA(ACRES) = 11.20 TOTAL AREA(ACRES) = 11.40 FLOW PROCESS FROM NODE 60.00 TO NODE 70.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< --------------------------- DEPTH OF FLOW IN 24.0 INCH PIPE IS 19.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1223.50 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 260.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 30.36 TRAVEL TIME(MIN.) = .39 TC(MIN.) = 13.91 FLOW PROCESS FROM NODE 70.10 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.534 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) = 7.70 EFFECTIVE AREA(ACRES) = 14.10 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 14.30 PEAK FLOW RATE(CFS) = 37.45 TC(MIN) = 13.91 FLOW PROCESS FROM NODE 70.20 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.534 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 4.78 EFFECTIVE AREA(ACRES) = 15.90 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 16.10 PEAK FLOW RATE(CFS) = 42.23 TC(MIN) = 13.91 FLOW PROCESS FROM NODE 70.00 TO NODE 75.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<< <<< DEPTH OF OF FLOW IN 33.0 INCH PIPE IS 22.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.7 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 42.23 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 13.99 FLOW PROCESS FROM NODE 70.40 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.521 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 7.14 EFFECTIVE AREA(ACRES) = 18.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 18.80 PEAK FLOW RATE(CFS) = 49.19 TC(MIN) = 13.99 FLOW PROCESS FROM NODE 70.30 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.521 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 6.70 SUBAREA RUNOFF(CFS) = 17.72 EFFECTIVE AREA(ACRES) = 25.30 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 25.50 PEAK FLOW RATE(CFS) = 66.91 TC(MIN) = 13.99 FLOW PROCESS FROM NODE 75.00 TO NODE 120.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < DEPTH OF FLOW IN 36.0 INCH PIPE IS 27.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.5 UPSTREAM NODE ELEVATION = 1218.00 DOWNSTREAM NODE ELEVATION = 1215.00 FLOWLENGTH(FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 66.91 TRAVEL TIME(MIN.) = .36 TC(MIN.) = 14.36 FLOW PROCESS FROM NODE 120.20 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.467 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 13.24 EFFECTIVE AREA(ACRES) = 30.40 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 30.60 PEAK FLOW RATE(CFS) = 78.93 TC(MIN) = 14.36 FLOW PROCESS FROM NODE 120.10 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.467 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 10.13 EFFECTIVE AREA(ACRES) = 34.30 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 89.05 TC(MIN) = 14.36 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) = 14.36 RAINFALL INTENSITY (INCH./HOUR) = 3.47 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 89.05 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 89.05 14.36 3.467 .58 34.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 89.05 34.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 89.05 TIME(MINUTES) = 14.358 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 END OF STUDY SUMMARY: TOTAL AREA(ACRES) = 34.50 EFFECTIVE AREA(ACRES) = 34.30 PEAK FLOW RATE(CFS) = 89.05 END OF RATIONAL METHOD ANALYSIS i 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 . ************************** DESCRIPTION OF STUDY ************************** * FOOTHILL DRAIN HYDROLOGY LATERAL C LINE B * Q 25 YR, FROM NODE 60 TO NODE 120 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEC.DAT TIME/DATE OF STUDY: 14:36 1/ 1/1989 ---------------------------------- 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 60.10 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 820.00 UPSTREAM ELEVATION = 1238.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 14.50 TC = .412*[( 820.00** 3.00)/( 14.50)]** .20 = 13.518 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.817 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 20.12 TOTAL AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) = 20.12 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 --------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< ------------------------------ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.52 RAINFALL INTENSITY (INCH./HOUR) = 2.82 EFFECTIVE STREAM AREA(ACRES) = 10.00 TOTAL STREAM AREA(ACRES) = 10.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 20.12 FLOW PROCESS FROM NODE 60.30 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS«« < ------------------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 8.50 TC = .412*[( 1000.00** 3.00)/( 8.50)]** .20 = 16.944 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.460 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 1.69 TOTAL AREA(ACRES) = 1.00 PEAK FLOW RATE(CFS) = 1.69 **************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.94 RAINFALL INTENSITY (INCH./HOUR) = 2.46 EFFECTIVE STREAM AREA(ACRES) = 1.00 TOTAL STREAM AREA(ACRES) = 1.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1.69 **************************************************************************** FLOW PROCESS FROM NODE 60.20 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1228.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 4.50 TC = .412*[( 550.00** 3.00)/( 4.50)]** .20 = 13.442 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.827 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = .81 TOTAL AREA(ACRES) = .40 PEAK FLOW RATE(CFS) = .81 ************************************************************************** FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< »»>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES««< -------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 13.44 RAINFALL INTENSITY (INCH./HOUR) = 2.83 EFFECTIVE STREAM AREA(ACRES) _ .40 TOTAL STREAM AREA(ACRES) _ .40 PEAK FLOW RATE(CFS) AT CONFLUENCE _ .81 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER -------------------------------------------------------------- RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) 1 20.12 13.52 2.817 .58 10.00 2 1.69 16.94 2.460 .58 1.00 3 .81 13.44 2.827 .58 .40 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER --------------------------------------------- Q(CFS) AREA(ACRES) 1 22.53 11.20 2 19.27 11.40 3 22.50 11.14 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 22.53 TIME(MINUTES) = 13.518 EFFECTIVE AREA(ACRES) = 11.20 TOTAL AREA(ACRES) = 11.40 FLOW PROCESS FROM NODE 60.00 TO NODE 70.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1223.50 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 260.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 22.53 TRAVEL TIME(MIN.) _ .41 TC(MIN.) = 13.93 FLOW PROCESS FROM NODE 70.10 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<< <<< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.767 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) = 5.70 EFFECTIVE AREA(ACRES) = 14.10 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 14.30 PEAK FLOW RATE(CFS) = 27.73 TC(MIN) = 13.93 FLOW PROCESS FROM NODE 70.20 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.767 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 3.54 EFFECTIVE AREA(ACRES) = 15.90 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 16.10 PEAK FLOW RATE(CFS) = 31.27 TC(MIN) = 13.93 FLOW PROCESS FROM NODE 70.00 TO NODE 75.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ------------------------------------------- DEPTH OF FLOW IN 30.0 INCH PIPE IS 20.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.0 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 31.27 TRAVEL TIME(MIN.) _ .09 TC(MIN.) = 14.02 FLOW PROCESS FROM NODE 70.40 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.756 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 5.28 EFFECTIVE AREA(ACRES) = 18.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 18.80 PEAK FLOW RATE(CFS) = 36.40 TC(MIN) = 14.02 FLOW PROCESS FROM NODE 70.30 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.756 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 6.70 SUBAREA RUNOFF(CFS) = 13.11 EFFECTIVE AREA(ACRES) = 25.30 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 25.50 PEAK FLOW RATE(CFS) = 49.51 TC(MIN) = 14.02 FLOW PROCESS FROM NODE 75.00 TO NODE 120.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »» >USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<< <<< ---------------------------------------- DEPTH OF FLOW IN 33.0 INCH PIPE IS 24.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.7 UPSTREAM NODE ELEVATION = 1218.00 DOWNSTREAM NODE ELEVATION = 1215.00 FLOWLENGTH(FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 49.51 TRAVEL TIME(MIN.) = .39 TC(MIN.) = 14.41 FLOW PROCESS FROM NODE 120.20 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.712 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820. SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 9.77 EFFECTIVE AREA(ACRES) = 30.40 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 30.60 PEAK FLOW RATE(CFS) = 58.26 TC(MIN) = 14.41 FLOW PROCESS FROM NODE 120.10 TO NODE 120.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.712 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 7.47 EFFECTIVE AREA(ACRES) = 34.30 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) = 65.74 TC(MIN) = 14.41 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) = 14.41 RAINFALL INTENSITY (INCH./HOUR) = 2.71 EFFECTIVE STREAM AREA(ACRES) = 34.30 TOTAL STREAM AREA(ACRES) = 34.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 65.74 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 65.74 14.41 2.712 .58 34.30 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 65.74 34.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 65.74 TIME(MINUTES) = 14.406 EFFECTIVE AREA(ACRES) = 34.30 TOTAL AREA(ACRES) = 34.50 END OF STUDY SUMMARY: ------------------------------------- TOTAL AREA(ACRES) = 34.50 EFFECTIVE AREA(ACRES) = 34.30 PEAK FLOW RATE(CFS) = 65.74 END OF RATIONAL METHOD ANALYSIS ''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 ************************** * FOOTHILL DRAIN HYDROLOGY LATERAL H LINE B * Q 100 YR FROM NODE 140.2 TO NODE 140 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEH.DAT TIME/DATE OF STUDY: 15: 6 1/ 1/1989 ----------------------------- 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE _ .6000 **************************************************************************** FLOW PROCESS FROM NODE 140.20 TO NODE 140.90 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< --------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 12.00 TC = .412*[( 1000.00** 3.00)/( 12.00)]** .20 = 15.815 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.272 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 18.88 TOTAL AREA(ACRES) = 7.80 PEAK FLOW RATE(CFS) = 18.88 **************************************************************************** FLOW PROCESS FROM NODE 140.90 TO NODE 141.00 IS CODE = 3 --------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) ««< ---------------------- DEPTH OF FLOW IN 18.0 INCH PIPE IS 14.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH(FEET) = 80.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 18.88 TRAVEL TIME(MIN.) = .10 TC(MIN.) = 15.92 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.92 RAINFALL INTENSITY (INCH./HOUR) = 3.26 EFFECTIVE STREAM AREA(ACRES) = 7.80 TOTAL STREAM AREA(ACRES) = 7.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 18.88 **************************************************************************** FLOW PROCESS FROM NODE 140.50 TO NODE 140.50 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1218.00 DOWNSTREAM ELEVATION = 1211.00 ELEVATION DIFFERENCE = 7.00 TC = .412*[( 650.00** 3.00)/( 7.00)]** .20 = 13.603 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.581 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 8.10 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 8.10 **************************************************************************** FLOW PROCESS FROM NODE 140.60 TO NODE 150.10 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 1300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 9.77 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .57 HALFSTREET FLOODWIDTH(FEET) = 11.22 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.66 PRODUCT OF DEPTH&VELOCITY = 2.08 STREETFLOW TRAVELTIME(MIN) = 5.91 TC(MIN) = 19.51 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.884 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 3.31 EFFECTIVE AREA(ACRES) = 4.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) = 9.53 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .55 HALFSTREET FLOODWIDTH(FEET) = 10.91 FLOW VELOCITY(FEET/SEC.) = 3.77 DEPTH*VELOCITY = 2.09 **************************************************************************** --FLOW-PROCESS FROM NODE 140.50 TO NODE 150.10 IS CODE = 6 ----------------------------------- --»»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< - UPSTREAM ELEVATION = 1211.00 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 200.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 9.53 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .52 HALFSTREET FLOODWIDTH(FEET) = 9.97 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.46 PRODUCT OF DEPTH&VELOCITY = 2.31 STREETFLOW TRAVELTIME(MIN) = .75 TC(MIN) = 20.26 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.820 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) _ .00 EFFECTIVE AREA(ACRES) = 4.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) = 9.53 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .52 HALFSTREET FLOODWIDTH(FEET) = 9.97 FLOW VELOCITY(FEET/SEC.) = 4.46 DEPTH*VELOCITY = 2.31 **************************************************************************** --FLOW PROCESS FROM NODE 140.40 TO NODE 150.10 IS CODE = 8 ----------------------------- ____ --»»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.820 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 3.83 EFFECTIVE AREA(ACRES) = 6.50 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 6.50 PEAK FLOW RATE(CFS) = 13.09 TC(MIN) = 20.26 FLOW PROCESS FROM NODE 150.10 TO NODE 141.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ----------------- DEPTH OF FLOW IN 30.0 INCH PIPE IS 21.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 3.5 UPSTREAM NODE ELEVATION = 1207.50 DOWNSTREAM NODE ELEVATION = 1206.50 FLOWLENGTH(FEET) = 680.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 13.09 TRAVEL TIME(MIN.) = 3.23 TC(MIN.) = 23.49 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 23.49 RAINFALL INTENSITY (INCH./HOUR) = 2.58 EFFECTIVE STREAM AREA(ACRES) = 6.50 TOTAL STREAM AREA(ACRES) = 6.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.09 FLOW PROCESS FROM NODE 140.30 TO NODE 140.30 IS CODE = 2 ------------------------------------------------------------------------ »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1211.30 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 2.30 TC = .412*[( 450.00** 3.00)/( 2.30)]** .20 = 13.629 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.577 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 3.23 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 3.23 **************************************************************************** FLOW PROCESS FROM NODE 150.20 TO NODE 141.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ----------------------------------------------- UPSTREAM ELEVATION = 1207.50 DOWNSTREAM ELEVATION = 1206.50 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.02 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .58 HALFSTREET FLOODWIDTH(FEET) = 11.53 AVERAGE FLOW VELOCITY(FEET/SEC.) = 1.43 PRODUCT OF DEPTH&VELOCITY = .83 STREETFLOW TRAVELTIME(MIN) = 7.57 TC(MIN) = 21.20 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.744 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = .80 SUBAREA RUNOFF(CFS) = 1.56 EFFECTIVE AREA(ACRES) = 2.00 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 2.00 PEAK FLOW RATE(CFS) = 3.89 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .57 HALFSTREET FLOODWIDTH(FEET) = 11.22 FLOW VELOCITY(FEET/SEC.) = 1.46 DEPTH*VELOCITY = .83 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 21.20 RAINFALL INTENSITY (INCH./HOUR) = 2.74 EFFECTIVE STREAM AREA(ACRES) = 2.00 TOTAL STREAM AREA(ACRES) = 2.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 3.89 **************************************************************************** FLOW PROCESS FROM NODE 140.70 TO NODE 141.00 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1208.00 DOWNSTREAM ELEVATION = 1206.00 ELEVATION DIFFERENCE = 2.00 TC = .412*[( 450.00** 3.00)/( 2.00)]** .20 = 14.016 100 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.518 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.38 TOTAL AREA(ACRES) = .90 PEAK FLOW RATE(CFS) = 2.38 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 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) = 14.02 RAINFALL INTENSITY (INCH./HOUR) = 3.52 EFFECTIVE STREAM AREA(ACRES) = .90 TOTAL STREAM AREA(ACRES) = .90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.38 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME NUMBER ---------------------------- RATE(CFS) (MIN.) 1 18.88 15.92 2 13.09 23.49 3 3.89 21.20 4 2.38 14.02 INTENSITY FM EFFECTIVE (INCH/HOUR) --------------------------------- (IN/HR) AREA(ACRES) 3.259 .58 7.80 2.580 .58 6.50 2.744 .58 2.00 3.518 .58 .90 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 4 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 36.55 14.61 2 32.40 17.20' 3 33.67 16.57 4 35.57 12.97 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 36.55 TIME(MINUTES) = 15.919 EFFECTIVE AREA(ACRES) = 14.61 TOTAL AREA(ACRES) = 17.20 FLOW PROCESS FROM NODE 141.00 TO NODE 140.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< »»>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< --------------------------------=------- DEPTH OF FLOW IN 36.0 INCH PIPE IS 28.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6.1 UPSTREAM NODE ELEVATION = 1206.50 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 120.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 36.55 TRAVEL TIME(MIN.) = .33 TC(MIN.) = 16.25 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 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) = 16.25 RAINFALL INTENSITY (INCH./HOUR) = 3.22 EFFECTIVE STREAM AREA(ACRES) = 14.61 TOTAL STREAM AREA(ACRES) = 17.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 36.55 CONFLUENCE INFORMATION: STREAM PEAK FLOW TIME INTENSITY FM EFFECTIVE NUMBER RATE(CFS) (MIN.) (INCH/HOUR) (IN/HR) AREA(ACRES) -------------------------------------------------------------- 1 36.55 16.25 3.219 .58 14.61 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 1 STREAMS. SUMMARY RESULTS: STREAM CONFLUENCE EFFECTIVE NUMBER Q(CFS) AREA(ACRES) --------------------------------------------- 1 36.55 14.61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 36.55 TIME(MINUTES) = 16.250 EFFECTIVE AREA(ACRES) = 14.61 TOTAL AREA(ACRES) = 17.20 END OF STUDY SUMMARY: -------------- TOTAL AREA(ACRES) = 17.20 EFFECTIVE AREA(ACRES) = 14.61 PEAK FLOW RATE(CFS) = 36.55 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 ************************** * FOOTHILL DRAIN HYDROLOGY, LATERAL H LINE B * Q 25 YR, FROM NODE 140.2 TO NODE 140 * V.N./J.M., JN 3366, 12/1/1988 ************************************************************************** FILE NAME: EVLINEH.DAT TIME/DATE OF STUDY: 15: 9 1/ 1/1989 --------------------------------------------------- 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 _ .95 *USER -DEFINED LOGARITHMIC INTERPOLATION USED FOR RAINFALL* 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 **************************************************************************** FLOW PROCESS FROM NODE 140.20 TO NODE 140.90 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 12.00 TC = .412*[( 1000.00** 3.00)/( 12.00)]** .20 = 15.815 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.564 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, FM(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 13.91 TOTAL AREA(ACRES) = 7.80 PEAK FLOW RATE(CFS) = 13.91 **************************************************************************** FLOW PROCESS FROM NODE 140.90 TO NODE 141.00 IS CODE = 3 •-------------------------------------------------------------------------- »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA«« < >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) «« < ---------------------------------------------- DEPTH OF FLOW IN 18.0 INCH PIPE IS 11.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.1 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH(FEET) = 80.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 13.91 TRAVEL TIME(MIN.) _ .11 TC(MIN.) = 15.92 FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE««< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.92 RAINFALL INTENSITY (INCH./HOUR) = 2.55 EFFECTIVE STREAM AREA(ACRES) = 7.80 TOTAL STREAM AREA(ACRES) = 7.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.91 **************************************************************************** FLOW PROCESS FROM NODE 140.50 TO NODE 140.50 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS ««< --------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1218.00 DOWNSTREAM ELEVATION = 1211.00 ELEVATION DIFFERENCE = 7.00 TC = .412*[( 650.00** 3.00)/( 7.00)]** .20 = 13.603 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.807 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 6.01 TOTAL AREA(ACRES) = 3.00 PEAK FLOW RATE(CFS) = 6.01 **************************************************************************** FLOW PROCESS FROM NODE 140.60 TO NODE 150.10 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ------------------------- UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 1300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) _ .020 OUTSIDE STREET CROSSFALL(DECIMAL) _ .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.21 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .52 HALFSTREET FLOODWIDTH(FEET) = 9.97 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.37 PRODUCT OF DEPTH&VELOCITY = 1.74 STREETFLOW TRAVELTIME(MIN) = 6.43 TC(MIN) = 20.03 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.225 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 2.37 EFFECTIVE AREA(ACRES) = 4.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) = 6.80 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 9.66 FLOW VELOCITY(FEET/SEC.) = 3.38 DEPTH*VELOCITY = 1.70 **************************************************************************** FLOW PROCESS FROM NODE 140.50 TO NODE 150.10 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< UPSTREAM ELEVATION = 1211.00 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 200.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 6.80 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) _ .47 HALFSTREET FLOODWIDTH(FEET) = 8.72 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.07 PRODUCT OF DEPTH&VELOCITY = 1.90 STREETFLOW TRAVELTIME(MIN) = .82 TC(MIN) = 20.85 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.172 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF(CFS) _ .00 EFFECTIVE AREA(ACRES) = 4.60 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) = 6.80 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .47 HALFSTREET FLOODWIDTH(FEET) = 8.72 FLOW VELOCITY(FEET/SEC.) = 4.07 DEPTH*VELOCITY = 1.90 **************************************************************************** FLOW PROCESS FROM NODE 140.40 TO NODE 150.10 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW««< 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.172 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 2.72 EFFECTIVE AREA(ACRES) = 6.50 AVERAGED Fm(INCH/HR) _ .582 TOTAL AREA(ACRES) = 6.50 PEAK FLOW RATE(CFS) = 9.30 TC(MIN) = 20.85 **************************************************************************** FLOW PROCESS FROM NODE 150.10 TO NODE 141.00 IS CODE = 3 »»>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA««< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 27.0 INCH PIPE IS 18.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 3.2 UPSTREAM NODE ELEVATION = 1207.50 DOWNSTREAM NODE ELEVATION = 1206.50 FLOWLENGTH(FEET) = 680.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 9.30 TRAVEL TIME(MIN.) = 3.50 TC(MIN.) = 24.35 **************************************************************************** FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- »»>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE«« < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 24.35 RAINFALL INTENSITY (INCH./HOUR) = 1.98 EFFECTIVE STREAM AREA(ACRES) = 6.50 TOTAL STREAM AREA(ACRES) = 6.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.30 �*************************************************************************** FLOW PROCESS FROM NODE 140.30 TO NODE 140.30 IS CODE = 2 ---------------------------------------------------------------------------- »»>RATIONAL METHOD INITIAL SUBAREA ANALYSIS««< ----------------------------------------- DEVELOPMENT IS SINGLE FAMILY RESIDENTIAL -> 3-4 DWELLINGS/ACRE TC = K*[(LENGTH** 3.00)/(ELEVATION CHANGE)]** .20 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1211.30 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 2.30 TC = .412*[( 450.00** 3.00)/( 2.30)]** .20 = 13.629 25 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.803 SOIL CLASSIFICATION IS "A" RESIDENTIAL-> 3-4 DWELLINGS/ACRE SUBAREA LOSS RATE, Fm(INCH/HR) _ .5820 SUBAREA RUNOFF(CFS) = 2.40 TOTAL AREA(ACRES) = 1.20 PEAK FLOW RATE(CFS) = 2.40 **************************************************************************** FLOW PROCESS FROM NODE 150.20 TO NODE 141.00 IS CODE = 6 ---------------------------------------------------------------------------- »»>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA««< ---------------------------------- UPSTREAM ELEVATION = 1207.50 DOWNSTREAM ELEVATION = 1206.50 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = 12.00 INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .040 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM - -------------- BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (C) Copyright 1.62 Advanced Engineering Software CAES3 Especially prepared for: HALL R FOREMAN, INC. (CC((CCCC<CC<<C<CCC<CC<<<((C<C(((<(CCO>>)>)>>>>>>>)))>>>>>))>>>>)>>>))>))>) **********DESCRIPTION OF *• FOOTHILL DRAIN HYDROLOGY LINE "A'' *• 0 25 YR, FROM NODE 10.1 TO NODE 607 * J.M. , JN 3834-002, 10/18/1988 *• *• �i i� ie*• •9i•iF •lr •k• 9E •}c *• •�• *• •1i• iF *••3F •)t #-k •)E• •ii••�• *• •�• •k•af•*• •k � dr •ii-•k� •K•-1(-•li• 9E •3i• •1F ai• iE *•iE aE• aF •k 9F •3i• •!i• *• *-*• *• •!r iE*• •if• •�• •3t �E •k *• iF• *• •3f• *• •�• dF •lt• *• •3r jE• •lE *• --------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 16.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1,1520 SLOPE OF INTENSITY DURATION CURVE = .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED Advanced Engineering Software CAES3 SERIAL No. A0580A REV. 3.i RELEASE DATE: 5/01/85 i:•aE*••rt•k•�E•�f••k••k••#•9i••ir�f•ii-*•*••k•k•�f•ii-*•9e-*••k•k•� �i•if••k•ii•*•�f•iE#-•1E•�F•k•ir•ii••3E•ii-ii•#�:•3t•iEit-•3r#•*•iE•i��E••k�F•if--�••k•iriF•k-�•k•3i•#•ii••k-k••�-iclE••3i•ie••1r#••k• FLOW PROCESS FROM NODE 10.10 TO NODE 10.10 IS CODE = 2 ---------------------------------------------------------------------------- }))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<(( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC _ K* C ( LENGTH*•#3) / (ELEVATION CHANGE) 3 *•*-. 2 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM REAM E=.LE:VA tiON = 1274.00 DOWNSTREAM ELEVATION = 1250.60 ELEVATION DIFFERENCE = 23.40 TC = . 193* C ( 1000. 00** -.3) / ( 23.40) 3 **•. 2 = 13.186 ES -00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.859 SOIL_ CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7400 SUBAREA RUNOFF(CFS) = 16.93 TOTAL AREA(ACRES) = 8.00 TOTAL RUNOFF(CFS) = 16.93 �:•-k•ie•*•k*•3i•�E•*ii�e••Y#•le•�•##•le••ii••�i•#•1�#�••k••ie••iE•aE•�#•�•-k••iF-ti••9i••lE•as-•JE••�••lr##•�•## �t#•�•#ii•�e••1N##•r:•-1i••*•#�c•#•�i•##ii•-li••k•##�•##•1i•##•�i•�: FLOW PROCESS FROM NODE 10.10 TO NODE 10.00 IS CODE = 6 ----------------------------------------------------------------------------- )))))COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<( UPSTREAM ELEVATION = 1250.60 DOWNSTREAM ELEVATION -=---1241.30 - ----- SiTREET LENGTH(FEET) = 600.00 CURB HEIGTH(INCHES) = 6. STREET I- ALFW I DTH ( FEE T) = 20.00 STREET CROSSFALL ( DEC I MAL) = . 0270 SPECIFIED NUMBER OF HAL_FSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 16.93 NOTE: STREETFLOW EXCEEDS TOP OF CURE. 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. STREETFLOWDEPTH(FEET) _ .55 HALFSTREET FLOODWIDTH(FEET) = 16.24 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.61 PRO1 'UC T OF DEPTH&VELOCI T Y = 2.56 :iTREETPLOW TRAVELTIME(MIN) = 2.17 TC(MIN) = 15.35 25.00 YEAR RAINFALL INTENSITYtINCH/HOUR) = 2,610 ARIL CLASSIFICATION 1S "A" INGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7255 SUBAREA AREA(ACRES) _ 0.00 SUBAREA RUNOFF(CFS) = 0.00 GUMMED AREA(ACRES) = 8.00 TOTAL RUNOFF(CFS) = 16.93 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .35 HALFSTREET FLOODWIDTH(FEET) = 16.24 FLOW VELOCITY (FEET/SEC.) = 4.61 DEPTH#VELOCITY = 2.56 FLOW PROCESS FROM NODE 10-30 TO NODE 10.00 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.610 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7295 SUBAREA AREA VACRES) = S.40 SUBAREA RUNOFF (CFS) = 10.28 TOTAL AREA(ACRES) = 13.40 TOTAL RUNOFF(CFS) = 27.21 TC (MIN) = 15.35 PI -OW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE = 1 --------•--------------------------------------------------------------------- ))'>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.35 RAINFALL INTENSITY (INCH./HOUR) = 2.61 TOTAL STREAM AREA (ACRES) = 13.40 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 27.21 FLOW PROCESS FROM NODE 10.20 TO NODE 10.00 IS CODE = 2 - ))))) RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((( ASSUMED INITIAL SUBAREA UNIFORM ----------- DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* E (LENGTH**„) / (ELEVATION CHANGE) ] **. 2 INITIAL SUBARENS FLOW -LEND i H = 1000.00 UPSTREAM ELEVATION = 1261.40 DOWNSTREAM ELEVATION = Q41.3ei ELEVATION DIFFERENCE = 20.10 TC = . 3 J,3* i t 100 0. 0L%1•I *3) / ( 2& 1 k) J **. 2 = Q.593 25.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.808 SOIL_ CLASSIFICATION IS "A" S I+NGLE-F•=AMILY<1/4 ACRE LOT) RUNOFF COEFFICIEi'•!-f = .7360 SUBAREA RUNOF'Y (C S) - 18.23 t+ TOTAL ARi_A (ACRES) = 8.60 TOTAL_ RUNOFF' (CFS) = 16.23 FLOW PROCESS FROM NODE 10.00 TO NODE Q.00 IS CODE = i >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<((<( > > >) > AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < (< ( ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2-ARE:�- _ _____•___----- .____.. TIME OF CONCENTRATION (MINUTES) = 13.59 RAINFALL I NTENS I TY (INCH./HOUR) = 2.81 TOTAL STREAM AREA (ACRES) = 6.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 18.23 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) --------•---------------------------------------------------------------------- 1 27.21 15. 35 2.610 2 18.23 13.59 2.808 RAINFALL. INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR S STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 44.16 42.32 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 44.16 TIME (MINUTES) = 15.355 TOTAL.. AREA (ACRES) = 22.20 •h•a; �••x••�•�i�a�••�•ai•�••3i•�•-x-�•�•�••��••�•�-•�••��•�••�•at••� �•#-�••�••k•-�i••�•�•�•�-•�•af•ie••��••�-#•�•#-�*�•�•k•�-#•�:•-jai•�•�#•x••�•�•�••�•�•�:•�••��r�••��•�••��•� FLOW PROCESS FROM NODE 10.00 TO NODE ISM IS CODE _ ?, '> > 1 > CUM CUTE PIPEFLOW TRAVELTIME THRU SUBAREA (< < ( ( )>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<(( DEPTH OF FLOW I N 30.0 INCH PIPE IS 24.6 INCHES PIPEFLOW 'VELOCI TY(FEET/SEC.) = 10.3 UPSTREAM NUDE ELEVATION = 12.41.30 DOWNSTREAM NUDE ELEVATION = 1235.20 FLOWLENGTH(FEET) = 500.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 44.16 TRAVEL TIME(MIN.) = .81 TC<MIN.> = 16.17 -�• ie• �•# •k• �• •fi• •u• # •��• -�• �• �i •�•-x• •� •�• �• �• di• •� •x-�• •�-� �• � �• ae• •►i- �••� �.:• # •��• � # •� •iF •li• �• � •►�• •�• •� �• •��• # # •lt •� �• �•-� •� �• � •��• •�-� •k- •� �-�• �• •� •�• �• �•;i• �• •�••k• # #�• FLOW PROCESS FROM NODE 20.10 TO NODE 13.00 IS CODE = 8 - ---------------------- > > > > > ADDITION OF SUBAREA TO MAINLINE PEAK FLOW (< < < < 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) - 2.530 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7257 SUBAREA AREA (ACRES) = 5.60 SUBAREA RUNOFF (CFS> = 10.28 TOTAL AREA (ACRES) _ 27.60 TOTAL RUNOFF (CFS) = 54.44 TCCMI.N) - 16.17 #•><•#•ic•i:••D:A•#-k••Y•k:•###•########-�i; it•ii•###: �•ic#9F#•k###ji•i•###########•######•�:•###########•6:•#•�••ii•#•Ei•# PLOW PROCESS FROM NODE 20.20 TO NODE 15.00 IS CODE = 8 _---_.______-_-_-•--- > > > > > ArDITIDN OF SUBAREA TO MAINLINE PEAK FLOW < < (( ( 25.00 YEAR RAINFALL INTENSITY (I NCH/ HOUR) 2.330 -_-__- SOIL CLASSIFICATION IS "A" SINGLE-FAMILY (1 / 4 ACRE LCT) RUNOFF COEFFICIENT = .7257 SUBAREA AREA(ACRES) = 4.80 SUBAREA RUNOFF(CFS) = 8.8i TOTAL AREA(ACRES) _ 32.60 TOTAL RUNOFF ( CFS) = 63.25 TO (MIN) = 16.17 ##ii•#.••k••k•le•�••)t•�:••k••IE•###i:••3C••3i••if•#iF•-1i•�•dr#ir##iE################�i•######•)E•###•ii•####•##•M•#�i•iE#1E-k•k•#�i••ii•## FLOW PROCESS FROM NODE 15.00 TO NODE 20.00 IS CODE = 3 ---------------- > > > > > COMPU T E PIPEFLOW TRAVELTIME THRU SUBAREA < (< < ( )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(< i.JEI='TF-i OF FLOW IN 39.0 INCH F'IF'E IS --27.1 INCHES ------___._______________•_= _ PIPEFLOW VELOCITY ( FEET/SF_C.) = 10. UPSTREAM NODE ELEVATION = 1235.20 DOWNSTREAM NODE ELEVATION = 1231.50 F LOWLE NGTH ( FEET) = 420.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA(CFS) = 63.25 TRAVEL TIME (MIN.) = .69 TC (MIN.) = 16.85 iE#####•ii•##•le•�i•#••ii•i4•###ir#ii•###3i•###•it###•14•##•k•####•!6•)f•#•k•#•!e•###•lf••iF••iF######ir####•)E•#�r•ii•ii•#•#•3F#ir•Di•#•#•it FLOW PROCESS FROM NODE 20.30 TO NODE 20.00 IS CODE = 8 ---------------------------------------------------------------------.-------- 0 Q !ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 25.00 YEAR RAINFALL INTENSITY (I NCH / HOUR) = 2.468 OIL CLASSIFICATION IS "A" SINGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7226 SUBAREA AREEA <ACRES) 3.70 SUBAREA RUNOFF(CFS) = 6.60 TOTAL AREA(ACRES) _ 36.30 TOTAL RUNOFF(CFS) = E9.85 TC (MIN) = 16.85 PLOW PROCESS FROM MODE 20.40 TO NODE 20.00 IS CODE = 8 > > > > > ADDITION OF SUBAREA TO MAINLINE PEAT; FLOW((((( '_________________ 25.00 YEAR RAINFALL INTENSITY (I NCH/HOU R) 2.466 SOIL CLASSIFICATION IS "Ar' SINGLE-FAMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7226 SUBAREA AREA(ACRES) = 5.20 SUBAREA RUNOFF(CFS) = 9.27 TOTAL AREA(ACRES) = 41.50 TOTAL RUNOFF(CFS) = 79.13 TC (MIN) = 16.85 ###�#####�:•#�#•x•###-x••ti•#•x••�•�•########�•x �:•�•�•####�:••t+•##�i•###�i•#####�•####•�•�########�#•gal•## FLOW PROCESS FROM NODE 20.00 TO NODE 30.00 IS CODE = 3 ---•------------------------------------------------------------------------- >)>>?COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(( DEPTH OF FLOW IN 42.0 INCH PIPE IS 29.8 8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.0 UF°STREA,A NODE ELEVATION = .1231.5L-) DOWNSTRLAM NODE ELEVATION22 - 1.60 1 %`G FLGWLENOTH ('r EET) = 1 i oo. 00 MANN I NGS N = .013 ESTIMATED THRU H) DIAMETER(INC-• 42.00 NUMBER OF PIPES = 1 PIPEFLOW TRU SUBAREA(CFS) _ 79.13 TRAVEL TIME(MIN.) = 1.69 TC(MIN.) = 18.54 --Pi_.t1i+ PROCESS -__-- FROM NODE30. 00 TO NODE 50. 0 15 CODE = 3 --------------------------------- ----------- s >)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<(< -_) > > > > USI;NG COMPUTER_ ESTIMATED PIPE SIZE (NON -PRESSURE FLOW) (((( ( DEPTH OF FLOW IN 39.0 INCH PIPE IS 26.9 INCHES =__-^------------- PIPEFLOW VE.LOCITY(FEET/SEC.) = 13.0 UPSTREAM NODE ELEVATION = 1221.60 DOWNSTREAM NODE ELEVATION = 1210.10 FLOWLENGTH (FEET) = 800.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 75.13 TRAVEL TIME (MIN.) = 1.03 TC (MIN.) = 19.57 FLOW PROCESS FROM NODE 50.00 TO NODE 50.00 IS CODE _ 1 ---------------------------------- )>)>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<<• CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENT RATION KINUTES) = 19.57 RAINFALL INTENSITY (INCH. /HOUR) = 2.26 TOTAL. STREAM AREA (ACRES) = 41.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 79.Q PLOW PROCESS FROM NODE 40.10 TO NODE 40.00 IS CGDE _ --------------------------------------------------- J l_ )>>)`.RATIONAL METHOD INITIAL -SUBAREA -ANALYSIS<<<<<---------------^-______._ ASSUMED INITIAL SUBAREA UNiFGRM DEVELOPMENT IS: SINGLE FAMILY (1./4 ACRE) TC == K E ( LENGTH -#3) / ( ELEVATION CHANCE) J **. INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1236.00 DOWNSTREAM ELEVATION = 1224.24 ELEVATION DIFFERENCE = 11.78 TE _ . 39 * E ( 1000. 00**3) / ( 1 1.76) ] **. � • 15.131 25.00 YEAR RAINFALL !NTENSIIY(INCH/HOUR) = 2.633 SOIL CLASSIFICATION IS "All SINGLE-FAMILY (1 /4 ACRE. LOT) RUNOFF COEFFICIENT = .7303 SUBAREA RUNOFF(CFS) = 10.0141 TOTAL AREA (ACRES) = 5.20 TOTAL RUNOFF (CFS) = 10.00 •� •��• •�• �- •pie• •��• •�• �e #• �• •� •�• � •x• �• -x• �: •� �• -�• •�• ••�•• �: �• �• � ai• •� •�• •� �• �: •� �• �• •�• *•.�• •�: �• 3i• # � aE• �• �• # •� •x• •� �• •� •�• # �• � �• •� �• � �i•� �- a�• �• �-� �• �• •�• •� � •�•� # FLOW PROCESS FROM NODE 40.10TONODE40.00 IS CODE -_-- - _- _ --------------------- % > > >) CC EMPUTE• ST•REETFLOW TRAVELTIME THRU SUBAREA < < (( ( UPSTREAM ELEVATION ^=---1224.24= DOWNSTREAM ELEVATION 1213.30 - 121,3.30==---__-_ STREET LENGTH(FEET) = 700.00 CURB HEIGTH(INCHES) = G. STREET HALFWIDTH (FEET) = 18.00 STREET CROSSFALL (DECIMAL) = . 0320 SPECIFIED NUMBER OF H=ILFSTRE.ETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN PLOW(CPS) = 10.00 STREET F LOWDEP T•H (FEE I-) = .49 HALFST•REET FLOODWIDTH(FEET) = ii .kti7 AVE,'-�•-(GE FLOW VELOCITY ? FEET/SEC.) _ __ 4. ii i �rtt.,DU T OF Dt_ ` E H &Vr LOC I. TY = 2. 03 STlR','EP_': T FLCrW RAVY_L•i IME (MIN) = 2.84 TC (MIN) = 17.97 23.00 YEAR RAINFALL IN'; ENSITY ( INCH 'HOUR) = 2.37S 631L CLASSIFICATION IS "A" SINGLE-FAMILY11/4 r=HCRE LOT) RUNOFF COEFFICIENT = .7176 Sii.JBf-REA AREA(ACRES) - 0.00 SUBAREA RUNOFF(CFS) 0.00 SUMMED AREA (ACRPA) _ Vi i_ o T nTn' w m or r o a i i m A, -J, END JF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .49 HALFSTREET FLOODWIDTH(FEET) = 1E.07 FLOW VELOC; I TY ( FEET /SEC.) = 4. 1 1 DEP T H*VELOC I TY• = 2.03 FLOW PROCESS FROM NODE 40.20 TO NODE 40.00 IS CODE = 8 --------------------- )>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 25.00 YEAR RAINFALL INTENSITY QNCH/HOUR) _ 2.375 SOIL CLASSIFICATION IS "01, SINGLE --F AMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7176 SUBAREA AREA (ACRES) = 4.00 SUBAREA RUNOFF (CFS) = 6.8E TOTAL AREA &ACRES) = %20 TOTAL RUNOFF (CFS) = 16.82 TC(MIN) = 17.97 FLOW PROCESS FROM NODE 40.00 TO NODE 40.00 IS CODE = 8 >)>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<CCC(----------------- ----- 23.00 YEAR RAINFALL_ INTENSITY ( INCH/HOUR) 2.375 :TOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7176 SUBAREA AREA (ACRES) = 2.50 SUBAREA RUNOFF(CFS) = 4.26 TOTAL AREA (ACRES) = 11.70 TOTAL RUNOFF (CFS) _ 21.08 TC(MIN) = 17.97 PLOW PROCESS PROM NODE 40.30 TO NODE 40.00 IS CODE = 8 _---------------------- ))) > > ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < (< ( < 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.375 SOIL CLASSIFICATION IS "A'' TINGLE -FAMILY (1 /4 ACHE LOT) RUNOFF COEFFICIENT = .7178 ;SUBAREA AREA(ACRES) = 7.30 SUBAREA RUNOFF(CFS) = 1.44 ..TOTAL AREA (ACRES) = 0.00 TOTAL RUNOFF (CFS) = 33.52 TC(MIN) = 17.97 ###•,r:#-#•#•ic#•it•dE•#•iEir##••i�•�i••!i•3E#•�: #•#••k•#••14•#•k#••i6#•#••k #•if•ai#••it•##�i•#•#•#•)i•#•#•#•#••ic•#•#•##•k•k#iF#-iF#•#••!#•#•if•#•li•#••�i•#•#•#•# •}e• FLOW PROCESS FROM NODE 40.00 0 TO NODE 30.00 IS CODE = E >)) > > COMPUTE PIPEFLOW TRAVEL T IME T HRU SUS{AREA (((( < >)) > > US I NG COMPUTER -ESTIMATED P I PES I ZE ( NON -PRESSURE FLOW) < ((( ( DEPTH OF FLOW IN 27.0 INCH F`IF`E IS -15.6 INCHES---- -- ---- - - - -- _ ---- ____-_ PIPEFLOW VELOCITY(FEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1213.30 DOWNSTREAM NODE ELEVATION 1210.10 FLOWLENGTH (FEET) = 200.00 MANNI•NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) _ 27.00 NUIM.BE R OF PIPES = ). PIPEFLOW THRt, SUBAREA(CFS) - 33.52 TRAVEL TIMEZIN.) = .31 TC(MIN.) - 18.28 •k•ii•-1r#�••1E•3i•;r•lc•#•#•li•yF-k •3i•#•-k••ii•if•�r�i �#•�•#•#�#•1F•k•ic�-#••k#•►�•!i•9i-•iE•�••!F� •ii-•!£•�i•#•#is•k••3i•�f•�i•#•k•ii•#•1E#••k-•�F•#ii•�•k••)i••Dr•��•it•iE•#•k-•#�•�•�:• FLOW PROCESS FROM NODE 50.10 TO NODE 50.00 IS CODE = 8 _------------------ )•>)>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<(< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.351 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .823E SUBAREA AREA(ACRES) = 1.40 SUBAREA RUNOFF(CFS) = 2.71 TOTAL AREA(ACRES) _ 20.40 TOTAL_ RUNOFF(CFS) = 36.22 TC(MIN) = 18.28 •3F # ii --K• 9f• •iE di• •ir ii• •ii• •li• •li• 9r �• •ii• �i• # �• �E• �i• # •3f• � •li• 3E •�• •3i• •ir •li• ie• •iE �i• 3F dr fie• •iF •Yc -�• •le• �E• •#• �i• •ir �F i� •1E •�E• �• •#• #• •!E -R- •#• •;e• jE •li •1E #b � di -•i(• •k -DF #:• •3i -•k• •3i- #:• •)i• •k• •# •li•3E• jF• 9f• �i• FLOW PROCESS FROM NODE 50.20 TO NODE 50.00 IS CODE = 8 ----_------------------------------------------------------------------------- )>)>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<( 25.00 YEAR RAINFALL INTENSITY ( INCH/ HOUR) 2.351 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8232 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 5.42 TOTAL AREA(ACRES) _ 23.20 TOTAL_ RUNOFF(CFS) = 41.64 TC(MIN) = 18.28 •ir dF �i• •3i•�i• •k•-li•iF •1i• •�} •k 9i• •k •�dF •� # # •ii• •ii• •iE aF• �i• •3f-�E• •!i• •1i• •x-•iF di• •!i• �E •k• •M• •)6 if• 3t• ii-•lE• •k• •k• •lf• •3t iF fit• #• •Ii-�f-•)i• iF9E •3E• # •k •ih-x• �?• •Yf• ii• •k• iE• �f• •k # 9c• •)f• •3i• •ii• -�E• i4• •Di• •li• �e•�F •3i• FLOW PROCESS FROM NODE 50.00 TO NODE 50.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<(( > >) > > ANT? COMPUTE VARIOUS CONFLUENCED STREAM VALUES ((< ( ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM E ARE: TIME OF CONCENTRATION(MINUTES) = 18.28 RAINFALL INTENSITY (INCH./HOUR) _ 2.35 TOTAL STREAM AREA (ACRES) = 23.20 TOTAL STREAM M RUNOFF (CFS) AT CONFLUENCE _ 41.64 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ----------------------------------------------------------------------------- 41.64 16.28 2.351 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR E STREAMS. VARIOUS CONFL._UENCED RUNOFF VALUES ARE AS FOLLOWS: 11'x. 10 115.55 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 119.10 TIME(MINUTES) = 19.570 TOTAL AREA(ACRES) = 64.70 •li- •ie- •ii• i`i• •1i• •k •k• •k• �• 3t a�• •k• -k 9E• �i• •�• -k• iF �i• •k• •k• �E• fie• •ai- •li--)i• •k• �i• •1e• •iF ti4• je• •3� #• •k �i• •k -ic •�• •k •�i- •�i• �F• dE• •lei• � �: •le •1i• �f• of •k• •DE• •M• •k •�i• � �i• •k ii• •iF •�i• •Dr �i• -1� •k• -iF •k• •li• •iE iF •#:- •ii• •k :e• dE• FLOW PROCESS FROM NODE 50.00 TO NODE 55.00 IS CODE = 3 -------------•-------- )>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )>>>>USING COMPUTER -ESTIMATED PIPESILE (NON -PRESSURE FLOW)((((< DEPTH OF FLOW IN 51.0 INCH PIPE IS 41.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.6 UPSTREAM NODE ELEVATION = 1210.10 DOWNSTREAM NODE ELEVATION -• 1208.00 FLOWLENG F'H ( FEE T) = 400.00 MHN{N I NGS ESTIMATED PIPS: DIAMETER(INCH) - 51.00 PIPEFLOW THRU SUBAREA (CFE;) = i i9. 10 TRAVEL TIME (MIN.) = .70 TC(MIN.) N = .013 NUMBER OF PIPES = = 20. 27 FLOW PROCESS FROM NODE 55.10 TO NODE 55.00 IS CODE = 8 ------------------- >•>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<((< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.209 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = ,7077 SUBAREA AREA(ACRES) = 4.10 SUBAREA RUNOFF(CFS) = 6.41 TOTAL AREA(ACRES) = 68.80 TOTAL RUNOFF (CFS) = 12S.51 TC(MIN) = 20.27 FLOW PROCESS FROM NODE 55.20 TO NODE 55.00 IS CODE = 8 ----------------------------------------------------------------------------- >>0 ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.209 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7077 SUBAREA AREA(ACRES) = 1.30 SUBAREA RUNOFF(CFS) = 2.03 TOTAL AREA(ACRES) = 70.10 TOTAL RUNOFF(CFS) = 127.54 TC(MIN) = 20.27 FLOW PROCESS FROM NUDE 5S.30 TO NODE 55.00 IS CODE _ $ ---------.-. _.--- ------ D>)>ADDITIDN OF SUBAREA TO MAINLINE PEAK FLOW<<<<( 25.00 YEAR RAINFALL !NTENSI T Y ( INCH/HOUR) = 2.209 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8215 SUBAREA AREA(ACRES) _ .30 SUBAREA RUNOFF(CFS) = .54 TOTAL AREA(ACRES) = 70.40 TOTAL RUNOFF(CFS) = 128.09 TC(MIN) = 20.27 FLOW PROCESS FROM NODE 55.00 TO NODE 56.00 IS CODE _ ))>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(((< )))))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(((<( DEPTH OF FLOW IN 48.0 INCH PIPE IS 36.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.6 UPSTREAM NODE ELEVATION = 1208.00 DOWNSTREAM NODE ELEVATION = 1205.00 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETEK(INCH) = 46.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 128.09 TRAVEL TIME(MIN.) = .40 TC(MIN.) = 20.66 �E•-)r•k•###•3i•#•�i••k•#•)F•##•)E••k#•�##-k••le••lf••3�•!i-#•!i•#########•Y••k#ir######iF######•k •k•#-1i•##-1?######•�•k####: •Ii•iF•iN•k• FLOW PROCESS FROM NODE 56..00 TO NODE .56.00 IS,CODE 1 - _-------- )>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE. TIME OF CONCENTRATION(MINUTES) = 20.66 RAINFALL INTENSITY (INCH./HOUR) 2.16 TOTAL STREAM AREA (ACRES) = 70.40 TOTAL STREAK; RUNOFF (CFS) AT CONFLUENCE = 12&09 FLOW PROCESS FROM NODE 56.10 TO NODE 56.10 IS CODE = 2 ----------------------------------------------------------------------------- )>)>>iRATIOVAL METHOD INITIAL SUBAREA ANALYSIS<<<( ASSUMED INITIAL SUBAREA UNIFORM! DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)1**.2 INITIAL SUBAREA FLDWTLENGTH = 600.00 UPSTREAM ELEVATION = 1213.00 DOWNSTREAM ELEVATION = 1206.00 ELEVATION DIFFERENCE = 7.00 TC = . 393* C ( 600. 00**3) / ( 7. 00) 1 **. 2 = 12.354 25.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.973 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7442 SUBAREA RUNDFF(CFS) = 4.87 TOTAL AREA(ACRES) = 2.20 TOTAL RUNOFF(CFS) = 4.87 FLOW PROCESS FROM NODE 56.10 TO NODE ------------------------------------------------------------------------------ 56.20 IS CODE = 3 >•>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< >)>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 16.000 ---------�------__-_-- DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.7 UPSTREAM NODE ELEVATION = 1206.00 DOWNSTREAM NODE ELEVATION = 1205.50 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.O0 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 4.87 TRAVEL TIME (MIN.) _ .15 TC (MIN.) = 12.50 -i�•**•;r*•3f•****iE•!(•�f•#*•if•***�***•3f•**•x-*•�e•***iE***•iE•*********•iE•****•if•*iE•****�E**•lE••)f-•i�**•3F****•k***# FLOW PROCESS FROM NODE 56.20 TO NODE 56.20 IS CODE = 6 ---------------------------------------------------------------------------- > > > > > ADDITION OF SUBAREA TO MAINLINE PEAL; FLOW((((( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.953 SOIL CLASSIFICATION IS "A" S I NGLE-FAMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7435 SUBAREA AREA(ACRES) _ 1.40 SUBAREA RUNOFF(CFS) = 3.07 TOTAL AREA(ACRES) = 3.60 TOTAL RUNOFF(CFS) = 7.94 i TC(MIN) = 12.50 FLOW PROCESS FROM NODE 56.20 TO NODE 56.00 IS CODE = 3 ----------------------------------------------------------------------------- )>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<< >>)))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 21.0 INCH PIPE IS 15.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 4.2 UPSTREAM NODE ELEVATION = 1205.50 DOWNSTREAM NODE ELEVATION = 1205.00 FLOWLENGTH ( FEET) = 150.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF F'IF'ES = ). PIPEFLOW THRU SUBAREA(CFS) = 7.94 TRAVEL TIME (MIN.) == .60 TC (MIN.) = 18.10 � -b• •3i• dE •!6 •it• 9i• it i•)E •1F is ii• •k• � if• -le• •if--lF• �r �i• fit• �i• # •k •lE• •M• �E-•k• •k• •k •ii• � •k �E jF• •iF• •�E •iE- •3F• •�F •it• •k •k •3F 9F •i�• •34• •R• •li•iF jF •k it •Y:-�E !r 3E iE• ji• •iE• iF •ii• iF •7F• # •iF ir •iF �i• •le• •ii• fie• •1r •3r FLOW PROCESS FROM NODE 56.30 TO NODE 56.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.871 SOIL CLASSIFICATION IS ''A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7405 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = 1.06 TOTAL AREA(ACRES) = 4.10 TOTAL RUNOFF(CFS) = 9.00 TC (MIN) = 13.10 FLOW PROCESS FROM NODE 56.00 TO NODE 56.00 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) = 13.10 RAINFALL INTENSITY (INCH./HOUR) = 2.87 TOTAL STREAM AREA (ACRES) = 4,10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 9.00 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------------------------ 1 128.09 20.66 2.184 2 9. 00 13.10 2.871 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS; 134.94 90.19 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 134.94 TIME (MINUTES) = 20.662 TOTAL AREA(ACRES) = 74.50 �6 9E• •1E• •k• •k•# �i• # •)e• iF •iE• •k• ii• •lE••!i• •lE••3t• •k• •k •li• �3i-�F• �E•# # •JF• # �E• �t-•k •li••lF •)i• df•�E• iE• dE ii• •lE• # �• i6 iE •lf• dE• # 9E•� •�• •x-iE•-lE• •!F •x• �E •lE••k• •1E �t• •iE iE iF 9t• •�• 9E-iF•-1i• * •)E •x• �• •x• �F•iF-)F •JF• FLOW PROCESS FROM NODE 56.00 TO NODE 57.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREM ((< )>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW[)<(((( DEPTH OFF FLOW IN 46.0 INCH PIPE IS 35.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.7 UPSTREAM NODE ELEVATION = 1205.00 DOWNSTREAM NODE ELEVATION = 1201.00 FLOWLENGTH(FEET) = 340.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 7. PIPEFLOW THRU SUBAREA(CFS) = 134.94 TRAVEL TIME(MIN.) = .42 TC(MIN.) = 21.08 ####�F###•it••1E•#iF•9t•9E###••kii•iF#•3E�•##•)E##•)f•�f•#•k#####•�•#•k•###•k•##•ii••3r•If•##•�#ir#ic####•3ric#•ii•d4•#####•►: if••DF### FLOW PROCESS FROM NODE 57.00 TO NODE 57.00 IS CODE = 1 ---------------------- )>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(l<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE;------^-___________.�_ TIME OF CONCENTRATION(MINUTES) = 21.08 RAINFALL INTENSITY (INCH./HOUR) = 2.16 TOTAL STREAM AREA (ACRES) = 74.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.54.34 •R•###•;E###•if•#•lf••iF•k••k•###9E######•A-1F##�i••iF•li••�••3E##•�•##�Q•i4•#•if•###�f•#•#####•ii#•lEii•######•#•##•iFie#-ie•##•iF###�E• FLOW PROCESS FROM NODE 57.10 TO NODE 57.10 IS CODE = 2 ------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<(((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)3**.2 INITIAL SUBAREA PLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1204.50 DOWNSTREAM ELEVATION = 1201.00 ELEVATION DIFFERENCE = 3.50 TC = . 393* C ( 400. 00**3) / ( 3.50) 3 **. 2 = 11.127 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.16E SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7507 SUBAREA RUNOFF(CFS) = 5.23 TOTAL AREA(ACRES) = 2.20 TOTAL RUNOFF(CFS) = 5.23 FLOW PROCESS FROM NODE 57.10 TO NODE 57.00 IS CODE = 3 >>)))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<( >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(< DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 4.8 UPS"T"REAM NODE ELEVATION = 1201.00 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 170.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW T'HRU SUBAREA(CFS) = 5.23 TRAVEL TIME(MIN.) = TC(MIN.) ###�!•lr•###**####at•*#*##*#•li•*####*#�f•*#*#*####if•�E####*#*#�E•##•ir##ii•#9i-•1F•#*####�•*•�•###dt*-k* FLOW PROCESS FROM NODE 57.00 TO NODE 57.00 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) = 11.72 RAINFALL INTENSITY (INCH./HOUR) = 3.07 TOTAL STREAM AREA (ACRES) = 2.20 TOTAL STREAM RUNOFF(CFS> AT CONFLUENCE = 5.23 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) -------------------------------------------------------------------------- 1 134.94 21.08 2.158 2 5.23 11.72 3.069 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR E STREAMS. VARIOUS CUNFLUENCED RUNOFF ',VALUES ARE AS FOLLOWS 138.61 80.28 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS. RUNOFF(CFS) = 138.61 TIME (MINUTES) = 21.077 TOTAL AREA (ACRES) = 76.70 �i-•rc•k�i•-k•�*��••ii••)i••i�-•k•.�-�••x••lE••�i••��•�E•�•k3:•x•�E•��E••lr•k••�iF�••li•�•��••x•�F�i••k•�4•�•-1F•i+•�i•iE•�••k•3E••Ie••iF�E••►�•�•k-k�F�:••iE••k•x•�E••1i••�i•#�E�i••�E•ji•�ii•�•��E••;i•�F• FLOW PROCESS FROM NODE 57.00 TO NODE 607.00 IS CODE = 3 ----------------------------------------------------------------------------•-- >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<(( >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 51,0 INCH PIPE IS 41.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.2 UPSTREAM NODE ELEVATION = 1200.00 DOWNSTREAM NODE ELEVATION = 1198.00 FLOWLENGTH(FEET) = 280.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) _ IP1111 , I I w s 66 TRAVEL TIME(MIN.) _ .42 TC(MIN. ) _ 1111101 Zh67 -- -------------------------------____=-• END OF RATIONAL METHOD ANALYSIS A - ------------- RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM EASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (C) Copyright 198; Advanced Engineering Software CAES7 Especially prepared for: HALL & FOREMAN, INC. **********DESCRIPTION OF * LINE D WITH E. VILLAGE HYDROLOGY REVISED * 0 100 YR * V. N. /J. M. , DISK 1#1-31, FILE ' C' , JN 3810-020, 11/9/1988 ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ----------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED Advanced Engineering Software [AES] SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 409.14 TO NODE 409.14 IS CODE = 7 ---------------------------------------------------------------------------- >)>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<((( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN> = 15.68 RAIN INTENSITY(INCH/HOUR) = 3.29 TOTAL AREA(ACRES) = 53.51 TOTAL RUNOFF(CFS) = 134.76 FLOW PROCESS FROM NODE 420.00 TO NODE 419.30 IS CODE = 3 ---------------------------------------------------------------------------- )>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREAc<<C( )>))>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<<< ----------- DEPTH OF FLOW IN 33.0 INCH PIPE IS 23.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 29.7 UPSTREAM NODE ELEVATION = 1232.00 DOWNSTREAM NODE ELEVATION = 1225.50 FLOWLENGTH(FEET) = 70.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 33.00 PIPEFLOW THRU SUBAREA(CFS) = 134.76 TRAVEL TIME (MIN. ) = .04 TC (MIN. ) N = .013 NUMBER OF PIPES = 15. 72 1 FLOW PROCESS FROM NODE 419.30 TO NODE 419.30 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( - - CONFLUENCE VALUES VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 15.72 RAINFALL INTENSITY (INCH./HOUR) = 3.28 TOTAL STREAM AREA (ACRES) = 53.51 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 134.76 FLOW PROCESS FROM NODE 419.10 TO NODE 419.10 IS CODE = 2 ---------------------------------------------------------------------------- >))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<(<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)**.2 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1258.00 DOWNSTREAM ELEVATION = 1229.10 ELEVATION DIFFERENCE = 28.90 TC = . 393* C ( 1000. 00**3) / ( 28.90) 7 **. 2 = 12.641 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.742 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7660 SUBAREA RUNOFF(CFS) = 15.77 TOTAL AREA(ACRES) = 5.50 TOTAL RUNOFF(CFS) = 15.77 FLOW PROCESS FROM NODE 419.10 TO NODE 419.20 IS CODE = 3 >))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(( DEPTH OF OF FLOW IN 27.0 INCH PIPE IS 17.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.8 UPSTREAM NODE ELEVATION = 1229.10 DOWNSTREAM NODE ELEVATION = 1227.50 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 15.77 TRAVEL TIME(MIN.) = .95 TC(MIN.) = 13.59 FLOW PROCESS FROM NODE 417.10 TO NODE 419.20 IS CODE = 8 ---------------------------------------------------------------------------- >> M ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<((< --_ _- ----------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.583 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7886 SUBAREA AREA (ACRES) = 3.40 SUBAREA RUNOFF(CFS) = 9.61 TOTAL AREA(ACRES) = 8.30 TOTAL RUNOFF(CFS) = 25.37 TC(MIN) = 13.59 �f-•lf• •ic- •1E 9E•�F •li• 9E• iE •lf• �k iE •k •IE• 9E• •lf•-1F •x- �E •IF•iE• iF• •lE -x• dE• 9E dE �F •tE• dE• •!F •iE• 9E• 9F •)E• dE •IE• •�• fit• �lf• �E• -lE• •1f• •lE �3E •IE �lE •lE •x� iE• •lF dE �lE• iE9F •lE -1t� •iF •le-�f• •� •li• •)F 9E• •lf• iF• dFiE •lE iF •iF•-1E��F •�• iF •lE FLOW PROCESS FROM NODE 419.20 TO NODE 419.30 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<<< ------------------------- DEPTH OF FLOW IN 21.0 INCH PIPE IS 14.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.> = 14.3 UPSTREAM NODE ELEVATION = 1227.50 DOWNSTREAM NODE ELEVATION = 1225.50 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 25.37 TRAVEL TIME(MIN. ) _ .06 TC(MIN. ) = 13.65 FLOW PROCESS FROM NODE 419.30 TO NODE 419.30 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) 13.65 RAINFALL INTENSITY (INCH./HOUR) = 3.57 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 25.37 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ---------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 134.76 15.72 3.284 2 25.37 13.65 3.574 RAINFALL INTENSITY AND TIM£ OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 158.07 142.40 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 158.07 TIME(MINUTES) = 15.715 TOTAL AREA(ACRES) = 62.41 FLOW PROCESS FROM NODE 419.30 TO NODE 430.00 IS CODE = 3 >>>))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((< )>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<((( ---------- DEPTH OF FLOW IN 54.0 INCH PIPE IS 39.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1225.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 850.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 158.07 TRAVEL TIME(MIN. ) = 1.11 TC(MIN. ) = 16.82 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< - - ------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.82 RAINFALL INTENSITY (INCH./HOUR) = 3.15 TOTAL STREAM AREA (ACRES) = 62.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 156.07 FLOW PROCESS FROM NODE 428.00 TO NODE 4c8.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<(((( ASSUMED INITIAL SUBAREA UNIFORM - - - DEVELOPMENT IS: CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 600.00 UPSTREAM ELEVATION = 1233.00 DOWNSTREAM ELEVATION = 1220.413 ELEVATION DIFFERENCE = 12.60 TC = . 359* C ( 800. 00**3) / ( 12.60) ] **. 2 = 11.943 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.872 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7931 SUBAREA RUNOFF(CFS) = 6.14 TOTAL AREA(ACRES) = 2.00 TOTAL RUNOFF(CFS) = 6.14 FLOW PROCESS FROM NODE 428.10 TO NODE - -------------------------------------------------------------------- 430.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<( )>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(( ESTIMATED PIPE DIAMETER(INCH) INCREASED TO -------------------------------- 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 6.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1220.40 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 6.14 TRAVEL TIME (MIN. ) = .08 TC (MIN. ) = 12.02 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<(< - ----------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.02 RAINFALL INTENSITY (INCH./HOUR) = 3.86 TOTAL STREAM AREA (ACRES) = 2.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.14 FLOW PROCESS FROM NODE 429.00 TO NODE 429.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<(( -- --------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE> TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 150.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 1218.60 ELEVATION DIFFERENCE = 13.40 TC = .393*[( 150. 00**3) / ( 1 3.40) 7 **. 2 = 4.723 COMPUTED TIME OF CONCENTRATION INCREASED TO 5 MIN. 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 6.589 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8018 SUBAREA RUNOFF(CFS) = 13.61 TOTAL AREA(ACRES) = 2.60 TOTAL RUNOFF(CFS) = 13.61 FLOW PROCESS FROM NODE 429.10 TO NODE 430.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<<( >>>))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(( ---------------------------------- DEPTH OF FLOW IN 27.0 INCH PIPE IS 18.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 4.6 UPSTREAM NODE ELEVATION = 1216.60 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 20Q).00 MANNINGS N = .013 ESTIMATED RIPE DIAMETER(INCH) _ 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 13.61 TRAVEL TIME (MIN. ) _ .72 TC (MIN. ) = 5.72 **************************************************************************** FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 6.024 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8396 SUBAREA AREA(ACRES) _ .40 SUBAREA RUNOFF(CFS) = 2.02 TOTAL AREA(ACRES) = 3.00 TOTAL RUNOFF(CFS) = 15.63 TC (MIN) = 5.72 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = i >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< )>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<((< ----------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 5.72 RAINFALL INTENSITY (INCH./HOUR) = 6.02 TOTAL STREAM AREA (ACRES) = 3.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15.63 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------------------------------------ 1 156.07 16. a2 :3.152 6.14 12.02 3.857 3 15.63 L5.72 6.024 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 171. 27 129. 09 72.28 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 171.27 TIME(MINUTES) = 16.825 TOTAL AREA(ACRES) = 67.41 FLOW PROCESS FROM NODE 430.00 TO NODE 397.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(((< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(<(( - - ------------------- DEPTH OF FLOW IN 54.0 INCH PIPE IS 44.2 INCHES PIPEFLOW VELOCITY(FEET/SEG.) = 12.3 UPSTREAM NODE ELEVATION = 1218.00 DOWNSTREAM NODE ELEVATION = 1216.00 FLOWLENGTH(FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = I PIPEFLOW THRU SUBAREA(CFS> = 171.27 TRAVEL TIME(MIN.) _ .34 TC(MIN.) = 17.16 FLOW PROCESS FROM NODE 397.00 TO NODE 397.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION<MINUTES) = 17.16 RAINFALL INTENSITY (INCH./HOUR) = 3.11 TOTAL STREAM AREA (ACRES) = 67.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 171.27 FLOW PROCESS FROM NODE 397.+0 TO NODE 397.00 IS CODE = 7 >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<< -- _ - -------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 12.32 RAIN INTENSITY(INCH/HOUR) = 3.80 TOTAL AREA(ACRES) = 28.87 TOTAL RUNOFF(CFS) = 71.22 FLOW PROCESS FROM NODE 397.00 TO NODE 397.00 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) = 12.32 RAINFALL INTENSITY (INCH./HOUR) = 3.80 TOTAL STREAM AREA (ACRES) = 28.87 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 71.22 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ----------------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 171.27 17.16 3.115 71.22 12.32 3. 801 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 280.64 1 94. 13 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 229.64 TIME(MINUTES) = 17.164 TOTAL AREA(ACRES) = 96.58 FLOW PROCESS FROM NODE 397.00 TO NODE 604.50 IS CODE = 3 >)>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((( DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.9 UPSTREAM NODE ELEVATION = 1216.00 DOWNSTREAM NODE ELEVATION = 1209.00 FLOWLENGTH(FEET) = 780.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 229.64 TRAVEL TIME(MIN.) _ .93 TC(MIN.) = 18.10 FLOW PROCESS FROM NODE 605.00 TO NODE 604.50 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK. FLOW(<((< - ------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.018 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7458 SUBAREA AREA(ACRES) = 14.60 SUBAREA RUNOFF(CFS) = 32.86 TOTAL AREA(ACRES) = 110.88 TOTAL RUNOFF(CFS) = 262.49 TC(MIN) = 18.10 iE• •k iF •k •iF •Yr �F• �lF � � � aE * �E •� •1F •li•-)F •3f• �EiE i�• •lf• 9E•aF •ii• •3E•dE •1E •x -9E �E �EiE iE�f• •lE•aF jF•iE• dE �E iE 9F iF�iE 9F •K• if• �E• �1E-k �F•IE-•1F•)E•dEjFiF aE �E•* 9E •lf• dE � �iF 9E �F •ii••iF dF iE• •x•9E iE FLOW PROCESS FROM NODE 604.50 TO NODE 604.50 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 18.10 RAINFALL INTENSITY (INCH./HOUR) = 3.02 TOTAL STREAM AREA (ACRES) = 110.88 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 262.49 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 562.49 18.10 3.018 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 262.49 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 562.49 TIME(MINUTES) = 16.096 TOTAL AREA(ACRES) = 110.88 END OF RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1383 HYDROLOGY MANUAL (C) Copyright 1582 Advanced Engineering Software CAES7 Especially prepared for: HALL & FOREMAN, INC. **********DESCRIPTION OF * LINE D WITH E. VILLAGE HYDROLOGY REVISED * O SO YR * V. N. /J. M. , DISK ' #1-3' . FILE ' C' , 11/9/1988 --------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 --YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .580 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE _ .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED Advanced Engineering Software CAES3 SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 409.14 TO NODE 409.14 IS CODE = 7 ---------------------------------------------------------------------------- >)>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<< --------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.82 RAIN INTENSITY(INCH/HOUR) = 2.56 TOTAL AREA(ACRES) = 53.51 TOTAL RUNOFF(CFS) = 100.54 FLOW PROCESS FROM NODE 420.00 TO NODE 419.30 IS CODE = 3 ---------------------------------------------------------------------------- >}>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<(<c >>>>>USING COMPUTER—ESTIMATED PIPESIZE (NON—PRESSURE FLOW)<((<< DEPTH OF FLOW IN 30.0 INCH PIPE IS 20.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 27.7 UPSTREAM NODE ELEVATION = 1232.00 DOWNSTREAM NODE ELEVATION = 1225.50 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .015 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 100.54 TRAVEL TIME (MIN. ) = .04 TC (MIN. ) = 15.86 * •!F •?F•)i••iE •X• •;E it * #• �i• �i•if• 1E•�E •iE* 9E• •)6 •� •Ii• *9i•* •)E• *•iE• iFdE-�E 9E � •M• •li-dF iF ** dE• * * •if --1F iF-kif• •)f• dF lE• if• •� •k 1ilF � •)E• �E if•)f• iF •iF-1c 9E• •lE-x• dE 9E iF * •IF �E •1t• ii••!f• •�E• •l� FLOW PROCESS FROM NODE 419.30 TO NODE 419.30 IS CODE = 1 ---------------------------------------------------------------------------- >>))`.DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< ------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.86 RAINFALL INTENSITY (INCH./HOUR) = 2.56 TOTAL STREAM AREA (ACRES) = 53.51 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 100.54 lh�F�i••�••kiE•iE9i•****dF*9EdE•*•li•�E-**�-��E••x••lf••1F***�t•9E••)E•�•d4•*****�****•�•9F•x••x••x•iE•**iFiE*************�***aE•x••iE•�• FLOW PROCESS FROM NODE 419.10 TO NODE 419.10 IS CODE = 2 ----------------------------------------------------------------------------- >>)>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<((( ------------------------ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1258.00 DOWNSTREAM ELEVATION = 1229.10 ELEVATION DIFFERENCE = 28.90 TC = . 393* C ( 1000. 00**3) / ( 28.90) 3 **. 2 = 12.641 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.933 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7428 SUBAREA RUNOFF(CFS) = 11.98 TOTAL AREA(ACRES) = 5.50 TOTAL RUNOFF(CFS) = 11.98 *•lt•9E**ai•******•�•****•)E•**********dF*•if••le••!E•�•*iF***•if**�*•Jf•***•k�F••lE•******AF•�***iF�E•lt****•;E*iF*•IE•dt-�E• FLOW PROCESS FROM NODE 419.10 TO NODE 419.20 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )>)))USING COMPUTER -ESTIMATED PIPESIZE (NDN -PRESSURE FLOW)(<(<( DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.4 UPSTREAM NODE ELEVATION = 1229.10 DOWNSTREAM NODE ELEVATION = 1227.50 FLOWLENGTH(FEET) = 330.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 11.98 TRAVEL TIME (MIN. ) = 1.02 TC (MIN. ) = 13.66 FLOW PROCESS FROM NODE 417.10 TO NODE 419.20 IS CODE = 8 - -------------- )>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<(<< -------------------------------- 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.800 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7714 SUBAREA AREA(ACRES) = 3.40 SUBAREA RUNOFF(CFS) = 7.34 TOTAL AREA(ACRES) = 8.90 TOTAL RUNOFF(CFS) = 19.32 TC (MIN) = 13.66 FLOW PROCESS FROM NODE 419.20 TO NODE 419.30 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<(< ----------------------------- DEPTH OF FLOW IN 16.0 INCH PIPE IS 13.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.5 UPSTREAM NODE ELEVATION = 1227.50 DOWNSTREAM NODE ELEVATION = 1225.50 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 19.32 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 13.72 FLOW PROCESS FROM NODE 419.30 TO NODE 419.30 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) = 13.72 RAINFALL INTENSITY (INCH./HOUR) = 2.79 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 19.32 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ---------------------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 100.54 15.86 2.559 2 19.32 13.72 2.792 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 118.25 106.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 118.25 TIME(MINUTES) = 15.862 TOTAL AREA(ACRES) = 62.41 FLOW PROCESS FROM NODE 419.30 TO NODE 430.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((< )>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<((< DEPTH OF FLOW IN 48.0 INCH PIPE IS 35.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.8 UPSTREAM NODE ELEVATION = 1225.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 850.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 118.25 TRAVEL TIME(MIN. ) = 1.20 TC(MIN. ) = 17.06 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 1 >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.06 RAINFALL INTENSITY (INCH./HOUR) = 2.45 TOTAL STREAM AREA (ACRES) = 62.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 118.25 FLOW PROCESS FROM NODE 428.00 TO NODE 428.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS(((<< ASSUMED INITIAL INITIAL SUBAREA UNIFORM DEVELOPMENT IS: CONDOMINIUM TC = K*C(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 800.00 UPSTREAM ELEVATION = 1233.00 DOWNSTREAM ELEVATION = 1220.40 ELEVATION DIFFERENCE = 12.60 TC = . 359* C ( 800. 00**3) / ( 12.60) ] **. 2 = 11.943 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.034 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7774 SUBAREA RUNOFF(CFS) = 4.72 TOTAL AREA(ACRES) = 2.00 TOTAL RUNOFF(CFS) = 4.72 FLOW PROCESS FROM NODE 428.10 TO NODE 430.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<( >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<<< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 5.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.0 UPSTREAM NODE ELEVATION = 1220.40 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 4.72 TRAVEL TIME(MIN. ) = .08 TC(MIN. ) = 12.0.3 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = i ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.03 RAINFALL INTENSITY (INCH./HOUR) = 3.02 TOTAL STREAM AREA (ACRES) = 2.00 TOTAL STREAM RUNOFF(CFS> AT CONFLUENCE = 4.72 FLOW PROCESS FROM NODE 429.00 TO NODE 429.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>)>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<((<( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 150.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 1218.60 ELEVATION DIFFERENCE = 13.40 TC = .393*[( 150. 00**3) / ( 13.40) 1**. 2 = 4.723 COMPUTED TIME OF CONCENTRATION INCREASED TO 5 MIN. 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.116 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT.= .7885 SUBAREA RUNOFF(CFS) = 10.43 TOTAL AREA(ACRES) = 2.60 TOTAL RUNOFF(CFS) = 10.49 FLOW PROCESS FROM NODE 429.10 TO NODE 430.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<(( >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(((< - -------------- DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 4.3 UPSTREAM NODE ELEVATION = 1218.60 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 200.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 10.49 TRAVEL TIME (MIN. ) = .77 TC (MIN. ) = 5.77 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.695 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8366 SUBAREA AREA(ACRES) _ .40 SUBAREA RUNOFF(CFS) = 1.57 TOTAL AREA(ACRES) = 3.00 TOTAL RUNOFF(CFS) = 12.06 TC (MIN) = 5.77 FLOW PROCESS FROM NODE 430.00 TO NODE 430.00 IS CODE = f >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((<( )>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( ---------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 5.77 RAINFALL INTENSITY (INCH./HOUR) = 4.70 TOTAL STREAM AREA (ACRES) = 3.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.06 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1 118.25 17.06 - ---- 2.450 2 4.72 12.03 3.022 3 12.06 5.77 4.695 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 128.37 95.85 54.33 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 128.37 TIME(MINUTES) = 17.058 TOTAL AREA(ACRES) = 67.41 dEdEiF���E�9F��E��ita6di-dE�*dE�E��1FiF�dr9F��iE��-1F�*i�iE�*��E�dE�*�F�FiE*�4-aE��e3F�F9F*iE�EiFiF*iEiEiE�)tiE�lFdEiF�9E9F� FLOW PROCESS FROM NODE 430.00 TO NODE 397.00 IS CODE = 3 >>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<(( ))>))USING COMPUTER -ESTIMATED PIPESIZE (NDN -PRESSURE FLOW)(<<(( - --------------------- DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.7 UPSTREAM NODE ELEVATION = 1218.00 DOWNSTREAM NODE ELEVATION = 1216.00 FLOWLENGTH(FEE_T) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 51.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 128.37 TRAVEL TIME(MIN.) _ .36 TC(MIN.) = 17.41 FLOW PROCESS FROM NODE 357.00 TO NODE 357.00 IS CODE = 1 ---------------------------------------------------------------------------- )>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 17.41 RAINFALL INTENSITY (INCH./HOUR) = 2.42 TOTAL STREAM AREA (ACRES) = 67.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 128.37 FLOW PROCESS FROM NODE 357.00 TO NODE 357.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<< - - USER-SPECIFIED VALUES VALUES ARE AS FOLLOWS: TC(MIN) = 12.48 RAIN INTENSITY(INCH/HOUR) = 2.96 TOTAL AREA(ACRES) = 28.87 TOTAL RUNOFF(CFS) = 53.75 FLOW PROCESS FROM NODE 397.00 TO NODE 397.00 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) = 12.48 RAINFALL INTENSITY (INCH. /HOUR) = 2.96 TOTAL STREAM AREA (ACRES) = 28.87 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 53.79 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------.---------------------------------- 1 128.37 17.41 2.420 2 53.79 12.48 2.955 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 172.42 145.79 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 172.42 TIME(MINUTES) = 17.415 TOTAL AREA(ACRES) = 96.28 FLOW PROCESS FROM NODE 397.00 TO NODE 604.50 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((< >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((< DEPTH OF FLOW IN 54.14) INCH PIPE IS 42.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 13.0 UPSTREAM NODE ELEVATION = 1216.00 DOWNSTREAM NODE ELEVATION = 1209.00 FLOWLENGTH(FEET) = 780.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 172.42 TRAVEL TIME (MIN. ) = 1.00 TC (MIN. ) = 18.42 FLOW PROCESS FROM NODE 605.00 TO NODE 604.50 IS CODE = 8 ---------------------------------------------------------------------------- >>)>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<(< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 2.340 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7156 SUBAREA AREA(ACRES) = 14.60 SUBAREA RUNOFF(CFS) = 24.45 TOTAL AREA(ACRES) = 110.88 TOTAL RUNOFF(CFS) = 136.87 TC(MIN) = 18.42 FLOW PROCESS FROM NODE 604.50 TO NODE 604.50 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) = 18.42 RAINFALL INTENSITY (INCH./HOUR) = 2.34 TOTAL STREAM AREA (ACRES) = 110.88 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 196.87 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 196.87 18.42 2.340 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 196.87 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 196.87 TIME(MINUTES) = 18.415 TOTAL AREA(ACRES) = 110.88 END OF RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PROGRA(ti BASED ON SAN BERNAF'PINO COUNTY (S.SC) 1983 HYDROLOGY MANUAL (C) CO DYr-•igrit: 198 � 2 AC.11r'GlY10E3Cl Et'•ILT11'tEC°)^1ft17 Software CAES3 Especially orepared for; HALL & FOREMAN, INC. :C{CCC(C<C((C<(CC(<G(fC<{C(C(<((<<CfC<))))J))J>}}}}})}>)i}%}}}}�•};•}>>})}})}% •n••ri•***.R..y.*.k.*DESt::RIPTION O R'ESLfL'iS�#�h�ad#��•asac#iii#•k#��kai#x�#�•�•►�##•Rx•�#��#�•r•�ka� * FOOTHILL DRAIN HYDROLOGY, LINE 8 LATERAL E x C 100 YR, NODE 69 TO NODE 196 V. N. i T. M.. N 3634-020. 11/23/1988 is # iE• •!i• dE• •&• •ii• •3t # # •li• iF # 9a• •r• •le• # •le• •k •li• # # # dt• # # •le• # •ii• •K• # •% •Y• # # # # •lf• # if• # •iE # •i� •li• �f• # # # •1(• # •k •�• •)e• dt• •Ir• # # •k # # # •k is �i• # •!i• •ii• # # # •k• # if• it•r.� USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF ORADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -..YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1—HOUR INTENSITY (I NCIH/ HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 iBC HYDROLOGY MANUAL "C"—VALUE=S USED Advanced Engineering Software LAES3 SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01 /85 •Yi•#••R•iF•iFii••lf•dt••}e#•If••li•#•k••k•de•#•i'•ii••k#•3i••k•di•#•lt••ii•#9E••)e••ii•##•it•#•)t'••Yc•#•1i••k••lt••iE•!i•if•#•!e••1r•!i••1F•lE-k•#•7i•if••le••k•ii••li•#••iF#•lf••1e••i:•9P•ii•#•lf••Di••li••k#9Fii••3f••k• FLOW PROCESS FROM NODE 170.20 TO NODE 169.00 IS CODE ------------------------------------------------------------------------------ )}'r})RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<( ASSUMED „.INITIAL SUBAREA ^UNIFORM =^---_----_____.._._-_.____.----•-.�_.-..___.._w==... DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K# C (LFN6T; **3) / (ELEVATI ON CHANSE) 7 *#. 2 INITIAL SUBAREA FLOW—LENGTH - 1010.00 UPSTREAM ELEVATION = 1290.00 DOWNSTREAM .LEVrIOv = 1272.50 ELEVATION DIFFERENCE = 22.50 TC — . .-i9;'*C ( 1000. Sln0**3) / ( 2. 50) A**. 2 - i3.290 100-00 YZAiR RP I PJFALL &TENS I T Y (I NC)3-i WOU& = SOIL Ci_AS��Ir.tC:f-ii 1t:C4 IS "i7" S I NGLs -r'AM I LY (1 / i4 ACRE LCT) RUNOFF COEFFICIENT .7634 SUBAREA RUi\NO i" : Cf S) -•^ 27.72 TOTAL rr F J-: �.- i.`�i"�C_t:S t.ALr RF J) - �. !L�. Qli�l T07AL It LiraGt-F- (4 FSi '= C:7. /L, •k• •ri• i4• # # # .k' #.}' # 9i• # # ic' #! •ft #• # •if• -ti• # #i' #'iE •1!• # •De •k• # 3i •% #'.r• di• •Is• # •k• 3:• # •!f• iF di• i?• ii• •3i' iE �S• •#-# �' •ii• ii• 9t ii•*• # �5 �' #'i: iF •;~ ,�c• -;f• •c:� # it• # ,! .a .�'..]!..§!' �. �i• ie FLOW F'n'GC:EaS FROM hJUD_ 16S.00 'i'O iVu!)s= 169.00 1S CODE )>)>>DESISNATE INDEPENDENT STREAM FOR CCNFLLJEI'Jf:E < < { C { CONFLUENCE VALUES USED FOR INDEPENDENT STREAK; 1 ARE: TIME OF CONCENTRATION(MINUTES) - 13.29 RAINFALL INTENSITY (INCH./HGUR) = 3.63 TOTAL AL STREAM AREA (ACRES) = 10.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 27.72 •li•#•li•ie•#•K•ii•#'R•#ii'•lt•3F•ii••lE•#di•#•ii•�f•iF}•#•iE#di-3t••k##•k9F#�i•9i'•k#•Y•ir#iE•ic•k########•iE##'###ie#•►•ii•#iF#dEdt#•le'#•ii••#•###•#if• FLOW PROCESS FROM NODE 170.10 TO NODE 169.00 IS CGDE = 2 -- )) i) % i=ce`s T IONAL METHOD INITIAL SUBAREA ANALYSIS (< ((( _ __ - ---- ASSUMED KITIAL SUBAREA UNIFORM DEVELOPMENT T I S : SINGLE FAMILY 11/4 ACRE) TC = K* (LENGT&**3) / (ELEVATION CHANGE) 3**. INITIAL. SUBAREA FLOW -LENGTH = 850-0Q41 UPSTREAM ELEVATION = 1283.10 DOWNSTREAM ELEVATION = 1272.30 ELEVATION DIFFERENCE = 10.60 TC = .393•xC( 850.oZ##•3)/( 10.60)3**.2 = 14.013 100.00 YEAR RAINFALL INTE NSI T Y ( INCH/HGUR) = 3.518 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY K /4 ACRE LOT) RUNOFF COEFFICIENT = .7606 SUBAREA RUNOFF(CFS) - 26.76 TOTAL AREA(ACRES) = 10.00 TOTAL RUNOFF(CFS) _ 26.76 •le• 3i• •k• # •DF #-ii• •�• #:• ii• # #• ii• •Y• •k• i:• # •li- �• # •�• •k• •K• iE # •1f•## dE •k• # •3e• ii• # d8'k •)i• 3F#'�• i¢• # # # •ib ii• ii•# •ii• •K• �• # •iE'le' •1e• •'r' # 3F# •li• # #• # # iE••ri• p• # •4i• # ii• if• •# ii• #• 3i' FLOW PROCESS FROM NODE 169.00 TO NODE 16S.00 IS CGDE = 1 ))) ?)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE ((< < ()))>) AND COMPUTE VARIOUS cCONFL;JE= NC.',ED STREAM VALUES < < (< < CONFLUENCE VALUES USED FOR INDEPENDENT STREAK) 2 ARE: ----- -- - -- --- - - -- _ -- T .11tE OF CluNCENT� SAT I ON (MINUTES) _ 14.01 RtaraFALL IjaTEhialTY (.INCH. /HOUR) -• 3.52 TOTAL AL S 1REAM AREA QCRES) = 10.00 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE _ 26.76 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUr'iEtER (CFS) 03IN. ) (INCH/HOUR) 27.72 13.29 3.6:32 _ 2 26.76 14. 01 3.518 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR i.STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES; ARE AS FOLLOWS-. 53.10 53.61 COMPUTED CONFLUENCE ESTIMATES E S ARL- AS FOLLOWS: RUNOFF(CFS) - 58.6i TIME ( fry I MUTES) 14.013 TOTAL AREA(ACRES) = 20.00 0 #r.•k •H• •kit• •k # •A •3i• •k # #• it •� •k it•'- # •�• •ii• it• •�• it it• # •'r' is # # ii• # ii• # x• it •k iF it• •k •D• �•-ie•r.• i� ii• }• ii• # •#'• •ii• ii• •� ii• it• #-1i•+• it• ii• # it• �• •D• ii• # •x• it• 3c •�• #• •�• # is• #.y FLOW PROCESS FROM NODE 169.00 TO NODE 170.00 1 S CODE -• -•____._._____ ).'0!)C0MPj7E PIPEFi...OW Ti^ AVELTTME: THRU SUBARE A < ((< < ) >) >) •..::i :i NS .:a.11r P UTr_= R -ESTIMATED P I PES I Z E ( NON -PRESSURE FLOW) (((( ( ' ilw_F'Tr-i OP _.LC?vi TN 39.. 4w INCH PIPE I:i30.1 IIti:C:HGS . -__---•_-.___------..._.__._.----•- PIPEPLOW „rr-- CITY :F E T i SEC. ) = 7.8 .. a J i f 1'1 t i\i CiL i L.. V !•'1 t y CIN '-• 12.7;2.fFi� .it WN'STREAM, NODE ELEVATION -- 1272. Ok'1 FLC:iWLENGTH (FEET) = !i i0o. 0 MANNINGS N .413LS_TMA;EiPiF= L?rrEIEl(i\:z'39.00 NUMBER OF PIPES '' rEFLW THR S.tAFEA(_F-L) - 1 5 J.61 TRAVEL TIME (MIN.) = .21 TC ( !IN.) -- 14-22 ?:.icitit•i:••a ii•it••k•fi•�•ii•#ie�': lit••�•#it•�¢•##•kit•#•!(•it•#it•##i6##iE•##iE••�•###•k#iFir###it•iF##it•#it##it•it•#ii•##3E•�#ir•�i: ir# �•�'••a PLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE - 1 >) > >) DE SI GNATE INDEPENDENT STREAM FOR CONFLUENCE < (< < ( C;l`l.Ns=LUENC.:E_ VALUES USED FOR INDEPENDENT STREAM 1 ARE;____._. _._-_-------_ .__._•�._• TIME OF CONCEN:•RA-f'ItON(MINu,rE_S) = 14.E3 RA.ii'F=ALL INTENSITY -,INCH./HOUR) _ 3.49 TOTAL STREAM AREA (ACRES) = 20.012-1 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE - 53.61 3i••3�#'i•A••�•�t••P••k••k•�•-Js•#••k•Ic#•k••k••kik•,ti•+r#•k�4•�i•�t•�i••k•�t••k•k#�e••lt•#•It•#•Y••x-##•k•)e•k#•#•)t•#•k##�f•#•iEii••k#ar•k###•1e•�f•,:•i��t,••x•#-k•x•ii••'r'••k•k• FLOW PROCESS FROM NODE 170.30 TO NODE 170.00 IS CGDE - E ) > > > > sRATIONAL METHOD INITIAL SUBAREA ANALYSIS < < < < < _- _ -------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* C (Lt=•NG T H*#3) i (F_LE'VATION CHANGE) ]##. .. i\i I T I AL SUBAREA FLOW --LENGTH - 1000.00 UPSTREAM ELEVATION = i276.00 DOWNSTREAM ELEVATION DIFFERENCE 4.00 TC = .293* E ( 10lr 0. 00**3) / ( 4. O0) **. 2 •= ifs. 713 100.00 YEAR RAINFALL !NTENSITY(INCHIHOUR) = 2.952 `N'O!, CLASSIFICATION IS "A" SING=LE-F•AMILY(1/'4 ACRE LOT) RUNOFF COEFFICIENT = .7435 SUBAREA RUNOFF(CFS) - 2.41 TOTAL AFLEA(ACRES) -= 1. 1 o TOTAL RUNOFF ( CFS) = #•#.=•k•34•#•iFi;•it•ir}c•kit•##•kit•�'c••k•�?ia�••}c#•#•#•k•A••3t••kit••k#•k•k••k•k3: iF#�t•#•k•k•l:•#•k•k•It•#•k•k##•k###•kii•d?•it••ti••!t••'s?•it••k•�t••ii•ii•#••X•#•�••i¢••Ts-Si• FLOW r'yCJ::LESS FROM NUDE 170.00 TO NODE 170.00 1S CODE = 1 > ) > •)) DESIGNA T'r_ INDEPENDENT STREAM FOR CONFLUENCE < < ((( ~-____.._^_ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIC ME 0- ICID N CE N TrRAT::C.N(MINLi-FES) = 19. r7 RAINFALL INTENSITY < I NCH. IHOUR) =- 2.95 TOTAL STREAM AREA (ACRES) = i.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE - 2.41 it• •Dl• •is• }: •?; •Yi• •k•'.i• •k•# it-# if• i.• ie # it• it• ii• # # #:• # ii -•ii• •R• # •k• •ii• •k it• ii• i!• it• # •ii• # ii• •k •s• #• it• # #• # # •k # # # # # it• ii• iE# ii• ii• if••Y• is• # # •k # # #'r.•?t• •A:• •k• ;; i'• it� ;;.;: FLOW PROCESS FROM NODE 170.40 TO NODE 170.00 IS CODE = 1 > >) > RATI O,NAL METHOD INITIAL SUBAREA ANALY iIS < (< < < ---- ____-___ ASSUMED 1 f :I' IA" SUIPREA UW I F kM L Y,=LcJt-Msy i.a'.' SINGLE r 11/4 ACRE) _ -- I',*ZQEN3•;-•;•k*3) / (E1_EVATION CHANCSE)S#•x . L INITIAL SUBAREA FLOW -LENGTH = 900.00 ="REAM ELEVATION •'• 1284.00. i1:]WNS REAM EL E VATZON = 1272.00 ELEVATION DIFFERENCE = 12.0 TC = . 3 3* 4 ( 9Z0. 0Z** 3) / ( 1.2. 00) ; *•*. 2 = 14.147 100.00 YEAR RAINFALL !NTENSITY(INCH/HOUR) =- 3.498 BOIL CLASSIFICATION ICA' ION I S "A" S I NGLE-FAMILY (. / 4 ACRE LOT) RUNOFF COEFFICIENT = .7601. SUBAREA RUNOFF(CFS) = 3.113 TOTAL AREA (AC RES) = 1.20 TOTAL t AL Rt3NO F(CFS) = 3.19 #' 3#• ?: at..Y..ie..3.' # •DC• •1!"k• 3b 3f' �?' •ii"k• •)t• # s�' •1i' 3,`' •x• �f' # # •1(' it• •3F' # #'!t' •)f•'� �F #'iF' •ii"le• 3i•')F'li'•1f•'it• 9f' # •�f' #'Dt• �f• •li• •i�")e• # •?�"!t' # #'D• �f• #'it• 3e # # �.• #'bt' #'Ir'�t"1f• iF'h � •k •3�' PLO& PROCESS FROM NODE 170.00 TO NODE. 170.00 I S CODE - 1 ))))) .iESIGNA T E INDEPENDENT STREAM FGR CONFLUENCE < < < ( < ?)))) AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < < (< < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: T lAiE OF CONCENT RATION (;MINUTES) - 14.15 RAINFALL I NTENS I TY (INCH./HOUR) ^ 3.50 ,.0...AL STREAM AREA (ACRES) = 1.20 TOTAL STREAM RUNOFF( PS) AT CONFLUE;`NCE. _ Kis CONFLUENCE INPORMATION: TRE A.M RUNOFF "s IME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1 53.61 14.23 3.486 i s 2. 41 16. 77 2.952 3.19 14.1 3. 4. 98 RAINFALL INTENSITY AND TIME. OF CONCENTRATION RATION RATIO FORMULA(SBC) l ESE.D FOR 3 STREAMS. REAMS. VARIOUS i::ON LU LACED RUNOFF VALUES ARE AS FOLLOWS: 58.62 50.50 58.32 C: lri' UtTE;D C iONF•>_.UE NC';E: ESTIMATES ARE: AS FOLLOWS: RUNOFF(CFS) = 58.62 TIME(MINUTES) = 14,287 707AL. AR wA KCRE S) = 22.313 �• #' •>E•�• # # •k•�• *•'.i• # •k•ih •ii• ei• 9i• # # 9t••#•*• ## •k• *•# #•'3i-# ## # # fir• # iF •x•# •k •�• •k •#•# # *• •De••t�' *••li••�: -k �• ## # ## •N• # •1i• *• #ii• # *•##' # 3i• # # •�•## •h"!F FLOW PROCESS FROM NODE 170.00 TO NODE 172.40 IS CODE = 3 ))))) CuM=.=•UTE PIPEFLOW TRAVEL i IME THRU SUBAREA (< < ( ( COMPUTER -ESTIMATED PIPESI.ZE (NON -PRESSURE FLOW) (< (< ( i1Er`-rH OF FLOW IN ,.s::,. rt`i INCH t'`ri�•`t=. 3S L.;_-ICvCHE;S-----------^--__....__..___._----------- PIPE t- i t- PEF•LOW VELOCITY ( FEET/SEC.) = 13.6 UPSTREAM NODE ELEVATION = 1272.00 DOWNSTREAM NODE ELEVATION = 1268.50 FLOWLENGTH ( FEET) = 170.00 MANN I NGS N .013 ESTIMATED PIPE: DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW T ffiR i SUBAREA(CFS) - 58.62 TRAVEL TIME(MIN.) = .21 TC(RAIN.) 14.43 •ii' # # •!F• •iF # *•-h• # •!E''Y.'• ii• dr # •P• #• # # ;': •k• •Yc••ii• •k• :S ## # #• # •§i• # �i• # # # •fF # it• •k• •Y• # # •i?' # # # *• •#• •!i• •bF• •Yr # •!f•'i'F #;i• •� # •le• #'il• # # # ie• ii• # •�• # F #? 3i� 4r+: �: •'yi• •a: FLOW PROCESSFROMNODE 1'72.40 TO NODE 172.40 IS CODE = i ))) i) DES I GNATE INDEPE=NDENT STREAM FOR CONFLUENCE (< < < < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE:________.___•__._...________ TIME OP CONCENTRATION(MINUTES) A4.43 RAINFALL iyTiLSIT�(INCH. /HOUR) 3. 4 C TOTAL STREAM AREA XCRES) = 22.0.11 : TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _#ir•kif••Y•�i••irdi•�t•di••3E�:••�••k••IF•#•k••Yi•#•1Ki:'••3i•#••3r•3t••1;•k�••#iE#-Di•�4••le••k••k••k#•}t•�•ie••1i•3i-•if••i•it•##•3E••li•#••ii••}•)t••3e•di••i; iE•#•3f•�•9s•##•k•##•1!••s'r' •ri•ii••3f••3t•#•ibir PLOW PROCESS FROM NODE 173.10 TO NODE Q2.40 IS CODE - 2 _ ---------------------------------------------_--_.-----•---------------------•------------•--•---•-- )3)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<(< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* L (LENGTH**3) / ( ELEVAT ION CHANGE) 3 **. 2 INITIAL SUBAREA FLOW -LENGTH = 950.00 UPSTREAM ELEVATION = 1275,00 DOWNSTREAM ELEVATION = 1268.50 ELEVATION DIFFERENCE = 7.50 TC = . 3S^* L t 350. 00**3) / ( 7,. 50) 3 **. 2 = 16.054 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.242 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7530 SUBAREA RUNOFF(CFS) = 11.5E TOTAL AREA (ACRES) = 4.90 TOTAL RUNOFF(CFS) FLOW PROCESS FROM NODE 17a,40 TO NODE 172.40 IS CODE - 1 - )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<(( ---------_-_-- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: --_-----------_-- TIME OF CONCENTRATION(MIMUTES) = 16.05 RAINFALL INTENSITY (INCH./HOUR) = 3.24 TOTAL STREAM AREA (AURES) = 4.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 11.56 PLL•,: PROCESS PROM NODE 172.10 TO NODE 172.40 IS CODE i )• )))) i�AT IONAL METHOD INITIAL SUBAREA ANALYSIS < < (< < __ ------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY 11/4 ACRE) TC = K* L' (LENG I'H*•*3) / ( ELEVAT 1 flN CHANGE) 3 **. 2 INITIAL ;SUBAREA FLOW -LENGTH = 1000,.00 UPSTREAM ELEVATION = 1283.0+ DOWNSTREAM ELEVATION = 1268.517, ELEVATION DIFFERENCE = 14.50 TC = . 393* L ( 1000.00**3) / ( 14.50) 3 **. 2 = 14.510 100.00 YEAR RAINFALL INTE•NSI T Y ( INCH/HOUR) = 3.445 SOIL CLASSIFICATION IS "A'' SINGLE-•FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7587 SUBAREA RUNOFF(CFS) w 13.85 TOTAL ARILM ACRES) = 5.30 TOTAL RUNOFF (CFS) FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 ))))) DESIGNPTE INDEPENDENT- STREAM FOR CONS"LUENCE < < < < < -------------- )>>)) AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < ((< ( CONFLUENCE VALUES USED FOR INDEPENDENTSTREAM 3 ARE: TREA;r;3ARE:--- --- - ----------- _ ___. TIME OF C ONCEN i RA i ION (V;11'%UTE i) '•- %4. ��. RA::N A L 1•;ti" ENSIT`i' (INCH. /HOUR) 3.45 ' TEI71-;:. STrtEr;f-, AREA (rrc,,.r._S) - ,..- .:r i r 0. AL. S I RE N C\v1NOP. {(.,- i) AT CONFLUENCE = i3.85 ;i'i;•'tJR,rtr7 y„>-� RIE 'I RUNOFF r I i:. I N%:,N.61 T Y 1 1N, 12 ER (CFS) (hill, ) (I,NCH/HC)UR) Y US, 62 14.4 2, 3.456 2 .1. 1. ':)G 16. 415 31, L1i•2 RAINFALL It'ti"iENSIT'i AND TIME OFCONCENTRATION RATIO FOR r Fs..i:hr;l)Lr� L'� (Si.::) USEDUSED�R :1 STREAMS. vr�-"y U:tNF _ E PCED RUNF- VALUES A;.AS FULL 1W5: a"-,.16 60.00 as. 1el i3Uit P,'..;TED CONFLUENCE EST.{MATE:.S ARE. AS FOLLOWS RUNOFF(CFS) = 83.16 TIME(MINUTES) = 14,432 TOTAL AREA(ACRES) = 32.50 ia• 4: � :�• •a• •�• ii• �• i'a �• �{• iii• is• •)i• # •�•'1t• •3t• ii• -T< 3f•di• di• 3f• •li' � iF i(• •li• •DF •ii••!F •k• dF •i:• #: •7f• dF �• •k••)F # •ii• iF 9E• •!i•,ti• 3'r •k' •fir dr •iE•di• •k # it• •ri •le• � •)E• �:• •k• •pE• # i�-3:• •�• •k• •!� # •r.• •'r'..'s; .A..3e. PLOW PROCESS FROM NODE 172.40 TO NODE 171.00 IS CODE - 3 ----------------------------------------------------------------------------- y ? • i, ••„ r^ r r• RA rr. .. � ; . i.:C:;}ii-`(..:-('E. i-fl,-•'ErLc.);�: 'i rtr-rvL:..'CIME "ri-iRU SUBAR.:..A ({ { ({ ))))) US . N 7 COMPUTER -ESTIMATED P I PESI ZE (NON -PRESSURE FLOW) (((< ( DEPTH OF '=LOW IN 45.0 INCH FIFE IS 36.8 INCHES _ .___... ____._____.•. :C t'C.1 I_UW YCf._Ut.IT7 (rEGI"/.?Et.. ) i.il=°S"`REAM NODE ELEVATION = 1268.50 DOWNSTREAM REAM NODE:: ELEVATION "- 12613. 00: FL.OWLENGTH(F'E:;ET) = 100.00 MANNINGS N -- .013 ESTIMATED PIPE DIAMETER(INCH) 45.00 NUMBER OF PIPES - 1 ° I PEFLOW THRU SUBAREA(CFS) = 83.16 TRAVEL TIMEKIN.) = is T C(it I N.) = 14.63 r' 3? •�i• 35 ): -k. ik.,`'.',e. •1:• k -t dr :r i:• •k ie• •k• # fi• #• •ii• # •D� •k• •#• •3i• jE• •i4• # -k• i!• •k• -li• •� •b: •li• •3F li•'i• •Yc •%• if• �1F •3�• •1f• it •Dt• iF •k• •k• •'�• iE• •34• •ii• •iE• •4 •k •ii• •�• -'v: •#• •�i• -k •3E• =>~• •#• •� � ?i• # 3i• ib •#• #i• •# PLOW PROCESS FROM NODE 171.00 TO !'NODE 171.00 IS CODE = 1 )) )-)) Dc:.SIG Nw,7E INDEPENDENT STREAM FOR CONF LUENCE (< { < < CONFLUENCE VALUES USED FOR INDEPENDENT T STREAM 1 ARE x TIME 0; CONCENTRATION(MINUTES) ._ 14.63 RAINFALL INTENSITY (INCH./HOUR) =- 3.43 TOTAL STREAM APE.••? (ACRES) = 32.54--1 TOTAL STREAM {"<4:NO r" QFS) AT CONFLUENCE = 81.16 it' �:' 'ff."�'.�.'% •�..�. 1�" �C '�"n" •� .r\. _•�. j'i .�. .�i...�. �.Y'�"-!c'.l•'�:•'�' R' -sC i!• -R 'k' .�..�..�.'r"n }: '�"�' T �"�i"�"�!"I."Ii' �"�:' �f'r' .k'.F T' T' 1C'R"!:' �F.' -if"r",5'7.•']C' 1: '�i"#:' �' �ii...�j. �. u..;'r'�' .� �' .w. PLOW PROCESS FROM M NODE 173.20 'r U NODE 171.40 I S GLIDE _ • 1: ----------------------------------------------------------------------------- )))) Q AT I OVAL METHOD INITIAL SUBAREA ANALYSIS (< < < < ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT NT I S : COMMERCIAL TC = K is (LENGTH**,"'3 `t / (ELEt.AT I ON CHANGE) 3 **. 2 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1281.94 DOWNSTREAM ELEV{-tTlONI = 1273.56 ELEVATION DIFFERENCE = 6.38 [[�� 1 TC _•• . .�fG.�8* E f 1 Y�0z. 'Lf Y.�'h *3) / ( S. 3S) 3 *'k'. 2 =' 12.501 00. OZ YEAR RAINFALL IN`E'ENSITY (INCF /HOUR) = 3.767 SOIL CLASSIFICATION IS "A'' I COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8333 SUBAREA RUNOFF(CFS) = 13.81 L•T%sL F•ssiEr. s ACRcS) = 4.40 ;`'CTFi- F?UIVvFr (CF S) •._ »; . #•'fi• fir '•r4• -k• dF •3;• #• # •ii• •it• 9i• #• •i:• :t• •k- `: •� •i`• •!: d4• i:• # # :ti• # itii• # # t �i• ii• �• di• ii• # -Yi• •kc •if' #• dt• •le• •it• •!'.' •!i• •#• •i:• # i:• # •t; •F• •3f• ii• •'t. •i`.• #• ii-tif• •Y: •li• #:1¢• # •:•� `t• tib• # •ie• •Yr •i! •a•.:. ,Y. •r''. FLOW PROCESS FROM NODE 172.30 1 ` NODE 171.0Z 1S COt.%L' -•' 'rte.? ----------------------------------------------------------------------- )) .)) COMl=jTE S RE2 i FLOW TRAVEL i IME THRU SUBAREA < < < < < UPSTREAM ELEVATION 1273.::e6 DOWNSTREAM REAM ELEJATI:3N ... » 1268.021 STREET LE iNG T H (FEET) == 750.00 CURB HE.IGTH ( INCA iES) - 6. STREET HALF W I D i H ( FEE-) = 26.00 STREET CRO SSFALL ( DEC I MAL) = . ;'. e SPECiF I :'D NUMBER Cir HALFSTRE2 r S CARRYING G RUNOFF = i •i *TRAVE L_T I ME, COMPUTED USING MEAN FLOW(CPS) -- i_.26 .26 STREET i= L(sWJt.PTH <FEET) = .62 i CALF- STR EE 7 FLOODW I DTH ( FEET) = 19.63 AVER: -GE FLOW VELL'CITY(FEET/SEC.) = 3.16 PRODUCT OF DEPTH&VELOCITY = 1.97 STREETFLOW TRAVELTIME (MIN) _» 3.93 T'C (MIN) = 16.43 100.00 YEAR RAINi=ALL IN"f ENSI T Y ( INCH/HOUR) = 3.197 SOIL CLASSIFICATION IS "Ass SI NGLE--FAMILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .706 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF (CFS) - 2.86 SUMMED AREA(ACRES) = 5.60 TOTAL RUNOFF(CFS) = 16.70 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEE"") = .64 HALF S T REST FLOOiDWID T H (FEET) = 20.38 FLOW VELOC,;ITY (FEET/SEC.) = 3.23 DEPTH#VELOCI', Y - 2.07 �s• •§'r •ii• •#• #• •�• •3i- •ic #?• iF # # # # iF •F. # •� �• •X:• # #?f #• if• 3i• •�• tiE •ii• •ii• •�• •st •iF a>.• # •it• •�• •ii• •�• d4• # •�••7F•iF # •i'r'k iE •iE• ii• iF •� iF •i�'�i• •ii• •%•i� ii• # •ii• •3iF •iF # •ii• # #c• # # •iF x of •#•?�• :�• # FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = i ))))) 2:)E(:i I GNATE 1 NDEPENDENT STREAM M FOR CONFLUENCE < < < < < CONF LUEN<aE VALUES USED FOR INDEPENDENT STREAM 2 ARE: I01E OF CO.NCEN T RATION (MINUTES) = 16.43 RAINFALL INTENSITY (INCH./HOUR) - 3.20 T07i- - STREAM AREA (ACRES) = S.60 T CTA- STREAM RUNOFF(CPS) AT CONFLUENCE - 1&70 •� 3• sh �• # •;1 •�: 3-i�• ii •�-•3F #• -k •� •rt• •i�• •?k• •k a=•�• •1Y •'r� •3t• �• •}� •!{• •i@• �:• 3P iE• ir # •iE• # # •3k •if• •ii• if• ii• •k• # •k •3i• # �• 3E # 9E• •3E •ii• �i• •k• •i �• # •ii #i• # •x # �C # •3i• }• •?� •i�• # •sr •if• •3§• #• # •s• •3�• FLOW PROCESS FROM NODI: 172.20 TO NODE 172.20 IS CODE ))))) Riad' I OVAL METHOD INITIAL SUBAREA ANALYSIS (< (< ( _ ...__ ..-__-•-- ASSUMED INITIAL SUBAREA UNIFORM » �•_••.••».•-•»•_---_..-...-_.....__.....__.... DEVELOPMENT IS. COMMERCIAL -.0 = K* C LENGT(-!**3) / (ELEVAT i ON CHANt3F_) 2 #*. 2 i N i Ti iL SUBAREA FLOW -LENGTH _ 650.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1282.00 ELEVATION DIFFERENCE = 13.00 TC = . 303 * C ( 650. 00#•ii•3) / ( 13. 00) .i *#. E = 8.842 100.00 YEAR RAINFALL INTENSITY (I NCH/HDUR) _ 4.637 SOIL CLASSIFICATION IS "A'r COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT - .8364. SU)r{AREA RUNOFF(CFS) = 20.56 TOTAL AREA(ACRES) = 5.30 TOTAL RUNOFF (CFS) - 20.5t; •i:-#•yF�i �s:•;b3=ii•#••st•ii•ik•#� �?•#•li#�••Y.-#i•i••�-#••ii•ii••?�••k••3F••#•iF•s••a;•ir''•i�•�i•#•9r•k••r: ii•#•�•#iF•k••if•# •k•# ##•ic•3c#•DF•ii•iE•ik•ii•iE�c••ir�:-!E•-;t••3�##•7•: •ii•r •k•k•#•ii.-3i� FLOW PROCESS FROM NODE 17.30 TO NCD: 171.00 IS CODE - 6 ))))) COMPU-; E STREETFLOW TRAVELTIME THRU SUEsAREA < (((< - -» _.___. m UPSTREAM ELEVATION 1282.00 DOWNSTREAM I YSt!•- M ZLE.VN I ON = - - 1 ;_Sa. 00 STREET LENGTH(FEET) = 1k:ZZ. 00 CURB H21 "H ( INCHES) = B. STREET r•.1Lr'vv: U7(;-E2i) •-• 26. 00 STREET -"!' C;ROCSF+1_L (D:....0 F MAi_) .... .02130 SPECIFIED NUiiE - OF FALPS RE S CARRYING RUN OFF = **'TRAVEL T IME COMPUTED USING MEAN FLOW (CFS) - 22.07 67REET FLOWD E; T H (FEET) = .64 HALSTCcETFLOCUWI DTH (FEE : ) = 20.38 AVERAGE -LOW VELDCITV(EET/SEC.) - 4.47 PRODUCT OF DEPTH I&VE=LOCITY = 2.86 fSTRE:ETFLOW ',•rRAVELTIME (MIN) = 3.73 "!'C:(MIND - 12.37 100.00 YEAR RAINFALL INTI•=.` S:TY(INC'H/t-DUR) _ 3.755 SOIL CLASSIFICATION IS A COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8332 SUBAREA AREA (ACRES) = 1.60 SUBAREA RUNOFF(CFS) =^ 5.01 SUMMED AREAKCRES) = 6.90 TOTAL RUNOFF(CFS) = 25.56 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _. .66 HALFSTREET FLOODWIDTH (FEET) = 21.13 FLOW VELOCITY(FEET/SEC.) = 4.62 DEPTH*VELOCITY = 3.03 -)F �? *• •ii• *• •�• #• di• ie• *••#• •is• if• *' ii•?4• •ii•ii-'3t •3@ ii• �F iE• *• di' •�• is ii• �r *• � •�• •!r •iF• � iE• ##•iF #aE' # •fe• •�• •�• �, dF.* � 4i• ii' # ii• #• •!i' # 3� is �i• �• •x• *•,�• •3e• Vit• �.:• •ir'K' �: •3i• #• i'c :v •A?• •3E• if• FLOW PROCESS FROM NODE 171.00 TG NODE 171.00 IS CODE = 1 > )) >) DESIGNATE INDEPENDENT STREAM FOR CCIONFLUENCE < < < < ( >r > > > AND COMPUTE. VARIOUS C.'ONFLUE NC:ED STREAM 'V'ALUES ((< ( < CONFLUENCE VALUES' USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.57 RAINFALL INTENSITY (INCH./HOUR) = 3.75 TOTAL STREAM AREA <ACRES) = 6.90 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 25.5G, CONFLUENCE INFORMATION: SIRE A%M RUNOFF TIME INTENSITY INUM%ER<CFS;) (NEIN. ) (INCH/HOUR) 1 83.16 14.63 3. 429 21 16.73 16.43 3.157 3 25.56 12.57 ., .755 RAINFALL INTENSITY €SND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCE D RUNOFF' VALUES ARE AS FOLLOWS: 121.36 i Ic. 00 i01"3. a1 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 11.36 TIME(MINUTES) - 14.826 TOTAL HL AREA (F° CR:=ra-) = 45. 0LA •k:•ii'�f.iF'il"�'qt")S"�l.'�t'.yl"yt•'h'.�C'.}('�t.'jZ"�t �i"�")t"�.�t'yt.'ik"1F'yS"�"ji'.�jf.'}."*"p.'y!'.k"1t"i!'�{"k"k'.k"jk"1!"�'.�"y"K"�'Ip'if'3h�!!'�.')!'.x.'r"�")F"�"3:'3!.'�,c"�"!l'3:•'r�'b:'#'�F !`i'3t"i!".'!"i: �F' FLOW PROCESS FROM NODE 171.00 TO NODE 197.00 I S CODE = 3 > > > > > COMPUTE PIPCFLOW TRAVELTIME THRU SUBAREA < (< < < )) >) > USING COMPUTER -ESTIMATED IIPE SIZE. (NON -PRESSURE KOW> (< (< < DEPTH OF FLOW IN 48.0 INCH PIPE IS 39.0 INCHES P PEFLOW VELOCITY (FE:ET/SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1266.00 DOWNSTREAM NODE ELEVATION = 1561.50 FLOWLE NG T H (FEET) = 850.00 MANNIINGS N - .013 ESTIMATED PIPE DIAMETER(INCH) = 48,00 NUMBER OF PIPES = I PIPE FLOW •THRU SUBAREA(CFS) = 12i.36 TRAVEL T IME (r IN.) -= i.28 TC (111 N. ) = 13.90 id' 9t"�• 9e• it• �. iv yt. •�:' •& •iC• •)t it #. '#• �. # # •1F• �•'i(. •�C•'i(' •i: �;• fi..p. •!L•'SL•')t'.k..�. 3(. •�•'Ye •3t•'1t' •�' •l• •3?")f �. q;. +• .yc. •�,• .K # .}, .}t �. •it;•'i+•.1;.'j�' •1i• y;. # •ii• •�;• -}!• # •DC # •K•'7C 'i<• �• �C'.�.'+: �" Vit' 3'= �: FLOW PROCESS I-tCCM NODE 197.10 TO NODE Q7,00 I S CODE = B )!)))ADDITION OF SUBAREA 70 MAINLINE PEAK FLOW < (< < < 100,00 YEAR RAINFALL INTENSI"f Y ( INCH/HOUR) •- 3.261 SO. -LI.- ""__ .--•--•--._._.__._____. ' COMMERCIAL D JELOF,rE vT RUiFFCOEFFICIENT 2,307 ;al..lk{AREA AREA NACRES) 3.50 SUBAREA RUNOFF (CFS) = 9.48 TOTAL AREA (ACRES) - 48.50 TOTAL RUNOFF<CFS) 130.64 TC(MIN) = 15.90 #:�••i:••R-�•i'''4r•h=#-)i•#4i•i@ii•ii•###iii•i'i•+•####ii••k•}#•le•9i•if•�•ii•#•K•###:•i•##########•�••li•#•k•�'-?t•#####•)t•###••�•�t•;t••lt•#•k•###•#•� FLOW PROCESS FROM NODE 197.00 TO NODE. 198.00 IS CODE .. 3 )))?)COMPUTE PIPEFLOW TRAVELTIME: THRU SUBAREA < < < ( ( )>>)) USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) < < (( < DEPTH OF FLOW IN 45.0 INCH PIPE IS 31.6 INCHES F'IrEFLOW VELOCITY(FEET/St C.) = 15.8 UPSTREAM ,•IUF1E ELEVATION - 1261.50 DOWNSTREAM NUDE ELEVATION = 1257.50 FLOWL.ENG T 'H (FE ET) = 230.00 MANN NGS N = .x[113. ESTIMATED PIPE DIAMETER(INCH) = 45.00 NUMBER OF PIPES = I PIPEFLQW THRU SUBAREA (CFS) = 130.84 7 RAVEL T1ME (M1A& ) = .24 TC (MIN.) = 16.14 34• # •}t''it'':(•'lf' •if' #• i!' �t•'%t• �l• # # # it" �2"M' #•h")t' �' j: jt. •jp # 9f' # # #'iE •li• jl"jf' # 9E• # # •1F •14• •k• di• dr is # iF• •ls' •1!• •Ls• # •it• •#' •x' �i• p• iF # p• -Yr ih •#.• # •�• #M.•'Ji' # •iE• 9i• �:' � • •k' # •iF •DE' # FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = i '))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE (< < < < CONJIrLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.14 RAIN; -ALL INTENSITY (INCH./HOUR) - 3.23 TOTAL STREAM AREA (ACRES) = 48.5141 TOTAL STREAM RUNOFF= (CFS) AT CONFLUENCE = 130.24 ,�..#; i• •ib •�. �:. #i• �;. �• •� jf• •k• •ii• ii• #:••K: #:•df•# # •it••Ji• •�• •1i• # •ii••ie• # # is• # •ii•## •?(• #•�••li• •Y'• ### ds• # # # # # # # •li•i�• # i{• 3i• •H• •DF i• •l.• fie• •'r' # #• •r 3i• �• t• til:• # # #• i£•'A5 fi:•'sE •�: FLOW PROCESS FROM NODE 198.20 TO NODE !SS -10 IS CODE _ c: ---------------------------------------------------------------------------- ))))) RATIONAL METHOD INITIAL SUBAREA ANALYSIS < (< ( < ASSUMED INITIAL SUBAREA ;JN:I-QRS; DEVELOPMENT !S: CONDOMINIUM TC = K* C ( LEN TH**3) / (E LEVAT I Qin CHANGE) 3 ##. NIT IAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1274.00 DOWNSTREAM ELEVATION = 1268.00 0 ELEVATION DIFFERENCE = 6.00 TC = . 3 9* C ( 1 lZ0. 0 **3) / ( G. 00) j it#. 2 = i5.836 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.269 SOIL CLASSIFICATION I5' "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7827 SUBAREA RUNOFF(GFS) = 4.86 TOTAL AREA(ACRES) = 1.90 TOTAL RUNOFF(CFS) = 4.66 FLOW PROCESS FROM NODE 198.10 TQ NODE i98.30 IS CODE = 6 )))))COMPUTE STREETFLOW T RAVELT•IME THRU SUBAREA < < < < ( _- ------ UPSTREAM Ft:_} -M Ei...EVAt1ON -= !%8.46 DOW'__K-ELEVATION - 1i5. kCi STREET LENOTH (F_ET) --• 375.00 CURB HE I G T h (I NC:HES) = S. i S REE i C• 1`r-I,._FWIDTH (.^(_ET) - 32,00 STREET CR S F 1LLD7MAQ = . 0240 SPECIFIED NUMBER OF HALFSTREETS S f..ARRYING RUNOFF = 1. +a* RAVEL I IME COMPUTED USING MEAN FLOW(CFS) 6.15 STREET T FL.OWDEP T H (FEET) = .47 RALF STRE E T FLOODW I DTH (FEET) = 13.48 AZ�AVERAGEAVERAGEFLOW VEL.00:MY. �.: s (-'FEE ccT l'acG. ) -- 2. 60, PRODUCT CT OF DEPTHtiVE-LOCI T Y = i.231 ST RES I FLOW TRAVELT IME (MIN) ^• 2. 40 Tim (MIN) =^ 18.0i 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.003 SOIL CLASSIFICATION IS „A„ CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7767 SUBAREA REA A REA I PORES) 1. i o SUBAREA RUNOFF(CFS) = 2.57 SUMMED AREA (ACRES) = 3.00 TOTAL RUNOFF (CFS) = 7.43 END OF SUBAREA S'i REETFLOW HYDRAULICS; DEPTH(FEET) = .50 HALFSTREET FLOODWID T H (FEET) = 14.42 FLOW VELOC: I TY ( FEE T /SEC.) = 2.77 DE PTH*VE LOC: I TY - i.38 #+i#•k�F•'•E#�•�••!t••I6+E•-ii-•36iE•#*•ittiE?k•x##•ft••ifd€•�f•4r#•ii••#•3i•ie•#•3e•tiR•*ie••3i•*tii•*•3e••!e•*•'i:•iQ•*•ii••k•lf•�i•ii••k•�E•*•iF•?�?•iE�E•�i-*•!�•a •r K #�'r�: -k•i��F•s•#x �i2 FLOW PROCESS FROM NODE 198.40 TO NODE 196.30 IS CODE = C; -------------------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(<(< 100.00 YEAR RAINFALL INTENSITY(:NCH/HOUR) = 3.003 SOI-. CLASSIFICATION IS "A" E• iINGLE.--FAMILY (1 /4• ACRE. LOT) RUNOFF= COEFFICIENT = .7453 SUBAREA (AREA (ACRES) = 1. aO SUBAREA RUNOFF (CFS) = 4.03 7 £ T AL AREA (ACRES) 4. ao TOTAL RUNOFF(CFS) = 11.46 TC: (MIN) = 18.24 .}r3i.y..ii..ie•dc•'z•ii•-)E•#-!••li•##•iF•#•k9F+i••if•ib•ii••k+i•-)E-+i•icif•iE•D••,K•1i••k••11••1(••1i••14••7�••ie••if••iEyd••3i••k••i�-•DE•iI••ii••if••�F••N•+E••i•9t••l4••3r•k••le•+f•+f••)f•#'r•bi•i�•x••3E+£••ii••iE#•ik•�t-+?••i�•1 if• FLOW PROCESS FROM NODE 198.30 TO NODE 198.00 I S CODE = 6 --------------------------------------------------------------------------------------- ))))) COM UtTE STREETFLOW TRAVELTIME THRU SUBAREA < (< < < UPSTREAM ELEVATION - 1265.00 DOWNSTREAM ELEVATION -- 1257. 521_..._.. -- STREET LENGTH(FEET) _ 750.00 CURE{ HE I O T H (INCHES) = S. S , f:_%'I HALF-WIDTH(FEET) = 32.00 STREET CROSSFALL (DECIMAL) = . 0240 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 ***RAV EL•i IME COMPUTED USING MEAN FLOW(CFS) - 13.43 STREET FLOWDEPTH (FEET) = .56 H ALFS`d-REE T FLOODWIDTH (FEET) = 17.23 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.59 PRODUCT OR DEPTiH&VELOCITY = 2.02 S7REE.TFLOW iRAVELTIt+E&MIN) = 3.49 TC(MIN) = 2!.73 100.00 YEAR RAINFALL INTENSITY (I NCH/HOUR) = 2.704 SOIL CLASSIFICATION I5 "A" SINGLE-FAiY I LY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7337 SUBAREA AREA(ACRES) _ '2.00 SUBAREA RUNOFF(CFS) _ 3.97 SUMMED AREA(ACRES) = 6.80 TOTAL RUNOFF(CFS) = Q.42 42 ENI) OF SUBAREA S T REETFLOW HYDRAULICS: DEPTH(FEET) = .59 HALTS T RTEE T F• LOODW I D T H ( FEET) = 16.!'7 FLOW VELOC:I T Y (FEET/SEC.) = 3.72 D =P"i H*VELOCITY - 2. #•k •7t• #+i -•f. * #• •3r+a•+i• # # •it• * # #•�• # •1k•+i• •;t * #• •Ir iF •iE••DF* •if•+�• # *ii• #•ie •A• •;i• ••"sr •x• x 3r ri• :4ii• C4••i� # # •it•ri• * *+F+F �•+E• •k#-ri-4::c• of •#• is %* •�� * # 3E• •PF9E• yF+i- •�• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 ------------------------------------------------------------------------------------ ))))) DESIGNATE INDEPENDENT STREAM FOR CONFLUENC2 (< (( < )>>>? AND COMPUTE VARIOUS CONFLUENCE:D STREAM VALUES < < < < < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE.- TIME RE:TIME OF CONCENTRATION(MINUTES) = 21.73 . RAINFALL IN7ENSITY (INCH./HOUR) = 2.70 TOTAL STREAM AREA (ACRES) = 6.80 TOTAL STREAM RUNOFF(CPS) AT CONFLUENCE = 15.42 - CONFLUENCE INFORMATION: . STREAM RUN0rF T 1111 INTENSITY NUMBER (CFS) (11,11N.) (INClq/HOUR> 1 130.84 16.14 3.231 2 15.42 21.73 2.704 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: ' 142.30 124.91 ' COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF'<CFS> = 142.30 TIME(MINUTES) = 16.144 ! TOTAL AREA(ACRES) = 55.30 ============================================================================ ENn OF RATIONAL METHOD ANALYSIS 0 RATIONAL METHOD HY1)POIL.O Y CCJi+'f,•=`U-F :---R F -:!R0 ,RA!Y BASED ON Clr-N BERNARDINO COUNTY 4SBC) 38 HYDROL(.".)GY MANUAL il:) COI:'1W-illilt 1982. Advanced Erjoirte{:.ri.rid!Software rAE=S] H�dLL & FOREMAN, INC. {fC({{<CCf<C<C((C<ff<<{<(((<(C{f<{C{C<}:'}))}})),''))})}?}}))}?})}3)}}tJ)3})';})} •�s•#•:�••�••�••��••�#DFSL:Kar'i It7;`� CiF RcSUL�rS#�-#�•#a�##•�•###a�-�#�•�s#•�#•�####•�•##•�#�###•x••x•-�#••�•###�••�i• FOOTIHILI_ DRAIN' HYDROLOGY, LINE 8 LATERAL E � 0 25 YR, NODE 69 TO INODE 198 t V. N. /-T. M. , ,Ii' 3834-2120, l", /23/ 1968 r •w-�•�••r�•A•#ae•-�###•�•#•r•a�•�•�e••n•�•-�•es•#•r•#ai•#•�•at-�•as••x•####a��•a�##•►##•x•#•�•�••�a�••��###•�•�-oaf••�•ai•#•��i•#•�•�#•n••�•ar##�i•#:�# LISE R S 'E.CIF I•ED HYDROLOGY AND HYDRAULIC: MIDDEL —INFOR,`+iATION; USER SPECIFIED STORM EVENT(YEAR) — 25. �Zl0 SPECIFIED MINIMLilr PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE 9 10—YEA R STORM 60—MINUTE: INTENSITYCINCWHOUR) _ .980 100—YEAR STORM 60—M Ar NLJr,'E INTENSITY (INC H/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA STORi'li EVENT - 25. 00 1—Hi UR INTENSITY ( INCH/HOUR) = 1.1520 (_SLOPE OF INTENSITY !JURAT ION CURVE = .6000 ' BBC HYDROLOGY MANUAL "C"—VALUES USED <(<<<{<<(<<<<<<<(<<<(<(((<<(((<<<<(((<}))}}}))/})))}))+/}/)}))}}))?}))}))}})`. Advanced Engineering Sc:iftware CAES-,+ SERIAL No. AQ)580A REV. 3. 1 RELEASE DATE: 5/1411/85 i•t�•�i••h•-f�••R•ii•#•c.•�••ie•#•3i••k••i�•�E•�••?i••if•#•k•�i••lr####ic�E••k•#•3i•#•)i••li•#•le#•k••lt•#•?;•iF####:••k••lf####•3E•###�i•ar#•k-#ai••16#•3�•#�:•+••is•#ie••yi•#•k•k•ab FLOW PROCESS FROM i+JODE 170. 20 TO NODE 169.00 IS CODE — ----------------------------------------------------------------------------------- RA?'i£.1iVMF7L�llliE'ii—iCiD—:CPvITIAL—SUL{AREA_A#'•IALYSIS < (< < C_____ ___....•____-- ___� _�,...___. ASSUMY;ED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* C (LE 'NGT'H**3) / (ELEVATION CHANGE) 3 * *. I N I T I AL SUBAREA FLOW—LENGTH = 1000.00. UP'ST'REAM ELEVATION = 1293. 00 DOWNSTREAM ELE=VATION -- 1272.50 I ELE A' ION D!Fr EREI\,(;,l_ x. ,='2.50 :.1 1 4 1l-, __• .93*.r ( 1000. i(^i'1.V.�*3) I � 22. SO) 3**. L = 13. L9Q` 25.00 YEAR RAINFALi_ INTE NGI T Y ( INCH/HOUR) = 2.846 SOIL CLASS! F I CAT I C7N is ,I A„ S I NGLE—FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = , 7395 SUBAREA RUNOFF(CFS) — 21.105 TOTAL PREP (ACRES) 1 j'1_s. k"i 0. TOTAL RUNOFF (CF G) _ 21.05 •le• •Dt• •Ie• •le• •le• ii• •p di• 3r •Dt• •ii• # �!.' •!e• •le• 9f •fib •s• � # •k• ii• •#: •)f• #• �• •# • •?i• •�• •lE •H• •k if• #: •Y:• ie• •ii• ~t •ti• -Y• #i• ii• •it• •!�• ?i• •R• d!• 3?• #? •)t• # # ii• i• * •#• •k if• dE- •3t• ie• •k• #:• *> •k• •# •R• it• •h• •k i!• •�• -lt• # •3i• •!i= FLOW PROCESS FROM NODE 16S.00 TO NODE 169.00 is CODE - ) ) :) ; i AIGNATE 1NDErENDENT STREAM F Z {Efir- C: �NFLU= {',{CE VALUES USED FOR INDEPENDENT STREAM 1 ARE: 7IME OF = 13.29 RAINFALL INTENSITY (INCH./HOUR) TOTAL STREAM AR A KC.R 0 = 1 o. 0Vti TGTAw STREAM RUAOPF(CF S) AT CO PLUENCr = 21.05 fie• -!� •?b •R• •�• (t�i•1 •k• 7tif• •ii• •Di• �i• •3i• •k- •�• #:• •H• dErk •k •le• NODE �•k, •ii• •k• •)r •3t••r. •le• •li• •if• •Y• �••!i�• # •1� (•kms fi• NODE #; •3i• 9E• •D• •le• •k• •li••k •�E• •1� # •lf• CODE •fk- •r�- •1¢• •3i• •ii• •,� •3�• •3i• •#• •h• •�i• # -):• # •3e• �• #i• •ie• -)F •??• •�• FLOW PROCESS PROM NODE i /•c.�. 10 T O f, ODE 169.00 :S CODE � c•! ----•^-'--- --"----------------._........_.-------------------'------------------^-----------.-___..__.-- ))))) RA T I OVAL MET{-tE.ID INITIAL SUBAREA ANALYST S (< < < < ASSUMED INITIAL SUBAREA UNIFORM _._______------•-----__. DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = I;* {: (LENGTH**3) / (ELEVA T I0N CHANGE) 7 * . : N I T IA:_. :SUBAREA FLOW -LENGTH = 850.00 1. PS TRE:A{ri ELEVATION = 12$s. 1 Qt DOWNSTREAM EL.EVt-)TION = 12,72. 50 ELEVATION DIFFERENCE = io.60 TC = . S93* C ( 85 . 00**3) / ( 10. 60) ? * *. 14.013 25.00 YEAR RAINFALL !NTENSITY ( INCH/{ -•!OUR) = 2.757 SOIL CLPSSIFIC>r-)-( .ON IS ''A" SINGLE -•FAM I L•Y (1 /4 ACRE LCT) RUNOFF COEFFICIENT = .7359 SUBAREA RUNOFF(CFS) 20.29 TOTAL AREA(ACRES) = 10.00 TOTAL RUNOFF(CFS) ^ 20.29 iE••H• it• •ii• iEi+• T• •k• if• •)i• •�• •)s• 9F •1t••3F •h• •�• it dE •� #• di• •ti• ir9t• # •�• •if• dE •lF iE •k• 9F •3i• •)i••iF •x• #• #r •if• de• #• �i• iE• •3f• Ji• •)(• •3f• if• •li• #• •lE •le• #:•-!E• •li••k:• ii� # •k• #• •k• •k• �• •k •le• •DF• #:• •it• •�• if• # •YF •k #; •ii• FLOW PROCESS FROM NODE 169.00 TO NODE 169.00 IS CODE = f ))))) DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < ((< ( ))>)) AND COMPUTE VARIOUS CONFLUENCED STREAM `JALUES (< (< ( CONFLUENCE LUENCE VALUES USED FOR INDEPENDENT STREAM -._- ARE: -`----___ ._ __.-----•-___-.. T :Ikti OF CONCENTRAT I ONI (MINUTES) = 14.01 RAINFALL lN7ENSITY ?INCH./HOUR) ^ 2.76 TOTAL STREAM 6tt••�AREA (ACRES) 10.0y) r TOTAL STREAM RUNO^F �it.r3-S) AT CONFLUENCE 20.29 CONFLUENCE INFORMATION: S" 11. R AM, RUNOFF TIME INTENSITY NUMBER (CPS) (MIN.) (INCH/HOUR) ------------------------------------------------------------------------------------ i. i'_` 1 . 05 13.29 2,846 2 20. is J 14. i:1 2.757 RAINFALL I NTENS I T1' AND TIME OF CONCENTRATION RATIO l: ORMULA ISBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS e 40.29 40.68 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: : RUNOFF (CFS) P=• •� 0. Su TIME XINUTES) = 14.013 TOTAL AREA(ACRES) = 20.00 •it••�••iF•#i•ii••)E••k••iE#•DPdE•Ti••k••1t•k••!E•�••�•#i••lE#:•##•R••lE•iF•Yi••)t••ie••k•ji••ii•#it••k••3f••le•iF•#••3'.•#•Yi••k••h••irk••�•K•#•#•IEdP•k••}'.••3F�,'•#••k•i�#•1E••ici •1�#•aF•r.•.k.•#.i: •� �f#lli••fr FLOW PROCESS FROM NODE 169.00 TO NODE 170,00 I S CODE _ J --Y _- )))) i COZYPU`F'E PIPEFLOW Tr AVELTIME THRU SUBAREA ((< < < ))))) US I NG COMPUTER -ESTIMATED P I PE S I Z E ( NON -PRESSURE F LOW) (< ( t DEPTH O • FLOW IN 236.421 1 NCH PliDE 26.3 INCHES P:PErLOW VELOCITY(;-EF_C/SEC.) = 7.3 UPSTREAM NODE ELEvP T IO3N = 1272. Sl DOWNSTREAM NODE ELEVPTION -= 1272.00 F=LOWI_.ENGTH i ( FEET) = 100.00 MANN s NGS N - .013 ESTIMATED PIPE DIAMETER(INCH) 36.00 NUMBER OF PIPES - i °IPE FLOW THRU SUBAREA (CFS) - 40.66 TRAVEL TIME(MIN.) -. .23 `FCKIN.) = 14.24 92.96 92.9N iF• •D6 •K• 969^•92.92• # # # # -Y• # # is # fi• # •k• 96 96 96 92• # 9i• 96 9E # •12• # 96 •#• •�• 96 �• #• # # # 9c it 9692• •�• # •#� 96 •� # 9r # 92• ib 96 92.96 9r-1:• 96 96 96 # # 9t• 96 •#• 96 •tb 9i• # # # FLOC;' PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 ---------------------------------------------------------------------------------- ) T)) )• DESI0NA E INDEPENDENT STREAM FOR CONFLUENCE < (< < < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 14.24 RAINFALL INTENSITY (INCH./HOUR) - 2.73 TOTAL STREAM AREA (ACRES) = 20.00 0 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE - 40,68 96•#'9692•#96•n••#•#96ic96•Di•9i••R•92•#9E 96969691.969i•96969b•k96969E9696##9i•969E•k•9692.9f•##i696#96#iF92.9E 92•#9F•96969i•969E•96#•)6'32•#•!'96�(•9f•92•##9; :�#.'x• FLOW PROCESS FROM NODE 170.30 TO NODE 170.00 IS LODE - 2 ----------------------------------------------------------------------------- ))))) RATIONAL METHOD INITIAL SUBAREA ANALYSIS (< (< ( ASSUMED INITIAL SUBAREA UNIFORM _ ___.______.-•-_-__.. DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K# 0 LENGTH#963) / (ELEVATION C-iANGE) ] **. 2 INITIAL SUBAREA FLOW -LENGTH = 1010.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVATION = 1272.00 ELEVATION DIFFERENCE = 4.0373 TC: = . 393* C ( 1000. 0u5**3) / ( 4. 0k) 3 •k *. 2 = 16.773 :5.00YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.313 SOIL CLASSIFICATION 16 "A'' SINSLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7140 SUBAREA RUNOFF (CFS) = 1.82 TOTAL AREA(ACRES) = 1.10 TOTAL RUNOFF(CFS) 92.9s• }• ib 9691.92.9691-•3692• •k 92.91.92•# •Ye #i 9696# i:• 9(• 969E 92.96 •)2•-)6.32.96 # # 96# 9r 96 9696 9i• 96 # 92• # # # 9692.9692.9r # 9t# # # #3.96 96 # 9f 92.9` if•9f• if•i4 # •T: •ib #.• •K• 92.91 # # FLOW PROCESS FROM NODE 170.00 TO NODE 170.00 IS CODE = 1 )))KDESIGNATE NATE INDEP'ENDENT STREAM FOR CONFLUENCE < < < < < CONFLUENCE VAL=UES USED FOR INDEPENDENT STREAM 2 ARE: ______._.-•--•-••-- TIME OF CONCENTRATION(MINUTES) = 18.77 RAINFALL INTENSITY (I NCH. /HOUR) = 2.31 TOTAL STREAM AREA (ACRES) = 1.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.82 fi• •}; 9(•,t• ii• •,�• •�• 92• # •}: # 9i• #'�' �:' �• # •/r 92• # 92•#9692• #•96#•96 ## 9692.96 96 9691.9692.92• •#• 96### 92• # ## # 96 # # 9h # # 92• # 9i•# #• # # 92• �;• 96 •X 92• # # •h: 96 #''�' # 9i• # FLOW PROCESS FROM NODE 1773.40 TO NODE 170.00 IS CODE. = 2 - ))))) I• A- ION-AL-M`r-"`' HOD--INITIAL-SUBAREA-ANnLYSIS < ((< (---------------------.--_-__-. ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC == K*E (LENGTH#*3) / (ELEVATION CHANGE) s**. 2 INITIAL SUBA REFI FLOW -LENGTH = 900.00 UPSTREAM ELEVATION = 1284.00 DOWNSTREAM ELEVATION = 1272.0141 ..ELEVATION L I F•FL- RE.NCE _ moo oo TC = . 39 3* C. ( 900. S+0* *3) / ( 12.0 ) 3 **. ;_ = 14.147 25.00 YEAR RAINFALL !NTENSI TY (INC:H/HOUR) =- 2.741 SOIL. CLASSIFICATION IS "A" SINGLE--FAMIL` KI/4 ACRE LOT) RUNOFF COEFFICIENT _ .7353 SUBAREA RUNOFF!CFS) 2.42 TOTAL AREA(ACRES) = 1.20 TOTAL. RUNOFF(CFS)2.42 •ie••i�•K•�•i•#•bi•>: ii••lt•##•>i••k•�•#•lci6ii•###••3F•##•#####•�•x••Y•####•ii•##ae•#•x•#•�•ii•#ir•i5•�i•###•}r##•3f••3i•##•k##•r•r' ####,r: �t #+R•#;: FLOW PROCESS FROM ;'.ODE 170.00 TO NODE 170.00 IS CODE -. ) )• >) > a1i SI GNA T E INDEPENDENT STREAS? FOR CONFLUENCE < ((< < > >) > > AND COMPUTE VARIOUS CONFLUE.NCED STREAM VALUES < ((< ( CONFLUENCE VALUES USED FOR INDEPENDENT ;STREAM 3 ARE: _ ~ TIME OF CONCENTRATION(MINUTES) = 14.15 RAINFALL INTENSITY (INCH./HOUR) = 2.74 TOTAL STREAM AREA (ACRES) = 1.20 TOTAL STREAM RUNO F iCFS) AT CONFLUENCE = 2.42 CONFLUENCE INFORMATION: 1"REAfti RUNOFF= TIME INTENSITY NUMBER (CFS) (MIN. ) (INCH/HOUR) 40.68 14.24 2.730 2 1. iii: 18.77 2. 313 3 2.42 14.15 2.741 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SBC) USED FOR 3 STREAMS. VARIOUS CONFL.UENC.,ED RUNOFF VALUES ARE AS FOLLOWS: 44.45 38.32 44.20 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS RUNOFF (CFS) = 44.46 TIME(MINUTES) _ 14.240 TOTAL AREA(ACRES) = 22.30 #••Yr#•k?i•#•k••k#�i•3i••lt••Y•it•#i4•jf•#�E••}t••Yi••1E•###•li••IE••iE•#•!F••if•#ib###•Y:••3E•#-k-##•k•li•#ie••3E##•�E••,�••Se••A•#9i••li•�E•#3E•#i£••iE••k••3E••3e••Di••3� •R'.'.F.,4� x•ki•K••R�i FLOW PROCESS FROM NODE 170.00 TO NODE ---------------------------------------------------------------------------- 172.40 IS CODE = 3 > > > > > COMPUTE PIPEFLOW T•iRAVEELTIME THRU SUDARE A < (< (< > > >) ) ..SING COMPUTER -ESTIMATED P I PES I ZE (NON -PRESSURE FLOW) < < < < < DEPTH OF FLOW IN 30.0 INCH PIPE IS 19.8 INCHES -- P I PEFLOW VELOCITY (FE:ET / SEC.) = 12.9 UPSTREAM NODE. ELEVATION -= 1272.00 DOWNSTREAM NODE ELEVATION = 1268.50 FLOWLENGT•H(FEET) = 170.40 MA,NNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = r'IPEs-LOW T HRU SUBAREA (CFS) = 44.46 TRAVEL TIME(MIN.) = .22 TC(MIN.) = 14.46 # •F• •k• # # �;• # # di• # •k• �i• •k••D-# •k• •k•,!• •1�• �i• �f• # # 4F •Y # •�• •k• # ii• # # # iE• •!i• # •Y:• •k• •k• �i-# �• # •!f• •#• •►• # 3c •if• # •3i• •k• �E• •k• # # •ie• •k• •Y:• aE• •li• # # sE tiF •ii• •k iE 3E• ii• # •i(• •�i• fit• �i# FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 >)) >) DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE (< < ( < CONFLUE=NCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) - 14.46 RAINFALL INTENSITY (INCH./HOUR) = 2.71 TOTAL. STREAM AREA (ACRES) = 22. 30 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 44 46 •li• # di• •T:• •Fr # de• # •1F• •Yc •ii• •#• !• •k• # 9i # -k• •3i tiF tib i^ # # fie• # •k• *• ct• # # # # is 5&• # # # •tt• •3a dr 4: # # #-i:• ii• •)i• # •R• •fr •'r' •i: # tiF •i`.• # •)t• •if• di• �• ie• •%• if• # •7r -ia # # •� •it• •ii •ie• r'• •!t •�:• FLOW "PROCESS FROM NODE 172.10 TO NODE 172.40 IS CODE _ )?)>) RATIONAL METHOD INITIAL SUBAREA ANALYSIS (< < < < ------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = 'K* E• (LENGTH#*•3) / (ELF_VAT I ON CHANGE) ! *#. 2 INITIAL SUBAREA FLOW --LENGTH _• 950.00 UPSTREAM ELEVATION = 1276.00 DOWNSTREAM ELEVAION = 1268.50 50 ELEVATION DIFFERENCE = 7.501 TC = . 39.3*E ( 950.00**3) / ( 7.50)3##.2 = i6. 05Z, 25.00 YEAR RAINFALL !NTENSI","Y ( INCH/HOUR) = 2 . Cz'r1 SOIL CLASSIFICATION IS „A„ SINGLE -FAM I LY Q /4 ACRE LOT) RUNOFF COEFFICIENT = .7262 SUBAREA RUNOFF (CFS) = 9.04 TOTAL AREA(ACRES) = 4.90 TOTAL RUNOFF(CFS) = 9.04 •1i--ia• •iE• # •h: # •lE• •F:• # ,1�• •I4• #:• •?5 �i• •1�• # ii• # # 9i• •li• # -Y.• •K• •16 •k• �i• # # ii• •le• # # •li• •li• # # •Y• # # # # 9£• •Df• �i• # # •3f• # # it• �i• # �f• ri• -ib # •li• •Y:• # # iF # •!f• ii-# i:• # iE �i• ai• •14• •K• i,-li• FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = i ))))) DESIE-GNATS INDEPENDENT STREAM FOR CONFLUENCE < < < < < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.05 RAINFALL INTENSITY TENSITY (INCH./HOUR) = 2.54 TOTAL AL. STREAM AREA (ACRES) = 4.90 TOTAL STREAK RUNOFF(CFS) AT CONFLUENCE = 7.04 r FLOW PROCESS FROM NODE 172.10 TO NODE 175.40 IS CODE _ 2 L )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS((<<< ASSUMED INITIAL SUBAREA UNIFORM D,EVEI._OPMtilNT 19; SINGLE= FAMILY (1/4 ACRE) TC = R* E (LEN2TH*#:.3)/ (ELEVA'T'ION CHANGE.) 3 *#. INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1263.012t DOWNSTREAM ELEVATION = 1268.50 ELEVATION 3N DIFFERENCE = 14.52, 7C = . 393*C ( 1000. 00#*3) / ( 14. i0) 3 *•#, 2 __ 14.510 25.00 YEAR RAINFALL INTENSITY (INC.'H/ HOUR) = 2.700 SOIL CLASSIFICATION IS „A„ S I NGLE-FAMILY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7335 SUBAREA RUNOFF(CFS) = 10.50 TOTAL ►•AREA ( ACRES) == 5.30 0 TOTAL RUNOFF(CFS) = 10.50 FLOW PROCESS FROM NODE 172.40 TO NODE 172.40 IS CODE = 1 i) >)) DE SIGNATE INDEPENDENT STREAM FOR CGNFLUENCE < (< < < ------ f)>)>AND COMPUTE 'VARIOUS CONFLUENCED STREAM VALUES < < < < ( CONFLUENCE VALUES U:"-.iED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) _ 14.51 RAINFALL !NTENSITY (INCH./HOUR) - 2.70 TOTAL ST REAM AREA (ACRES) = 5.30 TOTAL STREAM RUNOFF (C.•FS) AT CONFLUENCE = 10.50 CONFLUENCE INFORMATION: STREAM (RUNOFF TIME INTENSITY NUMBER (EFS) (MIN.) (INCHIHOUR) -------------------------------------------------------------------------- 16. iL15, 2.541 r ?�l ):.`VL'1-1iL INTENSITY EitiS:.'•Y A\iU TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS Ct. NFL'UENCED RUNOFF VALUES ARE A5 FOLLOW: [; 0,7 601. 68 63. 04 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: rcUNt. P (CESS) = 63.07 ''IME(MINUTES) i4.460 TOTAL AREA (ACRES) __ 32.50 -3E•�••�;•�..�•�;.•i:•#,'E•#•�•# 3:••k•�#•�•.�•�;••k••k••Yi•-,'F•#•-k•#•###'�•#•r•#######•�••�••�•�•�.dr.�..�••�•##*•st#####•k•�•###•li•##9i•�•##•3E•-�•##,!•#• FLOW PROCESS FROM NODE 172.40 TO NODE 171.00 IS CODE ---------------------------------------------------------------------------- ) >) >) COMPUTE PIPEFLOW TRE- VELTIME THRU SUBAREA (< < < < > > > > > USING COMPUTER -ESTIMATED PIPESI ZE (NON -PRESSURE: FLOW) < < < < < DEPTH OF FLOW IN 42.0 I NCH PIPE: IS 31.4 INCHES PIPEFLOW VELOCITY(FEET./SEC.) = 8. UPSTREAM MOUE_' ELEVATION = 1268.50 DOWNSTREAM NODE: ELEVATION M 168.00 FLOWLENGTH (FEET) = 100.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 P I PE:FLOW THRU SUBAREA(CFS) = 63.07 TRAVEL TIME(MIN.) = .20 TC(MIN.) = 14.66 ii•##•##�{•ii.##•li•##•�••if•#######•3i•###•k##################•iF•�•#########�•#�i•####•�•###•#•�E••ii•ii•###### FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = 1 ------------------•_----------------------------..------------------------------ >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: --- TIME OF (..":ONCENTRATION (MINUTES) = 14.66 RAINFALL INTENSITY ( INCH. /HOUR) 2.68 TOTAL STREAM AREA (ACRES) =.�� 2 ,` -t JL TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 63.07 #• •k• ii• `i• •k• # # ii• •?r ?i#?F •3f• 9i• k• # •Tc •k• # •� •i� •�• # •it # * i• di• # # •R• #• -ii• •�• * 3i• •�• # # # 3E # # # # •it• # # # df• •lE # if• # # it # •ii• •k• -�• # # # •k• # •#• ii• •It• •lE• •�f• # •)f• •�f• •3i• •k # FLOW PROCESS FROM NODE 175.20 TO NODE 173.40 IS CODE ---------------------------------------------------------------------------- >) >) > RA T I OVAL METHOD INITIAL SUBAREA ANALYSIS < < < ( ( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT I S : COMMERCIAL TC = I :* E ( LENGTH**3) / (ELEVATION CHANGE) ? * ec . INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION ON = 1281..34• DOWNSTREAM ELEVATION = 1273.56 ELEVATION DIFFERENCE = 8.38 TC = . 303 • E: ( 1000. 00**3) / ( 8.303".2 = 12.501 X125. 00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = '. 352 SOIL CLASSIFICATION IS "A„ COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT -- .8287 SUBAREA RUNOFF(CPS) = 10.77 TOTAL AREA(ACRES) _ 4.40 TOTAL RUNOFF(CFS) = 10.77 •iF�k•�i••k #:••k•!e•*•;i�###•JE###-k•*•##.�#•bi##•dr•li•*#*•3E••k�-!r#•K••k•-Y••it•#•k•*##•1i-di#•�•-k•#•k#•!t••96.3i•*ii•ii•-A:•di•#•iE•IE•3•:*�E•3;•#•Di-•�•it•###9E•?t••?i•# CESS X73. ,30 TO (NODE 1 7 k I S CODE - 6 PLOW PROCESS 5. r rl�t;tij NODE 1�^ r' � -- > > > >) COiti PUTE ;:STREETFLOW T RAVELTIME THRU .SUSAREA ((< < ( UPSTREAM ELE V A i'I C;N -- 1273..`56 DOWNSTREAM ELEVATION Y266.01, STREET i._ENG H ( FEET) = 750.00 CURB HEI 4TH (I NCH ES) - S. STREET Hr7•LFWIDTH (FEET) = 26.00 STREET CROSSFALL (DECIMAL) - . 0240 SPECIFIED NUMBER OF H(sLr-STREETS CARRYING RUNOFF = I •3 *TRAVELT I ME COMPUTED USING MEAN FLOW(CFS) 11.84 STREET FL.OWDEf TH (F=EET) _ .57 HALF ST FSE:: T FLOODW I DT'H ( FEET) = 17.38 AVERAGE FLOW VELOCITY(F '...:> /aEC.) = 3. 1I PRODUCT OF' DEPTH&VELOCITY = 1.77 STREETFLOW TRAVELTIME!MIN) = 4.02 T 01IN) _ 16.52 25.00 YEAR RAINFALL !NTENSITY ( INCH/HOUR) -2.498 SOIL CLASSIFICATION IS "A" SINGLE -Fr'• M i LY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7241 SUBAREA ARE=A(MCRES) _' 1.10 SUBAREA RUNOFF (CFS) _ 2.17 S;JJw.MED AREA (ACRES) - 5.60 TOTAL RUNOF=F (CFS) = 12.04 - END OF SUBAREA STREET':= LOW HYDRAULICS: DEPTH(FEET) = .59 HALFSTREE:T ,'-LOODWIDTH (FEET) = 18.12 FLOW VELOCITY(F•EET/SEC.) = &14 DEPTH*'VELOCITY 1.84 'iE•9: #•#••M yd• -Y. ##*F � •A= ##iF#i•drr, ##•if••#•x •k•##•ie•#*i-#*F•####�i-i;•�#:••i<•;�••�••M••iF###•1F••1F•�••De•# ####•#i•!#3ck•A`#*i••k •x #?4••� #'k•##*: fi: FLOW PROCESS FROM NUDE. 171.00 T O NODE 171.00 IS CODE - 1 -------------------------------------------------------------------------------------- > > > >) DE=SIGNi ATE INDEPENDENT STREAM FOR CONFLUENCE (< < < < C-ONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: z' h1E OF C011ICEN T Rf4-, ,r 7N (M I NL1'1'ES) - 16.52 RAINFALL INTENSITY (INC:H./HOUR) _ 2.50 TOTAL STREAM AREA (ACRES) _ S.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.94 FLOW PROCESS FROM NODE 172.20 TO NODE. 172.20 IS CODE = y --------------------------------------------------------------------------------------------- > > > > > RATI OVAL METHOD INITIAL SUBAREA ANALYSIS (< < ( ( ASSUMED INITIAL SUBAREA UNIFORM _ ... __- DEVELOPMENT IS: COMMERCIAL TC = K* E QENGT'H**3) / (ELEVAT ION CHANGE) 3 **. 2 INITIAL SUBAREA PLOW -LENGTH 650.00 UPSTREAM ELEVATION = 1295.00 DOWNSTREAM ELEVATION = 1282.00 ELEVATION DIFFERENCE = 13.00 TC = . 303* C ( 650. 00* *3) / ( 13. 00) 1 * *. = 8.842' 25. ZZ YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.63A. - SOIL CLASSIFICATION IS "A„ COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8327 SUBAREA RUNOFF (CFS) = 16.04 TOTAL AREA (ACRES) = 5. 30 TOTAL RUNOFF (CFS) 16.04 FLOW PROCESS FROM M NODE 172.30 TO NODE 171.00 0 1 S CODE - C ------------------------------------------------------------------------------ > > > > > COMPU T E ST'RE E T FLOW TRAVELTIME T: -TRU SUBAREA < < < < ( UPSTREAM ELEVATION =.. 1282.00 DOWNSTREAM ELEVATION - i266.00 STREET LENGTH(FEET) = 1000.00 CURS{ HEIGTH ( INCHES) S. STREET HALFWID T H (FEET) = 26.00 STREET CROSSFALL (DECIMAL) = . x1,;'_•40 SPECIFIED NUMBER OF HALFSTREET•S CARRYING RUNOFF = 1 ** T RAVELTIME COMPUTED USING MEAN FLOW (CFS) - 17.99 STREET F LOWDE, T H ( FEET) _ .59 ._FS•i`REIT Fi_i:+z3i)w,lDTHO E•E T> AVERAGE FLOW VELOCITY ( FEET/ ;EC.) = 4.3E, PRODUCT OF DEP TH&VELOCITY -= 2.55 `,STREET " W T:' AV1EL T IME(MiN) = 3.82 TC(MIN) == !2.66 25.00 YEAR RAINFALL INTENSI TY (.(N•', H/: -OUR) •- 2.930 CLASSIFICATIONSOIL COMMERCIAL DEVE=LOPMENT RUNOFF COEFFICIENT - .8285 SUBA •ER AREA(ACRES) - 1.60 iaL.J:'-iAREA RUNT iFF (CFS) 3. SUMMED AREA(ACRES) - 6.90 TOTAL AL RUNOFF ( CFS) = END OF SUBAREA STREETFLt: W HYDRAULICS: DEPTH(FEET) = .60 HALFATREFT r C1mnWTDTt••iiF'Pi»T) .= t -A'A FLOW 'VELOC T. TY ( FEET/SEC.) = 4.47 DEPTH#VELDC I TY = •t"--',. 70, •K• •;4• •if• 34• •i!• •,!'• •k• •�• # # ii• #• # ok # # it # # # }i• # # # i• # }r •!i• # •ic # # # # •# # iF dF •le• # }F jf• # # •lt• }t• •k •li• •1i• •k• �i• # •le •!s• # }i• •)i• dr •A # �: •k• iE• •�• .}r. •34• ii• iE• •;F it k -k # h• }i ;: FLOW PROCESS FROM NODE 171.00 TO NODE 171.00 IS CODE = ))) > > DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < (< < ( ))>? )AND COMPUTE. VARIOUS CONFLUENCED STREAM VALUES < ((( < CONFLUENCE VALUE'S USED FOR fR INDEPENDENT STREAM 3 ARE; T I NIE OF CONCEINTRA T I ON (MINUTES) = 12.66 RAINFALL INTENSITY (INCH./HOUR) = 2.93 TOTAL STREAM AREA (ACRES) = 6.90 TOTAL STREAM RUNOFF= ( CFS) AT CONFLUENCE - 19.92 CON LUE'NL•E INFORMATION: STREAM RUNOFF T I Ml INTENSITY I'diS#dSER ------------------------------------------------------------ (CFS) (MIN.) (INCH/HOUR) i 6 3. 217 14.66 2. 68:3 ' 2 I 2. 94 12.94 c 16. 52 , L. 11,98 i I 3 19.92 J` 12. 66 2.930 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO) FORMULA4SBC) USED FOR „ STREAMS. VARIOUS CONT L.UENCEED RUNOFF VALUES ARE AS FOLLOWS: 92.80 88.65 64.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNS f3'"F (CFS) = 92.80 TIME (MINUTES) _ 14.664 TOTAL AREA(ACRES) = 45.00 •x�•#ae•#•ta##•r:-•�•�•#�••�e•�•x•ac•#�••�•��i•�••�#�i•##ai•#•�##•�#*•�##•>~ie•#at•##�••�e•#ai•##}t••�##�i•##•�•�•�e•�•�i•ai••x•#•�•##�•ai•#�••�•�•��••�• FLOW PROCESS FROM NODE 171.00 TO NODE 157.00 IS CODE = 3 >)!?? COMPUTE PIPEFLOW T RAVELTIME THRU SUBAREA < < (( < ))) >) USING COMPUTER -ESTIMATED PIPE SIZE (NON --PRESSURE F•L.OW) (< < < ( -DEPTH -OF._FLOW w IN .•err. 0- INCH F{IPE. IS --aG. 4--INCHES----=-------� 1 PIPEPLOW VELI -:CITY (i.:,EET/SEC.) = 10.6 UPSTREAM NODE. ELEVATION = 1268.00 0 DOWNSTREAM NODE ELEVATION = 1261.50 F LOWLENOTH (FE E T•) = 850.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) 45. 00 NUMBER OF PIPES PIPEFLOW HRU SUBAREA(CFS) 92.80 = 1 RAVEL TIME (MIN. ) = 1.34 f•C (MIN. ) = !6.01 }i• •iF # # #•Ti• 9t•7i• jE• #•3F• # it• 9f• •K• •it•k• ii• # # •it• # # }i• dF?► }i• di• # •3f• # }i• •Di-# •ie• # iE• }i• # # •1E •� •3i••iE Y:• #i(• dF %ii• •!� }i•# •ir # •li•}F •!i• fii• # 36 dr •k }E •M• •§�: •H•?4• #•L:• :i• fit• # �t •�:• •�• FLOW PROCESS PROM NODE 197.10 T O NODE 197.00 I S CODE _ $ ----------------------------------------------------------------------------- ))))) ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < (( ( 25.00 YEAR RAINFALL !NTENSITY(INCH/HOUR) = 2.546 Y I SOIL CLASSIFICATION IS "A" CL<<M',•�'`r'=7i�i:� r`I_D�EV�E•Li,�r�'F�{'cl'v � 'RUNOFF SUB EA RES) 3.50 TOTAL AREA (ACRES) - 48.50 TC (MIN) = 16.01 COEFFICIENT = .8253 SUBAREA RUNOFF (CFS) = 7.35 TOTAL RUNOFF(CFS) = 100. 1 "5, #-1i•-Y•#•�•ic•k•�:••k�•ii•#�•#�•#•a••�•###•�#####�i•########•ii•##•ii•#•Y:•#####•►?•#-r••k•##########de•ii•#•�•#•k••3i•###•i�#•kip �i PLOW PROCESS FROM NODE 197.00 TO NODE. 198.00 IS. CODE - 3 ----------------------------------------------------------------------------- ))))) COMPUTE ' I PEF LOW! TR i= V ELT I ME TH RU SUBAREA < ((( < .) )>) USlivu COMPUTER -ESTIMATED F IPESIZE (Nt"lN-r-FE,.>caUn'E E=LOW<) t < t ( ( DEPTH OF FLOW IN 39.0 INCH PIPE IS 30.2 INCHES PIPEFLOW VELOCITY (FEET/SEC.) = 14.6 UPSTREAM NODE ELEVATION = 1261.50 DOWNSTREAM NODE ELEVATION = 12 / r JAL) FLOWLENGTH ( FEET) = 230.00 MANN I NGS N = .013 ESTIMATED F'ID'E DIAMETER(INCH) = 33.00 NUMBER OF PIPES PIPE_FLOW '!TRU SUBAREA(CFS) = 100.15 -TRAVEL t IME (MIN.) = .26 !C (MIN.) = 16.27 •t•�:•�••si•#•#••iE••D••k####•if•###ii•#####•#•le--)t•######•k•###•if•##ii•#•k•#•�•#################•k••R#######•1►#•k••�•iF•# FLOW PROCESS FROM NODE 178.00 TO NODE 178.00 IS CODE = 1 ))))) DE S I BNATE INDEPENDENT STREAM FOR CONFLUENCE < < (< ( CONIPLUENCE VALUES USED FOR INDEPENDENT STRE=AM 1 ARE: --- TIME OF CONCENTRATION (MINUTES) = 16.27 RAINFALL INTENSITY (INCH./HOUR) _ 52 TOTAL STREAM AREA (ACRES) = 48.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 100.15 ###•k•#i(•########•k•###•k•##ii••li•###�•#ei•##•D•############•1Fri•######�i•####ii•###�•##•le•�i••�•-��+ �#-�,� �; �i FLOW PROCESS FROM NODE 17H.20 TO NODE 198.10 IS CODE = 2 ----------------------------------------------------------------------------- ))))) RATIC!NAL METHOD INITIAL SUBAREA ANALYSIS < < ((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: CONDOMINIUM TC = i;# E ( LENGTH# *3) / (ELEVATION CHANGE) 3 i;-#. 2 INITIAL SUBAREA A FLOW -LE NG'i`H = 1000.00 UPSTREAM ELEVATION = 1274.00 DOWNSTREAM ELEVATION = 1.266.00 ELEVATION DIFFERENCE = 6.00 TC _... . 317# f. ( 1000. 00#*3) / i S. 0+c1) ##, - 15.838 25.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.562 SOIL CLASSIFICATION TION IS "A„ CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) _ 3.72 TOTAL AREA(ACRES) = 1.70 TOTAL RUNOFF(CFS) _ 3.72 ##�i•#•ii•3i###•y##•Y:•#•te•�E•#•ii••k••k•#####•k•#ie##9r#•li•###•Y••�••1E•######ii•##ii•#dt••k•9E•i4••)e•###df••DF�i•#•�•########•1F•4f••k## FLOW PROCESS FROM NODE 198.10 TO NODE 178.30 IS CODE = 6 ____._ >) I >) COMMUTE STREETFLOW TRAVELTIME THRU SUBAREA < < < (( UPSTREAM ELEVATION = i266.00 DOWNSTREAM ELEVATION == 1265.00 STREET LENSTH (FEET) _ 375.00 CURB HF_IGTH ( INCHES) - S. STREET HALFWIDTH (FEET) = 32.00 STREET CROSSFALL (DECIMAL) _ . 02 40 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 ** T RAVEI_T I ME COMPUTED USING MEAN FLOW(CFS) = 4.693 STREET FLOWDEPTH(FEET) .44 HAuF S T REE7 FLOODW I DTH i F EET) -- i2.08 AVERAGE FLOW VELOCI : Y (FEET /SES...) _ 7-,. 2.43 PRODUCT OFDEPTHCi�iJELOCI T Y 1.07 STREETFLOW 'f RAVELTIME(MIN) = 2. 07 TC 01151) - 18.41 25.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2,340 SOIL CLASSIFICATION IS "A'' CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7559 55 SUBAREA r' REA (ACR S) = 1. io yUSAREA RUNOFF (CFS) -- 1.95 SUMMED AREA(ACRES) = 1.00 TOTAL RUNOFF (CFS) = 5.67 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .46 HALFSTREET FLOODW I DTH ( FEET) = 13.02 FLOW VELOCITY(FEET/SEC.) = 2.56 DEPTi-I#•'.VELOCITY = 1. 1•;� # •iE �?• •k !• tit• it• •ii •Hie •tF at• dF• •k -k •k'Xr ti4• •k � #'e •k •k •*• ii' $: tiE• •k jf• # •3t•'1f"if'tiE •iF•lE •k •k 9E• •it• •k •3e• 3F •3F 3F iE 9i -•k jE •k iF dE• •fE• � x �F *c •k iE• •if• tic •f •3f• -ir •k �• •ii' #:' hi• 7: 7: h •fi• •tQ :+F �: FLOW PROCESS FROM NODE 198.40 TO NODE 198.30 IS CODE = Ei -------------------------------------------------------------------------------- ))))) ADI) I T I ON OF SUBAREA TO MAINLINE PEAK FLOW < < < < ( 25.00 YEAR RAINFALL INTENSITY<INCH/HOUR) = 2.340 SOIL CLASSIFICATION IS „A„ °G I NGLE-F'• AM 1 LY < 1 /4 ACRE LOT) RUNOFF COEFFICIENT _ .7156 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 3.01 TOTAL AREA(ACRES) = 4.80 TOTAL RUNOFF (CFS) = 6.68 TC(MIN) = 18.41 ?t• •�• ie #•kit• #•9i• •A:•'1F• •if• •i4• -k •k;i• •it• tie• •k •#• •k •3f• 9F••k •k •#• *'r dt• •k• i>.• di• dE •k•k •DF •Ii• iE if• �E •k � •�• 9r •3s• df••k•k •k ii• dE••�• 9F •�•�E•tit• •k iF ti{•ii• •k •iE dE •li• •9F •Y:• •k iF di• •i'.• it• •'r' # •lt• #• •�• •k �• FLOW PROCESS FROM NODE 158.30 TO NODE 158.00 IS CODE = 6 ---------------------------------------------------------------------------- )))))COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA((<(( UPSTREAM ELEVATION -__--1265. 00 --DOWNSTREAM-ELEVATION--~- 1257,50 STREET LENGTH(FEET) = 7.0.00 CURD HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 32.00 STREET CROSSFALL(DECIMAL) _ .0240 SPECIFIED NUMBER OF HAL.FSTREETS CARRYING RUNOFF = -I * * T' RAVEL T I ME COMPUTED USING MEAN FLOW(CFS) _ 10.14 STREET FLOWDEPTH (FEET) = .52 i HALFSTREET FLOODWIDTH(FEET) = 15.36 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.37 PRODUCT OF DEF' T H&VELOCITY = 1.70 STREETFLOW TRA-1VEL T IME (MIN) - 3.71 TC (MIN) _ 22.121 25.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.096 SOIL CLASSIFICATION IS "A S I NGoE-FAM I L'Y (1 / 4 ACRE LLAT) RUNOFF COEFFICIENT = .7000 � SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF= (CFS) - 2. 53 SUMMED AREA(ACRES) 6.80 70TAL RUNOFF ( CFS) = END OF SUBAREA STREETFLOW HYDRAULICS„ DEPTH(FEET) =• .54 HALFSTREET FLOODWIDTH (FEET) = 16.30 FLOW 'VE.LOC:ITY (FEE:T/SEG:.) = 3.45 DEPTH*VELOCIT'Y = 1.87 a��;t•x; *: tira��~t•tit•� tiF•��c ��tiE�xtit•~�*�•����*�tit•a������tif��������tiF��ai•*: �*�titi��tiN���a��ti���tiR ��c ���a�•���� FLOW PROCESS FROM NODE 158.00 TO NODE 198.00 IS CODE = 1 )))) 1 DESIGNATE. 1 NDEPENDENT STREAM F'OR CONFLUENCE ((< < ( COMPUTE VARIOUS CONFL_UENCED STREAM VALUES < < (< < CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 22.12 RAINFALL INTENSITY (ITCH./HOUR) = 2.10 TOTAL_ STREAM AREA (ACRES) = 6.60 TOTAL. STREAM RUNOFF (CFS) AT CONFLUENCE = 11.61. STREAM RUNOFF TIME INTENSI f Y NUMBER ; FS) &MIN. ) CINCH/HOUR) -------------------------------------------------------------------------------------- 11. si 22.12 2.096 RAINFALL INTENSITY vTE CSTY ANiTIME OF CONCENTRATION INCENTRAi1rN R=TT O FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS C ONFLUENCED RUsNOFF VALUES ARE 4 -) FOLLOWS. ioVE9 94. 90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 108.69 TIME(MINUTES) 16.269 TOTAL AREA(ACRES) ,_ 55..30 END OF RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PR:]G'rif;M BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL 7n71CNA. 127PZI &VER:.22Y =2VPj72R PR03R0� BA= 0% SnX ZZRNORDINO ZOUN7Y TSBC) SEEZ &vDRj!m2Y MANip- :7 2-avrignt 19SE Advancat Enpinoarnny Soflware :n22,7 Esmecially orepared fur., FALL & FOREMAN, lNQ FOOTPZLL DRAIN HYDROLOSY, LINE B LATERAL G n 100 YR, NODE 130.1 TO NODE 140 V.N./Km., jN 3634-020, !:/23/1988 • WEER SPEC:7:ED HYDROLOGY AND HYDRAULIC MODEL lNFORMATIONg -------------------------------------------------------------------------- jSER 32ECIFIED SMM EVENTIYEAR) 100.OZ QECZFlED MINIMUM PIPE SIZE(INCH) 18.00 STECIF:20 PERCENT OF G(,ADIENTS(DECIMAL) TO USE FOR FRIC710N SLOPE S5 0 -YEAR 870RM 60 -MINUTE lN7ENSITYCINCH/HOUR) .98Z, 100 -YEAR S70RM 60 -MINUTE :NTENSITYCINCH/ HOUR) 1.470 • COMPUTED RAINFALL INTENSITY DATA: STORM 2VEN7 = 130.00 !-HOUR lNTENSITY C INCH/HOUR) = 1.4700 C? ZNTENEVY DURMTION CURVE = .6000 I EEC KYD20.0GY MANUAL "C" -VALUES USED Auvanced Engineering Software CAES3 SERIAL No. A0580A REV. 3.i RELEASE DAT0 5/01/85 FLOW PRCCESS FROM NCDE 130.10 TO NODE 130.10 IS CODE 2 ------------------------------------------------------------------------------ )));)RATIONAL Mi_ ,'I' =71AL SUBAREA ANALYSIS(4(4< ASSUMED ZNITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*ZCLEN37H**Z)/(ELEVATION CHA4GE)3**.2 :N=Al SUBAREA FLOW -LENGTH = 780.02) UP27REAM ELEVATION = 1235.52,• =WNSTREqM E.EVAKON = 1216.00 ELEVPTION DIFFERENCE - 19.512.1 TC = 11.781 10000 YEAR RAINFALL !NTENSITY(INCH/HCUR) 3.904 SOIL CLASSIFICAT:ON IS "All SINGLE-FAMILY(i/4 ACRE LOT) RUNOFF COEFFICIENT = .7694 SUBAREA RUNOFF(CFS) 10.51 TOTAL AREA(ACRES) 3.50 TOTAL RUNOFF(CFS) 10.51 F-04 IROZESS I' D. NODS 1301Z 70 NODE 130.10 1S CODE ----------------------------------------------------------------------------------------------- )));lDESl3%P7Z 1NDEPENDEN7 S7REAM FOR CCNFL3ENCE(C4(e CONFLOENCE VALWES USED FCR !NDEPENDEN7 STRERX 1 ARE: 71NZ CT C2NCZN7RA7TON=NJ7ES) 11.78 NPINFAL! :xTENSITY CINCH./kOUR) 3. TC7A. S7REAT AREA (ACRES) - &5z =AL ETREAK Rw%CFTQFSj A- CONFLUENCE DROCESE FROM NODE Q0.20 70 NODE i30.10 18 CODE 2 ----------------------------------------------------------------------------- 1303RATIONAL METHOD !NZTIAL SUBAREA ANALYSIS((4(< ASSUMED 1NITIAL SUBAREA UNIFORM DEVELOPMENT 18; SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTm**2)/(ELEVATION C7RNGE)3**.2 :NITIAL SUBAREA FLOW -LENGTH = 750.00 OPSTREAM ELEVATION = 1221.00 0CWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = KOO 7C = .393*:( 750.00**0/i 5.00)3**.2 = 15.108. 100.OZ YEAR RAINFALL ! )ti TENSITY(INCH/hOUR) = 3.36� S= CLASSIFICAT:0N 1S "A'' SI7OLE-FAMILYK/4 ACRE LOT) RUNOFF COEFFICIENT = .7565 SUBAREA RUNOFFCCFS) 4.07 TOTAL AREA(ACRES) = 1.60 TOTAL RUNOFF (CFS) 4.07 FLOW PROCESS FROM NODE 130.10 TO NODE 130-10 18 CODE ------------------------------------------------------------------------- ))))3DESl3NA7E INDEPENDENT STREAM FOR CONFLUENCE((((< )>)>)AND =MPUTE VARIOUS CONFLUENLE" 87REAM VALUES(<((( • =NrLUENZE VALUES USED FOR 1NDEPENDENT STREAM 2 ARE: 7 1 rE OF CONTENTRAT 1,01N (Ml INUTES) 5. '_ 1, RAI %7AL! INTENSITY (INCH./HOUR) 3.36 TOTAL STREAM AREA (ACRES) = !.Still TOTAL STREAM RJN0FF(CFS) AT CONFLUENCE 4.07 1. _NCE !NFORMATION: STREAM RUNOFF TIME TNTINRITY NUMBER ICF83 (MIN.) (INCH/HOUR) 0. S, 1. 78 3. 9 ell 4 iM 4. 0 7 "i. J. .1. i 3. 3&'3 RAINPALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULACSBC) USED FOR 2 STREAMS. VA00US CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 13.69 13.13 COMPUM CONFLUENCE ESTIMATES ARE AS FOLLOWS: RiNOFF(CFS) = 13.69 TIMECMINUTES) 11.781 T07AL AREA(ACRES) = 5.10 FLOW PROCESS FROM NODE 120,10 TO NODE 110.50 is CODE :3 ----------------------------------------------------------------------------- ))?3)COMPU7E PIPEFLOW TRAVEL, TIME .-1-;RU SU8AREA(f<<( )1))ILKNI PIPESIZE l NON-PRESSuRE F-04V)M(( DEP-H OF 7"ow 0 21.0 ZNCH PIPE 1S 15.4 INCHES PIPEFLOW VELOCITYKEET/SEC.) = 7.2 WP87REAM NODE ELEVATION = 1216.00 DOWNSTREAM NODE ELEVATION 1215.50 F=WLZN37H(FEET) - 50.00 MANNINSS N Oi2 ESTIMATED PIPE DIAMETERCINCH) 21.00 NUMBER OF UPES P:PEFW3W TARj SUBAREACCFS) 13.69 7RAVEL 71ME(MIN.) = .11 TC(MIN,) FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 is CODE --------------------------------------------------------------------------------------------- !))!)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(C<(< C4N74UENCE VAL-'Lj;.:_-S; 'USED, FOR INDEPENDENT STREAM I ARE: 71ME 07 ZONCENTRATICN(MINUTCJ) 11.90 RAINFALL !NTENSITY (INCH./HOUR) 3.88 _,.t_; "i-`,;... STREAM AREA (ACRES) = 5.0-1 707A! STREAM RUNOFF(CFS) AT CONPLUENCE i3.69 FLOW PROCES8 FROM NODE 130.30 TO NODE 00.50 is CODE 2 ---------------------------------------------------------------------------- Q)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<(<(< ASSUMED INITIAL SU8AREA UNIFORM DEVELOPMENT 1% SINGLE FAMILY (1/4 ACRE) T-'_' (LEI,,.,'GTH**3) /(ELEVATION CHANGE) 3**.2 ZNITIAL SUBAREA FLOW -LENGTH = 1000.00 • jPS7REAM ELEVATION = 1233.00 DOWNSTREAM ELEVATION = iRiG.00 ELEVATION DIFFERENCE = 17.00 71 = .393*c( 10 -ii .0z**3)/( 17.00)3**.2 14.056 100.00 YEAR RAINFALL INTENSITY(INCH/HDUR) 3. 51 1 SOIn CLASSIFICATION SINSLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT - .7604 ljBAREA RUNOFF(CFS) 16.56 70TAI AREA(ACRES) - 6.20 TOTAL RUNOFF(CFS) 16.5E. • ir tiE it • • • tit FLOW PROCESS FROM NODE 130.50 TO NODE 130.50 is CODE K)))DE8IGNP7E INDEPENDENT STREAM FOR CONPLUENCE<<<<( >0>>AND COMPUTE YARIOL. S CONFLUENCED STREAM VALUES(<<<< CONPLUENCE VAIUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CO;"NCEl-r'RATION (Iyi'.rNUTES) 114.1716 RAINFALL INTENSITY (INCH./HOUR) 3.51 TOTAL STREAM AREA (ACRES) = 6.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 1&56 CCNFLUE NCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) QNCH/HOUR) i F, 1 516 14.06 3 . St 11. RAINFALL INTE;NSITY AND TIME OF CONCENTRATION RATIO FORMULA(SEC) USED FOR 2 STREAMS. VARIOUS CONF:LE NCED RUNOFF VALUES ARE AS FOLLOWS,. COMPUTE.. CCNFwUENCE i:.8 . ....f•s i .. _ ARE 'r':.+ r-t.:•LL(,Jv:& RUNOFF(CFS) 4 ,S"r::.(MI."ti=F.t - 1TOTAL 4.056 S t •1':. a�..k..k..�; .�..�. b..�..�i..A:• �:• # •� •i; ii •,!• •3»•,':..�..};. ;e; .�. �;..*..,��- .}. ,1j. •3t•.Y:. •y: •i: •1":• �'* i$ •tr •?i• }• 3j. •s:. •k• •y. •�. i s •�:. ;f..k• # �A # •'s£• •#:• 3:•;i..�..�. }..j...�. ±;. -it• d�• 7. � �,....�..r...y,. � �r.;�..�r.., ..;. �..� , .OW PROCESS FROM N21.iE 13050 TO NCDE 130.00 IS CEfDt. - .. ------------------------------------------------------------------- i t )! vt.: :r1t_ r C. 1-r 1 !•' f.'..." L_4: i :i'A VC;_T a iY,t:. TH!'QU SUB;-;REfi < < ((( ) t t ) • - - 7.. C�• r.. .. C• r: T r, r-• Y(NON-PRESSURE r i iJ:..9.,. ,,.. : i'',^ri. -� Lc'1""E �.r i r*,'i-{ i ,_�Y t' _ I-• r_� � LL Lt1W) l ( 1 C t _ _«".: FLOW:a 33.0 lNCH PIPE IS 25.7 C.7 INCHES PKEFLOW VELOCI T Y (t-EET/SE C. ) = .r -..i. 8 UPSTREAM NODE ELEVATION = 1215.50 DOWNSTREAM M NODE ELEVATION -- 1214.80 FL.t.ir•i.....;:NGTH ( FEET) = 200.00 M)'HNN I IY(.'1.S N - .013 ESTIMATED PIPE DIAMETER(INCH) - 33.00 tMt.MPER OF PIPES - PIP;.:.rLOW THRU SUBAREA(CFS) -^ 28.94 TRAVEL TIME'(MIN.) = .57 TC(MIN.) - 14.63 �:• •3" •�••3F• # •3c 5i• �?;• �•• •Y• # ds• # •if• •3i•iE fit• •iE• #'.%• de• •1e• 9E •3t it k •Di• # it• df• •1F ar # ie �i• •Yi• •�• ## •if' # # #• dE• 3E # # # is # # •!@ # •):• iE •1i• # #•ii-•tk #• �• •a• #.• •;y �• �+• •3r it �• �• 3E• ii i• �4•?i� FLOW PROCESS r-r-SS FROM NODE. 130.00 TO NODE 130.00 IS CODE = :. ))))) DEt I (':r'tdATE 1 NTJEPENDENT STREAM M FOR CONFLUENCE < ((< ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME 4i•" 1CONCEritil7RA IC:Y &.lNUTES) ... 14.63 RAINFALL INTENSITY (I NCH. ;'4•iOUR) 3.43 TOTAL STREAMS AREA (ACRES) = 11.:34' ]%.]T :L. STREAM RUNOFF(CFS) A, CCiNr•L_UEhEt'..,c -28.94 - •k• •*• �• •it• •� ii •k iF •A ii• •}i• #-lE• •x• # •Di• #• iF •)?• # •i!•7�i• aE• •Dc• 9i•# #• •Yi• �• •3E-•�• �:• •�• •k •Y•3i• •k• •?E•9i• •if• •lk••'�• •K• -tc •L"• iE iF•IF•ir •N• # •�• •is• •ii• •3i• 3i• #•3f• i�• � k• •#• •:� #• # if• �• # #?i• �• �•?+.• :�• +k• •!� PLOW PROCESS FROM NODE 135.20 TO NODE 00.00 is CODE ---------------------------------------------------------------------------------------- ) ;"TI hi.yET-CD INITIAL C;{fiEr fiaNALYSIC C C C { { iCSUrcu 1NI T IT L SUBAREA UNIFORM . DEVELOPMENT = S a SINGLE FAMILY (1/4 ACRE) X*C(LE=',w37-**3) (ELE'JA;!ON CHANGE)!**. VN ;"04 Mi_s1AREA FLOW -LENGTH ' 650.00 UP57REAM ELEVATION = 1218.00 DOWNSTREAM ELEVATION ��1214.00 ELEVATION DI ?-'�^i,-REititCE ••_ 4.00 TC = . 9,, *(( t'a50. Z0**3) / r, 4. 6:0K•3c•*..:.. ._ 14.497 100.00 YEAR RAINFALL !NTENSITY ( INCf•^r';"YO:liR) -- 3.447 SON" CoASSIFICATION IS "A'' I>viiLE•-Y•;- ,a:_t ..%4 qCRE Li77. i-il;VClr-F t.:C:1r;rF,,CIEi\, -- ,..IUB :7:3h:AREA RUNOFF (CFS) = 2.09 TOTAL AREA ; AC1 RL- S) -- .80 TOTAL RUNOFF(CFS) = 2.ZS •.�•.�•.�••x••x•��••�•,�•.�•�.u•�;••tt••;<:#•�••.��.•�••n•a�•#�e•�••iE•#•�•��•ai••��•-�•�•�•ai•.�•.�•�••�••-}i••�•�••x•-i��•x•�••>s•ai••�•�•#�:•a�•�••��•�•-�#->~#•�i••>c•�•#->ta:..�:..>i•a�p••�••x FLOW PROCESS FROM NODE .130. L0 O NODE 130.00 18 CODE �• .. .,) ) i ) D:.S .l GN "i iE. INDEPENDENT SS f .R .{^ M FOR CONFLUE' 3NCE < < ( < ( CONFLUENCE vi-ai..LIEC; USED FOR INDEPENDENT STREAM ;::' ARE: T-L.,mi_ ID •- 14.50 RAINFALL INTENSITY (INCH./HOUR) -- 3.45 TOTAs STREAM AREA (ACRES) = .60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE 8.09 FLOW PROCESS FROM NODE 13Z.4@ TO NOCE 130.00 19 CODE = � >>}>YRA My A� ASSUMED IXZTIAL SUBAREA UNIFORM DEVELOPMEN7 :S: S:NGLE FAMILY (1/4 ACRE) TC = A*[QEN37h**3>/(ELEVATION CHANGE)]**.2 1NITIAL SOBAREA FLOW -LENGTH = 800.00 OpSTREAM ELEVATION = 1218.512, COWNST9EAM EnEVATIO% = 1214.80 ELEVATZCN DIFFERENCE = 3.70 TC = .393*[I 800.00**3)/( 3.70)]**.2 = 16.679 100.00 YEAR RAINFALL INTENSITY(INCH/HGUR) = 3.169 ' SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7508 SUBAREA RUNOFF(CFS) = 1.87 TOTAL AREA<ACRES> = .70 TOTAL RUNOFF(CFS) = 1.67 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 130.0Z IS CODE = 1 })K}DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< }>>>}AND COMPU7E VARIOUS CONFLUENCED STREAM VALUES(<(<( ============================================================================ � CONFLUENCE VnLUES USED FOR INDEPENDENT STREAM 3 ARE: 7*IXE OF CONCENTRATION(MINUTES) = 16.68 RAINFALL ZNTENGITY (INCH./HOUR) = 3.17 TOTAL STREAM AREA {ACRES} = .70 ' 70TAL STREAM RUNOPF(CFS) AT CONFLUENCE = 1.67 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.} (INCH/HOUR) ---------------------------------------------------------------------------- 1 28.94 14.63 3.429 ! 2 2.09 14.50 3.447 3 1.67 16.68 3.168 RAINFALL IN7EWSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUE%CED RUNOFF VALUES ARE AS FOLLOWS: 32.48 32.22 3CA.34 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS. RUNOFI(CFS) = 32.48 TIME(MINUTES) = 14.627 T07AL AREA(ACRES) = 12.80 **************************************************************************** FLOW PROCESS FROM NODE 130.00 TO NODE 131.00 IS CODE = 3 >f>)>COMPUTE PIPEFLOW PIPEFLOW TRAVELTIME THRU SU8AREA(<((( )}}}}USING COMPUTER -ESTIMATED ============================================================================ PIPESIZE (NON -PRESSURE FLOW)<<(<( DEPTH OF FLOW :N 36.0 INCH PIPE IS 28.5 INCHES PIPEFL�W VELOCITY(FEET/SEC.) = 5.4 �PSTRZAM %CDE ELEVATION = 1214.80 �D0W'NSTREAM NODE ELEVATION = 1214.0Q FLOWLENGTH(FEET) = 300.00 MANNINGS N = .Z13 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = � PIPEILOW THRU SUBAREA(CFS) = 82.48 TRAVEL TIME(MIN.) = .92 TC(MIN.) 1S.55 i-:t..iLC_t, t i•it-lNj Nt.I1Jt 101.00 l U NUUS 101.00 16 l OWE ))) }) DE- GNA`•E XNDEPENDENT STREAM FORC.ONFs_ .Si_=:sNCE (< ( < CONFLUENCE Li-_uEN:c VALUES USED FOR ;kD4= ENDSlT STREAM T ( 7•. OF CONCENTRATION(MINUTES) _ 15.55 5 55 . iii: v" ••. m. -f• �`�.! AINF•As-.L. iN T EfNS17Y 4INCH. / iOU•R) .-. 31 CA TOTAL STREAM AREA (ACRES) = 12.80, I07 AL STREAM RUNOFF(CFS) A CONFLUENCE Ni"LULSLI..i: '- 32. 4r•i .X:' :j...k..�.1 �. i .�..�. #-.L. 1''�C �!"�:"!!' •F.' .3!"'{"D`."� ;t'•�"=t"r."�"i\"k"�"�"k"�'�"3!"�":!"� 1.'."i�"%:"�"ii`.#"�":�"L!"3:"�: r. •}. �C •�"�:"�L'k' # �':�"�.�,`.' �.."k"�t"�` .L •k' 7.' :C '�:"i1"%:.,h. �. 7�. X n. PLni PROCESS FROM NODE. 131.10 TO NODE 131.2Z IS CODE ----------------------------------------------------------------------------------- ) )•))) RA i" I ONAL METHOD INITIAL SUBAREA ANALYS I S (< < ( < ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT 18: SINGLE FAMILY (1/4 'ACRE) TC -_ * C (i -EP. G7H*#S) / (ELEVATION CHANGE) J #*. 2 l N I T I AL SUBAREA FLOW --LENGTH = 550.00 UPSTREAM l ELEVATION = 1217.10 DOWNSTREAM ELEVATION = 1215.00 ELEVATION DIFFERENCE = 2.110 TC = .3G *C( 550.00.i*0/( 10)3**.. = i4., 91g 100.00 YEAR RAINFALL !!TENSITY ( INCH/HOUR) = 3.3ES SOIL CLASSIFICATION IS "A'' S I NGL -E• -FAMILY 0 /• 4 ACRE LOT) RUNOFF COEFFICIENT = .7572 ,:iUSAR A RUNOFF (CFS) _ 6.16 TOTAL TAL AREP (ACRES) = 2.40 TOTAL RUNOFF (CFS) = E. '1 S •�••3i•#•AL•'�•#•'3F•#�•#,Y•##•);••k•##•####�4•#9i•#•�••�•##-te'####•#•#: ##i+cit•#it•�• �''-#3i•########ii'##########•k# ##•#•#••ii••:;'�i•#•k• PLOW PROCESS FROM NODE 131.20 TO NODE 131.00 I S CODE = N ------------------------------------------------------------------------------------ ))))) [..0MPU T E. r'IPEPLOW TRPVELT IME THRU SUSAREA < (< ( ( COMPUTER -ESTIMATED PIPESIZE• (NON -PRESSURE FLOW) < (< < ( E2:,'":;:il'.A"r:.D PIPE DIAMETER(INCH) INCREASED TO i6.000 DEPTH O: FLOW _ W a . 4 18.0 INCH t f•• C IS 10.1 INCHES r yr LyY.1 Vrr J1 -r J. S { C> G3" i /SEjw• ) = S.1 UPSTREAM NODE ELEVATION = 1215.00 D%ibv'iVST R =AM NODE ELEVATION - 1214.00 0 F.GVL :MGs(F-- ) - 14 o. GvYf:\y+33 N r013 ESTIMATED PIPE DIAMETER(INCH) 18.00 NUMBER OF PIPES FIP PLOW -" i i'IRU SUBAREA(CFS) FS) '^ 6. 16 TRAVEL TI,1lUMIN..) =• .86 6 i•C (MIN•) - 15.19 •9�•'R•'1?'•3E•}i••)i•A`•k'•#•74'•J�• n •� •�=•k �r##•3E•fi•#ik3i•')E'7i'•}i••3:•3',•#'iF9:••3Eic•s.•$£•'Of•#'iE'JS•"J`.•'sk••A••k'"�e•'it'•3t'••ie"if••De••IF•'Jh-•k•'i(••se•'fi•iF�•�i••!rdc 3:•#•a:•'� •iii#� $:'k'•P�•'fr#'Dc3t•'3F•�*,' FLOW -RCJCc;:>>.; FROM FVaDw 131.00 ;t.1 itiOJE 131.00 IS CODE = S ))) }) DES I G NATE I ND5PENDENT STREAM FOR CONFLUENCE < < < ( ( ?)>>) AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < < < ( < CONFLUENCE VALUES USED FOR INDEPENDENT STREAK'! E ARE: :C ME "f CON EhiT RrAT I aEV (M .: hlU-CE5) - 15. 19 RAINFALL 'INTENSITY (INCH./HOUR) 3.35 TOTAL STi:;`c:AM AREA (:=ACRES) = 2.4u1 TOTAL STREAM RUNOFF(CFS) A•T• CONFLUENCE -- 6.16 CONFLUENCE !r NCE INFA `RMATION: {STREA;Y? RUNOFF TIME 1N'll*E:iVaITY iti L��f: B;'.RyC, F S) (MIN. ) (.L,:-„ ,1:,r ------------------------------------------------------------------------------------------ .L 32. '4i•8 15-55 3. 305 fCr.A I N t• IL INTENSITY AND _.TME O C.C. NCGN7;CA i ION :RA71 0 VM-iil'.M1LjS. S 'Ci.•1N L_L:E vCED RUNOFF VALUES ARE. AS ='L;Li.._OWS Z21. 55 -:,,7. 69 c' r� t� �..t.. M U �'+.: CONFLUENCE D CON ESTIMATES ARE AS OL.C_OWS rRUKOF'F (C:;F81 = 38.35 TIME(MINUTES) 13.55i TOTAL AREACACRES) = 15.20 •Yi..�.•k•ie•ii•ie••}i••�i•#3i•'♦c#i••k••3':-•k••tF••K-•3i•ie•R••A•ii•iF�••�••k••i;•iF••li••it•if••'iris•#it•#•�••�#•>Yr•i:••t,•ii••i<••'��#••iFttie••ir••1.•'i-•�•i;'i••�. ##:•9!•ii••ti-ii •�#•'•3:��t 3�i�•i'.•i�;••r.' ;: i� •i FLOW PROL.,.^-«^..ti PRGild NODE 132.00 0 NODE ----------------------------------------------------------------------------- 132.0Z IS CODE 3 ) >))) COMP] , E P I PE_F=LOW T ^.A VELTIME `+. !-iRj ::,,.i%tAREA (< < < < > > > > > UaING COMPUTER -ESTIMATED F=rIPESIZE NON -PRESSURE FLOW) < < < < ( DE ° H OF ,Luny IN 30.0 0 l CH PIPE IS 24.1 INCHES :_'IPEF-•LOW VELOCIT•Y(F=EET/s:-_C.) = 9-t UPSTREAM NODE ELEVATION = 1214.00 00 DOWNSTREAM STREAM NODE ELEVATION`- 1G.Y.6. 00 F= LONL ENG T i &EET) = 620.00 MANN I NGS N = .013 ESTIMATED PIPE l DIAMETE�'( INCH) _.. 30.00 NUMB 'R (IF PIPES = �. r`'IPE.FLOW , HRU SUPAREA :Cr'S) -' 38.55 TRAVEL TIME (MIN.) = 1.16 TC; (MIN.) = 16.6b it # fi:• :+.• ;x. it # �: •? # # x •#..�..y.,t. fi:• }. •#• # # •#• # # # #• ib fit• •#• fis• # # •1t # if• is• •li• # i:• # # fif• ie• fi°• •#• fii• fii• fib # # •� is• fit # #fit # #• #• •�• fit # •ii• # 9: •'s'• is• y # �' is• fi:x,r; •r!• >ti FLOW PROCESS FROM NODE 132.00 0 TO NODE 132.00 l O CODE ) >))) DESIGNATE INDEPENDENT STREAM FOR t,C11UF i_[lE't�1CF , t C C C COEV^'LUEi%lCE VALUE.';: USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) - 16.68 8 RAINFALL INTENSITY (INCH./HOUR) - 3.17 TOT Ai {S7REr'-M AREA QCRES) =• 10. TOTAL r ,.. a' : E -,iw RUNOFF(CFS) AT CC.IiVFL'sJcNCr. 38.55 $i• •;:• •?'• i:• ri• ?t o'?• #:• •3;• fie• ,i• 3i• fis• :Y- # o\• •}• #:• yF fis• 3t •�• •Yi• #.• # fi;• #P.• fit fit # it # •it •itis• 3t :§•fit fit #fir fi:• i" 3: is• fi;• i4• fit # •IP # #• iP # it #• fii• # �:• •is• # # # fi° •H• •3t• pS• ;i• it ii• if fi:• # ii :;i. FLOW PROCESS FROM NODE 140.60 TO NODE 132.00 0 i s CODE: = 2 ----------------------------------------------------------------------------- ♦ > t Rt: f .tLJN L METHOD INITIAL SUBAREA ANALYSIS < < < < < ASSUMED INITIAL SUIAREA L'NiF�JrRM T DEVELOPMENT is: L7IN3LE FAMILY (1/4 ACRE) TC `^ K'+ C (LUNG F••**3) / (E:.L VAz ION C; ANGE) I**. 2 .I: r• I T 11= L SUBAREA REA " LOW -'•LENGTH `- 150000 UPETRE- M ELEVATION ELEVATION-- ;i�::�, r. ��Zry��Z:00 DOWNSTREAM ELEVATION DIFFERENCE 9.0121t TC = . u9. •' E ( 15Z . vr1~f•31••Y.3) / ( 9. 00) ;)9t#. 2 = 20.359 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUF) = 2.812 SOIL CLASSIFICATION IS "A" S I NGf_.E-e" AM I L Y ( 1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7361 SUBAREA RUNOFF(CFS) -• 3.74 TOTAL AREA(ACRES) = i. so TOTAL RUNOFF(CFS) - 3.74 34• # # •�• it k #i fit fii• �• is• #fit is• if• ii• �!. # ;u..p. is• fit # } `:i -0: ik• i+,• fi%• fit it fit• # 3:• •k• # 3t # i:i� i5 # •'• •k• fiF si• # fii• # •:; it # •Yc x fit •�. # is #fit •#• fio fi; •tF ds• •t• fic •k• .;q. •�• yt ri # is• •r• •k..�. FLOW PROCESS FROM DIODE 132.00 TO NODE .L •r _ V 1 _ � �� J. � CODE iJ CO�`t y. ,i• r ; 13.%L.S.t C7NA: E oNL/Ei'"1.:1411E.i'+ r STREAM R__Ai'r` F=OR CO;V"rL.i.icNCE < < < < C CONFLUENCE VALUES USED FOR 1NLC=ENEN STREAM _ ARE: _.-,-.._...._ _..._.__ TIME OF CONCENTRATION(MINUTES) 20.36 RAINFALL INTENSITY (INCH./HOUR) -- ;_.61 , ._ , !'i t.. v i lti ::,-, :'i 3'{fY_f l °. 1•'i'v;iC:7i .••. � ... 1:.);�T .. - .. - •. TOTAL S : rt. -_},t•, RUs•.0F= i,.., ,... AT CONFLUENCE •_ 3.74 �:..� }�•.�• •,><•,• i- •�• •�• •ri•.1:- •k• ib •?:• 3c 3: •Yi• •EE• i?• ii• ii..�. #: •k: •14 3?• ri• iF •'vs• yi. •�• �. #5 .}. };• .}• aa• # •tir.'• •!E• •ki •a• •Y ii # #:• } •t!• .�• �;•,�• y; A. •;* .�;• •� �'i• •�;• •k• •}• iF w• ii• •DE #' �i• :4• %i•,`s r: �• # r`'i �• si. ;: LOW PROCESS FROM NODE 132.10 TO NODE 132.30 I2 .3JE -- C_ ---------------------------------------------------------------------------- ). , ))RATIONAL METHOD INITIAL SUBAREA j"`Ilt7ALYSIa<<<(< ^....:�...»....�__...._....__.-_._:..^._-.._....._-�---�.�-.____r__... ter_•:...=c �.--.c:. _.._��.a._._.:...__._-c.-.-__,_,__._...:...._...,..c..-..�.-a_..- _^__.,..� ASSUMED INITIAL SUBAREA UNIFORM TC DEVELL:I-`MEN T IS: SINGLE FAMILY ; i/4 ACRE) TL !# L (LE3'�a,',•{•iF,'R•,;;,) /(ELEVATION ATION CHANG ) .l7:*.'2 INITIAL SUBAREA FLOW -LENGTH = 520.00 UPSTREAM GA i..t_.'�rA- (1);.''t.i�y= 12 _�••�l . �c,! DOWNSTREA ELEVATION DIFFERENCE = 7.60 TC ^• .393MCC 5,-_`G. f�l09i•*w) / . 7. 60) .3i **. 2 ••_• 11.153 100.00 YEAR RAINFALL IhlTENSITY(INCH-s'/HDUR) = 4.034. SOIL CLASSIFICATION IS "A'' :.i i, _iLC-3"1 "`i .{LY (.i./Ei- r•C:CE 'v) RUNOFF COEFFICIENT •- .7720 J!.)a^.iYiRt:A RtGI'4tf�':-.RUNOFF(CFS)= 14.64TOTAL AREA(ACRES) = 4.70 TOTAL RUNOFF(CFS) (CFS) 1.4.64 •Y:• 3• •!^ � ?:• •la• •fi• iF +•-i'.• ^ii dr dt• •}• 9F- ii• 3` d:'• •#• #• �'e-Y• •k• i6 iE iE• �i• •IE �• -Y• iF• •1c •!i•'i.• # }• #• it• •)£• •ii• •15 •iF• # T• •it• #• # i{• •Di• •1>• �f• it• # d:'• if• •i* •�•i� + •1i• di• •k• �:•!: fi• $r 3i• •Fi• �!• # a:-. ii• i:' •::•r:• •a• FLOW PROCESS `ROM NODE 132.30 70 NODE 132.40 IS CODE ----------------------------------------------------------------------------- ., ) , COMr- U : e PIPEFLOW ! RA JEL'i I h'IE THRU :'iUitAREA i < < (( )))>TUSING COMPUTER -ESTIMATED PIF'ESIZE (NON --PRESSURE FLOW) (((< < DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.5 INCHES h= ` PE FL'A'W VE.LOCIT Y (FEET/:.`FSC.) = 5.6 UPSTREAM CODE ELEVATION = 1209.50 D;_34`rlLSTREriM NODE ELEVATION = 1209.00 FIOWLENOTH (F EE i) = i okt. o o MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES - 1 P 17DIE- ='LOW ;'HRL' Si.fBAF1EA (C"'S) = 14.64 .- RAVEL. "! IME(MIN.) .30 T'C(MIN.) 11.40 a...?; ?4• •Ar .k. •1i• ,�• •a�. y:. #: d: -}. #: db #• 44• de• •�i •�• df •i- � •k:• aF -�4• ••r'• T• •� ii• fi'c it 3F •H• •Yb •!� i?-•lf #:• •DE• fi• # iF •�• #- •D• •i<:• •'ti• •3e•,i�• ii• #: # •N• •Fi• •k•?ti• •#• -1i• ii•.?t• #??• #• •b:• •k• •>`•'x•'.f• •s?• 3�• •N• � F �!:r. •e F.-OW t•'tiOC ZS FR'..iN NODE i32.Lz To NODE 122.40 IS CODE a ------------------------------------------------------------------------------------------- i r rsDL o + a 0t OF 5i i-,1'C...ri TO MAINLINE PEAK Fi-.vW< < < < 100.00 YEAR RAINFALL ! NTENS ITY (I NCH/ HOUR) -. 3. 972 E01L CLASSIFICATION IS "A'' ZNi.v,-l;....r Y- ,•! 1 , ( 1 / r ACRE LOT) RUNOFF COEFFICIENT -- .770L SUBAREA AR A (!=!(_.i•:ES) - 3.30 SUBAREA C(UNO ' (CFS) =• 10.110 TOTAL 1 FiF<Er•I (A^t-...,i -^ 8.00 TOTAL s AL RUNt.lFF (i..:t' 24. T&MIN) IN) -• 11.45 i:• •!¢• �i• i;• #•�2 � •� �:• •Ii• a* if• 9f• sf• •li•+• •Yc � :i• � # #• 3F •�• •�• •3i• ie• •�: •�:• •k: •3F• 3i• •ii••�i• # •ii• �• •� # •x• :r •k• 3i• *. •r -1r � •k• #• � � �! •t�• �• •�• * �• •!�• •x• •� #•?: •le• •;�•.�•;�•.�. •�:• �•..�. ae• .�• r.:�- ri•-� FLOW PROCESS FROM M NODE 132.40 TC NODE 132.00 13 COD!_ = ----------------------------------------------------------------------------- )) 1 .) C_:UMPU C PTPEPLOW ; :^VELTIME 'y HRR SUB REA < < < < < i ))))) USIi` O Ca:.i:*, =U'i ER ?'.iMA7E'D PIPESIZE (NON--PRESSUR Y LOW) (< < < ( ::lEP'fA OF FLOW v wN 27.0 0 INC'fi PIPE IS 18.6 INCHES _ _._.... ...___ PIPEFLOW „w! Cr-.ITY (FEE ;'/SEC . ) = B.5 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE. ELEVATION = 1208.00 F•Li OLE NGTH (r= EET) = i ooh o ' ;rANN I N S N _ .1 ESTIMATED t-'.lPr_ LSF){: C` i G:Z (I VISI ii •••• 27.00 NUMBER OF PIPES PIPEFLOW THRU t /• REACCFS) 24.74 `^uAIVQ. `1 Vm`x.X.,,= .ae ,n_wn, = Mts, , ` '. c_IN PROZESE FRJY K]DE 132.00 70 NODE :32.co IS CODE = � ---------------------------------------------------------------------------- )TA}QZS13NP7E INDEPENDENT STREAM FOR CO%FLUENCE<<<(< )>0}AKD COM-`= VARIOUS CONFLUENCED 97REAM VALUES((((( CJNFLUE%CE VALUES USED FOR !NDEPENDEN7 STREAM 3 ARE; _IVE OF =NCENTRATION(MINUTES) = 11.65 RAINFALL lN7ENSITY /HJUR) = 3.9:3 TOTAL STREAM AREA (ACRES) = 8.0� 70TAL STREAM RUNOFF(CFS) AT CONFLUENCE = 24.74 CONFLUENCE !NFORMATION: S__RE;__"M 'UN, r, 7.11 ME ZNTENSITY NUMBER ____________________________________________________________________________ (CFS} (MIN.) (INCH/HOUR) I 38.5S 16.68 3.189 2 3.74 2Z.36 2.8112 3 24.7 /, 11.65 3.931 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FCRM2LA(S;C) USED FOR 3 STREAMS. VARIOUS CO%FLUENCED RUNOFF VALUES ARE AS FOLLOWS: 61.56 55.64 53.79 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 61.56 TIME(MINUTES) = 16.682 707AL AREA(ACRES) = 25.00 FLOW PROCESS FROM NODE 132.00 TO NODE 140.00 IS CODE 3 }}>>}COMPUTE PIPEFLOW TRAVELTIME THRU,SUBAREA<(<<< >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(((( DEPTH OF FLOW IN 36.0 INCH PIPE IS 25.3 1NCHES PIPEFL3W VELOCITY(FEET/GEC.) = 11.6 UpSTREAM NODE ELEVATION = 1208.00 DOWNSTREAM NODE ELEVATION = 1206.169 FLOWLEN07H(FEET) = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 61.56 TRAVEL TIME(MIN.) = .22 TC(MIN.) = 16.90 **************************************************************************** FL04 PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 }}}}>DESI3KATE INDEPENDENT STREAM FOR CONFLUENCE<((<( }>}>>AND COMPUTE VARIOUS CONFLUMED STREAM VALUES(<(({ ============================================================================ CONFLUENCE VALUES USED FOR 1NDEPENDEHT STREAM I ARE: TIME OF CONCENTRATION<MINUTES) = 18.90 RAINFALL INTENSITY (INCH./HOUR) = 3.14 TOTAL STREAM AREA (ACRES) = 25.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 61,56 . CONFLUENCE INFORMA7ION: STREAM RUNOFF TIME INTENSITY NUMBER ___________________________________________________________________________ (CFS) (MIN.) (INCH/HOUR) 1 61.56 16.90 3.144 0�-- r-4..L 1 Y r,;' jd I .:4i:= Ur IN,; iUN i Lf !='CRMU—ACSBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS-. 61.5E COM017ED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 61.56 TIME4MINUTES) 16.890, TWAL ARrA(ACRES) 25.017. END ZF R9710NAL ,rte ren ANALYSIS a aA. ..._ .,-1;,- METHOD . HYDROLOGY COMPOTERIO,....a" r BASED ON BAN F^'ERN ARDIlit O COUNTY {x BC) ' 1gea_ HY:1f�',r._EL"wJGY fy?PNUAL .,t a tt ,:. {{< ,fit, a<i l:: f)f: )ifif! f ff!.•IT. if}�. i...%. .-:'r':'t%Is'C ^?i_fVN1fa=-F?C3 Engineering Software _!-3i_S3 Especially _`r or'Lmared ;:'rte. HALL & FOREMAN, INC. O ,�'•'r,•;;.;;.fi••ar•k•iF•)f*D`.�SC•:1: eTIO ;. � stiff f.) , , ,'.=:v ��r. i J k if iF •It• •vr ai• 3r it• •k •}• .k• , : �:• # �• •�• •k• -if .�..�. }• .�..�..k.:n.,�..k..k..�. �..y�..y..j�..}i..s� •�'• r• •ft -ii' .K. #.:F..�;..t * FOOTHILL. DRAIN HYDROLOGY. LINE E -f LATERAL L ?: r.• v 25 YR, BODE 130.1 TO !',NUDE 14:1 ;. 'f'•' `1. K / a_ . itis • N 3834-0 20. 11/23/1968 •�i• # 4E -Yi• i4 •?r •is• •1i• fi• # di •lr i:• •k• #,• # •v � i4• deli• r• •Jr •!• •.`:• :'F-•itii •#• # #• �• •1E• •is• •M• •!t• # # # de- # ii• -}• df• # -k• di• •lE �• �i• •ii• �• #• it• di• •A• dt• •li• # •Yi• •,<• #• 3e• # •3e• df• •H• •3i• 9t• it• •ii• •)i• # k• # •'<:• _ USE? SPECIF ED HYDROLOGY` AND HYDRAULIC ;MODEL INFORMATION: . ------------------------------------------- ._SER SPECIFIED STORM EVEN (YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) .._. 18.00 S'-`iCI _ED PERCENT OF GRADIENTS(DLCIMAL) TO USE FOR FRICTION SLOPE .95 10•—YC-AR 37ORM 60 -MINUTE IN ['Ei4tsw I T Y { INCH/HOUR) — .980 f !OZ—YEAR STORM 60—;MINUTE !NTENSITY<::NtCH/r-fOUR) — 1.470 COMPUTED i',rsINr-A,.._t_ INTENSITY DATA: EVEN".` -•• 25.00 1 --HOUR XTE'NSiTY(INCH/14OUR) = 1.1520 SLOPE CP INTENSITY 1JLfRAI'ION CURVE = .6000 BBC HYDrSi7i.iiGY itit•'1:k1».:Y'L "C --VALUES USED T i f { �' / i� ! � { ! !( t 5 1 t \ t, t \ 1, t\\ t t, 1 t t t 1 t t t t t\ 5,\ •� t t Advanced Engineering Software EA=„/ -.~?2 SERIAL No. A0 580A REV. 3.i RELEASE DATE: 5/01/85 df•di•tiids'•#•*••k•di•di•�•di•#tii•3i•ii•f••k•#•�•d;•dt•'�•di •'•?:•ir•� �•rt•#3k•#?%•df•dr##ii••#•if••ii••k#dF•9Edi••'�•di••li•#•di•df••k•aEiE#•!i•�':••Didi••�•#••lt•dhi:•df••li a'.••k• k••Pc•li•#•-Ir•l5•f FLOW PROCESS Fr,ON NODE 130.10 t O NODE 130.10 Ia CODE = 2 ))) } } RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < < < �i ASfU(*:Er) INITIAL SUBAREA MUNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 (ACRE) TC = K*r (:'_'E=NG-'•H*•>:3) / (ELEVATION CHANGE) ado*. w Z N I', Z AL SUBAREA '-= L.OW-,..LE}•,G7H = 780.E 0:11.) • DOWNSTREAM REAM EL,w"_VATIO,N = 1216. 00 TC = . 39 3* 780. y_?V'_i**3) / ( 19. 50) 2**. 2 __ i 1. 761 25.00 YEAR RAINFALL Ii\s;"SNSITY(INC,H/HOUR) •= 3.059 `.-OIL CLASSIFICATION 18 13A!3 «:ilNS"E—FAMILY41/ 4 f•;Ch:'+:.= LOT) r2``#y��.itiO F CLsf:.i=FICIEN? = .7478 SUBAREA RUNOFF(CFS) = 8. �G:0 ,. rr-,»r r,: n -.. .-. i nr: r.,-•rw a _ — r.-•. r-:-.•';. ..: ,.. .3-.._..- ..-: -r. � .s.^.. L• c r"; r;: N:_r•. % r•i t, S1 W.,..` 1 -• .:j. ::+G1 I W . tom,_ ! •- Gl. Y1'L. ?¢• •iti •R• •�• # i+'• #• Y: •;i• # •k� tih •)•: ':. �. t• •N• •k it• •1r •i�• # #• i• �: i^ •::• •i• # •if •it •�� # •#• •D• •k• ii� •r• •k• •ie• •if• •ii• 3i• #• •it• 3i• # -�• •k• it• ;r •�:• .� i?•'r.• �•r} +• # •�• •k• •9F •A• is• �'e• �A: #: # �• #' •ii• �:• 3i• # •k• s• FLOW PROCESS FROM NODE 130.10 TO NODE 130.10 .n CODE ----------------------------------------------------- i i i i - E--3viE INDEPENDENT r RA`FOR CNr _U: -w < < < 1 < CO - 'CE It E:? SZL_ POR r: F -'E ``i i] ' k 7:M2 OF CONCENTRATIONTMINUTES) 11.76 ."`RINf"AL. INTENSITY (INCH./HOUR) "' 3.06 TOTAL STREAM AREA CACRES) = 3.50 v i t••I L STREAM RUNOFF(CFS) 1'-1 , CONFLUENCE LUENLE 8, 00 fi• •ii• # �: •ti•'r a-;�• •)c• •3i• �• # Ni• ii• k• -�• 3i• a: •k• �:• •fi• # # # h• r •3a• # ii• �?. •ii• # •lt• •ii• ## 3i• �•'ii• # # •k•b(•# # •la # ii-# •& �r # if` •k• •Y• 3� iF �• 3f• #•!Edi• # #• 3i• #• •li• •le• iE• �• # •if •i>•?; #• d: FLOW PROCESS FRCiM NODE 13620 TO NODE 130.10 IS CODE = 2 ----------------------------------------------------------------------------- ))))) RATIONAL METHOD INITIAL SUBAREA ANALYSIS f < (< < ASSUMED INITIAL_ SUBAREA UNIFORM DEVELOPMENT I S : SINGLE FAMILY (1/4 ACRE) TC - K' C (LENGTHai'di•S) / (ELEVAT IG•N CHANGE) ? **. I N I 1 AI.... SUBAREA FLOW -LENGTH Tr. _: 750.00 CS ..'_ ELEVATION L�.r �: •:l_�•i?� L;:E JNTICJr;; - 1221.00 DOWNSTREAM SLEVATION = 1216.00 ELEVRTION DIFFERENCE = 5.0121 7C = . , i Jw# C ( 750. 0t['!#•ii•._r) / ( J. 0F(_i) J di•#. 2 -. 15.108 25.00 YEAR RAINFALL !NTL`NSI T Y ( INCH/HOUR) - 2.635 SO= CLASSIFICATION IS "All S I NGLE_ Fr'ill's I L1'' (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7307 SUBAREA RUNOFF (CFS) 3.08 TOTAL- AREA (ACRES) = 1.60 TOTAL RUNOFF (CFS) 3.08 #•dF •i: # # di• dE # # # d4� �• •kr• �"• # •fF :!• # di' # di• di• dE •k• dr iF # di• di• •ii• # dE dE •iE di• dE # di• di•# di• # # dE •K• di• dE di• dE #• # dE i• dE # •Ai• •�`• # # dE di• # di• #• �:� A• # •'si• •i�: fie• ;�• di•;i• i�: ii� di' FLOW PROCESS FROM NODE 110.10 TO NODE 130K 1S CODE '- 1 l i 1) J DES IGh`ai-`TE INDEPENDENT STREAM FOR C:ONFLUt=NC:E ((< < < ) ) ) ) ) AND COMPUTE VARIOUS 1.rONFLUENC Feil S7R.^_AM V ALU.'.'. J ( ( < ( ( CONFLUENCE VALUES USED FOR mr+.(DEf ._1'41)ENi STREAMq ` ARE; ..;�,•_ . CON `ai•*R T` N(MINUTE_S) 15. 11 RAINFALL I NTE.=.NS I T Y (INCH./HOUR) _ 2.6-4 µ_:::NAL STREAM AREA (ACRES) = 1.60 TOTAL STREAM RUNOFF ?CFS) AT CONFLUENCE - 3.06 GGKPLUENCEI NR•ORMAT I ON c {{ RUNOFF NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 3. 0591 3.00 11.78 L J'. 4:8 1.5. 11 2.635 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIC: '-Lit t' ULl-1 l S.r" 0 USED FOR 2 STREAMS. VARIOUS CONFL;. ENCED RUNOFF VALUES ARE AS FOLLOWS: 10.40 9.97 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: ,UINOF. (CFS) ... 10.40 TIME'&INUTES) = ii.781 dr d£• dE •}: di• :'E •Di' •'�• 3�• if• x• •"r'•i:• de di• da• # •;i• df• di• # •Y• dE # �' # •a• •�:• # di• dt• •k• d•` # # •?E dE ai• # # di• #=if �fi •i dr •:;• do di• dE di• # dE di• # iF'ii' dr•3f' di• # # di� #. di• } •#• L• iE •�•-Y:• dt• �• •$• dt• d: FLOW hC.LESS FROM NODE 130.10 TO NODE 130.50 0.c% prCODE '-' 3 v I•TI\i.uU.� u�.:l v: 6..vLl�'vI--SJ lc...!lv:J; - YH:.. L.3 C..."?, hi 1'C :. 1'-:A i'W:_i.. CS YYv: COMPUTED G_J'vrLvEN;rE ESTIMATES i-•rr,E AS FOLLOWS: ,. ..,.:'NOFF(:..-S) = 21.97 ':;ME MINUTES) - 14.056 TOTAL AREACACRES) = 11.30, #• y: •1b •36'F• d?• •}i• •F• •.�.' # •k• # •�} p• x e!• # 3• ?P •!i• k• 9t"A" •#• x• -l:• �• # ;c # i:• #-lf• # # •le' # 9c #: •1•� ik';• # #: # iF• -1¢• # •iE• •k• �'- •lf• �#' # #: •k• dE •it •ir # # •i;• #r.'' ?4• # fi• f; 'fi• ii• # •}:• # �` x• •w .- _isE.y PROCESS R;.3: , NODE 130.50 T U NODE 130.00 16 CiJ;JE ---------------------------------------------------------------------------- )))) )':_:'_''•MPU S•_ -'IPE;^Lc'-'.,w TRAVEL TIME ' HRU SUL{tAREA (< < ( ( CS.:•M'-rW 1 R - .ST.i.it0 i'. -:D PIPESIZE <14'LO.iSi'"PRESSSURE PL{. W) ( < ( ( < DEPTH ;.:)E FL. iW; ;N 30.0 i NCH PIPE PE I S 22.9 J INCHES P I PEFLOW VELOC I TY ( FEE i /SE=C.) = 5.5 UPSTREAM REAM i4QDE ELEVATION = 1215.50 DOWNSTREAM NODS. ELEVATION - 1214.80 ._i �4+)E_.E Ns'.rt"TH (F;_ E T) = 200.00 MANN I NGS N M .013 ECTIEMIATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = ? PIPEF LOW .THRU SUBAREA(CFS) - 21.97 TRAVEL. TIiME(ESEIN.) = .61 ;•'C(EM#IN.) = 14.E7 ie• is i:'i• •k••'.c •Y:• •k•'Ji• # •<C••:;• # •�•?; •%-�• # # •1r •it• •3:•?i• •!E• •3i• #�f• # # # ##dF ## ## # # # # # # # # •ii• # # # # # # di• # # •iE •k• # # •'�• iF� •1► •i4• •ii• # # # •iF # ii• # 3:• •3c :�• # •`• FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE = 1 )))))DESIGNATE INDEPENDENT `ENDENT STREAM FOR CONF._UENCE < < < ( ( CQE'.;=L ;ENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE; :..: ,E GF CONi.:;;EN l E'[i i 1ON (MINUTES) _ 14.67 RAINFALL L INTENSITY (INCH./HOUR) _ 2.68 TOTAL STREAM AREA (ACRES) = 11.30 �^h� TOTAL i AL. i REAM: RUNOFF(CFS) AT CONFLUENCE _ 21.97 it• # it # •�;• # �:' •�• # ii• ii• •1i• # •3i• •7i"It •7�• •K• •ii• •3e• iF # •k• •lt' fit'• •1F •►• ?' �f• •iE rE' •le• # •1t'' fie;e• ii• # iF' 3i• •iF fit'• •)F # # •i!'•Dr'ii' # ie• •Yt'• •1�' it• # •Y: �!• •le•?�: •1[' # iE• if• •T• iS• ii• •A• �F it• �+:• it .f• •}i• •s:. �. •1f. x;. FLOW PROCESS FROM NODE 135.20 TO NODE 130.00 IS CODE = S ----------------------------------------------------------------------------- )) ')) RAT 11.. NAS METHOD INITIAL SUBAREA ANALYSIS < < < ( ( {;'�'vSUMED INITIAL SUBAREA UNIFORM _• .__._.._._ DEVELOPMENT L4irlt*i;_.Ns' 188 SINGLE FAMILY 11/4 ACRE) TC = i- * C (LENGTH**3) / (ELEVATION CHANGE) 3*#. c _ NITIAL SUBAREA FLOW --LENGTH = 650.02) UPSTREAM ELEVATION == i2Q.00 DOWNSTREAM ELEVATION = 1214.00 ELEVATION DIFFERENCE = 4.00 0 C = . ,-i'.-J3* i ( RAINFALL50.•`i�.)ti7•ii•••7k3) / ( 4. Y10) 3 •1�*. 2 = 14.497 1: 5. 00 YEAR RAINFALL INTEENSIT ( T l iNt_H/HOUR) = 2.70! SO:.CLASSIFICATION I5 "A" ::'"NS;Ew_E-'FAEM ILY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7336 SLE:ii•sREA RUNG F (,CF S) = 1.59 TOTAL AREA (ACRES) = .80 TOTAL RUNOFF (CFS) = i.59 # -k• # •k-A•-3?� •1E •li• •9f• •li• �¢• s• ?i• �i•is• •D:• •)s• # ?E •ie• •�E• •F:• it # •i'•r'• # •ii• •k• #• #• •k �f• •k• •H• •le• ii• •>E• •)F• de• •k• # •lf• # •ii• # is •R• ii• •ii• ii• 9I• # iQ• # •li• # # •i� �s• •D• # •Di• •�:• •i:• •�i• :`.• �i• •h.= ii• •H• # #• •iF• �• •k• FLOW PROCESS FROM NODE 130.00 TO NODE 130.00 IS CODE - i )) )')) DES lGNATE INDEPENDENT STREAM FOR CONFLUENCE < ((< ( t_•LJ. Si. LrlEi`<i.,_ Ja:3LvcS USED FOR I1'dDEr'c:E\EDiE4T ;JTP,tAEM1 2 ARE; TIME OF :Ctiprr.R-rIsN(`INUTES) �- . 14.512, RAINFALL INTENSITY (INCH./HOUR) S. 70 70TAL STREAM AREA (ACRES) = .80 TOTAL STREAM RUNOFF(CFS) AT C.;CIs'v;'=LUENC`. = 1.59 +; #• +i• •R• •�• ii• # # ii•+t• fir •r• •i?• •ii• •Y'• a:• # •�• •Yb tii is •it• +i• •}S •!'• yi• #• •!f• # 3E +�• t •ti- •y 9:• # •k• # #• # •A• it• dt•• #-k• #•+¢#• •�• }'• +i• •Dt- •?t• t• #• •k..�. +:•;i•+4• •#• •H•+E •y #• # •i•+:• •3(• #• •)?• •;c ,c• #• ,�;. �: -L=VPROCESS "OiNODE i 30^NODE %LLis CODE - ---------------------------------------------------------------------------- ... .{r`.l': IC!!\AL ME`II^lOD INITIAL r,UBA#?i:.A ANALYSIS <((<< ASSUMED INITIAL SUBAREA UNIFORM DEbr=.L_'DiT'=:.5\`•I3 !S: :.TINGLE FAMILY l/4 ACRE) TC __. K _ (i_E;itG H•li*3 )/ (ELi'^VA I EIV CHANSE) J **. i-_ lNT ...AL. Sl..IX:t(-tREA !-��L:.1Y�i-=LEi\i�' �;H = �'��r�0. 30 UPSTREAM DCWN87REAM ELEVATION = 1214.80 ELEVATION DIFFERENCE = 3.00 C = , w93#• C ( L/ : 3. /%0)1'x'•*. 2 = 16.679 25. 00 YEAR ttRAINFAL i_I-� INTLi�lr"l..�I•i Y (>i�il. H/HDUR) = 2.483 4,. SOIL CYi SS 1 i i i.}•:•� ON I S "All S INGLE-•FAMILY ('1/4 ACRE LLAT) RUNOFF COEFFICIENT = .7234 SUBAREA RUNOFF(CFS) -- 1.26 TOTAL AREA(ACRES) = .70 TOTAL RUNOFF (CFC) = 1.2E) #•>:#:••'r.=#•T'••�i••�••k•#•ii••Y:••F••3f••Ss•#:#••D6•k•iE•ie•#if••)e•#•�•##•ii••ii••k••'r'•A••Is•ii••k••k•Y•+i••if••iE•+i••!t••ii•#•id••ls•di••)t•M••lf•-k•##•3f••IF••li•ji••!S•ii•##•3i # hi••k•##•#,`E+i•##•k•+; •3f FLOW PROCESS FROM NODE 130.00 To NODE 130.00 IS CODE -- z �)) )) DESIGNA7E INDEPENDENT STREAM FOR CONFLUENCE (< (< < )>)>) AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < (< < ( =sNPLUE;y`.. E VALUES USED FOR 1NDEPENDENT STREAM 3 ARE: TINE OF CONCENTRATION(MINUTES) - 16.68 s;r'- INSALL INTENSITY (INCH./HOUR) - 2.48 TG' T tiL S7REAM AREA (RCnE...+) -- .70 TOTAL. STREAM RUNOFF(CPS) AT CONFLUENCE - 1.26 j ' CONFLUENCE INFORMATION: STREAM M RUT\ OFF TIME INTENSITY NU."!BER (CFS) 011N. ) (INCH/HOUR) .J i • i:f'J i6.68 2,483 i"4A I .\iF'-ii__._ INTENSITY AND TIME OF CONCENTRATION RATIO rORM; ULA ( SSC) USED FOR 1 STREAMS, VARIOUS LOOS C ONF LUENCED RUNOFF 'VALUES ARE AS FOLLOWS-. 24.65 24.39 2;3.05 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS; RJ!''ii1Fl= (C;FS) = 24. E5 TIME(MINUTES) 14.665 TOTAL A AEA KCRES) = 12.80 +!• # •Ys• +i• #••Yr •ii• # •k• # •+E •!s• i:•+i• •3r # +E #• •k• ##+i• •3E #• #• •ii• +t• #• •Di• iE #•+E +E +f• # •)i• # •!:• •1f• •ti•+E +E #• # # •!i•+t• # #•+i• •iE dt• #• •#• •k• +E #+E 3c # # •iE #+E # ii• +E+E #• •A- Jk••Dt• df• •fir +E •!• FLOW PROCESS FROM NODE 00.00 0 TCI NODE 1:31.00 IS CODE _ ---------------------------------------------------------------- ) ? > )) C.:OM TE PIPEFLOW T RAVELTIME T HRU SUBAREA < < (< ( COMPUTER -ESTIMATED P Pz,;.S I ZE. (NON -PRESSURE FLOW) ((< < < DEPTH' Ur FLOW IN 3.2.0 INCH PIPE IS 25.1 INCHES Y- 1t -.t.. L1.J t+r GL:Ca Y (rGElJ"C.) - 5.i UPSTREAM NODE ELEVATION =52I&SO DOWNSTREAM NODE ELEVATION = 1214.00 FLOWLENGTH(FEET) ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES _ 1 PI.r;EF Ll: W THRU SUBAREA (CFS) = 24.65 TRA'Vi=L. TIME(MIN.) = .98 ••i C (MIN.) = 1S.65 m w w w v w 2 v v w. w w v v m v w w. w w . v v.r v,: v u L y v „ u -..%� ...•v.•. • -� " 7"04 PROCESS FROM NODE 131.00 TO NODE 131.00 IS CODE = � / __________-_---________-_________________-___-______________________-_______ ' >3)!>DES:8NA7E !NDEPENDEN7 STREAM FOR COHFLUENCE<<<<< ============================================================================ / CO��FLiENCE VALUES USED FOR IN�EPEHDEN� STREAM � ARE: TZME OF CONCENTRATION(MINUTES) = 15.65 RAINFALL INTENSITY (INCH./HOUR) = 2.58 TOTAL S7REAM AREA (ACRES) = 12.80 707% STREAM RUNOFF(CFS) AT CONFLUaNCE = 24.65 ( **************************************************************************** � FLOW PROCESS FROM NODE 131.10 TO NODE 131.20 is CODE = 2 ____________________________________________________________________________ )}>))RArZONAL METHOD INITIAL SUBAREA ANALYSI3(4<(( ============================================================================ ASSUMED 1NITIAL SUBAREA UN1FORM DEVELOPMEN7 !S: SINGLE FAMILY (1/4 ACRE) / TC = K*[(LEN8TH**3)/(ELEVATION CHANGE)]**.2 ! INITIAL SUBAREA FLOW -LENGTH = 550.00 UP67REAM ELEVATION = 1217.142.1 DOWNSTREAM ELEVA7ION = 1215.00 � ELEVATION DIFFERENCE = 2.10 7C = .393*[( 550.00**3)/( 2.10)3**.2 = 14.919 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.655 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7316 SUBAREA RUNOFF(CFS) = 4.66 TOTAL AREA(ACRES) = 2.4@ TOTAL RUNOFF(CFS) = 4.66 **************************************************************************** FLOW PROCESS FROM NODE 131.20 TO NODE 13l.00 I8 CODE = 3 ____________________________________________________________________________ >}>}>CDMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<<( COMPUTER -ESTIMATED PIPESIZE (NOW -PRESSURE FLOW)((((( ES71MATED PIPE DIAMETERZINCH) INCREASED TO 18.000 DEP7H OF FLOW IN 18.0 INCH PIPE 18 8.5 INCHES / PXEFLOW VELOCITY(FEET/SEC.) = 5.7 ` jPS7REAM NODE ELEVATION = 1215.00 D3WN87REAM NODE ELEVATION = 1214.00 ' FLOWLBYGTH(FEET) = 100.00 MANNINGS N = .013 | ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 4.66 TRAVEL TZME(MIN.) = .29 TC(M2N.) = 15.21 � **************************************************************************** FLOW PROCESS FROM NODE 131. ~~ 00 TO NODE 111.00 IS CODE _____= 1 / ______________________�________________-___________________________ >}}>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(((<( ))>}>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<((( / COsNIFLUEKCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIMm OF CONCE�TRA7'ION(MINUTES) = 15.21 RA1N7ALL INTENSITY (INCH./HOUR) = 2.62 ' TOTAL STREAM AREA (ACRES) = 2.40 ' 107A T' STREAM RUNOFF(CFS) AT CONFLUENCE = 4.66 / CONFLUENCE INFORMATION: 91 TREAM RUNOFF TIME INTENSITY NUMBER QFS> (MIN.) (INCH/HOUR) ____________________________________________________________________________ 1 24.65 15.65 21.580 1 R •'i.. '.!FA ..r._ w N7I.yNS . 7 Y AND h CO.NC`�.}\i-1 fRi-1•i 1 L!N f' A i t-1 FORTOLP(SBC) USED FOR 2 VAKOWS TONFLUENCED RUNOFF VALjES ARE AS FOLLOWS; 29.21 28.E3 uriMPtom••. _D CONFLUENCE G:.i7l"eA ES ARE AS FOLLOWS: ..-:NO-. .4f S)t -. 2S.23TIME(MINUTES) 15.64S 70TA. qREATACRES) 15. 201I 1 ii. ;,. �. �..�.,� .r. }..�.i.;� •�:• k• •r: x-3• •R• # ;� # .p.,t: # •IF ie 3i• •ie• k' fit• •le• i^'• # •p• #.• # d�= # ii• #• T#1 t'3:• •k• •k• �i' 3i• it• •;E, # �i• •}• .�• ri• •�' •k•ry�•7?•{�• •3i• •l:• •>:• 3(• •k• •?e• •D� 3i• •�:• ?k• •lF• •�;• •}i• oq-'?s• •3{.:�. a;.. ._OW f•'1'C•_}._�..;,E FROM NODE 131.00 I C NCDE 1..+2. 00 IS CODE _____.__ })) }) CC;Ki=UTE a-`IPEFL fib\' TRAVELTIME T !' RU ".~JUBAREA (< < (< ) F )) } IU: l NG i'iJi+i-'LITER-ERT T f*'ATon m r' C,? ?' "{h� !C•- r•t rC 1 «. r. r• �!�it -•C' <r"�-C.-. iI� l•=. !'ll.i) ( f f f DIZ.,07H OF i..tr Y'f IN 27.0 :«i PIPE 1S 21.S !NCHES f''IPE ._..:'W VELOCITY &FEE'.'1'rsEC.) = 8.5 1..1; S; RE cif NODE ELEVATION - 1214.00 (i-�� :.I4.i� i�`•i�. { EAX ODiE ELEVA ION -' 11-.x..08.00 FL_Ir«_ENGTH I FEE T) = 620.00 Mir-lNNI NGS N .013 V PIPE ry _STINATPIPE DIAMETER(INCH) - 27. 00 i�I UMBER F PIPES _ P7PEFLOW THRU SUBAREA(CFS) 29.23 TRAVEL. TIME (!`illi.) - 1.21 TC(MI N. ) -- J.S. 86 •1F• •iti• fi •iti• # �i• •it• # •}t• #• �s• #: •R• # ii• #. '�• i:• •#E• ;: •3t• # #.• # di- # ii• # �• �; #• # �• •if• # �i• 9i• i!• # •ii•'r.• # :�•;f• k 9E• dE •➢i• ie # -)• it •k.• #• iF k• # # # ii• fie' ,`''.• •ii•,>9• # ii• #• # �• # 3:• •iE• #: �. �: ,;,: PLOW PROCESS "'.T'\'C_M NODE 132. 00 TO NODE 132.00 16 COD j)?!)DEG!3NATE INDEPENDENT STREAM FOR CONFLUENCE < < < ( < f.:Oi`!F LUENCE VALUES USED FOR INDEPENDENT STREAM 1 € RE s __ . _._..------•-----...__.._._. . :NE OF i-.Uhi {_r t:.:`d ! :{qf StJ>\{ (tviIlY'vTGJ) 16. 86 RAINFALL INTENSITY (INCH./HOUR) - 2.47 TCTnL STREAM PREP (ACRES) = 15.20 STREAM RUNOFF(CFS) AT CONPLUE?SCE 29.23 # -k.'� -Dt• 4:• ,`; •y:• Yi� 3P •k #• •�• # ;�' i" :i• •»• 3: ii• •a• ?:• #:• •);• •bi• #''i,• 3i• •ii• # # 3( •If• •k? •)(• •ii• ie• •k' •DE• # # # 9E• # tii• ii• •�• •C: # # iF ii• ]i' �¢• # •�• •ii' # •3F �• # # ii• �:• •34• •k• # �i •bs• ie' •if• # •#• 3e ti*•,`; �`� k FLOW PROCESS FROM NODE 140.80 TO NODE 132. 00 aS CODE, r ---------------------------------------------------------------------- jj)!)RAT!ZNA! METHOD INITIAL SUBAREA ANALYSIS<<<<< i-=,3vuNC D i iy 1 T I F'iL i:}i.,i:.'I: 9:'[GY , UNIFORM .-..-.._....__..-._._._...._....__...-•___._..___.._...._ DEVELOPMENT Sg SINGLE FAMILY (1/4 ACRE) 70 = F«= (LENG•TH•3*33 / (ELEVATIE!N CFY• AGE) 7**. C :NITIAL L 9i..1Bf•iREA LOW -LENGTH -•- 1500.00 o-!P`.7j.1:;...:M :..LEVAt ICNELEVATION^-121 7. 621 DOWNSTREAM ELEVATION DIFFERENCE = 9.00 O -- .393* i•. ( ! r. -t00. 00•ie•*3) K 9. Y0 ) .I #*. i_ -•• 20.359 00 YEAR RAINFALL INTENSI ;'Y I INCi-i%};Ci. R) - 2.203 •1.JsL CLASSIFICATION 1a"All N -t' E ^M"" Y (1 /4 ACRE LOT) RUNOFF COEFFICIENT ._ 7 073 SL`DY'3FiEA RUNOFF(CFS) 2. 81 TOTAL rREP(yrCGS) - 1.80 TOTALAL R4`E r (_~S) 2.til. �_#:F•k••I•f:•#dt•'Y:3.••li•iS'•�:':i'#-M•r'-'.�s•i!•'ii••7i•?t••it•'k••k•,�•#•k••k-'}:'�'•;�•A'#•!4'�!'#•Yo•i:•#'3e•#•D4•'lf'i•df••Y:'ii••3'i•##-kriF'R•'kii•#••'<:•ir'it•�•#•'�•,tY`1'•;F'�'�•k'9E•3e•�';';•##'3i•�ri• FLOW F''ROua_,..v FROM NODE 132.00 TO NODE 132.00 I.~"'f. COSJ = y ) D•• 1 uy\"TE INDEPENDENT STREAM TR=AM FOR CQFLUENCE < < < ( ( .�_.._......-...._--- CONFLUENCE VALUES USED FOR : .DEPENDENT STREAM C PREF..____._.__•.-----._._.......__._._____ TIME 07 i.:ON CENTi'f )*i 1ii;ti (iT1Ii,�uT;T:.C) - 20. 36 CV^, n.,, r, -.._ ...%. ti_-� j L : , ! arV-r':. i f:L'CJ I",J - ". Qli., TO -AL S"REAN U.:O, , ,+... f" J. A7 +... iJ i`,: t_1.3 C,.4 t...::. -• 2r G3 .,. 3t•A„-i; 'P. .R. Y..R's`t• �•i: ;t•y•'.=•}•?Eg`..;r.`c.�•�i•:c�._4.,�.�.,�.y..�•y..y_.:F3i•'i-'>.•#�••ii. x.ie •ti•i4•�f•'1•#.�. u..#. s� �:.�;•�r' •4•#•ri •k••D;••}•k•.,�..T:••;�if •'s#• #i?. �. �.,}:. ,�..Tc•�•}••i,•-y-#: r'• -.vPICESS ~:O NODE r..A h TO NODE Q2.30 w.3h ..itDE ^• _ . . HOD 1NI , IA! SUBAREA i•iNAr Y,r•. 18 < (: ( i nS,S• .y1•^ 7 z. DEVELOTMEN7 16: SINGLE FAMILY (1/4 ACRE) r. -' •,* :. (i...,4iJ , r -i'+°•" .�:._) /r (Li_.� l�A-i r i .+.� vs -11-•i ll�GL- )'�"i`. C. ! N: T I P••�ii._ SUBAREA BA'.EA . L_�. W LENG-. H •_ 520 .00 :_PS7REAM ELEVATION •- 1217.10 DOWNSTREAM ELEVATION = 1209.50 EL VA-; tJN DIFFERENCE = 7.60 TC = . .:r':i.:i* r i 52Z. 00#•k•,_+) / ( 7.60) 3 **. i = 23.0C YEAR RAINFALL 1 NDENSITY ( INCH/HOUR) _ 2.162 SOIL CLASSIFICATION 19 "A'' SINGLE- FAMILY (1 /4• ACRE LOT) RUNOFF COEFFICIENT = .7505 S_ :;KEA .CyCF - ( La) 1 1,iC 07AL AREA(ACRES) = 4.70 TOTAL RUNOFF(CFS) -- 11.15 ?f• •; -"f; :%• •k •�; 'ii• i'i• �i• # -le• x # iF?F #: # •!i ie• # •'si•-1e• # # �• •DE• # •3i• x'''• :t• ii• •Ti• #• # •fit• 3t• •3i• # •3F• �• # # # SE 3: 3t• # # •k #i• �• fit• •1!• •#• •!i• # # ii• # �c # i� it• •Je• fi- #i ih •!�• #• di• •'�• •W ii•.s\•• •,4' 3f FLOW PROCESS FROM ! 14L:i1E 132.30 TO 1dCiDi:; 132.40 i+7 CODE ))) ?) CCM:=i- TE: PIPEFLtOW 7RAVELTIME THRU SUBA SEA < ({ < ( CQi+iPUTER_ :ST._MA T ED-F'IPESI Zc- (NON -PRESSURE -FLOW) < { < < { --- -- -= _ DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.0 INCHES PIw'EFLOW 'VELOCITY(FEET/SE^.) = 5.4 ti. UPSTREAM NODE ELEVATION = 1209.50 ruJiLJTREAM NODE ELEVATION 1209. 00 FLOWLENGTH (FEET) = 10ol v' o MANNINGS N •= .013 ES:7 1 MA;> ED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES ( r IPE FLOW r FiRU SUBAREA(CFS) = 11.15 TRAVEL T IME (MIN.) = .31 TC (MIN.) - 11.46 •A -•3F• # # ## # i�• •i:• •t; i@ 9i• �i•JE• •k•# ii• ic• #: �• •#• �• # # fit• # # # •it• •A• # #-k• �f• •Y• # # # #•i4• # # •ii• •k• #,e•# •10 # •�i• •Y:• •r• •rc •N• # •k• �i• ;t• # •Ie• �i• # 4E Ji• if• �•# •Ic• •�:• •1f• �i• •!r-'••�e i!• �: FLOW PROCESS FROM NODE 132.20 TO NODE 132.40 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((<( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.110 SOIL CLASSIFICATION IS vA'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7465 SUBAREA AREA (ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 7.69 TOTAL AREA (ACRES) = B.00 TOTAL RUNOFF (CFS) = 16.84 TC(MIN) = 11.46 •�•a��••�•ji•#•��••gar•#�•ae•��•��•#•�•#�•#•��:-�•�•�•��•#a�###�e•�•�•#�••x•�•##�•�••�•#�•�•#•�•�•#�•�•�i•�•�•at•�;#->r#•><•#•�•�•x•�-#•�..�a;•.�.a;•. FLOW PROCESS FROM NODE 132.40 TO NODE 128.00 I S CODE 3 I )) ) ) ) CCJMPU i E PIPEFLOW ',' RA•VL'LTIMC TF;RU SUBAREA ( < (( < COMPUTER -ESTIMATED h ,L i^ Ea.l ZE 4l4L11Y-'1- Rr.:.SSiJ flw f-LClVY) C < t (! i) `='TIl CF :=LOW !N 24.0 INCH PIPE IS 17.1 INCHES - -- ---_ i:-FFLrW VELCCI + (rEE T /SEC.) = 7 . 9 LPriR:}iNOD-ELEVATION 1209..00 DOWNSTREAM NODE ELEVATION 1208.00 F_JW.ENG HiFCCT) 10o.0 MANNIN GS N -'^ .013 4ESTIMATED PIPE DIAMETER(INCH) 24.0 NjM{LfOF PIES _ I }. 1- 4-1 -,.-. W 1 I I I l L• w '_j 1_11-1 , \ 4_,'1 '. t,; Z; I '- .i CJ. ::t 'T i I;PV:_,_ •it. ir.o- iti. } = .2i e L (i fai+,. I •- 11.67 ,'E •✓r •1 •#? •�• •ii• ?^:•.R. •{ f• •,�• �:. ii� it •ii• ;� 9f• •�• •!;• •!t• •it• •i:..}. {:..�. yt..};.w. s. �•,`t• •K. tii• 3!• •;r )i• -A• #• •ii• i; fit• •tE # •t:• ?f• •ii• •it- •fir •1i• i`,• •>• iE •3i• •i{•.} .y. �..}.:e •i i� •Di -� ,'t• •3; •�:..a. ;;..�..�. x x.r.• •'t'• •3`• .�:..a I'1._tT..J•i^.• f- Rt.i.. ESE PROM NODE 132.00 ....0 NODE .. •C. iG'1L• i'] CODE ••_ .4 )))) ; }Z%l.. ' N !NDEPE;'s;ilEN7 STREAM FOR CONFLU1::ltiCE C ((( ( l ) })) )• i'lND COMPUTE VARIOUS S COiaf•'..._1•.St::1\10ED 27`r1 _AM Ji•:�WRR C t f i C =NFLUENCE `v/1=;LUES USED FOR ZNDEPF. NDEN T STREAM ,:3 ARE. TIME IF CONCENTRATION(MINUTES) 11.67 ':i;::":."r-LL l:ti7 NS_ "Y (INCH./HOUR) _ 3.08 TOTAL STREAM AREA (ACRES3 = 8.01Z "i AL STREAM nUIaiCr- 1C.^C) AT CONFLUENCE •-- 18.84 CONFLUENCE INPORMAT'ION F LjNCF) T.;i+iE; NT'INS CTY (CPS) (MIN.) (I,,NIC H/ HO!.!rR :.»_..»_.....-Yf1::9. .:.v-_-. �._.-i lU. PIG -._»-_.--Ltio467 ..._.»......_-»_.---....._---._»_...._.»-»»-__._.....___-_..._.__.._ 418.84 11.67 076 iA.lF -LL INTENSITY AND TIME s7E %F:ONLE NTCa(IOV "ri r O i- Ci:J•,W_.(i :.-s'G.• iJL+LT:i FOR .S :a (rir~•rliY{S. ,.A,,..OUS c:t.t,ar-LL,EracED RUNOFF JAf_.LJ.-S ARE AS FOLLOWS; 14 G. GG 42 40' 40. 68 =*�'"`IJ",SD C;:;NIL UENCE ESY I MATES ARE AS FOLLOWS: RUNOFF(CFS) -- 46.66 TIME (MINUTES) _ 16.862 "l i AL i- REH KC1r11ES) •-• 25.00 �� #•�t••ii••�r�••H :Z•#•#•iE3i� Y: •�••!f••k�•it•?i 9i••D:to-!i•3t••k••k•t(•,k• �'••�••?b•Ii•#••1F•if••�•,k?#••lt•di•-)Eii••lf••lE•-)E•�••DE•ii•##••36�3f•iFii••3i••k•;•};•i•3E•aa•ii•di•,e••'sE•3i•�i••�••3:•,R••�•#.•3i •,`i•�3F�•3i••i^ FLOW PROCESS F i''tCM NODE 132.00 TO NODE ------------------------------------------------------------------------------ 140.00 IS CODE =- a, b } }) )' COMPUTE P IPEFLOW TR +VELTIME THRU SUBARE A C i C ( ( \ � ' \ ' ' r .s, �J O r�r.... 1... '1.r. r•1 r1 S I Z 1 t, i .. r � 4.:;.).>. ; int %:t.. t.t , ...,�-=.0-(.i iti'I:`•� i .....Z} r i r- F;;3 a i.i= (NON -PRESSURE rLOv\ i C It 1 C ia.:Z1-•"(t.; ,.i; ,"'LOW x;a v.3.'v.1 :;kCi :-`:`E 1 2i::.4 1f\ICi-iEa _ .... ....,_._._ r.IPE:'u_OW 'Jr>...00ZY (;-EE T/.SEC. ) - 10.9 :::i; i. } ._ , I 3 NODE ._. i:1V ._i 4li _- 1208.00 ( I i : ;.. F -i / F{tr.1 U r( } DOWNSTREAM NO r ELEVATION 1GzC. 10 ) {,� '•t . 66 FLOWL•`ENG H C FEE ,) - 150-00 i'' ANN I i\isGS N .013 E 7..M1-•, i i -.f PIPE ,.._ D:cAMr:"(ci"i(II'Vi.. 33.00 NUMBER OF PIPES rrrEr.vVT Hr U J1Lrr Gr lL5) 46.66 G T1•':A'V1E.L• . _ME(illlN. ) = .iv Tgty(MaN. ) - 17.09 •):'k?E.,rc•ira..k••�•�:'-1<#.•�:•a,••fi:••?t••rt••A••;e••::•Y••3e•r•s':-.`'•#•�•�i-•�•it•r'•i•#•ie•k••}i•�F•k•if•if•fi•-J�•�•#•ii••k••it•3F•D:••a••k•di•,e••x••JE•,}Ei:••k.•�•;4u,•?F•?.•3:•Y,'••;i•�••1'•�••iE•�•it••'ti•� �-•�:••:i 1-I...COW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE ) } }) } DESZiyNA T E :c!\.DEPENDENT STREAM FOR CONFLUENCE (((( ( )> \ }) rr: COMPUTE ,rRK OUS CGCSUEN-rU STREAM d;_J-S ((f ( i C'f.".i\i=-I._UENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE. TIl",iE 01{'•(iOlv(i4ii�it.��C••:J) -- 17. 0.9 RAINFALL INTENSITY �•(ai�CH./HO�+R) w � 2.'x`5 TOTAL STREAM AREA NACRES) = 25.021 TOTAL STREAM il,..,AM 1i.i:al.J r"t &CSt AT LOIw-'_U,_'dCE •- 46.66, rtJN >-_LJC:NCE f-' ION: STREAM YINORMA1 FquNCFF ", 11 E !NTENSITY N,_• tj P E R :::i; i. } 01-11N. ,t ( I i : ;.. F -i / F{tr.1 U r( } J ) {,� '•t . 66 �} 1 r. 1:• r''•. 2. 447 RMFAL� lX-SNK7Y AND -ZXE CF =NCENTRAT13N RATIO rCRXWLA:SBC) USED FOR : 87REAgS. VAR:QW5 CONFLUENCED RUN34F VALUES ARE AS FOLLOWS: 4G.G6 COMPXED C0N7LjZX1E ESTIMATES ARE AS FO"LOWS; 46.66 TIME(MINUTES) 17.OS2 END OP RA71ONRL MEHCO ANALYSIS s===as=rrarsras==ssxx=aax=sxxcsarsamarsraaasrxrri¢s=ar=rrascassraas�sscaassarc RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL =====errs=xrsrr=x=arx=aaarrsrraca=ar=carrcaacxaasr=r vsrrc=xraeataxaasr=reaaa=x < < < < (< (< ! < < < < < < < < < < < < ((< < < < < < < < < (< < (< < > > > > > > > > > > > > > > > > > > > >) > > > >) > > > > >) > > > >) > (C> Copyright 198E Advanced Engineering Software EAES] Especially prepared for: HALL & FOREMAN, INC. **********DESCRIPTION OF * FOOTHILL DRAIN HYDROLOGY -- LATERAL C - LINE B * G103 FROM NODE 60 TO NODE 120 * SIMS AND WILLIS JN 3366 10/13/86 ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = la.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .960 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 BBC HYDROLOGY MANUAL "C" -VALUES USED <<<<<<(<(<(<<<<<<<(<(<<<<<<<<<<<<<<<<<>>>)>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software SAES] SERIAL No. A05SOA REV. 3.1 RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 60.10 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K *E(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 820.00 UPSTREAM ELEVATION = 1236.00 DOWNSTREAM ELEVATION = 1283.50 ELEVATION DIFFERENCE = 14.50 TC = . 393* E ( 820. 00**3) / ( 14.50) ] **. = 12.881 i00.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.700 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF CUEFt;'lGlENT = .7650 SUBAREA RUNOFF(CFS) = 26.31 TOTAL AREA(ACRES) = 10.00 TOTAL RUNOFF(CFS) _ 26.31 FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 --------------------------------------------------------------------------- >)>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< rs====cs===xra=xasarsx=sssssxss=s=csrrarr=casraa==sss=s...sass=,-saxrras=�==ss CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.88 RAINFALL INTENSITY (INCH./HOUR) = 3.70 TOTAL STREAM AREA (ACRES) = 10.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 26.31 FLOW PROCESS FROM NODE 60.30 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.E INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 8.50 TC = .393*[( 1000. 00**3) / ( 8. 50) ]**.2 = 16.146 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.231 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7527 { SUBAREA RUNOFF(CFS) = 2.43 l TOTAL AREA(ACRES) = 1.00 TOTAL RUNOFF(CFS) _ 2.43 FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.15 RAINFALL INTENSITY (INCH./HOUR) = 3.23 TOTAL STREAM AREA (ACRES) = 1.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.43 FLOl•! PROCESS FROM NODE 60.20 TO NODE 60.00 IS CODE _ ---------------------------------------------------------------------------- >>)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* N LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1226.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 4.50 TC = .393*[( .5.50. 00**3) / ( 4.50) ]**. 2 = 12. 809 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.713 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7653 SUBAREA RUNOFF(CFS) = 1.14 1 U t HL = . 4#40 f U 1 HL KUNUl-r (Ul-t:0 = 1.14 at-aFaE•aEaEaFaEiFaEaEaEiFaFaEaFaFaFaEafaEiEaFaFaEaFaEaEaFaEaFat•aFiFaFat•aFaEaEiEaEakiEaEiFaFiFaFiFaEaEaEaFaE•aF#aFat•aEaEaFat•aFat•aEaE•iEaEiFiEat•aFaEaEiEaEiF FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- )>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<(<< { , )>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<( =ccco�=====ca==ssscza=s=asszazzazzzzssza=a=zczzss==c=cz==z======c=c=ssz==sa CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.81 RAINFALL INTENSITY (INCH./HOUR) = 3.71 TOTAL STREAM AREA (ACRES) = .40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.14 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 28.21 12.68 3.700 2.43 16.15 3.231 3 1.14 12. 81 3.713 c RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 31.38 28.14 31.21 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 31.38 TIME(MINUTES) = 1,2.881 TOTAL AREA(ACRES) = 11.40 FLOW PROCESS FROM NODE 60.00 TO NODE 70.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(((< >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<(( DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.6 UPSTREAM NODE ELEVATION = 1223.50 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 260.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 27.00 PIPEFLOW THRU SUBAREA(CFS) = 31.38 TRAVEL TIME(MIN.) = .38 TC(MIN.) N = .013 NUMBER OF PIPES = 13.26 1 a�as*���-�� a�aFaFaFaFa:-a�a�aF��-aFaFaF�*��-aFaFa�aFaFaFaFaF���-��������*�����-aFaFaFaFaFaFaFaFaFaFaFaFaFaFaFaFaFaFaF�-��*�� FLOW PROCESS FROM NODE 70.10 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<(<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.637 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(!/4 ACRE LOT) RUNOFF COEFFICIENT = .7635 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) = 8.05 TOTAL AREA(ACRES) = 14.30 TOTAL RUNOFF(CFS) = 39.43 TC(MIN) = 1`3.26 ������ *������ * aFa�aFaFaFaFaFaF *�� �-� *� *�+Fat-*aFaFaFaFaFaFaeaFaFaFaFaFaFaFaFac-���aFaFaFaFaFaFaFaFaFaFaFafaFaFaFaFaFaFaFaFaFaFaF FLOW PROCESS FROM NODE 70.20 TO NODE 70.00 IS CODE = e >>>))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<( 1400. 160 Yt--HK KHl1Yt ftLL 11V f tNtDl ( Y (lNL;H/HuuNJ = .5. b.Sl SOIL CLASSIFICATION IS "A" SINGLE-PAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7635 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 5.00 TOTAL AREA(ACRES) 16.10 TOTAL RUNOFF(CFS) 44.43 TC (MIN) = 13.26 FLOW PROCESS FROM NODE 70.00 TO NODE 75.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<(<< >>)))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<( DEPTH OF FLOW IN 33.0 INCH RIFE IS 23.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.8 UPSTREAM NODE ELEVATION = 1216.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 44.43 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 13.34 FLOW PROCESS FROM NODE 70.40 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.623 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7632 SUBAREA AREA(ACRES) = 2.70 SUBAREA RUNOFF(CFS) = 7.47 TOTAL AREA(ACRES) = 18.80 TOTAL RUNOFF(CFS) = 51.90 TC (MIN) = 13.34 FLOW PROCESS FROM NODE 70.30 TO NODE 75.00 IS CODE = 8 >)>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(<<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.63 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7632 SUBAREA AREA(ACRES) = 6.70 SUBAREA RUNOFF(CFS) = 16.53 TOTAL AREA(ACRES) = 25.50 TOTAL RUNOFF(CFS) = 70.42 TC (MIN) = 13.34 FLOW PROCESS FROM NODE 75.00 TO NODE 120.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>)>COMPUTE PIPEFLOW TRAVELTIME THRU SU&AREA<<<<< >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<( DEPTH OF FLOW IN 39.0 INCH PIPE IS 27.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.5 UPSTREAM NODE ELEVATION = 1218.00 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH ( FEET) = 250.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA (CFS) = 70.42 TRAVEL TIME(MIN. ) = .36 TC(MIN. ) = 13.71 FLOW PROCESS FROM NODE 120.20 TO NODE 120.00 IS CODE = 8 >)>)>ADDITION OF SUBAREA TO MAINLINE PEAS{ FLOW<<<<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.565 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7618 SUBAREA AREA(ACRES) 5.10 SUBAREA RUNOFF<CFS) = 13.85 TOTAL AREA(ACRES) = 30.60 TOTAL RUNOFF(CFS) = 84.28 TC(MIN) = 13.71 FLOW PROCESS FROM NODE 150.10 TO NODE 150.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((< 100.00 YEAR RAINFALL INTENSITY<INCH/HOUR) = 3.565 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7616 SUBAREA ARBA(ACRES) = 3.90 SUBAREA RUNOFF(CFS) = 10.59 TOTAL AREA(ACRES) = 34.50 TOTAL RUNOFF(CFS) = 94.87 TC (MIN) = 13.71 FLOW PROCESS FROM NODE 10.00 TO NODE 1:0.00 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) = 13.71 RAINFALL INTENSITY <INCH. /HOUR) = 3.57 TOTAL STREAM AREA (ACRES) = 34.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 94.87 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------- 1 94.87 13.71 3.565 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 94.87 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 94.87 TIME(MINUTES) = 13.705 TOTAL AREA(ACRES) = 34.50 END OF RATIONAL METHOD ANALYSIS t RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (C) Copyright 1982 Advanced Engineering Software EAESJ Especially prepared for: HALL & FOREMAN, INC. C<C{<{{<({C<C<C<<<CCCCC<<{{{C<CCC<{<<C>}}J>}>}J}>>1>}1}}1>}>11>>>>1})>1>}}}1 **********DESCRIPTION OF * FOOTHILL DRAIN HYDROLOGY - LATERAL C - LINE B * Q25 FROM NODE 60 TO NODE 120 * SIMS AND WILLIS JN 3366 10/13/86 -------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ 1980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1_ 15:0 SLOPE OF INTENSITY DURATION CURVE = .6000 58C HYDROLOGY MANUAL "C" -VALUES USED (C<CCC<C<<C(<C{CC<C<C<CC<<<CCCC<C<<CCCJ}>}1)}11}}1>>11}>>)11}>}>}>>}>>)J>>>) Advanced Engineering Software EAESJ SERIAL No. A0560A REV. 3.1 RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 60.10 TO NODE 60.00 IS CODE = 2 >>>}>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY 41/4 ACRE) TC = K*E(LENGTH**3)/(ELEVATION CHANGE)]**.2 l INITIAL SUBAREA FLOW -LENGTH = 820.00 UPSTREAM ELEVATION = 1238. 00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 14.50 TC = . 39.3* E ( 820. 00**,3) / ( 14. 50) J **. 2 = 12.681 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 8.900 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7415 SUBAREA RUNOFFICFS) _ 21.50 TOTAL AREA(ACRES) = 10.00 TOTAL RUNOFF(CFS) = 21.50 ac••���+E�+E�����•�+E*����������•x•x•+t•��•x•��•������•����ac•��•+t•�����x+F�����-�•�•���c-�••K•+E�•*�at•�t-�•��t••►� FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- >)>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.86 RAINFALL INTENSITY (INCH./HOUR) = 2.90 TOTAL STREAM AREA (ACRES) = 10.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 21.50 FLOW PROCESS FROM NODE 60.30 TO NODE 60.00 IS CODE = 2 ---------------------------------------------------------------------------- >)>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 1000.00 UPSTREAM ELEVATION = 1232.00 DOWNSTREAM ELEVATION = 123.50 ELEVATION DIFFERENCE = 8.50 TC = . 393* E ( 10021. 00**3) / ( 8.50) 7 **. 2 = 16.146 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.532 SOIL CLASSIFICATION IS "A" SINGLE-FPMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7258 CSUBAREA RUNOFF(CFS) = 1.84 TOTAL AREA(ACRES) = 1.00 TOTAL RUNOFF<CFS) = 1.84 FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CDNFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.15 RAINFALL INTENSITY (INCH./HOUR) = 2.53 TOTAL STREAM AREA (ACRES) = 1.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.84 FLOW PROCESS FROM NODE 60.20 TO NODE 60.00 IS CODE = 2 ------------------------------------------------------ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<(<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]*•*.2 INITIAL SUBAREA FLOW -LENGTH = 550.00 UPSTREAM ELEVATION = 1228.00 DOWNSTREAM ELEVATION = 1223.50 ELEVATION DIFFERENCE = 4.50 TC = . 393*E ( 550. 00**3) / ( 4. 50) J**. 2 = 12.809 :5.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.910 SOIL CLASSIFICATIQN IS "A" SINGLE-FAMILY41/4 ACRE LOOT) RUNOFF COEFFICIENT = .7419 SUBAREA RUNOFF (CFS) = .B6 Tl1TlU J M=n IJ1r DCC1 - bf7. -rn -nl of IA lflrr i r�rr-- ni- t u t nt_ rtrncn %t-rrv...rico/ - . -nu T U 1 Mt_ mwtvut'r ttrf a / - . bo FLOW PROCESS FROM NODE 60.00 TO NODE 60.00 IS CODE 1 >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( C >>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<(<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 12.81 RAINFALL INTENSITY (INCH./HOUR) = 2.91 TOTAL STREAM AREA (ACRES) = .40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ .86 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) -------------------------------------------------------------------------- 1 21-50 12.88 21900 2 1.64 16.15 2.532 3 .66 12.61 2.910 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIG FORMULA(SBC) USED FOR 8 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 23.8.3 21.37 23.70 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 23.83 TIME(MINUTES) = 12.881 TOTAL AREA(ACRES) = 11.40 ( FLOW PROCESS FROM NODE 60.00 TO NODE 70.00 IS CODE = 3 ----------------------- ----------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((<< >)>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<( DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.8 UPSTREAM NODE ELEVATION = 1223.50 DOWNSTREAM NODE ELEVATION.= 118.50 FLOWLENGTH(FEET) = 26Qi.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) _ :3.83 TRAVEL TIME(MIN.) = .40 TL(MIN.) = 13.28 FLOW PROCESS FROM NODE 70.10 TO NODE 70.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 25.00 YEAR RAINFALL INTENSITY<INCH/HOUR) = 2.847 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7395 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) = 6.11 TOTAL AREA(ACRES) = 14.30 TOTAL RUNOFF(CFS) = 29.94 TC(MIN) = 1`3.28 FLOW PROCESS FROM NODE 70.20 TO NODE 70.00 IS CODE = 8 ---------------------------------------------------------------------------- >))>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< n'C AA \/TTT .1/\T V11^/\1 1 T1lT T`1. If�T T\/ / TY1111 /11111 X11\ - /. f1/'7 iJ. 0040 T=MR RMImr""f- AN J =114zl IT It lfVLlm/ rlwur%I / SOIL CLASSIFICATION IS "A" SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7395 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 3.79 TOTAL AREA(ACRES) = 16.10 TOTAL RUNOFF(CFS) = 33.72 TC(MIN) = 13.28 I FLOW PROCESS FROM NODE 70.00 TO NODE 75.00 IS CODE 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 30.0 INCH PIPE IS 21.1 INCHES PIPEFLOW VELOCITY4FEET/SEC.) = 9.1 UPSTREAM NODE ELEVATION = 1216.50 DOWNSTREAM NODE ELEVATION = 1218.00 FLOWLENGTH(FEET) = 50.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER4INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 33.72 TRAVEL TIME (MIN. ) = .09 TC(MIN.) = 13.36 ��!-���aE�������aE�t-iE�E+E•►S••IEiEi(-IE��E����E��+E����E�����•x-��*�����E�E��E��E������-�E �-����aE•�•�E�•�f•+E�E�� FLOW PROCESS FROM NODE 70.40 TO NODE 75.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((<< 25.00 YEAR RAINFALL INTENSITY4INCH/HOUR) = 2.835 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7391 SUBAREA AREA(ACRES) 81.70 SUBAREA RUNOFF(CFS) = 5.66 TOTAL AREA4ACRES) = 18.$0 TOTAL RUNOFF(CFS) = 39.36. \ TC(MIN) = 13.38 FLOW PROCESS FROM NODE 70.30 TO NODE 75.00 IS CODE = 6 >>>>>ADDITION OF SUBAREA TO MAINLINE DEAF; FLOW(<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.835 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7391 SUBAREA AREA(ACRES) = 6.70 SUBAREA RUNOFF(CFS) = 14.04 TOTAL AREA4ACRES) = 25.50 TOTAL RUNOFF4CFS) = 53.42 TC(MIN) = 13.36 FLOW PROCESS FROM NODE 75.00 TO NODE 120.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((<(< >>>>)USING COMPUTER -ESTIMATED PIPESIZE 4NON-PRESSURE FLOW)((((( DEPTH OF FLOW IN 33.0 INCH PIPE IS 26.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.5 UPSTREAM NODE ELEVATION = 1216.00 ( DOWNSTREAM NODE ELEVATION = 1215.20 \ FLOWLENGTH4FEET) = 250.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 53.42 TRAVEL TIME (MIN. ) = .40 TC(MIN.) = 13.77 FLOW PROCESS FROM NODE 120.20 TO NODE 1:0.00 IS CODE = 8 >) » )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(((<< :5.00 YEAR RAINFALL INTENSITYtINCH/HOUR) = 2.786 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT - .7371 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 10.47 TOTAL AREA(ACRES) = 30.60 TOTAL RUNOFFtCFS) = 63.89 TCtMIN) = 13.77 FLOW PROCESS FROM NODE 120.10 TO NODE 122.00 IS CODE = 8 ---------------------------------------------------------------------------- >)>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<((<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.786 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7371 SUBAREA AREAtACRES) = 3.90 SUBAREA RUNOFF(CFS) = 8.01 TOTAL AREA(ACRES) = 34.50 TOTAL RUNOFF(CFS) = 71.90 TC(MIN) = 1.3.77 FLOW PROCESS FROM'NODE 120.00 TO NODE 120.00 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) 13.77 L' RAINFALL INTENSITY (INCH./HOUR) _ 2.79 TOTAL STREAM AREA tACRES) = 34.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 71.90 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 71.90 13.77 2.786 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 71.90 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 71.90 TIME(MINUTES) = 13.773 TOTAL AREA(ACRES) _ 34.50 END OF RATIONAL METHOD ANALYSIS r RRTIONRL METHOD HYDROLOGY COMPUTER PROGRAM=====_______^____.' PAGED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL <<<<<<<<<<<<<<<<<<<<<<<(<<<<<<<<<(<<<<>>>>>)>>>)>>>}>>)>>>)>>>>>>>>>>>>>>>>> (C) Cooyriuht 1982 Advanced Engineering Software EAES1 Especially prepared for: HALL & FOREMAN, INC. <<<<<<<<<<<<<<<<<<<<<<<<<(<<<<<<<<<<<<}>>)}>>>>}}}}}}>}}}>>}>>>}>>>>}})})>>> ********DESCRIPTION OF RESULTS������+��������ae�i������x►E�ac��cr��at��x��a!�ac�� * FOOTHILL DRAIN HYDROLOGY — WEST HERITAGE PARKWAY LATERAL — LINE B * 0100 FROM NODE 140.2 TO NODE 140 SIMS AND WILLIS 7N 5356 10/14/86 1 PM �- a• t �• •� •��• �• �• •r: *• � � �:� �• �+c-�•� ��-�•x• •x• •►�• •r�•� �•�•�ac-�• � �-�•��•��••►�• � �• �• �• �•�-���+��-� �•�• �•+F* �-�•x� •��ac• � �• •� ac••?�• �• �•-� � � •ie• ��i• --------------------------------------------------------- USEr SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 Sr,ECIFIED PERCENT OF GRRDIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10—YEAR STORM 80—MINUTE INTENSITY(INCH/HOUR) _ .960 1t1�'�—YE•AR STORM E0—MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1—HOUR INTENSITY(INCH/HOUR) = 1.4700 SLUPE OF INTENSITY DURATION CURVE = .6000 SBC HYDROLOGY MANUAL "C"—VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<(<<<<<<<<<<<<>}}}}>>>>>>}>>11>1>}>>>>>>>>>>)>>>>>)> Advanced Engineering Software EAES1 SERIAL No. A0580A REV. :3.1 RELEASE DATE: 5/01/85 <<<<;<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<!<<<>)>}})>>>}}>}}>)}>})}})}>)>>11})}}}}}) �: •t *+• •+� f-+=�: �-r' �-� •r: �-�• •li-•1� � �•�•+•�+:-�• �• �• �-�� �• •kx-�+E•��!-aE �f•ac-•►� �• ���e• � �i-�>+� •x�* Icai•�•�•�• * �•r�c-+• �E•i: ac-g x• ��• �•u• •r: •�•� *-�e-+• PLOW PROCESS FROM NODE 140. 0 TO NODE 140.90 IS CODE = E ---------------------------------------------------------------------------- >>)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOI=IMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K* E (LENGTr- ** .) / (ELEVATION CHANGE) 3 **. 2 INITTAL SUBAREA FLO:J—LENGTH = 1000.00 UPSTREAM ELEVATION = 1551.00 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE — 12.00 TC = . 393+ E ( 1000. 00**3) / ( 12. 00) 3 2 = 15. 070 106. 4'z1�, YmWi KAiNt-HLL irJ I tN5i i Y i 1t Li H/Hi.1UH)= S..Sb.`3 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7566 SUBAREA RUNOFF<CFS) = 15.85 TOTAL AREA<ACRES) = 7.80 TOTAL RUNOFF(CFS) = 19.68 FLOW PROCESS FROM NODE 140.90 TO NODE 141.00 IS CODE = 3 ---------------------------------------------------------------------------- )>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA< m < >>>)>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<<< DEPTH OF FLOW IN 21.0 INCH WIPE IS 13.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 1..4 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1206.50 FLOWLENG T H (FEET) = 80.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER<INCH) = 21.02 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 19.66 TRAVEL TIME(MIN.) = .11 TC<MIN.) = 15. 18 F; -OW PROCESS PROM NODE 141.00 TO NODE 141.00 I S CODE = 1 ----------------------------------------------------------------------------- >>))>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CDNFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.16 RAINFALL INTENSITY (INCH./HOUR) = 3,31 TOTAL STREAM AREA (ACRES) = 7.80 j\. TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 19.88 FLOW PROCESS FROM NODE 140.50 TO NODE 140.50 IS CODE = 2 ---------------------------------------------------------------------------- >>)>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<(<<( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENd=TH**3)/!ELEVATION CHANGE))**.2 INITIAL SUBAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1216.00 DOWNSTREAM ELEVATION = 1211.00 ELEVATION DIFFERENCE = 7.00 TC = . 392* L < 650. 00*#:3) / ! 7. 00) 3 **. 2 = 12.962 _00.00 YEAR RAINFALL INTENISITY(INCH/HOUR) = 3.686 SOIL CLASSIFICATION IS "A" SI NGL E -FAMILY < 1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7847 SUBAREA RUNOFF(CFS) = 8.46 TOTAL AREA(ACRES) = 3.00 TOTAL RUNOFF(CFS) = 8.46 �=****�-*fi-*#�-*****�i-+r#�ac-*****#�******-******-*-+qac-*-******►c*x-x-**#�*****�-x***#F*+�-�-#�*�-#�*-** FLOW PROCESS FROM NODE 140.60 TO NODE 150.10 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<( UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1207. 50 STREET LENGTH(FEET) = 1.300.00 CURB HEIGTH- INCHES) = 6. STREET HALFWIDTH(FEET) = 24.00 STREET CROSSFALL(DECIMAL) = .+2290 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 10.19 STREET FLOWDEPTH<FEET) _ .55 t'H"t-0�1m=m] = iV-'*" AVERAGE FLOW VELOCITY{FEET/SEC.) _ .3.37 PRODUCT OF DEPTH&V>✓LOCITY = 1.64 STREETFLOW TRAVELTIME<MIN) = 6.43 TC(MIN) = 15.35 100. 00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.695 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7414 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFFICFS) = 3.43 SUMMED AREA<ACRES) = 4.60 TOTAL RUNOFF(CFS) = 11.89 END OF SUBAREA STREETFLOW HYDRAULICS! DEPTH<FEET) = .57 HALFSTREET FLOODWIDTH(FEET) = 14.7,L - FLOW VELOCITY(FEET/SEC.) = 3.59 DEPTH*VELOCITY = 2.04 FLOW PROCESS FROM NODE 140.50 TO NODE 150.10 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA(<<<< UPSTREAM ELEVATION = 1211.00 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 200.100 CURB HEIG T H ( INCHES) = 6. STREET HALFLJIDTH(FEET) = 24.00 STREET CROSSFALL(DEC'_MAL) = .0290 SPECIFIED ,'NUMBER OF HALFSTREETS CARRYING RUNOFF = I *-TRAVEL T IME COMPUTED USING MEAN FLOW (CFS) = 11.89 STREET FLDWDEPTH(FEET) = .53 HALFSTREET FLOODW I DTH ( FEET) = 1:3.34 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.32 PRODUCT OF DEPTH&VELOCITY = 2.28 S-TREETFLOW TRAVELTIME (MIN) = .77 TC (MIN) = 24,.1.17 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.826 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7358 SUBAREA AREA(ACRES) = 0.00 SUBAREA RUNOFF(CFS) = 0.00 SUMMED AREA(ACRES) = 4.60 TOTAL RUNOFF(CFS) = 11.59 ENS.) OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .03 HALFSTREET FLOODWIDTH(FEET) = 13.34 PLOW VELOCITY (FEE T /SEC.) = 4.32 DEPTH*VELOCITY = 2.28 �•���x}-�i•�;�•.�••��•�•+•�-�•�•�•�•�•��•������x-mac•��•�-aE��•x-�•�•��•�•�t-�•�e-��•x-�t-i: ��e-ac-at-���••�.•►�••��•�•��•�ac•�•�•�•+•ai•�••t��•�•�• FLOL: PROCESS FROM NODE 140.40 TO NODE 150.10 IS CODE = 8 ---------------------------------------------------------------------------- •1>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.826 SOIL CLASSIFICATION IS "A" SI�Ft3LE-FA �iILY (1;'4 ACRE LOT) RUNOFF COEFFICIEN' T = .7388 SUBAREA AREA (ACRES) = 1.90 SUBAREA RUNOFF/CFS) = 3.97 TOTAL AREA (ACRES) = 6.50 TOTAL RUNOFF (CFS) = 15.8E TC(MIP1) = 20.17 dr }• �iE• �e•aE• � iE iE ii• •!i• �'.• af•+• •1E �!• if }• * i5 •K � �• •?E- � •� i5 •if• •?� iE i.= iE �E•aE• •k iE •k• •le• �'.• af• � •IE it •iE •iE•+; * i!-�• i= i': i-�- i�• aE iE iE •Y• iE •i'.• iE i�aF •i�;r •x• �E-ai-ar if• •tE• •!E• •iE• •IE •Ii• #:• FLOW PROCESS FROM NODE 150.10 TO NODE 141.00 IS CODE = 3 ---------------------------------------------------------------------------- )>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>?))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<((<< DEPTH' OF FLOW IN 33.0 INCH PIPE IS 22.4 INCHES PIPEFLOW VELOCIT•Y<FEET/SEC.) = 3.7 UPSTREAM NODE ELEVATION = 1207.50 DOWNSTREAM NODE ELEVATION = 3206.50 FLOWL ENGTH < FEET) = 680.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 Y ! Pi7_r L_0W 1 t' KU - I Z1. 66 TRAVEL T IME(MIN.) = 3.06 TC(MIN.) = 23.23 * *aE•R * * * ii-** it a! -1r iE �E iE iE �E iEaE aE it �E �F i� �Ea!-�F ii-�E• •i�• iE �E-iE �(-�E i�iF iF �i-if ibiE ae-iE i� �: k iE d(aF iF;Eaf•ab iE �E +F lE i� •iF iF i�-�E i� iE �E aE �E � � iF iFaE• iE+E FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- >>)>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) 22.22 RAINFALL INTENSITY (INCH./HOUR) = 2.60 TOTAL STREAM AREA (ACRES) = 6.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15.66 *u-*************��a������+��-+�*��x•mat•���*+:•�-+E��*mac-���e•���*�•���•�at��a�����•�*•�*-�x-*•����r� PLOW PROCESS FROM NODE 140.30 TO NODE 140. ,`s0 IS CODE = 2 ----------------------------------------------------------------------------- ))>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*;4LENGTH**Z3)/(ELEVATION CHANGE)1**,2 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1211.30 DOWNS -REAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 2.30 TC = . ,i93*C 1 450. 00**3) ,1 ( 2.30) 3 **. 2 = 12.988 !00.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.682 SOIL CLASSIFICATION IS "A„ SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7646 SUBAREA RUNOFF(CFS) = 3.38 TOTAL AREA(ACRES) = 1.2ei TOTAL RUNOFF(CFS) = 3.38 *ae-**�FaE�Ea-***�i•*i�*li*****Ir�e�E***fir*a: aE****�ei�•�E*�E•**�e*�e*******ifaEiEat•*i!-**aE***�E***�E**lE•1�*** FLOW PROCESS FROM NODE 150. 0 TO NODE 141.00 is CODE = 6 -------------------------------------------------------------------- >)>)')COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< UPSTREAM ELEVATION = . 1207. 50 DOWNSTREAM ELEVATION 1206.50 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = S. STREET HALFWIDTH(FEET) = 24.00 STREET CROSSFALL(DECIMAL) = .0a90 S:='ECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.19 STREET FLOWDEPTH(FEET) = .55 HALFSTREET FLOODWTDTH(FEET) = 14.03 A1,'ERAGE FLOW VELOCITY (FEET/SEC.) = 1.39 PRODUCT OF DEPTH&VEL OCITY = .76 STREETFLOW TRAVELTIME(MIN) = 7.82 TC(MIN) = :0.81 100.+0 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.775 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7367 SUBAREA AREA(ACRES) _ .80 SUBAREA RUNOFF(CFS) = 1.64 SUMMED AREA(ACRES) = 2.00 TOTAL RUNOFF(CFS) = 5.01 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEEI') = .59 HALFSTREST FLOODWIDTH(FEET) = 15.41 FLOW VELOCITY (FEET/SEC.) = 1. 39 DEPTH*VELOCITY = .81 FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<(( CO3IFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 80.81 RAINFALL INTENSITY•(INCH./HOUR) = 2.76 TOTAL STREAM AREA (ACRES) = 2.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 5.o1 FLOW PROCESS FROM NODE 140.70 TO NODE 14.1.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY <1/4 ACRE) TC = K*r4LENGTH**3)/(ELEVATION CHANCE)3**.2 INITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 1208.00 DOWNSTREAM ELEVATION = 1206.50 ELEVATION DIFFERENCE = 1.50 TC = . 353* 1 ( 450 . 00**3) / ( 1. 0) 3 **. 2 = 14. 14.7 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.499 SOIL CLASSIFICATION IS "A" Slr.GLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7601 SUBAREA RUNOFF (CFS) = i_.39 TOTAL AREA(ACRES> = .90 TOTAL RUNOFF(CFS) = 2.39 FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 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) = 14.15 RAINFALL INTENSITY (INCH./HOUR) = 3.50 TO AL STREAM AREA (ACRES) = .90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 2.39 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN. ) (INCH/HOUR) ---------------------------------------------------------------------------- 1 19.99 15.16 3.35,s L 15.86 3. 23 2.598 5. 01 20. 61 2.775 4 2.39 14.115 3.498 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO ;70RMULA(S8C) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 36.19 37.73 37.56 33.98 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 37.73 TIME(MINUTES) = 2.3.1231 TOTAL AREA(ACRES) = 17.0 PLOW PROCESS FROM MODE 141.00 TO NODE 14.0.00 IS CODE = 3 ---------------------------------------------------------------------------- >)'>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<(< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NDN -PRESSURE FLOW)((m ---------------------------------------------------------------------------- DEPTH UP FLOW IN 39.0 INCH PIPE IS 216.7 INCHES PIPEFLUW VELOCITY(FEET/SEC.) = 6.2 U+'S 1 iibf- M {NUDE ELE VH l 1 UN = l ddb. no DOWNSTREA;+t NODE ELEVATION = 1206.10 FLOWLENCTH (FEET) = 120.00 MANNINOS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 35.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 37.73 TRAVEL TIME(MIN.) = .32 TC(MIN.) = 23.55 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STRERM FOR CONFLUENCE((<(< >>)>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 23.55 RAINFALL INTENSITY (INCH./HOUR) = 2.55 TOTAL STREAM AREA (ACRES) = 17.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 37.73 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------•------------------------------------------------------- 1 37.73 23.55 2.576 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA/ SBC) .'USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 37.73 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 37.73 TIME(MINUTES) = 23.551 TOTAL AREA (ACRES) = 17.20 END OF RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM -- BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL [!CC<!!C!<CC<{![<[{<<({<C<CC<<(CC<[C<[1>>>11>>>}11>})1>>>>}>1>1}?>>1>} » >}11 (C) Caayright 1988 Advanced Engineering Software EAESD Especially prepared for: HALL & FOREMAN, INC. *+=****** *DESCRIPTIO1%J OF RESULTS***** *** ***********ac**** ** FQOTHTIL DRAIN HYDROLOGY - WEST HERITAGE PARKWAY LATERAL - LINE P r C<25 FROM NODE 140.2 TO NODE 140 SIMS AND WILLIS TN 3366 10/14/66 --------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT (YEAR) = 25.00 {' SPECIFIED MINIMUM PIPE SIZE{INCH) = 18.00 SZECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED ED RAINrALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OP INTENSITY DURATION CURVE _ .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED {{{{{{{{{{{{{{{{{{{<<CCC{[[{<C(<[<{<<<>}>>}>>}>>>1>)}>1>>1>)}>>}1)>>>>)1>11> Advanced Enaineerina Software CAESD SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/85 !!{{{{{({<!!<!<C!<<CCC!(CC{((({<C({{{{}}1)>>)))))>>))>)1})))1>>}>>1>))1))}>> =L0W PROCESS FROM NODE 140. 20 TO NODE 140.90 IS CODE = 2 ---------------------------------------------------------------------------- )1)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(((<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY 41/4 ACRE) ` TL = K*E (LENGTH**3) / (ELEVAT ION CHANGED**. 2 INITIAL. SUBAREA FLOW -LENGTH = 10+0.00 UPSTREAM ELEVATION = 1221.00 DOWNSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 12.00 TC = . 393+` C 1000. 00**3) / ( 12. 00) f **. 2 = 15.070 :.:D, 00, YcHft NH i NF-HLL i N 1 tNtSi I Y { 1 NL"H/ HLILIH) SOIL CLASSIFICATION IS "A" SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7308 SUBAREA RUNOFF<CFS) = 15.05 TOTAL AREA(ACRES) = 7.80 TOTAL RUNDFF(CFS) = 15.05 *�*at-��(-iEii9E*it*�i-�E�E it�Ei��EaE�EiEiEiEiFiE+FiEaFiF��FiE�EiEiE�EiE�F�(-aFiEaEiE�E�r.-�E�EIF�F1F�EiE�Fac-iE�EiFaEIEIEiEiFdE�iEiEiE�EaE�EikiEaF�* FLOW PROCESS FROM NODE 140.90 TO NODE 141.00 IS CODE = 3 >)>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((<<< >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 18.0 INCH F'IF'E 19 12.5 INCHES PIPEFLOW VELOCITY (FEET/SEC,) = 11.5 UPSTREAM NODE ELEVATION = 1205.00 DOWNSTREAM NODE ELEVATION = 1206.50 FL D)WLENG T H ( FEET) = 80.00 MANN I NGS N = .013 ESTIMATED F'IF'E DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 ='I,'CFLOiJ THRU SUBAREA(CFS) = 15.05 TRAVEL TIME(MIN.) = .12 TC(MIN,) = 15.19 FLOW PROCESS FROM NODE 141.00 TO NODE 14.1. 00 I S CODE = 1 ---------------------------------------------------------------------------- )>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION<MINUTES) = 15.i5 RAINFALL INTENSITY CINCH./HOUR) = 2.63 TOTAL STREAM AREA (ACRES) = 7.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15.05 C PLOW PROCESS FROM NODE 140.50 TO NODE 140.50 IS CODE = 2 >>>)) RAT IONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUPAREA FLOW -LENGTH = 650.00 UPSTREAM ELEVATION = 1216,00 DOWNSTREAM ELEVATION = 1211.00 ELEVATION DIFFERENCE = 7.00 -C = . 393*� ( 600. 00**3) / ( 7. 00) 1**. 2 = 12. 962 251,00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.889 SC.IL CLASSIFICATION IS "A" SINGLE-PAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7411 SUBAREA RUNOFF(CFS) = 6.42 TOTAL AREA(ACRES) = 3.00 TOTAL RUNOFF(CFS) = 6.4 FLOW PROCESS FROM NODE 140.60 TO NODE 15,41.10 IS CODE = 6 ---------------------------------------------------------------------------- >)>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA(<<<< UPSTREAM ELEVATION DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 1300.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.00 STREET CROSSFALL(DECIMAL) = .0290 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.70 STREET FLOWDEPTH(FEET) _ .49 rlF-iLr b i iKtt 1 r Luuvw 1 L i m% t-== i/ = 1 1. 7/ AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.43 PRODUCT OF DEPTH&VELOCITY = 1.67 STREETFLOW TRAVELTIMEIMIN) = 6.32 TC(MIN) = 19.29 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.276 SOIL CLASSIFICATION IS "A" 1 SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7118 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) 2.59 SUMMED AREA(ACRES) = 4.60 TOTAL RUNDFFtCFS) = 9.02 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .53 HALFSTREET FLOODWIDTH(FEET) = 13.34 FLOW VELDCITY(FEET/SEC.) = 3.27 DEPTH*VELOCITY = 1.73 FLOW PROCESS FROM NODE 140.50 TO NODE 150.10 IS CODE = 6 >>>?)COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<((<( ---------------------------------------------------------------------------- UPSTREAM ELEVATION = 1211.03 DOWNSTREAM ELEVATION = 1207.50 STREET LENGTH(FEET) = 200.)00 CURES HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 24.0+ STREET CROSSFALL(DECIMAL) = .0290 SPECIFIED NUMBER OF HALFSTREETS CARRYINGS RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = 9.02 STREET FLOWDEPTH(FEET) = .49 HALPStREET FLOODWIDTH(FEET) = 11.97 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.01 PRODUCT OF DEPTH&VELOCITY = 1.95 S: R2ETFLOW TRAVEL T IMEIMIN) = . B3 TC (MIN) = 20.12 25.00 YEAR RAINFALL INTENSITY(INCH/HDUR) = 2.219 ;SOIL CL ASSIF ICATION IS "A" \ SINGLE-=AMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7063 SUBAREA AREA(ACRES) = 0.00 SUBAREA RUNOFF(CFS) = 0.0Qt SUMMED AREA(ACRES) = 4.60 TOTAL RUNOFF(CFS) = 9.02 END OF SUBAREA STREETFLOW HYDRAULICS: DETITH(FEET) = .49 HALFSTREET FLOODWIDTH(FEET) = 11.97 FLOW VELOCIT'Y(FEET/SEC.) = 4.01 DEPTH*VELOCITY = 1.95 FLOW PROCESS FROM NODE 140.40 TO NODE 150.10 IS CODE = 8 ---------------------------------------------------------------------------- >))>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = .219 SOIL CLASSIFICATION IS "A" SINGLE-FAMILYII/4 ACRE LOT) RUNOFF COEFFICIENT = .7083 SUBAREA AREA (ACRES) = 1.90 SUBAREA RUNDFF (CFS) = 2.99 TOTAL AREA(ACRES) = 6.50 TOTAL RUNOFF(CFS) = 12.00 TC(MIN) = 20.12 FLOW PROCESS FROM NODE 150.10 TO NODE 141.00 IS CODE = 3 ---------------------------------------------------------------------------- >>)>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA M << `>>>)USING, COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<( DEPTH OF FLOW IN SO. 0 INCH PIPE IS :-0. 0 INCHES PIPEFLOW VELOCIT'Y(FEET/SEC.) = 3.5 UPSTREAM NODE ELEVATION = 1207.50 DOWNSTREAM NODE ELEVATION = 1206.50 FLOWLENGTH(FEET) = 680.00 MANNINGS N = .013 ESTIMATED ='IPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 i dr'trL1�Lv : HKu = Imo. 040 TRAVEL ;IMEIMIN.) _ .3.._.'3 TC(MIN. ) = 2.3.40 iF iF iF�E �iF iE�t iE * * * * * * i(-iE � iE i� iEiE * i-iE � iE aE iF aF * * aE* iEiE * � iE iE;l* iE �E * iE iE iE �F �E aE iE *;E if �E iF:E iE'IF aE if-iE � iE iE iE iFiE � iE iF iEiraF FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE = 1 ---------------------------------------------------------------------------- ))>)>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 23.40 RAINFALL INTENSITY IINCH./HDUR) 2.03 TOTAL STREAM AREA (ACRES) = 6.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.00 *�: �#****iE*�+-i:******iF****iF�F**�E**iEaEiE*iEiE*�E***iEiE�E-iE*iE-iEiE�EiF*aFiE*iEtEaEiEiE*iE**iE**aE*i!-aE**** FLOW PROCESS FROM NODE 140.30 TO NODE 140.30 IS CODE = 2 ---------------------------------------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*: (LENIGT�-:**3) / (ELEVATION CHANGE) ] **. 2 :NITIAL SUBAREA FLOW -LENGTH = 450.00 UPSTREAM ELEVATION = 121i.30 DOWIJSTREAM ELEVATION = 1209.00 ELEVATION DIFFERENCE = 2.30' TC = . 353* I ( 450. 00**3) / l 2. 30) ] **. 2 = 12. 588 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.886 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY41/4 ACRE LOT) RUNOFF COEFFICIENT = .7410 SUBAREA RUNOFF(CPS) = 2.57 TOTAL AREA(ACRES) = 1.20 TOTAL RUNOFF(CFS) = 2.07 FLOW PROCESS FROM NODE 150.20 TO NODE 141.00 IS CODE = 6 ---------------------------------------------------------------------------- )>)>)COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA(<<<< ---------------------------------------------------------------------------- UPS'TREAM ELEVATION = 1207.50 DOWNSTREAM ELEVATION = 1206.50 STREET LENGTH(FEET) = 650.00 CURB HEIGTH(INCHES) = S. STREET HALFWIDTH(FEET) = 24.00 STREET CROSSFALL(DECIMAL) = .0290 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.16 STREET FLOWDEPTH(FEET) = .51 HALFSTREET FLOODWIDTH(FEET) = 12.66 A'-,'ERAG_= FLOW VELOCITY (FEET/SEC.) = 1.27 11 PRODUCT OF DEPTH&VELOCITY = .64 STREETFLOW TRAVELTIME(MIN) = 8.55.E TC(MIN) = 21.54 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.1.30 B01 L CLASSIFICATION IS "A" SINGLE-FAMILY((/4 ACRE LOT).RUNOFP COEFFICIENT = .7024 SUBAREA AREA(ACRES) _ .80 SUBAREA RUNOFF(CFS) 1.20 SUMMED AREA(ACRES) 2.00 TOTAL RUNOFF(CFS) = 3.76 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) _ .53 HALFSTREET FLOODWIDTH(FEET) = 13.34 ( FLOW VELDCITY (FEE T /SEC.) 1.37 DER,T H*VELOCITY .72 FLOW PROCESS FROM NODE 141.00 TO NODE 141.00 IS CODE 1 ---------------------------------------------------------------------------- )))>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) _ ;:1.54 RAINFALL INTENSITY (INCH./HOUR) = 2.13 TOTAL STREAM AREA (ACRES) = 2.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 3.76 FLOW PROCESS FROM NODE 140.70 TO NODE 141.00 IS CODE = 2 >))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<(<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/4ELEVATION CHANGE)?**.2 INITIAL SUBAREA FLOW -LENGTH = 450.00 Ur°STREAM ELEVATION = 1208, 00 DOWNSTREAM ELEVATION = 1206.50 ELEVATION DIFFERENCE = 1.50 -O_ _ . 3'33*C / 450. 00**3) / < 1. 50) I **. 2 = 14.147 2-5.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.741 S07L CLASSIFICATION IS "A" SI,NG;_E-FA,'711LY0/4 ACRE LOT) RUNOFF COEFFICIENT = .7.353 SUBAREA + UNDFF (CFS) = 1.81 TOTAL AREA (ACRES) = .90 TOTAL RUNOFF (CFS) = 1.81 FL OW PROCESS FROM NODE 141.00 TO NODE 141.00 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) = 14.15 RAINFALL INTENSITY (INCH./HOUR) = 2.74 TOTAL STREAM AREA (ACRES) = .90 -C+TAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.81 CDNFL UENCE INFORMATION: STREFan1 RUNOFF TIME INTENSITY NL+'FIBER )CFS) (MIN.) (INCH/HOUR) 1 15.05 15.19 2.627 ,= 12.00 23.40 2.027 3.76 21.54 2.130 4 1. 81 14, 15 2.741 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 87.83 2a. 53 28.4.2 25.56 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOP (CFS) = 28.53 TIME(MINUTES) = 23.397 TOTAL AREA (ACRES) = 17.20 FLDW PROCESS FROM NODE 141.00 TO NODE 140.00 IS CODE = 3 ---------------------------------------------------------------------------- >>))>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >))>>USING COMPUTER -ESTIMATED PIPESIZE )NON -PRESSURE FLOW)((((( ---------------------------------------------------------------------------- DEPTH OF FLOW IN 33.0 INCH F'IF'E IS 25.9 INCHES PIPEFLOW VELOCITY/FEET/SEC.) = 15.7 UPb ; r�tJ-!M NULL I-LfVH 3 I UN = I mob. ZOO DOWNSTREAM NODE ELEVATION = 1L-06.10 FLOWLENGTH(FEET) = 120.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 26.53 TRAVEL TIME(MIN.) = .35 TC(MIN.) = 23.75 PLOW PROCESS FROM NDDE 140.00 TO NODE 140.00 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) = 23.75 RAINFALL INTENSITY (INCH. /HOUR) = 2.01 'DTAL STREAM AREA (ACRES) = 17.20 -OTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 25.53 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---•------------------------------------------------------------------- 1 28.53 23.75 2.005 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 28.53 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 28.53 TIME(MINUTES) 23.747 TOTAL AREA(ACRES) = 17.20 END DP RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM----------------^- EASED ON SAN BERNARDINO COUNTY (SBC) 1583 HYDROLOGY MANUAL <(<(!!<cc<(((((!c<(ccicic<!!<<(C(<<c(()>>>>>3)3>>>>>3>3>3>}>>>)>))3>>>>>>>)> (C) Copyright 198E Advanced Engineering Software EAESJ Especially prepared for: HALL & FOREMAN, INC. <<<c(c(<<<<ccc<<ccc(!<(<cclC<c(c<c<<(!>3>>>)>>>>>3>>>>>33>>>)33>>3)3>>>>>>)> **********DESCRIPTION OF * FOOTHILL DRAIN HYDROLOGY, LINE 8 INCLUDING LATERALS C, E, G & H * 0 100 YR, NODE 162.3 TO NODE 606 * JN 3366, 12/7/1986 �E• •if• iE• �F• •1f• * * •Ji• •iE dF• dr dF •)E• •�• •iE dF dF •1F •iF dF *• it• •iE *• *• *• 9E• •�• •)6 •!F •If• *• •k 9E •!h iE -)E •IF �E iE• iE •If• •lE •iE• •IE• •lE• •le 9E• dE •k 9F jf• 9E• 9E aE *• •it-•lf• •iE• -1F •16 9E• iE •!E •iE• 9F •k iE •)E• ii• � •lE• iE �E• •it• i4• _.---------------.--------------------------•.---------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: - USER SPECIFIED STORM EVENT(YEAR) = 100.00 -- SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE _ .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED Advanced Engineering Software EAESI SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/85 (!<C<(<<(C<<<C<<(<<<<<C<Cl<<(!!(<<C(<<>>>>3>33>))3)33)>33>>>>>>>>)>))>3>>}}} FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- >)>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<(<! -_ ---------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 19.11 RAIN INTENSITY(INCH/HOUR) = 2.92 TOTAL AREA(ACRES) = 55.50 TOTAL RUNOFF(CFS) = 138.52 *•iF �E••)t• df• •iF •li•* * *-k• * •ii• •)F •!i• •�• * 9i• * * * aE * ** 9E• •x• dE• * * dC• •If• •iF •!E• * ** •li• •!E• * * *• * at• ae* * ** * ** iF •lE• dE•9i- •lE••li• •li• •li• * ** * * * * 9F *• *•if•!i••3i•9E• 9i•iE FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = i ---------------------------------------------------------------------------- >))>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCEC<<(( ------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM I ARE: TIME OF CONCENTRATION(MINUTES) = 19.11 RAINFALL INTENSITY (INCH./HOUR) 2.92 TOTAL STREAM AREA (ACRES) = 55.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 138.52 •!F •ii• # � •iF•k ii•� iE• dt• •)Ede• 9E• •li• •3i• •li• * � 9F •)i• �f• �E•-lE •k �F-R iE• �E•-1F •iE-lf•iE ii• •�• dE•x• 9E •iF •�• aF•1E iE dE• •lF •lF •�• a4.9f-9F •lF• •IF •3f• •!E• •!F �i-�i-iF •)EiE iE •ii- iE ai-•li••if• •3i• •li• •it• •N• � •lf• •!e• •li• •3F �F df• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<<( - - ------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.59 RAIN INTENSITY(INCH/HOUR) = 3.25 TOTAL AREA(ACRES) = 53.80 TOTAL RUNOFF(CFS) = 139.36 dF dE dE de• dE dE dE dE dt• •!f• di•# dE dE di• dE dE dE dE df• •it• dE dE dE dE dE dE dE dE dE dE dE dE dE dE dE dF dE dE• dE dE dE dE dE dE � dE dE dEdE dE dEdE dE dE dE dEdE dE dEdE dE�•dEdE dE dE dEdE •it -•11.11• •k9E •3f••le• FLOW PROCESS FROM NODE 198.00 TO NODE 196.00 IS CODE = 1 >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( >>)>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM ` ARE: --- TIME OF CONCENTRATION(MINUTES) = 15.99 RAINFALL INTENSITY (INCH./HOUR) = 3.25 TOTAL STREAM AREA (ACRES) = 53.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 139.36 CONFLUENCE INFORMATION; STREAM RUNOFF TIME INTENSITY NUMBER ---------------------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 138.52 19.11 2.920 P 139.36 15.99 3.250 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR E STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 263.75 255.26 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 263.75 TIME (MINUTES) = 19.110 TOTAL AREA(ACRES) = 109.30 d6•�• dEdf dE•dF dE•T• dE di• dE dE dE dE drdE dE• dE dE dE dE dE dE dE dE dEdE de•-� dE dE dF df• dE dE df-dE dE dEdEdE dEd6 dE dE dE dE dE dE dEdr dEdE dE dE dE dE dE dE dE dEdE •%• dE dE dE dE dE dE dE •�•�• dE # •K• dE FLOW PROCESS FROM NODE 198.00 TO NODE 198.50 IS CODE = 3 >> M COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<(< )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((< DEPTH OF FLOW IN 66.0 INCH PIPE IS 53.3 INCHES - PIPEFLOW VELOCITY(FEET/SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1256.50 FLOWLENGTH(FE:ET) = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 263.75 TRAVEL TIME(MIN. ) = .19 TC(MIN. ) = 19.30 �-��*dEdEd(•dEdEdEdEdEdi•dFdEdEdEdEdr•lEdE�*�*�����*���**�*���*��*�����*�����*���*�������-dEdEdEdE•IEdEdEdE FLOW PROCESS FROM NODE 198.50 TO NODE 198.50 IS CODE = 1 ---------------------------------------------------------------------------- 1>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.30 RAINFALL INTENSITY (INCH./HOUR) _ 2.90 TOTAL STREAM AREA (ACRES) = 109.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 263.75 •!6 * * * * it * d6 9i• * * 9F if• •F-* * * di• * •�• * * * * •li-•li-iE• •!f••k �f••k• dE di••#• •x• * * * * * iE• 9i• �f• •�• •1t• •k de••R• * * 9E• •iF •x•-►i•-lf• * •iE iE• 9F 9i -9i• •If• iF•-lf• •ii• * * •� * 9E-�• **•iE �i••�• FLOW PROCESS FROM NODE 198.10 TO NODE 198.10 IS CODE = 2 ---------------------------------------------------------------------------- >>)))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<((<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: CONDOMINIUM TC = K*L(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW -LENGTH = 700.00 UPSTREAM ELEVATION = 1272.00 DOWNSTREAM ELEVATION = 1268.00 ELEVATION DIFFERENCE = 4.00 TC = . 359* 1 ( 700. 00**3) / ( 4.00) 3**. 2 = 13.867 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.540 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7878 SUBAREA RUNOFF(CFS) = 6.41 TOTAL AREA(ACRES) = 2.30 TOTAL RUNOFF(CFS) = 6.41 iE*****•�*�i•*�i•********•lE•*********************ii•***********•ti•**•�f•iE•****•ii•*•k•******-lf•**** FLOW PROCESS FROM NODE 198.10 TO NODE 198.00 IS CODE = 5 >>>>)COMPUTE TRAPEZOIDAL -CHANNEL FLOW<((<< >>)>,>TRAVELTIME THRU SUBAREA<(<(< UPSTREAM NODE ELEVATION = 1268.00 - DOWNSTREAM NODE ELEVATION = 1257.50 CHANNEL LENGTH THRU SUBAREA(FEET) = 800.00 CHANNEL SASE(FEET) = 20.00 "Z" FACTOR = 2.00141 MANNINGS FACTOR = .015 MAXIMUM DEPTH(FEET) _ .50 CHANNEL FLOW THRU SUBAREA(CFS) = 6.41 FLOW VELOCITY(FEET/SEC) = 2.90 FLOW DEPTH(FEET) TRAVEL TIME(MIN.) = 4.60 TC(MIN.) = 18.46 FLOW PROCESS FROM NODE 198.30 TO NODE 198.50 IS CODE = 6 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<(( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.961 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7762 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 6.94 TOTAL AREA(ACRES) = 5.30 TOTAL RUNOFF(CFS) = 13.36 TC (MIN) = 18.46 if••1E********************************•li•**at•*******•iE***•)i-*-ti•********•)t•******•)E•**•iP***** FLOW PROCESS FROM NODE 198.50 TO NODE 198.50 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) = 18.46 RAINFALL INTENSITY (INCH./HOUR) _ 2.98 TOTAL STREAM AREA (ACRES) = 5.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 13.36 CONFLUENCE INFORMATION: STREAM RUNOFF NUMBER (CFS) ------------------ 1 263.75 2 13.36 TIME INTENSITY (MIN.) (INCH/HOUR) ----------------- 19.30 2.90:3 16.46 2.961 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR S STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 276.75 265.61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 276.75 TIME(MINUTES) = 19.305 TOTAL AREA(ACRES) = 114.60 FLOW PROCESS FROM NODE 198.50 TO NODE 80.00 IS CODE = 3 >))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<(<< DEPTH OF FLOW IN 69.0 INCH PIPE IS 53.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.8 UPSTREAM NODE ELEVATION = 1256.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED F'IF'E DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 276.75 TRAVEL TIME (MIN. ) _ .52 TC (MIN. ) = 19.83 * ar at• �• � •k• •)i• �• •� � •� •1i••!E• at• •x•-�• iF• •k ar •iE •�• � � dr ii••�E �• •� •�F•)E• � •It -it• •�• �E-� •� •)E• •lE• •)E• iE �E• �F �f• �E •k• �-iE �F •� •lE •IE �f•-►EaFIE• •�E• �f••�F �E •k•lf• �••li• •)t• •lt• �F•�r •� •lE• •�i-�F �E�E •IE• �k FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = e ---------------------------------------------------------------------------- >>>)>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<((<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.857 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7395 SUBAREA AREA(ACRES) = 5.50 SUBAREA RUNOFF (CFS) = 11.62 TOTAL AREA(ACRES) = 120.10 TOTAL RUNOFF(CFS) _ :88.37 TC (MIN) = 19.63 �f• 9F •k •�• � •k •1r et• •!i• •� •3f• •� if• �E• �i•dE �E�t--IE• •� •k •lf• •)E• •k aP •�i• �f• •iF• •iE• �f• �F •if--�i• �E-k-•li••1e• 9t• •� �• �i••�i••li• •�i• �E• dt•�f-•iF �f• •rF �E• jt•-� � •3i•iE �• �f• �i• •!E•a6•k iF •�i••3t• •fie• �• •iE• •k •�i••�f• iF •i�• •ii• �F• �E• FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<( >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((( DEPTH OF FLOW IN 60.0 INCH PIPE IS 44.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 980.00 MANNINGS N = .013 ESi•IMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 288.37 TRAVEL TIME (MIN. ) _ .88 TC (MIN. ) = 20.70 ii• •)E• # # •lE• di• •ii• •It• •x• �i•�E• •fc •k• •x• •iE •�• # •� •)E• •k •li• •ii• •x-•)i--li• •li• �F••!t-at• •)t• �E• •IFiF•dF-IF �F •)E• -lE jE•� 9E• •i� •�• •ii• aF •ii• 9F•* •1E aEdE•li• �•ii-•�i•if• •k•k•3E •iE •3i••iE••1E If• •k•�i• •!F �E••)i• •�i-•IE �t-•IE-x• •if• •1F FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<( ----------- 100.00 YEAR RAINFALL INTENSITY(INCH/H DUR) = 2.734 SOIL CLASSIFICATION IS ''A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7370 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 16.6E TOTAL AREA(ACRES) = 128.20 TOTAL RUNOFF(CFS) = 304.99 TC(MIN) = 20.70 iE ai• •ii• •1E• •iF •Xr •le-•�• iE •k �li� •li--lE• �i• iE •16 �i• 9E• * •l� •!i• •i� -1(• 9E •k• •�• •k •!E• •li• �E •!E• •iE •iE 9E •1F �i- �k-1E dF •� •!t• �f•* •lE• �14• •!F •iF •!f• -!f• it• iF �E• •)F• �1E jE• iF �e iE• •Ii• •)f• �i• •k •k dF •3t �i• fie• �f• •fie• •lE• iE •3E 9F •iF 9i- •k• FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 -------------------- )>)))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.784 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7370 SUBAREA AREA(ACRES) = 11.80 SUBAREA RUNOFF(CFS) = 24.21 TOTAL AREA(ACRES) = 140.00 TOTAL RUNOFF(CFS) = 359.20 TC(MIN) = 20.70 •�• aE •lek•!f• di• •k• •3f•9E 9i• jE •li• •1i• 4F iF 9f• jE• �iE• if •1F 9F •li• •if•9E• •!E• iF �E••)E dt•-x• 9E••!N •�•� •x• iE• �• dt• •IE •!E jE •iE• ji-•lE• •It •!F •iE• •!t� •kdE 9E-lE if• •!i• it-iE �f• •IE• •tE ii• 1E• •le•dE iE 9E• •lr-IE�-�• •lE• •1F •lE• •lE iE ii• �lf••lE FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 ))>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((<<< )>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)C((<< DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 20.1 UPSTREAM NODE ELEVATION = 1238.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF WIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 329.20 TRAVEL TIME (MIN. ) = .58 TC(MIN.) = 21.28 FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- >)))>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< --------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.738 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7351 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 21.13 TOTAL AREA(ACRES) = 150.50 TOTAL RUNOFF(CFS) = 350.33 TC(MIN) = 21.28 �•3i• 9E •lE• dF 9F 9E-1E�E• iE •ii• ii• •!i• •1r iF •1E• aE if• •iE• iE �i•* •lE• •1F iF �k•k af• •IE •k •If•dE •�••3E •)i• •1f• •iE•-If• •lE •if• iF iE• ai••ii• df• •k• di•-� •!i• � dE �f• it --k iF •It •k•� %•k• •K• iE• �If• •k •k •3E •iF •!E• ai-•ii• iEiE•9F•iE •1F•K FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 5.738 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7351 SUBAREA AREA(ACRES) = 10.20 SUBAREA RUNOFF(CFS) = 20.53 TOTAL AREA(ACRES) = 160.70 TOTAL RUNOFF(CFS) = 370.86 TC(MIN) = 21.28 � •iE iE •iE �� �• � de• dE• ii• dF � iE• •!�� •k dE iF �• •x-�x• •)E 9E• � •�•� dF-1F •lF •k••lE i�• 9E• •�•�F �E• •�••fE• iE •lf•-k iE •lF�E-k �)i•dE�ii-i6•k• di• � •k •3f••�t-�E• �E �E i� •�•�e•�E�• •�i• �3i��E •it� •�-lf-iF iF•lf-•k •If• �ii• FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE = 3 _---_--_--- >>)))COMPUTE PIPEFLOW TRAVELTIME THRH RHBAREA<<<<< >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<((( DEPTH OF FLOW IN 66.0 INCH PIPE IS 52.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.3 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 370.86 TRAVEL TIME(MIN. ) _ .44 TC(MIN. ) = 21.72 FLOW PROCESS FROM NODE 110.00 TO NODE liO.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: - TIME OF CONCENTRATION(MINUTES) _ :1.72 RAINFALL INTENSITY (INCH./HOUR) = 2.70 TOTAL STREAM AREA (ACRES) = 160.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 370.86 FLOW PROCESS FROM NODE 110.10 TO NODE 110.50 IS CODE = 2 ---------------------------------------------------------------------------- >>>))RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((( ASSUMED INITIAL SUBAREA UNIFORM - DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)?**.2 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1256.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 6.70 TC = . 393* C ( 400. 00**3) / ( 6.70) 7 **. 2 = 9.772 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.367 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7780 SUBAREA RUNOFF(CFS) = 6.83 TOTAL AREA(ACRES) = 2.60 TOTAL RUNOFF(CFS) = 8.63 FLOW PROCESS FROM NODE 110.20 TO NODE 110.00 IS CODE = 3 >>)))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>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.) = 8.8 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 8.83 TRAVEL TIME(MIN.) _ .13 TC(MIN.) = 9.90 FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ---------------------------------------------------------------------------- >>))>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(<<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 4.332 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7774 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) = 21.22 TOTAL AREA(ACRES) = 8.90 TOTAL RUNOFF(CFS) = 30.05 TC (MIN) = 9.90 •li• •�• •1F •ii• •�• * •ii -•)t• •)E• iE •)f• •ii• •k iF.�• •!F •1� •!t• •)i• •ii• �f• •)E• •!6 •�E •)E �IF• aE• •k •x• jE• •iE aF •3E •tE •ii• •iF iF �iE �E �1t- •3F -1E # ��i• jE •if •1F •k• �IE• •IE •16 •if� �i• •�• •ii• •)i• �ii• •#E iE• �i• ��E �E •K• •tF• •!F �i• •�• aF �#f-•lE• •�i• •k• iF ji•-iF •�• FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 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) = 9.90 RAINFALL INTENSITY (INCH./HOUR) = 4.33 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 30.05 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------------------------------- 1 370.86 21.72 2.704 2 30.05 9.90 4.33E RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 389.62 199.14 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 389.6E TIME(MINUTES) = 21.722 TOTAL AREA(ACRES) = 169.60 •1r -lE •lE•if• •3E• 9E• iii• iF •IE• •)r � •li• * # •If•iE iFii• •� it •k• •If• * •!F 9F •lf• �E-•!t• •)F � •3i••iE• �F •�-1F �e• iE• 9E dE it dE 9E•�E dF •� •x-•�• •1E-�•k �E•�EiE• •x• 9i• •IF• •kdE •Ii• di-•ir•k 9E• dF •R� •iE• 9i-•fi� •k�E• jE• # •R •ii -•Ii• FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 )>>>}COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<< )>>))USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<(<( DEPTH OF FLOW IN 84.0 INCH PIPE IS 63.7 INCHES - PIPEFLOW VELOCITY(FEET/SEC.) = 12.4 UPSTREAM NODE ELEVATION = 1216.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH (FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 389.62 TRAVEL TIME (MIN. ) = .97 TC (MIN. ) = 22.69 * dE �i• � •k •if• ii••)i• �(-•!F �• iE•iE• •li• •)E-lE•-lE•-� •k• •k -•it• jE• •iF•lF•i6 •IF iE• !F R•IFIf• •k• 9E•�t• •)f• if••lf••!FiF •!f• �f• di• x• �i-•�• ir 1E••3E •It-iE• iFaf• •3i• •k •�i•iE•af• •!t-�•le• •�E-•IE 9E• •iF•If• ii• •kdf• •iE fit• �• jE--kie• �f•iE FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- )>)))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) _ 22.69 RAINFALL INTENSITY (INCH./HOUR) = 2.63 TOTAL STREAM AREA (ACRES) = 169.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 389.62 iE• •x• •x• #• dE• •x• •iF •IE � � 9E iF �• iE �f-�i•-li--lf• •i6 •)f• •k jf• •ii• iE •�• if• •)E• �iE• •!i -•!f• •1i• •k �li� �if• •3i-�E aF�F •lE• •le-•iE •ii• •IE •R-�F•dF 9F di�•le• �ii�9E• �f• •!F •!i• •k•i(• •R •k -1r •li• •li• �F-lt �t•-)i--?F•li•-le• � �i• •lE• •li• •I6 •lf• �ie• •if• FLOW PROCESS FROM NODE 120.00 TO _NODE 120.00 TS CODE = 7 ---------------------------------------------------------------------------- )>>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<(<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 13.72 RAIN INTENSITY(INCH/HOUR) = 3.56 TOTAL AREA(ACRES) = 34.40 TOTAL RUNOFF(CFS) = 77.37 *4f•****•li•iE•********•ii••lF•*•k•�•*•iF•�•******iF•�••�••i#••lF•df•**-1E****•IE•*****•IF-it•*�•14•1E•****•tF••1i•*•li-•k***•li••ii•i6*�*-�•lt••1E FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>?>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 13.72 RAINFALL INTENSITY (INCH./HOUR) = 3.56 TOTAL STREAM AREA (ACRES) = 34.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 77.37 **•x•#••li•9E•aE•9i••k•*•k*•IE••1i•dF•1r**•lf•**�E***•�••li•*•lf*•IE•***•lE•**�6**•iE••k*if•*•x•�•***iF*****-1E•iE*•k•**•x•�F•K••�•-Ir*•li••1i•****•!E FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 2 -------------------------------------------------------------------------•--- )>)>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*E(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW -LENGTH = 720.00 UPSTREAM ELEVATION = 1221.60 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 6.40 TC = . 393* C ( 720. 00**3) / ( 6. 40) J **. 2 = 14.032 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.515 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7605 SUBAREA RUNOFF(CFS) = 1.60 TOTAL AREA(ACRES) = .60 TOTAL RUNOFF(CFS) = 1.60 di•*******•R•�i•*•If••)F•it••1f•**•)E•*****iE•K••iE••iE•*****•IF********-li-•li•**�i•****iFii•*•k•�i•***•k•)E•*•k•9i•*•ii••�E**R••!E••!t•*•k•**•1f• FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = i ---------------------------------------------------------------------------- >>>)>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.03 RAINFALL INTENSITY (INCH./HOUR) = 3.52 TOTAL STREAM AREA (ACRES) = .60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.60 iE•*********9E•**********************•x•*•u-*****�***-lE•***•)E•k-•iE•if•**********•x•*de-•li•**•ii•*•)F••iE-*•1E•* FLOW PROCESS FROM NODE 120.30 TO NODE 120.00 IS CODE = 2 ---------------------------------------------------------------------------- >)>>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<(<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE))**.2 INITIAL SUBAREA FLOW -LENGTH = 600.00 UPSTREAM ELEVATION = 1217.60 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 2.40 TC = . 393*C ( 600. 00**3) / ( 2. 40) J**. 2 = 15.304 100.00 YEAR RATNFALL TNTFNPTTY(TNtrH/HtnuR) = 2-117 SOIL CLASSIFICATION IS "A'. SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7557 SUBAREA RUNOFF(CFS) = 1.26 TOTAL AREA(ACRES) _ .50 TOTAL RUNOFF(CFS) = 1.86 •�-� •�• a� �a� �-�• ae•ai• •r� •x• •li••li• ai• •tt• •� •x••� •� •��• •� •� � �• �• �• �• �• •kae-� �-•��• •� •x••�• �-•� •ii• � •x-ai• �• •x• •�-� �• •l� ai• •� � •� ae• �• •�-•��• ai• �•-�••�-�•�••��• •�i-•�i• •� •� �i• �• � �i• •� •� FLOW PROCESS FROM NODE 120.00 TO NODE 10.00 IS CODE = i ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<( )>>))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<<(( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 15.30 RAINFALL INTENSITY {INCH./HOUR) = 3.34 TOTAL STREAM AREA (ACRES) _ .50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.26 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) ----------------------------- 1 389.62 22.69 L 77.37 13.72 3 1.60 14.03 4 1.26 15. 3144) INTENSITY (INCH/HOUR) --------------- 635 3.563 3.515 3.337 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 449.03 315.69 320.07 338.07 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 449.03 TIME (MINUTES) = 22. 667 TOTAL AREA(ACRES) = 505.10 •►E •� •� •��• �• �• �•�• aE •1E•ii• � •��• ai• �• �•�• �• •� �• •� •li• it •�•�••� •� •ie• di• �• •►r •� •li•-� •� �• �• •�-•� •k•ii• •1i• di••k •li• •ii• •� •� �• •*-x• •� •��•�• it •� �� � �• •��• �• •� � �• iE � � •k •� �• � •� •�•� FLOW PROCESS FROM NODE 120.00 TO NODE 140.00 IS CODE = 3 Q >)>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< )>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 69.0 INCH PIPE IS 55.9 INCHES PIPEFLOW VELOCITY (FEET/SEC.) = 19.9 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 449.03 TRAVEL TIME (MIN.) _ '50 TC (MIN.) _ 28.13 �c••�•�•�••�•�•n••jai••��••��-•�i•�••�a�•��•�••��-•�•�•�•�••�t••�•�•�•x•�-t��••�••�•�•�•�i••�i•�•ai•�•ai•�••��••��--�e-�•�-•�•�•��••�•�•��•aE-�-•��••��••��••��••�i•�•�i•*�••�-�a�••r•.�-�•�• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) _ 23.19 RAINFALL INTENSITY (INCH./HOUR) = 2.60 TOTAL STREAM AREA (ACRES) _ 205.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 449.03 FLOW PROCESS FROM NOW _ 140. 00 TO NODE' 140-00 IS cnDr= = 7 ----------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<((<( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.47 RAIN INTENSITY(INCH/HOUR) = 3.19 TOTAL AREA(ACRES) = 23.80 TOTAL RUNOFF(GFS) = 58.95 �f• •�E• it •k di••�• •iF •IP -1r aE• 9E •li• 4i• iE•ii• •lk 9E• •3E •�••1F •k •�•iF •k• * * � •)f-�E• ii• •!E •!�• •� •ii- iE• •!F •k �i••ii• 9i• •iF• 9f-�E• di-•1f••!f• �••�•-li• •li• �t-ii• ii• •k-lt ie •�• •3i• •it -di• •li• •k •li• •li• •li• •if• •3E•-li• •li• •it �•iE •iF •!i• •k #. . FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ------------------------------------------------------------•---------------- >))>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<(< ---------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM L ARE: TIME OF CONCENTRATION(MINUTES) = 16.47 RAINFALL INTENSITY (INCH./HOUR) = 3.19 TOTAL STREAM AREA (ACRES) = 23.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 58.9,.5 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 23.60 RAIN INTENSITY(INCH/HOUR) = 2.57 TOTAL AREA(ACRES) = 17.50 TOTAL RUNOFF(CFS) = 37.7; •x• aF •lE••x• ii•�• •Ji� 9E•-lE• iF �i• dE-lr � •x-96• •!t• •3i• 9i• •iE• �i• •* �E dE• •kms •iE � •�• � � 9i• i� 9F # •x• •IF• •lE• •16 # •iF •k• dE •k-•lt• ar •1F •if• it-•lF •k �ie• •1F• •rE• �E 9i• •x• •)E••3F •� •k•�• •fit• dE �t•-le •lr •)E• •R• �i• •tF �i•-�t••lt• �F �i• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 >)>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<(<(( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE; TIME OF CONCENTRATION(MINUTES) _ 23.60 RAINFALL INTENSITY (INCH./HOUR) = 2.57 TOTAL STREAM AREA (ACRES) = 17.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 37.72 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ---------------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 449.03 23.19 5.600 56.95 16.47 3.193 3 37.72 23.60 2.573 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 534.11 404.20 529.55 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 534.11 TIME(MINUTES) = 23.189 TOTAL AREA(ACRES) = 246.10 � 9F •� 9P969t •it• 9i• 9r 9P 9t• 9E 9E 9E •� 9F 9f• 9b 96.96 96 •� •� 9E• •� 9F 9E 9r 9F � �• 9F 969E 9F 9E 9E •� 9E 9r 9E 9r 9b9f• 9r �f•�-•k •!i- •x• •1E• �F •�F �i• �• fie• •I��F •ii• if• •x-•� •lE � �EiE 9i• �F •)i• #• ie••�F •!F• di••�i�E• FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 -------------------------------------------__------------------------------- >>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<(< )>>>>USING COMPUTER -ESTIMATED PIPESITE (NON -PRESSURE FLOW)<(<<< DEPTH OF FLOW IN 81.0 INCH PIPE IS 63.E INCHES ` PIPEFLOW VELOCITY(FEET/SEC.) = 17.8 UPSTREAM NODE ELEVATION = 1206.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(F=EET) = 620.07 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INC:H) = 81.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA (CFS) 534.11 TRAVEL TIME (MIN.) _ .58 TC (MIN.) _ 23.77 END OF RATIONAL METHOD ANALYSIS t RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (BBC) 1383 HYDROLOGY MANUAL <C<(<(<<<(<<<<<<<<<(<(<<<(<(<<<<C<<(<(>>>)>SS))>))>>>)))>>S>}S)>)}S>>>>)I>>> (C) Copyright 1382 Advanced Engineering Software EAESJ Especially prepared for: HALL & FOREMAN, INC. **********DESCRIPTION OF * FOOTHILL DRAIN HYDROLOGY, LINE 8 INCLUDING LATERALS C ,E , G & H * 0 25 YR, NODE 162.3 TO NODE 606 * JN .3366, 12/7/1986 --------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .35 10—YEAR STORM 60—MINUTE INTENSITY(INCH/HOUR) _ .380 100—YEAR STORM 60—MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1—HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 SEDC HYDROLOGY MANUAL "C"—VALUES USED Advanced Engineering Software EAESJ SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/$5 •IE••if•*•k�i•*•k*•if•*•)F•�t***•iE•**iE•**•1F•k•*•�E•***aE**•li••3i•*•li••)E•*•ii•*lE*******-1F*****�E•*•k**•iF•lF*if••1fli••x*•�•�E ***•k•**** FLOW PROCESS FROM NODE 138.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- >))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<(<( USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 13.42 RAIN INTENSITY(INCH/HOUR) = 2.27 TOTAL AREA(ACRES) = 55.50 TOTAL RUNOFF(CFS) = 104.37 *•�-***di-•lf•*aE••1F•li•at•-��•**at•*-�t•*•***�••�*�-a�•***�••�a�*•ae••�**•�****•�***�••x•�t•*•x***a�***�•*•�•a�•a�•***•�•x••�***** FLOW PROCESS FROM NODE 198.00 TO NODE 138.00 IS CODE = 1 ------------------------------------------------------------------••------------ ))))}DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<((< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 15.42 RAINFALL INTENSITY (INCH./HOUR) = 2.27 TOTAL STREAM AREA (ACRES) = 55.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 104.97 -lE• •lF •it di• -1E• �i• •k••k• ii• •lt• •IE• •lE• •3i• •lE• •li• �f• it•iE •k � ii- iE •R• iE• •x• •# � dE •li• •k dF jE• •k• •IE• •)f• if• 9f• •li• 9i• �E• �E• •�• � •k •iF •lE•R •li• •�• •�• •li• •If• •k de- •li• dt• •if• aF 9r 9f• •Ii• •�• �• •!r #• #• •iE •ii• •k• •li• �i• iE• •�• •3i• ai• 4F FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- >?>))USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<(< USER-SPECIFIED VALUES ARE AS FOLLOWS: - --- TC(MIN) = 16.11 RAIN IN'fENSITY(INCH/HOUR) _ 2.54 TOTAL AREA(ACRES) = 53.80 TOTAL RUNOFF(CFS) = 106.27 •)E• •?f• •lE �f• •k• •!t iE•)F •3t• •lE•-k-ii• •ie• 9i -9e -•le• •k •1F•iE db •if•-li• •1F •!F•x••li• •�• •�• aF if• •16 •iE •li• •tE•li• •)f• •16.3F•iE •!E iE• •le• iE •ii• •k •iE •If• •!i• 4t••!F it• iE jf• •JE •Ir iF •lE iF •If• •1f• •1E• -1i• jf• fit• •)f• •ii• 4E• •IE• •)t• ii• •!i• •R• i6 �• dF i(• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = i >?>)!DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< >>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: - - TIME OF CONCENTRATION(MINUTES) = 16.11 RAINFALL INTENSITY (INCH./HOUR) = 2.54 TOTAL STREAM AREA (ACRES) = 53.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 106.27 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 104.97 19.42 2.267 2 106-27 16.11 2.53G RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 199.97 193.35 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 199.97 TIME(MINUTES) = 19.420 TOTAL AREA(ACRES) = 109.30 •k •!i• �• dE• di•�• •x•4F •*• •tE• •iE •ii• 9E• �• •k •k#•x• •k •k •li• •k •li• •k •IE •K• •)P iE 9E• •3i••if• � •lE dE• ii• dE• •)f-dt• •Ii• •ii• •k••iE• •li• �i-�F •3i• •�-iE• iF •1t•9i• •k• •!i• # •ii -•!E• •1t• •1E• •k• •li• iE• •� •1F •lf• •1F # if• •ii--1� aF• # •fE •li• �i• •X• iE FLOW PROCESS FROM NODE 198.00 TO NODE 198.50 IS CODE = 3 -.....-----------------------------------------•--------------------------------- ?>>>)COMPUTE PIPEFLOW TRAVELTIME: THRU SUBAREA(<<<< )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<((<( DEPTH OF FLOW IN 60.0 INCH PIPE IS 47.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 12.0 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1256.50 FLOWLENGTH(FEET> = 150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 199.97 TRAVEL TIME(MIN.) = .21 TC(MIN.) = 19.63 �•9E••k •!E •ii-•ti•-%••iF• it• 9i• •!i••Ii• •)i• �i•-k• •IE •ti• •x• •}� •k d6 •li• •k •lE• •!f• •3f• 3F •iE •!F 4E •�• •!i• •tE• #•IF 9E• •k •)F -1P �b •)F •!f• •iE � •li• dE # •li• •x• -x• •le• •3i• iE• dEd4 •iE• •ii• ai• •!E• •li-iE •tE• •k• •k• �E• it• •lt•-lE 9F * •ii• •IF di• •ii• •IF •lE FLOW PROCESS FROM NODE 138.50 TO NODE 198.50 IS CODE = 1 ---------------------------------------------------------------------------- >)>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.63 RAINFALL INTENSITY (INCH./HOUR) = 2.25 TOTAL STREAM AREA (ACRES) = 103.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 199.97 ########ii•#•�E•#####*########*##•1F•#####*#•3E##•ie•�i•############•k####•lE###�E•dE###*di•#-k##### FLOW PROCESS FROM NODE 198.10 TO NODE 198.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<(< ASSUMED INITIAL SUBAREA UNIFORM - - -- DEVELOPMENT IS: CONDOMINIUM TC = K#[(LENGTH**3)/(ELEVATION CHANGE)?**.2 INITIAL SUBAREA FLOW -LENGTH = 700.00 UPSTREAM ELEVATION = 1272.00 DOWNSTREAM ELEVATION = 1266.00 ELEVATION DIFFERENCE = 4.00 TC = . 359# L ( 700. 00**3) / ( 4. 00) J **. 2 = 13.867 20.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.774 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7706 SUBAREA RUNOFF(CFS) = 4.92 TOTAL AREA(ACRES) = 2.30 TOTAL RUNOFF(CFS) = 4.92 FLOW PROCESS FROM NODE 198.10 TO NODE 198.00 IS CODE _ 5 ))>>>COMPUTE TRAPEZOIDAL -CHANNEL FLOW(<((( >>>>)TRAVELTIME THRU SUBAREA(<<(< UPSTREAM NODE ELEVATION = 1268.00 - ------ DOWNSTREAM NODE ELEVATION = 1257.50 CHANNEL LENGTH THRU SUBAREA(FEET) = 800.00 CHANNEL BASE (FEET) = 20.00 "Z" FACTOR = 2.000 MANNINGS FACTOR = .015 MAXIMUM DEPTH(FEET) _ .50 CHANNEL FLOW THRU SUBAREA(CFS) = 4.92 FLOW VELOCITY(FEET/SEC) = 2.22 FLOW DEPTH(FEET) TRAVEL TIME (MIN. ) = 6.00 TC (MIN. ) = 19.86 ###***#***#*#*�E•*#•iF•�•##iE*##*#iF*#*•!i-•1E•#**•1E•iE*�E••�-*#**#*###**iE*#*#•k•*�f•*#•�6#*•lE•*****#**#iE FLOW PROCESS FROM NODE 198.30 TO NODE 198.50 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAT FLOW<(((< 25.00 YEAR RAINFALL INTENSITY Q NCH/HOUR) = 2.236 SOIL CLASSIFICATION IS "A" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .7516 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 5.04 TOTAL AREA(ACRES) = 5.30 TOTAL RUNOFF(CFS) = 9.96 TC(MIN) = 19.86 #•iE•####9E•#######•lf•#####9i•#####•IF•#####•)i•##•3i•########*###•IE•#######•1E•##-IE•####•1E•#•li•#####•iF### FLOW PROCESS FROM NODE 198.50 TO NODE 198.50 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) = i9.86 RAINFALL INTENSITY (INCH./HOUR) = 2.24 TOTAL STREAM AREA (ACRES) = 5.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 9.96 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER ---------------------------- (GFS) (MIN.) 1 195.97 19.65 2 9.96 19.86 INTENSITY (INCH/HOUR) --------------------------- 2.252 --------------------------2.252 2.236 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 209.81 208.50 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS; RUNOFF(CFS) = 209.81 TIME(MINUTES) = 19.628 TOTAL AREA(ACRES) = 114.60 •� •k•-�i-•�E �� •� � •� � at• �• •�•� •��• af• •� •� �•* •� •� •x• •�• �-•� �t• �• •� •� aF•�• •K-•� •�•� •x• •� •� •x••�-x-•�t• �-� �i• •x• •�•� •t� �• •�•��t• •� •x• •x• •�t• � •� •� •rF �••� •!t• •!t• •��• •� •�-� �t• •x• •t�• •� •�i• FLOW PROCESS FROM NODE 198.50 TO NODE 80.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW>((<(( - --------------------- DEPTH OF FLOW IN 63.0 INCH F'IR'E IS 47.0 INCHES PIPEFLOW VELOCITY(FEET/SEG.) = 12.0 UPSTREAM NODE ELEVATION = 1256.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA<CFS) = 209.81 TRAVEL TIME(MIN.) = .56 TC(MIN.) = 20.18 dE••3E• •�••tt• 4E••)t-dF9F• •!E dE-!t• ii• iE•�F •k�• if••k de• •)E •Ii• 9F •IE•9F•Ii•-14• %if• iE• •iE• •li• •lF iE• •!6 iE• df• •iE •k •k•if•�F•!f•-lE• •�F• •iE• �E-K• •k iE••x• •K• •if •iF � •1E•�••lf• •!F •)i••1t• � �E •k iE •!F •k * •lE ii• �f• •IE•iE •!e• �# •1i• 9E FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>)>ADDITION OF SUBAREA TO MAINLINE PEAL: FLOW<<(<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 2.215 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7080 SUBAREA AREA(ACRES) = 5.50 SUBAREA RUNOFF(CF•S) = 8.62 TOTAL AREA(ACRES) = 120.10 TOTAL RUNOFF(CFS) = 218.43 TC (MIN) = 20.16 •1E• dr •!f• •if••!F •1E• 9F it �E• •ii- •k •k -•if• iE •ii•iF •iE• •k iE• •if• •!f• •16 •lE •l�E• •lf• ii• •i4• •!f• •k• iF •lE •)E• •!E• •)f• •)E• •if• •3E• •iE• •!E• •)f• •3t• •iE• •lE•)F• iE ii• •1i• •!E• •K• •If• •li• •le• •IE -lE -)E •k dP •)F• •iE •3t• •R iE •)E• •ii• •k •16.1r -lE •lE •li• •3f• -)f• •if• •lf• •)E• 9E FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<(<( >>>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(<<< DEPTH OF FLOW IN 54.0 INCH PIPE IS 39.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.4 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 980.00 MANNINGS N = .013 ESTIMATED RIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 218.43 TRAVEL TIME(MIN. ) = .94 TC<MIN. ) = 21.12 if• •lE if• •1i• •1t• •16 •iE••if• •k• df• •1f• 9E 9E••K• •!E ie •k �E• •lt-iE •iE •)(•-li• •lE •k• •k• �i• af•� •lE •x• •k-dF jf• � •)t• iF •!F if• df• 9E• •)(• •IE• �F• dE 9i• #•)E• •x• 9E •x•# •!E iF•iE�r •lE• dE #•)t• •!E•IE• •)f• �f• •li• •lE 9t••!t• 9r •�• �P �F iE ii• •lf• fie• FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE _ $ ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) _ 2.155 _ - SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7041 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 12.29 TOTAL AREA(ACRES) = 128.20 TOTAL RUNOFF(CFS) = 230.73 TC(MIN) = 21.12 •lE at• if••k-ii•-k •k•ir-IE• �iE••ii• 9i• •li• �f•-!i• iF •iF iF •�•-R• �r de -at• •iF •k •li• •)E• �i• •�iE •1t• iE •3E• ie• •k •k• •k iF ii-iF •lf•�F•�E• •lE• iF �f• if• �F �F �f• •�• �E••)(• •IF 3i• dc•i� •3e� dE •li• •)t df• •If• •3t-�• •k •3F 9F iF• •3i••k •IF •1f• iE �i• •k FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >>))>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.155 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7041 SUBAREA AREA(ACRES) = 11.60 SUBAREA RUNOFF(CFS) = 17.91 TOTAL AREA(ACRES) = 140.00 TOTAL RUNOFF(CFS) = 248.63 TC(MIN) = 21.12 FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<(< >>>))USING COMPUTER -ESTIMATED PIRESIZE (NON -PRESSURE FLOW)<((<( DEPTH OF FLOW IN 54.0 INCH PIPE IS 42.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 1236.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED RIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 248.63 TRAVEL TIME(MIN.) = .62 TC(MIN.) = 21.75 •lE9E •ii• •1e• 9E•iE• df••iF -IF •!E iE•� •k•9i• 4F�i• 9E• •)E •IE •k af••!F •)F• •lE •R 9E••)F•x•iF 9F�9F �t• it• ->t•!(• •iE• �E• •>E •1(9E •lE• if• •lt-•!E• •it• •1F-li• •lf• �f• 9E•�E �f• dE �E•-lf•-lE••iE •!f• •iE• •1i• iE •k �f• iE 96iF •k di• �E �F if•-lE •R• •lf• ii• FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ------------------------------------------------------- --------------------- >)>))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<((<( -------------- 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.118 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7015 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 15.60 TOTAL AREA(ACRES) = 150.50 TOTAL RUNOFF(CFS) = 264.23 TC(MIN) = 21.75 •x• 9F •lE 9E •1EdE-�E•-x• •K• •lf•-1E-•)E•9t• •li-•te• # 9F• •)E •)i• •ii• •k• �FdF •li• •)F 9E -•1P •!i• •)i• •k �E• �E •k•)E• •3E• iE• •�E •1t• •x• •IF•IE• •1(• �f• �E •lE••1F •lf• •�F•�F•k 9i• •]E jt -•1E• •1i -•k• •li• iF •iE••I6 •li• •�f• •If• 9f• dE •1F •k••1E •!i• iF•)E-!E •lf• •�• iF if• FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- )>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.118 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7015 SUBAREA AREA(ACRES> = 10.20 SUBAREA RUNOFF(CFS) = 15.15 TOTAL AREA(ACRES) = 160.70 TOTAL RUNOFF(CFS) = 279.39 TC(MIN) = 21.75 - •if• dE �if••1i• 9f••16 •>f •k 9i•iE •iE• �F-•IE• •1F• •lE• •1(• •3E iE �E• •k 3F->F�f• •k •If• 9F 9F *•)f• •lE •!E dt• 9i• •�• dE •iF •lE• •k •lE 9E•�E• �E iF df• •tE� •1E• •iE• 9F••!F •lE• •!E• -16.1F iE•�F•iE• •li-•!f• •R•IE••)F db -k iE• •)i• •lE-lf• 9F •lf••iE •IE• •k •x• •lt• 9F•dt• FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE = 3 ---------------------------------------------------------------------------- ))>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<( >>)>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<(< DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.1 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM NODE ELEVATION = 1518.50 FLOWLENGTH MEET ) = 460.00 MANN I NGS N = .013 ESTIMATED FIRE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFSV = 579.39 TRAVEL TIME(MIN.) = .47 TC(MIN.) = E2.51 * * * * •if-�f• •!E-iE •ii• •k •k• -IE• •iE •If••it• •!f• �f• dE iE iE iiai• af• •IE• •�•1F li• •!E �E• •3F iE •1ili• �f• IF 9f• •iE• 9iiF •li• •if• aF •It• iF-lf• �i-it••if--1F•k-•ii• �f• •if•i(••lE• •iF •iE• •It• dE 9f• iE ie• �F •iF �f• •iF •!E lE � ab •lE•it• •iF aE• df• it FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: -- TIME OF CONCENTRATION(MINUTES) _ 22.21 RAINFALL INTENSITY (INCH./HOUR) = 2.09 TOTAL STREAM AREA (ACRES) = 160.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 279.39 **** *�i--)t• •k 9F •)E• •k •lf-•!i• 9E •lE •)E••IF ii• •If•�f•iE if• •If•;E• •If• •)E• 4F •If• -)f• •�• •!f•-li• �1i-•)t• •If� iF�EiE iE •3t• •)E iF 9F-•iE••)f• •1E #•�E �i••�• •�E •lE •iE• aE •lE •)f• •iF •If• •)f• -1t• 9f• •)E• dE •!E •If• iE• •!6 it-9E•IF dE••lE• •ie• •X• -If• •lE FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE = 2 ---------------------------------------------------------------------------- >>)>)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)**.5 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 126.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 6.70 TC = .393W C ( 400. 00**3) / ( 6.70) 7 **. 2 = 9.772 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.423 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7581 SUBAREA RUNOFF(CFS) = 6.75 TOTAL AREA(ACRES) = 2.60 TOTAL RUNOFF(CFS) = 6.75 FLOW PROCESS FROM NODE 110.20 ---------------------------------------------------------------------------- TO NODE 110.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< ))>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<<<< ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 18.000 ---- -- DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 8.3 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1216.50 FLOWLENGTH(FEET) = 70.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 6.75 TRAVEL TIME(MIN.) = .14 TC(MIN.) = 9.91 FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ---------------------------------------------------------------------------- )>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<(< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.353 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7573 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) = 16.15 TOTAL AREA(ACRES) = 8.907 TOTAL RUNOFF(CFS) = 22.94 TC(MIN) = 9.91 iE •!i• •IE•)E••lEdf• •)f• �1r 9f••)E •le• %•►t• �E •IF •�• •x•aE• •IE• •li• iF •tE 9F �E •if• •IE iE• •� •K• iFat••IE-•� •►P•!F• •� iE •IE •lE• �F •iE••1E• fit• iE•3i•-� it• •� i� •)E• �F •lE• •1E �F •x• •iE• iF •lE••� �f• •lE �E iF �E •kit• •!f• iE• •!f• �t••� �F•i(• •ti• 9E •x• FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 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) _ 9.91 RAINFALL INTENSITY (INCH./HOUR) = 3.39 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 22.54 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ---------------------------------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 279.39 22.21 2.091 2 22.94 9.91 3.393 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 293.52 147.61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 293.52 TIME(MINUTES) = 82.214 TOTAL AREA(ACRES) = 169.60 FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<(< )>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<(( DEPTH OF FLOW IN 75.0 INCH PIPE IS 57.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.6 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH(FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 293.52 TRAVEL TIME(MIN.) = 1.04 TC(MIN.) _ 23.25 •lf••�•-If• �f• iE�t-•iE•if• •!i• •ii-•iE• �f••)f �E �E � •K• •k •1f• iE •R••lf• 9F •lf•iF•!F•lF dE aF9E •iE iE •k•lF• •lE• •lE••!E af• •lE •k •1F •169F aF�t• •IF9i-•3F •lE•K-•lE 9E •lE IE iE•ii• •)f• lf• •1F• 9f• •lE• dE•)E •le• •!P •lf• iE �F •)E•9E• •!F iF 9f• 9f•iE•!t• FLOW PROCESS FROM NODE 1210.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- ))>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< -------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) _ 23.25 RAINFALL INTENSITY (INCH./HOUR) _ 2.03 TOTAL STREAM AREA (ACRES) = 165.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 293.52 •lE••� dE �E iFdF dE dF• �E• 9F 9F iE iF•1f••if••IF• •li•�•1EiE dE• •ii• �E •lF iE-�i• •k• •IE• •!E •!i••lf••tF •IF 9E• 9E• 9F iF •3e• 9E• •)E•ie• 9E• •!E•�li• •tE •1E�4• •�•�E• 3E •121• •li• 9F •IE •!E••lE •IE dF•iE••IE dF di• •lE •!e••)f--lE •iF iF dF• •IE •1(•dE �f• if-aE •�• FLOW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE = 7 ---------------------------------------------------------------------------- >>))>USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<<(< ------------ USER-SPECIFIED VALUES ARE AS FOLLOWS; TC(MIN) = 13.78 RAIN INTENSITY(INCH/HOUR) = 2.78 TOTAL AREA(ACRES) = 34.40 TOTAL RUNOFF(CFS) = 58.67 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = f ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: -- TIME OF CONCENTRATION(MINUTES) = 13.78 RAINFALL INTENSITY (INCH./HOUR) = 2.78 TOTAL STREAM AREA (ACRES) = 34.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ 58.67 **�F**9t•-1e••K•**�E•**aE*-1f•*******•iE••�*•1E*•Jf•**•lE********•!E******•�•**************************•1E•9E• FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>))RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<<(( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)?**.2 INITIAL SUBAREA FLOW -LENGTH = 720.00 UPSTREAM ELEVATION = 1221.60 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 6.40 TC = . 393* C ( 720. 00**3) / ( 6.40) ] **. 2 = 14.032 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.755 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7358 SUBAREA RUNOFF(CFS) = 1.22 TOTAL AREA(ACRES) = .60 TOTAL RUNOFF(CFS) = 1.22 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<(<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.03 RAINFALL INTENSITY (INCH./HOUR) = 2.75 TOTAL STREAM AREA (ACRES) = .60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.22 FLOW PROCESS FROM NODE 120.30 TO NODE 120.00 IS CODE = 2 ---------------------------------------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW -LENGTH = 600.00 UPSTREAM ELEVATION = 1217.60 DOWNSTREAM ELEVATION = 1215.20 ELEVATION DIFFERENCE = 2.40 TC = . 393* C ( 600. OQt**3) / ( 2. 40) J **. 2 = 15-304 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.615 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7297 SUBAREA RUNOFF(CFS) _ .95 TOTAL AREA(ACRES) = .00 TOTAL RUNOFF(CFS) _ .95 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 )>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( >)>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( CONFLUENCE VALUES VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) = 15.30 RAINFALL INTENSITY (INCH./HOUR) = 2.61 TOTAL STREAM AREA (ACRES) = .50 TOTAL STREAM RUNOFF(CFS> AT CONFLUENCE _ .95 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER -------------------------------------------------------------------------- (GFS) (MIN.) (INCH/HOUR) 1 293.02 23.25 2.035 2 58.67 13.78 2.785 3 1.22 14.03 2.755 4 .95 15.30 2.615 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 338.02 234.66 237.25 250.38 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 338.02 TIME(MINUTES) = 23.253 TOTAL AREA(ACRES) = 200.10 �• •� ��• �••tt• •� �•�• •� •� •��-�-•��•� •��• �• �a� •� •� •x• •�•� *� �� •�•��• � •�•� •x• �-�• �• •� •� at•�t••� at• di -•)f• •��• •� •x• •�••� •� �• •� •x• •�•��• �• •�•� � •� * 9F •� � •� •K• •� if•9e• � �• FLOW PROCESS FROM NODE 10.00 TO NODE 140.00 IS CODE = 3 )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( ))>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(<<< - ------------------ DEPTH OF FLOW IN 63.0 INCH PIPE I S 49.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.7 UPSTREAM NODE ELEVATION = 115.20 DOWNSTREAM NODE ELEVATION = 1206.10 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 338.02 TRAVEL TIME(MIN. ) = .53 TC(MIN. ) = 23.7' iE ab iE •iE •lE•IF •if �E •iE• dE •!i• �E•-1E••lE •1E •lE• iE •lE •!E-9FdE• •iE• •1E �E• �f••IE ��••if• di• iFIFiE dF �9E df•#9E iE iE••x• iF if••)E•iE•%•IE••lF �E• •lE di• •� dF dE•IEdE••1E •IF iE• 9FiE••!P db•)t• •lE if• •lF •tE •R••le• 9E•lE• •iE• iE •x• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 23.79 RAINFALL INTENSITY (INCH./HOUR) = 2.01 TOTAL STREAM AREA (ACRES) = 205.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 338.02 •!E•dF•lE• •lt-iE •1F •x-•�t• iF •!E �•�• •►F•lE• •iE• iE• •IF• 9f• •!E df••IE• •!E dF•�• •li• dF iF iE •k •)F• •iE •If• •)i• •IFiE• •IF � •li• iF iE••)t• •k •!E dE••lE 9F dt• -)f• •iE•9E• •)E •lE• dF aE•�iE •x••!t-•1F •!E•dF-•It •if• di-dE• •fE• iE iF �E •�E• •1i• �E •!E•It• •1E•iE• •IE FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- )>)>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<(< USER-SPECIFIED VALUES ARE AS FOLLOWS: - TC(MIN) = 16.68 RAIN INTENSITY(INCH/HOUR) = 2.48 TOTAL AREA(ACRES) = 23.80 TOTAL RUNOFF(CFS) = 44.74 aE lE dF� iF %IE JE 9EiE��E 9E ie� �dF � iE * �i-iF iF � iEiE 4F �9E 9E i� dF�� 9F iE�ir� iE �� 9E�e iE 1i--161E1Elf-iF� k �E ib � �Fir aE 1F 1Fk 1f -9E dE lE� �E iE iF iE Jf�iilfk FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- >>)))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.68 RAINFALL INTENSITY (INCH./HOUR) = 8.48 TOTAL STREAM AREA (ACRES) = P3.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE- 44.74 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- >)>))USER SPECIFIED HYDROLOGY INFORMATION AT NODE<(<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: - TC(MIN) = 23.77 RAIN INTENSITY(INCH/HOUR) = 2.01 TOTAL AREA(ACRES) = 17.20 TOTAL RUNOFF(CFS) = 28.57 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- >))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< )>)>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 23.77 RAINFALL INTENSITY (INCH./HOUR) P.01 TOTAL STREAM AREA (ACRES) = 17.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ 26.57 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) -------------------------------------------------------------------------- 1 338.02 23.79 2.007 2 44.74 16.68 2.483 3 28.57 83.77 2.008 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 408.74 301.81 408.5` COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 402.74 TIME(MINUTES) = 23.788 TOTAL AREA(ACRES) = 246.10 FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 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.) = 16.5 UPSTREAM NODE ELEVATION = 1206.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 62,221.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 72.00 PIPE:FLOW THRU SUDAREA (CFS) = 402.74 TRAVEL TIME(MIN.) = .63 TC(MIN.) END OF RATIONAL METHOD ANALYSIS N = .013 NUMBER OF PIPES = 24. 41 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SEDC) 1983 HYDROLOGY MANUAL C<CC<<<<<(C<<<<(<<<(<<C<(<<(CCCCCCC<<<}))})}>>>}}>>)>>5}5)})})}}}}})}}}}}}}) (C) Cooyright 1982 Advanced Engineering Software CAES] Especially prepared for: HALL & FOREMAN, INC. <(<!<CC(<CCC<CC(C<<C<<<CCCCCCCC<CCC<(<)))})))}})>>>}})})})))))))))))})))))}) **********DESCRIPTION OF RESULTS*�*��� �*� ��r � ��� x � �� � � �� �e � � �a� �� � � � � ►i art � �� # �� FOOTHILL DRAIN HYDROLOGY, LINE "E{" & LATERALS "C", "E", "G" & W HERITAGE *• 0 100 YR *• * V. N. /J. M. , JN 3834-0207 11/29/1988 � df• •ii• *• •>• #•-)f• �E• ii• *• •3f• *• •k 9F• � *• *• •3i• *• *• *• •li• •!F •x• •if• •x• •IF• •ii• •lf• * •3E iE •lF• ai• ai• •If• •!i• 9i• iE •ii• *• *• � •* iF •lE• •ii• •ii• •iF •)f• •k ii• •k• •k #• iF * it *• •3E• •1F •JE• •!i• •fi• •Ii• iF •li• •iE• •lF •)f• •If• •ii• *• dr it •k• •iF ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: -------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR F=RICTION SLOPE _ .95 10—YEAR STORM 60—MINUTE INTENSITY QNCH/HOUR) _ .980 100—YEAR STORM 60—MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSI'T'Y DATA: STORM EVENT = 100.00 tc 0 1—HOUR INTENSITY ( INCH/HOUR) = 1.4700 SLOPE OF INTENSITY DURATION CURVE = .6000 SBC HYDROLOGY MANUAL "C•"—VALUES USED Advanced Engineering Software CAES3 SERIAL No. A05130A REV_ 3.1 RELEASE DATE: 5/01/85 CC<CC<CCCC!<<CCCCCC<<<<<C<C(CC<<!CC<<<})>>>}))})))))))})))})))))))})))))>))} •tt• 9i• -k• *• •k• di• •ic •1t •)i• •ii• -k dE• •li• •k -k• •ii• 9r •iF• •if• •ii• *• •li--k• •iF• •!i• •k• •!F •)t• •3E •if• if• •!i• •ie• •iE• •lf• •)f• •!E• •ii• •!f• •ie• iF •k• •lE• -k• 9i• *• •!t• •k• •iF •ii• •k iE •IE• •k• •li• if• �i• *• ii• •)E• *• •k• •3i• -1F -It• •li• •!i• •ii• *• •i; •if• •!E• •ii• •li- iF •li• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 7 ---------------------------------------------------------------------------- ))>>}USER SPECIFIED HYDROLOGY INFORMATION AT NODE<((<( USER—SPECIFIED VALUES ARE AS FOLLOWS: — TC(MIN) = 15.55 RAIN INTENSITY(INCH/HOUR) = 3.34 TOTAL AREA (ACRES) = 59.60 TOTAL RUNOFF(CFS) = 152.66 �•k -k•it• •k• *• •k• •� � *-•3i• •li•-!t •Ii• •It• •�• •� 9i• •ti• *• � •li• •ii -•IE••# ai• iF *••!f• � •k •lE •k• •li••�• *• *• # •lt• •ii -•k •ii• •k � *• •if• *• *-•� *• *• •!i• •lE � *• * •k 9i•# •!i• •# •li• *• •# *• •k• # •!r• •ii• •ii• ii• �•# *• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = i ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.25 RAINFALL INTENSITY (INCH./HOUR) _ 3.34 TOTAL STREAM AREA (ACRES) = 59.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15E.66 # ai• •k• �i• #• � •lE •k �• •ii• -k � ie •le• � •if• •li- •�• -k •k• •li• •fF ii• •it •ii• •3E •k ii -•ii• •k• iE •li- •it• it -)e• •ii• fie• -li• •1r •!i- •iF �- •fi• •1F •IE iE •li• iE jE• •li• •ii- •k• a�- ii- •li• •1E iE •if• # •R iE •3F ii• •�E �i• •ib •it• •�• •�• •�i• �E -k• iF •IE-•�• fie• FLOW PROCESS FROM NODE 196.00 TO NODE 198.00 IS CODE 7 ----------------------------------------------------------------------------- >>)))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<(< - ---------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.14 RAIN INTENSITY(INCH/HOUR) = 3.23 TOTAL AREA(ACRES) = 51.30 TOTAL RUNOFF(CFS) = 142.30 FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE£<((< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<(<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM S ARE: - TIME OF CONCENTRATION(MINUTES) = 15.14 RAINFALL INTENSITY (INCH./HOUR) = 3.23 TOTAL STREAM AREA (ACRES) = 53.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 142.30 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN. ) (INCH/HOUR) ---------------------------------------------------------------------------- 1 152.66 15.25 3.343 E 142.30 16.14 3.232 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS; 287.15 289.88 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 289.68 TIME(MINUTES) = 16.140 TOTAL AREA(ACRES) = 114.90 #•k dE -k 9i• •k •lE• # ai-•ii• •k is �aE• •k• •�•# -1i• •k �• •k •k• dF •ii•di• •x• •k # •ii• •k-�• •k •k # •k •k •�• � •�i••li• •k •k •k 9i• •ii• •� •k •k -k �E-•)E• •�••k• di• •k •#• •#• •iE •3�at• di• •1f•-li• •►i- �i• •!i• •iE• •)i• •�i• •ii• •�i- iE •}• 9i• •li• •ii• FLOW PROCESS FROM NODE 198.00 TO NODE 80.00 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.E INCHES --- ----- PIPEPLOW VELOCI T•Y (FEET•/SEC.) = 12.9 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1.254.00 FLOWLENGTH(FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 289.88 TRAVEL TIME (MIN.) = .73 TC (MIN.) = 16.87 �• •k •ii• �• * •iF• •k •1i• •k •!E• •R- •k •k •�• •k •k• •li• 9i --k 9E •x• •3i-•lF ii• •iE• •k •k •)f• �f• •li• �E -lE •3i• at• •�i• •3i• •�• •k •k •k• •k •k •3i• iE •k •li• �E• •k• -k -k •li• •#• •li• •k •!i• •k• •1F •ii• •!i• •k -k iE •ii• •3e• at- �E �i• •)i• •1i• •k• •li• -1F •3f -•k •k• •)t FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = 8 ---------------------------------------------------------------------------- >))))ADDITION OF SUBAREA TO MAINLINE PEAT: FLOW(<<<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.147 SOIL CLASSIFICATION IS "A„ SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7501 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 14.16 TOTAL AREA(ACRES) = 120.90 TOTAL RUNOFF(CFS) = 304.04 TC(MIN) = 16.87 R• •R � dE• •1f• •�• •3c •)F• � •� }• •R• •k -k• ii- •it• •iE •li-di• �i• ai• •3F •3F •!F •li• •k •k• •1i• •3t •ii• iE 9i• •)i• •iE• •k• •lE �i• •fit• •it •li• •ii• iF �i• �i• •1F •it- fit• •1E• •k• •�i• •ii• -k• -� •3i• •R •k •k• ii- •�• •3t• •# •iF •R• •!i• •3i• �i• •k• •k •!e• •!i• •ii• •�• •iE -l� �i• •iE FLOW PROCESS FROM NODE 60.00 TO NODE 90.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>)>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<(<( DEPTH OF FLOW IN 60.0 INCH PIPE IS 46.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 18.8 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH (FEET) = 960.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 60.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 304.04 TRAVEL T IME (MIN.) _ .87 TC (MIN.) = Q.74 •ii• •ii• •ii••k •�F ii• it ii• •3f• -k• •ii• if• # •k •k •)F•IE •li• •�• •li•-1t•-li• •iE •if• iE• iF •lf••iE •�F •�• •JE •)i• •�• � •k••k •lE• ai••)6.3i• iE••3E •lE 9f• -x• �F• jf• •3i• -x• 9e• � 9e••iE •K• 9i-•k-li• •lE •K• •!F• •!i• •�• •iF •le• � •!i• •K• •k• •!i• •Ii• •li• •!F •)i -•3t aF •3i• FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 8 -_---------------------------------------------------------------------------- >)>)>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 1O0.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.053 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7470 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 18.47 TOTAL AREA(ACRES) = 129.00 TOTAL RUNOFF (CFS) _ .322.51 TC(t*tIN) = 17.74 •�• •li• # •k• it •�• •r •iF 9i• dF •iF• ai• -lE •�• •k •k• �-li• dE it 4i• -)t •k iF �E••3f• •ii• �r •iE• dE 9E• -k• •lF9E •x• 9e• •li• ii• # � � •ii••li••x• •k •k •k• 9i- �i• •k• -k• di• � •lF••1i-•!i• •3b iF •x• •k• •x• •k •k• 9r •�F••ii• 4E ar •k• •3i• •k• •3t• di• 9i• 9E •k• FLOW PROCESS FROM NODE 30.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 3.053 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7470 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 33.07 TOTAL AREA(ACRES) = 143.50 TOTAL RUNOFF ( CFS) = 351.58 TC (MIN) = 17.74 ti• # # de• •!i-�i• -k •k-k•-li•-k••3i• •ii• •k• •�i• •k •li• •IE• •3E• dF •k df• •!�••lF •k •k -x• •!• •!f �i• •k •3F �-•3F •k• •�• •�• •�i••M• •Je• ii••1i• �i• •JF •3i• •li• •k •)i -9E •li• •3f• •►E• •3i• •ii• •!i• fie•-k�f• •k• aE •)i• •fF de• �E• j(• di• ai• •k• ii• •li• •k• �li• •�• •)i• •fie• �F FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE. = 3 >>))>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<( )>>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<(< DEPTH OF FLOW IN 63.0 INCH PIPE IS 46.8 INCHES - PIPEFLOW VELOCITY(FEET/SEC.) = 20.6 UPSTREAM NODE ELEVATION = 1236.00 DOWNSTREAM !MODE ELEVATION = 1225.00 FLOWLENGTH (FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 355.56 TRAVEL TIME (MIN.) _ .57 TC (MIN.) = 18.31 4F •ii• •tE-•Y• •le• •)i• •k dE •3i• -k -•k• 9F •iE •k -k •ii• •iE #• •)i• � aF •iE• di• •li• •k iF � •k• •#• •k # •#• •ii• •1E 9i• -k dE-1i• # •)i• dr •k-�• iE •3# �• •IE• �i• •k•If• dE• •x• •3i• •1i• -IF -Ii• •)i• iE •�• •)(• •1f• •k• •if• •ii•� •k �• •!F 3i• •1c �• •IF •if• � •k FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- > > > 1 > ADDITION OF SUBAREA TO MAINLINE FREAK FLOW (< < ( < 100.00 YEAR RAINFALL INTENSITY (I NCH/HOUR) = 2,996 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7450 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS) = 23.44 TOTAL AREA{ACRES) = 104.00 TOTAL RUNOFF(CFS) _ 379.03 TC(MIN) = 18.31 FLOW PROCESS FROM NODE 100.20 TO NODE 100.00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>ADDITION OF SUBAREA TO MAINLINE PEAK PLOW<((<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.996 SOIL CLASSIFICATION IS "A'' SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7450 5UBAREA AREA(ACRES) = 12.70 SUBAREA RUNOFF(CFS) = 28.35 TOTAL AREA(ACRES) = 166.70 TOTAL RUNOFF(CFS) = 407.38 TC(MIN) = 16.31 •K• •iE •k •k• •k• di -•1F •k �• it •Ji• it �- •� �• •it •1e• i� •iE• di•-lF• •k iE •ii• •k •k• 9i• 94.9i• 3E••iE •�E• •lE •�• •3E• �E-1E-•3i•a6 •k •3� •ti• •�• •R •ii• •tf• 9i• •li• •�• •�i• •k it ii• •1i• �i• iE• iF-k �F �E• iF• ii• •li• �i• •rE• •iE �E• •�• iF •t� -k• �i• •k• •�• •ie• �E• FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE _ 13 --------•-------------------------------------------------------------------- > > >) > COMPUTE PIPEFLOW -f RAVELT I ME THRU SUBAREA < < (( ( >)>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)&<<(< DEPTH OF FLOW IN 69.0 INCH PIPE IS 53.7 INCHES PIPEFLOW VELOCITY (FEET/ SEC.) = 18.8 UPSTREAM NODE ELEVATION = 1225.00 DOWNSTREAM, NODE ELEVATION = 1218.50 F•LOWLE-NGTH (FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 407.38 TRAVEL TIME (MIN.) = .43 TC (MIN.) = 18.74 •k• 9i••3i• •la• �i• •k -7f• •it• •iE #i• •lr � � �E •3t• •ii^ i4••if• iF •ii• 9i• 9r •lr •k• #• •3i• •li• •if• i6 # ie• •3t• •k• •3i• •ir � 9i• �F• •!i• •ii• •!E � #-ii• 9E• •�• # •1r •lE-•iF •lf• # •it• •lE •�• di-•iF• •!F •iF •1i• #-k• •ib 9i• � -li• •li• •k •ii• 9i• -k• •i(• •1F -li• •k• # FLOW PROCESS PROM NODE 110.00 "r'O NODE 110.00 I S CODE = i --------------------- -------------------------------------------------------- >>)>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 18.74 RAINFALL INTENSITY (INCH./HOUR) = 2.96 TOTAL STREAM AREA <ACRES) = 166.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 407.38 �f••k••k#:•Yc�s••�i••3i••�•iE•k•-k••k••Yi••3E•-1f•3c•k##�•k••li-•3F�F•3i••iE#ai••ii•�E•k••R••!i•ai••)f••3r•if•i(••ie••ii••iF•it•)f••3i•-36•ii••iE•lt••R•3i••k•k•3i••lF•li••ii••k••3t••3i••ii-•k•-k••ii•-k••ii••!i••ii•-lf••3f••3E••k•li•�i••li•�t••3i• FLOW PROCESS FROM NODE 110.10 TO NODE 110.0 IS CODE M 2 ------------------------------------------------------------------------------ >)>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<((( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K*C (LENG'T'H**3) / (ELEVATION CHANGE) 3**. INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1226.70 DOWNSTREAM ELEVATION = 1220.00 ELEVATION DIFFERENCE = 6.70 TC = . 393 • E < 400. sZl0•lE•1 3) / ( 6.70) 3 **. 2 = 9.772 100.00 YEAR RAINFALL INTENSITY<INCH/HOUR) = 4.367 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7760 SUBAREA RUNOFF(CFS) = 8.83 TOTAL AREA ( ACRES) = 2.60 TOTAL RUNOFF(CFS) = 8,83 •k•3t•####•k•###�i••3i•####•3i•#di••�•#ri•######•�F�•##•lt••1t•##it•�F•####•3i•#•�t�i•ic###•%•#####it•1r•?f•li•###•li•#,t•#########-k FLOW PROCESS FROM NODE 110.20 TO NODE 110.00 IS CGDE = C > > > > > CDl+ PU.T E PIPEFLOW T RAVE LT I ME THRU SUBAREA -- - -- ---^ -- < < (< ( >))>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<((( ESTIMATED PIPE DIAMETER(INCH) INCREASED TO -16. 16.000 -- ---- --- - ---- - --- ------ DEPTH OF FLOW IN 18.0 INCH PIPE IS 9.9 INCHES PIPEFLOW VELOCIT'Y(FEET/SEC.) = 8.8 UPSTREAM NODE ELEVATION = 1220.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGT•H (FEE T) = 70.00 MANNINGS N = .013 ESTIMATED PIPE. DIAMETER(INCH) = 18.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 8.83 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 9.90 FLOW PROCESS FROM NODE. 110.00 TO NODE 110.00 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) = 9.90 RAINFALL INTENSITY (INCH./HOUR) = 4.33 TOTAL STREAM AREA (ACRES) = 2.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ 8.83 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUIMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 407.38 18.74 2. 95 5 2 8.83 9.90 4.332 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SDC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 4Q.40 224.17 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 41.3.40 TIME (MINUTES) = 18.736 TOTAL AREA (ACRES) = 169. 31D d • •!: #i• •ii• •k• iF •ii• •}• -li• # # -ii• # •1c �• # # # # •ii• # # # # •#• # # # # •}c •li• •k• ii• # •k •� •)i• # # •it• 9!• •�i--lf• # •lE •N• •k• •3i- •k •x• •k• •k •3e• # •IP •►f• # •k # # -ii• # •le• •1t• •)i• •k• -li• •li• # #-k •si• # �r �i• FLOW PROCESS FROM NODE 1.35.10 TO MODE 11.0.00 IS CODE = 6 ------ > >) >) I) ADI T I ON OF S U8AREA TO MAINLINE PEAK FLOW < < < < < 100.00 YEAR RAINFALL INTENSITY ( INCH/HOUR) = 2.955 SOIL CLASSIFICATION I5 "A" 7I NGLE-FAM I LY (1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7436 SUBAREA AREA VACRES) = 7.10 SUBAREA RUNOFF (CFS) = 15.60 TOTAL AREA (ACRES) = 176.40 TOTAL RUNOFF (CFS) = 429.01 TC(MIN) = 18.74 FLOW PROCESS FROM NODE 110.00 TO NODE 120.00 IS CODE = 3 ))>>>COMPUTE PIPEFLOW TRAVELi•IME THRU SUHAREA(<<<< COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW) < < < < < DEPTH OF FLOW IN 87.0 I NCH F'IF'E IS 66.2 INCHES PIPEFLOW VELOCITY(FEET/SEG.) = 12.7 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1215.20 FLOWLENGTH(FEET) = 7E0.00 MANNINGS N = .013 ESTIMATED PIPE: DIAMETER(INCH) - 87.00 NUMBER OF PIPES = 1 PIPEFL OW THRU SUBAREA (CFS) = 429.01 TRAVEL TIME (MIN.) = .94 TC (MIN.) = 19.68 •k•ii••�•#####•k####•it•#####•3i•##ie•k####�i•####•�•################•if•##-IF#•);•###•3i-#•ii•##fit•#•k•####•3F•### FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 8 ------------- "------- •----------- _..-.--•-----•---------•-------.----- •-•----------•-- --- >>>>}ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<( 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.870 SOIL CLASSIFICATION IS "A„ COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8281 SUBAREA AREACACRES) _ .60 SUBAREA RUNOFF(CFS) = 1.43 TOTAL AREA(ACRES) = 177.00 TOTAL RUNOFF(CFS) = 430.43 TC(MIN) = 19.66 �••k###•k •k#•k•�f##•1F•!�•k•#�i•#aE•#ii•####•1E•-)r••k••k•di••iE####-k•####•36#�f•###•3k#at•##•3f•#######iF###�i•#•!i•####•!i••k##aE# FLOW PROCESS FROM NODE 150.30 TO NODE 120.00 IS CODE = 8 ----------------------------------------------------------------------------- >>>)>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.670 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8581 SUBAREA AREA(ACRES) _ .00 SUBAREA RUNOFF(CFS) = 1.13 TOTAL AREA(ACRES) = 177.00 TOTAL RUNOFF(CFS) = 431.62 TC (MIN) = 19,68 FLOW PROCESS FROM NODE 150.00 TO NODE 00.00 IS CODE = 1 ---------------------------------------------------------------------------------- >))>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<(((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: _ TIME OF CONCENTRATION(MINUTES) = 19.68 RAINFALL INTENSITY (INCH./HOUR) = 2.87 TOTAL STREAM AREA ( ACRES) = 177.50 TOTAL. STREAM RUNOFF(CFS) AT CONFLUENCE = 431.62 •ii••3i••k#•le-###t'•,li•###•1(•###ic•,!••k•###•le•##•it•#•k••�•#•3t•####•i:••?i•dr##-K•######•le•####9r#•li•dE•#•ii•#3f•####•it•#•1F•k•#�i•##•it••�••li• FLOW PROCESS FROM NODE 120.00 TO NODE 150.00 IS CODE = 7 ---------------------------------------------------------------------------- ?>>}}USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<( USER-SPECIFIED VALUES ARE AS FOLLOWS; TCCMIN) = 1.:3.72 RAIN INTENSITY(INCH/HOUR) = 3.56 TOTAL AREA ( ACRES) = 34.40 TOTAL RUNOFF(CFS) = 77.37 9i• ae• # # •le• # # # # # •h• # 9i• 9E •li• # # •3f 4i• ii• # •ii• # •ie ii• # # # •k # •#• # # # -k• # # •3i• •li• i�• di• # •N # # •li• �• # # #• •?: •#• •Yc- •H• *• # •iF # de• # •!• # fit• •it �t •A• # •#• # # # #• # # # •! FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 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) - 13.72 RAINFALL INTENSITY (.INCH. /HOUR) 1.56 TOTAL STREAM AREA (ACRES) = 34.40 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 77.37 CONFLUENCE INFORMATION: STREAM RUNOFP TIME INTENSITY ilUMBER (CFS) 0711N. ) (INCH./HOUR) ----- 1 431.62 1916-B 2.870 2 77.37 13. 72 3. 563 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (SEDC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE. AS FOLLOWS: 493.93 378.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF ( CFS) = 493.93 TIME(MINUTES) = 19.676 TOTAL AREA(ACRES) = 211.90 -�•#•fF###�e•#•it•##•k•#####-k••k�e•#####•le•9t•#de•#ii-###•li•##•k•#•ii•#•if••ie•�f•###-k•##•!i•#ie••3i••#••li•#•#•###•k•3E##k####•Ie•## •Sr•Y••k FLOW PROCESS FROM NODE 120.00 TO NODE 14.0.00 IS CODE _ 3 > 0 > > COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA (< < ( < > > > > > i (SING COMPUTER -ESTIMATED PIPESIZE (NON -•PRESSURE. FLOW) < (< < ( Dr'.PT'f-i OF FLOW IN 72.0 INCH F'IPEI IS 56.'x+- INCHES PIPEFLOW VELOCIT•Y(FEET/SEC.) = 20.6 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLE NGT•H (FE:ET) = 600. 00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) = 493.93 TRAVEL TIME<MIN.) = .49 TC(MIN.) = 20.16 FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 > > > > > DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < (< ( < CONFLUENC L VALUES USED FOR INDEPENDENT STREAM _-1'ARE: __•_____.__.-•--_--.__..__.___ TIME: OF CONCENTPATION (MINUTES) = 20. 16 RAINFALL INTENSITY (INCH. /HOUR) = 2.83 TOTAL STREAM AREA (ACRES) = 211.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 493.93 FLOW PROCESS FROM NUDE 140.00 TO NODE 140.00 IS CODE = 7 _---_..---------•-_.._.- > > > > > USER SPECIFIED HYDROLOGY INFORMATION AT NODE (< < < < USE=R -SPECIFIED VALUES ARE AS FOLLOWS: T(-,'(MIIN) = 16.90 RAIN INT'ENSITY(INCH/!-TOUR) _ 3.14 TOTAL AREA(ACRES) = 25.00 TOTAL RUNDFF (CF'S) = 81. 6L; FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 >) > > > DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < ((< - CONFLUENCE VALUES USED FOR INDEPENDENT STREAM ARE: TIME: OF CONC N i RATION KINU T ES) = 16.90 RAINFALL INTENSITY (INCH./HOUR) = 3.14 TOTAL STREAM AREA (ACRES) = 25.00 TOTAL STREAK; RUNOFF (CFS) AT CONFLUENCE = 61.65 ##�i•#•ii•##•�#########ii•�i•#•3f•#############•iF##•k•�t#•1h•�••li•#�(•#•!•�••)i•###ii••li••�•#•ki••k•�i•ii •�•###•# #•-It•�?##•tE�•�-ic FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- ))))>USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC (MIN) = E3. 60 RAIN INTENSITY ( INCH/HOUR) _ 2.57 TOTAL AREA (ACRES) = 17.20 TOTAL RUNOFF (CFS) = 17.7E •�•#�i•######�;••Jr#•x•###•)f•##�i•####•k•###•x•�•###•li•########9i•#it•�•##########•�f•####�F•####ii•�(•####•k•## FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ))))!DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<(<< > >) >) AND COMPUTE 'VARIOUS CONFLUENCED STREAM VALUES (((< ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: -------- TIME OF CONCENTRATION(MINUTES) 23.60 RAINFALL- INTENSITY (INCH. /HOUR) 2.57 TOTAL STREAM AREA (ACRES) = 17.20 TOTAL STREAM RUNOFF (CFS) AT. CONFLUENCE = 37.72. CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ----------------------------------------------------------------•----- 1 493.93 20.16 C. 828 R, 61.65 16. 90 3.144 ..J 37.72 23.60 2.573 RAINFALL INTENSITY AND TIME: OF CONCENTRATION RATIO FORMULA (SLAC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 581.61 502.59 537.61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 581.61 TIME (MINUTES) = 20.164 164 TOTAL AREA KCRES) = 254,10 #at•li•##•/r####•!F•k•#####•li••k•i•#•)i••it••k•H•#�e•-k•#######•lt•######-It•#######•!i•####•ii•##-1E•#•###•3r•3i•#�(•######•ir•!i••!i FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 ))>)>COMPUTE PIPEFLOW TRAVEL•1IME THRU SUBAREA((<(< ) > > > > USING COMPUTER -ESTIMATED PIPESIZE: (NON -PRESSURE FLOW) (((( ( DEPTH OF FLOW I N 94.0 INCH PIPE I S 64.9 INCHES-- PIPEFLOW VELOCITY(FEET/SEC.) = 18.2 UPSTREAM REAM NODE ELEVATION = 1206.10 DOWNSTREAM NODE ELEVATION = 1200,00 FI_OWLENGTH (F• EE T) = 620.00 0 MANN I NUS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = i PIPEFLOW THRU SU9AREA (CFS) = 581.61 TRAVEL TIME (MIN.) _ .57 TC (MIN.) = 20.73 ###•#•k•,li•#•k####•x•##•K•iE••iE•##•i6###•k••k•-k•##•le•#####•#•�f•##•k••�•#•###di•#•3f•##•k•#•�•###�i••Di•#•ii•#•k-#####�i•##•#•)i••ii•### FLOW. PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 1 ------------------------------------------------------------------------------------ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( )!)>> AND C+OMPUTe VARIOUS CONFLUENCED STREAM VALUES (< < ( ( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: -- - - - ----- --- - --_--- T I ME OF CONCENTRATION (MINUTES) - 20.73 RAINFALL INTENSITY (INCH./HOUR) _ 2.76 TOTAL. 'STREAM AREA (ACRES) = 254.10 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 561.61 CONFLUENCE INFORMATION: STREAM M RUNOFF T I ME INTENSITY NUMBER (CFS) (MIN. ) (INCH/HOUR) -------------------------------------------------------------------------------- 1 581.61 20.73 2.781 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(S8C) USED FOR 1 STREAMS. VARIOUS CONFLUENCEU RUNOFF VALUES ARE AS FOLLOWS: 5BI. 61 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 581.61 TIME (MINUTES) = 20.730 TOTAL. AREA KCRES) = 254. 10 END OF RATIONAL METHOD ANALYSIS RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM - ------ BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (<((<<<<<<(<<<<<<(<<<<(<(<<<<<<<<<<(<(>>>>)})}>)>>>>)})>.)>)>>I)>>>>)>>>}>)>> (C) Coovright 1982 Advanced Engineering Software EAESI Especially prepared -For : HALL & FOREMAN, INC. **********DESCRIPTION OF FOOTHILL DRAIN HYDROLOGY LINE "A" & LATERALS "C "E "G" K• W HERITAGE # 0 25 YR � * V. N. / T. M.. JN 3834-020, 11/29/1988 �i• •ii• •If• •ii- •�E-•ii• •�• iE •li••li•-lf• �E •�• •iE •R• •ie• •li• •3i••k •3e• •�• ii• •k••�E dE dF •�• dF •�E• dF •i(• •ii• •iE• de• •�f• •k• •)e• •7E• •!E• •ft• •!i• •le •�• •)F iE # •!t• �i• •!f• •�• �i• •!i• •1t• •fit• •3E -If• -�• •IE9t•-lE• •IE fit• •lE •iF• •3E 9i• •li• •li• •if• •!F •3E-ir •k •k• •ii• 9E --------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) _ 25.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE _ .95 10 -YEAR STORM 60-MINU•T•E INTENSITY(INCH/HOUR.) _ .980 100 -YEAR STORM 60 -MINUTE INTENSITY(INCH/HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH/HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE = .6000 SBC HYDROLOGY MANUAL "C" -VALUES USED Advanced Engineering Software CAESI SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/65 •11.16 •k• •�i• •ii• 9i• #•ii• •li• i4• •ii• �+• �f• •�• iE• •li• 9f• ji• 9i• •�• •ii• dE #• •ii• •ii• •k •ii• de• 9f• if• •!i••if-•k •if• •ii• iE• �i•9i• •�• •li• •�• �E-•lF •�(• •1t-•�• •lF •K• •3F�t• •iE• •lE••R• •te• ii• �E• 9i• -%• •li• iE •lF •iF •lf••H• ie •k• •1F iF #-k• •1F �i• iE• •lE di• FLOW PROCESS FROM NODE 198.00 TO NODE 196.00 IS CODE = 7 ---------------------------------------------------------------------------- >)>)>USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<< USER-SPECIFIED VALUES ARE AS FOLLOWS:---'-�---- TC (MIN) = 15.68 RAIN INTENSITY (INC•H/HOUR) = 2.58 'L l N" TOTAL AREA(ACRES) = 59.60 TOTAL RUNOFF(CFS) = 114.71 •K -•k iE •Ji• •li•-)(- # •�• •JE• 9i• -�• •!f• •k• iE -k •if• •!i• •k• •li• � * •iE •�• •It iF dF at• •)t• •iE- •IF• iE •iF• iF de• •JE• •lF •if• •li• •1F iE• �E• •)E• •le• •li-•lE if• •lF• �f••It•-li• •�• �f•-3E •�E iE• •lf• �E• •3i• •)f• •lt• •!i• �f- •!f• •k• •IE -k• # if• aF•-1� �F •!� •k •k •�E •iF FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<(< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.68 RAINFALL INTENSITY (INCH./HOUR) = 2.58 TOTAL STREAM AREA (ACRES) = 59.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 114.71 •IE• •li• •If• di• •li-di• •lr �E •3i• •li• ii- •k• 9i-iF •R• •li• •3e• •iN iE iE •k• •IE •!i• �i• •iE •!i• •!b •)i• -K- •it• ii• •� •iF-% �f• •�• •k � •i� •IE •ii• •iF IF if• •Ii• •k• •1F •it jE •?F iE• 9F •IF �f• •iF •R• •k• �(• aE •k• •lr •?f• �E• •3i• �E �i• ai• •!i• •lf• �E•-ri• •li• ie• at• •if• � FLOW PROCESS FROM NODE 196.00 TO NODE 158.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: _ TC(MIN) = 16.27 RAIN INTENSITY<INCH/HOUR) = 2.52 TOTAL AREA(ACRES) = 55.30 TOTAL RUNOFF(CFS) = 108.69 > ar E ;f••li• -1F •i(• •3i•df• •li••!i•-lf• •lf••it• •)t• it••k• di• •k •ii-•IFif••3i•-k• •!i• �i• dt ii• •ii• •k• •)E •3e• 9E if• •16 dr iF •li-•if• •IF •iF •lE• •k 9i• •)i• -IF •3E dF 9F •IF• dF••)i• •3i••lf• •1i• •1i -•k• if• •k%•lE •lE� •3F •!i• �i• dF •li• iF 9F •iF •k � � dE �• •li• iF •Jt• •1e• FLOW PROCESS FROM NODE 198.00 TO NODE 198.00 IS CODE = i )>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(((<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE; TIME OF CONCENTRATION(MINUTES) = 16.27 RAINFALL INTENSITY (INCH./HOUR) 2.52 TOTAL STREAM AREA (ACRES) = 55.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 108.69 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ------------------------------------------------------------------------- 1 114.71 15.68 2.577 2 IL -118.69 16. 27 2.521 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 219.45 220.88 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 220.86 TIME(MINUTES) = 16.270 TOTAL AREA (ACRES) = 114.90 di• 9i• •�••if� •ff-ii• •K• � •k ji• iF• �• •►r df• iF �f--)i• -k• •)E •!i• •1F •)f• •k •ii• •3i• 9i• •li• •3E•Yi-•�• •3f• iE• •ii• •3f• •�• •!i� aE �E• •k •1E �i• •li• •if••h• �f-•le• •!E• �i• •k• •IF •k• �E• •x• •ii• •IF• •k• •k -lf• jt --)i• •li• •�i- •li• •if• 9i• -k ai• •k •ii••lE •�i• •�i• •)f• -k di• •k FLOW PROCESS FROM NODE 196.00 TO NODE 80.00 IS CODE = 3 >>>>?COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(<<<( >?>>)USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)(<(<( DEPTH OF FLOW IN 63.0 INCH PIPE IS 50.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1257.50 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 570.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 220.88 TRAVEL TIME(MIN.) = .80 TC(MIN.) = 17.07 •ii- •�•di• •k •k ai••IE••fi• iE 9i• •k• •�• 9t -•ii• •li• if• �• •iE• •ii• •lt• •!i• •�••iE•iE •�• •lE � •ii• •li• 9i• •k• •�• iF � •iE dE �E •iE •k �E• iE iE •)E -!i• •3E• •k• �E• •iF •!i• iE •JF jE• •iE •fF• •IF 9i -•3i• •if• •k• •IF• jt• •IE• !i• •k• •iE •If-•fE •3i• dE �f• •ii• •K• 9f• jE••!r FLOW PROCESS FROM NODE 80.10 TO NODE 80.00 IS CODE = 8 ---------------------------------------------------------------------------- )?>>?ADDITION OF SUBAREA TO MAINLINE PEAK. FLOW(<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2,449 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .721E SUBAREA AREA(ACRES) = 6.00' SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) = 120.90 TOTAL RUNOFF(CFS) = 231.49 TC(MIN) = 17.07 �i• •k •!t• •�• •�i- * •k• if• # •3i• -k• •)i• •ii• •li• •iE•-)i- •if• at• •fi• aF• �• �f• •3E•�f• %ii• •k• •!4• •iF iF ii• •ii• •�• •li• •lE -li• •lt--lE•R• •li• •3i• •li• •3f• •k• •lE •)i• -li• •li• •li• •1F if -•ii• •X• •R• •k• �i• •li• •k iF •K• •�• •k •3i• •l� •i� •lE di• •k •!F ii- �• •k• •1f• �f• •if• •le• FLOW. PROCESS FROM NODE 60.00 TO NODE 90.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<(<<< >>>>)USING COMPUTER -ESTIMA"T"ED PIPESIZE (NON -PRESSURE FLOW)((((( DEPTH OF FLOW IN 54.0 INCH PIPE IS 41.8 INCHES -- PIPEFLOW VELOCITY(FEET/SEC.) = 17.5 UPS'T'REAM NODE: ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1238.00 FLOWLENGTH(FEET) = 980.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 231.49 TRAVEL TIME(MIN.) = .93 TC(MIN.) = 18.00 ii• 9i• �i• •k• •k dF •1i•-li- 9i• � ie �f• •!E• •K• •3i -•)E •1F -Jt• iF •!E 9f• •!f• •!f •R• •iF •k• di• -k dF •1i• # •1E iF 9f• -►E• •)i• •3f• di• dF •fit• •!E �E• # -if• aF •k i(• •1f• �E• •)i• •le• •li• •iF �f• •!i• di• •!i• •�• -IE• di --k -1F •1i• •if• •k• •k •k •!E ii• # •lE• dE •k •k• dF •k FLOW PROCESS FROM NODE 90.10 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.372 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RyOaFF COEFFICIENT = .7174 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 13.79 TOTAL AREA(ACRES) = 129.00 TOTAL RUNOFF(CFS) = 245.27 TC(MIN) = 18.00 iE• de• � �i• •1i••It• •li••ii• ii• •x• •fi• iE •li-•i(• it •k• •ii -•)E •li• •�•-�• fit• •!E• aF •1f• •3E• •k••�i• iF• •14• •3t •It• ii• •3E-iFir •k-16 fie• •if• •li• •li• •iE •iE9F ii• •lF-•if••lE• iE •�•iF •�•-k• •k •iE• •k •l� 9f••3t-lE di• dE •)f• •�F •lE•dt •ii• •li-•ii••If• •3E•k• •?F• ji••�• FLOW PROCESS FROM NODE 90.20 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >))>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY (I NCH / HOU R) = 2.372 - SOIL CLASSIFICATION IS "A„ SINGLE-FAMILY(1/4 ACRE LOT) RYNOFF COEFFICIENT = .7174 SUBAREA AREA(ACRES) = 14.50 SUBAREA RUNOFF(CFS) = 24.68 TOTAL AREA(ACRES) = 14S.50 TOTAL RUNOFF(CFS) - 269.95 TC(MIN) = 18.00 iF •� ji-•]i-•li•-� ii• ii• # •k •3i• •�• •li• •ii• � i? •ii• •IF •)i� •3i• Ai••1r di• •)F•di• •x• •If• •k• •ti•9t• •lE•!r � •lf• � •k iE •k• -)i• -If• •�•IE••iE •k •!f• df-•iE••!F 9E••�• de• •lE• di• iF •k9i• •IF• �••x••If• * •lE-li• •ii• •1i• if• 9f• •k �(• •IF # •)i• •!i- •3e 9i• •!F• FLOW PROCESS FROM NODE 90.00 TO NODE 100.00 IS CODE = 3 ?)???COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>)USING COMPU"T"ER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<(((< DEPTH OF FLOW IN 57.0 INCH PIPE IS 42.1 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.3 UPSTREAM NODE ELEVATION = 1236.00 DOWNSTREAM NODE ELEVATION = 1225.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) _ :69.95 TRAVEL TIME(MIN.) = .61 TC(MIN.) = 18.60 •� •1t--k•iE •iE••�E •iE•!i-�E••lE-Ii-•)f• iE-k •k �i• •le-�E 9i•9i• iE iE •�• •ii• •ii• iF �f• -1r •ii• if-# �E• •k• �E• •le••)f• �i• •iF •3E• •k-li• fit• it -•3i• •lf• �i• �i•if• •k aF # •K• ii• •ii• •3� •if• •�• •k• •� aE• ai• •k •iE-�(• •li• •li• lt-•x• •iE�t-•li-•%--li• -k •#• •k FLOW PROCESS FROM NODE 100.10 TO NODE 100.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>%)ADDITION OF SUBAREA TO MAINLINE PEAK_-L�w 25.00 � YEAR RAINFALL INTENSI'T'Y ( INCH/HOUR) = 2.326 SOIL CLASSIFICATION IS "A,. SINGLE-FAMILY (1 / 4 ACRE LOT) R.! FF COEFFICIENT _ . 7 i 48 17. 46 SUBAREA AREA(ACRES) = 10.50 SUBAREA RUNOFF(CFS)_87.41 TOTAL AREA(ACRES) = 154.00 TOTAL RUNOFF(CFS) _ TC(MIN) = 18.60 aE•�#*•tE•##*#•)F-tE•*�"�"*'�**-�•##*##*#*•�•#*•x•ii••IF•k•*##di-iF#•!E•###•li•#####•if•###•tE######•1i•#•k ii•##•�••�##�'�'�•#'�' FLOW PROCESS FROM NODE 100.20 TO NODE 10+x.00 IS CODE = 8 ------------ ----------------------------------- ->>>)>ADDITION OF SUBAREA -TO- MAINLINE -PEAK -FLOW(((((_____________________ _ �- 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.326 SOIL CLASSIFICATION IS "A" SINGLE-FAI LY (1 / 4 ACRE LOT) RUN F COEFFICIENT = .7148 �1 21.11 SUBAREA AREA(ACRES) = 12.7 SUBAREA RUNOFF(CFS) _ TOTAL AREA(ACRES) = 166.70 TOTAL RUNOFF(CFS) = 308.52 TC(MIN) = 18.60 #•3{••1f••)E•###•)i•###•it##•ii•di••1E-•iE••li•�f##iF###•3(•##•)F•#•it-#•!i•##-k#####•iE�i••ii••k•!t•�i•#####•!i•###•if•##•lF-k###•ii••k#iF•iF##iE### FLOW PROCESS FROM NODE 100.00 TO NODE 110.00 IS CODE _ -->>>)>COMPUTE-PIPEF'LOW-TRAVELTIME THRZESUNGNE�RESSURE FLAW>(<C<< -- )>)>>USING COMPUTER -ESTIMATE (NON -PRESSURE -DEPTH OF FLOW -IN- 63.0 -INCH -PIPE IS 47.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.)jl= 17.6 UPSTREAM NODE ELEVATION = 1 � 25.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGTH(FEET) = 480.00 MANNINGS N = BER OF PIPESESTIMATED PIPE DIAMETER(INCH) = e63.00 NUMBER = 1 PIPEFLQW THRU SUBAREA(CFS) _ 52 TRAVEL TIME(MIN.) = .45 TC(MIN.) = 19.06 •k•)i-#•lr•k•##•i�#•lE••1F#•li•ii•#•k•##iF#####•ii•##•lE••lF•1t'•le•#�f'#•iE##-1r#•!i-#if••k##•k•#ib##•lf•######•11--1f•####iE##•)E•-1F'#k•##•!f•#le••li• FLOW PROCESS FROM NODE 110.00 TO NODE 110.00 IS CODE = 1 ------------ ------- >>>>)DESIGNATE_INDEPENDENT-STREAM-FOR_CONFLUENCE<<(<(________________^-___ ==CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.06 RAINFALL INTENSITY (INCH./HOUR) = 2.29 TOTAL STREAM AREA (ACRES) = 166.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 308.5: ##•x••1t#•�••ii•#•ie•#•k#ic#•ti•#ii-###•x•#•tE•#•ii-•li•iE#####•3E•1F########�i•aE•##at•##YC#####•IE##lt•##•lE•#L•ii•#####•�i•#�••1�## FLOW PROCESS FROM NODE 110.10 TO NODE 110.20 IS CODE _ ------ ->>>))RATIONAL-METHOD-INITIAL-SUBAREA-ANALYSIS((((< ASSUMED_INITIAL SUBAREA UNIFORM DEVELOPMENT IS; SINGLE FAMILY (1/4 ACRE) TC = K* C (LENGTH*•x•3) / (ELEVATION CHANGE) J **• 2 INITIAL SUBAREA FLOW -LENGTH = 400.00 UPSTREAM ELEVATION = 1226.70 DOWNSTREAM ELEVATION = 1220 ELEVATION DIFFERENCE = .70 6.7i0) 3**. 2 = 9.772 TC = . 393,* E ( 400.00* #3) / 25.00 YEAR RAINFALL TNrt'ENSITY(INCH/HOUR) _ 3•423 SOIL CLASSIFICATION IS "A" S I NGLE-F•AM I LY (1 / 4 ACRE LOT) RUNOFF COEFFICIENT = .7581 SUBAREA RUNOFF(CFS) = 6.75 TOTAL AREA(ACRES) = 2.60- TOTAL RUNOFF(CFS) = 6.73 9e• •k dt• •Df• •R• di• •it •?:• •)f• •!i• •3f• •3f• •k •if• •k• •iE •k 9F •)t• •ii• ii• •)f• •k •1f• -1F iE •)f• ii• •li• •ib �i• iE• •!f• iE• di• •if• •)f• 9f• •�i• •le• •lE• •iE •ii• •it• •IF �F• -1E• •k •It •iE iF •iE ii• i6 •x• •iE * •!f• •�• -li• 9i• •1f• ib •it• -le• •lE •!E •lf• dE• dF df -•k• •�• 9i• •iE• •li• FLOW PROCESS FROM NODE 110.20 TO NODE 110.00 IS CODE = 3 >)>)>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<?< >>))>USING COMPUTER -ESTIMATED PIPESILE (NON -PRESSURE FLOW)(<(<( ESTIMATED PIPE DIAMETER(INCH) INCREASED TO 16.000 DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.5 INCHES PIPEFLOW VELOCITY(FF_ET/SEC.) = 8.3 UPSTREAM NODE EL.EVA•T'ION = 1220.00 DOWNSTREAM NODE ELEVATION = 1218.50 FLOWLENGT•H ( FEET) = 70.00 MANN I NGS N = .013 ESTIMATED F`ID`E DIAMETER(INCH) = 18.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA ( CFS) = 6.75 TRAVEL TIME(MIN.) = .14 TC(MIN.) = 9.91 FLOW PROCESS FROM NODE 110.00 TO NODE iiO.00 IS CODE = f >>))>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<(( )>))>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<<&< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 9.91 RAINF=ALL INTENSITY (INCH. /HOUR) = 3.39 TOTAL STREAM AREA (ACRES) = 2.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.75 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------------------------------------------------- 1 308.52 19.06 2.292 2 6.75 5.51 3.393 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 313.06 167.22 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 313.08 TIME(MINUTES) = 15.059 TOTAL AREA(ACRES) = 165.30 •k � •k di• •k• •h• ai• •N• � -li• •)i• •iF 9i• �i• -li• •1i--lf• -1i--1i• •k• •k •3E �F• •3i• �• •lf• •fie -le •►i- •3E •x• •x• •I6 •lE •li• •3f• #• •k -x- •�• •x• it •►F -Ii• •k •k• •ii• �i- •k• •k •k• •li• # •x• �i• •)F ii• •x• •3r aE• •ii• -k• •k •14• •k• •li• aE• •ii-ir •!i- # •1i• •!i- •lE •k •li• FLOW PROCESS FROM NODE 135.10 TO NODE 110.00 IS CODE = 8 ----------------------------------------------------------------------------- )>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.292 - - SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .7128 SUBAREA AREA(ACRES) = 7.10'v SUBAREA RUNOFF(CFS) = 11.60 TOTAL AREA(ACRES) = 176.40 TOTAL RUNOFF(CFS) = 324.68 TC(MIN) = 19.06 at• •ia •�•-k• •3r •!i• iE• •k if• •x• •k ii•li• 9i• -x• �i• # •!i -•k• •ii••� d4• �• �li-•k-•3E• •�i• •li• •3� •)E• •i�• •)t• # •li•-1f-ii• ai--lE-x•-1i• •!i -ii• •3F •N• �i•-li•�E •14• �r�E• •!� •if• if•-�• •)i• •k•1r •3i• -DF •iE •�i• •!i• •1i• •ii••li••�i�•1E• ii• •lE• •�• iF •k -x• •� •li• •lE• FLOW PROCESS FROM !NODE 110.00 TO !NODE 120.00 IS CODE = 3 ----------------------------------------------------------------------------- >>>>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<( ))>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)((<<( DEPTH OF FLOW IN 76.0 INCH PIPE IS 60.0 INCHES PIPEFLOW VELOCITY(FEET•/SEC.) = 11.9 UPSTREAM NODE ELEVATION = 1218.50 DOWNSTREAM NODE ELEVATION = 1.215.20 FLOWLENGTH (F F_.ET) = 720.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 78.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 324.66 TRAVEL TIME (MIN.) = 1.01 TC(MIN.) = 20.07 FLOW PROCESS FROM NODE 120.40 TO NODE 120.00 IS CODE = 8 ------------------------------------------------------------------------------ >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<<(< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.222 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF,96EFFICIENT = .8217 SUBAREA AREA(ACRES) _ .60 SUBAREA RUNOFF(CFS) = 1.10 TOTAL AREA(ACRES) = 177.00 TOTAL RUNOFF(CFS) = 325.78 TC(MIN) = 20.07 FLOW PROCESS FROM NODE 120.30 TO NODE 120.00 IS CODE = 8 -..--------------------------------------------------------------------------- >?>>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.222 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8217 SUBAREA AREA(ACRES) _ .50 / SUBAREA RUNOFF(CFS) = .91 TOTAL AREA(ACRES) = 177.50 TOTAL RUNOFF(CFS) = 326.69 TC(MIN) = 20.07 •►_9F9i-•ii•di•K.•#•###•x•#•x•##•#-k••x••x•#ii-#•k•x•#•##•#•###•1i••IE#•x•####-#•#•#•##•###•##•lF###•it•#•#••k•##•#-##•li•#••it##•li-#•#•ii•#•#•#•## FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 -.------•---------------------------------------------------------------------- >>>>)DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 20.07 RAINFALL INTENSITY (INCH./HOUR) = 2.22 TOTAL STREAM AREA (HCRES) = 177.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 326.69 FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 7 _----------- >>>)>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 13.76 RAIN INTENSITY(INCH/HOUR) = 2.78 LAI C TOTAL AREA(ACRES) = 34.40 TOTAL RUNOFF(CFS) = 56.67 1F•#•#•###••it•#•k••x•##•3E#•#•#•#-•3F##••�•#••k•#•#•#•#•k#•�F•###•##•#if•#•k•##••�f••ii•#••3E••x•#-##-###•#•#•#�E•##iE#•###••R•if-######de••x•##•# FLOW PROCESS FROM NODE 120.00 TO NODE 120.00 IS CODE = 1 ----------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< )>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES(<((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 5 ARE: TIME OF CONCENTRATION(MINUTES) = 13.78 RAINFALL INTENSITY (INCH./HOUR) = 5.76 TOTAL STREAM AREA (ACRES) = 34.40 TOTAL. STREAM RUNOFF (CFS) AT CONFLUENCE _ 56.67 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (141N.) (INCH/HOUR) ---------•------------------------------------------------------------------- 1 326.69 20.07 5.552 2 58.67 13.76 2.765 RAINFALL INT'ENSIT'Y AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 373.51 282.96 COMP'U'TED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) _ 373.51 TIME (MINUTES) _ 20.071 TOTAL AREA(ACRES) _ 211.90 �E• •h 4F •i:• •�• •36 �• •3t •K• •� •k•-1(-•lf• •k• •li• •lE •K• 9f• -k• •k --k• aF •IE iF •li- iE• �••�i• ii• •lE •3E � iF •K• •3i•dE •�• iE 9f• 9t• •K• dF •Yi• iF •!E dE• •k !i• •1F •!F-)E••x- •x• •iF * #• •iF #• � •ii -di• •k• •li• � � •�• 9i• •k• •lt• 9E• •R• •k• 9e• •iE •h-� FLOW PROCESS FROM NODE 120.00 TO NODE 140.00 IS CODE = 3 >)?r>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<( >)>>>USING COMPUTER -ESTIMATED PIPESIZE (NON -PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 66.0 INCH PIPE IS 50.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 19.4 UPSTREAM NODE ELEVATION = 1215.20 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH(FEET) = 600.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 66.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS> = 373.51 TRAVEL TIME (MIN.) _ .52 TC (MIN.) = 20.59 •lE •!r � •It• •k •3f• 9r •!i• •k iF #• � •li• •li-•lf• •ii• •!i• •� ii -•1i• •!E * i?•k--)f-•k •li• •irdE •)E• •1F •lE• •iF •lE• •k •!t• •!i• •k• •x• ii••k• dF •iF�t• �i• •k •iE• 9i• •k•dt• •k di• •x- •)i -ii• -x- •lf•li• -k •tb •11••11• •�f• •�• •x• ii -•k •�i• •ii• •�i• •li• •�F•k• •k• •tf••k FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- ?>?>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.59 RAINFALL INTENSITY (INCH./HOUR) = 2.19 TOTAL STREAM AREA (ACRES) = 511.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 373.51 �E• di• •IF •k• •lE 9F 9i- ii• •1r ii• •li• it• -k• •it --k• •li• �E• �• di• •ii• et• •� •k di-di-� •IF iF •fE• •k• •!F• •k• -R• � •k ii• •3t-•li• •K• •k •3i• •!E # 9i -•!E 9i• •1i-�E• •)i• iF •Y• # •k• dE •IF •k• •1t••3i• •!i•-lf• •iF •!i• iE• •li• •IE• •k 3F •lf• iE••)F• •k• •)i• �F iE••IF fie• FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- )>>>)USER SPECIFIED HYDROLOGY INFORMATION AT NODE(<(<< -------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: / � C� TC(MIN) = 17.09 RAIN INTENSITY(INCH/HOUR) = 2.45 L TOTAL AREA(ACRES) = 25.00 TOTAL RUNOFF(CFS) = 46.66 �E• •#• •k• at• •)f• # •le• �• •1(• di• •k # � •k• -� •ii• dE •iE• �• •k• •li• •li• dF •if• •k •iE ii• •li• ii• iE• •iE •3F dE• •fi• # •lE• •)E• •x� ii• •3i• •k• •�• •!E •�• •►E• •�i• •!i• ii• •�• -li• iE •!E if• •ii• -li- iE di• •ii• •li• •ii• •!E �i• •ii• •k •1i• # •li• •li- �E •IF •it di• •k- •!�• •k• •1E FLOW. PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE 'VALUES USED FOR INDEPENDENT STREAM ` ARE: TIME OF CONCENTRATION(MINUTES) = 17.09 RAINFALL INTENSITY (INCH./HOUR) = 2.45 TOTAL S'C'REAM AREA (ACRES) = 25.00 TOTAL STREAM RUNOFF ( CFS) AT CONFLUENCE. = 46.66 •x• •x• •� •r�• �• •r• �•-�• �i• �:• �• -� •� �:• •k• •� •x �•� ai• •��• ai-•k• •�-� ai• •��• �• •� •��• 9i- •3i• �• ai• •)E• �•�• •� •ii•�i• •� •� �i--lE •� •x• � •��• � •� �• �f•dE•# •li• •� �• •� •��• �• •k• de• •��• •� •� �•-►�• •��•-� �• •k• •� •� •�-� •� FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = 7 ---------------------------------------------------------------------------- >?)>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<<( USER-SPECIFIED VALUES ARE AS FOLLOWS:- TC(MIN) = 23.77 RAIN INTENSITY(INCH/HOUR) _ 2.01 TOTAL AREA(ACRES) = 17.20 TOTAL RUNOFF (CFS) = 28.53 LST FLOW PROCESS FROM NODE 140.00 TO NODE 140.00 IS CODE = i -._--------------------------------------------------------------------------- >)>?>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<( >>)>)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 23.77 RAINFALL INTENSITY (INCH. /HOUR) = 2.01 TOTAL STREAM AREA (ACRES) = 17.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 26.53 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER ----------------------------'7------------------------------------------------- (CFS) (MIN.) (INCH/HOUR) 1 373.51 20.59 2.189 2 46.66 17.09 2.447 3 28. 53 2 3. 77 2. 008 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 433.95 377.26 409.46 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS RUNOFF (CF•S) = 439.95 TIME (MINUTES) = 20.588 TOTAL AREA (ACRES) = 254.10 � a� tea;• •►�• •x• -�• �• �• � •k •►i• •�• •� � � •�••��• •��• •►�• •x--� •� -� ae •� •� •1i• dE •Ii• •�i• •k• •!i• ai�-� •x• •� •� •��• � •)f• •ii• # •��• •�• �• •� •� �• •x• �• �• •� �• �• •� �•�•-� �--k- � •� �• •��• •� �• •�• a�• •��• � �• •��• �i• •� •� FLOW PROCESS FROM NODE 140.00 TO NODE 606.00 IS CODE = 3 ?>>)?COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<((<< >))>)USING COMPUTER -ESTIMATED PIPESIZE <NON -PRESSURE FLOW)(((<< DEPTH OF FLOW IN 75.0 INCH PIPE IS 55.E INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.9 UPSTREAM NODE ELEVATION = 1208.10 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENOTH(FEET) = 620.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 439.9 TRAVEL TIME (MIN. ) _ .61 TC (MIN.) = 21.20 •k• �- •� •� �• •� �• •h• � at• � ai• •�• ae• •� •ii• 9i--� •� -� •��• •� •�•�• � �• 9f• •�•� ai• •� �•�•-x-•x•-� •� �• ai- •x•-� •�• •ii• -� •�-� •� a�•��• •�i• •� •� •��• •k--r�• •��• � •� a� •��• -ii- ai-•��• * •��• �r �• �• •� -� •�i• •�e-�• �• ai-•� FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 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) _ :1.20 RAINFALL INTENSITY (INCH./HOUR) _ 2.15 TOTAL STREAM AREA ( ACRES) = 254.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 439.95 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) --- 1 439.95 21.20 5.151 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CGNFLUENCED RUNOFF VALUES ARE AS FOLLOWS; 439.95 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 439.95 TIME (MINUTES) = 21.197 TOTAL AREA(ACRES) = 254.10 END OF RATIONAL METHOD ANALYSIS ,,, �� I -11- - -i,-,5ii%, -4%,,�-, - -,X -SN, -, I ,'. ",- II " - I :�� - -'l , , 1-11 1, -,N-M-;� --,- ...... 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