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HomeMy WebLinkAboutFoothill & Hemlockt 0 t t G 1 1 1 1 1 C J UN y 1y�9 CIVIL ENGINEERING • LAND PLANNING • LAND SURVEYING HYDROLOGY CALCULATIONS FOR FOOTHILL BOULEVARD AND HEMLOCK AVENUE PREPARED BY HALL & FOREMAN, INC. 3170 REDHILL AVE. COSTA MESA, CA 92626 (714) 641 -8777 FEBRUARY 13, 1989 JOB NO. 3810 -00 C ` /VE GISTERED CIVIL v INEER (i 3170 REDHILL AVENUE • COSTAMESA, CALIFORNIA 9262 6-3428 • (714) 641.8777 n ml HYDROLOGY FOR FOOTHILL AVENUE &HEMLOCK AVENUE 0 F �111 I n Z [I t FOOTHILL AVENUE & HEMLOCK AVENUE HYDROLOGY INDEX 3 Storm Drain t FOOTHILL AVENUE & HEMLOCK AVENUE HYDROLOGY INDEX 5 - Hydrology Map. C] 1 - Foothill Storm Drain Hydrology, including all lines and laterals 0-25- 100 -yr, 100 -yr for part of Line J, rest Q25-yr. 2 - Foothill Storm Drain Hydrology for Areas 987, 986, 985 and 984. z 3 - Foothill Storm Drain Hydrology for Areas 987.1, 998.3, 998.2, 985.1, 998.5, 998.4, 981.1, 998.6. 4 - Foothill Storm Drain Hydrology, analysis for Nodes 91, 92, y gy, confluence anal 93, & 94. 5 - Hydrology Map. C] �]7, Foothill Storm Drain Hydrology, including all lines and laterals Q25- 100 -yr, 100 -yr for part of Vne J, rest Q25 - yr. i� P. hI- L 0 a Pm L J RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM EASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (C) Copyright 1982 Advanced Engineering Software CAES3 Especially prepared for: HALL & FOREMAN, INC. * * * * * * * ** *DESCRIPTION OF RESULTS * * * * * * * * * * * * * * * * * * * * * ** * FOOTHILL S.D. HYDROLOGY FROM 998 TO 609 INCLUDING ALL LINES AND LATERALS * Q 25 -100 YR, 100 YR FOR PART OF LINE J REST 0 25 YR * V. N. /J. M. , JN 3810 -00, i/26/1989, "DSK JOE #2 FILE "D" " d F, L ----------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.1520 SLOPE OF INTENSITY DURATION CURVE _ .6000 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) _ .980 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.470 SBC HYDROLOGY MANUAL "C "- VALUES USED Advanced Engineering Software CAES] SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5 /01/85 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 998.00 TO NODE 122.00 IS CODE = 2 ---------------------------------------------------------------------------- )))} }RATIONAL METHOD INITIAL SUBAREA ANALYSIS < { < <{ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *C(LENGTH * *3) /(ELEVATION CHANGE)3* *.2 INITIAL SUBAREA FLOW - LENGTH = 1000.00 UPSTREAM ELEVATION = 1288.00 DOWNSTREAM ELEVATION = 1264.00 ELEVATION DIFFERENCE = 24.00 TC = . 303* E ( 1000.00 * *3> f < 24.00) 3 * *. 2 = 10.128 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.350 SOIL CLASSIFICATION IS "A" COEFFICIENT = .8312 6 FLOW PROCESS FROM NODE 122.00 TO NODE 121.00 IS CODE = 3 ---------------------------------------------------------------------------- )>)) UT PTPEFLOW TRAVELTIME THRU SUBAREA < < < << )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)( << << pq DEPTH OF FLOW IN 27.0 INCH PIPE IS 21.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 7.1 UPSTREAM NODE ELEVATION = 1264.00 DOWNSTREAM NODE ELEVATION = 1262.00 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 23.67 TRAVEL TIME(MIN.) _ .71 TC(MIN.) = 10.84 FLOW PROCESS FROM NODE 997.00 TO NODE 121.00 IS CODE = 8 ---------------------------------------------------------------------------- _ -- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.217 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8304 SUBAREA AREA(ACRES) = 8.80 SUBAREA RUNOFF(CFS) = 23.51 TOTAL AREA(ACRES) = 17.30 TOTAL RUNOFF(CFS) = 47.18 TC(MIN) = 10.84 FLOW PROCESS FROM NODE 121.00 TO NODE 120.00 IS CODE = 3 ----------------------------- - - - - -- ------------------------------ • r---- - - - - -- MR )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)((((( DEPTH OF FLOW IN 36.0 INCH PIPE IS 27.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.0 UPSTREAM NODE ELEVATION = 162.00 DOWNSTREAM NODE ELEVATION = 1260.00 FLOWLENGTH(FEET) = 340.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 47.18 TRAVEL TIME(MIN.) _ .71 TC(MIN.) = 11.54 FLOW PROCESS FROM NODE 996.00 TO NODE 10.00 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.097 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8297 SUBAREA AREA(ACRES) = 4.50 SUBAREA RUNOFF(CFS) = 11.56 TOTAL AREA(ACRES) = 21.80 TOTAL RUNOFF(CFS) = 58.74 TC(MIN) = 11.54 FLOW PROCESS FROM NODE 120.00 TO NODE 95.00 IS CODE = 3 )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA( < < << DEPT OF FLOW IN 42.0 INCH PIPE I5 29.1 INCHES 7 PIPEFLOW VELOCITY(FEET /SEC.) = 8.3 UPSTREAM NODE ELEVATION = 1260.00 DOWNSTREAM NODE ELEVATION = 1258.00 FLOWLENGTH(FEET) = 360.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 58.74 TRAVEL TIME (MIN.) = .77 TC (MIN.) = 12.31 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 1 )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < <( << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.31 RAINFALL INTENSITY (INCH. /HOUR) = 2.98 TOTAL STREAM AREA (ACRES) = 21.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 58.74 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 998.10 TO NODE 95.00 IS CODE = 2 )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS <(((< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *C(LENGTH * *3) /(ELEVATION CHANGE)3 * *.2 INITIAL SUBAREA FLOW- LENGTH = 1300.00 UPSTREAM ELEVATION = 1267.00 DOWNSTREAM ELEVATION = 1258.00 ELEVATION DIFFERENCE = 9.00 TC = .303* C ( 1300. 00 * *3) / ( 9.00) 3 * *. 2 = 14.425 25.00 YEAR RAINFALL INTENSITY ( INCH /HOUR) = 2.709 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8268 SUBAREA RUNOFF(CFS) = 4.01 TOTAL AREA(ACRES) = 1.79 TOTAL RUNOFF(CFS) = 4.01 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 1 )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(( <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.42 RAINFALL INTENSITY (INCH. /HOUR) = 2.71 TOTAL STREAM AREA (ACRES) = 1.79 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.01 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 998.11 TO NODE 95.00 IS CODE = 2 )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS( < < << ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K* C (LENGTH * *3) / (ELEVAT I ON CHANGE) 3 * *. 2 INITIAL SUBAREA FLOW- LENGTH = 1300.00 UPSTREAM ELEVATION = 1267.00 TC = . 303* 11 1300. 00 * *3l / ( S. 10011**, 2 = 14,425 8 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.709 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8268 SUBAREA RUNOFF(CFS) = 4.03 TOTAL AREA(ACRES) = 1.80 TOTAL RUNOFF(CFS) = 4.03 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 1 ---------------------------------------------------------------------------- cl >))) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE( <((< )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES < < < << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.42 RAINFALL INTENSITY (INCH. /HOUR) = 2.71 TOTAL STREAM AREA (ACRES) = 1.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.03 po CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- I "' 1 58.74 12.31 2.980 iw 2 4.01 14.42 2.709 3 4.03 14.42 2.709 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 65.60 61.45 61.45 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 65.60 T I ME (MINUTES ) = 12.310 TOTAL AREA (ACRES) = 25.39 FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = f ---------------------------------------------------------------------------- ) >> ))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < < << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 12.31 RAINFALL INTENSITY (INCH. /HOUR) = 2.98 TOTAL STREAM AREA (ACRES) = 25.39 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 65.60 FLOW PROCESS FROM NODE - - 95.00 TO NODE - -- - 95_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) = 12.31 RAINFALL INTENSITY (INCH. /HOUR) = 2.98 TOTAL STREAM AREA (ACRES) = 25.39 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 65.60 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR i STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 65.60 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 65.60 TIME(MINUTES) = 12.310 TOTAL AREA(ACRES) = 25.39 FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 7 ---------------------------------------------------------------------------- )))) )USER SPECIFIED HYDROLOGY INFORMATION AT NODE < <( << ssasasssaaaaaaa =ssaa sass= ss== xssxsxxxxxxxxxxxxxxxx xxxxs= xs =ss =__ === co= =x=x =s USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 16.05 RAIN INTENSITY(INCH /HOUR) = 2.54 TOTAL AREA(ACRES) = 77.77 TOTAL RUNOFF(CFS) = 169.45 FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE 1 )))> )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE << (<< - )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES <( < << ass= asssaxsxxxxxxxxsxxxxxsxxsxxsssssxsxmssxT Sxxx= sxxxxxsx== xxxo== cxsxx = = = = =c CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.05 RAINFALL INTENSITY (INCH. /HOUR) = 2.54 TOTAL STREAM AREA (ACRES) = 77.77 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 169.45 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 65.60 12.31 2.980 2 169.45 16.05 2.541 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SSC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 195.56 225.40 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 2125.40 TIME(MINUTES) 16.050 TOTAL AREA(ACRES) = 103.16 G u FLOW PROCESS FROM NODE 95.00 TO NODE 94.00 IS CODE = 3 ))) ))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA( < < <( )))> )USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) <<( << DEPTH OF FLOW IN 72.0 INCH PIPE I S 56.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.5 UPSTREAM NODE ELEVATION = 1258.00 DOWNSTREAM NODE ELEVATION = 1256.00 FLOWLENGTH(FEET) = 610.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 72.00 PIPEFLOW THRU SUBAREA(CFS) = 225.40 TRAVEL TIME(MIN.) = 1.07 TC(MIN.) N = .013 NUMBER OF PIPES = = 17. 12 �v ---------------------------------------------------------------------------- ) ))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<< << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.445 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8243 SUBAREA AREA (ACRES) = 8.00 SUBAREA RUNOFF(CFS) = 16.12 TOTAL AREA(ACRES) = 111.16 TOTAL RUNOFF(CFS) = 241.52 TC(MIN) = 17.12 an FLOW PROCESS FROM NODE 587.10 TO NODE 34.00 IS CODE = 8 ---------------------------------------------------------------------------- )))) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << = xss= xsssssxxnzxxxxaaasxsssaaassasaasaaassssxssxssssx =xxs= axsxos= aaoxssxs = == 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.445 pq SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8243 SUBAREA AREA(ACRES) _ .90 SUBAREA RUNOFF(CFS) = 1.81 TOTAL AREA(ACRES) = 112.06 TOTAL RUNOFF(CFS) = 243.33 TC (MIN) = 17.12 FLOW PROCESS FROM NODE 94.00 TO NODE 93.00 IS CODE = 3 ---------------------------------------------------------------------------- ))) ))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < (<<< )) >) )USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) < < < << sxaxsaaaaassasxaasssssssssssssses= s= sss= sssss= ssssaxssscsssssss= sssss= sm = = = ==_ DEPTH OF FLOW IN 63.0 INCH PIPE IS 46.8 INCHES 2 PIPEFLOW VELOCITY(FEET /SEC.) = 14.1 UPSTREAM NODE ELEVATION = 1256.00 DOWNSTREAM NODE ELEVATION 1250.00 FLOWLENGTH(FEET) = 690.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 63.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) _ 243.33 TRAVEL TIME (MIN. ) =' .82 TC (MIN. ) 17.53 FLOW PROCESS FROM NODE 986.00 TO NODE 53.00 IS CODE = e ---------------------------------------------------------------------------- ))) ))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < <<< == assossoxsxsx =s= sax= a= aa== ssaa= sxx= sxxaxassasss= sss= sxossosooss= s= o== ssss =ss 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 2.378 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8235 SUBAREA AREA(ACRES) = 8.90 SUBAREA RUNOFF(CFS) = 17.43 TOTAL AREA(ACRES) = 120.56 TOTAL RUNOFF(CFS) = 260.76 TC (MIN) = 17.93 - - FLOW PROCESS FROM NODE 598.20 TO NODE 93.00 IS CODE = 8 )))) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) - 2.378 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8235 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 3.92 TOTAL AREA(ACRES) 122.96 TOTAL RUNOFF(CFS) = 264.68 TI^ fmrA11 = 17- Q1 n M it t7 .Y. yy .]G i.1 y .y.L y y Y l y y.L JL JL y y y .Y. yy1y .y yY y y Y. yy y y yy y l Y / FLOW PROCESS FROM NODE 998.30 TO NODE 93.00 IS CODE = 8 ---------------------------------------------------------------------------- )) >)) ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.$0 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.378 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8235 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.15 TOTAL AREA(ACRES) = 124.06 TOTAL RUNOFF(CFS) = 266.83 TC(MIN) = 17.93 FLOW PROCESS FROM NODE 93.00 TO NODE 92.00 IS CODE = 3 ------------------------------------------------------ )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < < << > > >)) USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE DEPTH OF FLOW IN 66.0 INCH PIPE IS 49.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.9 UPSTREAM NODE ELEVATION = 1250.00 DOWNSTREAM NODE ELEVATION = 1245.00 FLOWLENGTH(FEET) = 630.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) 66.00 NUMBER OF PIPEFLOW THRU SUBAREA(CFS) 266.83 TRAVEL TIME (MIN. ) _ .75 TC(MIN.) = 18.69 FLOW) <<< << PIPES = 1 FLOW PROCESS FROM NODE 985.00 TO NODE 92.00 IS CODE = 8 )))) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.320 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8229 SUBAREA AREA(ACRES) = 7.90 SUBAREA RUNOFF(CFS) = 15.08 TOTAL AREA(ACRES) = 131.96 TOTAL RUNOFF(CFS) 281.91 TC(MIN) = 18.69 FLOW PROCESS FROM NODE 985.10 TO NODE 92.00 IS CODE = 8 )) >) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << x.. smsaxxxxxsoscaaaaxxxax == a === asss == xxxaxaaxxs = =cx xxx = =o= cx ___xxx = =o= _ = =e = =c 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) _ 2.320 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8229 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 1.91 TOTAL AREA(ACRES) 132.96 TOTAL RUNOFF(CFS) = 283.82 TC(MIN) = 18.69 FLOW PROCESS FROM NODE 92.00 TO NODE 91.00 IS CODE = 3 >))) )COMPUTE PiPEFLOW TRAVELTIME THRU SUBAREA<(<(< ))) ))USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) << < << DEPTH OF FLOW IN 75.0 INCH PIPE 1S 56.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.5 UPSTREAM NnnF ELEVATION = 1245.00 L�STlMATED PIPE DIAMETER(INCH) = 75.00 NUMBER OF PIPES = 1 / � PIPEFLOW THRU SUBAREA(CFS) = 283.82 TRAVEL TIME(MIN.) = .96 TC<M%N.> = 19.65 **************************************************************************** FLOW PROCESS FROM NODE 984.00 TO NODE 91.00 IS CODE = 8 )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.251 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8221 SUBAREA AREA(ACRES) = 6.00 SUBAREA RUNOFF(CFS) = 11.10 TOTAL AREA(ACRES) = 138.96 TOTAL RUNOFF(CFS) = 294.92 TC(MIN) = 19.65 **************************************************************************** FLOW PROCESS FROM NODE 998.50 TO NODE 91.00 IS CODE = 8 >>}}>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< = 25.00 YEAR RAINFALL INTEN��%TY(INCH/HOUR) = 2 ^ 251 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8221 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = 2.04 TOTAL AREA(ACRES) = 140.06 TOTAL RUNOFF(CFS) = 296.96 TC(MIN) = 19.65 **************************************************************************** FLOW PROCESS FROM NODE 998.40 TO NODE 91.00 IS CODE = 8 )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<< 25.00 YEAR RAINFALL INTENS%lFY(INCH/HOUR) = 2.251 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8221 SUBAREA AREA(ACRES) = 2.10 SUBAREA RUNOFF(CFS) = 3.89 TOTAL AREA(ACRES) = 142.16 TOTAL RUNOFF(CFS) = 300.84 TC(MIN) = 19.65 ************************w*************************************************** ■ FLOW PROCESS FROM NODE 91.00 TO NODE 91.00 IS CODE = 1 }}>>}DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< = = CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 19.65 RAINFALL INTENSITY <INCH./HOUR) = 2.25 TOTAL STREAM AREA (ACRES) = 142.16 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 300.84 **************************************************************************** FLOW PROCESS FROM NODE 91.00 TO NODE 91.00 IS CODE = 7 }}}})USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.29 RAIN INTENSITY(INCH/HOUR) = 2.62 TOTAL AREA(ACRES) = 35.20 TOTAL RUNOFF(CFS) = 76.00 n 0 Cl dl'Ie iF'!e lf'!F if' lEie'!f' de ae dE ie i@' ii" K" lf'. K.' if' �!' x"! f" 1E" ii" IE"K"x"li'�i"k'x"�f"x"lf"!('lE �' IE' iF'l E"! f" �l" x"1 F' IF'l E' 1E' 1F' iF'! f' 1E1FlF'lE'IE�ElE'1r'li"!f'lf'IE iFiE' !("lE'K'�i'.IE�E.'x"K"K'.lf.'x' FLOW PROCESS FROM NODE 91.00 TO NODE 91.00 IS CODE = i ---------------------------------------------------------------------------- >) >) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((( << aaaasasaaasssxa= x= x= s: a= ssaasaa== aaxaaa= asaaasa == aaass= == aaaa.a =s=ax ssaxaaaa == =ass CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 15.29 RAINFALL INTENSITY (INCH. /HOUR) = 2.62 TOTAL STREAM AREA (ACRES) - 35.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 76.00 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- 1 300.84 19.65 2.251 2 76.00 15.29 2.617 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 366.22 310.10 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 366.22 TIME(MINUTES) = 19.648 TOTAL AREA(ACRES) = 177.36 FLOW PROCESS FROM NODE 91.00 TO NODE 90.00 IS CODE = 3 ---------------------------------------------------------------------------- > >)> )COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA <<((( )))) )USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < <<(< aasaaaaaas sass== aa= a= astasaasas: a= sx axa==== x== xoaa= mca= as= c= s= c===== _===== nox = = == DEPTH OF FLOW IN 72.0 INCH PIPE IS 55.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 15.7 UPSTREAM NODE ELEVATION = 1242.00 DOWNSTREAM NODE ELEVATION = 1230.00 FLOWLENGTH(FEET) = 1340.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 72.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) 366.22 TRAVEL TIME(MIN. ) = 1.42 TC(MIN. ) = 21.07 FLOW PROCESS FROM NODE 980.00 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- >) > >) ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.159 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF.COEFFICIENT = .8209 SUBAREA AREA(ACRES) = 9.60 SUBAREA RUNOFF(CFS) = 17.01 TOTAL AREA(ACRES) = 186.96 TOTAL RUNOFF(CFS) = 383.23 TC(MIN) = 21.07 FLOW PROCESS FROM NODE 998.60 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------------- ) >)) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.159 Qn s l r l ❑I;G T Ir T r0T T nN T S "A" TOTAL AREA ( ACRES ) = 189.21 TOTAL RUNOFF(CFS) = 387.22 TC (MIN) = 21.07 FLOW PROCESS FROM NODE 981.00 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------- - - - - -- )))) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<< < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.159 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8209 SUBAREA AREA(ACRES) = 15.30 SUBAREA RUNOFF <CFS) = 27.11 TOTAL AREA(ACRES) = 204.51 TOTAL RUNOFF(CFS) = 414.33 TC (MIN) = 21.07 FLOW PROCESS FROM NODE 981.10 TO NODE 90.00 IS CODE = 8 ---------------------------------------------------------------------- - - - - -- ) )) >) ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) _ 2.159 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8209 SUBAREA AREA(ACRES) = 2.25 SUBAREA RUNOFF(CFS) = 3.99 TOTAL AREA(ACRES) _ 206.76 TOTAL RUNOFF(CFS) = 418.32 TC (MIN) = 21.07 p FLOW PROCESS FROM NODE 90.00 TO NODE 90.00 IS CODE = 1 ---------------------------------------------------------------------------- ))) ))DESIGNATE INDEPENDENT STREAM FOR CONFLUENC:E(<( << = a= asm.= ssaaasasaxs= x== aa= mammsa= xxs=== x====== m=sssxxxox == === _____=== x= = = = =__ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) 21.07 �w RAINFALL INTENSITY (INCH. /HOUR) = 2.16 TOTAL STREAM AREA (ACRES) 206.76 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 418.32 FLOW PROCESS FROM NODE 982.00 TO NODE 80.00 IS CODE = 2 >) >3 >RATiONAL METHOD INITIAL SUBAREA ANALYSIS < < < << __� --=== x==== =_- � • - - -_- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *C(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW- LENGTH = 1150.00 UPSTREAM ELEVATION = 1258.00 DOWASTREAM ELEVATION = 1243.00 ELEVATION DIFFERENCE = 15.00 TC = . 303* 1 ( 1150.00 * *3) / ( 15.00) 7 * *. 2 = 12.100 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.011 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8291 SUBAREA RUNOFF(CFS) = 28.71 TOTAL AREA(ACRES) = 11.50 TOTAL RUNOFF(CFS) = 28.71 FLOW PROCESS FROM NODE 80.00 TO NODE 90.00 IS CODE = 3 )) )) )USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) <<< << DEPTH OF FLOW IN 24.0 INCH PIPE IS 19.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.7 UPSTREAM NODE ELEVATION = 1243.00 DOWNSTREAM NODE ELEVATION = 1230.00 FLOWLENGTH(FEET) = 720.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.0+ NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 28.71 TRAVEL TIME (MIN. ) = 1.12 TC (MIN. ) = 13.22 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 CONCENTRATION(MINUTES) = 13.22 RAINFALL INTENSITY (INCH. /HOUR) = 2.86 TOTAL STREAM AREA (ACRES) = 11.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 28.71 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 418.32 21.07 2.159 2 28.71 13.22 2.855 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 440.02 291.11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF ( CFS ) = 440.02 TIME(MINUTES) _ 211.070 TOTAL AREA(ACRES) = 218.26 L w FLOW PROCESS FROM NODE 90.00 TO NODE 980.20 IS CODE = 3 ---------------------------------------------------------------------------- >))) )COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA( < (<< ) >) ))USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW)<< <(( DEPTH OF FLOW IN 84.0 INCH PIPE IS 65.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.7 UPSTREAM NODE ELEVATION = 1230.00 DOWNSTREAM NODE ELEVATION = 1229.50 FLOWLENGTH(FEET) = 90.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 84.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 440.02 TRAVEL TIME (MIN. ) _ .11 TC (MIN. ) = 21.18 - - FLOW - PROCESS - FROM_ NODE - -- 980_20 - TO NODE--- 980__0 -IS- CODE i - =- _- _______ - - - -- )))) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE <( <<< - CONFLUENCE - VALUES - USED - FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 21.18 /o **************************************************************************** FLOW PROCESS FROM NODE 980.10 TO NODE 980.20 IS CODE = 2 >}>}}RAT1ONAL METHOD INITIAL SUBAREA ANALYSIS<<M ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K*C(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1270.00 UPSTREAM ELEVATION = 1248.00 DOWNSTREAM ELEVATION = 1229.50 ELEVATION DIFFERENCE = 18.50 TC = .303*[( 1270.00**3)/( 18.50}]**.2 = 12.315 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.979 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8289 SUBAREA RUNOFF(CFS) = 4.69 TOTAL AREA(ACRES) = 1.90 TOTAL RUNOFF(CFS) = 4.69 **************************************************************************** FLOW PROCESS FROM NODE 980.20 TO NODE 980.20 IS CODE = 1 >>>>}DE8IGNATE INDEPENDENT STREAM FOR CONFLUENCE<<(<( }>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<(( =_____ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.31 RAINFALL INTENSITY (INCH./HOUR) = 2.98 TOTAL STREAM AREA (ACRES) = 1.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 4.69 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) 1 440.02 21.18 2.152 2 4.69 12.31 2.979 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 443.40 260.55 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 443.40 TIME(MINUTES) = 21.179 TOTAL AREA(ACRES) = 220.16 **************************************************************************** FLOW PROCESS FROM NODE 980.20 TO NODE 603.10 IS CODE = 3 )))))COMPUTE PIPEFLOW TRAVELTlME THRU SUBAREA(<<<< >>>)>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)(<(<( =______ _ ___________ DEPTH OF FLOW IN 81.0 INCH PIPE IS 63.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.7 UPSTREAM NODE ELEVATION = 1229.50 DOWNSTREAM NODE ELEVATION = 1221.00 FLOWLENGTH(FEET) = 1270.00 MANNlNGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 81.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 443.40 TRAVEL TIME(MIN,) = 1.44 TC(MTN,) = 22.52 •ii dE •IEiF •!i• iF iF�irdE k i6 dE•ie�Eii iF •3e••lf• •iE•IF ii• •k if•�F-1F-k � •iF iF•!F it i6li •l(• � •1F•!t• •IF•ie kdE iF•lE•iE•iE•lE •iF•IE dE dEie •iEk iF * •k iE�E dE-iF � iE •IE •!E ie lE iElE9i•!F •IE �lE•IiiE FLOW PROCESS FROM NODE 603.00 TO NODE 603.10 IS CODE = 8 )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW <( < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.069 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8196 SUBAREA AREA(ACRES) = 17.30 SUBAREA RUNOFF(CFS) = 29.33 TOTAL AREA(ACRES) = 237.46 TOTAL RUNOFF(CFS) = 472.74 TC(MIN) = 22.62 FLOW PROCESS FROM NODE 998.70 TO NODE 603.10 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( << << 25.00 YEAR RAINFALL INTENSITY ( INCH /HOUR) = 2.069 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8196 SUBAREA AREA(ACRES) = 4.20 SUBAREA RUNOFF(CFS) = 7.12 TOTAL AREA(ACRES) = 241.66 TOTAL RUNOFF(CFS) = 479.86 TC(MIN) = 22. FLOW PROCESS FROM NODE 603.10 TO NODE 603.10 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE << < << == ,= xaxa == axes= sxs== a==- aa= a= aeaaaaasaaaxox= xa= xaxs ===== caocc= c______________ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 22.62 RAINFALL INTENSITY ( I NCH. /HOUR) = 2.07 TOTAL STREAM AREA (ACRES) 241.66 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 479.86 on FLOW PROCESS FROM NODE 603.10 TO NODE 603.10 IS CODE = 7 - ---------------------------------------------------------------------------- )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE <<< << USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 21.67 RAIN INTENSITY(INCH /HOUR) = 2.12 TOTAL AREA(ACRES) = 617.41 TOTAL RUNOFF(CFS) = 1134.13 FLOW PROCESS FROM NODE 603.10 TO NODE 603.10 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) _ 21.67 RAINFALL INTENSITY (INCH. /HOUR) = 2.12 TOTAL STREAM AREA (ACRES) = 617.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1134.19 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH/HOUR) ---------------------------------- - - - - -- �u RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 1585.28 1693.93 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 1593.93 TIME(MINUTES) = 21.670 TOTAL AREA(ACRES) = 859.07 FLOW PROCESS FROM NODE 603.10 TO NODE 604.10 IS CODE = 3 ---------------------------------------------------------------------------- ))!))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((<<( )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)( << << DEPTH OF FLOW IN 144.0 INCH PIPE IS 108.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 17.4 UPSTREAM NODE ELEVATION = 1221.00 DOWNSTREAM NODE ELEVATION = 1215.00 FLOWLENGTH(FEET) = 1370.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 144.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 1593.93 TRAVEL TIME (MIN. ) = 1.31 TC(MIN.) = 22.98 FLOW PROCESS FROM NODE 604.00 TO NODE 604.10 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(( <<< - 25.00 YEAR - RAINFALL INTENSITY(INCH /HOUR) = 2.049 - SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8193 SUBAREA AREA(ACRES) = 16.30 SUBAREA RUNOFF(CFS) = 27.36 i TOTAL AREA(ACRES) = 875.37 TOTAL RUNOFF(CFS) = 1621.30 TC(MIN) = 22.98 FLOW PROCESS FROM NODE 604.30 TO NODE 604.10 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( < < <( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.049 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8193 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 3.19 TOTAL AREA(ACRES) = 877.27 TOTAL RUNOFF(CFS) = 1624.49 TC(MIN) = 22.98 FLOW PROCESS FROM NODE 998.80 TO NODE 604.10 IS CODE = 8 -------------------- -------------------------------------------------------- > }!} }ADDITION OF SUBAREA Tfl MAINLINE PEAK FLOW << <(< 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.049 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8133 SUBAREA AREA(ACRES) = 4.20 SUBAREA RUNOFF(CFS) = 7.06 TOTAL AREA(ACRES) = 881.47 TOTAL RUNOFF(CFS) = 1631.54 TC(MIN) = 22.98 r L_ uw r'llQL,Qaa r 11 uf'i P4uuc OkO a+t+ I U Nuida emu A +. IV 1 �3 t.,UIJa - is / } >)) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.049 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8193 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 2.01 TOTAL AREA(ACRES) = 882.67 TOTAL RUNOFF(CFS) = 1633.55 TC (MIN) = 22.96 FLOW PROCESS FROM NODE 604.10 TO NODE 604.50 IS CODE = 3 ------------------------------ ---------------------------------------------- ) >))> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA( < <<( ))) ))USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)(< <<< DEPTH OF FLOW IN 126.0 INCH PIPE IS 102.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 21.6 UPSTREAM NODE ELEVATION = 1215.00 DOWNSTREAM NODE ELEVATION = 1209.00 FLOWLENGTH(FEET) = 750.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 126.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 1633.55 TRAVEL- TIME (MIN. ) = .58 TC (MIN. ) = 23.56 FLOW PROCESS FROM NODE 604.50 TO NODE 604.50 IS CODE = 1 ---------------------------------------------------------------------------- ))))>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 23.56 RAINFALL INTENSITY (INCH. /HOUR) = 2.02 TOTAL STREAM AREA (ACRES) = 882.67 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1633.55 FLOW PROCESS FROM NODE 604.50 TO NODE 604.50 IS CODE = 7 ---------------------------------------------------------------------------- ))) })USER SPECIFIED HYDROLOGY INFORMATION AT NODE((((( USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 19.96 RAIN INTENSITY(INCH /HOUR) = 2.23 TOTAL AREA(ACRES) = 118.70 TOTAL RUNOFF(CFS) = 220.25 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 2 ARE: TIME OF CONCENTRATION(MINUTES) = 19.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.23 TOTAL STREAM AREA (ACRES) = 118.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 220.25 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY i i b.j,",. Zj 2=,3. b6 . V) I :' 2 220.25 19.96 2.230 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 1832.94 1604.16 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 1832.94 TIME(MINUTES) = 23.561 TOTAL AREA(ACRES) = 1001.37 FLOW PROCESS FROM NODE 604.50 TO NODE 605.00 IS CODE = 3 +� ---------------------------------------------------------------------------- )) )))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < <(( )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < <( << DEPTH OF FLOW IN 144.0 INCH PIPE IS 108.9 INCHES PIPEFLDW VELOCITY(FEET /SEC.) = 20.0 UPSTREAM NODE ELEVATION = 1209.00 DOWNSTREAM NODE ELEVATION = 1206.00 FLOWLENGTH ( FEET ) = 520.00 MANN I NGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 144.00 NUMBER OF PIPES = 1 PIPEFLDW THRU SUBAREA(CFS) = 1832.94 TRAVEL TIME(MIN.) = .43 TC(MIN.) = 23.99 FLOW PROCESS FROM NODE 605.10 TO NODE 605.00 IS CODE = 8 ---------------------------------------------------------------------------- �" )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.997 *! SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8185 SUBAREA AREA(ACRES) = 9.50 SUBAREA RUNOFF(CFS) = 15.52 OR TOTAL AREA(ACRES) = 1010.87 TOTAL RUNOFF(CFS) = 1848.46 TC(MIN) 23.99 FLOW PROCESS FROM NODE 998.90 TO NODE 605.00 IS CODE = 8 ---------------------------------------------------------------------------- -- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( < <(( aasasass = == scsaaasaasasaaa= as == s= a-aa == =as=s =aaa= =0000 sass=== c=== aa== s= = = == 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.997 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8185 SUBAREA AREA(ACRES) = 4.20 SUBAREA RUNOFF(CFS) = 6.86 TOTAL AREA(ACRES) = 1015.07 TOTAL RUNOFF(CFS) = 1855.33 TC(MIN) = 23.99 FLOW PROCESS FROM NODE 605.00 TO NODE 606.40 IS CODE = 3 ---------------------------------------------------------------------------- )))))COMPUTE PIPEFLDW TRAVELTIME THRU SUBAREA((( <( )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)((( << DEPTH OF FLOW IN 132.0 INCH PIPE IS 101.3 INCHES PIPEFLDW VELOCITY(FEET /SEC.) = 23.7 UPSTREAM NODE ELEVATION = 1206.00 DOWNSTREAM NODE ELEVATION 1204.00 P.L&'L'i'LLjw inrtLi UbHKtNi(:r ii = Idzib..,6.3 TRAVEL T I ME (MIN. ) _ .15 TC (MIN. ) = 24.15 FLOW PROCESS FROM NODE 606.20 TO NODE 606.40 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(( <<< 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.989 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = .6919 SUBAREA AREA(ACRES) = 10.00 SUBAREA RUNOFF(CFS) = 13.76 TOTAL AREA(ACRES) = 1025.07 TOTAL RUNOFF(CFS) = 1869.09 TC (MIN) = 24.15 L FLOW PROCESS FROM NODE 606.40 TO NODE 606.00 IS CODE = 3 ---------------------------------------------------------------------------- )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((( << E l i )))))USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)( <{ <( DEPTH OF FLOW IN 120.0 INCH PIPE IS 96.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.8 UPSTREAM NODE ELEVATION = 1204.00 DOWNSTREAM NODE ELEVATION = 1200.00 FLOWLENGTH(FEET) = 1150.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 120.00 NUMBER OF PIPES = 2 PIPEFLOW THRU SUBAREA(CFS) = 1869.09 TRAVEL TIME (MIN. ) = 1.39 TC (MIN. ) = 25.54 FLOW PROCESS FROM NODE 606.10 TO NODE 606.00 IS CODE = 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( <(<( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.923 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = .6865 SUBAREA AREA(ACRES) = 9.80 SUBAREA RUNOFF(CFS) = 12.94 TOTAL AREA(ACRES) = 1034.87 TOTAL RUNOFF(CFS) = 1882.03 TC (MIN) = 25.54 FLOW PROCESS FROM NODE 58_31 TO NODE - -- 606_00 IS- CODE - 8______ -_ - - -- )))) }ADDITION OF SUBAREA TO MAINLINE PEAK FLOW( < <(( 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.923 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8173 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = 1.26 TOTAL AREA(ACRES) = 1035.67 TOTAL RUNOFF(CFS) = 1883.28 TC (MIN) = 25.54 FLOW PROCESS FROM NODE 999.10 TO NODE 606.017 IS CODE = 8 -- --- }}})}ADDiT10N OF SUBAREA TO MAINLINE PEAK FLOW < < < {{ GUly' YtERC I AL OEVELOPMEN T HU14CFF CUEF="F l C l ENl' _ . B 1 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = 6.92 TOTAL AREA(ACRES) = 1040.07 TOTAL RUNOFF(CFS) = 1890.20 TC (MIN) = 25.54 FLOW PROCESS FROM NODE 606.00 - TO - NODE --- 606_00 - IS - CODE = --- 1 ---------------------------------------------------------------- . )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 85.54 RAINFALL INTENSITY (INCH. /HOUR) = 1.92 TOTAL STREAM AREA (ACRES) = 1040.07 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1890.20 pm FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 7 g )) > >)USER SPECIFIED HYDROLOGY INFORMATION AT NODE < <(<( USER - SPECIFIED VALUES ARE AS FOLLOWS: !'" TC(MIN) = 24.41 RAIN INTENSITY(INCH /HOUR) = 1.98 L TOTAL AREA(ACRES) = 246.10 TOTAL RUNOFF(CFS) = 402.75 FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 1 v ---------------------------------------------------------------------------- )))) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( >) > >)AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES <(( <( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) _ 24.41 RAINFALL INTENSITY (INCH. /HOUR) = 1.98 TOTAL STREAM AREA (ACRES) = 246.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 402.75 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 1890.20 25.54 1.923 2 402.75 24.41 1.976 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 2282.18 2209.44 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 2262.16 TIME(MINUTES) = 25.538 TOTAL AREA(ACRES) = 1286.17 FLOW PROCESS FROM NODE 606.00 TO NODE 607.20 IS CODE = 3 ---------------------------------------------------------------------------- ) ))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< )))))USING COMPUTER - ESTIMATED PIPESIZE (NON - PRESSURE FLOW) < << << DEPTH OF FLOW IN 144.0 INCH PIPE IS 111.5 INCHES "LJVVL �D .to ;0 . W vi NHNN L Nut) N el i _Q1 i r-a I ) = ESTIMATED PIPE DIAMETER(INCH) = 144.00 NUMBER OF PIPES = 3 PIPEFLOW THRU SUBAREA(CFS) = 2282.16 TRAVEL TIME (MIN.) = 1.09 TC(MIN.) = 26.63 FLOW PROCESS FROM NODE 58.20 TO NODE 607.20 IS CODE = a ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((<(( OR 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.876 F i 6 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .6823 SUBAREA AREA(ACRES) = 6.10 SUBAREA RUNOFF(CFS) = 7.81 TOTAL AREA(ACRES) = 1292.27 TOTAL RUNOFF(CFS) = 2289.98 TC(MIN) = 26.63 FLOW PROCESS FROM NODE 58.40 TO NODE 607.2e IS CODE = a ---------------------------------------------------------------------------- ')>)))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW(<(<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.876 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8165 SUBAREA AREA(ACRES) = 1.60 SUBAREA RUNOFF(CFS) = 2.45 TOTAL AREA(ACRES) = 1293.87 TOTAL RUNOFF(CFS) = 2292.43 TC(MIN) = 26.63 FLOW PROCESS FROM NODE 607.20 TO NODE. 607.10 IS CODE ,= 3 -------------------------------------------------------------------- )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA(((<( )))>)USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<(<( DEPTH OF FLOW IN 144.0 INCH PIPE IS 107.8 INCHES PIPEFLOW VELOCITY (FEET /SEC. ) = 8.4 UPSTREAM NODE ELEVATION = 1199.50 DOWNSTREAM NODE ELEVATION = 1198.70 iir FLOWLENGTH ( FEET ) = 780.00 MANN INGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 144.00 NUMBER OF PIPES = 3 PIPEFLOW THRU SUBAREA(CFS) = 2292.43 TRAVEL TIME(MIN.) = 1.55 TC(MIN.) = 28.17 FLOW PROCESS FROM NODE 58.00 TO NODE 607.10 IS CODE = a ---------------------------------------------------------------------------- )>>)>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<( 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.813 SOIL CLASSIFICATION IS "A" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .6765 SUBAREA AREA(ACRES) = 16.40 SUBAREA RUNOFF(CFS) = L0.12 TOTAL AREA(ACRES) = 1310.27 TOTAL RUNOFF(CFS) = 2312.55 TC(MIN) = 28.17 FLOW PROCESS FROM NODE 999.20 TO NODE 607.10 IS CODE = 8 C_ Z: . 4tLli4l T i = ri1'C )"KH 1 i'1i Hi_L 11 1 14 i Eii14 2 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 4.10 TOTAL AREA(ACRES) = 1314.37 TC(MIN) = 28.17 COEFFICIENT = .8153 SUBAREA RUNOFF(CFS) = 6.06 TOTAL RUNOFF(CFS) = 2318.61 FLOW PROCESS FROM NODE 607.10 TO NODE 607.00 IS CODE = 3 ---------------------------------------------------------------------------- >)) >) COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < (<< ))) ))USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) < < < << DEPTH OF FLOW IN 138.0 INCH PIPE IS 107.9 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.3 UPSTREAM NODE ELEVATION = 1198.70 FR DOWNSTREAM NODE ELEVATION = 1198.00 ki ld FLOWLENGTH(FEET) = 260.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 138.00 NUMBER OF PIPES = 2 PIPEFLOW THRU SUBAREA(CFS) = 2318.61 TRAVEL TIME(MIN.) _ .33 TC(MIN.) = 28.50 FLOW PROCESS FROM NODE 607.00 TO NODE 607.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < < << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 28.50 RAINFALL INTENSITY (INCH. /HOUR) = 1.80 TOTAL STREAM AREA (ACRES) = 1314.37 'TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2318.61 FLOW PROCESS FROM NODE 607.00 TO NODE 607.00 IS CODE = 7 ± ] -- -- -- -- - - - -- - - - - - -- --------- - - - - -- --------- - - - - -- - - - -- -- -- - - -- -- - - - - -- --- - - >))) )USER SPECIFIED HYDROLOGY INFORMATION AT NODE < < < << USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) 21.67 RAIN INTENSITY(INCH /HOUR) = 2.12 TOTAL AREA(ACRES) = 75.00 TOTAL RUNOFF(CFS) = 134.66 - _ FLOW - PROCESS - FROM - NODE - -- 607_00 - TO - NODE_ -- 607 _0O - IS - CODE 1 - _- _- - __--- -_ - - -- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE( (< << )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES( < < << CONFLUENCE VALUES USED - FOR - INDEPENDENT STREAM w + 2 = ARE: ____ _________________ TIME OF CONCENTRATION(MINUTES) = 21.67 RAINFALL INTENSITY (INCH. /HOUR) = 2.12 TOTAL STREAM AREA (ACRES) = 75.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 134.66 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) ( INCH /HOUR) ---------- ---------------- ------------------------------- - - - - -- 2318. 61 - 1.8 01 p t .. ^,A_ Arl Pt - A7 1 1P VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 2432.86 1897.58 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 2432.86 TIME(MINUTES) = 28.501 TOTAL AREA(ACRES) = 1389.37 FLOW PROCESS FROM NODE 607.00 TO NODE 608.00 IS CODE = 3 ---------------------------------------------------------------------------- )>)))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((<<< )>)))USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 132.0 INCH PIPE IS 100.9 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.6 UPSTREAM NODE ELEVATION = 1198.00 DOWNSTREAM NODE ELEVATION = 1195.00 FLOWLENGTH(FEET) = 760.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 132.00 NUMBER OF PIPES = 2 PIPEFLOW THRU SUBAREA(CFS) = 2432.66 TRAVEL TIME (MIN.) .81 TC(MIN.) = 29.31 FLOW PROCESS FROM NODE 608.10 TO NODE 608.00 IS CODE = 8 ---------------------------------------------------------------------------- pp, )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<(((( ,25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.771 SOIL CLASSIFICATION IS "A" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .4948 SUBAREA AREA(ACRES) = 10.10 SUBAREA RUNOFF(CFS) = 8.85 TOTAL AREA(ACRES) = 1399.47 TOTAL RUNOFF(CFS) = 2441.71 TC(MIN) = 29.31 FLOW PROCESS FROM NODE 999.30 TO NODE 608.00 IS CODE 8 ---------------------------------------------------------------------------- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<((< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 1.771 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8145 SUBAREA AREA(ACRES) = 3.50 SUBAREA RUNOFF(CFS) = 5.05 TOTAL AREA(ACRES) = 1402.97 TOTAL RUNOFF(CFS) = 2446.75 TC(MIN) 29.31 FLOW PROCESS FROM NODE 608.00 TO NODE 1.00 IS CODE 3 ---- ------- ---- ---- ------ -- ---- ---- -- ---- - >>)>)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<(<< )))))USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<(<< DEPTH OF FLOW IN 126.0 INCH PIPE IS 97.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 17.0 UPSTREAM NODE ELEVATION = 1195.00 DOWNSTREAM NODE ELEVATION 1194.00 FLOWLENGTH(FEET) = 200.00 MANNINGS N .013 ESTIMATED PIPE DIAMETER(INCH) = 126.00 NUMBER OF PIPES 2 PIPEFLOW THRU SUBAREA(CFS) = 2446.75 4 D FLOW PROCESS FROM NODE 1.00 TO NODE 1.00 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) = 29.51 RAINFALL INTENSITY (INCH. /HOUR) = 1.76 TOTAL STREAM AREA (ACRES) = 1402.97 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2446.75 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER --------- ) ----- (MIN_ -INCH! HOUR) ------------------------------ - - - - -- 1 2446.75 29.51 1.764 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR i STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 2446.75 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 2446.75 TIME(MINUTES) = 29.508 TOTAL AREA( ACRES) = 1402.97 END OF RATIONAL METHOD ANALYSIS 0 0 0 Fr, RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1583 HYDROLOGY MANUAL (C) Copyright 1982 Advanced Engineering Software CAES] Especially prepared for: HALL & FOREMAN, INC. * * * * * * * ** *DESCRIPTION OF RESULTS * * * * * * * * * * * * * * * * * * ** *** fir�l * LINE J HYDROLOGY FROM 872 TO 79, INPUT DATA FOR LINE J MAIN HYDROLOGY * 0 100 YR V.N. /J. M. , JN • 3810 -00, 2/14/1989, DSK "JOHN SIMS DISK 3" ------------------------------------------------------- - USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT(YEAR) = 100.00 PR 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 0 100 -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 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<(<(<<(<<))))))} ))))))} }>)}) }))) } }} }})}) })) }) }) Lm Advanced Engineering Software CAES] SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/65 FLOW PROCESS FROM NODE 87.00 TO NODE 48.00 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 = 670.00 UPSTREAM ELEVATION = 1302.00 DOWNSTREAM ELEVATION = 1291.50 ELEVATION DIFFERENCE = 10.50 TC = . 393* C ( 670. 00 * *3) / ( 10.50) ] * *. 2 = 12.172 100.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.828 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7678 28 FLOW PROCESS FROM NODE 48.00 TO NODE 51.00 IS CODE = 3 ---------------------------------------------------------------------------- )))> )COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( ))) ))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)((((( DEPTH OF FLOW IN 36.0 INCH PIPE IS 27.6 INCHES PIPEFLOW VELOCITY (FEET /SEC:. ) = 3.7 UPSTREAM NODE ELEVATION = 1291.50 DOWNSTREAM NODE ELEVATION 1291.00 FLOWLENGTH(FEET) = 400.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 21.46 r7l TRAVEL TIME (MIN. ) = 1.80 TC (MIN. ) = 13.98 FLOW PROCESS FROM NODE 873.00 TO NODE 51.00 IS CODE = 8 ---------------------------------------------------------------------------- -- )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW((((( 100.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.523 SOIL CLASSIFICATION IS "A" - SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7607 SUBAREA AREA(ACRES) - 7.80 SUBAREA RUNOFF(CFS) 20.91 TOTAL AREA(ACRES) = 15.10 TOTAL RUNOFF(CFS) = 42.37 TC(MIN) = 13.98 FLOW PROCESS FROM NODE 51.00 TO NODE 51.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < << << == CONFLUENCE VALUES USED FOR - INDEPENDENT STREAM 1 ARE: - - TIME OF CONCENTRATION(MINUTES) = 13.98 RAINFALL INTENSITY (INCH. /HOUR) 3.52 r TOTAL STREAM AREA (ACRES) = 15.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 42.37 FLOW PROCESS FROM NODE 874.00 TO NODE 51.00 IS CODE _ ---------------------------------------------------------------------------- )) )))RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < < <( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: SINGLE FAMILY (1/4 ACRE) TC = K *E(LENGTH * *3) /(ELEVATION CHANGE)1 * *.2 INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1304.00 DOWNSTREAM ELEVATION = 1291.20 ELEVATION DIFFERENCE = 13.00 TC = . 393* E ( 1002.00 * *3) / ( 13.00) 3 * *. 2 = 14.831 100.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.400 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = .7575 SUBAREA RUNOFF(CFS) = 25.24 TOTAL AREA(ACRES) = 9.80 TOTAL RUNOFF(CFS) _ :5.24 * * * * * * * * * * * * * * * * * * * * * * * * * * * ** **************** * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES((((( Zy CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 14.83 :# RAINFALL INTENSITY (INCH. /HOUR) = 3.40 ' TOTAL STREAM AREA (ACRES) = 9.80 f TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 215.24 iii CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- 1 42.37 13.98 3.523 2 25.24 14.83 3.400 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 66.15 66.13 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 66.15 TIME(MINUTES) = 13.976 TOTAL AREA(ACRES) = 24.90 FLOW PROCESS FROM NODE 51.00 TO NODE 79.00 IS CODE = 3 ---------------------------------------------------------------------------- )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )))))USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)((((( DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) 13.5 UPSTREAM NODE ELEVATION = 1291.00 DOWNSTREAM NODE ELEVATION = 1282.00 FLOWLENGTH(FEET) = 480.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) 66.15 TRAVEL TIME (MIN. ) _ .59 TC (MIN. ) 14.57 = aaaaa== xxxaaao= xxxasa== xaaasa= x= xx= aa= xaxaa== == a== aamaxaa== a= axaa= a= xaao = =s END OF RATIONAL METHOD ANALYSIS M �U ------- -- -- - - - == RATIONAL METHOD HYDROLOGY - COMPUTER PROGRAM _- ____- ______ BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL (C) Copyright 138E Advanced Engineering Software CAES] +�* Especially prepared far: 4 -. HALL & FOREMAN, INC. * * * * * * * ** *DESCRIPTION OF RESULTS * * * * * * * * * * * * * * * * * * * * ** * LINE J HYDROLOGY FROM 79 TO 95, DATA FOR FOOTHILL S.D. HYDROLOGY * 0 25 -100 YR * V.N. /J.M., JN 3810 -00, 2/14/1583. "JOHN SIMS DISK 2" ---------------------------------------------------------------------------- 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) _ .980 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.15:0 .� SLOPE OF INTENSITY DURATION CURVE = .5000 SBC HYDROLOGY MANUAL "C "- VALUES USED 1 <<<<<<<(<<<<<(<<(<(<<<<((<(<<<<<<(<<<())))>)) )) >)))) >) >) >) >)))))>))) > >) > >))) fir Advanced Engineering Software CAES3 SERIAL No. A0580A REV. 3.1 RELEASE DATE: 5/01/65 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<)>>>>>) ))>)))>)))>)))))))>>)))}>))))>> FLOW PROCESS FROM NODE 79.00 TO NODE 79.00 IS CODE = 1 ---------------------------------------------------------------------------- ))} })DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 5.00 RAINFALL INTENSITY (INCH. /HOUR) = 3.99 TOTAL STREAM AREA (ACRES) = .01 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 1.00 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 79.00 TO NODE 79.00 IS CODE = 7 )))) )USER SPECIFIED HYDROLOGY INFORMATION AT NODE(< < << M u ,...+•,).. I "- s ).- 1111 yi. .L•'1; i 3 •.L Cit."li1 -- L..L,J'9' 31 TOTAL AREA(ACRES) = 24.90 TOTAL RUNOFF(CFS) = 66.15 FLOW PROCESS FROM NODE 79.00 TO NODE 79.00 IS CODE = 1 ---------------------------------------------------------------------------- >) >) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE <( < <( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MINUTES) = 14.57 RAINFALL INTENSITY (INCH. /HOUR) = 2.34 TOTAL STREAM AREA (ACRES) = 24.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE _ 2 ARE: 66.15 FLOW PROCESS FROM NODE 994.10 TO NODE 80.00 IS CODE = 2 >) > > >RATIONAL METHOD INITIAL SUBAREA ANALYSIS << <(< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *E(LENGTH * *3) /(ELEVATION CHANGE)3 * *.2 INITIAL SUBAREA FLOW - LENGTH = 1000.00 UPSTREAM ELEVATION = 1292.00 DOWNSTREAM ELEVATION = 1283.50 ELEVATION DIFFERENCE = 8.50 TC = . 303* 1 ( 1000. 00 * *3) / t 6.50) 3 * *. 2 = 12.465 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.527 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8251 SUBAREA RUNOFF(CFS) = 17.31 TOTAL AREA(ACRES) = 8.30 TOTAL RUNOFF(CFS) = 17.31 FLOW PROCESS FROM NODE 80.00 TO NODE 79.00 IS CODE = 3 ---------------------------------------------------------------------------- )))) )COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((< )))) )USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) <(( << - DEPTH OF FLOW IN 30.0 INCH PIPE IS - 20.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.9 UPSTREAM NODE ELEVATION = 1283.50 DOWNSTREAM NODE ELEVATION = 1282.00 FLOWLENGTH(FEET) = 500.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 17.31 TRAVEL TIME (MIN. ) = 1.69 TC (MIN. ) = 14.15 FLOW PROCESS FROM NODE 994.20 TO NODE 79.00 IS CODE = 8 ) > >> )ADDITION OF SUBAREA T'0 MAINLINE PEAK FLOW < < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.372 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8235 SUBAREA AREA(ACRES) _ 4.00 SUBAREA RUNOFF(CFS) = 7.81 TOTAL AREA(ACRES) = 12.30 TOTAL RUNOFF(CFS) = 25.12 TC (MIN) = 14.15 L•r'd t•' 1"S Lj I, :.3 I IN L. if i 1'4Li L C_ i :7. VIL_ ; Q 14UL` i 7. 4:I Ki I i;i L.. ..1LC - . 32 } >}}yDESIGNATE INDEPENDENT STREAM FUR CONFLUENCE < < <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MINUTES) = 14.15 RAINFALL INTENSITY (INCH. /HOUR) = 2.37 TOTAL STREAM AREA (ACRES) = 12.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 25.12 FLOW PROCESS FROM NODE 559.80 TO NODE 75.00 IS CODE = 2 ---------------------------------------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < < << ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *E(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW- LENGTH = 500.00 UPSTREAM ELEVATION = 1288.00 DOWNSTREAM ELEVATION = 1282.00 ELEVATION DIFFERENCE = 6.00 TC = .303*[( 500. 00 * *3) / ( 6.00) 3 * *. 2 = 12.546 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.519 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8250 SUBAREA RUNOFF(CFS) = 11.43 TOTAL AREA(ACRES) = 5.50 TOTAL RUNOFF(CFS) = 11.43 FLOW PROCESS FROM NODE 79.00 TO NODE 79.00 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) = 12.55 RAINFALL INTENSITY (INCH. /HOUR) = 2.52 TOTAL STREAM AREA (ACRES) = 5.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 11.43 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 37.13 102.10 100.73 51.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 102.10 TIME(MINUTES) = 14.570 TOTAL AREA (ACRES) = 42.71 * iE* iF* ablt* iE* ! F******* if* aE* lf* 1FlE**** tE* lE1F****** �E�ltl( ** dF* iE* il* ii* aF* �FiE *�EiF * *iF xiElt* *�if* * *�F* FLOW PROCESS FROM NODE 79.00 TO NODE 87.00 IS CODE = 3 ---------------------------------------------------------------------- - - - - -- CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ------------------------------------------------------------ 1 1.00 5.00 3.991 2 66.15 14.57 2.338 3 25.12 14.15 2.372 4 11.43 12. 55 2.519 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 37.13 102.10 100.73 51.30 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 102.10 TIME(MINUTES) = 14.570 TOTAL AREA (ACRES) = 42.71 * iE* iF* ablt* iE* ! F******* if* aE* lf* 1FlE**** tE* lE1F****** �E�ltl( ** dF* iE* il* ii* aF* �FiE *�EiF * *iF xiElt* *�if* * *�F* FLOW PROCESS FROM NODE 79.00 TO NODE 87.00 IS CODE = 3 ---------------------------------------------------------------------- - - - - -- DEPTH OF FLOW IN 39.0 INCH PIPE IS 28.8 PIPEFLOW VELOCITY(FEET /SEC.) = 15.5 UPSTREAM NODE ELEVATION = 1282.00 DOWNSTREAM NODE ELEVATION = 1273.00 FLOWLENGTH(FEET) = 450.00 MANNINGS N ESTIMATED PIPE DIAMETER(INCH) = 39.00 PIPEFLOW THRU SUBAREA(CFS) = 102.10 TRAVEL TIME(MIN.) = .48 TC(MIN.) _ INCHES .013 NUMBER OF PIPES = 1 15.05 FLOW PROCESS FROM NODE 87.00 TO NODE 87.00 IS CODE = 1 ---------------------------------------------------------------------------- - - ))))) DESIGNATE - INDEPENDENT - STREAM - FOR - CONFLUENCE <((( < --------------- - - - - -- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: PR TIME OF CONCENTRATION(MINUTES) = 15.05 RAINFALL INTENSITY (INCH. /HOUR) = 2.30 L TOTAL STREAM AREA (ACRES) = 42.71 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 102.10 FLOW PROCESS FROM NODE 993.10 TO NODE - - 124 00 IS CODE -_---2------------ ------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS <<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *[(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW - LENGTH = 1000.00 UPSTREAM ELEVATION = 1284.00 DOWNSTREAM ELEVATION = 1277.00 } ELEVATION DIFFERENCE = 7.00 TC = .303*[( 1000.00 * *3) / ( 7.00) 2 * *. 2 = 12.959 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.479 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8246 SUBAREA RUNOFF(CFS) = 19.83 TOTAL AREA(ACRES) = 9.70 TOTAL RUNOFF(CFS) = 19.83 FLOW PROCESS FROM NODE 124.00 TO NODE 87.00 IS CODE = 3 )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < <(<( )))) )USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) <(( << DEPTH OF FLOW IN 27.0 INCH PIPE IS 19.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.5 UPSTREAM NODE ELEVATION = 1277.00 DOWNSTREAM NODE ELEVATION = 1273.00 FLOWLENGTH(FEET) = 700.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 19.83 TRAVEL TIME (MIN. ) = 1.80 TC (MIN. ) = 14.76 FLOW PROCESS FROM NODE 993.:0 TO NODE 87.00 IS CODE = 8 ---------------------------------------------------------------------------- ) > >) )ADDITION OF SU$gREA TO MAINLINE PEAK FLOW < < < << SUBAREA AREA(ACRES) = 9.50 SUBAREA RUNOFF(CFS) = 18.16 TOTAL AREA(ACRES) = 19.20 TOTAL RUNOFF(CFS) = 37.98 TC (MIN) = 14.76 FLOW PROCESS FROM NODE 87.00 TO NODE 87.00 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) = 14.76 RAINFALL INTENSITY (INCH. /HOUR) = 2.32 TOTAL STREAM AREA (ACRES) = 19.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 37.98 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) I! ---------------------------------------------------- 1 102.10 15.05 2.300 2 37.98- 14.76 2.322 - RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 139.72 138.12 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 139.72 TIME(MINUTES) = 15.053 !! TOTAL AREA(ACRES) = 61.91 FLOW PROCESS FROM NODE 87.00 TO NODE 999.20 IS CODE = 3 ---------------------------------------------------------------------------- >)))> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )))) )USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < < < << DEPTH OF FLOW IN 42.0 INCH PIPE IS 33.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 17.2 UPSTREAM NODE ELEVATION = 1273.00 DOWNSTREAM NODE ELEVATION = 1266.00 FLOWLENGTH(FEET) = 320.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 139.72 TRAVEL TIME (MIN. ) = .31 TC (MIN. ) = 15.36 FLOW PROCESS FROM NODE 999.20 TO NODE 999.20 IS CODE = 1 ))))> DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE << < << - CONFLUENCE VALUES USED FOR - INDEPENDENT - STREAM 1 - ARE: - - - - TIME OF CONCENTRATION(MINUTES) = 15.36 RAINFALL INTENSITY (INCH. /HOUR) = 2.28 TOTAL STREAM AREA (ACRES) = 61.91 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 139.72 Pi nw oRnr_FSS FROM NODE 999.50 TO NODE 999.20 IS CODE = 2 ----------- - - - - -- FLOW PROCESS FROM NODE 87.00 TO NODE 999.20 IS CODE = 3 ---------------------------------------------------------------------------- >)))> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA((((( )))) )USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < < < << DEPTH OF FLOW IN 42.0 INCH PIPE IS 33.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 17.2 UPSTREAM NODE ELEVATION = 1273.00 DOWNSTREAM NODE ELEVATION = 1266.00 FLOWLENGTH(FEET) = 320.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 139.72 TRAVEL TIME (MIN. ) = .31 TC (MIN. ) = 15.36 FLOW PROCESS FROM NODE 999.20 TO NODE 999.20 IS CODE = 1 ))))> DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE << < << - CONFLUENCE VALUES USED FOR - INDEPENDENT - STREAM 1 - ARE: - - - - TIME OF CONCENTRATION(MINUTES) = 15.36 RAINFALL INTENSITY (INCH. /HOUR) = 2.28 TOTAL STREAM AREA (ACRES) = 61.91 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 139.72 Pi nw oRnr_FSS FROM NODE 999.50 TO NODE 999.20 IS CODE = 2 0 r� Li e ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *E(LENGTH * *3) /(ELEVATION CHANGE)3 * *.2 INITIAL SUBAREA FLOW- LENGTH = 900.00 UPSTREAM ELEVATION = 1285.00 DOWNSTREAM ELEVATION = 1266.00 ELEVATION DIFFERENCE = 19.00 TC = . 303* E ( 900. 00 * *3) / ( 19.00) 3 * *. 2 = 9.963 25.00 YEAR RAINFALL INTENSITY (INCH /HOUR) = 2.827 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8278 SUBAREA RUNOFF(CFS) = 22.23 TOTAL AREA(ACRES) = 9.50 TOTAL RUNOFF(CFS) = 22.23 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 999.20 TO NODE 999.20 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) 9.96 RAINFALL INTENSITY (INCH. /HOUR) = 2.83 TOTAL STREAM AREA (ACRES) = 9.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 22.23 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 139.72 15.36 2.277 2 22.23 9.96 2.827 LIP RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 157.62 112.83 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 157.62 TIME(MINUTES) = 15.364 TOTAL AREA(ACRES) = 71.41 FLOW PROCESS FROM NODE 999.20 TO NODE 999.10 IS CODE = 3 u F" )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA <(< << )))))USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW)( < < << DEPTH OF FLOW IN 48.0 INCH PIPE IS 34.7 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 16.2 UPSTREAM NODE ELEVATION = 1266.00 DOWNSTREAM NODE ELEVATION = 1261.00 FLOWLENGTH(FEET) = 300.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 157.62 TRAVEL TIME (MIN. ) = .31 TC (MIN. ) = 15.67 FLOW PROCESS FROM NODE 999.10 TO NODE 999.10 IS CODE = 1 ---------------------------------------------------------------------- - - - - -- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < < << I l i•IG Ui' k_%.J 4i...Gi4 i ill-{ i 1 UN k Vi I INU f ::..J ) = I .3. G / RAINFALL INTENSITY (INCH. /HOUR) = 2.25 TOTAL STREAM AREA (ACRES) = 71.41 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 157.62 36 FLOW PROCESS FROM NODE 999.00 TO NODE 999.10 IS CODE = 2 ---------------------------------------------------------------------------- ))) ))RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < <<( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *E(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW - LENGTH = 440.00 UPSTREAM ELEVATION = 1268.00 DOWNSTREAM ELEVATION = 1261.00 ELEVATION DIFFERENCE = 7.00 TC = . 303* E ( 440.00 * *3) / ( 7.00) 1 * *. 2 = 7.918 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.171 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8302 SUBAREA RUNOFF(CFS) = 5.79 TOTAL AREA(ACRES) = 2.20 TOTAL RUNOFF(CFS) = 5.79 FLOW PROCESS FROM NODE 999.10 TO NODE 999.10 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE (< < << )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES( <((< =-= sa- xaaxaaxaxxxx= sssssasaaa= xaxxxxxxs= xs== sasaaaaax= xx==== a= sa= aaxaaa = =o =o CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 7.92 RAINFALL INTENSITY (INCH. /HOUR) 3.17 TOTAL STREAM AREA (ACRES) = 2.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 5.79 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) tMIN.> (INCH /HOUR) ---------------------------------------------------- i 157.62 15.67 ?.254 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 161.74 85.43 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 161.74 TIME (MINUTES) = 15.672 TOTAL AREA(ACRES) = 73.61 FLOW PROCESS FROM NODE 999.10 TO NODE 95.00 IS CODE = 3 ---------------------------------------------------------------------------- )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < < << )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)( < < << DEPTH OF FLOW IN 51.0 INCH PIPE IS 41.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.2 UPSTREAM NODE ELEVATION = 1261.00 DOWNSTREAM NODE ELEVATION = 1258.00 ------------------------ a 2 5. 79 7.92 3. 171 FLOW PROCESS FROM NODE 999.10 TO NODE 95.00 IS CODE = 3 ---------------------------------------------------------------------------- )))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < < << )))))USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)( < < << DEPTH OF FLOW IN 51.0 INCH PIPE IS 41.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.2 UPSTREAM NODE ELEVATION = 1261.00 DOWNSTREAM NODE ELEVATION = 1258.00 d/ TRAVEL TIME(MIN.) = .38 TC(MIN.) = 16.05 ****************************w*********************************************** FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 1 )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.05 RAINFALL INTENSITY (INCH./HOUR) = 2.23 TOTAL STREAM AREA (ACRES) = 73.61 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 161.74 **************************************************************************** FLOW PROCESS FROM NODE 995.00 TO NODE 95.00 IS CODE = 2 )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = N*[(LENGTH**3)y(ELEVATION CHAMGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 300.069 UPSTREAM ELEVATION = 1263.00 DOWNSTREAM ELEVATION = 1258.00 ELEVATION DIFFERENCE = 5.00 TC = .303*[( 300.00**3)/( 5.6909)]**.2 = 6.731 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.440 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8317 SUBAREA RUNOFF(CFS) = 5.15 TOTAL AREA(ACRES) = 1.80 TOTAL RUNOFF(CFS) = 5.15 **************************************************************************** FLOW PROCESS FROM NODE 987.10 TO NODE 95.00 IS CODE = 8 )}>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.440 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8317 SUBAREA AREA(ACRES) = 1.20 SUBAREA RUNOFF(CFS) = 3.43 TOTAL AREA(ACRES) = 3.00 TOTAL RUNOFF(CFS) = 8.58 TC(MIN) = 6.73 **************************************************************************** FLOW PROCESS FROM NODE 987.20 TO NODE 95.00 IS CODE = 8 >})>)ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<(<< 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.440 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8317 SUBAREA AREA(ACRES) = 1.16 SUBAREA RUNOFF(CFS) = 3.32 TOTAL AREA(ACRES) = 4.16 TOTAL RUNOFF(CFS) = 11.90 TC(MIN) = 6.73 **************************************************************************** FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = 1 H , C r )'ll )a.J l.v f..):'r) "1. .^ I) " "}1 \.1!>_r J t�vl'YI 1— I�`1.�4Lr L1.! J r �.Y"111 l/ {�L)✓ \ t \ \ 1 � CONFLUENCE VALUES USED FOR INDEPENDENT STREAM S ARE: TIME OF CONCENTRATION(MINUTES) = 6.73 RAINFALL INTENSITY (INCH. /HOUR) = 3.44 TOTAL STREAM AREA (ACRES) = 4.16 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 11.90 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 161.74 16.05 2. 22 7 2 11.90 6.73 3.440 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 169.45 79.73 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 169.45 TIME(MINUTES) = 16.050 TOTAL AREA(ACRES) = 77.77 FLOW PROCESS FROM NODE 95.00 TO NODE 95.00 IS CODE = i ---------------------------------------------------------------------------- ))) > >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( )))))AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES( <( << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 16.05 RAINFALL INTENSITY (INCH. /HOUR) = 8.,93 TOTAL STREAM AREA (ACRES) = 77.77 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 169.45 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 169.45 16.05 2.227 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 1 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 169.45 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 169.45 TIME(MINUTES) - 16.050 - - TOTAL AREA( ACRES) - -_ - -- 77_77 -------------- - - - - -- END OF RATIONAL METHOD ANALYSIS �vd HT-1 Hl� __ TIONAL __ 39 A METHOD HYDROLOGY COMPUTER PROGRAM -====--___-- - - - - -- BASED ON SAN BERNARDINO COUNTY (SBC) A 1983 HYDROLOGY MANUAL (C) Copyright 198E Advanced Engineering Software CAES3 Especially prepared far: HALL & FOREMAN, INC. * * * * * * * ** *DESCRIPTION OF RESULTS * * * * * * * * * * * * * * * * * * * * * ** * LINE K HYDROLOGY, DATA FOR FOOTHILL S.D. HYDROLOGY * 0 25 YR * V. N. /J. M. , JN 3810 -00, 2/14/1989, "JOHN SIMS DISK 2" - ---------------------------------------------------------------------------- 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) _ .980 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR INTENSITY(INCH /HOUR) = 1.15200 SLOPE OF INTENSITY DURATION CURVE = .5000 SBC HYDROLOGY MANUAL "C "- VALUES USED Advanced Engineering Software CAES3 SERIAL No. A0580A 6w REV. 3.1 RELEASE DATE: 5/01/85 FLOW PROCESS FROM NODE 992.00 TO NODE 84.00 IS CODE = 2 ---------------------------------------------------------------------------- )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS < << <( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *C(LENGTH * *3) /(ELEVATION CHANGE)3 * *.2 INITIAL SUBAREA FLOW - LENGTH = 980.00 UPSTREAM ELEVATION = 1273.00 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 13.00 TC = . 303* C ( 980.00 * *3) / ( 13.00) 3 * *. 2 = 11.312 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 3.135 SOIL CLASSIFICATION IS "A" rnMMFRrT0[ I)FVELOPMENT RUNOFF COEFFICIENT = . 8239 4( FLOW PROCESS FROM NODE 84.00 TO NODE 82.00 IS CODE = 3 ---------------------------------------------------------------------------- ))))COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < { < << )))))USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < <((< DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.2_ INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.4 UPSTREAM NODE ELEVATION = 1260.00 DOWNSTREAM NODE ELEVATION = 1254.00 FLOWLENGTH(FEET) = 1000.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = i PIPEFLOW THRU SUBAREA(CFS) = 17.17 TRAVEL TIME (MIN. ) = 2.59 TC (MIN. ) = 13.91 FLOW PROCESS FROM NODE 991.20 TO NODE 82.00 IS CODE = 8 )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW < <{ << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.770 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8273 SUBAREA AREA(ACRES) = 6.30 SUBAREA RUNOFF(CFS) = 14.44 TOTAL AREA(ACRES) = 12.50 TOTAL RUNOFF(CFS) = 31.61 TC (MIN) = 13.91 �!! �• ���•• ��•• �• �• ��t•* �•• �• tt•• ���t•• �• tt� •��•���t••�t••pit••�•��x•it•• jai•• tt•• �• �• ��t•• ��•• ��• �• ��e��• �• it• �•* ��• �•- �• it• ��t• �•- �� *���r��r�••�- ��- �����t•�•��� FLOW PROCESS FROM NODE 82.00 TO NODE 82.00 IS CODE = 1 ---------------------------------------------------------------------- - - - - -- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.91 RAINFALL INTENSITY (INCH. /HOUR) = 2.77 TOTAL STREAM AREA (ACRES) = 12.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 31.61 FLOW PROCESS FROM NODE 991.10 TO NODE 999.10 IS CODE = 2 )))))RATIONAL METHOD INITIAL SUBAREA ANALYSIS < < < << ASSUMED INITIAL - SUBAREA _ UNIFORM ______ __ __ __________ ______ ___ _______ DEVELOPMENT IS: COMMERCIAL TC = K *[(LENGTH * *3) /(ELEVATION CHANGE)3 * *.2 INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1270.00 DOWNSTREAM ELEVATION = 1258.00 ELEVATION DIFFERENCE = 12.00 TC = . 303* C ( 1000. 00 * *3) / ( 12.00) ] * *. 2 = 11.635 5.00 YEAR RAINFALL INTENSITY ( INCH /HOUR) = 3.082 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT _ .8296 SUBAREA RUNOFF(CFS) = 19.69 TOTAL AREA(ACRES) = 7.70 TOTAL RUNOFF(CFS) = 19.69 ! i r i/ L,WI'irti i C_ r-'.L r'CCI "'L-UVO i I5"vc_L i i Ili c + tlp'o aUL h i l l 41 - _ ) >) >) USING - COMPUTER-ESTIMATED - PIPESIZE - ( NON - PRESSURE_ FLOW) << << < ---- _ -_____ FLOW PROCESS FROM NODE 82.00 TO NODE 82.00 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) = 12.25 RAINFALL INTENSITY (INCH. /HOUR) = 2.99 TOTAL STREAM AREA (ACRES) = 7.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 19.69 CONFLUENCE INFORMATION: DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES TIME PIPEFLOW VELOCITY(FEET /SEC.) = 8.7 (CFS) (MIN.) UPSTREAM NODE ELEVATION = 1258.00 --------------------------------------------------------------- 1 31.61 13.91 DOWNSTREAM NODE ELEVATION = 1254.00 19.69 12.25 FLOWLENGTH(FEET) = 320.00 MANNINGS N = .013 ESTIMATED RIPE DIAMETER(INCH) _ 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 19.69 TRAVEL TIME (MIN. ) = .61 TC (MIN. ) = 12.25 FLOW PROCESS FROM NODE 82.00 TO NODE 82.00 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) = 12.25 RAINFALL INTENSITY (INCH. /HOUR) = 2.99 TOTAL STREAM AREA (ACRES) = 7.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 19.69 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) --------------------------------------------------------------- 1 31.61 13.91 2.770 2 19.69 12.25 2.989 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 49.85 47.53 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 49.85 TIME(MINUTES) = 13.905 ., TOTAL AREA(ACRES) = 20.60 FLOW PROCESS FROM NODE 82.10 TO NODE 81.00 IS CODE = 3 ---------------------------------------------------------------------------- > >) >)COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< > >)) )USING COMPUTER- ESTIMATED PIPESIZE (NON - PRESSURE FLOW) <<<<< DEPTH OF FLOW IN 36.0 INCH PIPE IS 29.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 8.2 UPSTREAM NODE ELEVATION = 1254.00 DOWNSTREAM NODE ELEVATION = 1250.00 FLOWLENGTH (FEET) = 660.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 49.85 TRAVEL TIME (MIN. ) = 1.35 TC (MIN. ) = 15.25 FLOW PROCESS FROM NODE 990.00 TO NODE 81.00 IS CODE = 8 )))))ADDITION OF SUBAREA TO MAINLINE PEAK FLOW< < < << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 2.620 SOIL CLASSIFICATION IS "A" i U t 1-i k- t- is�c 1 U i HL_ "UNUr r l LA Za I - i i. +coo dY s TC (MIN) = 15.25 FLOW PROCESS FROM NODE 81.00 TO NODE 91.00 IS CODE = 3 ---------------------------------------------------------------------------- > > >> )COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA < < < <( >) > > >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) < < < << DEPTH OF FLOW IN 24.0 INCH PIPE IS 17.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 28.5 UPSTREAM NODE ELEVATION = 1250.00 DOWNSTREAM NODE ELEVATION = 1242.00 FLOWLENGTH(FEET) = 62.00 MANNINGS N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 71.06 TRAVEL TIME(MIN.) = . TC(MIN.) = 15.29 FLOW PROCESS FROM NODE 974.00 TO NODE 91.00 IS CODE = 8 ---------------------------------------------------------------------- - - - - -- >> >) )ADDITION OF SUBAREA TO MAINLINE PEAK FLOW< <( << 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.616 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8260 SUBAREA AREA(ACRES) _ .70 SUBAREA RUNOFF(CFS) = 1.51 TOTAL AREA(ACRES) = 31.10 TOTAL RUNOFF(CFS) = 72.58 TC (MIN) = 15.29 7 * IE *** iE * * ***** i@ � ****** tFiF 1EdE *********** �� ****** it 9Fl fiF9ElElii�9eiE�e- i( �aFi tiFieIEIEaFlEiFkaEIEdE9E� FLOW PROCESS FROM NODE 91.00 TO NODE 91.00 IS CODE = 1 ---------------------------------------------------------------------------- > >)) )DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE << <(< = a= aaaaaxa= x= aaxa:= xxxxxa= exxaaax= xa= a= x= xxxxxxx===== xxxx==== ___c= __= _ = =____ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 15.29 RAINFALL INTENSITY (INCH. /HOUR) = 2.62 TOTAL STREAM AREA (ACRES) = 31.10 poi TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 72.58 ''` I EiE4FiF* iFiFaEaEltiFl tif�iEdE�EiEiFiEiE9EdE9F��dE�F# F9E�i69F9EdF�E�F�EiF�E�EiE�FdEiEi6iEaEi6iFI F�FiFi6dFiEdE�F�Fi6iF1 F#�F9FdEiEiEdEIF�iEiE FLOW PROCESS FROM NODE 992.10 TO NODE 84.00 IS CODE = 2 ---------------------------------------------------------------------------- >) > >)RATIONAL METHOD INITIAL SUBAREA ANALYSIS<< <<< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K *t(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW- LENGTH = 930.00 UPSTREAM ELEVATION = 1265.00 DOWNSTREAM ELEVATION = 1260.00 ELEVATION DIFFERENCE = 5.00 TC = . 303* 1 ( 930.00 * *3) / ( 5. 00) I * *. 2 = 13.270 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.849 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8279 SUBAREA RUNOFF(CFS) = 1.42 - TOTAL AREA(ACRES) = .60 TOTAL RUNOFF(CFS) = 1.42 FI 0 .0 d f "LUWr'i.l1L.G:7j t i''iLJUG Clot. kt+Ct i tJ f'tUUC rS�.:. FLtiLi 1'�7 i.,l3U�. - � ¢3' )))))COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA << <<< UPSTREAM ELEVATION = 1260.00 DOWNSTREAM ELEVATION = 1254.00 STREET LENGTH(FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 18.00 STREET CROSSFALL(DECIMAL) = .0279 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = i * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 1.33 STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 7.95 AVERAGE FLOW VELOCITY(FEET /SEC.) = 1.95 PRODUCT OF DEPTH &VELOCITY = .66 STREETFLOW TRAVELTIME(MIN) = 8.54 TC(MIN) = 21.81 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.115 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8203 SUBAREA AREA(ACRES) _ .60 SUBAREA RUNOFF(CFS) = 1.04 SUMMED AREA(ACRES) = 1.20 TOTAL RUNOFF(CFS) = 2.46 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 8.98 FLOW VELOCITY(FEET /SEC.) = 1.33 DEPTH *VELOCITY = .73 FLOW PROCESS FROM NODE 82.00 TO NODE 51.00 IS CODE = 6 ---------------------------------------------------------------------------- )))))COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA( << << UPSTREAM ELEVATION = 1254.00 DOWNSTREAM ELEVATION = 1242.000 STREET LENGTH(FEET) = 1270.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 18.00 STREET CROSSFALL(DECIMAL) = .0275 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.54 STREET FLOWDEPTH(FEET) = .41 HALFSTREET FLOODWIDTH(FEET) = 10.52 AVERAGE FLOW VELOCITY(FEET /SEC.) = 2.74 PRODUCT OF DEPTH &VELOCITY = 1.12 STREETFLOW TRAVELTIME(MIN) = 7.71 TC(MIN) _ 29.52 25.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.763 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8143 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) = 4.16 SUMMED AREA(ACRES) = 4.10 TOTAL RUNOFF(CFS) = 6.62 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = .45 HALFSTREET FLOODWIDTH(FEET) = 12.07 FLOW VELOCITY(FEET /SEC.) = 3.09 DEPTH *VELOCITY = 1.39 FLOW PROCESS FROM MODE 91.00 TO NODE 91.00 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) = 29.52 RAINFALL INTENSITY (INCH. /HOUR) = 1.76 TOTAL STREAM AREA (ACRES) = 4.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 6.62 CONFLUENCE INFORMATION: 1 72.58 15.29 2.616 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. v� VARIOUS CONFLUEWCED RUNOFF VALUES ARE AS FOLLOWS: 76.690 55.52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 76.00 TIME(MINUTES) = 15.289 TOTAL AREA(ACRES) 35.20 ============================================================================ �� EN B OF RATIONAL METHOD ANALYSIS �rl iw - Foothill Storm Drain Hydrology for Areas 987, 986, 985 and 984. 3 45 F! - RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY :BBC) 1983 HYDROLOGY MANUAL ((<<<<(<<((<(<<<(<<<<(<<((<<<<<<<<<(<0)}}}}}}>)}}>}>>}>}}}>}}>>}>})>>}}}}>> (C) Copyright 1982 Advanced Engineering Software [AES] , . Especially prepared for: HALL & FOREMAN, INC. ((<(<<<<<(<(<<(<<<((<<<<<<<<<<<(<<<<<0}}}}>>>>>}}>>>}>>}}>>>}}>>}}>}}}>>>)> **********DESCRIPTION OF RFSULTS******************************************** * FOOTHILL S.D. HYDROLOGY FOR AREA 987, 986, 985,8 984. * * Q 25 YR * J.M., JN 3810-000, 1/24/1989 * **************************************************************************** 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) = .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 [AES] SERIAL No. A0579A REV. 3.1 RELEASE DATE: 5/01/85 <<<<<<(<<<<<<<(<<<<<<(<<<(<(<<<<(<<<<(>)>}>}>}}}>}>}}>}>>}>>>>}>>>}>>}>)>>}) **************************************************************************** FLOW PROCESS FROM NODE 987.00 TO NODE 94.00 IS CODE = 2 >}}}}RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<(<< | ------'- ' - ----- -----======------ --- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 860.00 . UPSTREAM ELEVATION = 1265.00 DOWNSTREAM ELEVATION = 1256.00 ELEVATION DIFFERENCE = 9.00 TC = .303*[( 860.00**3)/( 9.00)3**.2 = 11.257 / 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.144 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ^ 83N0 .�� �ry **************************************************************************** FLOW PROCESS FROM NODE 986.00 TO NODE 93.00 IS CODE = 2 }}}}}RATIONAL METHOD INITIAL SUBAREA ANALYSIS((((( ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL IC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1263.00 bOWNSTREAM ELEVATION = 1250.00 ELEVATION DIFFERENCE = 13.00 TO = .303*[( 900.00**3)/( 13.00)3**.2 = 10.748 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.233 SOIL CLASSIFICATION IS "A" ' COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8305 SUBAREA RUNOFF(CFS) = 23.89 TOTAL AREA(ACRES) = 8.90 TOTAL RUNOFF(CFS) = 23.89 **************************************************************************** FLOW PROCESS FROM NODE 985.00 TO NODE 92.00 IS CODE = 2 ))));RATIONAL METHOD INITIAL SUBAREA ANALYSIS<(<(< ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TO = 1-(*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 860.00 UPSTREAM ELEVATION = 1257.00 DOWNSTREAM ELEVATION = 1245.00 ELEVATION DIFFERENCE = 12.00 TO = . 303*C ( 860.00**3) /( 12.00)]**.2 = 10.628 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.254 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8307 SUBAREA RUNOFF(CFS) = 21.36 TOTAL AREA(ACRES) = 7.90 TOTAL RUNOFF(CFS) = 21.36 **************************************************************************** FLOW PROCESS FROM NODE 984.00 TO NODE 91.00 IS CODE = 2 }}}}>RATIONAL METHOD INITIAL SUBAREA ANALYSIS(<<<< =_______=========== ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: COMMERCIAL TO = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 880.00 UPSTREAM ELEVATION = 1254.00 DOWNSTREAM ELEVATION = 1242.00 ELEVATION DIFFERENCE = 12.00 TO = .303*C( 880.00**3)/( 12.00)]**.2 = 10.776 25.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.228 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .83Q5 SUBAREA RUNOFF(CFS) = 16.08 TOTAL AREA(ACRES) = 6.00 TOTAL RUNOFF(CFS) = END OF RATIONAL METHOD ANALYSIS i LO - Foothill Storm Drain Hydrology for Areas 987.1, 998.3, 998.2, 985.1, 998.5, 998.4, 981.1, 998.6. 0 R 0 SAN BERNARDINO COUNTY RATIONAL PROGRAM Copyright (c) CivilDesign /CivilCadd, 1988 Rational Hydrology Study Date: 1 -31 -89 ---------------------------------------------------------------------------- FOOTHILL S.D. HYDROLOGY FOR AREAS 987.1, 998.3, 998.2, 985.1,998.5,998.4 981.1, & 998.6 Q 25 YR JN 3810 -000, 1/31/1989, FILE TEMP1 ---------------------------------------------------------------------------- *SPECIFIED HYDROLOGY INFORMATION* ---------------------------------------------------------------------------- 10.0 year storm 1 hour rainfall (Inches) = .980 100.0 year storm 1 hour rainfall (Inches) = 1.470 Computed rainfall intensity: Storm year = 25.00 1 hour rainfall (Inches) = 1.1750 Slope used for intensity curve = .6000 Soil Antecedent Moisture Condition(AMC) = 2 ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 987.10 to Point /Station 94.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Im Decimal Fraction Soil Group B .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) = .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 600.00(Ft.) Upstream elevation = 1258.00(Ft.) Downstream elevation = 1256.00(Ft.) Elevation difference = 2.00(Ft.) Slope = .00333 S( %) = .33 Tc = K( .304) *[(Length"3) /(Elevation Change)]"0.2 Initial area time of concentration = 12.290 min. 25.00 Year computed rainfall intensity = 3.042 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .871 Subarea runoff 2.385(CFS) Total initial stream area = .90(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 998.30 to Point /Station 93.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) = .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 700.00(Ft.) Upstream elevation = 1256.00(Ft.) Downstream elevation = 1250.00(Ft.) 4: OR Elevation difference = 6.00(Ft.) Slope = .00857 S($) _ .86 Tc = K( .304)* (Length "3) /(Elevation Change)] Initial area time of concentration = 10.822 min. 25.00 Year computed rainfall intensity = 3.284 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .873 Subarea runoff = 3.154(CFS) Total initial stream area = 1.10(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 998.20 to Point /Station 93.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 1300.00(Ft.) Upstream elevation = 1258.00(Ft.) am Downstream elevation = 1250.00(Ft.) Elevation difference = 8.00(Ft.) Slope = .00615 S($) _ .62 Tc = K( .304) *[(Length "3) /(Elevation Change)]"0.2 Initial area time of concentration = 14.812 min. 25.00 Year computed rainfall intensity = 2.720 In /Hr Effective Runoff Coefficient used for total area OR (Q =CIA) is C = .868 Subarea runoff 4.720(CFS) Total initial stream area = 2.00(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ OR Process from Point /Station 985.10 to Point /Station 92.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 650.00(Ft.) Upstream elevation = 1250.00(Ft.) Downstream elevation = 1245.00(Ft.) Elevation difference = 5.00(Ft.) Slope = .00769 S( %) _ .77 Tc = K( .304)* (Length "3) /(Elevation Change)]"0.2 Initial area time of concentration = 10.736 min. 25.00 Year computed rainfall intensity = 3.299 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .873 Subarea runoff = 2.881(CFS) Total initial stream area = 1.00(Ac.) Pervious area fraction = Initial area FM value = 0 i`il .100 .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 998.50 to Point /Station 91.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 650.00(Ft.) Upstream elevation = 1245.00(Ft.) Downstream elevation = 1242.00(Ft.) Elevation difference = 3.00(Ft.) Slope = .00462 S( %) _ .46 Tc = K( .304) *[(Length"3) /(Elevation Change)]"0.2 Initial area time of concentration = 11.890 min. 25.00 Year computed rainfall intensity = 3.103 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .872 Subarea runoff = 2.975(CFS) Total initial stream area = 1.10(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 998.40 to Point /Station 91.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 1300.00(Ft.) Upstream elevation = 1250.00(Ft.) Downstream elevation = 1242.00(Ft.) Elevation difference = 8.00(Ft.) Slope = .00615 S( %) _ .62 Tc = K( .304)* (Length "3) /(Elevation Change)] "0.2 Initial area time of concentration = 14.812 min. 25.00 Year computed rainfall intensity = 2.720 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .868 Subarea runoff = 4.956(CFS) Total initial stream area = 2.10(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 981.10 to Point /Station 90.00 * ** INITIAL AREA EVALUATION * ** R Decimal Fraction Soil Group A = 1.000 r� n 0, Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL Initial subarea flow length = 1300.00(Ft.) Upstream elevation = 1242.00(Ft.) Downstream elevation = 1230.00(Ft.) Elevation difference = 12.00(Ft.) Slope = .00923 S( %) _ .92 Tc = K( .304) *[(Length"3) /(Elevation Change)] Initial area time of concentration = 13.659 min. 25.00 Year computed rainfall intensity = 2.856 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C = .869 Subarea runoff = 5.584(CFS) Total initial stream area = 2.25(Ac.) Pervious area fraction = .100" Initial area FM value = .098(In /Hr) ++++++++++++++++++++++++++++++++++++++++++++ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + ++ Process from Point /Station 998.60 to Point /Station 90.00 * ** INITIAL AREA EVALUATION * ** Decimal Fraction Soil Group A = 1.000 Decimal Fraction Soil Group B = .000 Decimal Fraction Soil Group C = .000 Decimal Fraction Soil Group D = .000 COMMERCIAL subarea type SCS Curve Number for Soil(AMC 2) = 32.0 Pervious ratio(AP) _ .100 Max loss rate(FM)= .098(In /Hr) Subarea is COMMERCIAL " Initial subarea flow length = 1300.00(Ft.) Upstream elevation 1242.00(Ft.) Downstream elevation = 1230.00(Ft.) Elevation difference = 12.00(Ft.) Slope = .00923 S( %) _ .92 Tc = K( .304)* (Length "3) /(Elevation Change)]"0.2 Initial area time of concentration = 13.659 min. 25.00 Year computed rainfall intensity = 2.856 In /Hr Effective Runoff Coefficient used for total area (Q =CIA) is C .869 Subarea runoff = 5.584(CFS) Total initial stream area = 2.25(Ac.) Pervious area fraction = .100 Initial area FM value = .098(In /Hr) End of computations, total study area = 12.70(Ac.) The following ficjures may be used for a unit hydrograph study of the same area. Note: These figures do not consider reduced effective area effects caused by confluences in the rational equation. AREA AVERAGED PERVIOUS AREA FRACTION(AP) _ .100 AREA AVERAGED SCS CURVE NUMBER = 32.0 ADJUSTED SCS CURVE NUMBER FOR AMC 2 = 32.0 E 52 0 a - Foothill Storm Drain Hydrology, confluence analysis for Nodes 91, 92, 93, & 94. 0 53 54 RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1583 HYDROLOGY MANUAL (CC<<<<<<<(<<<<((<<<<(C(<<<<<<((((<<<<>>>>))> >))3))))))))))))))} } } }3) }3 > > > >> (C) Copyright 198E Advanced Engineering Software CAES3 Especially prepared for: HALL & FOREMAN, INC. * * * * * * * ** *DESCRIPTION OF RESULTS * * * * * * * * * * * * * * * * * * * * ** ** * * * ** * FOOTHILL S.D. HYDROLOGY, CONF ANAL. FOR NODES 91, 92. 93, & 94 E A * 0 25 YR, FOR TEMP INLET DESIGN * J.M., JN 3810 -000, 1/27/1989 "DSK JOE #2 FILE "H" pm --------------------------- _ ------------------------------ 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) _ .980 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.470 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 25.00 1 -HOUR I NTENS I TY (I NCH /HOUR ) = 1.1520 SLOPE OF INTENSITY DURATION CURVE _ .6000 SBC HYDROLOGY MANUAL "C "- VALUES USED Advanced Engineering Software CAES3 SERIAL No. A0 580A REV. 3.1 RELEASE DATE: 5/01/85 (<<{<<(<<({(< < < <(( << <(( < <( <( { < < < { < <( {< > > } >3} 33333 )333333 > > > > } }) } }} } }3 } }} }} }} FLOW PROCESS FROM NODE 984.00 TO NODE 91.00 IS CODE = 7 ---------------------------------------------------------------------------- )))`)USER SPECIFIED HYDROLOGY INFORMATION AT NODE((<(C USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.78 RAIN INTENSITY(INCH /HOUR) = 3.23 TOTAL AREA(ACRES) = 6.00 ' TOTAL RUNOFF(CFS) = 16.08 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 984.00 TO NODE 91.00 IS CODE = 1 333)3DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE(C(<< TOTAL STREAM AREA (ACRES) = 6.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 16.08 FLOW PROCESS FROM NODE 998.50 TO NODE 91.00 IS CODE = 7 ---------------------------------------------------------------------------- )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE( < < << USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 11.89 RAIN INTENSITY(INCH /HOUR) = 3.04 TOTAL AREA(ACRES) = 1.10 TOTAL RUNOFF(CFS) = 2.97 FLOW PROCESS FROM NODE 998.50 TO NODE 91.00 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) = 11.89 RAINFALL INTENSITY (INCH. /HOUR) = 3.04 TOTAL STREAM AREA (ACRES) = 1.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.97 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- 1 16.08 10.78 3.228 2 2.97 11.89 3.043 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 18.78 18.13 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 18.78 TIME (MINUTES) = 10.776 TOTAL AREA(ACRES) = 7.10 FLOW PROCESS FROM NODE 985.00 TO NODE 92.00 IS CODE = 7 )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((( << USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.63 RAIN INTENSITY(INCH /HOUR) = 3.25 TOTAL AREA(ACRES) = 7.90 TOTAL RUNOFF(CFS) = 21.36 fi FLOW PROCESS FROM NODE 985.00 TO NODE 92.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE((((( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 10.63 RAINFALL INTENSITY (INCH. /HOUR) = 3.25 TOTAL STREAM AREA (ACRES) = 7.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 21.36 _�.., , .. I_.._,_,... ,._ , ,.-i > I, ". - .. uv. .4 v. i v i, . c- >G. V. IL 1 J LWUi: -'- / :�pp )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((((( ____ __ ______ __ ____ USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.74 RAIN INTENSITY(INCH /HOUR) = 3.23 TOTAL AREA(ACRES) = 1.00 TOTAL RUNOFF(CFS) = 2.88 FLOW PROCESS FROM NODE 985.10 TO NODE 92.00 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) = 10.74 RAINFALL INTENSITY (INCH. /HOUR) = 3.23 TOTAL STREAM AREA (ACRES) = 1.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.88 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------- 1 21.36 10.63 3.254 2 2.88 10.74 3.235 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 24.21 24.11 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 24.21 TIME(MINUTES) = 10.628 TOTAL AREA(ACRES) = 8.90 FLOW PROCESS FROM NODE 986.00 TO NODE 93.00 IS CODE = 7 )> )))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((((( USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.75 RAIN INTENSITY(INCH /HOUR) = 3.23 TOTAL AREA(ACRES) = 8.90 TOTAL RUNOFF(CFS) = 23.89 FLOW PROCESS FROM NODE 986.00 TO NODE 93.00 IS CODE = 1 ---------------------------------------------------------------------------- )) )))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < <(( xxx=x=axxx=xa=axxxaaaxxxxxxx=aaxxao=aaxxxxx=aaxxxx==aa==xxxxoxxxxcco=ax===x= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 10.75 RAINFALL INTENSITY (INCH. /HOUR) = 3.23 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 23.89 FLOW PROCESS FROM NODE 998.30 TO NODE 93.00 IS CODE = 7 ---------------------------------------------------------------------------- >) >> )USER SPECIFIED HYDROLOGY INFORMATION AT NODE( < < <( - - - - -- ------------------ FLOW PROCESS FROM NODE 986.00 TO NODE 93.00 IS CODE = 7 )> )))USER SPECIFIED HYDROLOGY INFORMATION AT NODE((((( USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 10.75 RAIN INTENSITY(INCH /HOUR) = 3.23 TOTAL AREA(ACRES) = 8.90 TOTAL RUNOFF(CFS) = 23.89 FLOW PROCESS FROM NODE 986.00 TO NODE 93.00 IS CODE = 1 ---------------------------------------------------------------------------- )) )))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < <(( xxx=x=axxx=xa=axxxaaaxxxxxxx=aaxxao=aaxxxxx=aaxxxx==aa==xxxxoxxxxcco=ax===x= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 10.75 RAINFALL INTENSITY (INCH. /HOUR) = 3.23 TOTAL STREAM AREA (ACRES) = 8.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 23.89 FLOW PROCESS FROM NODE 998.30 TO NODE 93.00 IS CODE = 7 ---------------------------------------------------------------------------- >) >> )USER SPECIFIED HYDROLOGY INFORMATION AT NODE( < < <( H'' 10 0 l u FLOW PROCESS FROM NODE 958.30 TO NODE 93.00 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) = 10.82 RAINFALL INTENSITY (INCH. /HOUR) = 3.22 TOTAL STREAM AREA (ACRES) = 1.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 3.15 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 23.89 10.75 3.233 2 3.15 10.82 3.219 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 27.02 26.95 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 27.02 TIME(MINUTES) = 10.748 TOTAL AREA(ACRES) = 10.00 FLOW PROCESS FROM NODE 987.00 TO NODE 54.00 IS CODE = 7 )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE < < < << USER - SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 11.26 RAIN INTENSITY(INCH /HOUR) = 3.14 TOTAL AREA(ACRES) = 8.00 TOTAL RUNOFF(CFS) = 20.88 } FLOW PROCESS FROM NODE 587.00 TO NODE 94.00 IS CODE = 1 ---------------------------------------------------------------------------- )))))DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE < < < << CONFLUENCE VALUES USED FOR INDEPENDENT STREAM i ARE: TIME OF CONCENTRATION(MINUTES) = 11.26 RAINFALL INTENSITY (INCH. /HOUR) = 3.14 TOTAL STREAM AREA (ACRES) = 8.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 20.88 FLOW PROCESS FROM NODE 987_ - - _ - -_ - - ---- a 10 TONODE94 00ISCODE7 -- - _---- - - - - -- )))))USER SPECIFIED HYDROLOGY INFORMATION AT NODE <<< << ---------------------------------------------------------------------------- USER- SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 12.29 RAIN INTENSITY(INCH /HOUR) = 2.99 TOTAL AREA(ACRES) _ .90 TOTAL RUNOFF(CFS) = 2.38 _'+.')r._.. .i..L ....:'L_r _.ar ..J.S_I"1 r'1 l�. vV.•r :_t_•L.. .I 1... 1 Y \ \ \ 5t ) >)))ANDCOMPUTE VARIOUS CONFLUENCED STREAM VALUES < <<(( CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 12.29 RAINFALL INTENSITY (INCH./HOUR) = 2.98 TOTAL STREAM AREA (ACRES) = .90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2.38 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) 1 20.88 11.26 3.144 2 2.38 12.29 2.983 ® RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 23.06 22.19 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 23.06 TIME(MINUTES) = 11.257 TOTAL AREA(ACRES) = 8.90 END OF RATIONAL METHOD ANALYSIS h- F; J