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Kaiser Permanente Hydrology Study
HYDROLOGY STUDY FOR RAISER PERMANENTS MEDICAL CENTER ME SURROUNDING MASTER PLAN DRAINAGE AREAS FONTANA, CALIFORNIA Prepared For: Kaiser Permanente Medical Center Submitted To: City of Fontana Public Works Department Prepared By: WAGNER- STANFORD 201 E. Yorba Linda Blvd. Placentia, California 92670 (714) 993 -4500 FEBRUARY 25, 1985 Page 1 of 26 P. 2 of 26 RAISER PERMANENTE MEDICAL CENTER FONTANA, CALIFORNIA JOB NO. 345 -01 -85 INTRODUCTION.... ............................... 3 SUMMARY......... ............................... 4 HYDROLOGY CLACULATIONS FOR THE EXISTING CONDITION 6 HYDROLOGY CALCULATIONS FOR THE PROPOSED CONDITION 14 HYDROLOGY MAP: EXISTING CONDITION HYDROLOGY MAP: PROPOSED CONDITION HYDROLOGY MAP: ONSITE P. 3 OF 26 RAISER PERMANENTE MEDICAL CENTER FONTANA, CALIFORNIA JOB NO. 345 -01 -85 V. - li1iZi This study is an assessment on the impact of existing and ultimate drainage patterns on the medical center and ultimately on the existing storm drain system in Valley Boulevard. The hydrology study was conducted following procedures specified by the San Bernardino County Hydrology Manual, (1983). The hydrology analysis used a 10 -year storm frequency for rainfall intensity and, at the recommendation of the City staff, a slope of 0.05 for the intensity- duration curve used for Rational method hydrologic analysis. The analysis assumes that the City of Fontana's master plan of storm drains will ultimately be constructed. A main objective of the hydrology analysis is to determine the capacity of the existing storm drain systems surrounding the medical center and to determine what further storm drain improve- ments, if any, are required to adequately handle the storm runoff. } P.4 of 26 RAISER PERMANENTE MEDICAL CENTER FONTANA, CALIFORNIA JOB NO. 345 -01 -85 The previous hydrology studies as supplied by the City of Fontana for the watershed areas surrounding the Raiser Permanente Medical Center show a much smaller runoff than is indicated from this hydrology study. The increase in runoff predicted can be attri- buted to larger tributary areas in the watershed basin than originally estimated in the 1971 studies done by "R.N.L." and due to the increased percentage of developed land contributing runoff. The results of this hydrology study are compared below with the runoff amounts determined from the 1971 hydrology studies which were used to size the Valley Boulevard storm drain. Because the Valley Boulevard storm drain was designed originally at full capacity the impact on the storm drain from an increased amount of runoff can easily be seen. WATERSHED AREA RUNOFF CFS /ACRE 1971 Study 86.5 acres 113 CFS 1.24 This Study 184.2 acres 251 CFS 1.36 Analysis of the pipe hydraulics for the Valley Boulevard storm drain indicate that the system does not have enough capacity to handle the runoff from the 1971 study and therefore would have to be improved greatly to accommodate the present drainage conditions. O kA I 0 ; ....................... • • 049 n� 3 ................. • • • ........q. 1. Gn AL/6� ................... ............... .......... 0. TO o � r! � C. :h 4 ................... • ................ ........................................................... m 0 o � r! � C. :h 4 ................... • ................ ........................................................... m 0 P. 6 of 26 RAISER PERMANENTS MEDICAL CENTER FONTANA, CALIFORNIA JOB NO. 345 -01 -85 0 ssssss sssssssssssszsssasaaa sass asazss sszs ss sssasssssssss sssssssssssssssss: RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL saa= a = x= xaaxx= axsaasaz xxaaxaxx= xaasaxaz aas asaa zsasaazsa saaaasaasaassassasaa: << << << << << << << << << << << << << << << << << << << >> >> >> >> >> >> >> >> >>>> >> >> >> >> >> >>>> » >. (C) Copyright 1983 Advanced Engineering Software [AES] Especially prepared for: S Y M C A S Symplified Computer Aided Services 3900 BIRCH ST., SUITE 105, NEWPORT BEACH CA., 92660 f2ATA F l L USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------- - - - - -- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.90 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 0.950 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.400 COMPUTED RAINFALL INTENSITY DATA: • STORM EVENT = 10.00 1 -HOUR INTENSITY(INCH /HOUR) 0.9595 • SLOPE OF INTENSITY DURATION CURVE = 0.5000 SBC HYDROLOGY MANUAL "C "- VALUES USED « « « «« << << « « «« << << << «« « « « »» >> >> >> >> »» » » » » » » » » » » >: Advanced Engineering Software [AES] SERIAL No. L1702 REV. 3.0 RELEASE DATE: 5/17/83 FLOW PROCESS FROM NODE 1.00 TO NODE 2.00 IS CODE = 2 ---------------------------------------------------------------------------- 1 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< a= xe== e= s= eeexeexxex= eexxeeexxxeex= ex === aenexxeeeaa= sex = sex= aa eaaasaasaaa = =s ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = R *[(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW- LENGTH = 800.00 UPSTREAM ELEVATION = 1313.50 DOWNSTREAM ELEVATION = 1301.50 ELEVATION DIFFERENCE = 12.00 TC = 0.303 *[( 800.00 * * /( 12.00)) * *.2 - 10.177 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) - 2.330 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8230 SUBAREA RUNOFF(CFS) = 16.87 TOTAL AREA(ACRES) = 8.80 TOTAL RUNOFF(CFS) = 16.87 P. 8 of 26 FLOW PROCESS FROM NODE 2.00 TO NODE 3.00 IS CODE 6 ---------------------------------------------------------------------- - - - - -- » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<< <<< UPSTREAM ELEVATION 1301.50 DOWNSTREAM ELEVATION 1192.90 STREET LENGTH(FEET) 7240.00 CURB HEIGTH(INCHES) 8. STREET HALFWIDTH(FEET) = 50.00 STREET CROSSFALL(DECIMAL) =0.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 * *TRAVELTIME COMPUTED USING MEAN FLOW(CPS) = 55.98 STREET FLOWDEPTH(FEET) - 0.64 HALFSTREET FLOODWIDTH(FEET) = 24.13 AVERAGE FLOW VELOCITY(FEET /SEC.) - 4.66 PRODUCT OF DEPTH &VELOCITY = 2.98 STREETFLOW TRAVELTIME(MIN) = 25.91 TC(MIN) = 36.09 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.237 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 7992 SUBAREA AREA(ACRES) = 75.30 SUBAREA RUNOFF(CFS) = 74.45 SUMMED AREA(ACRES) = 84.10 TOTAL RUNOFF(CFS) = 91.33 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = 0.75 HALFSTREET FLOODWIDTH(FEET) = 29.38 FLOW VELOCITY(FEET /SEC.) = 5.18 DEPTH *VELOCITY = 3.86 FLOW PROCESS FROM NODE 3.00 TO NODE 3.30 IS CODE = 6 » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1192.90 DOWNSTREAM ELEVATION = 1112.50 STREET LENGTH(FEET) = 5360.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 50.00 STREET CROSSFALL(DECIMAL) - 0.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 125.47 NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = 0.82 HALFSTREET FLOODWIDTH(FEET) = 33.13 AVERAGE FLOW VELOCITY(FEET /SEC.) = 5.62 PRODUCT OF DEPTH &VELOCITY = 4.61 STREETFLOW TRAVELTIME(MIN) = 15.89 TC(MIN) = 51.98 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.031 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 7890 SUBAREA AREA(ACRES) = 83.40 SUBAREA RUNOFF(CFS) 67.83 SUMMED AREA(ACRES) = 167.50 TOTAL RUNOFF(CFS) = 159.16 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = 0.88 HALFSTREET FLOODWIDTH(FEET) - 36.13 FLOW VELOCITY(FEET /SEC.) = 6.01 DEPTH *VELOCITY = 5.29 P. 9 of 26 • FLOW PROCESS FROM NODE 3.00 TO NODE 3.00 IS CODE 1 ---------------------------------------------------------------------------- » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< = asxxxxsxxx xxxxxxaxxsxxxsaxsxsxxxsxsxxxxa xxx:= xaaaasaaaasaaa=aaax =as=sassa =- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 51.98 RAINFALL INTENSITY (INCH. /HOUR) = 1.03 TOTAL STREAM AREA (ACRES) = 167.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 159.16 FLOW PROCESS FROM NODE 5.00 TO NODE 6.00 IS CODE 2 ---------------------------------------------------------------------------- » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS<< <<< axxxxxxxxxxxxxxx= xxxxxxxxxxxaxsxxsxxaxxxxsxxaxsx ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = R *((LENGTH * * /(ELEVATION CHANGE)] * *. INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1253.70 DOWNSTREAM ELEVATION = 1238.70 ELEVATION DIFFERENCE = 15.00 TC = 0.303 *(( 1000.00 * *3) /( 15.00)] * *.2 = 11.127 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.228 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8218 SUBAREA RUNOFF(CFS) = 14.28 TOTAL AREA(ACRES) = 7.80 TOTAL RUNOFF(CFS) = 14.28 FLOW PROCESS FROM NODE 6.00 TO NODE 7.00 IS CODE = 6 ---------------------------------------------------------------------------- » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<< <<< - asssasxxsasssasa=ssaaasx =xssxxxaxxxx=xxxxx=xxxxxxxxxxxxxxxx- UPSTREAM ELEVATION = 1238.70 DOWNSTREAM ELEVATION = 1136.70 STREET LENGTH(FEET) = 8000.00 CURB HEIGTH(INCHES) 8. STREET HALFWIDTH(FEET) - 20.00 STREET CROSSFALL(DECIMAL) - 0.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 154.23 ** *STREET FLOWING FULL * ** NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = 0.86 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET /SEC.) = 7.53 PRODUCT OF DEPTH &VELOCITY = 6.48 STREETFLOW TRAVELTIME(MIN) = 17.71 TC(MIN) 28.84 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.384 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8046 SUBAREA AREA(ACRES) 239.80 SUBAREA RUNOFF(CFS) - 267.01 SUMMED AREA(ACRES) = 247.60 TOTAL RUNOFF(CFS) = 281.30 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) - 1.10 HALFSTREET FLOODWIDTH(FEET) = 20.00 FLOW VELOCITY(FEET /SEC.) - 9.42 DEPTH *VELOCITY 10.32 P. 10 of 26 sssssssssssssssssssssss: ssssss :ssssssssssssssssssssss :sssssssss :: sss ssssssss FLOW PROCESS FROM NODE 7.00 TO NODE 8.00 IS CODE 4 ---------------------------------------------------------------------------- >>>>XOMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA <<<<< » » >USING USER- SPECIFIED PIPESIZE<< <<< aa= a= sx == cx= sxxxasaax= xxx= xxa= xa= xosx= a= a= sa= sa= axacsxxaaxaasxaaaaaasaaaxaas PIPEFLOW VELOCITY(FEET /SEC.) = 57.3 UPSTREAM NODE ELEVATION = 1136.70 DOWNSTREAM NODE ELEVATION = 1124.00 FLOWLENGTH(FEET) = 620.00 MANNINGS N = 0.013 GIVEN PIPE DIAMETER(INCH) = 30.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 281.30 TRAVEL TIME(MIN.) = 0.18 TC(MIN.) 29.02 sssssssssss * * * *ss * *ss * ** *sssssss sssssss *sssssss *sssssss *sssssssssssssss * * * ** FLOW PROCESS FROM NODE 8.00 TO NODE 8.00 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< aaassxs= sxxx== sso= sxxxsxxsxxsxxsx= xaxsaasaasxassxxsxxasaxsa 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.380 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8044 SUBAREA AREA(ACRES) = 18.40 SUBAREA RUNOFF(CFS) - 20.42 TOTAL AREA(ACRES) = 266.00 TOTAL RUNOFF(CFS) = 301.72 .. - TC (MIN) = 29.02 ssssssssssssssssssssssss* *sss ssssss* sssssssssssssssssssssssssssssssss :ssssss FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE = 4 >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA «« < »» >USING USER- SPECIFIED PIPESIZE« <<< PIPEFLOW VELOCITY(FEET /SEC.) = 61.5 UPSTREAM NODE ELEVATION = 1124.00 DOWNSTREAM NODE ELEVATION = 1118.00 FLOWLENGTH(FEET) = 650.00 MANNINGS N = 0.013 GIVEN PIPE DIAMETER(INCH) 30.00 NUMBER OF PIPES = 1 'PIPEFLOW THRU SUBAREA(CFS) = 301.72 TRAVEL TIME(MIN.) = 0.18 TC(MIN.) 29.20 ssssssssssssssssssssssssssssssssssssssssssssssssssssss :sssssssssssssssssssss FLOW PROCESS FROM NODE 9.00 TO NODE 9.00 IS CODE = 8 ---------------------------------------------------------------------------- »» >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< aaassxxxxaxxsxxxxxxssxxaxasaxasaaaxaaxasaxaaaaxaasaaaaamaasaasaaaaa 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.376 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT a .8043 SUBAREA AREA(ACRES) 3.90 SUBAREA RUNOFF(CFS) - 4.31 TOTAL AREA(ACRES) 269.90 TOTAL RUNOFF(CFS) 306.03 TC(MIN) - 29.20 P. 11 of 26 FLOW PROCESS FROM NODE 9.00 TO NODE 10.00 IS CODE 4 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » » >USING USER— SPECIFIED PIPESIZE<< <<< sa= srasaax rxrsasxrrararrarassraxraaxraaraxsacrraxrrrsaa raaaasrasa= asaassaa.c PIPEFLOW VELOCITY(FEET /SEC.) = 43.3 UPSTREAM NODE ELEVATION = 1118.00 DOWNSTREAM NODE ELEVATION - 1115.30 FLOWLENGTH(FEET) - 675.00 MANNINGS N - 0.013 GIVEN PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 306.03 TRAVEL TIME(MIN.) = 0.26 TC(MIN.) = 29.46 FLOW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< s= aaarrrsxrrxxrrr== r. rr= rrxrrarxrasxrr= rrasrrsaaaarxaas araar= aasaaaa =s == 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1 .369 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF. COEFFICIENT = .8041 SUBAREA AREA (ACRES) = 11.50 SUBAREA RUNOFF(CFS) = 12.66 TOTAL AREA(ACRES) = 281.40 TOTAL RUNOFF(CFS) = 318.69 TC(MIN) = 29.46 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROK NODE 10.00 TO NODE 11.00 IS CODE = 4 ---------------------------------------------------------------------------- » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< »» >USING USER— SPECIFIED PIPESIZE««< sas= rnxrrrorrarsarsrsaarraas= rsrrrsrrsxr= caraaa= r== xs= �= s aaaaaasaaaa =saamr PIPEFLOW VELOCITY(FEET /SEC.) = 33.1 UPSTREAM NODE ELEVATION = 1115.30 DOWNSTREAM NODE ELEVATION = 1114.30 FLOWLENGTH(FEET) = 325.00 MANNINGS N = 0.013 GIVEN PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) = 318.69 TRAVEL TIME(MIN.) = 0.16 TC(MIN.) = 29.62 P. 12 of 26 FLOW PROCESS FROM NODE 11.00 TO NODE 11.00 IS CODE 8 ------------------------------------------------------------------ >>>>>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< == =3333 a 3 3 a a3 aaa a 3 3 3a 3a 3 3 a 3 a as a 3 a 3 a 3 a 3= 3aa3 a a a aaa 3 a a a a 3 as :a aaaa a a a a a as 3 as a a a 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.366 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8039 SUBAREA AREA(ACRES) 3.30 SUBAREA RUNOFF(CFS) 3.62' TOTAL AREA(ACRES) 284.70 TOTAL RUNOFF(CFS) 322'.32 TC(MIN) = 29.62 FLOW PROCESS FROM NODE 11.00 TO NODE 3.30 IS CODE = 4 ------------------------------------------------------------------------- » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< >>>>>USING USER- SPECIFIED PIPESIZE<< <<< aaa= ss s3s33ss33ss3sss3s3s3e= s 3 e 3 s 3 s 3 s 3333 a 33 s 3= a33sS3a3333= 33= a3aasaaaaaa33s PIPEFLOW VELOCITY(FEET /SEC.) = 33.5 UPSTREAM NODE ELEVATION = 1114.30 DOWNSTREAM NODE ELEVATION = 1112.50 FLOWLENGTH(FEET) = 300.00 MANNINGS N = 0.013 GIVEN PIPE-DIAMETER(INCH) = 42.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) = 322.32 - TRAVEL TIME(MIN.) = 0.15 TC(MIN.) _- 29.77 FLOW PROCESS FROM NODE 3.30 TO NODE 3.30 IS CODE 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES « «< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 29.77 RAINFALL INTENSITY (INCH. /HOUR) 1.36 TOTAL STREAM AREA (ACRES) = 284.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 322.32 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- 1 159.16 51.98 1.031 2 322.32 29.77 1.362 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 403.07 413.46 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 413.46 TIME(MINUTES) = 29.768 TOTAL AREA(ACRES) = 452.20 P. 13 of 26 FLOW PROCESS FROM NODE 3.30 TO NODE 4.00 IS CODE 4 ---------------------------------------------------------------------------- » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA « «< » » >USING USER— SPECIFIED PIPESIZE<< <<< s ass = solos== sa= ss= asszsa == sass= aaas= sa= aasasz= saa= s assaa == a== saaaaaasaamssa PIPEFLOW VELOCITY(FEET /SEC.) - 32.9 UPSTREAM NODE ELEVATION = 1112.50 DOWNSTREAM NODE ELEVATION 1109.50 FLOWLENGTH(FEET) = 600.00 MANNINGS N = 0.013 GIVEN PIPE DIAMETER(INCH) 48.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 413.46 TRAVEL TIME(MIN.) = 0.30 TC(MIN.) 30.07 FLOW PROCESS FROM NODE 4.00 TO NODE 4.00 IS CODE = 8 ---------------------------------------------------------------------------- »»>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< alas=== == nsssass- ssssassasasasa= sass== assaes === ssaasssas =zsaaasamaaaasa 10.00 YEAR RAINFALL INTENSITY(INCH /BOOR) = 1.355 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8036 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) = 8.82 TOTAL AREA(ACRES) = 460.30 TOTAL RUNOFF(CFS) = 422.28 _ TC(MIN) = 30.07 FLOW PROCESS FROM NODE 4.00 TO NODE 4.00 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< aazaasssassss== ssaassaa= aaassasaasaaaaasaa= saassaaa= sa= z sa= sa= =a= saasaaaaa 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.355 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8036 SUBAREA AREA(ACRES) = 9.60 SUBAREA RUNOFF(CFS) = 10.46 TOTAL AREA(ACRES) = 469.90 TOTAL RUNOFF(CFS) 432.74 TC(MIN) = 30.07 aazaaassss= sssssssssasaaasasasass= szssas= szsasaaszasaaasza= aza :aasasassas :sa END OF RATIONAL METHOD ANALYSIS P. 14 of 26 RAISER PERMANENTE MEDICAL CENTER FONTANA, CALIFORNIA JOB NO. 345 -01 -85 P. 15 of 26 satsssss sass sssssssassss sss asas sssss sssassasassssssssssss RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON SAN BERNARDINO COUNTY (SBC) 1983 HYDROLOGY MANUAL saaxxx= x x= xx== x= xaxnxxxaxx= x= x= x. saxx= xxaa a aaasaa =xsxsaassss aaaaaaasaasaaaa <<<<<< <<<< << << << << << << << << << << << << << <<>> >> >> >> >> >>>>>>>>>> » >>>>>>>>>>>> >>>> (C) Copyright 1983 Advanced Engineering Software [AES] Especially prepared for: S Y M C A S Symplified Computer Aided Services 3900 BIRCH ST., SUITE 105, NEWPORT BEACH CA., 92660 « « «« << << << << << «« << << << << << «« «» >> >> » » »» » » »» >> » » » » »» >> 60 261 h ----------------------------------------------------------- - - - = -- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 10.00 SPECIFIED MINIMUM PIPE SIZE(INCH) 18.00 SPECIFIED PERCENT OF GRADIENTS(DECIMAL) TO USE FOR FRICTION SLOPE = 0.90 10 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 0.950 100 -YEAR STORM 60- MINUTE INTENSITY(INCH /HOUR) = 1.400 ...COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 10.00 1 -HOUR INTENSITY(INCH /HOUR) = 0.9595 SLOPE OF INTENSITY DURATION CURVE = 0.5000 SBC HYDROLOGY MANUAL "C "-VALUES USED << «« << << << << << « «« << << << << << «« «» >> » » »» » »» » » » »» » » » »» Advanced Engineering Software [AES] SERIAL No. L1702 REV. 3.0 . RELEASE DATE: 5/17/83 « « « « «« « «« «« << << << << « « « « » » » » »» » » » » » » » » » » » »» FLOW PROCESS FROM NODE 1.00 TO NODE 2.00 IS CODE - 2 » »> RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< sa= = =xx= =aaxo== =aa =a= axis= aaaxa== axxxsaa= asaaaa= aaaaaaaaa =sasa=assaa ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = R *[(LENGTH * *3) /(ELEVATION CHANGE)] * *.2 INITIAL SUBAREA FLOW- LENGTH = 1100.00 UPSTREAM ELEVATION = 1155.10 DOWNSTREAM ELEVATION = 1139.00 ELEVATION DIFFERENCE = 16.10 TC - 0.393 *[( 1100.00 * *3) /( 16.10)] * *.2 = 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT SUBAREA RUNOFF (CFS) - 6.31 15.046 1.916 _ .6859 TOTAL AREA(ACRES) - 4.80 TOTAL RUNOFF(CFS) = 6.31 P. 16 of 26 `FLOW PROCESS FROM NODE 2.00 TO NODE 3.00 IS CODE 3 ---------------------------------------------------------------------------- » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< . » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< == as = ssssasaassssassssss= sssassasssssassassaaaxaa =sa = =saa =as :aaaaaaa = :sass DEPTH OF FLOW IN 18.0 INCH PIPE IS 13.4 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 4.5 UPSTREAM NODE ELEVATION = 1139.00 DOWNSTREAM NODE ELEVATION 1136.70 FLOWLENGTH(FEET) = 470.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 18.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CPS) = 6.31 TRAVEL TIME(MIN.) = 1.75 TC(MIN.) 16.80 FLOW PROCESS FROM NODE 3.00 TO NODE 3.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< == aassoxsxxxxasssxxsssassxsxxssssxsxs= sexasssa= sxaasxxassssas 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.813 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT = . 6766 SUBAREA AREA(ACRES) = 19.50 SUBAREA RUNOFF(CFS) = 23.92 TOTAL AREA(ACRES) = 24.30 TOTAL RUNOFF(CFS) = 30.23 TC(MIN) = 16.80 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 3.00 TO NODE 3.00 IS CODE = 1 » » >DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE « «< aassasxsxxssasssxsssxxxsxsssxxsssxcsssssxs= ssssssasxxsasssasssasx =:sa CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 16.80 RAINFALL INTENSITY (INCH. /HOUR) 1.81 TOTAL STREAM AREA (ACRES) = - 24.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 30.23 FLOW PROCESS FROM NODE 4.00 TO NODE 5.00 IS CODE = 2 ---------------------------------------------------------------------------- » » >RATIONAL METHOD INITIAL SUBAREA ANALYSIS « «< ssssxxxssssssssssassssssssssaasassesesseeaaasas =seas= saaaeesaaasaaasas =aa ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS SINGLE FAMILY (1/4 ACRE) TC = R *[(LENGTH * * /(ELEVATION CHANGE)] * *. INITIAL SUBAREA FLOW- LENGTH = 1100.00 UPSTREAM ELEVATION = 1155.50 DOWNSTREAM ELEVATION = 1138.00 ELEVATION DIFFERENCE = 17.50 TC - 0.393 *[( 1100.00 * *3) /( 17.50)] * *.2 - 14.797 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) - 1.932 SOIL CLASSIFICATION IS "A" SINGLE- FAMILY(1 /4 ACRE LOT) RUNOFF COEFFICIENT - . 6872 SUBAREA RUNOFF(CFS) = 28.28 TOTAL AREA(ACRES) = 21.30 TOTAL RUNOFF(CFS) 28.28 P. 17 of 26 s.ss:sssssssss* ssss sss*s sssss sss, rs::: s: ss:s ss: ss�ssssss :s :s : :ss :ss :ssssssssss FLOW PROCESS FROM NODE 5.00 TO NODE 3.00 IS CODE a 3 ---------------------------------------------------------------------------- » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) << <<< aaas s s xxsxxxsxxxxsxxxxxxxssxxxsxssxsxssssxxsssassxaaxs =saga= ssssxxaaxxaaaaas DEPTH OF FLOW IN 36.0 INCH PIPE IS 26.1 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 5.1 UPSTREAM NODE ELEVATION = 1138.00 DOWNSTREAM NODE ELEVATION = 1136.70 FLOWLENGTH(FEET) = 500.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) = 36.00 PIPEFLOW THRU SUBAREA(CFS) = 28.28 TRAVEL TIME(MIN.) = 1.62 TC(MIN.) N = 0.013 NUMBER OF PIPES = 16.42 1 sss sss**************************** s* s* ss* s*** ss * * * * * * * * * * * * *s * * * * * * * * * * *ss ** FLOW PROCESS FROM NODE 3.00 TO NODE 3.00 IS CODE = 1 ----- - - - - -- ----------------------------------------------------------- - - - - -- >> >>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE« <<< » » >AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<< <<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) = 16.42 RAINFALL INTENSITY (INCH. /HOUR) = 1.83 TOTAL STREAM AREA (ACRES) = 21.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 28.28 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCA /HOUR) 1 30.23 16.80 1.813 2 28.28 16.42 1.834 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 58.19 57.82 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 58.19 TIME(MINUTES) = 16.799 TOTAL AREA(ACRES) = 45.60 * ss* s* s* s, rs**************** ss** s** sss ss* s*s s* ss *s * *sssssssssss *ssssssssssssi FLOW PROCESS FROM NODE 3.00 TO NODE 6.00 IS CODE = 3 ---------------------------------------------------------------------------- >> >>> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< = xxxax= xxxxsxxxxxxxxx= x= x- sx----- xxss--- sasaxassa sasxssaaaaaaaaa =aaax= DEPTH OF FLOW IN 33.0 INCH PIPE IS 22.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 13.5 UPSTREAM NODE ELEVATION = 1136.70 DOWNSTREAM NODE ELEVATION 1124.00 FLOWLENGTH(FEET) = 620.00 MANNINGS ESTIMATED PIPE DIAMETER(INCH) 33.00 PIPEFLOW THRU SUBAREA(CFS) = 58.19 TRAVEL TIME(MIN -) = 0.77 TC(MIN.) N - 0.013 NUMBER OF PIPES = = 17.57 1 P. 18 of 26 FLOW PROCESS FROM NODE 3.00 TO NODE 6.00 IS CODE 8 ------------------------------------------------------------ --------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< s a= saaaxaas axasaxaxaxsxaxaa= ssaasxx= xs= ax a= a= sasxaaaa == aasaaaaaaaaaasaassaa= 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.773 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8145 SUBAREA AREA(ACRES) = 14.30 SUBAREA RUNOFF(CFS) = 20.65 TOTAL AREA(ACRES) = 59.90 TOTAL RUNOFF(CFS) 78.84 TC(MIN) = 17.57 FLOW PROCESS FROM NODE 6.00 TO NODE 7.00 IS CODE 3 --------------------------------------------------------------- >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE PLOW) << <<< assn s== ss= s= ss= s= c=== sss= ssas= ss= s= a== sssa= ss= assassssasaasas === aasaasa =a=. DEPTH OF FLOW IN 42.0 INCH PIPE IS 30.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.7 UPSTREAM NODE ELEVATION = 1124.00 DOWNSTREAM NODE ELEVATION = 1118.90 FLOWLENGTH(FEET) = 550.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 78.84 TRAVEL TIME(MIN.) = 0.85 TC(MIN.) = 18.42 FLOW PROCESS FROM NODE 6.00 TO NODE 7.00 IS CODE = 8 ------------------------------------------------------------------------ »» >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< ---- sasaaaaasasa == assss==scsssss=s=sss=s=s=s==sasss=sss=s 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.732 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8137 SUBAREA AREA(ACRES) 2.20 SUBAREA RUNOFF(CFS) = 3.10 TOTAL AREA(ACRES) = 62.10 TOTAL RUNOFF(CFS) = 81.94 TC(MIN) = 18.42 FLOW PROCESS FROM NODE 7.00 TO NODE 8.00 IS CODE 3 >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< = aasss= sss= s=== s== s= assaasasaaasaasaassaa aaass= =aaaaaasaaaaaaasaaazsaaams DEPTH OF FLOW IN 42.0 INCH PIPE IS 31.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 10.7 UPSTREAM NODE ELEVATION = 1118.90 DOWNSTREAM NODE ELEVATION - 1118.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 42.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) = 81.94 TRAVEL TIME(MIN.) = 0.16 TC(MIN.) 18.58 P. 15 of 26 FLOW PROCESS FROM NODE 7.00 TO NODE 8.00 IS CODE 8 -------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.724 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8135 SUBAREA AREA(ACRES) = 1.70 SUBAREA RUNOFF(CFS) - 2.38 TOTAL AREA(ACRES) = 63.80 TOTAL RUNOFF(CFS) 84.33 TC(MIN) = 18.58 ]� 7f Ji if �{ if ]f i. ]f Ji if �i if 7i 1C i� if �f •f � � � li ]� •f iC ]. �f � ]i if Ji i. i� l{ ]L �L if Jf iG � ]f ]f i. iL i� if 1� � if ]C if i. i{ if Jf if i. if it Jf if if .f 1{ if i� if i{ if ii Jf ii 1f !L �i FLOW PROCESS FROM NODE 8.00 TO NODE 9.00 IS CODE 3 --------------------------------------------------------------------------- » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » » >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 51.0 INCH PIPE IS 38.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 7.4 UPSTREAM NODE ELEVATION = 1118.00 DOWNSTREAM NODE ELEVATION = 1116.50 FLOWLENGTH(FEET) = 450.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 51.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) = 84.33 TRAVEL TIME(MIN.) = 1.02 TC(MIN.) = 19.59 FLOW PROCESS FROM NODE 9.00 TO NODE 9.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.679 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8125 SUBAREA AREA(ACRES) = 11.50 SUBAREA RUNOFF(CFS) = 15.69 TOTAL AREA(ACRES) = 75.30 TOTAL RUNOFF(CFS) = 100.02 TC(MIN) = 19.59 FLOW PROCESS FROM NODE 9.00 TO NODE 10.00 IS CODE = 3 >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA« <<< »» >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 51.0 INCH PIPE IS 36.3 INCHES PIPEFLOW VELOCITY(FEET /SEC.) - 9.3 UPSTREAM NODE ELEVATION = 1116.50 DOWNSTREAM NODE ELEVATION = 1115.30 FLOWLENGTH(FEET) - 225.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 51.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 100.02 TRAVEL TIME(MIN.) = 0.40 TC(MIN.) 20.00 P. 20 of 26 * �t�*,►, e:* �, e: t�+ t:: �, t: f***: �* �t+ t►* e+ �*: ��t��+ t: �r*: ts�� tsts � ::: � � :it : � t :it :tt :it FLOW PROCESS FROM NODE 10.00 TO NODE 10.00 IS CODE 8 ---------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< ssxxx== s xx= x== x= asxxs= axa== xaaxaxzxsaa= ax az= zaa= xaxxaaxsasxazass= xazazzsazsx 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.662 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8122 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 4.45 TOTAL AREA(ACRES) 78.60 TOTAL RUNOFF(CFS) 104.47 TC(MIN) = 20.00 FLOW PROCESS FROM NODE 10.00 TO NODE 11.00 IS CODE 3 ---------------------------------------------------- >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< >> >>>USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 57.0 INCH PIPE IS 45.6 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 6.9 UPSTREAM NODE ELEVATION = 1115.30 DOWNSTREAM NODE ELEVATION 1114.50 _FLOWLENGTH(FEET) = 325.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) = 57.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 104.47 TRAVEL TIME(MIN.) = 0.79 TC(MIN.) = 20.78 FLOW PROCESS FROM NODE, 11.00 TO NODE 11.00 IS CODE = 8 ------------------------------------------------------------------ »»>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< szxsxs= s= xsxxx= s= x======== x= x= xxxa= xsx= x= xsxex== xs== sxa=== asaxsxxaxsx= z=zx == 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1 .630 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8114 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 4.37 TOTAL AREA(ACRES) = 81.90 TOTAL RUNOFF(CFS) = 108.84 TC(MIN) = 20.78 FLOW PROCESS FROM NODE 11.00 TO NODE 12.00 IS CODE = 3 >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< »» >USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< zazxxxxxxxxx= sx= xs= x== x= xszxxxxxsaesx= x= xz xaxxzzxsza= zxs= xaszzx= za -szz =zees= DEPTH OF FLOW IN 51.0 INCH PIPE IS 37.0 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 9.9 UPSTREAM NODE ELEVATION = 1114.30 DOWNSTREAM NODE ELEVATION - 1112.50 FLOWLENGTH(FEET) = 300.00 MANNINGS N - 0.013 ESTIMATED PIPE DIAMETER(INCH) 51.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) = 108.84 TRAVEL TIME(MIN.) = 0.51 TC(MIN.) 21.29 P. 21 of 26 FLOW PROCESS FROM NODE 12.00 TO NODE 12.00 IS CODE 1 -------------------------------------------------------- >> >>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<< <<< =sza a=======aa-====ea====aaxaa=a=a==a=a===a= aaZa==a=eaaa=aaaa==aaaaaa=a=aam= CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) 21.29 RAINFALL INTENSITY (INCH. /HOUR) = 1.61 TOTAL STREAM AREA (ACRES) = 81.90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 108.84 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 15.00 TO NODE 15.10 IS CODE 2 ---------------------------------------------------------------------------- » »>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<< <<< - - - - - -- - - - - -- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = R *[(LENGTH * * /(ELEVATION CHANGE) ] * *. INITIAL SUBAREA FLOW- LENGTH = 1000.00 UPSTREAM ELEVATION = 1192.80 DOWNSTREAM ELEVATION = 1177.80 ELEVATION DIFFERENCE = 15.00 TC = 0.303 *[( 1000.00 * *3) - /( 15.00)] * *. = 11.127 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 2.228 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8218 SUBAREA RUNOFF(CFS) = 12.82 TOTAL AREA(ACRES) = 7.00 TOTAL RUNOFF(CFS) 12.82 ********************************************* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ** FLOW PROCESS FROM NODE 15.10 TO NODE 15.20 IS CODE 6 ---------------------------------------------------------------------------- » » >COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA « «< UPSTREAM ELEVATION = 1177.80 DOWNSTREAM ELEVATION 1152.30 STREET LENGTH(FEET) = 1750.00 CURB HEIGTH(INCHES) = 8. STREET HALFWIDTH(FEET) = 50.00 STREET CROSSFALL(DECIMAL) =0.0200 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 * *TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 23.17 STREET FLOWDEPTH(FEET) = 0.61 HALFSTREET FLOODWIDTH(FEET) = 22.63 AVERAGE FLOW VELOCITY(FEET /SEC.) = 4.36 PRODUCT OF DEPTH &VELOCITY = 2.67 STREETFLOW TRAVELTIME(MIN) = 6.68 TC(MIN) = 17.81 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.761 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8143 SUBAREA AREA(ACRES) = 14.30 SUBAREA RUNOFF(CFS) - 20.51 SUMMED AREA(ACRES) = 21.30 TOTAL RUNOFF(CFS) = 11.32 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH(FEET) = 0.67 HALFSTREET FLOODWIDTH(FEET) = 25.63 FLOW VELOCITY(FEET /SEC.) = 4.93 DEPTH *VELOCITY = 3.31 P. 22 of 26 • s* �:: �s�*** t�:*:, ��: ��, r�*: �r*:, r*, r+ e: �: e e: �►* ��* �t+ e*::* es : :� : :� : * : *s *�► : : :it :s : :: FLOW PROCESS FROM NODE 15.20 TO NODE 15.20 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<< <<< ss aaaaxx= a= aaaxaaaxxaaxxaxxax=a axaaxaaaxx= axaaaxaaxxaaxxxxaxxxa= saaaax =xsx == 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.761 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8143 SUBAREA AREA(ACRES) = 17.60 SUBAREA RUNOFF(CFS) - 25 TOTAL AREA(ACRES) 38.90 TOTAL RUNOFF(CFS) 58.56 ' TC(MIN) = 17.81 FLOW PROCESS FROM NODE 15.20 TO NODE 16.00 IS CODE 3 » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< >> >>>USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 33.0 INCH PIPE IS 25.8 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.8 UPSTREAM NODE ELEVATION = 1152.30 DOWNSTREAM NODE ELEVATION = 1143.30 FLOWLENGTH(FEET) = 600 - .00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) = 33.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 58.56 TRAVEL TIME(MIN.) = 0.85 TC(MIN.) = 18.66 FLOW PROCESS FROM NODE 16.00 TO NODE 16.00 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW « «< 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.721 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8134 SUBAREA AREA(ACRES) = 4.70 SUBAREA RUNOFF(CFS) = 6.58 TOTAL AREA(ACRES) = 43.60 TOTAL RUNOFF(CFS) 65.14 TC(MIN) = 18.66 FLOW PROCESS FROM NODE 16.00 TO NODE 16.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<< <<< == xxxaaxxa= xxxxaxxxx= e==== a= x= xxaxxaxxx= axxxcxxxaexxxxa= xaxaa=ax=xxa= as =xxxa 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.721 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8134 .SUBAREA AREA(ACRES) 4.10 SUBAREA RUNOFF(CFS) 5.74 TOTAL AREA(ACRES) = 47.70 TOTAL RUNOFF(CFS) 70.88 TC(MIN) = 18.66 P. 23 of 26 ) FLOW PROCESS FROM NODE 16.00 TO NODE 16.00 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< ssssssss rsssss= saxs== s= ss= sssxsrsssssas= sssas= sssss ssssxsssrss= sssxsasscssas 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.721 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8134 SUBAREA AREA(ACRES) = 2.90 SUBAREA RUNOFF(CFS) 4.06 TOTAL AREA(ACRES) 50.60 TOTAL RUNOFF(CFS) 74.94 TC(MIN) = 18.66 FLOW PROCESS FROM NODE 16.00 TO NODE 17.00 IS CODE = 3 ---------------------------------------------------------------------------- >> >>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< >> >>>USING COMPUTER- ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< ssssxx=csx=ssss=sssss=sssss==sr=ss=sssssr=sssssssss=sss=s= DEPTH OF FLOW IN 36.0 INCH PIPE IS 28.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 12.5 UPSTREAM NODE ELEVATION = 1143.30 DOWNSTREAM NODE ELEVATION 1123.80 FLOWLENGTH(FEET) = 1300.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) = 36.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 74.94 TRAVEL TIME(MIN.) = 1.73 TC(MIN.) 20.39 FLOW PROCESS FROM NODE 17.00 TO NODE 17.00 IS CODE = 8 ---------------------------------------------------------------------------- >> >>>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW « «< 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.646 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8118 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 4.41 TOTAL AREA(ACRES) = 53.90 TOTAL RUNOFF(CFS) = 79.35 TC(MIN) = 20.39 FLOW PROCESS FROM NODE 17.00 TO NODE 17.00 IS CODE 8 ---------------------------------------------------------------------------- >> >>>ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< = ssss== xcs== sssss= sxssss= ssrsss= sse= srsr== ssarss= sssss= sss=s= r rssassssarasss 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.646 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8118 SUBAREA AREA(ACRES) = 9.40 SUBAREA RUNOFF(CFS) = 12.56 TOTAL AREA(ACRES) = 63.30 TOTAL RUNOFF(CFS) 91.91 TC(MIN) - 20.39 P. 24 of 26 FLOW PROCESS FROM NODE 17.00 TO NODE 12.00 IS CODE = 3 ---------------------------------------------------------------------------- » » >COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » »>USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW) « «< aasxxsss ssxssxxxxsxxsxxssxxxsxsxxaxsxx=sxa=ss==xxsssx=sxsxs=xas =sasssx=azs== DEPTH OF FLOW IN 39.0 INCH PIPE IS 30.5 INCHES PIPEFLOW VELOCITY(FEET /SEC.) - 13.2 UPSTREAM NODE ELEVATION = 1123.80 DOWNSTREAM NODE ELEVATION 1112.50 FLOWLENGTH(FEET) = 750.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) 39.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 91.91 TRAVEL TIME(MIN.) = 0.95 TC(MIN.) 21.34 FLOW PROCESS FROM NODE 12.00 TO NODE 12.00 IS CODE 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< ssssssxxssxsssssxxxx= sxx== xsacaxssssx= sssssxxsssxxxsxxsxxxs ssxxssss sass == 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.609 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = . 8109 SUBAREA AREA(ACRES) = 7.00 SUBAREA RUNOFF(CFS) = 9.13 TOTAL AREA(ACRES) = 70.30 TOTAL RUNOFF(CFS) = 101.04. TC(MIN) = 21.34 FLOW PROCESS FROM NODE 12.00 TO NODE 12.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.609 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8109 SUBAREA AREA(ACRES) 14.30 SUBAREA RUNOFF(CFS) 18.66 TOTAL AREA(ACRES) = 84.60 TOTAL RUNOFF(CFS) = 119.69 TC(MIN) = 21.34 P. 25 of 26 FLOW PROCESS FROM NODE 12.00 TO NODE 12.00 IS CODE 1 ---------------------------------------------------------------------------- >> >>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<< <<< >> >>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<< <<< == sassaaxxxxxxxxxxxsasssssassaassaaassssaaaaaaxaasaaaaaasasaaaaaaaaaaa =aaaaa CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 21.34 RAINFALL INTENSITY (INCH. /HOUR) = 1.61 TOTAL STREAM AREA (ACRES) = 84.60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 119.69 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN.) (INCH /HOUR) ---------------------------------------------------------------------------- 1 108.84 21.29 1.611 2 119.69 21.34 1.609 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA(SBC) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 228.25 228.41 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF(CFS) = 228.41 TIME(MINUTES) 21.341 TOTAL AREA(ACRES) = 166.50 FLOW PROCESS FROM NODE 12.00 TO NODE 14.00 IS CODE = 3 » »> COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<< <<< » » >USING COMPUTER - ESTIMATED PIPESIZE (NON- PRESSURE FLOW)<< <<< DEPTH OF FLOW IN 69.0 INCH PIPE IS 51.2 INCHES PIPEFLOW VELOCITY(FEET /SEC.) = 11.1 UPSTREAM NODE ELEVATION = 1112.50 DOWNSTREAM NODE ELEVATION = 1109.50 FLOWLENGTH(FEET) = 600.00 MANNINGS N = 0.013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 228.41 TRAVEL TIME(MIN.) = 0.90 TC(MIN.) = 22.25 !!!# t### t### t###### t### t############!!! t#! t## !!! # #t # #! # #!tt!!! #!! # # # #!!!!! #! FLOW PROCESS FROM NODE 14.00 TO NODE 14.00 IS CODE = 8 ---------------------------------------------------------------------------- »» >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW<< <<< aaaaaxxxxaaxeaaxaa= xa =sxaaaaaaaaaaaaaaaaaaaaaaa =aaa = aaa== aaaaaaaaaaa =a =a =a == 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) 1.576 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8101 SUBAREA AREA(ACRES) = 8.10 SUBAREA RUNOFF(CFS) - 10.34 TOTAL AREA(ACRES) 174.60 TOTAL RUNOFF(CFS) = 238.74 TC(MIN) - 22.25 P. 26 of 26 FLOW PROCESS FROM NODE 14.00 TO NODE 14.00 IS CODE = 8 ---------------------------------------------------------------------------- » » >ADDITION OF SUBAREA TO MAINLINE PEAR FLOW < <<< sssasx sxaxxasxaxxxxsxaaamxaxxaxssaxsasxxss= xsssxssaax= ssxx= saaxsaxssssasxaxs 10.00 YEAR RAINFALL INTENSITY(INCH /HOUR) = 1.576 SOIL CLASSIFICATION IS "A" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT .8101 SUBAREA AREA(ACRES) = 9.60 SUBAREA RUNOFF(CFS) 12.25 TOTAL AREA(ACRES) = 184.20 TOTAL RUNOFF(CFS) x 251.00 TC (MIN) 22.25 sssxsxxxxsxsssxxxsssssxxsssoxsas= ssxsssxxasxsssasxxsxxssxsssxasssaxsxxxxxx END OF RATIONAL METHOD ANALYSIS CI VI ENGINEERS S U R V E Y O R S Wagner- Stanford 201 E. Yorba Linda Blvd. Placentia, CA 92670 (714) 993 -4500 January 8, 1986 Mr. Robert Schoenborn, City Engineer City of Fontana 8353 Sierra Avenue Fontana, CA 92335 Subject: Hydrologic and Hydraulic Analysis of Raiser Permanente Medical Center and Surrounding Area Dear Mr. Schoenborn: Job No. 345 -01 -85 Please find enclosed two copies of our report of hydrologic analysis at Raiser Medical Center. We are submitting this report for your review as a basis of discussion of possible storm drain improvements. Please note that because this report was prepared in early 1985, some of the storm drain lines shown as proposal may have already been built. We would like to meet with your office and representatives from Raiser Permanente Medical Center at your earliest convenience. Thank you for your assistance. Sincerely, W ER-�STANFORD CONSULTANTS Dana Halladay Project Manager DH /pk Enclosure cc: Ron Watson - AMC Without Enclosures