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Home My WebLink AboutHydrology(Feb.1991) 1~Od3~ S:Jlln'v'~a^H aN'v' ^~OlO~a^H 10S laa "BUIOI"Bd L -98 L 170 0 1:J'v'~1 ~O::l NI'v'~a II\I~OlS o sarpado.ld p.loJpaa :~O, 03Wd3&l ~ , o 06EZ61l!WOJ!J1!:) 'eJIl:laW:l~ osz :l1!ns ':lA!JQ:l\1l0 :lJllII!S S9L8Z .iir... ....,-'6:''0JO_'''"!lI!Ab.1I!olr.1''''I''t6 all:> :AS a3Wd3~d qOlJ1lf) PllllI!H 'U1lWJ.(~ :l'I!W :SUOSJ:ld l:l1l1UO:) ,II :( ~~' !I oJ' 0, ,: jfJ, '. '~ ,'1' Ii i ,,'! ".=-=)5' - . ' 'j U'ilAI'il::>all 131iiO OHIOIl\l"1I38 IlVS SUVI30SSV NVOlllM lG6ll. - ~\tW =Nr 166l 'Awn~S3, \ ,. -I '1 I I I I I I I I I I I I I I I I I. II. III. IV. EXHIBITS "A" "B" "e" APPENDIX "A" "Bit "e" liD" TABLE OF CONTENTS INlRODUCTION HYDROLOGY CATCH BASIN DESIGN STORM DRAIN DESIGN LOCATION MAP SOILS MAP STORM DRAIN LOCATION PAGE NO. 1 2 4 5 1A 2A 4A 10- AND 100-YEAR HYDROLOGY (RATIONAL METHOD) HYDROLOGY MAP CATCH BASIN DESIGN CALCULATIONS AND GUTTER CAPACITY ANALYSIS STORM DRAIN HYDRAULIC ANALYSIS -~. -z,. I I . I .. 'I I I I I I '. . I . . I . I I. INlRODUCTION This report includes the hydrologic and hydraulic calculations performed for the design of onsite drainage facilities for Tract No. 24136-1. The Paloma Del Sol residential development is proposed for the City of Temecula, California. The owner/developer of the site is Bedford Properties. The development site is located east of Interstate Route 15 and south of Rancho California Road, as shown on Exhibit "A". The project area is ~enerally bound by Meadows Parkway to the east, De Portola Road to the south, Pio Pico; Road to the west and Montilegro Street to the north. The data provided in this report was used as a basis for the design of street and storm drain improvements. The primary objectives of this report are as follows: 1. Delineate the drainage areas tributary to the onsite catch basins in Tract No. 24136-1. 2. Based on drainage patterns, ground slope, land use, and soil type and using the Riverside County Rational Method, perform a hydrologic analysis of onsite runoff to provide 1O- and 100-year design flows for the sizing of drainage facilities. ' 3. Based on the hydrology results and physical site requirements, design the catch basins and storm drain laterals to convey the computed design discharges. Drainage conveyed through Laterals "A" and "B" Tract 24136-1 tie into a 96" mainline running along Montilegro Street and Pio Pico Road. Approved mainline plans and hydraulic data, prepared by Robert Bein, William Frost and Associates per Tract 24131. - 1 - 'b I I I I I I I I I I I I I I I I I I I MORENO VALLEY CORONA LAKE SKINNER f/ P~~~S HEMET ~ VAIL RIVERSIDE COUNTY LAKE' SAN DIEGO CQUNTY( TEMECULA * ~ ........................ \' .l__________ _______ _____________ 15 Project Location FALLBROOK rn PALOMA DEL SOL Regional Location Map C'OO "Jt>berf"Beizt. 'WilHam <Jtb<rt Ql~ -y IN 400133 FEBRUARY 1991 A. - ! I I I I I I I I I I I I I I I ! I I I I I II. HYDROLOGY In-Tract Hydrology Hydrologic calculations were performed using the Riverside County Rational Method from RCFC & WCD Hydrology Manual dated April 1978. The 10- and 100-year design discharge at each storm drain inlet was computed by generating a hydrologic "link-node" mOdel which divides the area into drainage subareas, each tributary to a concentration point or hydrologic "mode" point determined by the proposed street layout. The computer results are;included in Appendix "A", The following assumptions/guidelines were applied for use of the!Rational Method: 1. The soils map from the Riverside County Hydrology Manual indicates that the study area is primarily Group "B" and "C" soils, Soil type "C" was used in the hydrologic calculations, Soils ratings are based on a scale of A through D, where D is: the least pervious, providing the greatest storm runoff. The soils map, excerpted :from the Hydrology Manual, is included as Exhibit "B". 2. The runoff coefficients specified are: 1/4-acre residential lots, undeveloped open- space for the recreation area, mobile home park, condominium and commercial; to describe the proposed development characteristics. Condominium land u~e is used for residential single family residential lots with approximately 4500 Sq.Ft. lot size to represent a realistic runoff for the proposed density. 3. Initial subareas were drawn to be less than 10-acres in size and less than 1,000 feet in length per County guidelines. 4. Pipe travel times were computed based on preliminary computer-estimated pipe sizes, A minimum pipe size of 18-inches were specified, and 90 percent of the actual pipe slope was ,assumed available for the pipe friction losses. 5, Standard intensity-duration curve data was taken from the County Hydrology Manual (values apply for Murrieta- Temecula and Rancho California areas). For th~ 100-year analysis, the data specifies a 100-year lO-minute rainfall intensity of 3.46 incpes/hour and a 1000year 6O-minute rainfall intensity of 1.40 inches/hour. For th~ lO-year analysis, the data specifies a 10-year 10-minute rainfall intensity of 2.36 inches/hour and a 10-year 60-minute rainfall intensity of 0.88 inches/hour. The resulting 10- and 1000year discharges at proposed catch basin locations are flagged on the Rational Method computer summary, Appendix "A", and on the Hydrol()gy Map, Appendix "B", Normal flow depths for street sections were estimated using the Los Angeles County Flood Control Street Flow charts, Appendix "C". - 2- ~ I I .. Cl z I .. :I: 0 w Q, w I .J Cl Z .. a: 0 .. I :> 0 iii C! U! :> I I I I :I: l- I a: 0 z , - I I I I I I I CD ~ < I I (p I I I I I I I I I I I I I I I I I I I III, CATCH BASIN DESIGN Catch basins, shown on the Hydrology Map, have been designed to collect storm runoff from Tract Number 24136-1. Catch basins placed in "sump" conditions are sized based on a 100- year design discharge according to County guidelines. The remaining on-grade basins are designed for the 10o-year discharge. Design Chart D-13 from the Los Angeles County Flood Control District Hydraulic Design Manual was used for the sizing of catch basin grating capacities, Detailed gutter capacity analyses and detailed catch basin calculations are included as Appendix "C". -:..> - 4 - "'\ T- I I I I I I I I I I I I I I I I I I I IV, STORM DRAIN DESIGN The results from the Rational Method hydrology and catch basin design were used to prepare a steady-state hydraulic analysis of the storm drain system under the predicted 10- year and 100-year flow conditions. The computer program published by the Los Angeles County Flood Control District (LACFCD), capable of analyzing systems of pipes under partial, full or pressure flow conditions, was used for design, The computer results and input listing for the hydraulic analysis are included as Appendix "D". Pipe size and slope were determined by designing a system which allows for a freeboard below the street flow line while minimizing excavation depth and pipe size. Anentrance loss coefficient of 0.2 and Manning's roughness coefficient of 0,015 were used to describe the catch basin and CIPP friction losses. A short description of the storm drain analysis computer program, including input and output parameters and program logic. is included in this report as Appendix "E". - 5 - <6 I I I I I I I I I I I I I I I I I I I T,T,24134 311D,U, T.T, 24132 214 D.U. T.T.24133 693 D.U. T.T.24135 325 D.U, Phase 1 Boundary "" T.T.24131 440 D.U. T.T. 24136 400 D,U. T.T.24137 146 D.U. o Off-Site Storm Drain o Storm Drain Pipe Alignment G Direction of Flow ~ Pipe Indentification rnk-- T.T.24130 324 D.U. 1200' PALOMA DEL SOL. WEST Tract 24136-1 Storm Drain Schematic - C'OO "Jt>berf"Beizt, 'W"Jiliam "RI>st Ql~..,.. ~ JN25538 FEBAUARY1991 <\ 10 AND 100 YEAR HYDROLOGY (RATIONAL METHOD) - o ~~ ::l- 08 ~~ ;;:~ ~~ -' !'" o G'l ><: \0 1 I 1 1 1 ---------------------------------------------------------------------------- I **************************************************************************** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL (c) Copyright 1982-89 Advanced Engineering Software (aes) Ver. 5.4A Release Date:12/29/89 Serial # 4280 Analysis prepared by: Robert Bein, William Frost & Associates, 28765 Single Oak Drive, suite 250 Temecu1a, CA 92390 (714) 676-8042 Inc. FILE NAME: B:M36100.DAT TIME/DATE OF STUDY: 13:45 2/20/1991 I I i I 1 1 1 USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT(YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS(DEClMAL) TO USE 10-YEAR STORM 10-MINUTE INTENSITY(INCH/HOUR) = 10-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) = 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 100-YEAR STORM 60-MlNUTE INTENSITY(INCH/HOUR) SLOPE OF 10-YEAR INTENSITY-DURATION CURVE = SLOPE OF 100-YEAR INTENSITY-DURATION CURVE = COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 1-HOUR INTENSITY(INCH/HOUR) = 1.4000 SLOPE OF INTENSITY DURATION CURVE = .5271 FOR FRICTION 2.360 .880 = 3.600 = 1. 400 .5505732 .5271139 SLOPE = .90 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED NOTE: ONLY PEAK CONFLUENCE VALUES CONSIDERED ******************************************************************,********** I-_:~~_:~~:~~~_:~~~_~~~~___~~~::~_:~_~~~~___~~~:~~_:~_:~~~_:___~__~___[:J___ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1156.00 ELEVATION DIFFERENCE = 22.00 TC = .359*[( 1000.00**3)/( 22.00)]**.2 = 12.214 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.240 SOIL CLASSIFICATION IS "C" , CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8508 SUBAREA RUNOFF(CFS) = 13.23 TOTAL AREA(ACRES) = 4.80 TOTAL RUNOFF(CFS) = 13.23 1**************************************************************************** FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 I 1 1 I 1 \\ 1____________________________________________________________________________ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< I==;~;~~=~;~;=~;=~;~~~=:==;============================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: I TIME OF CONCENTRATION(MIN.) = 12.21 i RAINFALL INTENSITY (INCH/HR) = 3.24 TOTAL STREAM AREA(ACRES) = 4.80 I PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.23 ****************************************.*************************~********* I FLOW PROCESS FROM NODE 608.20 TO NODE 608.00 IS CODE = 2 F-Z ------------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< I=========~~~~~:~:~;~~~:~~~~~:~~;~;;==================================== TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 1 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1164.00 DOWNSTREAM ELEVATION = 1156.00 I ELEVATION DIFFERENCE = 8.00 TC = .359*[( 900.00**3)/( 8.00)]*..2 = 14.037 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.011 SOIL CLASSIFICATION IS "c" I' CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8477 SUBAREA RUNOFF(CFS) = 14.29 TOTAL AREA(ACRES) = 5.60 TOTAL RUNOFF(CFS) = 14.29 11.*...**..**..**.*****..******..***...***********.*****************~******.** FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 I--~~~~~~;~~~;~;;-~;~;;;;~;;;-~;;;~-;~;-~~;;~~;;~;~~~~~--------------------- , ==================================================================~========= I I TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 14.04 RAINFALL INTENSITY(INCH/HR) = 3.01 TOTAL STREAM AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.29 1****************..*.*******************************************.************ FLOW PROCESS FROM NODE 606.20 TO NODE 606.10 IS CODE = 2 F- 2.1.5 1_-----------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 650.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1168.00 ELEVATION DIFFERENCE = 10.00 TC = .359*[( 650.00**3)/( 10.00)]**.2 = 11.043 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.417 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8530 \7.- I I ' **************************************************************************** , FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 1---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 1============================================================================ TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MIN.) = 11.04 RAINFALL INTENSITY(INCH/HR) = 3.42 TOTAL STREAM AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = SUBAREA RUNOFF(CFS) = TOTAL AREA (ACRES) = 5.54 1.90 TOTAL RUNOFF(CFS) = 5.54 I I I I 1 I pi ^ 'iT , G ) i.'1 5.54 {' RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. fL (.2"> ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 28.75 30.92 31.47 TABLE ** TIME (MIN.) 11. 04 12.21 14.04 11. ') INTENSITY (INCH/HOUR) 3.417 3.240 3.011 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE AS FOLLOWS: = 31.47 J Tc(MIN.) = 12.30 / 14.04 J 1- ******************************************************************~". ********* FLOW PROCESS FROM NODE 606.10 TO NODE 606.00 IS CODE = 6 ,p- 3.5 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1============================================================================ UPSTREAM ELEVATION = 1168.85 DOWNSTREAM ELEVATION = 1135.25 - STREET LENGTH(FEET) = 1300.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSS FALL (DECIMAL) = .064 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 18.00 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = ***STREET FLOWING FULL*** STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 20.00 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 2.42 STREETFLOW TRAVELTIME(MIN) = 4.51 TC(MIN) = 18.55 36.07 4.80 \~ r---- I I I 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.599 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8410 SUBAREA AREA(ACRES) = 4.20 SUBAREA RUNOFF(CFS) = 9.18 SUMMED AREA(ACRES) = 16.50 TOTAL RUNOFF(CFS) = 40.65 END OF SUBAREA STREETFLOW HYDRAULICS: ' DEPTH (FEET) = .50 HALFSTREET FLOODWIDTH(FEET) = 20.00 FLOW VELOCITY(FEETjSEC.) = 5.41 DEPTH*VELOCITY = 2.72 TorCl.l f/otv 10 edb. <t.i ; l. 1******************************************************************t********* FLOW PROCESS FROM NODE 609.00 TO NODE 609.00 IS CODE = 7 I----~-------------------------------------------------------------~,--------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: I TC(MIN) = 18.55 RAIN INTENSITY(INCHjHOUR) = 2.60 . TOTAL AREA (ACRES) = 13.80 TOTAL RUNOFF (CFS) = 34.00 Flci<..Jpd:.ed..lJP , '*' Irk", \>"1 ~.'Il-" \,'f, ,,(.0 ~'5/)., ), "v. c.b by'Ce" J 1 Z. **************************************************************************** , FLOW PROCESS FROM NODE 609.50 TO NODE 354.00 IS CODE = 3 I--~~~~~~~~;~;;-;~;;;~;-;~~;~;~~;-;~;~-~~~~;~~~~~~--------------~--------- ,. >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW) <<<<< : ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I DEPTH OF FLOW IN 30.0 INCH PIPE IS 22.3 INCHES PIPEFLOW VELOCITY(FEETjSEC.) = 8.7 UPSTREAM NODE ELEVATION = 1137.00 DOWNSTREAM NODE ELEVATION = 1133.00 FLOWLENGTH(FEET) = 320.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER (INCH) = 30.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 34.00 TRAVEL TIME(MIN.) = .61 TC(MIN.) = 19.16 1 1**************************************************************************** FLOW PROCESS FROM NODE 354.00 TO NODE 354.00 IS CODE = 1 ---------------------------------------------------------------------------- I I I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ' ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 19.16 RAINFALL INTENSITY(INCHjHR) = 2.56 TOTAL STREAM AREA(ACRES) = 13.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 34.00 **************************************************************************** I FLOW PROCESS FROM NODE 354.00 TO NODE 354.00 IS CODE = 7 ------------------------------------------------------------------~--------- ^ >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< I==~~~;:~;~~~;~~~=~~~~~~=~~=~~=;~~~;~~============================~~~~~== TC(MIN) = 30.60 RAIN INTENSITY(INCHjHOUR) = 2.00 ' rl~ I TOTAL AREA(ACRES) = 653.50 TOTAL RUNOFF(CFS) = 1133.50 ~ **************************************************************************** I \~ I I I I I I I I FLOW PROCESS FROM NODE 354.00 TO NODE 354.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 30.60 RAINFALL INTENSITY(INCH/HR) = 2.00 TOTAL STREAM AREA(ACRES) = 653.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1133.50 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 743. 86;~ 1160.07 TABLE ** TIME (MIN.) '19.16 30.60 INTENSITY ( INCH/HOUR) 2.555 1. 997 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 1160.07 667.30 AS FOLLOWS: TC(MIN.) = 30.60 1**************************************************************************** FLOW PROCESS FROM NODE 354.00 TO NODE 352.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< I I I I ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 132.0 INCH PIPE IS 97.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.4 UPSTREAM NODE ELEVATION = 1133.00 DOWNSTREAM NODE ELEVATION = 1130.00 FLOWLENGTH(FEET) = 550.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 132.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 1160.07 TRAVEL TIME(MIN.) = .59 TC(MIN.) = 31.19 I I , , **************************************************************************** I', FLOW PROCESS FROM NODE 352.00 TO NODE 352.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< **************************************************************************** I FLOW PROCESS FROM NODE 352.00 TO NODE 352.00 IS CODE = 1 . -------------------------------------------------------------~---~---------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< 1============================================================================ TOTAL NUMBER OF STREAMS = 2 - CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 31.19 RAINFALL INTENSITY(INCH/HR) = 1.98 TOTAL STREAM AREA(ACRES) = 667.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1160.07 ============================================================================ 1 \~ I I USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 13.70 RAIN INTENSITY(INCH/HOUR) = 3.05 TOTAL AREA(ACRES) = 3.90 TOTAL RUNOFF(CFS) = 10.20 Add.i-hOf\ of .+:'10"" o.t Me. 632.. I I 1 I 1 I **************************************************************************** 1 FLOW PROCESS FROM NODE 352.00 TO NODE 352.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ==================================================================~========= TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 13.70 RAINFALL INTENSITY(INCH/HR) = 3.05 TOTAL STREAM AREA(ACRES) = 3.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.20 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. * * PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 519.67 1166.68 TABLE ** TIME (MIN.) 13.70 31.19 INTENSITY (INCH/HOUR) 3.050 1. 976 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 1166.68 671. 20 AS FOLLOWS: Tc(MIN.) = 31.19 **************************************************************************** 1 FLOW PROCESS FROM NODE 352.00 TO NODE 612.00 IS CODE = 3 ------------------------------------------------------------------~--------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ===================================================================-=------- DEPTH OF FLOW IN 102.0 INCH PIPE IS 74.8 INCHES , , PIPEFLOW VELOCITY(FEET/SEC.) = 26.2 UPSTREAM NODE ELEVATION = 1130.00 DOWNSTREAM NODE ELEVATION = 1120.00 FLOWLENGTH(FEET) = 450.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 102.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 1166.68 TRAVEL TIME(MIN.) = .29 TC(MIN.) = 31.48 I 1 1 1******************************************************************~********* FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 7 I', ------------------------------------------------------------------~--------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ------------------------------------------------------------------~--------- ---------------------------------------------------------------------------- I USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 18.55 RAIN INTENSITY(INCH/HOUR) = 2.60 TOTAL AREA(ACRES) = 1.35 TOTAL RUNOFF(CFS) = Flcwby from 3.30 C.rb, 'lt1.. 1**************************************************************************** FLOW PROCESS FROM NODE 606.00 TO NODE 610.00 IS CODE = 6 F-3 \(p 1 1------------------------------------------------------------------~-~~~----- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< I==~~~~;;~=~~~~~~~~=:===~~;~~~~===~~~~~;;~=~~~~~~~~~=:===~~;~~~~========= STREET LENGTH (FEET) = 850.00 CURB HEIGTH(INCHES) = 6. I STREET HALFWIDTH(FEET) = 20.00 I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = .98 STREETFLOW TRAVELTIME(MIN) = 5.79 TC(MIN) = 5.59 2.44 24.34 11-\ )'1- !;Aor <,<'<' " d'" (', " v"'" 1..<\x ,j 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.252 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8338 SUBAREA AREA (ACRES) = 2 . 4 0 j SUBAREA RUNOFF (CFS) = SUMMED AREA(ACRES) = 3.75 J TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 18.27 FLOW VELOCITY(FEETjSEC.) = 2.64 DEPTH*VELOCITY = 1.16 4.51 J " 7.81 PM up bv , 'It I C.13, 3 j 1******************************************************************~********* FLOW PROCESS FROM NODE 610.00 TO NODE 611.00 IS CODE = 3 1______------------------------------------------------------------~--------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< 1==~~~~~~~~=~~~~=;~~~~~;7~~~~)=~~~;~~~~~=~~=~;~~~~========================= DEPTH OF FLOW IN 18.0 INCH PIPE IS 8.2 INCHES , PIPEFLOW VELOCITY(FEETjSEC.) = 10.0 UPSTREAM NODE ELEVATION = 1131.00 DOWNSTREAM NODE ELEVATION = 1119.00 FLOWLENGTH(FEET) = 350.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 7.81 TRAVEL TIME(MIN.) = .58 TC(MIN.) = 24.93 1**************************************************************************** FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 1 I--~~~~~~;;~~~~;;-~~~;;;~~;~;-;;;;~-;~;-;~~;~~;~;;~~~~~-----------~--------- I I 1 ============================================================================ I I 1 TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 24.93 RAINFALL INTENSITY(INCHjHR) = 2.22 TOTAL STREAM AREA(ACRES) = 3.75 PEAK FLOW RATE(CFS) AT CONFLUENCE = 7.81 \'1 I **************************************************************************** l FLOW PROCESS FROM NODE 606.00 TO NODE 606.00 IS CODE = 7 -----------------------------------------------------------------+--------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< Ir=~~~~:~;~~~;~~~=~~~~~~=~~=~~=;~~~;~~===================================== TC(MIN) = 18.55 RAIN INTENSITY(INCHjHOUR) = 2.60 FJ~by t~~ 1 TOTAL AREA (ACRES) = 1. 3~ TOTAL RUNOFF (CFS) = 3 .~O C,r-,. 'It'2., **************************************************************************** I- FLOW PROCESS FROM NODE 606.00 TO NODE 611.00 IS CODE = 6 F-~ --------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1==================================================================~,========= UPSTREAM ELEVATION = 1138.00 DOWNSTREAM ELEVATION = 1122.00 STREET LENGTH (FEET) = 1050.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I I I I I 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.247 SOIL CLASSIFICATION IS "C" I CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8337 SUBAREA AREA(ACRES) = 2. 70jl'~S SUBAREA RUNOFF (CFS) = SUMMED AREA(ACRES) = 4.05 TOTAL RUNOFF(CFS) = I END OF SUBAREA STREETFLOW HYDRAULICS: "DEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 17.11 FLOW VELOCITY(FEETjSEC.) = 3.20 DEPTH*VELOCITY = 1.35 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 1.13 STREETFLOW TRAVELTIME(MIN) = 5.91 TC(MIN) = 5.87 2.96 24.46 5.06. ,,; 8.36 PickJ. lJp by CB, ;tit 1 I 1 1************************.*************************************************** FLOW PROCESS FROM NODE 611.00 TO NODE 612.00 IS CODE = 3 I--:::::~~~~~~;-~~~;;~;-~~~;~~~~;-~;~~-~~;~~~~~~~------------------------ >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< I==~~~~~~~~:~~~:~~~~~~~~~~~;b:~:~~~~~~~~~~:~~:~~~========================= PIPEFLOW VELOCITY(FEETjSEC.) = 10.1 UPSTREAM NODE ELEVATION = 1120.00 DOWNSTREAM NODE ELEVATION = 1119.00 FLOWLENGTH(FEET) = 30.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER (INCH) = 18.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA (CFS) = 8.36 TRAVEL TIME(MIN.) = .05 TC(MIN.) = 24.51 1 \~ I **************************************************************************** I FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 1 -----------------------------------------------------------------~---------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 24.51 RAINFALL INTENSITY(INCH/HR) = 2.24 TOTAL STREAM AREA(ACRES) = 4.05 PEAK FLOW RATE(CFS) AT CONFLUENCE = I I 1 1 I I 8.36 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 16.03 16.09 TABLE ** TIME (MIN. ) 24.51 24.93 INTENSITY ( INCH/HOUR) 2.244 2.224 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 16.09 7.80 AS FOLLOWS: Tc(MIN.) = 24.93 ******************************************************************'********** 1 FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 3 - -----------------------------------------------------------------~---------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< I==;;;;;~~;~;~;~;;:~;~~~:~~=~;~;;~~;::~;~;~~~~~~;~~~~=~~~~:::::=========== PIPEFLOW VELOCITY(FEET/SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1120.00 DOWNSTREAM NODE ELEVATION = 1119.00 FLOWLENGTH(FEET) = 40.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER (INCH) = 21.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 16.09 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 24.99 I I 1 I * ** * * * * * * * ** * ***** * ** * * * * * * * * * * * ****** ****** * * ****** * * * * * * * * * * * * * *:* * * * * * * * * * FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 1 1______---------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ I 1 TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 24.99 RAINFALL INTENSITY(INCH/HR) = 2.22 TOTAL STREAM AREA(ACRES) = 7.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 16.09 I **************************************************************************** FLOW PROCESS FROM NODE 606.20 TO NODE 606.10 IS CODE = 2 (-21,1- I \C!" I 1 ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 I INITIAL SUBAREA FLOW-LENGTH = 750.00 UPSTREAM ELEVATION = 1175.10 DOWNSTREAM ELEVATION = 1167.30 ELEVATION DIFFERENCE = 7.80 1 TC = .359*[( 750.00**3)/( 7.80)]**.2 = 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" 1 CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) = 2.70 TOTAL AREA(ACRES) = 1.00 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< (-'2./,1- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 12.646 3.181 .8501 TOTAL RUNOFF(CFS) = 2.70 1**************************************************************************** FLOW PROCESS FRO~..NODE 606.10 TO NODE 352.00 IS CODE = 6 ,C - 3,7- I-------------------~----------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I I 1 I 1 I UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1168.00 1200.00 = 38.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1135.30 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 36.00 INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 4.70 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 11.20 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.96 PRODUCT OF DEPTH&VELOCITY = 1.27 STREETFLOW TRAVELTIME(MIN) = 5.06 TC(MIN) = 17.70 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.664 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8422 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = 4.04 SUMMED AREA(ACRES) = 2.80 TOTAL RUNOFF(CFS) = 6,74 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 13.48 FLOW VELOCITY(FEET/SEC.) = 4.05 DEPTH*VELOCITY = 1.46 1******************************************************************~********* FLOW PROCESS FROM NODE 611.60 TO NODE 611.50 IS CODE = 6 F-~5 ---------------------------------------------------------------------------- 1 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ' ============================================================================ UPSTREAM ELEVATION = 1135.00 DOWNSTREAM ELEVATION = 1120.00 STREET LENGTH (FEET) = 1000.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 38.00 I I DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK = 36.00 v:> I I 1 I I 1 1 INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 8.61 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 16.90 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.38 PRODUCT OF DEPTH&VELOCITY = 1.41 STREETFLOW TRAVELTIME(MIN) = 4.93 TC(MIN) = 22.63 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.340 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8358 SUBAREA AREA(ACRES) = 1.90 SUBAREA RUNOFF(CFS) = 3.72 SUMMED AREA(ACRES) = 4.70 TOTAL RUNOFF(CFS) = 10.46 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 18.04 FLOW VELOCITY(FEET/SEC.) = 3.62 DEPTH*VELOCITY = 1.58 fJ00 ~o c,l?,. 0'1 PID PieD per r~t 2.4135 1**************************************************************************** FLOW PROCESS FROM NODE 611.50 TO NODE 612.00 IS CODE = 3 ---------------------------------------------------------------------------- 1 1 I 1 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.5 UPSTREAM NODE ELEVATION = 1120.00 DOWNSTREAM NODE ELEVATION = 1119.00 FLOWLENGTH(FEET) = 40.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER (INCH) = 18.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 10.46 TRAVEL TIME(MIN.) = .07 TC(MIN.) = 22.70 1******************************************************************~********* FLOW PROCESS FROM NODE 612.00 TO NODE 612.DO IS CODE = 1 ------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ' 1==================================================================h========= TOTAL NUMBER OF STREAMS = 3 . 1 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 22.70 RAINFALL INTENSITY(INCH/HR) = 2.34 TOTAL STREAM AREA(ACRES) = 4.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 10.46 ******************************************************************~********* 1 FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 7 ' ------------------------------------------------------------------~--------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< 1==~;;;:;;;;~;~;~=~~~~;;=~;=~;=;~~~;;7===================================== TC(MIN) = 31.19 RAIN INTENSITY(INCH/HOUR) = 1.98 1 TOTAL AREA(ACRES) = 671.20 TOTAL RUNOFF(CFS) = 1166.68 MOJhline tlocu ot lJocte 612. 7Jv I 1**************************************************************************** FLOW PROCESS FROM NODE 612.00 TO NODE 612.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION{MIN.) = 31.19 RAINFALL INTENSITY{INCH/HR) = 1.98 TOTAL STREAM AREA{ACRES) = 671.20 PEAK FLOW RATE{CFS) AT CONFLUENCE = I 1 1 1 I I 1166.68 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 874.34 960.83 1189.84 TABLE ** TIME (MIN.) 22.70 24.99 31.19 INTENSITY (INCH/HOUR) 2.337 2.221 1.977 COMPUTED CONFLUENCE PEAK FLOW RATE{CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 1189.84 683.70 AS FOLLOWS: Tc{MIN.) = 31.19 1**************************************************************************** FLOW PROCESS FROM NODE 612.00 TO NODE 614.00 IS CODE = 3 ---------------------------------------------------------------------------- I 1 I 1 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ==================================================================;========= DEPTH OF FLOW IN 87.0 INCH PIPE IS 67.5 INCHES PIPEFLOW VELOCITY{FEET/SEC.) = 34.6 UPSTREAM NODE ELEVATION = 1119.00 DOWNSTREAM NODE ELEVATION = 1100.00 FLOWLENGTH{FEET) = 400.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 87.00 NUMBER OF PIPES = 1, PIPEFLOW THRU SUBAREA{CFS) = 1189.84 TRAVEL TIME{MIN.) = .19 TC{MIN.) = 31.38 1**************************************************************************** FLOW PROCESS FROM NODE 614.00 TO NODE 614.00 IS CODE = 1 ------------------------------------------------------------------~--------- I I 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< 1============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION{MIN.) = 31.38 RAINFALL INTENSITY{INCH/HR) = 1.97 TOTAL STREAM AREA(ACRES) = 683.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1189.84 **************************************************************************** ~ I FLOW PROCESS FROM NODE 548.00 TO NODE 548.00 IS CODE = 7 ---------------------------------------------------------------------------- I >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ============================================================================ USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 13.40 RAIN INTENSITY(INCHjHOUR) = 3.09 TOTAL AREA(ACRES) = 30.30 TOTAL RUNOFF(CFS) = 79.80 A:!dii'Of\ of olf\>Je. +Itw o:t IJoJ.e. S'tB 1 1**************************************************************************** FLOW PROCESS FROM NODE 548.00 TO NODE 548.00 IS CODE = 1 --------------------------------------------------------------------~------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 1 1 1 I I 1 1 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT TIME OF CONCENTRATION(MIN.) = 13.40 RAINFALL INTENSITY(INCHjHR) = 3.09 TOTAL STREAM AREA(ACRES) = 30.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = STREAM 2 ARE: 79.80 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 587.85 1240.80 TABLE ** TIME (MIN.) 13.40 31.38 INTENSITY (INCHjHOUR) 3.085 1: 970 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 1240.80 714.00 AS FOLLOWS: Tc(MIN.) = 31. 38 1 ******************************************************************,********** FLOW PROCESS FROM NODE 548.00 TO NODE 614.00 IS CODE = 3 . ENO l'tl36-] -----------------------------------------------------------~---------------- I 1 1 I==:::::~~~~~:~~;~~~;~;:~~~~~~:~~~~~~~~:~~~:~~~~~~~~=~~~~~:::::=========== DEPTH OF FLOW IN 114.0 INCH PIPE IS 85.1 INCHES PIPEFLOW VELOCITY(FEETjSEC.) = 21.9 UPSTREAM NODE ELEVATION = 100.50 DOWNSTREAM NODE ELEVATION = 100.00 FLOWLENGTH(FEET) = 50.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 114.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 1240.80 TRAVEL TIME(MIN.) = .04 TC(MIN.) = 31.42 1 **************************************************************************** I FLOW PROCESS FROM NODE 606.20 TO NODE 615.00 IS CODE = 2 BEGHJ 2.LtI2:6 ------------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< F -Ib 1 ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)j(ELEVATION CHANGE)]**.2 1 2.;~ I 1 1 1 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1164.00 ELEVATION DIFFERENCE = 14.00 TC = .359*[( 900.00**3)/( 14.00)]**.2 = 12.550 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.194 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8502 SUBAREA RUNOFF(CFS) = 13.85 TOTAL AREA(ACRES) = 5.10 TOTAL RUNOFF(CFS) = 13.85 1**************************************************************************** FLOW PROCESS FROM NODE 618.10 TO NODE 618.00 IS CODE = 8 F-lb,L ---------------------------------------------------------------------------- 1 I 1==~~~~~~~~~;~~~~;;~~~~;;;~~;;~7~;~~/~~~;):~~;~~;~=============~========= SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 5.10 TOTAL AREA(ACRES) = 10.20 TC(MIN) = 12.55 COEFFICIENT = .8502 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 13.85 27.70 **************************************************************************** 1 FLOW PROCESS FROM NODE 615.00 TO NODE 615.50 IS CODE = 6 F -/6,5 -------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1============================================================================ UPSTREAM ELEVATION = 1164.00 DOWNSTREAM ELEVATION = 1120.50 STREET LENGTH(FEET) = 750.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I 1 I I 1 1 I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 2.80 STREETFLOW TRAVELTIME(MIN) = 1.79 TC(MIN) = 31. 82 6.96 14.35 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.976 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8472 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 13.50 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 17.11 FLOW VELOCITY(FEET/SEC.) = 6.90 DEPTH*VELOCITY = 2.91 8.32 36.02 T dtal {/or,.) fo c. 8, If, C) I cz. I C ~ 1**************************************************************************** 1 FLOW PROCESS FROM NODE 622.50 TO NODE 622.50 IS CODE = 7 pAc. 1_____________________________________________________----------------------- >>>>>USER, SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< 1============================================================================ USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 14.35 RAIN INTENSITY(INCH/HOUR) = 2.98 TOTAL AREA(ACRES) = 13.12 TOTAL RUNOFF(CFS) = 35.00 Ploked. IJp by ()' .. C,'D. CJ,c.z.,C) **************************************************************************** I FLOW PROCESS FROM NODE 622.50 TO NODE 617.60 IS CODE = 3 ----------------------------------------------------------------~----------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< 1 >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ DEPTH OF FLOW IN 24.0 INCH PIPE IS 16.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.6 UPSTREAM NODE ELEVATION = 1140.00 DOWNSTREAM NODE ELEVATION = 1117.00 FLOWLENGTH(FEET) ,;::410.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER (INCH) = 24.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 35.00 TRAVEL TIME(MIN.) = .44 TC(MIN.) = 14.79 1 1 1 1 1**************************************************************************** FLOW PROCESS FROM NODE 617.60 TO NODE 617.60 IS CODE = 1 I--:::::~;~~~;~;;-~;~;;;;~;;;-~;;;~-;~;-~~;;~;;;~;~~~~~--------------------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1 I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 14.79 RAINFALL INTENSITY(INCH/HR) = 2.93 TOTAL STREAM AREA(ACRES) = 13.12 PEAK FLOW RATE(CFS) AT CONFLUENCE = 35.00 I **************************************************************************** FLOW PROCESS FROM NODE 617.30 TO NODE 617.40 IS CODE = 2 F-/7,5 I:::::::~~~~~~~:~~~~~~:~~~~~~~:~~~~~~:~~~~~~~::::::::::::::::::::::::::::: ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1152.00 DOWNSTREAM ELEVATION = 1122.00 ELEVATION DIFFERENCE = 30.00 TC = .359*[( 900.00**3)/( 30.00)]**.2 = 10.776 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.461 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8535 SUBAREA RUNOFF(CFS) = 12.41 TOTAL AREA(ACRES) = 4.20 TOTAL RUNOFF(CFS) = 12.41 FLOW PROCESS FROM NODE 617.60 TO NODE 617.60 IS CODE = ,/ ~'J 1 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< II=;;;;~=~;=;~;=~~==~~~~=~~~~=;~;;=~;==~~~:=~~~~;;========================== PIPEFLOW VELOCITY(FEETjSEC.) = 7.6 I UPSTREAM NODE ELEVATION = 1119.00 DOWNSTREAM NODE ELEVATION = 1118.00 FLOWLENGTH(FEET) = 60.00 MANNING'S N = .015 1 ESTIMATED PIPE DIAMETER (INCH) = 21.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA (CFS) = 12.41 TRAVEL TIME(MIN.) = .13 TC(MIN.) = 10.91 1 I*****~********************************************************************** FLOW PROCESS FROM NODE 617.60 TO NODE 617.60 IS CODE = 1 I--~~~~~~~;~~;~;~-~;~~;~;~~;;-;;;~;;-;~;-~~;;~~~;~~~~~~~--------------------- >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ 1 1 I I I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 10.91 RAINFALL INTENSITY(INCHjHR) = 3.44 TOTAL STREAM AREA(ACRES) = ,4.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 12.41 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 38.22 45.57 TABLE ** TIME (MIN.) 10.91 14.79 INTENSITY (INCHjHOUR) 3.439 2.929 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA(ACRES) = ESTIMATES ARE = 45.57 17.32 AS FOLLOWS: Tc (MIN.) = 14.79 1******************************************************************~********* FLOW PROCESS FROM NODE 617.60 TO NODE 617.00 IS CODE = 3 I I I 1 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ' ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 24.0 INCH PIPE IS 18.9 INCHES PIPEFLOW VELOCITY(FEETjSEC.) = 17.2 UPSTREAM NODE ELEVATION = 1119.00 DOWNSTREAM NODE ELEVATION = 1108.00 FLOWLENGTH(FEET) = 170.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 45.57 TRAVEL TIME(MIN.) = .17 TC(MIN.) = 14.95 1 * ** * ****.** * * * **** * * * * * * * *** ******** ******** ******* * * * * * *** * * * * * * * *,* * * * * * * * * * FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = 1 I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< /JP I ' ============================================================================ I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT TIME OF CONCENTRATION(MIN.) = 14.95 RAINFALL INTENSITY(INCH/HR) = 2.91 TOTAL STREAM AREA(ACRES) = 17.32 PEAK FLOW RATE(CFS) AT CONFLUENCE = STREAM 1 ARE: 45.57 1******************************************************************~********* FLOW PROCESS FROM NODE 617.70 TO NODE 617.60 IS CODE = 2 P-/t- ---------------------------------------------------------------------------- I I I I I >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM :, DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 800.00 UPSTREAM ELEVATION = 1152.00 DOWNSTREAM ELEVATION = 1123.00 ELEVATION DIFFERENCE = 29.00 TC = .359*[( 800.00**3)/( 29.00)]**.2 = 10.109 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.579 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8548 SUBAREA RUNOFF(CFS) = 10.71 TOTAL AREA(ACRES) = 3.50 TOTAL RUNOFF(CFS) = 10.71 1**************************************************************************** FLOW PROCESS FROM NODE 622.50 TO NODE 617.00 IS CODE = 6 F-~,~ ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< . 1==================================================================c========= UPSTREAM ELEVATION = 1140.00 DOWNSTREAM ELEVATION = 1108.00 STREET LENGTH(FEET) = 600.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I I I I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 2.21 STREETFLOW TRAVELTIME(MIN) = 1.73 TC(MIN) = 11.44 5.77 11.84 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.293 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8861 SUBAREA AREA (ACRES) = .50 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 4.00 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 FLOW VELOCITY(FEET/SEC.) = 6.14 DEPTH*VELOCITY = 2.35 1. 46 12.17 z.'\ I 1**************************************************************************** FLOW PROCESS FROM NODE 617.40 TO NODE 617.00 IS CODE = 3 ------------------------------------------------------------------~--------- I >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< , ============================================================================ DEPTH OF FLOW IN 21.0 INCH PIPE IS 13.2 INCHES I~ PIPEFLOW VELOCITY(FEET/SEC.) = 7.6 UPSTREAM NODE ELEVATION = 1106.00 DOWNSTREAM NODE ELEVATION = 1105.00 .1 FLOWLENGTH(FEET) = 60.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 12.17 - TRAVEL TIME(MIN.) = .13 TC(MIN.) = 11.97 I I I I I I I ******************************************************************~********* I' FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = 1 -----------------------~----~-------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ================================================~=================~========= TOTAL NUMBER OF STREAMS = 2 ' CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 11.97 RAINFALL INTENSITY(INCH/HR) = 3.27 TOTAL STREAM AREA(ACRES) = 4.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 12.17 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 48.65 56.39 TABLE ** TIME (MIN~ ) 11.97 14.95 INTENSITY (INCH/HOUR) 3.274 2.912 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 56.39 21. 32 AS FOLLOWS: Tc(MIN.) = 14.95 ******************************************************************~********* II FLOW PROCESS FROM NODE 622.50 TO NODE 622.50 IS CODE = 7 , --~~~~~~~;;-~;;~~;~;~-;;~;~~~;-~;;~~;~~;-~;-;~~;;;;;;----------;--------- 1==~~~;:~;~~~;~~;=;~~~~~=~~=~~=;~~~;~7===========================~========= TC(MIN) = 14.35 RAIN INTENSITY(INCH/HOUR) = 2.98 F~by iron> TOTAL AREA(ACRES) = .38 TOTAL RUNOFF(CFS) = 1.00 ~'~ C.p, cz. I , **************************************************************************** I FLOW PROCESS FROM NODE 622.50 TO NODE 622.50 IS CODE = 8 f-6 ------------------------------------------------------------------~--------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ I ~ 11 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.976 SOIL CLASSIFICATION,IS "C" I UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7492 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 4.46 TOTAL AREA(ACRES) = 2.38 TOTAL RUNOFF(CFS) = 5.46 I TC(MIN) = 14.35 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.560 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8403 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 4.98 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .44 HALFSTREET FLOODWIDTH(FEET) = 18.27 FLOW VELOCITY(FEETjSEC.) = 3.74 DEPTH*VELOCITY = 1.65 1**************************************************************************** I--~~~~~;;~~;~;;~~;~;;;~~;~;~~~;;~~;~;~~~~;~~;~~;~~~~~~~~-:---:--~--------- -**************************************************************************** I FLOW PROCESS FROM NODE 622.50 TO NODE 622.00 IS CODE = 6 , p- 6.1 -----------------------------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< Ir=;;;;;;~=;~~~;~~;=:===~~~;~~~===;~;;;;;;~=;~~~;~~;=:===~~;;~~d========= STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. I STREET HALFWIDTH(FEET) = 20.00 I I I I I 1 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 17.11 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 1.34 STREETFLOW TRAVELTIME(MIN) = 4.74 TC(MIN) = 8.26 3.17 19.09 5.59 11. 05 ============================================================================ , I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 19.09 RAINFALL INTENSITY(INCHjHR) = 2.56 TOTAL STREAM AREA(ACRES) = 4.98 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.05 1 ARE: 11**************************************************************************** FLOW PROCESS FROM NODE 620.50 TO NODE 622.00 IS CODE = 2 F'~~ 1_--------------------------------------------------------------------------- . >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I ASSUMED INITIAL SUBAREA UNIFORM -z,o... I I I I I I I I I I , **************************************************************************** - FLOW PROCESS FROM NODE 622.00 TO NODE 622.00 IS CODE = 1 1------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE,~IOUS CONFLUENCED STREAM VALUES<<<<< 1==================================================================~========= TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 11.86 RAINFALL INTENSITY(INCH/HR) = 3.29 TOTAL STREAM AREA(ACRES) = 1.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 650.00 UPSTREAM ELEVATION = 1136.00 DOWNSTREAM ELEVATION = 1129.00 ELEVATION DIFFERENCE = 7.00 TC = .359*[( 650.00**3)/( 7.00)]**.2 = 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) = 4.76 TOTAL AREA(ACRES) = 1.70 11.859 3.291 .8515 TOTAL RUNOFF(CFS) = 4.76 4.76 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 11.63 14.76 TABLE ** TIME (MIN.) 11. 86 19.09 INTENSITY ( INCH/HOUR) 3.291 2.560 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 14.76 Tc(MIN.) = TOTAL AREA(ACRES) = 6.68 1**************************************************************************** I--:::::~;~~~;~;;~~;~;;;;~;~;:~;;;~~;~;~~~~;~~;;~;::::~~~~-:---=------------ 19.09 ------------------------------------------------------------------~--------- ---------------------------------------------------------------------------- t I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 19.09 RAINFALL INTENSITY(INCH/HR) = 2.56 TOTAL STREAM AREA(ACRES) = 6.68 PEAK FLOW RATE(CFS) AT CONFLUENCE = 14.76 1 ARE: I **************************************************************************** FLOW PROCESS FROM NODE 622.50 TO NODE 622.00 IS CODE = 2 'F-6.~ .-- ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ I ASSUMED INITIAL SUBAREA UNIFORM 1P I I I I 1 **************************************************************************** P -6.2.. DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1129.00 ELEVATION DIFFERENCE = 14.00 TC = .359*[( 850.00**3)/( 14.00)]**.2 = 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) = 6.37 TOTAL AREA(ACRES) = 2.30 12.127 3.252 .8510 TOTAL RUNOFF(CFS) = 6.37 I I 1 I 1 FLOW PROCESS FROM NODE 622.00 TO NODE 622.00 IS CODE = 1 1---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 1============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 12.13 RAINFALL INTENSITY(INCH/HR) = 3.25 TOTAL STREAM AREA(ACRES) = 2.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 6.37 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO ' CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 15.74 19.77 TABLE ** TIME (MIN.) 12.13 19.09 INTENSITY ( INCH/HOUR) 3.252 2.560 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: PEAK FLOW RATE(CFS) = 19.77 Tc(MIN.) = TOTAL AREA(ACRES) = 8.98 1******************************************************************~********* FLOW PROCESS FROM NODE 622.00 TO NODE 624.00 IS CODE = 6 P-r,3 1_-----------------------------------------------------------------~--------- . >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ' 19.09 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I I I UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1129.00 350.00 = 20.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1119.00 DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = 18.00 INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 20.81 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 ~ I I I 1 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.55 PRODUCT OF DEPTH&VELOCITY = 1.83 STREETFLOW TRAVELTIME(MIN) = 1.28 TC(MIN) = 20.37 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.474 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8386 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 2.07 SUMMED AREA(ACRES) = 9.98 TOTAL RUNOFF(CFS) = 21.85 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 FLOW VELOCITY(FEET/SEC.) = 4.78 DEPTH*VELOCITY = 1.92 1**************************************************************************** FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 I--~~~~~~;;~~;~~;-~;~;;;;~;;~-;~;;~-;~;-~~;;~~;;~;:::::--------------------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 20.37 RAINFALL INTENSITY(INCH/HR) = 2.47 TOTAL STREAM AREA(ACRES) = 9.98 PEAK FLOW RATE(CFS) AT CONFLUENCE = 21.85 1 ARE: 1*********************************************************************~ FLOW PROCESS FROM NODE 624.50 TO NODE 624.00 IS CODE = 2 F-B 1_---------------------------------------------------~-------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1131.00 DOWNSTREAM ELEVATION = 1119.00 ELEVATION DIFFERENCE = 12.00 TC = .359*[( 1000.00**3)/( 12.00)]**.2 = 13.788 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.039 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8481 SUBAREA RUNOFF(CFS) = 17.27 TOTAL AREA(ACRES) = 6.70'; TOTAL RUNOFF(CFS) = 1 I I I 17.27/ 11**************************************************************************** - FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 ------------------------------------------------------------------~--------- I I I I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 13.79 RAINFALL INTENSITY(INCH/HR) = 3.04 TOTAL STREAM AREA(ACRES) = 6.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 17.27 1JV I I I I RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 32.06 35.91 TABLE '** TIME (MIN.) 13.79 20.37 INTENSITY (INCH/HOUR) 3.039 2.474 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: iotcJ Flex...) fo C,I!:i, ;t 02. ; p;:, ~~~~LF:;A~~~~rs~ = 16:~891 Tc(MIN.) = 20.37 2.'.1- CF5 =?> 02- Ilt.Z cfS 9' 03 1******************************************************************~********* FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 I----------------------------~-------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ==================================================================~========= I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 20.37 RAINFALL INTENSITY(INCH/HR) = 2.47 TOTAL STREAM AREA(ACRES) = 16.68 PEAK FLOW RATE(CFS) AT CONFLUENCE = 35.91 1 ARE: 1 I I I 1**************************************************************************** FLOW PROCESS FROM NODE 620.50 TO NODE 620.00 IS CODE = 2 'P-1- I::~~~~~~~~~~~~:~~~~~~:~~~~~~~:~~~~~~:~~~~~~~::::::::::::::::::::::::::::: ASSUMED INITIAL SUBAREA UNIFORM C . DEVELOPMENT IS: UNDEVELOPED WITH FAIR COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1145.00 DOWNSTREAM ELEVATION = 1134.00 ELEVATION DIFFERENCE = 11.00 TC = .709*[( 1000.00**3)/( 11.00)]**.2 = 27.708 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.104 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7005 SUBAREA RUNOFF(CFS) = 4.72 TOTAL AREA(ACRES) = 3.20 TOTAL RUNOFF(CFS) = 4.72 1**************************************************************************** c FLOW PROCESS FROM NODE 620.00 TO NODE 622.00 IS CODE = 8 P-7,1 ---------------------------------------------------------------------------- I I I I >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.104 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8302 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = TOTAL AREA(ACRES) = 5.20 TOTAL RUNOFF(CFS) = TC(MIN) = 27.71 3.49 8.21 Pd:eJ. vp by c,().* 01 ,??J 1******************.**********.*...*.*******..******************************* t-:~~-:~~:~~~-:~~~-~~~~---~~~:~~-:~-~~~~---~~~:~~-:~-:~~~-:---:------------ >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< , >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< 1r=;~;~~;;~=;~;;=~~~;;;7~;~;)=~;~;;~~;~=;~=~;~~~~========================= DEPTH OF FLOW IN 18.0 INCH PIPE IS 10.1 INCHES I PIPEFLOW VELOCITY(FEET/SEC.) = 8.1 UPSTREAM NODE ELEVATION = 1126.00 DOWNSTREAM NODE ELEVATION = 1116.00 FLOWLENGTH(FEET) = 400.00 MANNING'S N = .015 I ESTIMATED PIPE DIAMETER(INCH) = 18.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 8.21 TRAVEL TIME(MIN.) = .82 TC(MIN.) = 28.53 1 I I I I I 1***.********....*******.*.************....*******..************************* FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 ' 1------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< I==;~;~~=;;;;;;=~;=~;~~~=:==;============================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 28.53 RAINFALL INTENSITY(INCH/HR) = 2.07 TOTAL STREAM AREA(ACRES) = 5.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.21 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 41. 77 38.27 TABLE ** TIME (MIN. ) 20.37 28.53 INTENSITY (INCH/HOUR) 2.474 2.071 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 41. 77 21.88 AS FOLLOWS: Tc(MIN.) = 20.37 1 I I 1*****..*******************.*************.**.*.********************~********* FLOW PROCESS FROM NODE 624.00 TO NODE 626.00 IS CODE = 3 ' I--~~~~~~~;;~;;-;~;;;~;-;~~;~;~;;-;;;~-;~;~;~~~~~~--------------~--------- >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< , I==~;;;;=~;=;~;=~;==;;~~=~;~;=;~;;=~;==~;~;=~;~;~;========================== PIPEFLOW VELOCITY(FEET/SEC.) = 18.5 UPSTREAM NODE ELEVATION = 1119.00 DOWNSTREAM NODE ELEVATION = 1085.00 FLOWLENGTH(FEET) = 430.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER (INCH) = 24.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 41.77 TRAVEL TIME(MIN.) = .39 TC(MIN.) = 20.76 1 ?j\ I 1**************************************************************************** FLOW PROCESS FROM NODE 622.50 TO NODE 626.00 IS CODE = 8 ~_~ 1---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I 1 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.450 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7232 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = 7.80 TOTAL AREA(ACRES) = 26.28 TOTAL RUNOFF(CFS) = 49.56 TC(MIN) = 20.76 . Pld(,~ Vp by tleU. .5<.l1>l(J It 0 Lt 1 * *** ********* * ****** * ****************************** *** **** * * **** * *'* * * * * * * ** * FLOW PROCESS FROM NODE 626.00 TO NODE 628.00 IS CODE = 3 1_--------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< , >>>>>USING COMPUT~R-ESTlMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ------------------~--------------------------------------------------------- I 1 I DEPTH OF FLOW IN 27.0 INCH PIPE IS 19.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 16.6 UPSTREAM NODE ELEVATION = 1085.00 DOWNSTREAM NODE ELEVATION = 1078.00 FLOWLENGTH(FEET) = 175.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 27.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 49.56 TRAVEL TIME(MIN.) = .18 TC(MIN.) = 20.93 1 1******************************************************************~********* FLOW PROCESS FROM NODE 628.00 TO NODE 628.00 IS CODE = 1 ---------------------------------------------------------------------------- I 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< . 1==================================================================~========= TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 20.93 RAINFALL INTENSITY(INCH/HR) = 2.44 TOTAL STREAM AREA(ACRES) = 26.28 PEAK FLOW RATE(CFS) AT CONFLUENCE = 49.56 I 1 I 1 **************************************************************************** I FLOW PROCESS FROM NODE 622.50 TO NODE 636.00 IS CODE = 2 P-IO,1 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< 1==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM ' TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1111.00 ELEVATION DIFFERENCE = 32.00 TC = .359*[( 850.00**3)/( 32.00)]**.2 = 10.279 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.548 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8545 SUBAREA RUNOFF(CFS) = 5.76 TOTAL AREA(ACRES) = 1.90 TOTAL RUNOFF(CFS) = 5.76 / 1-p ;--- I 1**************************************************************************** FLOW PROCESS FROM NODE 636.00 TO NODE 637.00 IS CODE = 6 F-ID 1 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = 1111.00 DOWNSTREAM ELEVATION = 1088.00 STREET LENGTH(FEET) = 970.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I 1 I 1 1 1 I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 17.11 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 1.76 STREETFLOW TRAVELTIME(MIN) = 3.87 TC(MIN) = 10.90 4.18 14.15 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.998 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8475 SUBAREA AREA(ACRES) = 4.00 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 5.90 TOTAL RUNOFF(CFS) = END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .46 HALFSTREET FLOODWIDTH(FEET) = 19.42 FLOW VELOCITY(FEET/SEC.) = 4.79 DEPTH*VELOCITY = 2.21 10.16 15.93 PIckeJ. up OJ e.f.';, 'll' OS **************************************************************************** I FLOW PROCESS FROM NODE 628.50 TO NODE 628.00 IS CODE = 3 ---------------------~--------------------------------------------~--------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< , ! ==================================================================~========= DEPTH OF FLOW IN 21.0 INCH PIPE IS 12.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.6 UPSTREAM NODE ELEVATION = 1084.00 DOWNSTREAM NODE ELEVATION = 1082.00 FLOWLENGTH(FEET) = 60.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 15.93 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 14.24 1 1 1 1*******************************************************~******************** FLOW PROCESS FROM NODE 628.00 TO NODE 628.00 IS CODE = 1 1______------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< , >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 1============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 14.24 7fr I 1 1 1 1 I I RAINFALL INTENSITY(INCH/HR) = 2.99 TOTAL STREAM AREA(ACRES) = 5.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.93 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. * * PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 49.65 62.56 TABLE ** TIME (MIN.) 14.24 20.93 INTENSITY (INCH/HOUR) 2.988 2.439 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA(ACRES) = ESTIMATES ARE = 62.56 32.18 AS FOLLOWS: TC(MIN.) = 20.93 **************************************************************************** 1 FLOW PROCESS FROM NODE 628.00 TO NODE 640.00 IS CODE = 3 ------------------------------------------------------------------~--------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< 1 >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ DEPTH OF FLOW IN 33.0 INCH PIPE IS 22.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.5 UPSTREAM NODE ELEVATION = 1082.00 DOWNSTREAM NODE ELEVATION = 1063.00 FLOWLENGTH(FEET) = 600.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER (INCH) = 33.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 62.56 TRAVEL TIME(MIN.) = .69 TC(MIN.) = 21.62 1 1 1 1**************************************************************************** FLOW PROCESS FROM NODE 429.00 TO NODE 429.00 IS CODE = 7 1______------------------------------------------------------------~--------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ==================================================================e========= I USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 15.50 RAIN INTENSITY(INCH/HOUR) = 2.86 TOTAL AREA(ACRES) = 12.20 TOTAL RUNOFF(CFS) = 33.20 OWSIk. tloL.) Jrom tract lLtt8tt 1**************************************************************************** FLOW PROCESS FROM NODE 429.00 TO NODE 616.00 IS CODE = 3 I--~~~~~~~;;~;~-;~;~;~;-;~;~~;~;~-;;;~-~~~~~~~~~~~------------------------ >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ I 1 I I DEPTH OF FLOW IN 24.0 INCH PIPE IS 15.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 15.3 UPSTREAM NODE ELEVATION = 1143.60 DOWNSTREAM NODE ELEVATION = 1112.00 FLOWLENGTH(FEET) = 760.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 24.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 33.20 TRAVEL TIME(MIN.) = .83 TC(MIN.) = 16.33 1 ~"\ 1**************************************************************************** FLOW PROCESS FROM NODE 616.00 TO NODE 616.00 IS CODE = 1 I--;;;;;~;;~~;~;;-~;~;;;;~;;;-;;;;~-;~;-~~;;~~;;~;~~~~~--------------------- ==================================================================~========= 1 1 TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 16.33 RAINFALL INTENSITY(INCHjHR) = 2.78 TOTAL STREAM AREA(ACRES) = 12.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = 33.20 1 ARE: I 1******************************************************************~********* FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = 7 ------------------------------------------------------------------~--------- I >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ============================================================~=============== USER-SPECIFIED VALUES ARE AS FOLLOWS: " If' I TC(MIN) = 15.67 RAIN INTENSITY(INCHjHOUR) = 2.84 6-) On~~e TOTAL AREA(ACRES) = 8.20 TOTAL RUNOFF(CFS) = 20.23 floW wkLho'f\ 1******************************************************************~********* FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = 1 ---------------------------------------------------------------------------- 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ==================================================================7========= TOTAL NUMBER OF STREAMS = 3 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 15.67 RAINFALL INTENSITY(INCHjHR) = 2.84 TOTAL STREAM AREA(ACRES) = 8.20 I PEAK FLOW RATE(CFS) AT CONFLUENCE = 20.23 1**************************************************************************** FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = ,7 ---------------------------------------------------------------------------- I >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< . ============================================================================ USER-SPECIFIED VALUES ARE AS FOLLOWS: , TC(MIN) = 14.95 RAIN INTENSITY (INCHjHOUR) = 2.91 Row .}rom. I TOTAL AREA(ACRES) = 21.32 TOTAL RUNOFF(CFS) = 56.39 Une. 'e.' 1**************************************************************************** FLOW PROCESS FROM NODE 617.00 TO NODE 617.00 IS CODE = 1 ---------------------------------------------------------------------------- I 1 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< 1 >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ' ==================================================================~========= TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MIN.) = 14.95 RAINFALL INTENSITY(INCHjHR) = 2.91 TOTAL STREAM AREA(ACRES) = 21.32 PEAK,FLOW RATE(CFS) AT CONFLUENCE = 56.39 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO ?'O I I 1 1 CONFLUENCE FORMULA USED FOR 3 STREAMS. ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 106.09 107.10 106.83 TABLE ** TIME (MIN.) 14.95 15.67 16.33 INTENSITY (INCH/HOUR) 2.912 2.841 2.780 15.67 1 1 1 1**************************************************************************** FLOW PROCESS FROM NODE 634.50 TO NODE 634.50 IS CODE = 1 ---------------------------------------~--------------------------~--------- I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< , ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 16.16 RAINFALL INTENSITY(INCH/HR) = 2.80 TOTAL STREAM AREA(ACRES) = 41.72 PEAK FLOW RATE(CFS) AT CONFLUENCE = 1 1 107.10 1******************************************************************~********* FLOW PROCESS FROM NODE 429.00 TO NODE 616.00 IS CODE = 2 , 6-\ 1 1 1 1 1 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ' ==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1144.00 DOWNSTREAM ELEVATION = 1113.00 ELEVATION DIFFERENCE = 31.00 TC = .303*[( 850.00**3)/( 31.00)]**.2 = 8.729 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.867 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8879 SUBAREA RUNOFF(CFS) = 5.49 ,,?Ov I TOTAL AREA (ACRES) = 1.60 TOTAL RUNOFF(CFS) = 5.49 1******************************************************************~********* FLOW PROCESS FROM NODE 616.00 TO NODE 634.50 IS CODE = 6 G - 2. I:::::::~~~~~~~:~~~~~~~=:~~~~~~~~:~~~~:~~~~~~~~~~~:::::::::::::::::::::: UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1080.00 STREET LENGTH(FEET) = 1300.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 44.00 I 1 I 1 1 1 1 1 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .020 OUTSIDE STREET CROSSFALL(DEClMAL) = .020 42.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = ..-- . STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 11.79 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 1.93 STREETFLOW TRAVELTIME(MIN) = 4.07 TC(MIN) = 8.04 5.33 12.79 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.162 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8857 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 3.40 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .39 HALFSTREET FLOODWIDTH(FEET) = 13.12 FLOW VELOCITY(FEET/SEC.) = 5.73 DEPTH*VELOCITY = 2.23 5.04 10.53 1******************************************************************~********* FLOW PROCESS FROM NODE 635.00 TO NODE 634.50 IS CODE = 8 'G-3 1 1 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 1===~~~~~~=~~~=~~;;~~~=~;;~;;~;~7~;~~/~~;;)=~==;~~~~======================= SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 1.70 TOTAL AREA(ACRES) = 5.10 TC(MIN) = 12.79 COEFFICIENT = .8857 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 4.76 15.29 **************************************************************************** 1 FLOW PROCESS FROM NODE 634.50 TO NODE 634.50 IS CODE = 1. ------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< 1 >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ==================================================================~========= TOTAL NUMBER OF STREAMS = 2 1 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 12.79 RAINFALL INTENSITY(INCH/HR) = 3.16 TOTAL STREAM AREA(ACRES) = 5.10 I ~ I 1 1 1 1 PEAK FLOW RATE(CFS) AT CONFLUENCE = 15.29 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 100.09 120.63 TABLE * * TIME (MIN. ) 12.79 16.16 INTENSITY (INCH/HOUR) 3.162 2.795 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA(ACRES) = ESTIMATES ARE = 120.63 46.82 AS FOLLOWS: Tc(MIN.) = 16.16 1**************************************************************************** FLOW PROCESS FROM NODE 634.50 TO NODE 634.00 IS CODE = 3 ---------------------------------------------------------------------------- I 1 1 I >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 42.0 INCH PIPE IS 34.4 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 14.3 UPSTREAM NODE ELEVATION = 1080.00 DOWNSTREAM NODE ELEVATION = 1068.00 FLOWLENGTH(FEET) = 750.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 42.00 NUMBER OF PIPES = 1 PIPEFLOW THRU SUBAREA(CFS) = 120.63 TRAVEL TIME(MIN.) = .87 TC(MIN.) = 17.03 I I 1 1 **************************************************************************** I __:~~_:~~:~~~_:~~~_~~~~___~~::~~_:~_~~~~___~~~:~~_:~_:~~~_:___~___~~~~~~___ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< 1 =========~;;~~~=~;~;~~~=;~;~~~=~;~;~~=========================~========== DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 620.00 UPSTREAM ELEVATION = '1120.25 DOWNSTREAM ELEVATION = 1111.00 ELEVATION DIFFERENCE = 9.25 TC = .359*[( 620,00**3)/( 9.25)]**.2 = 10.903 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.440 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8533 SUBAREA RUNOFF(CFS) = 4.70 TOTAL AREA(ACRES) = 1.60 TOTAL RUNOFF(CFS) = 4.70 *******************************************************...********;********** 1 FLOW PROCESS FROM NODE 636.00 TO NODE 637.00 IS CODE = 6 ' f-j5.1 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1====================================================================:======= UPSTREAM ELEVATION = 1111.00 DOWNSTREAM ELEVATION = 1084.00 STREET LENGTH(FEET) = 970.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 A.\ 1 I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = I INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 I I I I 1 1 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTlME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 13.64 AVERAGE FLOW VELOCITY (FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 1.53 STREETFLOW TRAVELTIME(MIN) = 3.82 TC(MIN) = 7.20 4.23 14.73 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.936 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8466 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 3.60 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 FLOW VELOCITY(FEETjSEC.) = 4.23 DEPTH*VELOCITY = 1.70 4.97 9.67 ******************************************************************~********* I; FLOW PROCESS FROM NODE 638.00 TO NODE 634.20 IS CODE = 6 F-J~ -------------------------------------------~----------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< . 1==================================================================~========= UPSTREAM ELEVATION = 1098.00 DOWNSTREAM ELEVATION = 1070.00 STREET LENGTH(FEET) = 1150.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.547 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8400 SUBAREA AREA(ACRES) = 6.60 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 10.20 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .42 HALFSTREET FLOODWIDTH(FEET) = 17.11 FLOW VELOCITY(FEETjSEC.) = 4.56 DEPTH*VELOCITY = 1.92 I1.CfS +0 C.r...ih,e I rest Dver flows ~ **************************************************************************** FLOW PROCESS FROM NODE 634.20 TO NODE 634.20 IS CODE = 7 1 I I I I I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 1.61 STREETFLOW TRAVELTIME(MIN) = 4.55 TC(MIN) = 16.69 4.21 19.28 14.12 23.79 Totc..\ fit)(,.) 40 (J.e" if &:.1 /o1\ly 1 b.t,'V . Il_____________________________________________________---------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< 1==;;;;:;~;~~;~;~=~~~;;;=~=~;=;~~~;;7===================================== - TC(MIN) = 19.28 RAIN INTENSITY(INCH/HOUR) = 2.55 I TOTAL AREA(ACRES) = 5.10 TOTAL RUNOFF(CFS) = 12.00 flow +0 C./?),1tgl **************************************************************************** 1 FLOW PROCESS FROM NODE 634.20 TO NODE 634.20 IS CODE = 8 F-J6,~ .. --------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< Jr==~~~~~~=~;~=~~;;~~~=~;;;;;~;~(~;~~/~~;;)=:==;~;:;======================= SOIL CLASSIFICATION IS "c" I" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8400 : SUBAREA AREA(ACRES) = .90 SUBAREA RUNOFF(CFS) = 1.93 TOTAL AREA(ACRES) = 6.00 TOTAL RUNOFF(CFS) = 13.93 pd:.ecl up by' Tf(MIN) = 19.28 ~ I C./?), 11' 1::1 **************************************************************************** I FLOW PROCESS FROM NODE 634.20 TO NODE 634.40 IS CODE = 3 ------------------------------------------------------------------~--------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< I==;;~;~=~;=;~;=~;==;~~~=~;~~=~~~;=~;==~~~~=~;~~;;========================== PIPEFLOW VELOCITY(FEET/SEC.) = 7.1 I UPSTREAM NODE ELEVATION = 1071.00 , DOWNSTREAM NODE ELEVATION = 1069.00 FLOWLENGTH(FEET) = 200.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER (INCH) = 21.00 NUMBER OF PIPES = 1 ~ PIPEFLOW THRU SUBAREA (CFS) = 13.93 ~, TRAVEL TIME(MIN.) = .47 TC(MIN.) = 19.75 I I 1**************************************************************************** FLOW PROCESS FROM NODE 634.00 TO NODE 634.00 IS CODE = 1 ' I~::::::~~~~~~~~~:~~~~~~~~~~~:~~~~~:~~~:~~~~~~~~~~:::::::::::::::::::::::::: TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 19.75 RAINFALL INTENSITY(INCH/HR) = 2.51 TOTAL STREAM AREA(ACRES) = 6.00 PEAK FLOW RATE(CFS) AT CONFLUENCE = 13.93 1******************************************************************~********* I FLOW PROCESS FROM NODE 634.20 TO NODE 634.20 IS CODE = 7 ' I >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< , ;=========================================================================== USER-SPECIFIED VALUES ARE AS FOLLOWS: ' TC(MIN) = 19.28 RAIN INTENSITY(INCH/HOUR) = 2.55 TOTAL AREA(ACRES) = 5.10 TOTAL RUNOFF(CFS) = I I 12.00 FloW by +rolYl C./?J. 'It t:=.1 A~ Il*************************************************************************** r, FLOW PROCESS FROM NODE 634.50 TO NODE 634.30 IS CODE = 8 F-j't It-~~~~~~~~~;~~;-~;-;~;~~-;~-~~;~~;;-;;~;-;~;~~~~~----------------------- ============================================================================ ,-,' 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 1.50 I TOTAL AREA(ACRES) = 6.60 TC(MIN) = 19.28 2.547 COEFFICIENT = .8829 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 3.37 15.37 PlcXeJ- Up by , '1/ C,f1, 1:':.1.. ~*****************************************************************~********* FLOW PROCESS FROM NODE 634.40 TO NODE 634.00 IS CODE = 3 , I--~~~~~~~;;~;;-;~;;;~;-;~;;~;~;;-;~~~-;~;~~~~~~~--------------~--------- >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I DEPTH OF FLOW IN 21.0 INCH PIPE IS 13.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.6 UPSTREAM NODE ELEVATION = 1069.00 DOWNSTREAM NODE ELEVATION = 1068.00 FLOWLENGTH(FEET) = 50.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 21.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 15.37 TRAVEL TIME(MIN.) = .09 TC(MIN.) = 19.37 1 '1**************************************************************************** FLOW PROCESS FROM NODE 634.00 TO NODE 634.00 IS CODE = 8 'F-ILr 04tSlte. ------------------------------------------------------------------~--------- 1==:~~~~~~~~~~~~~;;~~~~~;~~;~~7~;;;/;~~;):~:;~;;~======================= SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF SUBAREA AREA (ACRES) = 38.80 TOTAL AREA (ACRES) = 45.40 TC(MIN) = 19.37 I I COEFFICIENT = .8399 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 82.80 98.18 Fr6m trG\C.t , 2.5 't I e, I ,I I I -**************************************************************************** 'I FLOW PROCESS FROM NODE 634.00 TO NODE 634.00 IS CODE = 1 , ------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< 1- >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< , ==================================================================~========= TOTAL NUMBER OF STREAMS = 2 ' CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 19.37 RAINFALL INTENSITY(INCH/HR) = 2.54 TOTAL STREAM AREA(ACRES) = 45.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 98.18 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK FLOW RATE TABLE ** STREAM RUNOFF TIME INTENSITY AA..- I I I NUMBER 1 2 (CFS) 111. 83 111. 09 (MIN.) 19.37 19.75 ( INCH/HOUR) 2.541 2.515 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 111. 83 51. 40 AS FOLLOWS: Tc (MIN.) = 19.37 1**************************************************************************** _ FLOW PROCESS FROM NODE 642.50 TO NODE 642.50 IS CODE = 1 ---------------------------------------------------------------------------- I I I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 19.37 RAINFALL INTENSITY(INCH/HR) = 2.54 TOTAL STREAM AREA{ACRES) = 51.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = 111.83 1******************************************************************~********* FLOW PROCESS FROM NODE 634.00 TO NODE 634.00 IS CODE = 7 ---------------------------------------------------------------------------- - >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< I==~~~:~~f;~~;~~~:~~~;~:~~:~~:~~~~~~~:~::::~=:==:~~:==========;~;:~~=~~~n~ I TOTAL AREA(ACRES) = 46.80 TOTAL RUNOFF(CFS) = 120.70 uru:kr OePorto6. I I I I I I 1**************************************************************************** 1*******************************************************************,'., ********* FLOW PROCESS FROM NODE 634.00 TO NODE 634.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< , . >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< 11==================================================================?========= , TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 16.17 RAINFALL INTENSITY(INCH/HR) = 2.79 TOTAL STREAM AREA(ACRES) = 46.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 120.70 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. * * PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 214. 07 221.58 TABLE ** TIME (MIN.) 16.17 19.37 INTENSITY (INCH/HOUR) 2.794 2.541 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 221.58 98.20 AS FOLLOWS: Tc(MIN.) = 19.37 Plow 1(\ I\'lWf\lme. c.fkr lJocle. b31t A6 I I ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I FLOW PROCESS FROM NODE 634.00 TO NODE 640.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 69.0 INCH PIPE IS 51.6 INCHES PIPEFLOW VELOCITY(FEETjSEC.) = 10.6 UPSTREAM NODE ELEVATION = 1068.00 DOWNSTREAM NODE ELEVATION = 1066.20 FLOWLENGTH(FEET) = 390.00 MANNING'S N = .013 ESTIMATED PIPE DIAMETER(INCH) = 69.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 221.58 TRAVEL TIME(MIN.) = .61 TC(MIN.) = 19.98 1 ,-*******************************************************************,' ********* FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 1 ---------------------------------------------------------------------------- I==~~~~~~~~:~~~~~=:~~~:~~~~~~=~~~~=~~~=~~~~~~~~~~:::::===========~========= TOTAL NUMBER OF STREAMS = 3 . , CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 19.98 RAINFALL INTENSITY(INCHjHR) = 2.50 TOTAL STREAM AREA(ACRES) = 98.20 PEAK FLOW RATE(CFS) AT CONFLUENCE = I I 221.58 **************************************************************************** I FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 7 ---------------------------------------------------------------------------- - >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< lI==~~~:~~f~~~;~~~:~~~~~:~~:*~:~~~~~~~:~::::~=:==:~::===========~:~==t:::=~:e 'D' TOTAL AREA(ACRES) = 32.18 TOTAL RUNOFF(CFS) = 62.60 i I . ******************************************************************~********* I FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 1 ' --~~~~~~;~~~;~;;-~;~;;;;~;;;-~;~;~-;~~-~~;;~~;;~;;;;;;--------------------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM TIME OF CONCENTRATION(MIN.) = 20.93 RAINFALL INTENSITY(INCHjHR) = 2.44 TOTAL STREAM AREA(ACRES) = 32.18 PEAK FLOW RATE(CFS) AT CONFLUENCE = 62.60 2 ARE: 1**************************************************************************** / FLOW PROCESS FROM NODE 634.20 TO NODE 642.50 IS CODE = 2 F-/~S .1------------------------------------------------------------------~.--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< . ------------------------------------------------------------------~--------- ---------------------------------------------------------------------------- I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)j(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 830.00 ~ I I I I I **************************************************************************** I" FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 8 F-I~,r ---------------------------------------------------------------------------- , >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ' 1==:~~~~g~~~~:~~~~~~~:~~~~;;~;;7~;~;/;~;;)=:==;~~;;======================= SINGLE-FAMILY(1/2 ACRE LOT) RUNOFF COEFFICIENT = .8123 I SUBAREA AREA(ACRES) = 5.90 SUBAREA RUNOFF(CFS) = 14.80 ,. TOTAL AREA(ACRES) = 7.50 TOTAL RUNOFF(CFS) = 19.00 TC(MIN) = 13.37 '**************************************************************************** _ FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 1 , 1_-----------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< . - >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< I==;~;~~=~;;;=~;=;;;;~;=:==;====================================7========= . CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MIN.) = 13,37 RAINFALL INTENSITY(INCH/HR) = 3.09 TOTAL STREAM AREA(ACRES) = 7.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = UPSTREAM ELEVATION = 1074.00 DOWNSTREAM ELEVATION = 1066.00 ELEVATION DIFFERENCE = 8.00 TC = .359*[( 830.00**3)/( 8.00)]**.2 = 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) = 4.20 TOTAL AREA(ACRES) = 1.60 13.371 3.089 .8488 TOTAL RUNOFF(CFS) = 4.20 I I I I I I 19.00 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 207.30 296.71 293.81 TABLE ** TIME (MIN. ) 13.37 19.98 20.93 INTENSITY ( INCH/HOUR) 3.089 2.500 2.439 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 296.71 137.88 AS FOLLOWS: TC(MIN.) = 19.98 **************************************************************************** .'" FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 8 f-itr,5 ofFsde , ------------------------------------------------------------------~--------- . >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 1==:~~~~g~~~~:~~~~~~~:~~~~;;~;;7~;~;/;~;;)=:==;~~~~======================= SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8130 I ~ I I SUBAREA AREA(ACRES) = TOTAL AREA(ACRES) = TC(MIN) = 19.98 1.10 138.98 SUBAREA RUNOFF(CFS) TOTAL RUNOFF(CFS) = = 2.24 298.95 TofcJ pipE.- tl~L...> unoer De Portolo. 1******************************************************************,********** FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 3 ---------------------------------------------------------------------------- I I I _ >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW) <<<<< , . ============================================================================ DEPTH OF FLOW IN 78.0 INCH PIPE IS 62.6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.5 UPSTREAM NODE ELEVATION = 1066.20 DOWNSTREAM NODE ELEVATION = 1064.70 FLOWLENGTH(FEET) = 300.00 MANNING'S N = .015 ESTIMATED PIPE DIAMETER(INCH) = 78.00 NUMBER OF PIPES = PIPEFLOW THRU SUBAREA(CFS) = 298.95 TRAVEL TIME(MIN.) = .48 TC(MIN.) = 20.46 1 ******************************************************************;********** I~ FLOW PROCESS FROM NODE 10.10 TO NODE 10.00 IS CODE = 2 'S -I -------------------------------.----------------------------------,---------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I I ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.641 SOIL CLASSIFICATION IS "c" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8364 SUBAREA AREA(ACRES) = 7.00 SUBAREA RUNOFF(CFS) = 21.32 TOTAL AREA(ACRES) = 7.80 TOTAL RUNOFF(CFS) = 23.90 TC(MIN) = 9.79 1******************************************************************~********* FLOW PROCESS FROM NODE 15.10 TO NODE 15.00 IS CODE = 8 S-~ I' ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< - ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.641 ~ 11 SOIL CLASSIFICATION IS SINGLE-FAMILY(1/4 ACRE I SUBAREA AREA(ACRES) = TOTAL AREA (ACRES) = TC(MIN) = 9.79 Il*************************************************************************** _ FLOW PROCESS FROM NODE 15.00 TO NODE 20.00 IS CODE = 85-~ It-~~~~~~~~~;~~;-~;-;~;~~-;~-~~;~~;;-;;~;-;~;~~~~~----------------------- "en LOT) RUNOFF COEFFICIENT = .8364 2.40 SUBAREA RUNOFF(CFS) = 7.31 10.20 TOTAL RUNOFF(CFS) = 31.21 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.641 SOIL CLASSIFICATION IS "C" - SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8364 I, SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 9.14 TOTAL AREA(ACRES) = 13.20 TOTAL RUNOFF(CFS) = 40.35 TC(MIN) = 9.79 ~*****************************************************************~********* FLOW PROCESS FROM NODE 10.00 TO NODE 20.00 IS CODE = 6 S-2.. -----------------------------------------------------------------~--------- I[ >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< --=========================================================================== UPSTREAM ELEVATION = 1090.00 DOWNSTREAM ELEVATION = 1080.00 1 STREET LENGTH(FEET) = 470.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 38.00 I I SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 36.00 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLOWDEPTH(FEET) = .65 HALFSTREET FLOODWIDTH(FEET) = 26.31 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 3.84 STREETFLOW TRAVELTIME(MIN) = 1.33 TC(MIN) = 11.12 41.41 5.88 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.404 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8865 SUBAREA AREA(ACRES) = .70 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 13.90 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .65 HALFSTREET FLOODWIDTH(FEET) = 26.31 FLOW VELOCITY(FEET/SEC.) = 6.03 DEPTH*VELOCITY = 3.94 2.11 42.46 1**************************************************************************** , FLOW PROCESS FROM NODE 20.00 TO NODE 30.00 IS CODE = 6 5 - 5 I A.Q", 11 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ I UPSTREAM ELEVATION = , STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) I I I I I I 1 I 1080.00 470.00 = 38.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1070.00 DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .020 OUTSIDE STREET CROSSFALL(DEClMAL) = .020 36.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTloN THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. STREET FLORDEPTH(FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 26.88 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 3.92 STREETFLOW TRAVELTIME(MIN) = 1.33 TC(MIN) = 12.45 43.31 5.90 100.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 3.208 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8858 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 14.50 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .66 HALFSTREET FLOODWIDTH(FEET) = 26.88 FLOW VELOCITY(FEETjSEC.) = 6.01 DEPTH*VELOCITY = 3.99 1. 70 44.17 1******************************************************************~********* FLOW PROCESS FROM NODE 642.00 TO NODE 642.00 IS CODE = 1 II--~~~~~~;~~~;~;;-~;~;;;;~;;;-~;;;~-;~;-~~;;~~;;~;~~~~~-----------~--------- ==================================================================k========= I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 12.45 RAINFALL INTENSITY(INCHjHR) = 3.21 TOTAL STREAM AREA(ACRES) = 14.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 44.17 I I I 1******************************************************************~********* , FLOW PROCESS FROM NODE 10.20 TO NODE 25.00 IS CODE = 2 ,$-b I:::::::~~~~~~~:~~~~~~:~~~~~~~:~~~~~~:~~~~~~~::::::::::::::::::::::::::::: ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)j(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 620.00 UPSTREAM ELEVATION = 1090.00 DOWNSTREAM ELEVATION = 1077.00 ELEVATION DIFFERENCE = 13.00 TC = .303*[( 620.00**3)j( 13.00)]**.2 = 8.595 ~ 1------- I 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3.899 SOIL CLASSIFICATION IS "C" I COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8880 SUBAREA RUNOFF(CFS) = 2.77 TOTAL AREA(ACRES) = .80 TOTAL RUNOFF(CFS) = 2.77 1**************************************************************************** FLOW PROCESS FROM NODE 25.00 TO NODE 30.00 IS CODE = 6 S-~ I--:::::~~;;~;;-;;;;;;;~;-;~~;~;~;;-;;;~-;~;~~:::::------------~--------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- i 1070.00 1077.00 810.00 = 38.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. I UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) I I I I 1 I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 36.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .37 HALFSTREET FLOODWIDTH(FEET) = 12.05 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = .83 STREETFLOW TRAVELTIME(MIN) = 5.95 TC(MIN) = 3.57 2.27 14.54 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.955 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8848 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = SUMMED AREA (ACRES) = 1.40 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .39 HALFSTREET FLOODWIDTH(FEET) = 13.19 FLOW VELOCITY(FEET/SEC.) = 2.33 DEPTH*VELOCITY = .91 1. 57 4.34 1******************************************************************~********* - FLOW PROCESS FROM NODE 642.00 TO NODE 642.00 IS CODE = 1 I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT TIME OF CONCENTRATION(MIN.) = 14.54 I 'RAINFALL INTENSITY(INCH/HR) = 2.96 TOTAL STREAM AREA (ACRES) = 1.40 PEAK FLOW RATE(CFS) AT CONFLUENCE = I I 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ------------------------------------------------------------------~--------- ---------------------------------------------------------------------------- STREAM 2 ARE: 4.34 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. * * PEAK STREAM NUMBER 1 FLOW RATE RUNOFF (CFS) 47.88 TABLE ** TIME (MIN.) 12.45 INTENSITY ( INCH/HOUR) 3.208 '6\ I I COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = 2 45.03 14.54 2.955 ESTIMATES ARE = 47.88 15.90 AS FOLLOWS: Tc(MIN.) = 12.45 IL*************************************************************************** FLOW PROCESS FROM NODE 642.00 TO NODE 642.00 IS CODE = 1 r-----------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ' ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS = 2 I CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 12.45 RAINFALL INTENSITY(INCH/HR) = 3.21 I TOTAL STREAM AREA(ACRES) = 15.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = 47.88 1******************************************************************~********* FLOW PROCESS FROM NODE 642.00 TO NODE 642.00 IS CODE = 7 , I >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ' ===============~==================================================b========= USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 19.98 RAIN INTENSITY (INCH/HOUR) = 2.50 TOTAL AREA(ACRES) = 138.98 TOTAL RUNOFF(CFS) = I 297.46 2.'1B,95 1******************************************************************~********* FLOW PROCESS FROM NODE 642.00 TO NODE 642.00 IS CODE = 1 I 1 I I I I I PEAK FLOW RATE(CFS) = 334.77 Tc(MIN.) = 19.98 ' TOTAL AREA(ACRES) = 154.88 ==================================================================~========= I 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED'STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT TIME OF CONCENTRATION(MIN.) = 19.98 RAINFALL INTENSITY(INCH/HR) = 2.50 TOTAL STREAM AREA(ACRES) = 138.98 PEAK FLOW RATE(CFS) AT CONFLUENCE = STREAM 2 ARE: 297.46 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. * * PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 233.18 334.77 TABLE ** TIME (MIN. ) 12.45 19.98 INTENSITY ( INCH/HOUR) 3.208 2.500 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: END OF STUDY SUMMARY: PEAK FLOW RATE(CFS) = TOTAL AREA(ACRES) = 334.77 154.88 Tc(MIN.) = 19.98 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ''l- "Cl 1 END OF RATIONAL METHOD ANALYSIS I I I I I I I 1 I I I 1 I 1 I I I 1 - .-;-- ~~ I . -I . .. I ******************************************************************'********** RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL (c) Copyright 1982-89 Advanced Engineering Software (aes) Ver. 5.4A Release Date:12/29/89 Serial # 4280 Analysis prepared by: Robert Bein, William Frost & Associates, 28765 Single Oak Drive, Suite 250 Temecula, CA 92390 (714) 676-8042 Inc. ---------------------------------------------------------------------------- FILE NAME: X3610.DAT TIME/DATE OF STUDY: 11:14 2/19/1991 I I~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ USER SPECIFIED STORM EVENT(YEAR) = 10.00 I SPECIFIED MINIMUM, PIPE SIZE (INCH) = 18.00 I SPECIFIED PERCENT OF GRADIENTS(DEClMAL) TO USE 10-YEAR STORM 10-MlNUTE INTENSITY(INCH/HOUR) = 10-YEAR STORM 60-MlNUTE INTENSITY(INCH/HOUR) = 1 100-YEAR STORM 10-MlNUTE INTENSITY(INCH/HOUR) 100-YEAR STORM 60-MlNUTE INTENSITY (INCH/HOUR) SLOPE OF 10-YEAR INTENSITY-DURATION CURVE = SLOPE OF 100-YEAR INTENSITY-DURATION CURVE = I COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 10.00 1-HOUR INTENSITY(INCH/HOUR) SLOPE OF INTENSITY DURATION CURVE = .5506 I FOR FRICTION 2.360 .880 = 3.600 = 1.400 .5505732 .5271139 SLOPE = ,90 .8888 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED NOTE: ONLY PEAK CONFLUENCE VALUES CONSIDERED 1**************************************************************************** FLOW PROCESS FROM NODE 608.10 TO NODE 608.00 IS CODE = 2 ! F-i I--~~~~~~;~~;~~-;;;;~~-~;~;~~~-;~~~;~-;;~~~;~;~~~~~------------------------ ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1 1 I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1156.00 ELEVATION DIFFERENCE = 22.00 TC = .359*[( 1000.00**3)/( 22.00)]**.2 = 12.214 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.135 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8310 SUBAREA RUNOFF(CFS) = 8.52 TOTAL AREA(ACRES) = 4.80 TOTAL RUNOFF(CFS) = 8.52 1**************************************************************************** FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 1 9- 11---------------------------------------------------------___________________ ". . >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< .============================================================================ TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 12.21 RAINFALL INTENSITY(INCH/HR) = 2.14 TOTAL STREAM AREA(ACRES) = 4.80 PEAK FLOW RATE(CFS) AT CONFLUENCE = 8.52 ******************************************************************,********** .. FLOW PROCESS FROM NODE 608.20 TO NODE 608.00 IS CODE = 2 f-Z. ------------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< , ==================================================================b========= 'I II II II ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1164.00 DOWNSTREAM ELEVATION = 1156.00 ELEVATION DIFFERENCE = 8.00 TC = .359*[( 900.00**3)/( 8.00)]**.2 = 14.037 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.978 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8268 SUBAREA RUNOFF(CFS) = 9.16 TOTAL AREA(ACRES) = 5.60 TOTAL RUNOFF(CFS) = 9.16 1******************************************************************~********* FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 1_--------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< , ' ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I 1 TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 14.04 RAINFALL INTENSITY(INCH/HR) = 1.98 TOTAL STREAM AREA(ACRES) = 5.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 9.16 1******************************************************************~********* FLOW PROCESS FROM NODE 606.20 TO NODE 606.10 IS CODE = 2 ' P-z/.5 1______------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==================================================================~=======~= 1 1 I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 650.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1168.00 ELEVATION DIFFERENCE = 10.00 TC = .359*[( 650.00**3)/( 10.00)]**.2 = 11.043 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.257 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8339 ,s II I **************************************************************************** FLOW PROCESS FROM NODE 608.00 TO NODE 608.00 IS CODE = 1 I--:::::~~;~~;~;~-~;~~;~;~~;;-;;~~~-;~~-~~;;~~~;~~~~~~~--------------------- >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< I==;~;~~=~;;;=~;=;;;;~;=:==;============================================== CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MIN.) = 11.04 RAINFALL INTENSITY(INCH/HR) = 2.26 TOTAL STREAM AREA(ACRES) = 1.90 PEAK FLOW RATE(CFS) AT CONFLUENCE = SUBAREA RUNOFF(CFS) = TOTAL AREA (ACRES) = 3.58 1.90 TOTAL RUNOFF(CFS) = 3.58 I I I I I 1 3.58 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 18.48 19.87 20.18 TABLE ** TIME (MIN.) 11. 04 12.21 14.04 INTENSITY ( INCH/HOUR) 2.257 2.135 1.978 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA(ACRES) = ESTIMATES ARE = 20.18 12.30 AS FOLLOWS: TC(MIN.) = 14.04 ******************************************************************'********** I FLOW PROCESS FROM NODE 606.10 TO NODE 606.00 IS CODE = 6 F-3,S ....;. --- - - ------------------------ ------------------ - - - - - - - ------ - - - - -,- - - - - - - - -- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ' 1============================================================================ UPSTREAM ELEVATION = 1168.85 DOWNSTREAM ELEVATION = 1135.25 STREET LENGTH (FEET) = 1300.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 1 I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .064 18.00 --:.: SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .45, HALFSTREET FLOODWIDTH(FEET) = 17.19 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 1.92 STREETFLOW TRAVELTIME(MIN) = 5.02 TC(MIN) = 23.06 4.31 19.06 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 4.20 SUMMED AREA(ACRES) = 16.50 1.671 COEFFICIENT = .8169 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 5.73 25.91 plCkJ..Up by , C.1b. 11' I < Z. , '6~ II I END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .45 HALFSTREET FLOODWIDTH(FEET) = 17.19 FLOW VELOCITY(FEET/SEC.) = 4.85 DEPTH*VELOCITY = 2.16 I I I I **************************************************************************** I--:~~-:~~~~~~_:~~~-~~~~---~~~:~~_:~-~~~~---~:~:~~_:~_~~~~_:___:___E~?______ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< I=========~;;;;~~=~;~;~~~=;~~~~=~;~;~;;==================================== DEVELOPMENT IS CONDOMINIUM . TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1139.00 DOWNSTREAM ELEVATION = 1131.00 ELEVATION DIFFERENCE = 8.00 TC = .359*[( 850.00**3)/( 8.00)J**.2 = 13.563 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.015 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8278 SUBAREA RUNOFF(CFS) = 4.00 TOTAL AREA(ACRES) = 2.40 TOTAL RUNOFF(CFS) = 4.00 pIC\;:eJ.VP by e,~. 'It.3 **************************************************************************** I FLOW PROCESS FROM NODE 606.00 TO NODE 611.00 IS CODE = 2 f-t ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< , ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**.2 I INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1138.00 DOWNSTREAM ELEVATION = 1122.00 I ELEVATION DIFFERENCE = 16.00 TC = .359*[( 1000.00**3)/( 16.00)J**.2 = 13.017 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.062 SOIL CLASSIFICATION IS "c" I CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8291 SUBAREA RUNOFF(CFS) = 4.61 TOTAL AREA(ACRES) = 2.70 TOTAL RUNOFF(CFS) = 4.61 pl~ke~vp I ~y ell If't- **************************************************************************** , I--:~~-:~~~~~~_:~~~-~~~~---~~~::~_:~-~~~~___~~~::~_:~_~~~~_:___:__E~~'J:____ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< , ==================================================================k========= I I I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW-LENGTH = 750.00 UPSTREAM ELEVATION = 1175.10 DOWNSTREAM ELEVATION = 1167.30 ELEVATION DIFFERENCE = 7.80 TC = .359*[( 750.00**3)/( 7.80)]**.2 = 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" 12.646 2.095 51 I 1 CONDOMINIUM DEVELOPMENT SUBAREA RUNOFF(CFS) = TOTAL AREA (ACRES) = RUNOFF COEFFICIENT = .8299 1. 74 1.00 TOTAL RUNOFF(CFS) = 1. 74 **************************************************************************** 1 FLOW PROCESS FROM NODE 606.10 TO NODE 352.00 IS CODE = 6 C-3,1- ------------------------------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1===================================================================. ========= UPSTREAM ELEVATION = 1168.00 DOWNSTREAM ELEVATION = 1135.30 STREET LENGTH (FEET) = 1200.00 CURB HEIGTH(INCHES) = 6. , STREET HALFWIDTH(FEET) = 38.00 1 1 1 1 I I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 36.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .30 HALFSTREET FLOODWIDTH(FEET) = 10.05 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = .92 STREETFLOW TRAVELTIME(MIN) = 6.57 TC(MIN) = 2.99 3.04 19.22 10.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 1.664 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8166 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 2.80 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 11.20 FLOW VELOCITY(FEETjSEC.) = 3.53 DEPTH*VELOCITY = 1.13 2.45 4,18 1**************************************************************************** I FLOW PROCESS FROM NODE 611.60 TO NODE 611.50 IS CODE = 6 'F-~,5 1______------------------------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ==================================================================~========= I I I 1 I 1 UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1135.00 1000.00 = 38.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1120.00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 36.00 INTERIOR STREET CROSS FALL (DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 5,29 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 13.48 AVERAGE FLOW VELOCITY(FEETjSEC.) = 3.18 PRODUCT OF DEPTH&VELOCITY = 1.14 STREETFLOW TRAVELTIME(MIN) = 5.25 TC(MIN) = 24.47 ?~ I 1 I I **************************************************************************** I--~~~-:~~~~~~-~~~~-~~~~---~~~:~~_:~-~~~~---~:::~~_:~-~~~~-:---~--~~~~~---- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< 10.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 1.457 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8082 SUBAREA AREA (ACRES) = 1.90 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 4.70 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.62 FLOW VELOCITY(FEETjSEC.) = 3.31 DEPTH*VELOCITY = 1.26 2.24 6.42 P,ckeJ. up by c. B, on rlo PlcO per trc.et 2.1+\::'? ---------------------------------------------------------------------------- ----------------------------------------------------------------------------. I I I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1178.00 DOWNSTREAM ELEVATION = 1164.00 ELEVATION DIFFERENCE = 14.00 TC = .359*[(900.00**3)/( 14.00)]**.2 = 12.550 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.103 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8302 SUBAREA RUNOFF(CFS) = 8.91 TOTAL AREA(ACRES) = 5.10 TOTAL RUNOFF(CFS) = 8.91 1******************************************************************~********* FLOW PROCESS FROM NODE 618.10 TO NODE 618.00 IS CODE = 8 'F-J6.Z I--~~~~~~~~~;~~;-~;-~~~~;~-;~-~~;~~;;-~;~~-;~~;~~~~~----------------------- ------------------------------------------------------------------~--------- ---------------------------------------------------------------------------- I I 10.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.103 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8302 SUBAREA AREA(ACRES) = 5.10 SUBAREA RUNOFF(CFS) = 8.91 TOTAL AREA(ACRES) = 10.20 TOTAL RUNOFF(CFS) = 17.81 TC(MIN),,; 12.55 1**************************************************************************** FLOW PROCESS FROM NODE 615.00 TO NODE 615.50 IS CODE = 6 'F-h.S 1_--------------------------------------------------------------------------- ==~~~~~:~~~~:~=~:~~~::~:=:~~~~::~~=:~~~=~~~~~~~:::::============b========= I I I I UPSTREAM ELEVATION = STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1164.00 750.00 = 20.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1120.50 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 18.00 INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 20.45 ~ 1 I. I I I STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 13.64 AVERAGE FLOW VELOCITY(FEET/SEC.) = 6.00 PRODUCT OF DEPTH&VELOCITY = 2.18 STREETFLOW TRAVELTIME(MIN) = 2.08 TC(MIN) = 14.63 10.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 1.933 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8255 SUBAREA AREA(ACRES) = 3.30 SUBAREA RUNOFF(CFS) = 5.27 SUMMED AREA(ACRES) = 13.50 TOTAL RUNOFF(CFS) = 23.08 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 FLOW VELOCITY(FEET/SEC.) = 5.82 DEPTH*VELOCITY = 2.22 PichJ.. up by C:B 1\ CI)cz.JC~ 1 I I I 1 * ** * * * * * * * * ** * ***** ** * * ** ****************** ** * * * ** *** * * * ***** * * * * *'* * * * * * * * * * FLOW PROCESS FROM NODE 617.30 TO NODE 617.40 IS CODE = 2 . F-t7,S I::~~~~~~~~~~~~:~~~~~~:~~~~~~~:~~~~~~:~~~~~~~::::::::::::::::::::::::::::: ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1152.00 DOWNSTREAM ELEVATION = 1122.00 ELEVATION DIFFERENCE = 30.00 TC = .359*[( 900.00**3)/( 30.00)]**.2 = 10.776 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.288 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8346 SUBAREA RUNOFF(CFS) = 8.02 TOTAL AREA(ACRES) = 4.20 TOTAL RUNOFF(CFS) = 8.02 1******************************************************************~********* FLOW PROCESS FROM NODE 617.70 TO NODE 617.60 IS CODE = 2 'F- rr ---------------------------------------------------------------------------- I I I I I >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 800.00 UPSTREAM ELEVATION = 1152.00 DOWNSTREAM ELEVATION = 1123.00 ELEVATION DIFFERENCE = 29.00 TC = .359*[( 800.00**3)/( 29.00)]**.2 = 10.109 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.369 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8364 SUBAREA RUNOFF(CFS) = 6.94 TOTAL AREA(ACRES) = 3.50 TOTAL RUNOFF(CFS) = 6.94 1**************************************************************************** FLOW PROCESS FROM NODE 622.50 TO NODE 617.00 IS CODE = 6 F-lb,1- ---------------------------------------------------------------------------- I (pO ~---- I I I I I I I I I I >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< f-/6,1' ============================================================================ UPSTREAM ELEVATION = 1140.00 STREET LENGTH(FEET) = 600.00 STREET HALFWIDTH(FEET) = 20.00 DOWNSTREAM ELEVATION = 1108.00 CURB HEIGTH(INCHES) = 6. DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 18.00 INTERIOR STREET CROSSFALL(DECIMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 7.41 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.12 PRODUCT OF DEPTH&VELOCITY = 1.76 STREETFLOW TRAVELTIME(MIN) = 1.95 TC(MIN) = 12.06 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.150 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8804 SUBAREA AREA(ACRES) = .50 SUBAREA RUNOFF(CFS) = .95 SUMMED AREA(ACRES) = 4.00 TOTAL RUNOFF(CFS) = 7.88 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 FLOW VELOCITY(FEET/SEC.) = 5.45 DEPTH*VELOCITY = 1.87 1******************************************************************~********* FLOW PROCESS FROM NODE 622.50 TO NODE 622.50 IS CODE = 2 ; f-6 ---------------------------------------------------------------------------- I I I I I >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< , ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH FAIR COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 720.00 UPSTREAM ELEVATION = 1168.00 DOWNSTREAM ELEVATION = 1143.00 ELEVATION DIFFERENCE = 25.00 TC = .709*[( 720.00**3)/( 25.00)]**.2 = 19.306 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.659 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .6613 SUBAREA RUNOFF(CFS) = 2.19 TOTAL AREA(ACRES) = 2.00 --:" TOTAL RUNOFF(CFS) = 2.19 I****************************************~**************~**********:********** FLOW PROCESS FROM NODE 622.50 TO NODE 622.00 IS CODE = 6 .f-6.1 ---------------------------------------------------------------------------- I >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ==================================================================F========= UPSTREAM ELEVATION = 1142.00 DOWNSTREAM ELEVATION = 1129.00 STREET LENGTH (FEET) = 900.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = 18.00 ~\ 1 I I I I I I INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 3.69 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 AVERAGE FLOW VELOCITY(FEET/SEC.) = 2.55 PRODUCT OF DEPTH&VELOCITY = .88 STREETFLOW TRAVELTlME(MIN) = 5.87 TC(MIN) = 25.18 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.434 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8072 SUBAREA AREA(ACRES) = 2.60 SUBAREA RUNOFF(CFS) = 3.01 SUMMED AREA(ACRES) = 4.60 TOTAL RUNOFF(CFS) = 5.20 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .36HALFSTREET FLOODWIDTH(FEET) = 13.64 FLOW VELOCITY(FEET/SEC.) = 3.06 DEPTH*VELOCITY = 1.11 1******************************************************************~********* FLOW PROCESS FROM NODE 622.00 TO NODE 622.00 IS CODE = 1 ---------------------------------------------------------------------------- I I I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF.CONCENTRATION(MIN.) = 25.18 RAINFALL INTENSITY(INCH/HR) = 1.43 TOTAL STREAM AREA(ACRES) = 4.60 PEAK FLOW RATE(CFS) AT CONFLUENCE = 5.20 I I I I 1***************************************************************************, * FLOW PROCESS FROM NODE 620.50 TO NODE 622.00 IS CODE = 2 ,F-7.L ------------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< I=========~;;~~~=~~~;~~~=;~;~~=~~~;~~==================================== DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 650.00 UPSTREAM ELEVATION = 1136.00 DOWNSTREAM ELEVATION = 1129.00 ELEVATION DIFFERENCE = 7.00 TC = .359*[( 650.00**3)/( 7.00)]**.2 = 11.859 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.170 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8319 SUBAREA RUNOFF(CFS) = 3.07 TOTAL AREA(ACRES) = 1.70 TOTAL RUNOFF(CFS) = 3.07 **************************************************************************** I FLOW PROCESS FROM NODE 622.00 TO NODE 622.00 IS CODE = 1 ------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< (pV I 1============================================================================ I I TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT TIME OF CONCENTRATION(MIN.) = 11.86 RAINFALL INTENSITY(INCH/HR) = 2.17 TOTAL STREAM AREA(ACRES) = 1.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = STREAM 2 ARE: 3.07 1******************************************************************'********** FLOW PROCESS FROM NODE 622.50 TO NODE 622.00 IS CODE = 2 P-6.L ---------------------------------------------------------------------------- I I I I I ==:::::~::~~~~=~~:~~~=:~:::~~=~~~~~~=~~~:~:~:::::======================== - ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1129.00 ELEVATION DIFFERENCE = 14.00 TC = .359*[( 850.00**3)/( 14.00)]**.2 = 12.127 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.143 SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8312 SUBAREA RUNOFF(CFS) = 4.10 TOTAL AREA(ACRES) = 2.30 TOTAL RUNOFF(CFS) = 4.10 I I I I ~ I I 1******************************************************************:********** FLOW PROCESS FROM NODE 622.00 TO NODE 622.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< I ============================================================================ TOTAL NUMBER OF STREAMS = 3 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MIN.) = 12.13 RAINFALL INTENSITY(INCH/HR) = 2.14 TOTAL STREAM AREA(ACRES) = 2.30 PEAK FLOW RATE(CFS) AT CONFLUENCE = 4.10 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 3 STREAMS. ** PEAK STREAM NUMBER 1 2 3 FLOW RATE RUNOFF (CFS) 9.53 9.64 9.97 TABLE ** TIME (MIN. ) 11. 86 12.13 25.18 INTENSITY ( INCH/HOUR) 2.170 2.143 1. 434 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 9.97 8.60 AS FOLLOWS: Tc(MIN.) = 25.18 1**************************************************************************** FLOW PROCESS FROM NODE 622.00 TO NODE 624.00 IS CODE = 6 P-7.~ I lD'O . I >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< F" 7,3 I. ============================================================================ I UPSTREAM ELEVATION = 1129.00 DOWNSTREAM ELEVATION = 1119" 00 I STREET LENGTH(FEET) = 350.00 CURB HEIGTH(INCHES) = 6. . , STREET HALFWIDTH(FEET) = 20.00 I I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = 18.00 INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = 10.53 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 AVERAGE FLOW VELOCITY(FEET/SEC.) = 3.64 PRODUCT OF DEPTH&VELOCITY = 1.25 STREETFLOW TRAVELTIME(MIN) = 1.60 TC(MIN) = 26.78 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.386 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8049 SUBAREA AREA(ACRES) = 1.00 SUBAREA RUNOFF(CFS) = 1.12 SUMMED AREA(ACRES) = 9.60 TOTAL RUNOFF(CFS) = 11.09 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 FLOW VELOCITY(FEET/SEC.) = 3.83 DEPTH*VELOCITY = 1.31 1"**************************************************************************** FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 ---------------------------------------------------------------------------- 1- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ==================================================================e========= TOTAL NUMBER OF STREAMS = 2 I CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 26.78 RAINFALL INTENSITY(INCH/HR) = 1.39 .. TOTAL STREAM AREA(ACRES) = 9.60 I PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.09 1******************************************************************~, ********* FLOW PROCESS FROM NODE 624.50 TO NODE 624.00 IS CODE = 2 F-B ------------------------------------------------------------------~--------- I >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM . DEVELOPMENT IS CONDOMINIUM 1- TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 .. INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1131.00 ." DOWNSTREAM ELEVATION = 1119.00 ELEVATION DIFFERENCE = 12.00 TC = .359*[( 1000.00**3)/( 12.00)]**.2 = 13.788 I 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.997 SOIL CLASSIFICATION IS "c" -, CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8273 I SUBAREA RUNOFF(CFS) = 11.07 ro~ 1 TOTAL AREA(ACRES) = 6.70 TOTAL RUNOFF(CFS) = 11.07 1**************************************************************************** FLOW PROCESS FROM NODE 624.00 TO NODE 624.00 IS CODE = 1 1------------------------------------------------------------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< - >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I I I I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = '13.79 RAINFALL INTENSITY(INCH/HR) = 2.00 TOTAL STREAM AREA(ACRES) = 6.70 PEAK FLOW RATE(CFS) AT CONFLUENCE = 11.07 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ** PEAK STREAM NUMBER 1 2 FLOW RATE RUNOFF (CFS) 16.78 18.77 TABLE ** TIME (MIN. ) 13.79 26.78 INTENSITY ( INCH/HOUR) 1. 997 1. 386 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA (ACRES) = ESTIMATES ARE = 18.77 16.30 AS FOLLOWS: Tc(MIN.) = 26.78 plckeJ...up ~y C.6, ff O~J 03 1******************************************************************~********* . FLOW PROCESS FROM NODE 620.50 TO NODE 620.00 IS CODE = 2 . F-l- ---------------------------------------------------------------------------- I I I I .- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< . ==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH FAIR COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1145.00 DOWNSTREAM ELEVATION = 1134.00 ELEVATION DIFFERENCE = 11.00 TC = .709*[( 1000.00**3)/( 11.00)]**.2 = 27.708 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.360 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .6248 SUBAREA RUNOFF(CFS) = 2.72 TOTAL AREA(ACRES) = 3.20 TOTAL RUNOFF(CFS) = 2.72 .- ******************************************************************~********* , FLOW PROCESS FROM NODE 620.00 TO NODE 622.00 IS CODE = 8 . p-7,1 I I I >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< I ==================================================================F========= 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.360 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 2.00 TOTAL AREA(ACRES) = 5.20 COEFFICIENT = .8037 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 2.19 4.91 plcl.dup by .t C.6, if OJ (;, I TC(MIN) = 27.71 1*****************************************************~********************** FLOW PROCESS FROM NODE 622.50 TO NODE 626.00 IS CODE = 8 F-? I:::::::~~~~~~~~:~~:~~~~~:~~:~~~~~~~:~~~~:~~~::::::::::::::::::~~~~~~~~~~ 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.360 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .6248 SUBAREA AREA(ACRES) = 4.40 SUBAREA RUNOFF(CFS) = TOTAL AREA(ACRES) = 9.60 TOTAL RUNOFF(CFS) = TC(MIN) = 27.71 I I 3.74 8.64 plc.kecll)p by tleU. Sc:>mp'O"t' 1**************************************************************************** _ FLOW PROCESS FROM NODE 622.50 TO NODE 636.00 IS CODE = 2 (-ID,I ------------------------------------------------------------------~--------- I I I I I >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==================================================================~========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1111.00 ELEVATION DIFFERENCE = 32.DO TC = .359*[( 850.00**3)/( 32.00)]**.2 = 10.279 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.348 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8360 SUBAREA RUNOFF(CFS) = 3.73 TOTAL AREA(ACRES) = 1.90 TOTAL RUNOFF(CFS) = 3.73 1******************************************************************~********* FLOW PROCESS FROM NODE 636.00 TO NODE 637.00 IS CODE = 6 ,(-10 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1============================================================================ - UPSTREAM ELEVATION = 1111.00 DOWNSTREAM ELEVATION = 1088.00 STREET LENGTH(FEET) = 970.00 CURB HEIGTH(INCHES) = 6>~' STREET HALFWIDTH(FEET) = 20.00 I I I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .36 HALFSTREET FLOODWIDTH(FEET) = 13.64 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 1.48 STREETFLOW TRAVELTIME(MIN) = 3.97 TC(MIN) = 6.94 4.08 14.25 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1. 962 (JD I I I SOIL CLASSIFICATION IS "c" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8263 SUBAREA AREA(ACRES) = 4.00 SUBAREA RUNOFF(CFS) = 6.48 SUMMED AREA(ACRES) = 5.90 TOTAL RUNOFF(CFS) = 10.21 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 15.95 FLOW VELOCITY(FEET/SEC.) = 4.47 DEPTH*VELOCITY = 1.80 plct:J.lJp by c.c" 'If 05 1**************************************************************************** FLOW PROCESS FROM NODE 429.00 TO NODE 616.00 IS CODE = 2 ,6-\ ------------------------------------------------------------------~--------- I" >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ==================================================================~--------- ASSUMED INITIAL SUBAREA UNIFORM , DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1144.00 DOWNSTREAM ELEVATION = 1113.00 ELEVATION DIFFERENCE = 31.00 TC = .303*[( 850.00**3)/( 31.00)]**.2 = 8.729 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.569 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8830 SUBAREA RUNOFF(CFS) = 3.63 TOTAL AREA(ACRES) = 1.60 I I 1 I TOTAL RUNOFF(CFS) = 3.63 1******************************************************************~********* -_:~~_:~~:~::_:~~~_~~~~___~~~:~~_:~_~~~~___~~~::~_::_:~~~_:___~__~:3:_~____ >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1==================================================================F========= UPSTREAM ELEVATION = 1143.00 DOWNSTREAM ELEVATION = 1080,0'0 STREET LENGTH (FEET) = 1300.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 44.00 I 1 1 1 I I I I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .020 OUTSIDE STREET CROSSFALL(DEClMAL) = .020 42.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 9.80 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 1.58 STREETFLOW TRAVELTIME(MIN) = 4.43 TC(MIN) = 5.27 4.89 13.16 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.049 SOIL CLASSIFICATION IS "c" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8796 SUBAREA AREA(ACRES) = 1.80 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 3.40 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .35 HALFSTREET FLOODWIDTH(FEET) = 11.13 FLOW VELOCITY(FEETjSEC.) = 5.07 DEPTH*VELOCITY = 1.77 3.24 6.87 (p<\. I I 1**************************************************************************** FLOW PROCESS FROM NODE 635.00 TO NODE 634.50 IS CODE = 8 . G-3 ---------------------------------------------------------------------------- , >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 1====~~~~~=~~~=~~;;~~~=~;;~;;~;~7~;~;;;~;;)=:==;~~;;=============~========= SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) = 1.70 TOTAL AREA(ACRES) = 5.10 TC(MIN) = 13.16 I I COEFFICIENT = .8796 SUBAREA RUNOFF(CFS) = TOTAL RUNOFF(CFS) = 3.06 9.94 **************************************************************************** I FLOW PROCESS FROM NODE 635.00 TO NODE 636.00 IS CODE = 2 F-/S,3 ------------------------------------------------------------------~--------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< I=========~;;~~;=~;~;~~~=;~~~~~=~;~;~;;==========================7========= , DEVELOPMENT IS CONDOMINIUM . I TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 620.00 UPSTREAM ELEVATION = 1120.25 DOWNSTREAM ELEVATION = 1111.00 I ELEVATION DIFFERENCE = 9.25 TC = .359*[( 620.00**3)/( 9.25)]**.2 = 10.903 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.273 SOIL CLASSIFICATION IS "C" I CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8343 SUBAREA RUNOFF(CFS) = 3.03 TOTAL AREA(ACRES) = 1.60 I TOTAL RUNOFF(CFS) = 3.03 . **************************************************************************** I FLOW PROCESS FROM NODE 636.00 TO NODE 637.00 IS CODE = 6 p-i5.1 ------------------------------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< : ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) I I I I I I 1111. 00 970.00 = 20.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1084.00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DEClMAL) = .017 18.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 11.33 AVERAGE FLOW VELOCITY (FEET/SEC. ) = PRODUCT OF DEPTH&VELOCITY = 1.23 STREETFLOW TRAVELTIME(MIN) = 4.25 TC(MIN) = 4.61 3.81 15.15 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" 1. 896 (p'& I 1 I I CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8244 SUBAREA AREA(ACRES) = 2.00 SUBAREA RUNOFF(CFS) = 3.13 SUMMED AREA(ACRES) = 3.60 TOTAL RUNOFF(CFS) = 6.16 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 FLOW VELOCITY(FEET/SEC.) = 4.26 DEPTH*VELOCITY = 1.46 ******************************************************************,********** I FLOW PROCESS FROM NODE 638.00 TO NODE 634.20 IS CODE = 6 F-If; ------------------------------------------------------------------~--------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1==================================================================~========= UPSTREAM ELEVATION = 1098.00 DOWNSTREAM ELEVATION = 1070,00 STREET LENGTH (FEET) = 1150.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 20.00 I 1 I I 1 I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DEClMAL) = .017 OUTSIDE STREET CROSSFALL(DECIMAL) = .017 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 18.00 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 12.48 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = 1.24 STREETFLOW TRAVELTIME(MIN) = 5.30 TC(MIN) = 10.45 3.61 20.45 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.607 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8145 SUBAREA AREA(ACRES) = 6.60 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 10.20 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .38 HALFSTREET FLOODWIDTH(FEET) = 14.80 FLOW VELOCITY(FEET/SEC.) = 3.73 DEPTH*VELOCITY = 1.43 8.64 14.80 i 11.0CFS Pd,eJ: ! Up by c.lb, ;} e.l 1******************************************************************~********* FLOW PROCESS FROM NODE 634.20 TO NODE 634.20 IS CODE = 2 f-IS,L I--:::::~;~~;~~-;;;;~~-~;~;~~~-;~;~~-~~~~;~;;;;;;--------------;--------- ==================================================================p========= I I I I I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 300.00 UPSTREAM ELEVATION = 1074.00 DOWNSTREAM ELEVATION = 1071.00 ELEVATION DIFFERENCE = 3.00 TC = .359*[( 300.00**3)/( 3.00)]**.2 = 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = SUBAREA RUNOFF(CFS) = 1.93 TOTAL AREA(ACRES) = .90 8.835 2.552 .8401 TOTAL RUNOFF(CFS) = 1. 93 pid;eJ.. "p by c,1:!l. iF j::i (po... I I **************************************************************************** I--:~~-:~~:~~~_:~~~-~~~~---~~~::~_:~-~~~~---~~~:~~_:~-:~~:-:---~------------ >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1 USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 20.45 RAIN INTENSITY(INCH/HOUR) = 1.61 FJDWby over croL0/\ TOTAL AREA(ACRES) = 1.93 TOTAL RUNOFF(CFS) = 2.80 -tro)'l"\. C,r." ift:.l 1 **************************************************************************** FLOW PROCESS FROM NODE 634.30 TO NODE 634.30 IS CODE = 1 I--:::::~~~~~;~;~-~;~~;~;~~;;-~;;~~-;~;-~~;;~~~;~~~~~~~--------------------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MIN.) = 20.45 RAINFALL INTENSITY(INCH/HR) = 1.61 TOTAL STREAM AREA (ACRES) = 1.93 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.80 1******************************************************************~********* FLOW PROCESS FROM NODE 634.50 TO NODE 634.30 IS CODE = 2 ' f-l~ 1_--------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I 1 1 I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 700.00 UPSTREAM ELEVATION = 1080.00 DOWNSTREAM ELEVATION = 1069.00 ELEVATION DIFFERENCE = 11.00 TC = .359*[( 700.00**3)/( 11.00)]**.2 = 11.327 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.226 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8332 SUBAREA RUNOFF(CFS) = 2.78 TOTAL AREA(ACRES) = 1.50 TOTAL RUNOFF(CFS) = 2.78 1******************************************************************~********* FLOW PROCESS FROM NODE 634.30 TO NODE 634.30 IS CODE = 1 1 I ,I I I >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ==================================================================~========= TOTAL NUMBER OF STREAMS = 2 CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MIN.) = 11.33 RAINFALL INTENSITY(INCH/HR) = 2.23 TOTAL STREAM AREA(ACRES) = 1.50 PEAK FLOW RATE(CFS) AT CONFLUENCE = 2.78 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO CONFLUENCE FORMULA USED FOR 2 STREAMS. ,,\0 " , 1 I I 1 **************************************************************************** I--~~~~~~~~;~~:~;;~~~~;~;~~~:~~;~;~~~~~~~~~~~~;~~-:~~~_:___:_~J:~~~~____ ** PEAK FLOW RATE STREAM RUNOFF NUMBER (CFS ) 1 4.33 2 4.81 TABLE ** TIME (MIN. ) 11.33 20.45 INTENSITY ( INCH/HOUR) 2.226 1. 608 COMPUTED CONFLUENCE PEAK FLOW RATE(CFS) TOTAL AREA(ACRES) = ESTIMATES ARE = 4.81 3.43 AS FOLLOWS: Tc (MIN.) = 20.45 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- I I 1 I ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS CONDOMINIUM TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 750.00 UPSTREAM ELEVATION = 1074.00 DOWNSTREAM ELEVATION = 1066.00 ELEVATION DIFFERENCE = 8.00 TC = .359*[( 750.00**3)/( 8.00)]**.2 = 12.582 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.100 SOIL CLASSIFICATION IS "C" CONDOMINIUM DEVELOPMENT RUNOFF COEFFICIENT = .8301 SUBAREA RUNOFF(CFS) = 2.79 TOTAL AREA (ACRES) = 1.60 TOTAL RUNOFF(CFS) = 2.79 I************************~*****************************************~********* FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 8 F-J~.t I--~~~~~~~~~;~~;-~;-~~;~~-;~-~~;~~;;-;;~~-;~;;;;;;----------------------- ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- , 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.100 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/2 ACRE LOT) RUNOFF COEFFICIENT = .7802 SUBAREA AREA(ACRES) = 5.90 SUBAREA RUNOFF(CFS) = 9.67 TOTAL AREA(ACRES) = 7.50 TOTAL RUNOFF(CFS) = 12.46 TC(MIN) = 12.58 1 I .--:- I I 1******************************************************************~********* FLOW PROCESS FROM NODE 640.00 TO NODE 640.00 IS CODE = 8 : F-JIf 5 olFsde. 1______------------------------------------------------------------;--------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< , ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.100 SOIL CLASSIFICATION IS "c" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8001 SUBAREA AREA(ACRES) = 1.10 SUBAREA RUNOFF(CFS) = TOTAL AREA(ACRES) = 8.60 TOTAL RUNOFF(CFS) = TC(MIN) = 12.58 1. 85 14.31 , 1**************************************************************************** I FLOW PROCESS FROM NODE 10.10 TO NODE 10.00 IS CODE = 2 5-1 ---------------------------------------------------------------------------- 1 l' I I 1 I 1 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 850.00 UPSTREAM ELEVATION = 1107.50 DOWNSTREAM ELEVATION = 1090.00 ELEVATION DIFFERENCE = 17.50 TC = .303*[( 850.00**3)/( 17.50)]**.2 = 9.787 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.412 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8821 SUBAREA RUNOFF(CFS) = 1.70 TOTAL AREA(ACRES) = .80 TOTAL RUNOFF(CFS) = 1.70 1**************************************************************************** FLOW PROCESS FROM NODE 10.10 TO NODE 10.00 IS CODE = 8 l 5-1.5 1______------------------------------------------------------------~--------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< . ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1 I 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.412 SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8105 SUBAREA AREA(ACRES) = 7.00 SUBAREA RUNOFF(CFS) = 13.68 TOTAL AREA(ACRES) = 7.80 TOTAL RUNOFF(CFS) = 15;39 TC(MIN) = 9.79 1******************************************************************~********* FLOW PROCESS FROM NODE 15.10 TO NODE 15.00 IS CODE = 85-3 ---------------------------------------------------------------------------- L >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< . =================================================================~========= 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.412 I SOIL CLASSIFICATION IS "C" SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8105 SUBAREA AREA(ACRES) = 2.40 SUBAREA RUNOFF(CFS) = I TOTAL AREA (ACRES) = 10.20 TOTAL RUNOFF(CFS) = TC(MIN) = 9.79 4.69 20.08 r*****************************************************************~********* FLOW PROCESS FROM NODE 15.00 TO NODE 20.00 IS CODE = 8 . 5-~ ---------------------------------------------------------------------------- 1= >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< : =========================================================================== 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.412 : SOIL CLASSIFICATION IS "C" 1 SINGLE-FAMILY(1/4 ACRE LOT) RUNOFF COEFFICIENT = .8105 SUBAREA AREA(ACRES) = 3.00 SUBAREA RUNOFF(CFS) = 5.86 TOTAL AREA(ACRES) = 13.20 TOTAL RUNOFF(CFS) = 25.94 1 TC(MIN) = 9.79 1**************************************************************************** FLOW PROCESS FROM NODE 10.00 TO NODE 20.00 IS CODE = 6 S-L ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< 1 1V 1==========================================================~=======~========= I I I I I I I I 1 UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1090.00 470.00 = 38.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6. 1080.00 DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 36.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. ' THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. , STREET FLOWDEPTH(FEET) = .57 HALFSTREET FLOODWIDTH(FEET) = 22.32 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 2.99 STREETFLOW TRAVELTIME(MIN) = 1.50 TC(MIN) = 11.29 26.63 5.22 10.00 YEAR RAINFALL INTENSITY(INCHjHOUR) = 2.230 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8809 SUBAREA AREA(ACRES) = .70 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 13.90 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .57 HALFSTREET FLOODWIDTH(FEET) = 22.32 FLOW VELOCITY(FEETjSEC.)= 5.36 DEPTH*VELOCITY = 3.07 1. 38 27.32 1******************************************************************~********* FLOW PROCESS FROM NODE 20.00 TO NODE 30.00 IS CODE = 6, 5-5 ---------------------------------------------------------------------------- I >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ' ==================================================================~========= UPSTREAM ELEVATION = 1080.00 DOWNSTREAM ELEVATION = 1070.0,0 STREET LENGTH(FEET) = 470.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 38.00 I I I I I I I DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK = INTERIOR STREET CROSSFALL(DECIMAL) = .020 OUTSIDE STREET CROSSFALL(DECIMAL) = .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 36.00 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. i , THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED. , STREET FLOWDEPTH(FEET) = .57 HALFSTREET FLOODWIDTH(FEET) = 22.32 AVERAGE FLOW VELOCITY(FEETjSEC.) = PRODUCT OF DEPTH&VELOCITY = 3.13 STREETFLOW TRAVELTIME(MIN) = 1.43 TC(MIN) = 12.72 27.87 5.47 1'? ,- II I I 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.088 SOIL CLASSIFICATION IS "c" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8799 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = 1.10 SUMMED AREA(ACRES) = 14.50 TOTAL RUNOFF(CFS) = 28.42 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .58 HALFSTREET FLOODWIDTH(FEET) = 22.89 FLOW VELOCITY(FEET/SEC.) = 5.31 DEPTH*VELOCITY = 3.10 1* *** ******** * * ********* * * * * * * * * * * * * ***** ************* ** * * * * * * * * * * *:* * * * * * * * * * FLOW PROCESS FROM NODE 10.20 TO NODE 25.00 IS CODE = 2 : S-b I--~~~~~~~~~;~~-;;~~~~-~;~~~~~-~~;~~-~~~;~~~~~~~~--------------~--------- ==================================================================F========= ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 620.00 UPSTREAM ELEVATION = 1090.00 DOWNSTREAM ELEVATION = 1077.00 ELEVATION DIFFERENCE = 13.00 TC = .303*[( 620.00**3)/( 13.00)]**.2 = 8.595 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2.591 SOIL CLASSIFICATION IS "c" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8831 SUBAREA RUNOFF(CFS) = 1.83 TOTAL AREA(ACRES) = .80 I I I I TOTAL RUNOFF(CFS) = 1. 83 1******************************************************************~********* FLOW PROCESS FROM NODE 25.00 TO NODE 30.00 IS CODE = 6 5-1- ------------------------------------------------------------------~--------- 1 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ 'UPSTREAM ELEVATION = 1077.00 DOWNSTREAM ELEVATION = 1070.00 STREET LENGTH(FEET) = 810.00 CURB HEIGTH(INCHES) = 6. STREET HALFWIDTH(FEET) = 38.00 I DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK = I INTERIOR STREET CROSSFALL(DEClMAL) = .020 OUTSIDE STREET CROSSFALL(DEClMAL) = .020 I I I I I I 36.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF = 1 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) = STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .32 HALFSTREET FLOODWIDTH(FEET) = 9.77 AVERAGE FLOW VELOCITY(FEET/SEC.) = PRODUCT OF DEPTH&VELOCITY = .70 STREETFLOW TRAVELTIME(MIN) = 6.20 TC(MIN) = 2.33 2.18 14.80 10.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 1.921 SOIL CLASSIFICATION IS "C" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8786 SUBAREA AREA(ACRES) = .60 SUBAREA RUNOFF(CFS) = SUMMED AREA(ACRES) = 1.40 TOTAL RUNOFF(CFS) = END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = .34 HALFSTREET FLOODWIDTH(FEET) = 1.01 2.84 10.91 1~ I I I I I I I I I I I I I I I I I I I FLOW VELOCITY(FEETjSEC.) = 2.17 DEPTH*VELOCITY = -----------------------------------------------------------------~---------- ---------------------------------------------------------------------------- .75 END OF STUDY SUMMARY: PEAK FLOW RATE(CFS) = TOTAL AREA (ACRES) = 2.84 1.40 TC(MIN.) = 14.80 END OF RATIONAL METHOD ANALYSIS ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ~ ------- , HYDROLOGY MAP 1G. ~ ' ' '" 5 ~ ~ ATCH BASIN DESIGN CALCULATIONS AND ~ GUTTER CAPACITY. 11 n~n ~~~, ~:::l:t 0'" z> ?Z"'''' ~~~ ~ 0.... g;~~ I I I I I I I I I I I I I I I I I I I HYDRAUL!C DESIGN, ON-GRADE CATCH BASIN Project: Po.lol11cL del Sol Trc..c.i 24136 - I Catch Basin Number: l- lO-year Discharqe (f~om Rational Method) (cfs): 13,C) lOO-year Discharge (from Rational Method) (cfs): ZQ,3 Carryover from C.B. NO. = (cfs):~ Total Design Discharge (cfs): lO,3 Flow Depth (ft): 0.60' Flow Oepih/OUn : 0,50 100 Street Slope: 1;00 '10 Use LACFCD Hydraulic Design Manual, Chart LL - r~ W = Zl I Discharge Intercepted (cfs): FrO Carryover to Downstream Point (cfs):3,3 Facility Receiving Carryover: C,0~:> 1'b I I I I I I I I I I I I I I I I I I -I HYDRAULIC DESIGN, ON-GRADE CATCH BASIN Project: Pa..lomo. del Sol Trcct 2.i/36-1 catch Basin Number: 2- lO-year Discharge (from Rational Method) (cfs): /3.0 lOO-year Discharge (from Rational Method) (cfs): W.'?:; Carryover from C.B. No. = (cfs): pf Total Design Discharge (cfs): 203 Flow Depth (ft): ().60' Flow Depih1o(f4): 0,50 IflO street Slope: /,00010 Use LACFCD Hydraulic Design Manual, Chart 1-1.. - J 3 w = 2/' Discharge Intercepted (cfs): /t,o Carryover to Downstream Point (cfs): 3,3 Facility Receiving Carryover: c., Ib,lt If 1/\ I I I I I I I I I I I I I I I I I I I HYDRAULIC DESIGN, ON-GRADE CATCH BASIN Project: PoJDf)\CL d.e~ SD I Catch Basin Number: '1f.3 lO-year Discharge (from Rational lOO-year Discharge (from Rational Carryover from C.B. No. "!tL Total Design Discharge (cfs): 9.0 Flow Depth (ft): O.3Q FLovJ D~PTjf, eM: 0,21- II'" , " Street Slope: l.O{flo Method) (cfs): 2.,6 Method} (cfs): 5:t = (cfs): 3"~ Use LACFCD Hydraulic Design Manual" Chart LJ".-/3 W = ll' Discharge Intercepted (cfs):9.0 Carryover to Downstream Point (cfs):~ Facility Receiving carryover:~ 'to I I I 1 I I I I I 1 I I I I 1 I I I I I HYDRAULIC DESIGN, ON-GRADE CATCH BASIN proj ect: Po.lolN:l del SD I "TrQC.t 2- Lt 1'36 - I Catch Basin Number: 'It If lO-year Discharge (from Rational Method) (cfs): 3,~ lOO-year Discharge (from Rational Method) (cfs): 5, 'OS Carryover from C.B. No. 1tz. = (cfs): 3:3 Total Design Discharge (cfs): 9,/5 Flow Depth (ft): O.3~' flow Oepih,o(H): O.~B 'DO street Slope: 6,5 "10 Use LACFCD Hydraulic Design Manual, Chart I_L. lif w = 28' Discharge Intercepted (cfs): 10.5 Carryover to Downstream Point (cfs):-& Facility Receiving Carryover:~ Q =- CW,SS d'S c = 3, j Z. 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