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Home My WebLink AboutParcel 1-2 & 6-7 Hydrology I I I I I I I I I I I I .1 I I I I I I z~1 PARCEL MAP ..2856i HYDROLOGYIHYDRAULIC REPORT 8/14/98 RECFI\lED AUG 25 1998 CITY O~ I tlVltCULA ENGINEERING DEPARTMENT Prepared For: WESTSIDE CITY II, LLe ~~ By: Hector L. Correa, RCE 36306 \ I I I I I a I I I I I . I I I I I 1 I PARCEL MAP 28567 HYDROLOGYIHYDRAULIC REPORT 8/14/98 Prepared For: WESTSIDE CITY II, LLe Prepared By: HLe 43533 Ridge Park Drive, Suite B Temecula, CA 92590 (909) 506-4869 By: Hector L. Correa, RCE 36306 2.- ,I I I , I CONTENTS I .1 DESCRIPTION SECTION I PM 28657 STORM DRAIN MASTER PLAN 1 I LINE-AlLINE-B HYDRAULIC CALCULATION 2 I LINE-A-l HYDRAULIC CALCULATION 3 LINE-C HYDRAULIC CALCULATION 4 I 100 YEAR HYDOLOGY 5 I 100 YEAR HYDROLOGY EXHIBIT 3 OF 3 POCKET f I i I I I I , t I "b I I I PM 28657 STORM DRAIN MASTER PLAN \ .. r"-. . STUDY AREA :.., Parcel Map 28657 property was initially a part of Assessment District No. 155 (AD 155) Master Drainage Area Plan. AD 155 outlined a network of proposed storm drain' improvement needed to protect development from flooding during the 100 year storm event. The purpose of this study is to determine master storm drain facilities required to protect the subject development from flooding during the 100 year storm event. ... ... EXISTING FLOODING CONDITIONS , .. .-: A portion of PM 28657 (parcels 1-2 & Parcels 6&7) is located within the Murrieta Creek 100 year floodplain as shown on FEMA Map, dated Nov. 20, 1996. In addition a portion of Parcels I & 6 are located within the mapped 100 year f1oodway. A Conditional Letter of Map Revision (CLOMR), dated June 1998 has been submitted to FEMA to remove the property from 100 year floodway. The development will be free from flooding by elevating the property above the 100 year flood elevation. .- I' .. On and off-site local storm runoff will be collected by a series of proposed storm drain as follows: , IL. LINE-A .,0, Line-A will convey the 100 year storm runoff via a combination underground pipe and open channel drainage facility to Murrieta Creek. The open earthen channel portion of Line A will be located within the City of Murrieta. -. LINE-A-I "'. Line A-I will convey the 100 year storm from the intersection ofDiaz and Winchester Road and discharge them into Murrieta Creek. ,:-! LINE-A-2 .... Line-A-2 is not a part of PM 28657 master plan but will be constructed by the future developer of Parcel 6 for local on-site storm discharge purposes. .< LINE-B .... I-I , "'-' A. 'L~98Z WdJo Jawon ApalsaMq1-IOU aqllll uO!lnaSJalU! v-au!! Ol anuaAV UOl2lU!W:l)lJO UO!l":lSJalll! aql wo.y a-all!'l llu!lSlXa pualXa 1l!M luawdolaAap g98Z Wd 'Z-~80VZ Wd JOJ pal"nJlSUOO 'p1l0)l JalsaqnU!1\\ U! a-au!! 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'" '" ~ * HZ ):I o 0 0 0 0 0 0 0 0 0 0* MO G} 0 0 0 0 : '" '" ~ I : ~ ~ o 0 0 0 0 0 0 0 0 0 o>l- ~ \0 0 0 0 0 Z o 0 0 0 0 0 0 0 0 0 0 ~ 0 0 0 0 0 ~I I I ~\ , I ,~ " , , , , , 1-- L , , ~ ~ ~ ~ - I ~ 1 Q!50 '- 40 30 20 10 ....., CA1e I-J sTA- 6(.}~ 11'-/ /0+-81 o=- 2.6' CJ,.-.s D= .35'4.3.3....:.(6' w S> 0.4% (!5%Malt.) 28 21 14 10 7 5 3.5 S~ Of4% 28 21 14 10 7 !5 3.5 _ c,.lS - ' .7 ,vtIN .lJJo::;.4 J 0.8 0.9 1.0 ;: '2. ~, .4-1. sS 0.4.,_ USr<:.. Q- 3.12Wo.85 01.5 Q - 3.02 WO.8 01.5 Q- Quantity (e.f...> Intercepted by catch ba.ln W- Width Cteet) of catch ba.ln apenlng O. Depth of flow (het) above normal gutter flow line S. Slope of Street Note: Information ba..d upon r..ult. of hydraulic model .tudl.. made by the Bureau of EngIneering. City of la. Angel.. (Ref. - Office Standard NO- 108) I INLET CAPACITY OF CATCH P~RTI ~I o 0.1 0.2 0.3 0.4 0.5 0.6 2.0 2- ,. 4. ,. 68 78 8. BASIN NO.9 CURB OPENING I NTF"Rr.FPTION ,0.... I I I I I I I 1 I I I I I I 1 I I 1- I ============================================================================ HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>~>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ---------------------------------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No, 106121 VER, 2.3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * WINCHESTER RD, AT STA 11+00 * * Q~2,86CFS * * * **************************************************************************** **************************************************************************** >>>>STREETFLOW MODEL INPUT INFORMATION<<<< ---------------------------------------------------------------------------- CONSTANT STREET GRADE (FEET/FEET) ~ ,012700 CONSTANT STREET FLOW (CFS) ~ 2,86 AVERAGE STREET FLOW FRICTION FACTOR (MANNING) CONSTANT SYMMETRICAL STREET HALF-WIDTH(FEET) = CONSTANT SYMMETRICAL STREET CROSSFALL(DEClMAL) CONSTANT SYMMETRICAL CURB HEIGTH(FEET) ~ ,67 CONSTANT SYMMETRICAL GUTTER-WIDTH (FEET) ~ 2,00 CONSTANT SYMMETRICAL GUTTER-LIP(FEET) = .03000 CONSTANT SYMMETRICAL GUTTER-HIKE (FEET) ~ .16700 FLOW ASSUMED TO FILL STREET ON ONE SIDE, AND THEN .015000 38.00 .020000 SPLITS ============================================================================ STREETFLOW MODEL RESULTS: ---------------------------------------------------------------------------- STREET FLOWDEPTH(FEET) ~ ,35 HALFSTREET FLOODWIDTH(FEET) = 9,59 AVERAGE FLOW VELOCITY(FEET/SEC,) 2,58 PRODUCT OF DEPTH&VELOCITY ~ ,90 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 1P I I I I I I , . I I I I I I I I i I I I I I L//YFl -,4 /11 J.I:P!: 4- 5-r/l D, = 60'1 J) /' // 2-:::: ,-=,,0' L = J + e. --1 ~ --t :2. 17 L. ~ 4:;6 L::: s:;;!J39 -'- 1.2. ; 2,17;:::: /0, 17 ;- - C - C1J-h + '2,'5 ....c 2,3+ 7,1 +1.,1 .:. B.70 - , - c-- C:::. c::l-!-b+ 1 = A I \ I:;: - 2-, -+- /10...... , 76 1-0 (L . (' u fZ- I ~ ,/ J p! Pli c_ =. CL-~ '0..;..1 c::;:.. Z- -\-4/,2':'1::: 7b 511-1 I ~ .sO + 6'1.7Q '" ~ I SIF 2::' 50-+ 7 '1' -/ 0 ~-o +- 7/.2 C //VT 8.::0 3 b // , 3('1 PIP-e.. I !3 ::::! 6 Z- 1,.\ I I i I I I I I I I I I I I I I I I I I I [/NE D, .:::. (0' J3 I"NT ~ 5' 6 -r 72.. D2.-::'- 6011 81:::.3 6" I( L::=- .,.{ + e.. +- t -I- ,3.17 L=. S--+,~CJ+- ,.2... +s.J7~ Jo.I? };.::. f3+h+'2i'5' E ~ :l. 3 So 2.. '1 -f z.S:::' fl. 70 C--:::::.. a..+ b.} I c-=- '2. -\- 4-.6 +1 ::::7.{, 6Tit I -= SC:-t'?2 + E-..:= 5' 1-6 (). 70 ~ L e:-/+70.S-J .5fk;::;" ..=:II,,", I -. :: ~b 1," - I -~ , ~ , , ~ ~ I- ~ ~ ~. ~ ~ I~ ~ il "-- -~ il ~ I 40 C 4- iC''+ ~.s I J-...) <S1/.t z.o~-o Q::: 7. 16 C+S 51 R-OuJ D::: . 4=-1 I D::;: . 4 J +- . 33 = . 7/ I Q50 r-. 30 o 0.1 Q. Quantity (c. f. IJ Int.rc.pt.d by catch balln w. Width (f.et) of catch balln opening D. D.pth of flaw (ft.t) abave normal gutt.r flaw IIn. S. Slop. of Str..t Not.: Information baud upon r..ultl of hydraulic model Itudl.. made by the Bureau of Engln.ering. City of LOI Angel.. (R.f. - Office Standard NO, 108 I 2.0 I INLET CAPACITY OF CATCH P.dRTI.d1 BASIN NO.9 CURB OPENING I NTF"Rr.FPTION , 1:!? I I I I I I I I I I, I I I I I I I I I **********DESCRIPTION OF RESULTS******************************************** * CATCH BASIN STA 20+50 * * WINCHESTER RD. Q~7,48 S = O. 0 30 **************************************************************************** CiS sr, 20+50 Fl c)W * * * >>>>STREETFLOW MODEL INPUT INFORMATION<<<< **************************************************************************** ---------------------------------------------------------------------------- CONSTANT STREET GRADE (FEET/FEET) ~ .030000 CONSTANT STREET FLOW (CFS) ~ 7.48 AVERAGE STREETFLOW FRICTION FACTOR(MANNING) CONSTANT SYMMETRICAL STREET HALF-WIDTH(FEET) ~ CONSTANT SYMMETRICAL STREET CROSSFALL(DECIMAL) CONSTANT SYMMETRICAL CURB HEIGTH(FEET) ~ .67 CONSTANT SYMMETRICAL GUTTER-WIDTH(FEET) ~ 2,00 CONSTANT SYMMETRICAL GUTTER-LIP(FEET) = .03000 CONSTANT SYMMETRICAL GUTTER-HIKE (FEET) ~ ,16700 FLOW ASSUMED TO FILL STREET ON ONE SIDE, AND THEN .015000 38,00 ,020000 STREET FLOW MODEL RESULTS: ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- SPLITS ---------------------------------------------------------------------------- STREET FLOWDEPTH(FEET) ~ .41 HALFSTREET FLOODWIDTH(FEET) = 12.41 AVERAGE FLOW VELOCITY(FEET/SEC,) ~ 4.33 PRODUCT OF DEPTH&VELOCITY ~ 1,76 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ~ .~ '. ,~ .~ ~ , , , ~ 1-'" - ~ ~. ~ ~ II t ~ il "--...--..... il' ~ I Q50 Cryrc. t-J. /64S.1 N SIA-- /<q+bZ, Q= 14-.34 c;f.s D= -47 I + . 23' =- .77' r-.. 40 I st. H.pv..J J) -= ,f 7 30 20 w S~ 0~4% 10 s> 0.4% (5%Max.) 28 21 14 10 7 5 3.5 v..J =- L1.: S.... .0.4-'. Oa 3.02 Wo,. 0". 28 21 \..pl't.. s> 0.4./. 5 3.5 Qa 3.12Wo... 0". O. QuantIty (c. f. IJ Intercepted by catch bal/n W- Width (flit) of catch balln opening D - Depth of flaw (flit) abave normal gutter flow line S a Slope of Stre.t Note: Information baud upon relultl of hydraulic model Itudlel made by the Bureau of Englnllring. City of LOI Angel.. (Ref. - Office Standard NO- lOB) / INLET CAPACITY OF CATCH P.dRTI.d1 o 0./ 2- 0.2 S- 0.3 48 0.4 S8 0.5 6- 0.6 7- a- o.a 0.9 '.0 2.0 BASIN NO.9 CURB OPENING I NTF'RC':F'PTION , -z.~ I I I I I I I I I I I I I I I I I I I ST, CE> FL d vJ L q +.c z ============================================================================ HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> ---------------------------------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No. 106121 VER, 2,3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * WINCHESTER RD, CATCH BASIN 19+62 ST. FLOW * * Q~14, 34 5 ^ 3 * * = UfO 00 * **************************************************************************** **************************************************************************** >>>>STREETFLOW MODEL INPUT INFORMATION<<<< CONSTANT STREET GRADE (FEET/FEET) = .030000 CONSTANT STREET FLOW (CFS) ~ 14.34 AVERAGE STREETFLOW FRICTION FACTOR (MANNING) CONSTANT SYMMETRICAL STREET HALF-WIDTH (FEET) = CONSTANT SYMMETRICAL STREET CROSS FALL (DECIMAL) CONSTANT SYMMETRICAL CURB HEIGTH(FEET) ~ ,67 CONSTANT SYMMETRICAL GUTTER-WIDTH (FEET) = 2.00 CONSTANT SYMMETRICAL GUTTER-LIP (FEET) ~ .03000 CONSTANT SYMMETRICAL GUTTER-HIKE (FEET) ~ .16700 FLOW ASSUMED TO FILL STREET ON ONE SIDE, AND THEN .015000 38,00 ,020000 SPLITS ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ ,47 HALFSTREET FLOODWIDTH(FEET) = 15,78 AVERAGE FLOW VELOCITY(FEET/SEC,) ~ 5,36 PRODUCT OF DEPTH&VELOCITY ~ 2,53 1,.r,. i I ! I II 'I I i i I I I I I. I I I I .1 I I I I STREET CAPACITY "l-'t I I, I I I I I I I I, I I I I ,I I, II I I STREET STD NO. 110- INDUSTRIAL COLLECTOR STREET AT S=O.0050 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No, 106121 VER, 2.3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> * STD, NO, 110 * S~O,005 'I I !5G '7~ * * * **************************************************************************** **************************************************************************** >>>>STREETFLOW MODEL INPUT INFORMATION<<<< CONSTANT STREET GRADE (FEET/FEET) ~ .005000 CONSTANT STREET FLOW (CFS) ~ 40,00 AVERAGE STREETFLOW FRICTION FACTOR (MANNING) CONSTANT SYMMETRICAL STREET HALF-WIDTH (FEET) ~ CONSTANT SYMMETRICAL STREET CROSSFALL(DECIMAL) CONSTANT SYMMETRICAL CURB HEIGTH(FEET) = .67 CONSTANT SYMMETRICAL GUTTER-WIDTH(FEET) ~ 2.00 CONSTANT SYMMETRICAL GUTTER-LIP (FEET) ~ ,03000 CONSTANT SYMMETRICAL GUTTER-HIKE (FEET) ~ .17000 FLOW ASSUMED TO FILL STREET EVENLY ON BOTH SIDES QM..". =- <t> C~S .015000 28,00 ,020000 ============================================================================ STREET FLOW MODEL RESULTS, NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL, THAT IS, ALL FLOW ALONG THE PARKWAY, ETC" IS NEGLECTED, STREET FLOWDEPTH(FEET) .68 HALFSTREET FLOODWIDTH(FEET) = 25.97 AVERAGE FLOW VELOCITY(FEET/SEC,) ~ 2,88 PRODUCT OF DEPTH&VELOCITY ~ 1.96 ============================================================================ 1,.,% I I I I I , I I I I~ I I I I I 'I I I I STREET STD NO. 110 INDUSTIAL COLLECTOR AT S=O.0050 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES) SERIAL No, 106121 VER, 2,3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * STD NO. 101 * : S=0.005 76'//00' : **************************************************************************** **************************************************************************** >>>>STREETFLOW MODEL INPUT INFORMATION<<<< CONSTANT STREET GRADE (FEET/FEET) = ,005000 CONSTANT STREET FLOW (CFS) = 50,00 AVERAGE STREETFLOW FRICTION FACTOR(MANNING) CONSTANT SYMMETRICAL STREET HALF-WIDTH(FEET) = CONSTANT SYMMETRICAL STREET CROSS FALL (DECIMAL) CONSTANT SYMMETRICAL CURB HEIGTH(FEET) = ,67 CONSTANT SYMMETRICAL GUTTER-WIDTH(FEET) = 2,00 CONSTANT SYMMETRICAL GUTTER-LIP(FEET) = ,03000 CONSTANT SYMMETRICAL GUTTER-HIKE (FEET) = .17000 FLOW ASSUMED TO FILL STREET EVENLY ON BOTH SIDES Q~ =- !:50 C~5 ,015000 38.00 .020000 ============================================================================ STREET FLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREET FLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL, THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED, STREET FLOWDEPTH(FEET) = ,72 HALFSTREET FLOODWIDTH(FEET) = 28.16 AVERAGE FLOW VELOCITY(FEET/SEC,) = 3,08 PRODUCT OF DEPTH&VELOCITY = 2,23 11\ I I I I I , I I I I, I I I I I I I I I I Page F-33 LEVEE CRITERIA Material and Structural Requirements Rip-Rap Levees (2:1 max. side slopes) (Ungrouted) .~ Rock SI2:e Levee Thickness - T FIl ter Velocities (050 Sin) Stra I ght Reach Curved Reach Thickness o - 7 t.p.s. 50 lb. (lO") IS-Inch 20-) nch 6-lnch - /' 7 - 9 t.p.s. 100 lb. (12") la-inch 21t-Inch 6-lnch 10 f.p.s. ISO lb. (IS") 23-lnch 30-lnch 9-lnch 11 f.p.s. 300 lb. (I a") 27-lnch 36-inch 9-lnch 12 f.p.s. 1/1t-ton (21") 32-lnch 42-inch 9-inch 13 f.p.s. 1/2- ton (27") 41-lnch Sit-I nch 12-inch 13 - 15 fop.s. I-ton (34") 51-Inch 6a-inch 12-inch 16 - 175 f.p.s. 2-ton (43") 65-lnch a6-lnch 12-ir.,~ 18 - 20 f.p.s. It-ton (54") 81-inch 108-lnch 12-lnch (Grouted) Can be used only with special District approval 16 - 20 f.p.s. 1- ton 04") 51-inch 6a-lnch 12-inch Gablon Levees (2:1 side slopes) Levee Thickness (Straight or WI re Gage Velocities Cu rved Reach) Rockflll of Baskets Apron Lengt~ 0-7 f.p.s. 12-lnch Baskets 4" - 8" 12 ga. 12 feet a - 10 f.p.s. la-inch Baskets 4" - 8" 11 ga. 18 feet 11 - IS f.p.s. 18-lnch Baskets 4" - a" 11 ga. 21 feet .-----. Gablon levees not permitted where velocities exceed IS f.p.s. Hyd. Man. ~ I I~ I I I I I I I r-- I- I, I , I I I I/"-' I I LEVEE CRITERIA Page F,..32 Cut-Off Depths Velocities Straight Reaches *Curved Reach o - 6 f.p.s. 6-ft. 9-ft. 6 - 10 f.p.s. 8-ft. 12-ft. 10 - IS f.p.s. 10-ft. IS-ft. 15 - 18 f.p.s. 12.5 ft. 18-ft. 18 - 20 f.p.s. 14 ft. 21-ft. *Check the cut off depth for curved reach on Chart F-06 on Page F -38 Use that depth If greater than given hereon. . 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'U HZ ,"0 '" " < ro '0 '" N " o o . . . . . . . . . . . . . . . . . 00000000000000000 00000000000000000 o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o - I ---- , - , , , ~ I~ l., , ~. , ~ ~ ~ - I ~ I ~" Q50 ". R€\V\I N E7ToN AVfl-. CB S,A 2--7+0 0 D -::.. 5-r FL.ouJ + Jfll D= O. f5 I -+ ..3S:= J./3 D 0.1 st. FL uvv; 6. f5 ' 30 20 2. ~ 0.2 W 3- S}0.4% S~~ 0~4% 10 (5%Mal.) 0.3 , 28 4- 21 28 21 14 0.4 5- 14 10 , .... 7 10 .... 0.5 6- . ..... 4..- 7 ". ~ 5 ....." 7- 5~/ 0.6 3.5 , " ," 3.5 " .... 0.7 , ...... S> 0.4.... < ~.. S.0.4.,. Q- 3.02 Wo.. 01.5 0.9 Q_ 3.12Wo.85 Of.5 .0 Q" Quantity (e."a.) Intercepted by catch baaln W" Width (flit) of catch ba.ln opening 0" Oepth of flow (het) above normal gutter flow line S - Slope of Street Note: Information baud upon rllulf. of hydraulic model .tudl.. made by the Bureau of Engineering. City of La. Angelll (Ref. - Office Standard NO- 108) 2.0 I INLET CAPACITY OF CATCH paRTial BASIN NO.9 CURB OPENING I NTFRr.FPTION , ~ I (========================================================================== HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ---------------------------------------------------------------------------- - --------------------------------------------------------------------------- It<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] I Especially prepared for: NESTE, BRUDIN & STONE, INC. 11<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 11----------------------------------------------------------------------~--- <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I Advanced Engineering Software [AES] SERIAL No, 106121 - VER. 2,3C RELEASE DATE: 2/20/86 11<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> II********DESCRIPTION OF RESULTS******************************************** * REMINGTON AVE, AT STA 27+00 S=O,0096 5TAI~fLT "FLOw * IQMAX.87,33 : 0, ~************************************************************************* 1************************************************************************** >>STREETFLOW MODEL INPUT INFORMATION<<<< ---------------------------------------------------------------------------- I I I CONSTANT STREET GRADE (FEET/FEET) = CONSTANT STREET FLOW(CFS) = 87,33 AVERAGE STREETFLOW FRICTION FACTOR(MANNING) = CONSTANT SYMMETRICAL STREET HALF-WIDTH(FEET) = CONSTANT SYMMETRICAL STREET CROSSFALL(DECIMAL) = CONSTANT SYMMETRICAL CURB HEIGTH(FEET) = .67 CONSTANT SYMMETRICAL GUTTER-WIDTH(FEET) = 2,00 CONSTANT SYMMETRICAL GUTTER-LIP(FEET) = ,03000 CONSTANT SYMMETRICAL GUTTER-HIKE(FEET) = .16700 FLOW ASSUMED TO FILL STREET EVENLY ON BOTH SIDES I***STREET FLOWING FULL*** ,009600 .018000 28,00 ,020000 1========================================================================== STREETFLOW MODEL RESULTS: ---------------------------------------------------------------------------- NOTE: STREETFLOW EXCEEDS TOP OF CURB, THE FOLLOWING STREETFLOW RESULTS ARE THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THAT IS, ALL FLOW ALONG THE PARKWAY, I I I BASED ON THE ASSUMPTION THE STREET CHANNEL, ETC" IS NEGLECTED. STREET FLOWDEPTH(FEET) = .80 HALFSTREET FLOODWIDTH(FEET) = 28.00 AVERAGE FLOW VELOCITY(FEET/SEC,) = PRODUCT OF DEPTH&VELOCITY = 3,35 sT. r-l OvJ 4,16 ~ I 1../'-..._ I I I I I I I /"- I I I I I I I, I/~ I I in <lJ '" I CD ci z <i 0 .J - 0 ii0 N ~0 I N ci Z o oj '" U <i ..J "n. ... c. ... ~.. ..II 0 '" .. o. .- .... - z% " ",0 .. ..!; .. o .. . !+ :: :.., ; ai! c lico ~ .1-& ~ 3a 0 CUT REINFORCING STEEL {r TO CLEAR FACE PLATE, C~'ftlt .!L!,W_ , ..' il ., /- R . "'~ f,. ... " ....... 8,a o . '",,, .. - "I! '" 0 '" .. , :,~ ~'!! , -- .I/.IIR ~I vII STIRRUP WELD AS SHOWN, I 4 4 :. "d;' "d. . . ~ J' ~" . "",' "CO" "~ -.<1, . 1/- I............ 1:4- a" II +1 j ~."~;C- I ~." HOLE IN PLATE ADJUSTING NUTS TO BE TIGHTENED a SECURED IN PLACE WHEN STEEL PLATE ANGLE IS PROPERLY POS,ITlONED. ." 00 ,A " , " ,4 ~_.~. 4.' . 4 "'~ -4 ' .,' "': , .,., . '. . "0 A ..\...: . .: <I. . A " . .. '. . '. ',4','4 4. ,-<1 T <I , 4, " " 4' " .. ,A , " . ~ - : 4: 4.' . d.": . ,q., o NOTES FACE PLATE 5/~' X 10" IfOLLED PLATE (ASTN AHI FORMED AS SHOWN, FACE PLATE ANCHORAGE 'tl"" STEEL ANCHOR 42" OC MAX. PLACED AS SHOWN, PROTECTION BAR A PLAIN ROUND STEEL BAR ," OIl.. SHALL BE INSTALLED, BAR SHALL BE EMBEDDED l!I 5 INCHES AT EACH END'(~E~fN~'i"XCE""g.We'lEN CATCH BASIN) SUPPORT BAR I INCH DIA. II 20" LONG WITH SQ, HEAD AND HEIC. NUTS, BEND AS SHOWN. SPACING SHALL NOT EXCEED 4 FEET, ALL EXPOSED METAL PARTS SHALL BE GALVANIZED', 5 RU'.SIOIU .'VUIIO' COONTY PlOOD COfII'tol "." WA... CONn.VAllO" PinlflIC'f APPiiOWlD .,.: (;'-4~-:?y7<~,~ .J Ie" ._....; ~-{? ..u .1[, /1_:;7- rl ptlOna .._n, DETAIL OF CATCH SA,SIN OPENING INtA..., .0. CHANG -72 _0", I)"'"""'" ~IT"O. ... Ot:SC".PTIOl'l STANOlI\RD DRAWING NUMBER CBI05 aPf'tlOlTlotlu",,,, A.,'? I I I ~ I I, t " i I I I~ Q50 ~ , 1'-./' I REM/I\Ih-jO N Av~ ..$/4, "2- ? + 7 z... 0 (. W-;.. 2. I / s - o. DOS-- 0":::. sr. KCl'-'J -r <1'/ D:=. .75 -r .~3 ::: I . 0 (, 30 20 ~\ ~ Q 90 / ~\ ~ '-.; ~ .. ~ '6' 'J' ('-6> o 0./ 2- 0.2 3- 0.3 4- 0.4 5- 0.5 6- 0.6 7- 0.7 8- 2.0 I INLET CAPACITY OF CATCH BASIN NO.9 CURB OPENING !A. PARTIAL INTERCEPTION P<'V w 10 4., ~ <='/. s> ,4"4 (5 Max,) .y "0 2 ~ 21 14 S~~ 0~4"4 10 7 5 3.5 5 3.5 S> 0.4"1. S~ 0.48J. Q" 3.12Wo,,, DI.' Q- 3.02WoO D" O' Quantity (c.f...) intlrceptld by catch balln W' Width (flIt) of catch ba.ln opIning D · Dlpth of flow (fut) above normal guttlr flow IInl S. SlopI of Street Note: Information band upon r..ult. of hydraulic mod.1 .tudl.. modI by thl Buraau of Englnlering. City 0' LOI Angel.. (Ref. - Office Standard NO. lOB) iH_~... '\ ~ ^,..~~ I ~========================================================================== . HYDRAULIC ELEMENTS - I PROGRAM PACKAGE ;========================================================================= Il<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> II I (C) Copyright 1982,1986 Advanced Engineering Software [AES] Especially prepared for: NESTE, BRUDIN & STONE, INC. Ii<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 11---------------------_____________________________________________________ 1<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] ~ SERIAL No, I0612I I VER. 2,3C RELEASE DATE: 2/20/86 ~<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I **********DESCRIPTION OF RESULTS******************************************** IIREMINGTON AVE, CB STA 27+72.06 : * * 1j************************************************************************** 11************************************************************************** !I I II >>>>STREETFLOW MODEL INPUT INFORMATION<<<< II--~;~~;~-~;~~~;-;~~(;~~;/;~~;)-:--~~~~~~~----------------------------- CONSTANT STREET FLOW(CFS) = 36,83 AVERAGE STREETFLOW FRICTION FACTOR(MANNING) = CONSTANT SYMMETRICAL STREET HALF-WIDTH(FEET) = CONSTANT SYMMETRICAL STREET CROSSFALL(DECIMAL) = CONSTANT SYMMETRICAL CURB HEIGTH(FEET) = ,67 CONSTANT SYMMETRICAL GUTTER-WIDTH(FEET) = 2.00 CONSTANT SYMMETRICAL GUTTER-LIP(FEET) = ,03000 CONSTANT SYMMETRICAL GUTTER-HIKE(FEET) = .16700 FLOW ASSUMED TO FILL STREET ON ONE SIDE, AND THEN SPLITS ,022000 28,00 ,020000 ***STREET FLOWING FULL*** 11========================================================================== STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .73 HALFSTREET FLOODWIDTH(FEET) = 28,00 AVERAGE FLOW VELOCITY(FEET/SEC,) = 2.22 ~.s I I -"'.. I I I I I I I I i I I I I I I I I I SECTION 5 100 YEAR HYDROLOGY Afp I I I I I I I I I I I I I I. II ; I I I I LINE -A LINE-A-l LINE-A-2 100 YEAR HYDROLOGY A.'" I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Page 1 ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL ============================================================================ <<<<<<<<<<<<<<<<<~<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (CI Copyright 1982,1986 Advanced Engineering Software [AES] <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * LINE B AND LINE A 100 YEAR STORM * * 8/15/98 * * AREA-B,DAT, B-728,TXT * **************************************************************************** ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT (YEAR) ~ 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) ~ 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE FgR FRICTION SLOPE .90 10-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) ~ 2.360 10-YEAR STORM 60-MINUTE INTENSITY(INCH/HOUR) ~ ,880 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 3.480 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) 1,300 SLOPE OF 10-YEAR INTENSITY-DURATION CURVE ~ .5505732 SLOPE OF 100-YEAR INTENSITY-DURATION CURVE ~ .5495536 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT ~ 100,00 1-HOUR INTENSITY (INCH/HOUR) ~ 1.3000 SLOPE OF INTENSITY DURATION CURVE ~ .5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL.No. I00971 VER. 3.3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **************************************************************************** FLOW PROCESS FROM NODE 205,00 TO NODE 204.00 IS COD~ = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL'SUBAREA FLOW-LENGTH = 920,00 UPSTREAM ELEVATION = 1280,00 DOWNSTREAM ELEVATION = 1152,00 ELEVATION DIFFERENCE = 128,00 TC ~ .937*[( 920,00**3)/( 128.00)J**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT SUBAREA RUNOFF(CFS) ~ 13,47 COVER 21. 318 2,296 ,7540 p,fO I I, I I I I I I I I, 1 I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Page 2 TOTAL AREA (ACRES) 7.78 TOTAL RUNOFF(CFS) 13.47 **************************************************************************** FLOW PROCESS FROM NODE 204.00 TO NODE 208,00 IS CODE = 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1152.00 450.00 = 32,00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 6, 1122,00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK 30,00 INTERIOR STREET CROSSFALL(DEClMAL) ,020 OUTSIDE STREET CROSS FALL (DECIMAL) .020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 1 **TRAVELTlME COMPUTED USING MEAN FLOW(CFS) 13,47 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .40 HALFSTREET FLOODWIDTH(FEET) = 13.72 AVERAGE FLOW VELOCITY(FEET/SEC,) = 6,73 PRODUCT OF DEPTH&VELOCITY = 2.70 STREETFLOW TRAVELTIME (MIN) = 1.11 TC(MIN) 22.43 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2,232 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8713 SUBAREA AREA(ACRES) = .00 SUBAREA RUNOFF (CFS) SUMMED AREA (ACRES) = 7.78 TOTAL RUNOFF(CFS) END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ~ .40 HALFSTREET FLOODWIDTH(FEET) 13.72 FLOW VELOCITY(FEET/SEC.) = 6.73 DEPTH*VELOCITY = 2,70 .00 13,47 **************************************************************************** FLOW PROCESS FROM NODE 204.00 TO NODE 208.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 22,43 RAINFALL INTENSITY (INCH,/HOUR) ~ 2,23 TOTAL STREAM AREA (ACRES) = 7.78 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 13,47 **************************************************************************** FLOW PROCESS FROM NODE 36.10 TO NODE 36.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 500,00 UPSTREAM ELEVATION = 1750,00 DOWNSTREAM ELEVATION = 1500,00 ELEVATION DIFFERENCE = 250,00 TC = .937*[( 500.00**3)/( 250.00)]**.2 12,934 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3,021 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7846 SUBAREA RUNOFF(CFS) 8,06 TOTAL AREA(ACRES) = 3,40 TOTAL RUNOFF(CFS) 8.06 1>.0... I I I 1 I I I I I I I I I I I I I I I I' I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Pa~e 3 **************************************************************************** FLOW PROCESS FROM NODE 36.00 TO NODE 37.00 IS CODE ~ 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION = 1500.00 DOWNSTREAM NODE ELEVATION ~ 1400.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 350.00 CHANNEL BASE (FEET) ~ 10,00 "Z" FACTOR ~ 2.000 MANNINGS FACTOR = .035 MAXIMUM DEPTH(FEET) 2.00 CHANNEL FLOW THRU SUBAREA(CFS) ~ 8.06 FLOW VELOCITY (FEET/SEC) = 5,57 FLOW DEPTH(FEET) ,14 TRAVEL TIME (MIN.) = 1.05 TC(MIN.) ~ 13.98 **************************************************************************** FLOW PROCESS FROM NODE 36,00 TO NODE 37,00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.895 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7802 SUBAREA AREA(ACRES) 4,70 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 8.10 TOTAL RUNOFF(CFS) ~ TC(MIN) ~ 13,98 10.62 18,67 **************************************************************************** FLOW PROCESS FROM NODE 37.00 TO NODE 38.00 IS CODE ~ 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ----------------------~----------------------------------------------------- -------------------------------------------------------~-------~------------ UPSTREAM NODE ELEVATION = 1400.00 DOWNSTREAM NODE ELEVATION ~ 1310.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 430,00 CHANNEL BASE (FEET) ~ 10,00 "Z" FACTOR = MANNINGS FACTOR ~ ,035 MAXIMUM DEPTH(FEET) CHANNEL FLOW THRU SUBAREA(CFS) ~ 18,67 FLOW VELOCITY (FEET/SEC) ~ 7.61 FLOW DEPTH(FEET) TRAVEL TlME(MIN,) = .94 TC(MIN,) = 14.92 2.000 2.00 ,23 **************************************************************************** FLOW PROCESS FROM NODE 37,00 TO NODE 38.00 IS CODE ~ 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2,793 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7764 SUBAREA AREA(ACRES) 4.80 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 12.90 TOTAL RUNOFF(CFS) = TC (MIN) = 14,92 10,41 29,08 **************************************************************************** FLOW PROCESS FROM NODE 38,00 TO NODE 39,00 IS CODE = 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ -50 I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa2e 4 UPSTREAM NODE ELEVATION 1310.00 DOWNSTREAM NODE ELEVATION 1260,00 CHANNEL LENGTH THRU SUBAREA(FEET) = 350.00 CHANNEL' BASE (FEET) = 10,00 "Z" FACTOR = 2,000 MANNINGS FACTOR = ,035 MAXIMUM DEPTH(FEET) 2.00 CHANNEL FLOW THRU SUBAREA (CFS) = 29.08 FLOW VELOCITY (FEET/SEC) = 7.55 FLOW DEPTH(FEET) TRAVEL TIME(MIN,) = .77 TC(MIN.) = 15.69 ,36 **************************************************************************** FLOW PROCESS FROM NODE 38,00 TO NODE 39,00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.716 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7735 SUBAREA AREA(ACRES) 3,60 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 16.50 TOTAL RUNOFF (CFS) = TC(MIN) = 15,69 7.56 36.65 **************************************************************************** FLOW PROCESS FROM NODE 39.00 TO NODE 208.00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1260.00 DOWNSTREAM NODE ELEVATION = 1122,00 CHANNEL LENGTH THRU SUBAREA (FEET) = 700.00 CHANNEL BASE (FEET) = 10.00 "Zit FACTOR = 2.000 MANNINGS FACTOR = .035 MAXIMUM DEPTH(FEET) 2,00 CHANNEL FLOW THRU SUBAREA(CFS) = 36,65 FLOW VELOCITY (FEET/SEC) = 9,51 FLOW DEPTH(FEET) ,36 TRAVEL TIME (MIN.) = 1,23 TC(MIN,) = 16.92 **************************************************************************** FLOW PROCESS FROM NODE 39.00 TO NODE 208,00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2,606 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7689 SUBAREA AREA (ACRES) 6.20 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 22.70 TOTAL RUNOFF(CFS) = TC(MIN) = 16.92 12,43 49,07 **************************************************************************** FLOW PROCESS FROM NODE 208.00 TO NODE 208.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MlNUTES) = 16,92 RAINFALL INTENSITY (IN~H./HOUR) = 2.61 TOTAL STREAM AREA (ACRES) = 22.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 49.07 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY ~\ I I, I I I I I I I I I I I II I I I I' I PM28657 LINE BAND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa~e 5 NUMBER (CFS) (MIN,) (INCH/HOUR) 1 2 13.47 49,07 2.232 2.606 22.43 16.92 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 55.50 59,23 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 59.23 TIME (MINUTES) 16.921 TOTAL AREA(ACRES) = 30,48 sT-t,zT oF- "hJT"'1L>(. '-"Joe. A, **************************************************************************** FLOW PROCESS FROM NODE 208,00 TO NODE 3 209,00 IS CODE ~ >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 27.0 INCH PIPE IS 17.8 INCHES PIPEFLOW VELOCITY(FEET/SEC,) ~ 21.3 UPSTREAM NODE ELEVATION = 1122.00 DOWNSTREAM NODE ELEVATION = 1057,00 FLOWLENGTH(FEET) ~ 950.00 MANNINGS N ,013 ESTIMATED PIPE DIAMETER (INCH) 27,00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 59.23 TRAVEL TIME(MIN,) = .74 TC(MIN.) 17.66 **************************************************************************** FLOW PROCESS FROM NODE 208,00 TO NODE 8 209.00 IS CODE = >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 2,546 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8738 SUBAREA AREA(ACRES) 2.51 SUBAREA RUNOFF(CFS) 5,58 TOTAL AREA(ACRES) 32,99 TOTAL RUNOFF(CFS) ~ 64.81 TC(MIN) ~ 17.66 **************************************************************************** FLOW PROCESS FROM NODE 208.00 TO NODE 209.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- --------------------------------------------------------~------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 17,66 RAINFALL INTENSITY (INCH./HOUR) = 2,55 TOTAL STREAM AREA (ACRES) ~ 32.99 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 64.81 - LI,ve -A F L c.>-v ". T W ""i~ Ifl'C-sr.<<. **************************************************************************** FLOW PROCESS FROM NODE 207,00 TO NODE 206,00 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- -----------------------------------------------~---------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)] **,2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION ~ 1144.00 DOWNSTREAM ELEVATION = 1067.00 INT. R..j) ~'V- I I, I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Pa~e 6 ELEVATION DIFFERENCE 77,00 TC = ,303*[( 1000,00**3)/( 77.00)J**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLAsSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8811 SUBAREA RUNOFF(CFS) 8,86 TOTAL AREA(ACRES) = 2,56 8,022 3.928 TOTAL RUNOFF(CFS) 8,86 **************************************************************************** FLOW PROCESS FROM NODE 207,00 TO NODE 206.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MlNUTES) = 8,02 RAINFALL INTENSITY (INCH./HOUR) = 3,93 TOTAL STREAM AREA (ACRES) = 2.56 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 8.86 Fv"T"<ll. c.. IS 4T / '" r. "'" , "Ie: UMi"u Po!) **************************************************************************** FLOW PROCESS FROM NODE 206.00 TO NODE 206,00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 22.98 RAIN INTENSITY{INCH/HOUR) = 2.20 TOTAL AREA{ACRES) = 163,28 TOTAL RUNOFF{CFS) = 270,37 **************************************************************************** FLOW PROCESS FROM NODE 206,00 TO NODE 206,00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) = 22.98 RAINFALL INTENSITY (INCH./HOUR) = 2,20 TOTAL STREAM AREA (ACRES) = 163,28 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 270.37 **************************************************************************** FLOW PROCESS FROM NODE 213,20 TO NODE 213,10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**,2 INITIAL SUBAREA FLOW-LENGTH = 600.00 UPSTREAM ELEVATION ~ 1080,00 DOWNSTREAM ELEVATION = 1067,00 ELEVATION DIFFERENCE = 13,00 TC = ,303*[( 600,00**3)/( 13.00)J**.2 100,00 YEAR RAINFALL INTENSITY{INCH/HOUR) SOIL CLASSIFICATION IS "BIf COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8806 SUBAREA RUNOFF(CFS) 2.86 TOTAL AREA(ACRES) = ,85 8,427 3.823 TOTAL RUNOFF(CFS) 2,86 5T i-V>V **************************************************************************** FLOW PROCESS FROM NODE 213,20 TO NODE 213,10 IS CODE = 1 ---------------------------------------------------------------------------- -5'7 I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa/(e7 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION (MINUTES) ~ 8.43 RAINFALL INTENSITY (INCH./HOUR) = 3.82 TOTAL STREAM AREA (ACRES) ~ .85 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 2,86 **************************************************************************** FLOW PROCESS FROM NODE 213.10 TO NODE 213,00 IS CODE = 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 60.0 INCH PIPE IS 3.7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 5.7 UPSTREAM NODE ELEVATION ~ 1061,00 DOWNSTREAM NODE ELEVATION ~ 1042.00 FLOWLENGTH(FEET) = 800,00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 60,00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) 2.86 TRAVEL TlME(MIN,) ~ 2,33 TC(MIN.) = 10,76 1 **************************************************************************** FLOW PROCESS FROM NODE 213 ,10 TO NODE 213,00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 7,39 TOTAL AREA(ACRES) 8,24 TC(MIN) ~ 10,76 3.342 COEFFICIENT ~ ,8785 SUBAREA RUNOFF(CFS) TOTAL RUNOFF(CFS) ~ 21. 70 24.56 **************************************************************************** FLOW PROCESS FROM NODE 209.10 TO NODE 209.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 350,00 UPSTREAM ELEVATION ~ 1085,00 DOWNSTREAM ELEVATION = 1067.00 ELEVATION DIFFERENCE = 18.00 TC ~ .303*[( 350,00**3)/( 18,00))**,2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8837 SUBAREA RUNOFF(CFS) 3,76 TOTAL AREA (ACRES) ~ .90 5,714 4.733 TOTAL RUNOFF(CFS) 3,76 **************************************************************************** FLOW PROCESS FROM NODE 209.10 TO NODE 209,00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 5 ARE: TIME OF CONCENTRATION (MINUTES) = 5,71 5A. I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Pa2e 8 RAINFALL INTENSITY (INCH,/HOUR) = 4.73 TOTAL STREAM AREA (ACRES) ~ ,90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 3.76 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN. ) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- fv~A4. l.......-"I - I"-..........l t& ~I",lte. /,0 ~:)0' ~v ,].76 c.-+s ,...->. Q F=lc>-v..$ TO ,,(PIL:L C B ~. T STA 415-<- '2:> 0 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO f=""jIJ,q,( t.. ......-4 FORMULA (RCFC&WCD) USED FOR 5 STREAMS, AD"S' Q 3~4 C,,? ?':lo1 $7 VARIOUS CONFLUENCED RUNOFF VALUES ARE AJ3 FOLLOWS: ::. ~ oD.;> - <-{'~. 282.30 138.53 334.83 144.60 100.22 = ~f.f.' c.~.5 - .3.71: __ ~O. ;::l:) COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 334.83 TIME (MINUTES) 22.980 Q LI.M.t. 1+.... '334,GJc..!.s TOTAL AREA(ACRES) ~ 200,58 1 2 3 4 5 64,81 8.86 270.37 2,86 3.76 2.546 3,928 2.203 3.823 4,733 17.66 8,02 22,98 8.43 5.71 **************************************************************************** FLOW PROCESS FROM NODE 206,00 TO NODE 213,00 IS CODE ~ 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- -----------------------------------------------------~~--------------------- DEPTH OF FLOW IN 66.0 INCH PIPE IS 39.4 INCHES PIPEFLOW VELOCITY (FEET/SEC.) ~ 22.6 UPSTREAM NODE ELEVATION ~ 1057,00 DOWNSTREAM NODE ELEVATION = 1034.00 FLOWLENGTH(FEET) = 925.00 MANNINGS N ~ ,013 GIVEN PIPE DIAMETER (INCH) = 66,00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) 334,83 TRAVEL TIME(MIN,) ~ .68 TC(MIN.) ~ 23,66 1 **************************************************************************** FLOW PROCESS FROM NODE 206.00 TO NODE 213,00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 7.60 TOTAL AREA(ACRES) 208.18 TC(MIN) ~ 23.66 2,168 COEFFICIENT = .8707 SUBAREA RUNOFF(CFS) 14,34 TOTAL RUNOFF (CFS) = 349.17~ ~f'( '1 OJ' C Is srI. IC,;'-~ 2- **************************************************************************** FLOW PROCESS FROM NODE 213,00 TO NODE 211,00 IS CODE ~ 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 66.0 INCH PIPE IS 41.0 INCHES PIPE FLOW VELOCITY(FEET/SEC.) = 22.5 UPSTREAM NODE ELEVATION ~ 1037.00 DOWNSTREAM NODE ELEVATION = 1034.00 FLOWLENGTH(FEET) = 125.00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 66.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) ~ 349.17 fft I I I I II I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Pa2e 9 TRAVEL TIME (MIN. ) ,09 TC(MIN, ) 23,75 **************************************************************************** FLOW PROCESS FROM NODE 213.00 TO NODE 211.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) ~ 23.75 RAINFALL INTENSITY (INCH,/HOUR) ~ 2,16 TOTAL STREAM AREA (ACRES) = 208.18 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 349.17 **************************************************************************** FLOW PROCESS FROM NODE 209.00 TO NODE 211.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION ~ 1067.00 DOWNSTREAM ELEVATION = 1046,00 ELEVATION DIFFERENCE = 21.00 TC = ,303*[( 1000.00**3)/( 21.00)]**,2 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8788 SUBAREA RUNOFF(CFS) 7,48 TOTAL AREA (ACRES) ~ 2.50 10,403 3,405 TOTAL RUNOFF(CFS) 7,48 **************************************************************************** FLOW PROCESS FROM NODE 209,00 TO NODE 211.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 10,40 RAINFALL INTENSITY (INCH,/HOUR) ~ 3,41 TOTAL STREAM AREA (ACRES) = 2,50 TOTAL STREAM RUNOFF{CFS) AT CONFLUENCE ~ 7,48 CONFLUENCE INFORMATION, STREAM RUNOFF TIME NUMBER (CFS) (MIN, ) INTENSITY ( INCH/HOUR) ---------------------------------------------------------------------------- 1 2 349,17 7.48 23,75 10,40 2.163 3.405 c. e AI 61/1 :;2c>rSO RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 353.92 160.40 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 353.92 TIME (MINUTES) 23,754 TOTAL AREA(ACRES) = 210.68 0."-:5, Q - 1 7[; c..(s ..J' 1- , L. I N fi. -A- sD TO T~" CI-l. **************************************************************************** FLOW PROCESS FROM NODE 211. 00 TO NODE 409.00 IS CODE ~ 5 * ---------------------------------------------------------------------------- I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Palle 10 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1034.00 DOWNSTREAM NODE ELEVATION = 1030.50 CHANNEL LENGTH THRU SUBAREA(FEET) = 600,00 CHANNEL BASE (FEET) ~ 10.00 "Z" FACTOR = 2.000 MANNINGS FACTOR ~ .015 MAXIMUM DEPTH(FEET) 6.00 CHANNEL FLOW THRU SUBAREA (CFS) = 353,92 FLOW VELOCITY (FEET/SEC) ~ 10,63 FLOW DEPTH(FEET) 2.29 TRAVEL TlME(MIN,) = .94 TC(MIN.) = 24,69 **************************************************************************** FLOW PROCESS FROM NODE 211.00 TO NODE 409,00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 1.90 TOTAL AREA(ACRES) 212,58 TC(MIN) = 24,69 2,118 COEFFICIENT ~ ,8702 SUBAREA RUNOFF(CFS) 3,50 TOTAL RUNOFF(CFS) = 357,43 **************************************************************************** FLOW PROCESS FROM NODE 211. 00 TO NODE 409.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MlNUTES) = 24,69 RAINFALL INTENSITY (INCH./HOUR) = 2,12 TOTAL STREAM AREA (ACRES) = 212,58 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 357.43 **************************************************************************** FLOW PROCESS FROM NODE 406,00 TO NODE 410,00 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 450,00 UPSTREAM ELEVATION = 1081.00 DOWNSTREAM ELEVATION = 1078.00 ELEVATION DIFFERENCE ~ 3.00 TC ~ .303*[( 450.00**3)/( 3.00)]**,2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8796 SUBAREA RUNOFF(CFS) 28,64 TOTAL AREA(ACRES) ~ 9.10 9,508 3.578 TOTAL RUNOFF (CFS) 28,64 **************************************************************************** FLOW PROCESS FROM NODE 410.00 TO NODE 409.00 IS CODE ~ 3 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------~-~---------------------- ESTIMATED PIPE DIAMETER (INCH) INCREASED TO 18,000 DEPTH OF FLOW IN 18,0 INCH PIPE IS 9.9 INCHES ~'\ I I I I I I I I I I I I I I I I I I' I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 PIPEFLOW VELOCITY(FEET/SEC.) = 28.6 UPSTREAM NODE ELEVATION = 1078,00 DOWNSTREAM NODE ELEVATION = 1030,50 FLOWLENGTH(FEET) = 150.00 MANNINGS N ESTIMATED PIPE DIAMETER (INCH) 18,00 PIPEFLOW THRU SUBAREA(CFS) 28,64 TRAVEL TIME (MIN,) = .09 TC (MIN. ) .015 NUMBER OF PIPES 9,60 Pa~e 11 1 FLOW PROCESS FROM NODE 410,00 TO NODE 409,00 IS CODE = **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 9.60 RAINFALL INTENSITY (INCH./HOUR) = 3,56 TOTAL STREAM AREA (ACRES) = 9.10 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 28.64 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN, ) INTENSITY (INCH/HOUR) 1 2 357,43 28,64 2.118 3,560 F"I"D""- NTUI"ft. ~7+ 1"""'1 LI....<< A 24.69 9,60 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 374,46 167,52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS, RUNOFF (CFS) = 374.46 TIME (MINUTES) 24,694 TOTAL AREA(ACRES) = 221.68 fG - ,,<;14] A/l-:5 Q= 17.03 c-k srA :3Y-+o~ FLOW PROCESS FROM NODE 409.00 TO NODE 408.00 IS CODE = **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION = 1030.50 DOWNSTREAM NODE ELEVATION = 1027.70 CHANNEL LENGTH THRU SUBAREA (FEET) = 550,00 CHANNEL BASE (FEET) = 10,00 "Z" FACTOR = 2,000 MANNINGS FACTOR = .015 MAXIMUM DEPTH (FEET) 6,00 CHANNEL FLOW THRU SUBAREA (CFS) = 374,46 FLOW VELOCITY (FEET/SEC) = 10.26 FLOW DEPTH(FEET) 2.45 TRAVEL TIME (MIN,) = ,89 TC(MIN,) = 25,59 FLOW PROCESS FROM NODE 409.00 TO NODE 408.00 IS CODE = **************************************************************************** 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 2,077 ============================================================================ 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "a" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 2.60 TOTAL AREA (ACRES) 224,28 TC(MIN) = 25,59 COEFFICIENT = ,8698 SUBAREA RUNOFF(CFS) 4,70 TOTAL RUNOFF (CFS) = 379.16 lo/ Ntt A TM,tJ. c I-J 41' Itc <-vo Pit 01" ftA-.';1- qo I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pal:e 12 **************************************************************************** FLOW PROCESS FROM NODE 213,00 TO NODE 2 214,00 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ------------------------------------------------------~--------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA 'FLOW-LENGTH ~ 550.00 UPSTREAM ELEVATION ~ 1049.00 DOWNSTREAM ELEVATION = 1036.00 ELEVATION DIFFERENCE = 13.00 TC = .303*[( 550.00**3)/( 13.00)J**.2 7,999 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3.934 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8811 SUBAREA RUNOFF(CFS) 24,96 TOTAL AREA(ACRES) ~ 7,20 TOTAL RUNOFF(CFS) 24,96 **************************************************************************** FLOW PROCESS FROM NODE 214,00 TO NODE 6 214,10 IS CODE ~ >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION ~ STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1036,00 550.00 ~ 38.00 1029,00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 8, DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK INTERIOR STREET CROSS FALL (DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) ,020 19.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 35,65 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .57 HALFSTREET FLOODWIDTH(FEET) = 20,48 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.07 PRODUCT OF DEPTH&VELOCITY ~ 2,31 STREETFLOW TRAVELTIME(MIN) ~ 2.26 TC(MIN) 10,25 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = 3,432 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8790 SUBAREA AREA(ACRES) = 7.10 SUBAREA RUNOFF(CFS) 21.42 SUMMED AREA(ACRES) = 14,30 TOTAL RUNOFF(CFS) 46,38 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ~ ,62 HALFSTREET FLOODWIDTH(FEET) 22,86 FLOW VELOCITY(FEET/SEC,) = 4,28 DEPTH*VELOCITY = 2,64 **************************************************************************** FLOW PROCESS FROM NODE 214.10 TO NODE 215,00 IS CODE ~ 6 >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION ~ STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1029,00 600.00 = 38.00 DOWNSTREAM ELEVATION ~ CURB HEIGTH(INCHES) = 8. 1026.00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) .020 19,00 (A. I 1 I I I I II I I I I I I I 1 I 1 I) I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Palte 13 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF ~ 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) 47.15 STREETFLOW MODEL RESULTS: NOTE' STREET FLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREET FLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED, STREET FLOWDEPTH(FEET) = ,71 HALFSTREET FLOODWIDTH(FEET) ~ 27.61 AVERAGE FLOW VELOCITY(FEET/SEC,) ~ 3,02 PRODUCT OF DEPTH&VELOCITY ~ 2,14 STREETFLOW TRAVELTIME (MIN) ~ 3.31 TC(MIN) 13.57 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) ~ 2.943 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8764 SUBAREA AREA(ACRES) ~ .60 SUBAREA RUNOFF (CFS) 1.55 SUMMED AREA(ACRES) = 14.90 TOTAL RUNOFF(CFS) 47.93 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) = ,72 HALFSTREET FLOODWIDTH(FEET) 28.20 FLOW VELOCITY(FEET/SEC,) ~ 2.94 DEPTH*VELOCITY = 2,13 **************************************************************************** FLOW PROCESS FROM NODE 214,10 TO NODE 1 215,00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 13.57 RAINFALL INTENSITY (INCH./HOUR) ~ 2,94 TOTAL STREAM AREA (ACRES) ~ 14,90 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 47,93 **************************************************************************** FLOW PROCESS FROM NODE 216.00 TO NODE 215,00 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 500.00 UPSTREAM ELEVATION = 1028.00 DOWNSTREAM ELEVATION = 1026.00 ELEVATION DIFFERENCE = 2,00 TC ~ ,303*[( 500.00**3)/( 2,00)]**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8783 SUBAREA RUNOFF(CFS) 1,74 TOTAL AREA(ACRES) ~ ,60 10,984 3,305 1. 74 TOTAL RUNOFF(CFS) **************************************************************************** FLOW PROCESS FROM NODE 216.00 TO NODE 215.00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MlNUTES) = 10.98 RAINFALL INTENSITY (INCH./HOUR) ~ 3.31 TOTAL STREAM AREA (ACRES) = ,60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 1,74 (sD I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRlAN 100 YEAR STORM 8/15/98 Pa~e 14 **************************************************************************** FLOW PROCESS FROM NODE 215.10 TO NODE 215.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH ~ 550,00 UPSTREAM ELEVATION ~ 1029.00 DOWNSTREAM ELEVATION ~ 1026.00 ELEVATION DIFFERENCE ~ 3.00 TC = ,303*[( 550.00**3)/( 3.00)]**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8786 SUBAREA RUNOFF(CFS) 7.65 TOTAL AREA(ACRES) = 2.60 10.725 3.349 7,65 "'" It. (;',.#d. 0 51 TIE. TOTAL RUNOFF(CFS) ***************************~*~'tt***************************************** FLOW PROCESS FROM NODE 2{1,18 TO NODE 215,00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MlNUTES) = 10.72 RAINFALL INTENSITY (INCH./HOUR) = 3.35 TOTAL STREAM AREA (ACRES) ~ 2.60 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 7.65 CONFLUENCE INFORMATION: STREAM RUNOFF TIME INTENSITY NUMBER (CFS) (MIN,) (INCH/HOUR) ----~-------~;~;;-----~;~~;-------;~;~;--:=::--L-/~~--~::,-------------- 2 1.74 10,98 3.305 3 7.65 10.72 3.349 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 56.20 48,09 47.23 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 56.20 TIME (MINUTES) 13.567 TOTAL AREA(ACRES) ~ 18,10 **************************************************************************** FLOW PROCESS FROM NODE 215.00 TO NODE 212.10 IS CODE ~ 4 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ PIPEFLOW VELOCITY(FEET/SEC.) ~ 17,9 UPSTREAM NODE ELEVATION = 1022.00 DOWNSTREAM NODE ELEVATION ~ 1021,00 FLOWLENGTH(FEET) ~ 50.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) ~ 24.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA(CFS) 56,20 TRAVEL TlME(MIN,) ~ .05 TC(MIN,) ~ 13.61 1 ~\ I I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa2e 15 **************************************************************************** FLOW PROCESS FROM NODE 215.00 TO NODE 1 212,10 IS CODE = >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 13.61 RAINFALL INTENSITY (INCH,/HOUR) ~ 2.94 TOTAL STREAM AREA (ACRES) ~ 18.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 56,20 **************************************************************************** FLOW PROCESS FROM NODE 211. 00 TO NODE 214,20 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH ~ 900.00 UPSTREAM ELEVATION ~ 1046.00 DOWNSTREAM ELEVATION ~ 1029,00 ELEVATION DIFFERENCE = 17.00 TC = ,303*[( 900.00**31/( 17,00)]**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8790 SUBAREA RUNOFF(CFS) 2,94 TOTAL AREA(ACRES) = .97 10.187 3.445 TOTAL RUNOFF (CFSI 2.94 **************************************************************************** FLOW PROCESS FROM NODE 214,20 TO NODE 6 212,00 IS CODE ~ >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< UPSTREAM ELEVATION = STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1029,00 600,00 ~ 38,00 DOWNSTREAM ELEVATION ~ CURB HEIGTH(INCHES) ~ 8, 1026,00 DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK 19.00 INTERIOR STREET CROSSFALL(DEClMAL) ,020 OUTSIDE STREET CROSSFALL(DEClMAL) ,020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 3,64 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .35 HALFSTREET FLOODWIDTH(FEET) ~ 9,70 AVERAGE FLOW VELOCITY(FEET/SEC.) 1.61 PRODUCT OF DEPTH&VELOCITY = ,57 STREETFLOW TRAVELTIME (MIN) = 6.21 TC(MIN) 16,40 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 2.652 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8745 SUBAREA AREA(ACRES) ~ .60 SUBAREA RUNOFF(CFS) SUMMED AREA(ACRES) ~ 1.57 TOTAL RUNOFF(CFS) END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH(FEET) ~ ,36 HALFSTREET FLOODWIDTH(FEET) 10,23 FLOW VELOCITY(FEET/SEC.) = 1.75 DEPTH*VELOCITY = ,64 1. 39 4.33 **************************************************************************** (p'V I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa2e 16 FLOW PROCESS FROM NODE 214.20 TO NODE 212,00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 16.40 RAINFALL INTENSITY (INCH./HOUR) = 2,65 TOTAL STREAM AREA (ACRES) = 1. 57 TOTAL STREAM RuNOFF(CFS) AT CONFLUENCE ~ 4.33 **************************************************************************** FLOW PROCESS FROM NODE 304.00 TO NODE 2 212.00 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 500,00 UPSTREAM ELEVATION = 1028,00 DOWNSTREAM ELEVATION ~ 1026.00 ELEVATION DIFFERENCE = 2,00 TC ~ ,303*[( 500.00**3)/( 2,00)]**.2 10.984 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3.305 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8783 SUBAREA RUNOFF (CFS) 2.12 TOTAL AREA(ACRES) = ,73 TOTAL RUNOFF(CFS) 2.12 **************************************************************************** FLOW PROCESS FROM NODE 304,00 TO NODE 212,00 IS CODE - 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< --~------~---------------------------------------------------------~-------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) = 10.98 RAINFALL INTENSITY (INCH,/HOUR) = 3.31 TOTAL STREAM AREA (ACRES) = .73 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 2,12 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) ---------------------------------------------------------------------------- 1 2 3 56,20 4,33 2,12 13,61 16.40 10.98 2,937 2,652 3.305 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS, VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 61.68 56.76 50.36 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 61.68 TIME (MINUTES) 13.614 TOTAL AREA(ACRES) ~ 20.40 **************************************************************************** FLOW PROCESS FROM NODE 212,20 TO NODE 216,10 IS CODE = 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ Ci>~ I I I I I I I I I I I I I I I I I I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa~e 17 PIPEFLOW VELOCITY(FEET/SEC,) = 8.7 UPSTREAM NODE ELEVATION ~ 1020,00 DOWNSTREAM NODE ELEVATION ~ 1019.50 FLOWLENGTH(FEET) ~ 100.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) = 36.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) 61. 68 TRAVEL TIME(MIN,) ~ .19 TC(MIN.) = 13.80 1 **************************************************************************** FLOW PROCESS FROM NODE 212,10 TO NODE 216,10 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 13.80 RAINFALL INTENSITY (INCH./HOUR) ~ 2.91 TOTAL STREAM AREA (ACRES) ~ 20.40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 61,68 l,,..,1f.. A--I ~ + . 72..'0 fr", C 'T'\.. jJ/<.oP/14lr'> *********************************************************************** ~*** p FLOW PROCESS FROM NODE 216.00 TO NODE 216.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*((LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH ~ 500.00 UPSTREAM ELEVATION = 1028.00 DOWNSTREAM ELEVATION ~ 1026,00 ELEVATION DIFFERENCE ~ 2,00 TC ~ .303*[( 500.00**3)/( 2.00)J**.2 10.984 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3,305 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8783 SUBAREA RUNOFF (CFS) 6. 68 TOTAL AREA(ACRES) ~ 2.30 TOTAL RUNOFF(CFS) 6,68 **************************************************************************** FLOW PROCESS FROM NODE 216,00 TO NODE 216.10 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 10.98 RAINFALL INTENSITY (INCH,/HOUR) ~ 3,31 TOTAL STREAM AREA (ACRES) = 2,30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 6.68 **************************************************************************** FLOW PROCESS FROM NODE 303.00 TO NODE 216,10 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)] **,2 INITIAL SUBAREA FLOW-LENGTH ~ 500.00 UPSTREAM ELEVATION ~ 1028.00 DOWNSTREAM ELEVATION = 1026,00 ELEVATION DIFFERENCE = 2,00 TC ~ .303*(( 500,00**3)/( 2.00)]**.2 10,984 CA. I I I I I I I I I I I I I I I I I. I I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa~e 18 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3.305 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8783 SUBAREA RUNOFF (CFS) 6.79 TOTAL AREA(ACRES) = 2.34 TOTAL RUNOFF(CFS) 6.79 **************************************************************************** FLOW PROCESS FROM NODE 303,00 TO NODE 216,10 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) = 10.98 RAINFALL INTENSITY (INCH./HOUR) ~ 3,31 TOTAL STREAM AREA (ACRES) ~ 2.34 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 6,79 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) 1 2 3 13.80 10,98 10.98 A'T D'.....~ ~:;.T oSIOrz. 2.915 3.305 > c.i, 3,305 61.68 6,68 6.79 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS, VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 73,56 62.54 62.54 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 73.56 TIME (MINUTES) 13.805 TOTAL AREA(ACRES) = 25.04 **************************************************************************** FLOW PROCESS FROM NODE 215.10 TO NODE 215.20 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)J**,2 INITIAL SUBAREA FLOW-LENGTH = 500.00 UPSTREAM ELEVATION ~ 1029,00 DOWNSTREAM ELEVATION = 1026,00 ELEVATION DIFFERENCE = 3,00 TC = ,303*[( 500,00**3)/( 3,OO)J**,2 10.128 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3.456 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = ,8791 SUBAREA RUNOFF(CFS) 10,63 TOTAL AREA(ACRES) ~ 3.50 TOTAL RUNOFF(CFS) 10.63 LI"-'IL 4-~ **************************************************************************** FLOW PROCESS FROM NODE 215,20 TO NODE 215,30 IS CODE = 4 >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PIPEFLOW VELOCITY(FEET/SEC,) ~ 6,0 UPSTREAM NODE ELEVATION = 1023.00 DOWNSTREAM NODE ELEVATION = 1020,00 FLOWLENGTH(FEET) ~ 500,00 MANNINGS N ,013 on I I I I I I I I I I I I I I I I 1 1- I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pa~e 19 GIVEN PIPE DIAMETER(INCH) PIPEFLOW THRU SUBAREA(CFS) TRAVEL TIME (MIN.) ~ 1.39 18,00 NUMBER OF PIPES 10,63 TC(MIN.) ~ 11,51 1 **************************************************************************** FLOW PROCESS FROM NODE 215,20 TO NODE 8 215.30 IS CODE ~ >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA (ACRES) 1. 40 TOTAL AREA(ACRES) 4.90 TC(MIN) ~ 11,51 3,221 COEFFICIENT = .8779 SUBAREA RUNOFF (CFS) TOTAL RUNOFF (CFS) ~ 3,96 14.59 L/vft A-2. TO M u rut. i 1'V04 C. t2.~ , **************************************************************************** FLOW PROCESS FROM NODE 304.20 TO NODE 304,10 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 520,00 UPSTREAM ELEVATION ~ 1035.00 DOWNSTREAM ELEVATION ~ 1032.00 ELEVATION DIFFERENCE ~ 3.00 TC ~ .303*[( 520.00**3)/( 3,00)]**,2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8789 SUBAREA RUNOFF(CFS) 28,78 TOTAL AREA(ACRES) = 9,60 10,370 3.411 28.78 Fv.,-v Le. () 'fZ.I/. C IT') pILOP~'i" **************************************************************************** TOTAL RUNOFF(CFS) FLOW PROCESS FROM NODE 304.10 TO NODE 6 304,00 IS CODE = >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION ~ STREET LENGTH(FEET) = STREET HALFWIDTH(FEET) 1032,00 750.00 ~ 28,00 1028,00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 8. DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK 14.00 INTERIOR STREET CROSSFALL(DECIMAL) ,020 OUTSIDE STREET CROSSFALL(DECIMAL) ,020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 51.10 ***STREET FLOWING FULL*** STREET FLOW MODEL RESULTS, NOTE: STREETFLOW EXCEEDS TOP OF CURB, THE FOLLOWING STREETFLOW RESULTS ARE BASED ON THE ASSUMPTION THAT NEGLIBLE FLOW OCCURS OUTSIDE OF THE STREET CHANNEL. THAT IS, ALL FLOW ALONG THE PARKWAY, ETC., IS NEGLECTED, STREET FLOWDEPTH(FEET) ~ .73 HALFSTREET FLOODWIDTH(FEET) = 28.00 AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 3,08 PRODUCT OF DEPTH&VELOCITY ~ 2.24 STREETFLOW TRAVELTIME (MIN) ~ 4.06 TC(MIN) - 14,43 ~ I I I I I I I I I I I I I I I I I If I PM28657 LINE B AND LINE-A STORM DRIAN 100 YEAR STORM 8/15/98 Pajte 20 100.00 YEAR RAINFALL INTENSITY (INCH!HOUR) 2.845 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8758 SUBAREA AREA(ACRES) = 17.70 SUBAREA RUNOFF(CFS) 44,09 SUMMED AREA(ACRES) = 27.30 TOTAL RUNOFF(CFS) = 72,88 END OF SUBAREA STREETFLOW HYDRAULICS: -;:- DEPTH (FEET) = .79 HALFSTREET FLOODWIDTH(FEET) = 28.00 FLOW VELOCITY(FEET!SEC.) = 3,66 DEPTH*VELOCITY = 2.88 "f'nv~~ c.. I~ Dfl-l/. END OF RATIONAL METHOD ANALYSIS ============================================================================ LIN~ 4-.1 {J. q + 72-'1 ::. 134,6 c4! C>1. I I I I I I I I I I I I I I I !I I I I LINE-A TRAP CH AND FUTURE LINE-D AREA-G 100 YEAR HYDROLOGY (& I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 1 ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> II (C) Copyright 1982,1986 Advanced Engineering Software [AES] II <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> I I I II I I I I I II I I I I **********DESCRIPTION OF RESULTS******************************************** * AREA-G LINE A TRAP CHANNEL * * 8/15/98 * * AREA-G.DAT,. AREA-G. RES, AREA-G.TXT * **************************************************************************** USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT (YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE(INCH) ~ 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE FOR FRICTION SLOPE .90 10-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) = 2,360 10-YEAR STORM 60-MINUTE INTENSITY(INCH/HOUR) ~ .880 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 3.480 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) 1,300 SLOPE OF 10-YEAR INTENSITY-DURATION CURVE = .5505732 SLOPE OF 100-YEAR INTENSITY-DURATION CURVE ~ ,5495536 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT ~ 100.00 1-HOUR INTENSITY (INCH/HOUR) ~ 1,3000 SLOPE OF INTENSITY DURATION CURVE = .5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No. 100971 VER. 3,3C RELEASE DATE, 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **************************************************************************** FLOW PROCESS FROM NODE 403,30 TO NODE 403,20 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1805,00 DOWNSTREAM ELEVATION ~ 1350.00 ELEVATION DIFFERENCE ~ 455,00 TC ~ ,937*[( 1000.00**3)/( 455,00)]**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS liD" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT SUBAREA RUNOFF (CFS) = 11.03 COVER 17,391 2,567 .7672 CIA. , I I I I I I I' I I I I I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 TOTAL AREA (ACRES) 5,60 TOTAL RUNOFF (CFS) 11. 03 Pa2e 2 FLOW PROCESS FROM NODE 403.30 TO NODE 403.20 IS CODE = **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 17.39 RAINFALL INTENSITY (INCH./HOUR) = 2.57 TOTAL STREAM AREA (ACRES) = 5,60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 11.03 FLOW PROCESS FROM NODE 403.40 TO NODE 403.20 IS CODE = **************************************************************************** 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1825,00 DOWNSTREAM ELEVATION = 1350.00 ELEVATION DIFFERENCE = 475,00 TC = ,937*[( 1000.00**3)/( 475.00)]**.2 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7677 SUBAREA RUNOFF(CFS) 17.43 TOTAL AREA(ACRES) = 8,80 17,242 2.580 17,43 TOTAL RUNOFF(CFS) FLOW PROCESS FROM NODE 403.40 TO NODE 403,20 IS CODE = **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 17,24 RAINFALL INTENSITY (INCH,/HOUR) = '2.58 TOTAL STREAM AREA (ACRES) = 8.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 17.43 CONFLUENCE INFORMATION, STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) 1 2 11. 03 17.43 17.39 17.24 2.567 2,580 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS' 28.38 28.36 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 28,38 TIME (MINUTES) 17,391 TOTAL AREA(ACRES) = 14,40 FLOW PROCESS FROM NODE 403.20 TO NODE 403.10 IS CODE = **************************************************************************** 5 1.0, I I I I I I I I I II : I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< UPSTREAM NODE ELEVATION = 1350.00 DOWNSTREAM NODE ELEVATION ~ 1220.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 900.00 CHANNEL BASE (FEET) ~ 25,00 "Z" FACTOR ~ MANNINGS FACTOR = .040 MAXIMUM DEPTH(FEET) CHANNEL FLOW THRU SUBAREA(CFS) = 28,38 FLOW VELOCITY (FEET/SEC) = 4,67 FLOW DEPTH(FEET) TRAVEL TIME (MIN.) = 3,21 TC(MIN,) ~ 20,60 4,000 4.00 ,23 Pa~e 3 FLOW PROCESS FROM NODE 403,20 TO NODE 403,10 IS CODE ~ **************************************************************************** 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.339 SOIL CLASSIFICATION IS "0" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ .7563 SUBAREA AREA (ACRES) 13,60 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 28.00 TOTAL RUNOFF(CFS) ~ TC(MIN) = 20.60 24,06 52.44 FLOW PROCESS FROM NODE 403,10 TO NODE 403.00 IS CODE ~ **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1220,00 DOWNSTREAM NODE ELEVATION ~ 1155.00 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 560,00 CHANNEL BASE (FEET) ~ 10,00 "Z" FACTOR ~ 4,000 MANNINGS FACTOR ~ ,040 MAXIMUM DEPTH (FEET) 5.00 CHANNEL FLOW THRU SUBAREA(CFS) = 52.44 FLOW VELOCITY (FEET/SEC) ~ 7,55 FLOW DEPTH(FEET) ,57 TRAVEL TIME(MIN,) ~ 1.24 TC(MIN,) ~ 21,84 FLOW PROCESS FROM NODE 403.10 TO NODE 403.00 IS CODE ~ **************************************************************************** 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2,265 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7118 SUBAREA AREA(ACRES) 4.80 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 32.80 TOTAL RUNOFF(CFS) ~ TC(MIN) ~ 21.84 7,74 60.18 FLOW PROCESS FROM NODE 403,10 TO NODE 403,00 IS CODE ~ **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) ~ 21,84 RAINFALL INTENSITY (INCH./HOUR) = 2,27 TOTAL STREAM AREA (ACRES) ~ 32.80 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 60,18 '"\\ I I I I I II I I I I I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa2e 4 **************************************************************************** FLOW PROCESS FROM NODE 400.00 TO NODE 401.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*((LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 700.00 UPSTREAM ELEVATION = 1595.00 DOWNSTREAM ELEVATION ~ 1260.00 ELEVATION DIFFERENCE ~ 335,00 TC ~ .937*(( 700.00**3)/( 335.00)]**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7764 SUBAREA RUNOFF (CFS) 11.71 TOTAL AREA (ACRES) = 5.40 14.927 2,792 11. 71 TOTAL RUNOFF (CFS) **************************************************************************** FLOW PROCESS FROM NODE 401. 00 TO NODE 403.00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ----------------------------------------------------~----------------------- UPSTREAM NODE ELEVATION = 1260,00 DOWNSTREAM NODE ELEVATION = 1155,00 CHANNEL LENGTH THRU SUBAREA (FEET) = 850.00 CHANNEL BASE (FEET) ~ 25.00 "Z" FACTOR ~ MANNINGS FACTOR ~ ,040 MAXIMUM DEPTH (FEET) CHANNEL FLOW THRU SUBAREA (CFS) = 11,71 FLOW VELOCITY (FEET/SEC) = 3,35 FLOW DEPTH(FEET) TRAVEL TlME(MIN,) = 4.23 TC(MIN,) = 19.15 4.000 5.00 ,14 **************************************************************************** FLOW PROCESS FROM NODE 401. 00 TO NODE 403,00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2,435 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7223 SUBAREA AREA(ACRES) 4,30 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 9,70 TOTAL RUNOFF(CFS) = TC(MIN) = 19.15 7,56 19.27 **************************************************************************** FLOW PROCESS FROM NODE 401. 00 TO NODE 403.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 19.15 RAINFALL INTENSITY (INCH./HOUR) = 2,43 TOTAL STREAM AREA (ACRES) ~ 9.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 19.27 CONFLUENCE INFORMATION, STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) ~-z,. ---------------------------------------------------------------------------- I I, I I I I I II I I I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 5 1 2 60.18 19.27 21.84 19.15 2.265 2.435 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 78.10 72,04 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 78,10 TIME (MINUTES) 21,841 TOTAL AREA (ACRES) = 42.50 **************************************************************************** FLOW PROCESS FROM NODE 403.00 TO NODE 404.10 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1155,00 DOWNSTREAM NODE ELEVATION = 1140,00 CHANNEL LENGTH THRU SUBAREA (FEET) = 240.00 CHANNEL BASE(FEET) = 25,00 "Z" FACTOR = 4.000 MANNINGS FACTOR = .040 MAXIMUM DEPTH (FEET) 5.00 CHANNEL FLOW THRU SUBAREA (CFS) = 78.10 FLOW VELOCITY (FEET/SEC) = 5,46 FLOW DEPTH (FEET) .53 TRAVEL TlME(MIN,) = .73 TC(MIN.) = 22.57 **************************************************************************** FLOW PROCESS FROM NODE 403.00 TO NODE 404.10 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2,225 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7091 SUBAREA AREA (ACRES) 3.50 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 46.00 TOTAL RUNOFF (CFS) = TC(MIN) = 22.57 5,52 83.62 **************************************************************************** FLOW PROCESS FROM NODE 404,10 TO NODE 404,00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ DEPTH OF FLOW IN 21.0 INCH PIPE IS 14.0 INCHES PIPEFLOW VELOCITY(FEET/SEC,) = 48,9 UPSTREAM NODE ELEVATION = 1140,00 DOWNSTREAM NODE ELEVATION = 1090.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N ESTIMATED PIPE DIAMETER (INCH) 21,00 PIPEFLOW THRU SUBAREA(CFS) 83,62 TRAVEL TIME (MIN.) = ,03 TC (MIN. ) FuT''"' i21l.. s,.....tl..r 1..,.v6.-D .013 NUMBER OF PIPES 1 22,61 **************************************************************************** FLOW PROCESS FROM NODE 404,00 TO NODE 405.00 IS CODE = 3 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ============================================================================ DEPTH OF FLOW IN 42,0 INCH 'PIPE IS 33,7 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 10.1 UPSTREAM NODE ELEVATION = 1090,00 "'\,,? I I I I I I I I I I I I II I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 6 DOWNSTREAM NODE ELEVATION ~ FLOWLENGTH(FEET) ~ 500,00 ESTIMATED PIPE DIAMETER (INCH) PIPEFLOW THRU SUBAREA (CFS) TRAVEL TlME(MIN,) ~ ,82 1086.00 MANNINGS N 42.00 83,62 TC (MIN. ) 23,43 ,013 NUMBER OF PIPES 1 **************************************************************************** FLOW PROCESS FROM NODE 404,00 TO NODE 8 405,00 IS CODE = >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 8,90 TOTAL AREA(ACRES) 54,90 TC(MIN) ~ 23,43 2.180 COEFFICIENT = .8708 SUBAREA RUNOFF(CFS) 16,89 TOTAL RUNOFF(CFS) = 100,52 **************************************************************************** FLOW PROCESS FROM NODE 406.00 IS CODE ~ 3 405.00 TO NODE >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 45.0 INCH PIPE IS 32,6 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ~ 11,7 UPSTREAM NODE ELEVATION = 1086.00 DOWNSTREAM NODE ELEVATION = 1081,00 FLOWLENGTH(FEET) = 500,00 MANNINGS N ESTIMATED PIPE DIAMETER(INCH) 45,00 PIPEFLOW THRU SUBAREA (CFS) 100.52 TRAVEL TlME(MIN.) = ,71 TC(MIN,) .013 NUMBER OF PIPES 1 24,14 **************************************************************************** FLOW PROCESS FROM NODE 405,00 TO NODE 406,00 IS CODE = 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 8.10 TOTAL AREA(ACRES) 63.00 TC(MIN) ~ 24.14 2,144 COEFFICIENT ~ .8705 SUBAREA RUNOFF (CFS) = 15.12 TOTAL RUNOFF(CFS) - 115.63 **************************************************************************** FLOW PROCESS FROM NODE 406,00 TO NODE 407.00 IS CODE = 4 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ PIPEFLOW VELOCITY(FEET/SEC.) = 16.4 UPSTREAM NODE ELEVATION ~ 1081.00 DOWNSTREAM NODE ELEVATION ~ 1075,00 FLOWLENGTH(FEET) ~ 400.00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) ~ 36,00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 115,63 TRAVEL TlME(MIN,) ~ ,41 TC(MIN.) ~ 24.55 **************************************************************************** FLOW PROCESS FROM NODE 406.00 TO NODE 407,00 IS CODE ~ 1 "A. I I. I I I I I I I I I I I '1 I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 7 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MlNUTES) = 24.55 RAINFALL INTENSITY (INCH./HOUR) = 2.12 TOTAL STREAM AREA (ACRES) = 63.00 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 115,63 **************************************************************************** FLOW PROCESS FROM NODE 405.20 TO NODE 405.10 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW-LENGTH = 1100,00 UPSTREAM ELEVATION = 1204.00 DOWNSTREAM ELEVATION = 1085.00 ELEVATION DIFFERENCE = 119.00 TC = ,937*[( 1100.00**3)/( 119,OO)J**.2 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "c" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7037 SUBAREA RUNOFF(CFS) 12,69 TOTAL AREA(ACRES) = 8,40 24,080 2,147 TOTAL RUNOFF(CFS) 12.69 **************************************************************************** FLOW PROCESS FROM NODE 405.10 TO NODE 407,00 IS CODE = 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1085,00 DOWNSTREAM NODE ELEVATION = 1075.00 CHANNEL LENGTH THRU SUBAREA (FEET) = 10,00 CHANNEL BASE(FEET) = 10,00 "z" FACTOR = 5,000 MANNINGS FACTOR = .040 MAXIMUM DEPTH(FEET) 5,00 CHANNEL FLOW THRU SUBAREA (CFS) = 12,69 FLOW VELOCITY (FEET/SEC) = 8,69 FLOW DEPTH(FEET) .14 TRAVEL TIME (MIN,) = .02 TC(MIN.) = 24.10 **************************************************************************** FLOW PROCESS FROM NODE 405,10 TO NODE 1 407.00 IS CODE = >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 24.10 RAINFALL INTENSITY (INCH,/HOUR) = 2.15 TOTAL STREAM AREA (ACRES) = 8,40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 12.69 **************************************************************************** FLOW PROCESS FROM NODE 407,20 TO NODE 407,10 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC K*[(LENGTH**3)/(ELEVATION CHANGE)J**,2 '\-5 I I I I I I I I I I I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Paj{e 8 INITIAL SUBAREA FLOW-LENGTH 1200.00 UPSTREAM ELEVATION ~ 1350.00 DOWNSTREAM ELEVATION = 1115,00 ELEVATION DIFFERENCE = 235.00 TC = .937*[( 1200.00**3)/( 235,00)]**.2 22.142 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.248 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7107 SUBAREA RUNOFF(CFS) 15,02 TOTAL AREA(ACRES) ~ 9,40 TOTAL RUNOFF(CFS) 15.02 **************************************************************************** FLOW PROCESS FROM NODE 407,10 TO NODE 407.00 IS CODE ~ 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1350,00 DOWNSTREAM NODE ELEVATION = 1115,00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 1050,00 CHANNEL BASE(FEET) = 25,00 "Z" FACTOR = 5,000 MANNINGS FACTOR = ,040 MAXIMUM DEPTH (FEET) 2,00 CHANNEL FLOW THRU SUBAREA(CFS) ~ 15,02 FLOW VELOCITY (FEET/SEC) ~ 4,16 FLOW DEPTH(FEET) TRAVEL TlME(MIN,) = 4.21 TC(MIN.) ~ 26.35 .14 **************************************************************************** FLOW PROCESS FROM NODE 407,10 TO NODE 407,00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- -----------~----------------~----------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.043 SOIL CLASSIFICATION IS liB" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .5949 SUBAREA AREA(ACRES) 13.80 SUBAREA RUNOFF (CFS) 16.77 TOTAL AREA(ACRES) 23,20 TOTAL RUNOFF(CFS) ~ 31,79 TC(MIN) ~ 26,35 **************************************************************************** FLOW PROCESS FROM NODE 407,10 TO NODE 407.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) ~ 26,35 RAINFALL INTENSITY (INCH./HOUR) = 2.04 TOTAL STREAM AREA (ACRES) ~ 23.20 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 31,79 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN, ) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 3 115.63 12.69 31. 79 24.55 24.10 26,35 2,124 2.146 2,043 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS' 157,81 155,27 155.09 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: 4((;> I I I I I I I I I I: I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 RUNOFF (CFS) = 157.81 TOTAL AREA (ACRES) ~ 24.550 TIME (MINUTES) 94,60 Palte 9 FLOW PROCESS FROM NODE 407.00 TO NODE 408.00 IS CODE ~ **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< UPSTREAM NODE ELEVATION ~ 1075,00 DOWNSTREAM NODE ELEVATION = 1027,90 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 1000.00 CHANNEL BASE(FEET) ~ 4.00 "z" FACTOR ~ 2,000 MANNINGS FACTOR ~ .015 MAXIMUM DEPTH(FEET) 5.00 CHANNEL FLOW THRU SUBAREA(CFS) ~ 157.81 FLOW VELOCITY (FEET/SEC) = 19.01 FLOW DEPTH(FEET) 1,27 TRAVEL TIME (MIN.) = ,88 TC(MIN.) = 25.43 FLOW PROCESS FROM NODE 407.00 TO NODE 408,00 IS CODE ~ **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 25.43 RAINFALL INTENSITY (INCH./HOUR) ~ 2.08 TOTAL STREAM AREA (ACRES) = 94,60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 157.81 FLOW PROCESS FROM NODE 408,20 TO NODE 408.10 IS CODE = **************************************************************************** 2 >>>>>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 = 930,00 UPSTREAM ELEVATION ~ 1093,00 DOWNSTREAM ELEVATION = 1082.00 ELEVATION DIFFERENCE ~ 11,00 TC = .709*[( 930.00**3)/( 11.00)]**.2 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ .5942 SUBAREA RUNOFF(CFS) 8.59 TOTAL AREA(ACRES) = 7,10 26.528 2.036 TOTAL RUNOFF (CFS) 8.59 FLOW PROCESS FROM NODE 408.10 TO NODE 408.00 IS CODE = **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1082,00 DOWNSTREAM NODE ELEVATION ~ 1027,90 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 200,00 CHANNEL BASE (FEET) ~ 1.00 "Z" FACTOR = 1.500 MANNINGS FACTOR = .015 MAXIMUM DEPTH(FEET) 2.00 CHANNEL FLOW THRU SUBAREA (CFS) ~ 8.59 FLOW VELOCITY (FEET/SEC) ~ 17,54 FLOW DEPTH(FEET) ,33 TRAVEL TIME (MIN.) ~ .19 TC(MIN.) ~ 26,72 ~1. I I I I I I I I I I I I I I I I I I I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 10 **************************************************************************** FLOW PROCESS FROM NODE 408,10 TO NODE 1 408.00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MlNUTES) ~ 26,72 RAINFALL INTENSITY (INCH .!HOUR) = 2,03 TOTAL STREAM AREA (ACRES) ~ 7,10 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 8,59 **************************************************************************** FLOW PROCESS FROM NODE 408.30 TO NODE 2 408,10 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION = 1097.00 DOWNSTREAM ELEVATION = 1082.00 ELEVATION DIFFERENCE = 15,00 TC = .937*[( 900,00**3)/( 15,OO)J**.2 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,5720 SUBAREA RUNOFF(CFS) 6,58 TOTAL AREA(ACRES) ~ 6.30 32.304 1. 827 6,58 TOTAL RUNOFF(CFS) **************************************************************************** FLOW PROCESS FROM NODE 408.30 TO NODE 408,00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< -----------------------------------------------~---------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION ~ 1082.00 DOWNSTREAM NODE ELEVATION ~ 1027,90 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 200.00 CHANNEL BASE (FEET) ~ 2,00 "Z" FACTOR = 1. 500 MANNINGS FACTOR = .015 MAXIMUM DEPTH (FEET) 3.00 CHANNEL FLOW THRU SUBAREA(CFS) ~ 6,58 FLOW VELOCITY (FEET/SEC) = 14,38 FLOW DEPTH(FEET) ,20 TRAVEL TIME (MIN.) ~ ,23 TC(MIN,) = 32.54 **************************************************************************** FLOW PROCESS FROM NODE 408,30 TO NODE 408.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) ~ 32.54 RAINFALL INTENSITY (INCH./HOUR) = 1.82 TOTAL STREAM AREA (ACRES) = 6.30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 6,58 **************************************************************************** FLOW PROCESS FROM NODE 409',00 TO NODE 408,00 IS CODE ~ 7 ---------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< 1~ I I I I I I I I I I I I I I I I I 1- I PM28657 LINE A TRAP CHANNEL / RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa/(e 11 ============================================================================ USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 25,59 RAIN INTENSITY(INCH/HOUR) = 2,08 TOTAL AREA (ACRES) = 224,28 TOTAL RUNOFF(CFS) = 379.16 lllvTr. A ..r c: IT')- "TIZ4P. c.).j. P /2. (J I'!'f,q"'1- FLOW PROCESS FROM NODE 408.00 TO NODE 408,00 IS CODE = **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION(MINUTES) ~ 25.59 RAINFALL INTENSITY (INCH./HOUR) = 2.08 TOTAL STREAM AREA (ACRES) = 224,28 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 379,16 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN. ) INTENSITY (INCH/HOUR) 1 2 3 4 157,81 8,59 6,58 379.16 25.43 26.72 32,54 25.59 2,084 J=c.JTu""'- L/IV{l. 0 2,028 1. 820 2,076 LI ~1'L-4 A!l.5 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 4 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 547,87 537.85 484.39 549.82 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 549,82 TIME (MINUTES) 25.590 TOTAL AREA (ACRES) = 332,28 a.,. 54"\.8L R. "'......0 Ff=. r, :. s'l't.S2.- ) '2J ,,_ "I: ". ~ /70.''0 C::fS FLOW PROCESS FROM NODE 408.00 TO NODE 410.00 IS CODE ~ **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1027,90 DOWNSTREAM NODE ELEVATION ~ 1022.00 CHANNEL LENGTH THRU SUBAREA (FEET) = 1200.00 CHANNEL BASE(FEET) ~ 10,00 "z" FACTOR = 2,000 MANNINGS FACTOR ~ .030 MAXIMUM DEPTH(FEET) 8.00 CHANNEL FLOW THRU SUBAREA (CFS) = 549.82 FLOW VELOCITY (FEET/SEC) ~ 6,81 FLOW DEPTH (FEET) 4,33 TRAVEL TIME (MIN.) = 2.94 TC(MIN.) ~ 28,53 FLOW PROCESS FROM NODE 408,00 TO NODE 410.00 IS CODE ~ **************************************************************************** 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 1.956 SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,5861 SUBAREA AREA(ACRES) 2,30 SUBAREA RUNOFF (CFS) 2.64 /..."vfL-A TOTAL AREA(ACRES) = 334.58 TOTAL RUNOFF(CFS) = 552.46 cij. F=L~ ==~:~~:~~=:=~:~~::====~~=====~~~~===========~~~~========~~~~~===~r~==~~1:~/~ END OF RATIONAL METHOD ANALYSIS cUtu< 11\ I I I I I il i I I , I I I i I I :. , II II I I I AREA-GG RCWD PROPERTY .100 YEAR HYDROLOGY ~ I I I I 1 1 I I I I I 1 1 I I I I I. , 1 PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa/:e 1 ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AES] <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * RCWD PROPERTY AREA-GG * * 100 YEAR UNDEVELOPED RUNOFF * * 8/15/98 * **************************************************************************** ---------------------------------------------------------------------------- USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: ---------------------------------------------------------------------------- USER SPECIFIED STORM EVENT (YEAR) ~ 100,00 SPECIFIED MINIMUM PIPE SIZE(INCH) ~ 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE FOR FRICTION SLOPE ,90 10-YEAR STORM 10-MINUTE INTENSITY(INCH/HOUR) ~ 2,360 10-YEAR STORM 60-MINUTE INTENSITY(INCH/HOUR) ~ .880 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 3.480 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) 1.300 SLOPE OF 10-YEAR INTENSITY-DURATION CURVE ~ ,5505732 SLOPE OF 100-YEAR INTENSITY-DURATION CURVE = .5495536 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT ~ 100,00 I-HOUR INTENSITY(INCH/HOUR) ~ 1.3000 SLOPE OF INTENSITY DURATION CURVE ~ .5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No. 100971 VER, 3,3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **************************************************************************** FLOW PROCESS FROM NODE 503.30 TO NODE 503,10 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 900.00 UPSTREAM ELEVATION ~ 1850,00 DOWNSTREAM ELEVATION ~ 1325.00 ELEVATION DIFFERENCE = 525.00 TC = ,937*[( 900,00**3)/( 525,00)]**,2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "e" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT SUBAREA RUNOFF (CFS) ~ 15.12 COVER 15.865 2,700 .7366 ~\ I I I I I I I I I I I I I I I I I I I PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 2 TOTAL AREA (ACRES) 7.60 TOTAL RUNOFF (CFS) 15.12 **************************************************************************** FLOW PROCESS FROM NODE 503,30 TO NODE 503.10 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 15.86 RAINFALL INTENSITY (INCH,/HOUR) = 2,70 TOTAL STREAM AREA (ACRES) = 7,60 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 15,12 **************************************************************************** FLOW PROCESS FROM NODE 503,20 TO NODE 503.10 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 600.00 UPSTREAM ELEVATION ~ 1825,00 DOWNSTREAM ELEVATION = 1325,00 ELEVATION DIFFERENCE ~ 500.00 TC = ,937*[( 600.00**3)/( 500,00)]**,2 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7531 SUBAREA RUNOFF(CFS) 8.55 TOTAL AREA(ACRES) = 3.70 12.561 3,070 TOTAL RUNOFF (CFS) 8,55 **************************************************************************** FLOW PROCESS FROM NODE 503,20 TO NODE 503,10 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 12,56 RAINFALL INTENSITY (INCH./HOUR) ~ 3.07 TOTAL STREAM AREA (ACRES) = 3.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 8,55 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN,) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 15.12 8.55 15.86 12.56 2.700 3.070 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 22.64 20.52 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 22.64 TIME (MINUTES) 15.865 TOTAL AREA(ACRES) ~ 11.30 **************************************************************************** FLOW PROCESS FROM NODE 503,10 TO NODE 503.00 IS CODE = 5 ~z,- I I I I I I I I I I I I I 1 1 I 1 I' 1 PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< Pa2e 3 ============================================================================ UPSTREAM NODE ELEVATION ~ 1325.00 DOWNSTREAM NODE ELEVATION ~ 1105,00 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 2000,00 CHANNEL BASE (FEET) ~ 20,00 "Z" FACTOR = MANNINGS FACTOR - ,040 MAXIMUM DEPTH(FEET) CHANNEL FLOW THRU SUBAREA (CFS) ~ 22,64 FLOW VELOCITY (FEET/SECI = 4,30 FLOW DEPTH(FEET) TRAVEL TIME (MIN.) = 7,76 TC(MIN,) = 23,63 3.000 5.00 .25 FLOW PROCESS FROM NODE 503.00 IS CODE ~ **************************************************************************** 8 503.10 TO NODE >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2.170 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7053 SUBAREA AREA(ACRES) 17.70 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 29.00 TOTAL RUNOFF(CFS) ~ TC(MIN) ~ 23,63 27,08 49,73 COIVF". FLOW PROCESS FROM NODE 504.00 IS CODE = **************************************************************************** 5 503,00 TO NODE >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< UPSTREAM NODE ELEVATION = 1105.00 DOWNSTREAM NODE ELEVATION = 1078.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 1450.00 CHANNEL BASE (FEET) ~ 50.00 "Z" FACTOR ~ 2,000 MANNINGS FACTOR ~ ,030 MAXIMUM DEPTH (FEET) 1,00 CHANNEL FLOW THRU SUBAREA (CFS) ~ 49,73 FLOW VELOCITY (FEET/SEC) = 2,99 FLOW DEPTH(FEET) .33 TRAVEL TIME (MIN.) ~ 8,08 TC(MIN.) ~ 31,70 FLOW PROCESS FROM NODE 503,00 TO NODE 504,00 IS CODE ~ **************************************************************************** 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 1.846 SOIL CLASSIFICATION IS liB" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,5741 SUBAREA AREA(ACRES) 24.20 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 53.20 TOTAL RUNOFF (CFS) = TC(MIN) ~ 31.70 25.65 75,37 FLOW PROCESS FROM NODE 504,00 TO NODE 505.00 IS CODE = **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< UPSTREAM NODE ELEVATION ~ 1078,00 DOWNSTREAM NODE ELEVATION = 1033.00 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 200,00 CHANNEL BASE (FEET) 5,00 "Z" FACTOR = MANNINGS FACTOR = .015 MAXIMUM DEPTH (FEET) 2,000 2.00 tt>~ I I I I I I I I I I I I I I I I I I I PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa~e 4 CHANNEL FLOW THRU SUBAREA (CFS) = 75.37 FLOW VELOCITY (FEET/SEC) = 26,07 FLOW DEPTH(FEET) TRAVEL TIME (MIN.) = .13 TC(MIN.) = 31.83 .48 **************************************************************************** FLOW PROCESS FROM NODE 504.00 TO NODE 505.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ----------------------------------~----------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) = 31,83 RAINFALL INTENSITY (INCH./HOUR) = 1,84 TOTAL STREAM AREA (ACRES) = 53,20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 75,37 **************************************************************************** FLOW PROCESS FROM NODE 508,00 TO NODE 507.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 750.00 UPSTREAM ELEVATION = 1525.00 DOWNSTREAM ELEVATION = 1216.00 ELEVATION DIFFERENCE = 309.00 TC = ,937*[( 750,00**3)/( 309,00)]**.2 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7368 SUBAREA RUNOFF(CFS) 12,36 TOTAL AREA (ACRES) = 6,20 15.811 2,705 TOTAL RUNOFF(CFS) 12.36 **************************************************************************** FLOW PROCESS FROM NODE 507.00 TO NODE 506,00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION = 1216,00 DOWNSTREAM NODE ELEVATION = 1090.00 CHANNEL LENGTH THRU SUBAREA(FEETI = 1000,00 CHANNEL BASE (FEET) = 50,00 "z" FACTOR = 2,000 MANNINGS FACTOR = ,040 MAXIMUM DEPTH(FEET) 1,00 CHANNEL FLOW THRU SUBAREA(CFS) = 12.36 FLOW VELOCITY (FEET/SEC) = 3.15 FLOW DEPTH(FEET) ,08 TRAVEL TIME (MIN.) = 5,28 TC(MIN,) = 21.10 **************************************************************************** FLOW PROCESS FROM NODE 507.00 TO NODE 506,00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOURI 2,309 SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,6191 SUBAREA AREA(ACRES) 14.80 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 21,00 TOTAL RUNOFF(CFS) = TC (MIN) = 21.10 21.16 33,52 ~ I I I I I I I I I I I I I I I I I I I PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 Pa2e 5 **************************************************************************** FLOW PROCESS FROM NODE 506,00 TO NODE 505.00 IS CODE ~ 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1090.00 DOWNSTREAM NODE ELEVATION ~ 1033,00 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 1400.00 CHANNEL BASE (FEET) = 25.00 "Z" FACTOR ~ 2.000 MANNINGS FACTOR ~ ,030 MAXIMUM DEPTH (FEET) 2,00 CHANNEL FLOW THRU SUBAREA (CFS) = 33,52 FLOW VELOCITY (FEET/SEC) ~ 4.41 FLOW DEPTH(FEET) .30 TRAVEL TIME(MIN,) = 5.29 TC(MIN.) = 26,39 ***********************************************************************~**** FLOW PROCESS FROM NODE 506,00 TO NODE 505.00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2,042 SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .5948 SUBAREA AREA(ACRES) 18,10 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 39,10 TOTAL RUNOFF(CFS) = TC(MIN) ~ 26.39 21.98 55.50 **************************************************************************** FLOW PROCESS FROM NODE 506,00 TO NODE 505.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 26,39 RAINFALL INTENSITY (INCH,/HOUR) ~ 2.04 TOTAL STREAM AREA (ACRES) = 39.10 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 55,50 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 75,37 55.50 31. 83 26.39 1. 842 2,042 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 125.43 117.97 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 125,43 TIME (MINUTES) 31,832 TOTAL AREA (ACRES) = 92,30 **************************************************************************** FLOW PROCESS FROM NODE 505,00 TO NODE 411,00 IS CODE ~ 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1033.00 DOWNSTREAM NODE ELEVATION = 1022.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 1900.00 ~6 I I I I I 1 I I 1 1 1 I 1 I I I I I' I PM28657 AREA GG OFFSITE RCWD PROPERTY 100 YEAR STORM 8/15/98 I CHANNEL BASE (FEET) 50.00 "Z" FACTOR 2.000 MANNINGS FACTOR = .030 MAXIMUM DEPTH(FEET) 1,00 CHANNEL FLOW THRU SUBAREA(CFS) = 125,43 FLOW VELOCITY (FEET/SEC) = 3.18 FLOW DEPTH(FEET) TRAVEL TIME(MIN.) = 9,96 TC(MIN,) = 41,79 Pa~e 6 ,77 **************************************************************************** FLOW PROCESS FROM NODE 505,00 TO NODE 411,00 IS CODE - 1 --------------------------------------------------~---------------~--------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 41.79 RAINFALL INTENSITY (INCH./HOUR) = 1,59 TOTAL STREAM AREA (ACRES) ~ 92,30 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 125,43 **************************************************************************** FLOW PROCESS FROM NODE 408.00 TO NODE 411.00 IS CODE = 7 ---------------------------------------------------------------------------- >>>>>USER SPECIFIED HYDROLOGY INFORMATION AT NODE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- USER-SPECIFIED VALUES ARE AS FOLLOWS: TC(MIN) = 28.53 RAIN INTENSITY(INCH/HOUR) = 1.96 TOTAL AREA(ACRES) ~ 334,58 TOTAL RUNOFF(CFS) = 552.46 ~ el""ll\ \ - ~ '/./,~ **************************************************************************** FLOW PROCESS FROM NODE 108.00 TO NODE 411,00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) ~ 28.53 RAINFALL INTENSITY (INCH./HOUR) = 1,96 TOTAL STREAM AREA (ACRES) ~ 334.58 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 552.46 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) oFFsrr< IN TP.AP c.H RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 573.34 638.09 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 638,09 TIME (MINUTES) ~ 28.530 ~~;~~~;~~;~~:~:~;~~~~;;~;;;;====~~=============~~~~~~:t~~~~~Jt~~4 '-"I lye,;, '( c ~ i'Ui:K' ~ I I I , I . I , , I I I I I i I I '. I. I I I . I LINE B 100 YEAR STORM HYDROLOGY ~1 I I I I I I I I I I I I II I I I I I' I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 1 ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AESJ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * 100 YEAR STORM LINE B FROM PM 28473 TO PM 28657 * * WINCHESTER ROAD TO FUTURE WESTERN BY-PASS ROAD AT PM28657 * * FILE: AREA-A.DAT SD-B100.TXT 7/28/98 * **************************************************************************** ---------------------------------------------------------------------------- ~ 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 FOR FRICTION SLOPE .90 10-YEAR STORM 10-MlNUTE INTENSITY (INCH/HOUR) ~ 2,360 10-YEAR STORM 60-MlNUTE INTENSITY (INCH/HOUR) = ,880 100-YEAR STORM 10-MlNUTE INTENSITY(INCH/HOUR) 3.480 100-YEAR STORM 60-MlNUTE INTENSITY (INCH/HOUR) 1,300 SLOPE OF 10-YEAR INTENSITY-DURATION CURVE = ,5505732 SLOPE OF 100-YEAR INTENSITY-DURATION CURVE = .5495536 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT ~ 100.00 1-HOUR INTENSITY (INCH/HOUR) ~ 1,3000 SLOPE OF INTENSITY DURATION CURVE = ,5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AESJ SERIAL No, I00971 VER, 3,3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **************************************************************************** FLOW PROCESS FROM NODE 15.10 TO NODE 15.00 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH ~ 650.00 UPSTREAM ELEVATION ~ 1430.00 DOWNSTREAM ELEVATION = 1189.00 ELEVATION DIFFERENCE ~ 241,00 TC = ,937*(( 650.00**3)/( 241,00)]**,2 15.250 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2,760 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7752 SUBAREA RUNOFF (CFS) 11.55 TOTAL AREA(ACRES) ~ 5.40 TOTAL RUNOFF(CFS) 11. 55 ee, ,I I I I II I I I I ~. I I I I, I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 2 **************************************************************************** FLOW PROCESS FROM NODE 15,00 TO NODE 120,50 IS CODE ~ 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- --------------------------------------------------------~------------~------ DEPTH OF FLOW IN 18,0 INCH PIPE IS 5,2 INCHES PIPEFLOW VELOCITY(FEET/SEC,) = 27,0 UPSTREAM NODE ELEVATION ~ 1189,00 DOWNSTREAM NODE ELEVATION = 1149,50 FLOWLENGTH(FEET) = 100,00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 18,00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) 11,55 TRAVEL TIME(MIN,) = .06 TC(MIN,) = 15.31 "0/( 1)€.f-, N l I "" it. C> /t--r- ,p,,\ 28 ~7j 1 **************************************************************************** FLOW PROCESS FROM NODE 120,50 TO NODE 123.00 IS CODE = 4 >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 18,0 INCH PIPE IS 11,1 INCHES PIPEFLOW VELOCITY(FEET/SEC,) = 10,1 UPSTREAM NODE ELEVATION ~ 1149,50 DOWNSTREAM NODE ELEVATION ~ 1140,00 FLOWLENGTH(FEET) ~ 350.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) ~ 18.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 11,55 TRAVEL TIME(MIN,) ~ ,58 TC(MIN.) = 15,89 **************************************************************************** FLOW PROCESS FROM NODE 120,50 TO NODE 123,00 IS CODE ~ 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.698 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8748 SUBAREA AREA(ACRES) 3,69 SUBAREA RUNOFF(CFS) 8.71 TOTAL AREA(ACRES) - 9,09 TOTAL RUNOFF(CFS) = 20,26 TC(MIN) = 15.89 **************************************************************************** FLOW PROCESS FROM NODE 123,00 TO NODE 124,00 IS CODE ~ 4 >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 48,0 INCH PIPE IS 15,0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 6,0 UPSTREAM NODE ELEVATION ~ 1138,60 DOWNSTREAM NODE ELEVATION ~ 1136.40 FLOWLENGTH(FEET) = 450,00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 20,26 TRAVEL TIME (MIN.) ~ 1.25 TC(MIN,) = 17,14 ~ I I, I I I I I I I I ,I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 3 **************************************************************************** FLOW PROCESS FROM NODE 123.00 TO NODE 124.00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.588 SOIL CLASSIFICATION IS "B" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,6407 SUBAREA AREA(ACRES) 2,65 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 11.74 TOTAL RUNOFF(CFS) ~ TC(MIN) ~ 17.14 4,39 24.66 **************************************************************************** FLOW PROCESS FROM NODE 123,00 TO NODE 124,00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 17.14 RAINFALL INTENSITY (INCH,/HOUR) = 2.59 TOTAL STREAM AREA (ACRES) = 11.74 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 24.66 **************************************************************************** FLOW PROCESS FROM NODE 126,00 TO NODE 125,00 IS CODE ~ 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 700.00 UPSTREAM ELEVATION = 1149,30 DOWNSTREAM ELEVATION ~ 1145,80 ELEVATION DIFFERENCE ~ 3.50 TC ~ ,303*[( 700,00**3)/( 3.50)]**,2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,6775 SUBAREA RUNOFF(CFS) 16.04 TOTAL AREA(ACRES) ~ 5,81 12,018 3,146 TOTAL RUNOFF(CFS) 16,04 **************************************************************************** FLOW PROCESS FROM NODE 126.00 TO NODE 125.00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) ~ 12.02 RAINFALL INTENSITY (INCH./HOUR) ~ 3,15 TOTAL STREAM AREA (ACRES) ~ 5,81 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 16.04 **************************************************************************** FLOW PROCESS FROM NODE 12,10 TO NODE 2 12,00 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**,2 INITIAL SUBAREA FLOW-LENGTH = 250,00 0..0 I , I I I' I I I I I ,I J ,I t I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 4 UPSTREAM ELEVATION 1680.00 DOWNSTREAM ELEVATION 1480,00 ELEVATION DIFFERENCE 200,00 TC = .937*[( 250.00**3)/( 200.00)]**,2 8,922 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3,705 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .8036 SUBAREA RUNOFF (CFS) 9.53 TOTAL AREA(ACRES) ~ 3.20 TOTAL RUNOFF(CFS) 9,53 **************************************************************************** FLOW PROCESS FROM NODE 12,00 TO NODE 13.00 IS CODE - 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1480.00 DOWNSTREAM NODE ELEVATION = 1300.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 280,00 CHANNEL BASE (FEET) ~ 5.00 "Z" FACTOR = 2.000 MANNINGS FACTOR ~ ,035 MAXIMUM DEPTH(FEET) 5.00 CHANNEL FLOW THRU SUBAREA(CFS) = 9.53 FLOW VELOCITY (FEET/SEC) ~ 10,13 FLOW DEPTH(FEET) ,18 TRAVEL TIME (MIN,) = .46 TC(MIN.) = 9.38 **************************************************************************** FLOW PROCESS FROM NODE 12,00 TO NODE 13.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3,604 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,8012 SUBAREA AREA(ACRES) 5.00 SUBAREA RUNOFF (CFS) 14,44 TOTAL AREA(ACRES) 8.20 TOTAL RUNOFF(CFS) ~ 23,96 TC(MIN) = 9.38 **************************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 14.00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1300.00 DOWNSTREAM NODE ELEVATION = 1210.00 CHANNEL LENGTH THRU SUBAREA(FEET) = 200.00 CHANNEL BASE(FEET) ~ 20.00 "Z" FACTOR = 2,000 MANNINGS FACTOR ~ ,035 MAXIMUM DEPTH(FEET) 5,00 CHANNEL FLOW THRU SUBAREA(CFS) = 23.96 FLOW VELOCITY (FEET/SEC) = 8.65 FLOW DEPTH(FEET) ,14 TRAVEL TlME(MIN,) = .39 TC(MIN,) ~ 9,77 **************************************************************************** FLOW PROCESS FROM NODE 13.00 TO NODE 14.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3,525 SOIL CLASSIFICATION IS "DII UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7992 SUBAREA AREA(ACRES) 3.40 SUBAREA RUNOFF (CFS) 9.58 TOTAL AREA(ACRES) 11,60 TOTAL RUNOFF(CFS) ~ 33,54 TC(MIN) ~ 9.77 C\\ I I I I I I I I I I ,I I I I I I' I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 5 **************************************************************************** FLOW PROCESS FROM NODE 14,00 TO NODE 124,00 IS CODE = 5 ---------------------------------------------------------------------------- >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTlME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION ~ 1210.00 DOWNSTREAM NODE ELEVATION ~ 1145.80 CHANNEL LENGTH THRU SUBAREA(FEET) = 420.00 CHANNEL BASE(FEET) ~ 10.00 "Z" FACTOR ~ 2,000 MANNINGS FACTOR ~ .035 MAXIMUM DEPTH (FEET) 5,00 CHANNEL FLOW THRU SUBAREA (CFS) = 33,54 FLOW VELOCITY(FEET/SEC) = 8.41 FLOW DEPTH(FEET) ,37 TRAVEL TIME (MIN.) = .83 TC(MIN,) = 10,60 **************************************************************************** FLOW PROCESS FROM NODE 14.00 TO NODE 124.00 IS CODE = 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3.370 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = ,7951 SUBAREA AREA(ACRES) 2.65 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 14,25 TOTAL RUNOFF(CFS) = TC(MIN) ~ 10,60 7.10 40,65 **************************************************************************** FLOW PROCESS FROM NODE 14,00 TO NODE 124.00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION(MlNUTES) = 10.60 RAINFALL INTENSITY (INCH./HOUR) = 3.37 TOTAL STREAM AREA (ACRES) ~ 14.25 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 40,65 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN,) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 3 24,66 16.04 40,65 17.14 12.02 10.60 2.588 3.146 3,370 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 69.07 71.27 70.04 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 71.27 TIME (MINUTES) 12.018 TOTAL AREA (ACRES) ~ 31.80 **************************************************************************** FLOW PROCESS FROM NODE 124.00 TO NODE 127.00 IS CODE - 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 48,0 INCH PIPE IS 30,5 INCHES PIPEFLOW VELOCITY(FEET/SEC,) ~ 8,5 a;v I I I I I I ,I I I I I I J I I I J .' ' I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 6 1136.00 1133.80 MANNINGS N = ,013 48.00 NUMBER OF 71. 27 TC(MIN,) = 12.86 UPSTREAM NODE ELEVATION DOWNSTREAM NODE ELEVATION FLOWLENGTH(FEET) = 430,00 GIVEN PIPE DIAMETER (INCH) = PIPEFLOW THRU SUBAREA(CFSl TRAVEL TIME (MIN.) = .85 PIPES 1 **************************************************************************** FLOW PROCESS FROM NODE 8 124,00 TO NODE 127,00 IS CODE ~ ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3.030 SOIL CLASSIFICATION IS "C" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7514 SUBAREA AREA(ACRES) 3.58 SUBAREA RUNOFF (CFS) 8.15 TOTAL AREA(ACRES) 35.38 TOTAL RUNOFF(CFS) = 79,42 TC(MIN) ~ 12,86 **************************************************************************** FLOW PROCESS FROM NODE 127,00 TO NODE 129,00 IS CODE ~ 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 48.0 INCH PIPE IS 32,4 INCHES PIPEFLOW VELOCITY(FEET/SEC,) ~ 8.8 UPSTREAM NODE ELEVATION ~ 1133.80 DOWNSTREAM NODE ELEVATION ~ 1133.00 FLOWLENGTH(FEET) = 150,00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) ~ 48,00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 79.42 TRAVEL TlME(MIN,) ~ ,28 TC(MIN,) ~ 13.15 **************************************************************************** FLOW PROCESS FROM NODE 127,00 TO NODE 129,00 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 13.15 RAINFALL INTENSITY (INCH./HOUR) = 2,99 TOTAL STREAM AREA (ACRES) = 35,38 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 79.42 **************************************************************************** FLOW PROCESS FROM NODE 126.00 TO NODE 125.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGElJ**,2 INITIAL SUBAREA FLOW-LENGTH ~ 730.00 UPSTREAM ELEVATION ~ 1149.30 DOWNSTREAM ELEVATION = 1145,80 ELEVATION DIFFERENCE ~ 3.50 TC ~ ,303*[( 730.00**3)/( 3.50)J**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ ,8773 SUBAREA RUNOFF(CFS) 15,81 TOTAL AREA(ACRES) ~ 5.81 12.324 3,102 15.81 TOTAL RUNOFF(CFS) <\? I !I I I I I I I I I. I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 7 **************************************************************************** FLOW PROCESS FROM NODE 125.00 TO NODE 1 128,00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 12.32 RAINFALL INTENSITY (INCH./HOUR) ~ 3,10 TOTAL STREAM AREA (ACRES) = 5,81 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 15,81 **************************************************************************** FLOW PROCESS FROM NODE 125.00 TO NODE 6 128.00 IS CODE = >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1145,80 500,00 = 28.00 1143.80 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 8. DISTANCE FROM CROWN TO CROSS FALL GRADE BREAK 14,00 INTERIOR STREET CROSSFALL(DEClMAL) .020 OUTSIDE STREET CROSS FALL (DECIMAL) ,020 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 1 **TRAVELTlME COMPUTED USING MEAN FLOW (CFS) 19,26 STREETFLOW MODEL RESULTS: NOTE: STREETFLOW EXCEEDS TOP OF CURB. THE FOLLOWING STREET FLOW 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(FEETI = ,69 HALFSTREET FLOODWIDTH{FEET) ~ 26.69 AVERAGE FLOW VELOCITY{FEET/SEC.} ~ 2,63 PRODUCT OF DEPTH&VELOCITY ~ 1.82 STREETFLOW TRAVELTlME(MIN) ~ 3,16 TC(MIN) 15.49 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.736 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8751 SUBAREA AREA(ACRES) = 2,87 SUBAREA RUNOFF (CFS) 6,87 SUMMED AREA(ACRES) = 8.68 TOTAL RUNOFF(CFS) 22,69 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ~ ,72 HALFSTREET FLOODWIDTH(FEET) 28,00 FLOW VELOCITY (FEET/SEC.) = 2.68 DEPTH*VELOCITY = 1.92 **************************************************************************** FLOW PROCESS FROM NODE 22.10 TO NODE 2 22,00 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 750.00 UPSTREAM ELEVATION = 1600,00 DOWNSTREAM ELEVATION ~ 1300,00 ELEVATION DIFFERENCE ~ 300.00 TC = .937*[( 750,OO**3}/( 300.00}]**.2 15.905 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2,697 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF' COEFFICIENT ~ .7727 SUBAREA RUNOFF(CFS) 6.88 TOTAL AREA (ACRES) ~ 3,30 TOTAL RUNOFF{CFS) 6,88 OA I I.. I I I " I I I I' . I c, .' I ~, . I -, I' I " I l PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa2e 8 **************************************************************************** FLOW PROCESS FROM NODE 22,00 TO NODE 5 23,00 IS CODE ~ >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION ~ 1300,00 DOWNSTREAM NODE ELEVATION = 1200.00 CHANNEL LENGTH THRU SUBAREA (FEET) = 600.00 CHANNEL BASE(FEET) ~ 20.00 "Z" FACTOR = 2,000 MANNINGS FACTOR ~ .035 MAXIMUM DEPTH (FEET) 2,00 CHANNEL FLOW THRU SUBAREA (CFS) = 6.88 FLOW VELOCITY (FEET/SEC) = 3.11 FLOW DEPTH(FEET) ,11 TRAVEL TIME (MIN.) ~ 3.22 TC(MIN,) = 19,12 **************************************************************************** FLOW PROCESS FROM NODE 22,00 TO NODE 8 23,00 IS CODE = >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) 2.437 SOIL CLASSIFICATION IS liD" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ .7612 SUBAREA AREA(ACRES) 8.30 SUBAREA RUNOFF(CFS) TOTAL AREA(ACRES) 11.60 TOTAL RUNOFF(CFS) = TC(MIN) ~ 19,12 15,40 22.27 **************************************************************************** FLOW PROCESS FROM NODE 23.00 TO NODE 129.00 IS CODE = 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION = 1200.00 DOWNSTREAM NODE ELEVATION = 1143,00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 330.00 CHANNEL BASE (FEET) ~ 20,00 "Z" FACTOR ~ 2.000 MANNINGS FACTOR ~ .035 MAXIMUM DEPTH (FEET) 2,00 CHANNEL FLOW THRU SUBAREA (CFS) ~ 22,27 FLOW VELOCITY (FEET/SEC) = 5,37 FLOW DEPTH(FEET) ,20 TRAVEL TIME (MIN.) ~ 1.02 TC(MIN.) ~ 20,14 **************************************************************************** FLOW PROCESS FROM NODE 23,00 TO NODE 129.00 IS CODE ~ 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100,00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2.368 SOIL CLASSIFICATION IS liD" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7578 SUBAREA AREA(ACRES) 1.90 SUBAREA RUNOFF(CFS) TOTAL AREA (ACRES) 13.50 TOTAL RUNOFF(CFS) ~ TC(MIN) ~ 20.14 3,41 25.68 **************************************************************************** FLOW PROCESS FROM NODE 23.00 TO NODE 1 129,00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) ~ 20,14 RAINFALL INTENSITY (INCH,/HOUR) ~ 2,37 ~~ I I I I I I I I I I I I I I I I I I I 86/8Z/L. WlIO.LS lIV:!IA 001 N'vrnu WlIO.LS 8-:!l!III'I y-y:nrv L598U\IcI UN'V 1t'L.81 WcI-fLt1l1 WcI 631111cl 8JN8n~~NOJ ili~ (S~J)~~ONnM WV8MiliS ~iliOili OS'El ~ (S8MJvl V3MV WV8MiliS ~iliOili 89'SZ ~~.~............................................................++..++++++++ 8aON WOM~ SS8JOMd MO~~ 8aON Oili or 81 ~ 8aOJ SI 00' 81 Z ---------------------------------------------------------------------------- >>>>>SISX~NV ~8MVEns ~IiliINI aOHili8W ~OIiliVM<<<<< ============================================================================ 08'L = (S8MJ~)V8MV ~iliOili SL'91 ~ (S~Jl~~ONnM V8MVEns SSLL' = iliN8IJI~~80J ~~ONnM a8HSM8iliVM a8dO~8A8aNn ..a.. SI NOlili'<f.)I~ISS\i'IJ ~IOS (MnOH/HJNIlxiliISN8iliNI ~~~NIVM MV8X 00'001 Z'~~((OO'OIE l/(E~~OO'OOL )]~LE6' ~ Jili OO'OIE ~ 8JN8M8~~Ia NOliliVA8~8 00'06~1 ~ NOliliVA8~8 WV8MiliSNMoa 00'0081 = NOliliVA8~8 WV8MiliSdn OO'OOL = Hili9N8~-MO~~ V8MVEns ~IiliINI Z'~~[(89NVHJ NOliliVA8~8l/(E~~Hili9N8~)]~~ = Jili M8AOJ a009 HiliIM a8dO~8A8aNn :SI iliN8WdO~8A8a W<!O~INn V8MVans ~IiliINI a=sSif 69L'Z 091'S1 SL '91 (S~Jl~~ONnM ~iliOili .......~.................................................................... 8aON WOM~ SS8JOMd MO~~ 8aON Oili 00'81 = 8aOJ SI 00'61 S ---------------------------------------------------------------------------- >>>>>V8MVEns nMHili 8Wlili~8AVMili<<<<< >>>>>MO~~ ~8NNVHJ-~aIOZ8dVMili 8ilindWOJ<<<<< ============================================================================ E9'S1 ~ ('NIWlJili L~' ~ ('NIWl8WU ~8AVMili 81' ~ (ili88~lHilid8a MO~~ 06'8 ~ (J8S/ili88~)XiliIJO~8A MO~~ SL'91 = (S~JlV8MVans nMHili MO~~ ~8NNVHJ OO'S ~ (ili88~lHilid8a wnwIXVW SEO' ~ MOiliJV~ S9NINNVW 000'17 ~ MOiliJV~ ..Z.. 00'01 ~ (ili88~l8Sifa ~8NNVHJ OO'OSZ ~ (ili88~lv8MVans nMHili Hili9N8~ ~8NNVHJ OO'OO~1 ~ NOliliVA8~8 8GON WV8MiliSNMOG 00'06~1 ~ NOliliVA8~8 8aON WV8MiliSdn ~~~~~~~.....~....~....~......~...~~....~...~...~............................ 8aON WOM~ SS8JOMd MO~~ 8aON Oili 00'81 ~ 8aOJ SI 00' 61 8 ---------------------------------------------------------------------------- >>>>>MO~~ ~d 8NI~NIVW Oili V8MV8ns ~o NOlililaav<<<<< ============================================================================ (9'SI = (NIWlJili = (S~Jl~~ONnM ~iliOili 08'11 = (S8MJV)V8HV ~iliOili (S~J)~~ONTIM V8MVans OO'~ = (S8MJ~lv8MV ~8MVans LELL' = iliN8IJI~~80J ~~ONnM a8HSM8iliVM a8dO~8A8aNn ..a.. SI NOlili~::lI~ISS\i'IJ ~IOS EZL'Z ~ (MnOH/HJNIlxiliISN8iliNI ~~~NIVM MV8X 00'001 L l' SZ n' 8 ............................................................................ 8aON WOM~ SS8JOMd MO~~ 8aON Oili 00.61 = 8aOJ SI OO'OZ S ---------------------------------------------------------------------------- >>>>>V8MV8ns nMHili 2Wlili~8AVMili<<<<< >>>>>MO~~ ~8NNVHJ-~aIOZ8dVMili 8ilindWOJ<<<<< ============================================================================ EE'91 ~ ('NIWlJili OC = ('NIWl8WU ~8AVMili LZ' = (ili88~)Hilid~a MO~~ LE'8 ~ (J8S/ili88~lxiliIJO~8A MO~~ Ll'SZ ~ (S~J)~8MV8ns nMHili MO~~ ~8NNVHJ OO'Z ~ (ili8~~)Hilid8a wnwIXVW SEO' = MOiliJ~a S9NINNVW OOO'S = <IOiliJV~ ..Z.. 00'01 ~ (ili88~l8Sif8 ~8NNVHJ OO'OSE = (ili88~lv8MV8ns nMHili Hili9N8~ ~8NNVHJ 00'00(1 = NOlili~A8~8 8aON WV3MiliSNMoa OO'OO~1 ~ NOliliVA8~8 8aON WV8MiliSdn ~'o I I I I I ,I I I I I , I I I I I I ,'I I 86/84,/L WlIO.LS 1IV3X 001 Nvrna WlIOl.S 8-3NI'} v-v:iIlrv L.S98twcl a.NV ItL.8'l WcI-rL.t8'l WcI 01 ;J1I8c1 ~~~.~~~~~~~~~~~~~~.~~~~~.................................................... aaON WO~~ SSa~O~d MO~~ aaON 0_1 00'61 = aao~ SI OO'OZ 8 ---------------------------------------------------------------------------- >>>>>MO~~ ~ad aNI~NI~ 0_1 ~a~ns ~O NOI_1Ia~<<<<< ============================================================================ ff'91 = (NIWl~_1 = (s~~l~~ONn~ ~_10_1 01'91 = (sa~~~l~a~ ~_10_1 (s~~l~~ONn~ ~a~ns Of'v = (sa~~~l~a~ ~a~Hns lILL" = _1NaI~I~~ao~ ~~ONn~ aaHS~a_1~M aadO~aAaGNn "a" SI NOI_1~~I~IS5'\i'I~ ~IOS 8,9'Z = (~OH/H~NIlx_1ISNa_1NI ~~~NI~ ~ax 00'001 66"ff 18'8 ............................................................................ aaON WO~~ ssa~O~d Mo~a aaON 0_1 OO'OZ = aao~ SI 00"1 Z , ---------------------------------------------------------------------------- >>>>>~a~ns n~H_1 awI_1~aA~_1<<<<< >>>>>Mo~a ~a~~-~aIOZad~_1 a_1ndwO~<<<<< ============================================================================ 88'Ll = ("NIWl~_1 ,S"1 = ('NlwlawI_1 ~aA~_1 6f' = (_1aaalH_1daa Mo~a f,'L = (~as/_1aaa)X-LIJo~aA Mo~a 66"ff = (sa~l~a~Hns n~H_1 Mo~a ~a~~ oo'v = (_1aaalH_1daa wnwI~ ,fO' - ~O_1~~a SBNI~ OOO'v = ~O_1~~a "z" 00'01 = (_1aaa):ksw ~a~~ OO"OOL = (_1aaal~a~ns n~H_1 H_1BNa~ ~a~~ OO'OIZI = NOI-L~Aa~a aaON WVa~_1SNMOa OO"OOfl = NOI_1~Aa~a aaON WVa~_1Sdn ........~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ aaON wo~a ssa~O~d MO~~ aaON 0_1 00' OZ = aao~ SI OO"IZ 8 ---------------------------------------------------------------------------- >>>>>Mo~a ~ad aNI~NI~ 0_1 ~a~Hns ao NOI_1Ia~<<<<< ============================================================================ 88'Ll = (NIWl~_1 = (sa~laaONn~ ~_10_1 Ov'OZ = (sa~~~)~a~ ~_10_1 (sa~laaoNn~ ~a~ns Of'v = (sa~~~l~a~ ~a~ans ,,9L" = _1NaI~Iaaao~ aaONn~ aaHS~a_1~M aadO~aAaaNn ..a.. SI NOI_1~~IaIS5'\i'I~ ~IOS 6ZS"Z = (~nOH/H~NIlx_1ISNa_1NI ~~~aNI~ ~ax 00'001 If 'ZV n" 8 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ aaON wo~a ssa~O~d Mo~a aaON 0_1 OO'1Z = aao~ SI 00'6Z1 S ---------------------------------------------------------------------------- >>>>>~a~s n~H_1 awI_1~aA~_1<<<<< >>>>>Mo~a ~a~~-~aIOZad~_1 a_1ndwO~<<<<< ============================================================================ 66'81 = ("NIW)~_1 11'1 = ('NIW)awn ~aA~_1 Of' = (_1aaalH_1daa Mo~a fL"9 = (~as/_1aaalX_1I~O~aA MO~~ If'Zv = (sa~)~a~HnS nHH_1 Mo~a ~a~~ OO"Z = (_1aaalH_1daa wnwI~ Sf 0' = ~O_1~~a SBNI~ OOO'V = ~O_1~~a ..z.. OO'OZ = (_1aaalaSVH ~:;rnmrn~ OO'OSv = (_1aaa)~a~ns n~H_1 H_1BNa~ ~a~~ OO'fvll = NOI_1~Aa~a aaON WVa~_1SNMOa OO"OIZI = NOI_1~Aa~a aaON WVa~_1Sdn ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ aaON wo~a ssa~O~d Mo~a aaON 0_1 OO'IZ = aao~ SI 00"6Z1 8 ---------------------------------------------------------------------------- >>>>>Mo~a ~ad aNI~NI~ 0_1 ~a~s ao NOI_1Ia~<<<<< ============================================================================ 919L' = _1NaI~Iaaao~ aaONn~ aaHS~a_1~M aadO~aAaaNn lIall 81 NOI.r.'itOI~ISS\t'1J '1IOS 9vv"Z = (~noH/H~NI)X_1ISNa-1NI ~~aNI~ ~ax 00'001 \..'0 I. I I I I I I I I I I t I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 SUBAREA AREA (ACRES) TOTAL AREA (ACRES) TC(MIN) = 18,99 1. 76 22.16 SUBAREA RUNOFF (CFS ) TOTAL RUNOFF (CFS) ~ = 3.28 45.59 Pa2e 11 FLOW PROCESS FROM NODE 129.00 IS CODE = **************************************************************************** 1 21. 00 TO NODE ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 4 ARE: TIME OF CONCENTRATION (MINUTES) ~ 18.99 RAINFALL INTENSITY (INCH,/HOUR) = 2.45 TOTAL STREAM AREA (ACRES) ~ 22.16 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 45,59 FLOW PROCESS FROM NODE 28.00 IS CODE = **************************************************************************** 2 28,10 TO NODE >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS: UNDEVELOPED WITH GOOD COVER TC - K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1739.50 DOWNSTREAM ELEVATION = 1580,00 ELEVATION DIFFERENCE ~ 159.50 TC ~ .937*[( 1000,00**3)/( 159,50)]**.2 100,00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ ,7536 SUBAREA RUNOFF (CFS) 11. 21 TOTAL AREA (ACRES) ~ 6,50 21.447 2.288 TOTAL RUNOFF (CFS) 11. 21 FLOW PROCESS FROM NODE 28.00 TO NODE 27,00 IS CODE = **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION = 1580.00 DOWNSTREAM NODE ELEVATION = 1300.00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 1000,00 CHANNEL BASE(FEET) = 25.00 "z" FACTOR = 5,000 MANNINGS FACTOR ~ .035 MAXIMUM DEPTH (FEET) 2.00 CHANNEL FLOW THRU SUBAREA (CFS) ~ 11.21 FLOW VELOCITY (FEET/SEC) = 4.01 FLOW DEPTH(FEET) ,11 TRAVEL TIME(MIN.) = 4,15 TC(MIN,) = 25,60 FLOW PROCESS FROM NODE 27.00 IS CODE = **************************************************************************** 8 28,00 TO NODE >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 2.076 SOIL CLASSIFICATION IS "0" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT ~ .7413 SUBAREA AREA(ACRES) 29.70 SUBAREA RUNOFF(CFS) TOTAL AREA (ACRES) 36.20 TOTAL RUNOFF (CFS) = TC(MIN) ~ 25.60 45,70 56.91 G"tb I I I I I I I I I I I I I I I I I 1- I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pale 12 FLOW PROCESS FROM NODE 27,00 TO NODE 35.00 IS CODE ~ **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM NODE ELEVATION = 1300.00 DOWNSTREAM NODE ELEVATION ~ 1215,00 CHANNEL LENGTH THRU SUBAREA (FEET) ~ 1000,00 CHANNEL BASE (FEET) = 25,00 "z" FACTOR ~ 4,000 MANNINGS FACTOR ~ ,035 MAXIMUM DEPTH(FEET) 5.00 CHANNEL FLOW THRU SUBAREA (CFS) = 56.91 FLOW VELOCITY (FEET/SEC) = 5.79 FLOW DEPTH(FEET) .37 TRAVEL TIME (MIN.) ~ 2.88 TC(MIN.) ~ 28,48 FLOW PROCESS FROM NODE 27,00 TO NODE 35,00 IS CODE ~ **************************************************************************** 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 1,958 SOIL CLASSIFICATION IS "D" UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7335 SUBAREA AREA(ACRES) 13,00 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 49,20 TOTAL RUNOFF(CFS) = TC(MIN) ~ 28,48 18.67 75.58 FLOW PROCESS FROM NODE 35.00 TO NODE 131,00 IS CODE = **************************************************************************** 5 >>>>>COMPUTE TRAPEZOIDAL-CHANNEL FLOW<<<<< >>>>>TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM NODE ELEVATION ~ 1215.00 DOWNSTREAM NODE ELEVATION ~ 1190.00 CHANNEL LENGTH THRU SUBAREA(FEET) ~ 250.00 CHANNEL BASE(FEET) ~ 20.00 "Z" FACTOR ~ 4,000 MANNINGS FACTOR = ,035 MAXIMUM DEPTH(FEET) 2.00 CHANNEL FLOW THRU SUBAREA (CFS) = 75,58 FLOW VELOCITY (FEET/SEC) ~ 7,65 FLOW DEPTH(FEET) .45 TRAVEL TIME (MIN.) = ,54 TC(MIN,) = 29,03 FLOW PROCESS FROM NODE 35,00 TO NODE 131,00 IS CODE = **************************************************************************** 8 ===~~~~~~=;;;;~~;~;~~=;~;;~;;;;7;~~=/=~;;~~~~~~~;;;~~~~~=======~:7l~~=~~~v~ 6& SOIL CLASSIFICATION IS "D" \J '<!J OF TPk 2E743 UNDEVELOPED WATERSHED RUNOFF COEFFICIENT = .7321 SUBAREA AREA(ACRES) 1.37 SUBAREA RUNOFF (CFS) TOTAL AREA(ACRES) 50.57 TOTAL RUNOFF(CFS) ~ TC(MIN) = 29.03 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< 1. 94 77.52 FLOW PROCESS FROM NODE 131. 00 TO NODE 129,00 IS CODE ~ **************************************************************************** 4 >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 36.0 INCH PIPE IS 15,8 INCHES PIPEFLOW VELOCITY(FEET/SEC,) ~ 26.0 ~ I I I I I I I I I I I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 UPSTREAM NODE ELEVATION DOWNSTREAM NODE ELEVATION FLOWLENGTH(FEET) = 600.00 GIVEN PIPE DIAMETER (INCH) = PIPEFLOW THRU SUBAREA (CFS) TRAVEL TIME (MIN.) = .38 1190.00 1133.00 MANNINGS N = .013 36.00 NUMBER OF 77.52 TC(MIN.) = 29.41 PIPES 1 Pa~e 13 FLOW PROCESS FROM NODE 129.00 IS CODE - **************************************************************************** 1 131.00 TO NODE ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 5 ARE: TIME OF CONCENTRATION (MINUTES) ~ 29.41 RAINFALL INTENSITY (INCH./HOUR) ~ 1.92 TOTAL STREAM AREA (ACRES) = 50.57 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 77.52 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) 1 79.42 13.15 2.994 2 15.81 12.32 3.102 3 25.68 20.14 2.368 4 45.59 18.99 2.446 5 77.52 29.41 1. 924 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 5 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 177.67 168.04 197.81 197.22 195.07 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 197.81 TIME (MINUTES) 20.145 TOTAL AREA(ACRES) ~ 127.42 LINE: f6 4T,fM 2'0473 FLOW PROCESS FROM NOpE 129.00 TO NODE 129.10 IS CODE ~ **************************************************************************** 4 >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PIPEFLOW VELOCITY(FEET/SEC.) = 15.7 UPSTREAM NODE ELEVATION = 1133.00 DOWNSTREAM NODE ELEVATION ~ 1132.75 FLOWLENGTH(FEET) = 50.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) ~ 48.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 197.81 TRAVEL TIME(MIN.) ~.05 TC(MIN.) ~ 20.20 FLOW PROCESS FROM NODE 129.10 IS CODE = **************************************************************************** 1 129.10 TO NODE >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ------------------------------------------------~--------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 20.20 RAINFALL INTENSITY (INCH./HOUR) = 2.36 TOTAL STREAM AREA (ACRES) ~ 127.42 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 197.81 ,cO II II I I I I I I I I I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LlNE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 14 FLOW PROCESS FROM NODE 130.10 TO NODE 130.00 IS CODE = **************************************************************************** 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 600.00 UPSTREAM ELEVATION = 1182.00 DOWNSTREAM ELEVATION = 1144.00 ELEVATION DIFFERENCE ~ 38.00 TC ~ .303*[( 600.00**3)/( 38.00)]**.2 6.800 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 4.301 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8824 SUBAREA RUNOFF(CFS) 3.99 TOTAL AREA(ACRES) ~ 1.05 TOTAL RUNOFF(CFS) 3.99 FLOW PROCESS FROM NODE 130.10 TO NODE 130.00 IS CODE = **************************************************************************** 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 6.80 RAINFALL INTENSITY (INCH./HOUR) ~ 4.30 TOTAL STREAM AREA (ACRES) = 1.05 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 3.99 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) 1 2 197.81 3.99 20.20 6.80 2.365 4.301 ---------------------------------------------------------------------------- RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 200.00 70.58 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 200.00 TIME (MINUTES) 20.198 TOTAL AREA(ACRES) ~ 128.47 FLOW PROCESS FROM NODE 129.10 TO NODE 132.00 IS CODE = **************************************************************************** 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 48.0 INCH PIPE IS 28.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 26.3 UPSTREAM NODE ELEVATION = 1133.50 DOWNSTREAM NODE ELEVATION ~ 1084.10 FLOWLENGTH(FEET) ~ 950.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) = 48.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 200.00 TRAVEL TIME(MIN.) ~ .60 TC(MIN.) = 20.80 ,\0'- I I I I I I I I I I I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 15 **************************************************************************** FLOW PROCESS FROM NODE 129.10 TO NODE 132.00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ============================================================================ 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 7.61 TOTAL AREA (ACRES) 136.08 TC (MIN) ~ 20.80 2.327 COEFFICIENT = .8721 SUBAREA RUNOFF(CFS) 15.44 TOTAL RUNOFF(CFS) = 215.44 **************************************************************************** FLOW PROCESS FROM NODE 129.10 TO NODE 132.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 20.80 RAINFALL INTENSITY (INCH./HOUR) ~ 2.33 TOTAL STREAM AREA (ACRES) ~ 136.08 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 215.44 **************************************************************************** FLOW PROCESS FROM NODE 128.00 TO NODE 133.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 950.00 UPSTREAM ELEVATION ~ 1143.20 DOWNSTREAM ELEVATION ~ 1092.00 ELEVATION DIFFERENCE ~ 51.20 TC = .303*[( 950.00**3)/( 51.20)]**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8806 SUBAREA RUNOFF (CFS) 19.14 TOTAL AREA(ACRES) ~ 5.69 8.440 3.820 TOTAL RUNOFF(CFS) 19.14 **************************************************************************** FLOW PROCESS FROM NODE 128.00 TO NODE 133.00 IS CODE ~ 1 -------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 8.44 RAINFALL INTENSITY (INCH./HOUR) ~ 3.82 TOTAL STREAM AREA (ACRES) = 5.69 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 19.14 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) ---------------------------------------------------------------------------- 1 2 215.44 19.14 20.80 8.44 2.327 3.820 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. v>"V I I I I I I I I I I I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LlNE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 16 VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 227.10 106.56 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 227.10 TIME (MINUTES) 20.801 TOTAL AREA(ACRES) - 141.77 LINFL t3 AI VJ I N C I-tE5,'::VC '<:l 8 51 227. '" C:-{.S **************************************************************************** FLOW PROCESS FROM NODE 132.00 TO NODE 4 200.00 IS CODE = ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 54.0 INCH PIPE IS 42.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ~ 17.0 UPSTREAM NODE ELEVATION ~ 1084.00 DOWNSTREAM NODE ELEVATION ~ 1073.00 FLOWLENGTH(FEET) = 680.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER(INCH) = 54.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 227.10 TRAVEL TIME (MIN.) = .67 TC(MIN.) ~ 21.47 **************************************************************************** FLOW PROCESS FROM NODE 132.00 TO NODE 200.00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 1.01 TOTAL AREA(ACRES) 142.78 TC(MIN) = 21.47 2.287 COEFFICIENT ~ .8717 ~ SUBAREA RUNOFF (CFS) ~ ~ :C TOTAL RUNOFF(CFS) ~ 229.12 -=-t:J"_\ 10 f.JTJ/!.( C~ **************************************************************************** FLOW PROCESS FROM NODE 132.00 TO NODE 200.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 21.47 RAINFALL INTENSITY (INCH./HOUR) ~ 2.29 TOTAL STREAM AREA (ACRES) = 142.78 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 229.12 **************************************************************************** FLOW PROCESS FROM NODE 201.00 TO NODE 200.00 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC = K*[(LENGTH**3)/(ELEVATION CHANGE)J**.~ INITIAL SUBAREA FLOW-LENGTH = 1000.00 UPSTREAM ELEVATION = 1212.00 DOWNSTREAM ELEVATION = 1073.00 ELEVATION DIFFERENCE = 139.00 TC ~ .303*[( 1000.00**3)/( 139.00)J**.2 7.128 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 4.192 SOIL CLASSIFICATION IS liB" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8820 SUBAREA RUNOFF (CFS) 28.13 TOTAL AREA(ACRES) = 7.61 TOTAL RUNOFF(CFS) ;-01'..) ~(L WV, FYi- oifiil V2T"';, M'lT A P""'-J 28.13 \01> I I I I I I I I I I II I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 17 **************************************************************************** FLOW PROCESS FROM NODE 201.00 TO NODE 200.00 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 7.13 RAINFALL INTENSITY (INCH./HOUR) ~ 4.19 TOTAL STREAM AREA (ACRES) ~ 7.61 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 28.13 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) ---------------------------------------------------------------------------- 1 2 229.12 28.13 21.47 7.13 2.287 4.192 .<- RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 244.47 104.21 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 244.47 TIME (MINUTES) 21.468 TOTAL AREA(ACRES) ~150.39 ,i-1'j)J. 0 = 2- +~.47 - 2.-;27.1 . 7. 37e.J,<: **************************************************************************** FLOW PROCESS FROM NODE 200.00 TO NODE 202.00 IS CODE = 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 60.0 INCH PIPE IS 32.7 INCHES PIPEFLOW VELOCITY (FEET/SEC.) = 22.3 UPSTREAM NODE ELEVATION = 1073.00 DOWNSTREAM NODE ELEVATION ~ 1068.00 FLOWLENGTH(FEET) ~ 170.00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 60.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 244.47 TRAVELTIME(MIN.) ~ .13 TC(MIN.) = 21.59 **************************************************************************** FLOW PROCESS FROM NODE 200.00 TO NODE 202.00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION(MINUTES) ~ 21.59 RAINFALL INTENSITY (INCH./HOUR) ~ 2.28 TOTAL STREAM AREA (ACRES) ~ 150.39 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 244.47 **************************************************************************** FLOW PROCESS FROM NODE 202.10 TO NODE 202.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 \c:A I I I I I I I I I I I I I I I I I I I PM 28473-PM 28741 AND PM28657 AREA-A LINE-B STORM DRIAN 100 YEAR STORM 7/28/98 Pa~e 18 INITIAL SUBAREA FLOW-LENGTH UPSTREAM ELEVATION ~ 1180.00 DOWNSTREAM ELEVATION ~ 1068.00 ELEVATION DIFFERENCE ~ 112.00 TC = .303*[( 1000.00**3)/( 112.00)J**.2 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8817 SUBAREA RUNOFF (CFS) 46.52 TOTAL AREA(ACRES) ~ 12.89 1000.00 7.443 4.093 TOTAL RUNOFF(CFS) 46.52 **************************************************************************** FLOW PROCESS FROM NODE 202.10 TO NODE 202.00 IS CODE = 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- --------------------------------------------------~------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 7.44 RAINFALL INTENSITY (INCH./HOUR) = 4.09 TOTAL STREAM AREA (ACRES) = 12.89 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 46.52 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) 1 2 244.47 46.52 ^ "7 -VI ?- ~ ^ ' ,<::;. '- /./':0 ,- ("{j.e7-=- 2f".c-(.Jc""> ~ 21. 59 7.44 2.279 4.093 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 270.37 130.78 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 270.37 TIME (MINUTES) 21.595 TOTAL AREA (ACRES) = 163.28 1..-1\',,- & gp[;('-'-'G7.Cf3 '2.70.')7 e-f5 **************************************************************************** FLOW PROCESS FROM NODE 202.00 TO NODE 3 206.00 IS CODE ~ >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING COMPUTER-ESTIMATED PIPESIZE (NON-PRESSURE FLOW)<<<<< DEPTH OF FLOW IN 57.0 INCH PIPE IS 41.8 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ~ 19.4 UPSTREAM NODE ELEVATION = 1068.00 DOWNSTREAM NODE ELEVATION ~ 1057.00 FLOWLENGTH(FEET) ~ 550.00 MANNINGS N .013 ESTIMATED PIPE DIAMETER (INCH) 57.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA (CFS) = 270.37 TRAVEL TIME (MIN.) ~ .47 TC(MIN.) 22.07 LI'-!TL E> Ow IJC-r"", Wi ltIl{E.A 1 END OF RATIONAL METHOD ANALYSIS ? \O'? I I I I I I 'I 'I .1 I I I i I I I I I I I I I LINE C 100 YEAR HYDROLOGY \010 I I. I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 1 ============================================================================ RATIONAL METHOD HYDROLOGY COMPUTER PROGRAM BASED ON RIVERSIDE COUNTY FLOOD CONTROL & WATER CONSERVATION DISTRICT (RCFC&WCD) 1978 HYDROLOGY MANUAL ============================================================================ <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> (C) Copyright 1982,1986 Advanced Engineering Software [AESJ Especially prepared for: <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **********DESCRIPTION OF RESULTS******************************************** * AREA CLINE C AT REMINGTON AVE. * * PM 28657 100 YEAR STORM * * FILE: AREA-C.DAT AREA-C. RES SDCI00.TXT * **************************************************************************** USER SPECIFIED HYDROLOGY AND HYDRAULIC MODEL INFORMATION: USER SPECIFIED STORM EVENT (YEAR) = 100.00 SPECIFIED MINIMUM PIPE SIZE (INCH) = 18.00 SPECIFIED PERCENT OF GRADIENTS (DECIMAL) TO USE FOR FRICTION SLOPE .90 10-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) ~ 2.360 10-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) = .880 100-YEAR STORM 10-MINUTE INTENSITY (INCH/HOUR) 3.480 100-YEAR STORM 60-MINUTE INTENSITY (INCH/HOUR) 1.300 SLOPE OF 10-YEAR INTENSITY-DURATION CURVE ~ .5505732 SLOPE OF 100-YEAR INTENSITY-DURATION CURVE ~ .5495536 COMPUTED RAINFALL INTENSITY DATA: STORM EVENT = 100.00 I-HOUR INTENSITY (INCH/HOUR) ~ 1.3000 SLOPE OF INTENSITY DURATION CURVE ~ .5496 RCFC&WCD HYDROLOGY MANUAL "C"-VALUES USED <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Advanced Engineering Software [AES] SERIAL No. I00971 VER. 3.3C RELEASE DATE: 2/20/86 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> **************************************************************************** FLOW PROCESS FROM NODE 223.00 TO NODE 2 224.00 IS CODE = >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)] **.2 INITIAL SUBAREA FLOW-LENGTH ~ 650.00 UPSTREAM ELEVATION = 1093.00 DOWNSTREAM ELEVATION = 1080.00 ELEVATION DIFFERENCE ~ 13.00 TC ~ .303*[( 650.00**3)/( 13.00)J**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8802 SUBAREA RUNOFF(CFS) 2.56 TOTAL AREA(ACRES) ~ .78 8.842 3.724 2.56 TOTAL RUNOFF (CFS) \0....... I I I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 2 **************************************************************************** FLOW PROCESS FROM NODE 224.00 TO NODE 225.00 IS CODE ~ 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION ~ STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1080.00 600.00 ~ 28.00 DOWNSTREAM ELEVATION ~ CURB HEIGTH(INCHES) ~ 8. 1062.00 DISTANCE FROM CROWN TO CROSSFALL GRADEBREAK INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) .020 14.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 1 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 12.45 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .46 HALFSTREET FLOODWIDTH(FEET) = 15.31 AVERAGE FLOW VELOCITY(FEET/SEC.) = 4.91 PRODUCT OF DEPTH&VELOCITY ~ 2.28 STREETFLOW TRAVELTIME (MIN) = 2.04 TC(MIN) 10.88 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 3.323 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8784 SUBAREA AREA(ACRES) = 6.72 SUBAREA RUNOFF(CFS) 19.61 SUMMED AREA(ACRES) ~ 7.50 TOTAL RUNOFF (CFS) 22.17 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) ~ .53 HALFSTREET FLOODWIDTH(FEET) 18.81 FLOW VELOCITY(FEET/SEC.) = 5.95 DEPTH*VELOCITY ~ 3.18 **************************************************************************** FLOW PROCESS FROM NODE 225.00 TO NODE 226.00 IS CODE ~ 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION ~ STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1062.00 450.00 ~ 28.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 8. 1055.00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK 14.00 INTERIOR STREET CROSS FALL (DECIMAL) .020 OUTSIDE STREET CROSS FALL (DECIMAL) .021 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 28.68 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) = .53 HALFSTREET FLOODWIDTH(FEET) ~ 17.94 AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 4.09 PRODUCT OF DEPTH&VELOCITY ~ 2.17 STREETFLOW TRAVELTIME (MIN) ~ 1.83 TC(MIN) 12.71 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.050 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8770 SUBAREA AREA (ACRES) ~ 4.86 SUBAREA RUNOFF(CFS) 13.00 SUMMED AREA(ACRES) ~ 12.36 TOTAL RUNOFF (CFS) 35.17 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) ~ .56 HALFSTREET FLOODWIDTH(FEET) 19.69 FLOW VELOCITY(FEET/SEC.) 4.23 DEPTH*VELOCITY ~ 2.38 \oCO I I I I I I I I I I I I I I I I I 1- I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 3 FLOW PROCESS FROM NODE 227.00 IS CODE ~ **************************************************************************** 6 226.00 TO NODE ---------------~------------------------------------------------------------ >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< UPSTREAM ELEVATION ~ STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1031. 00 ============================================================================ 1055.00 650.00 - 28.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) = 8. DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) .020 14.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 42.86 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .52 HALFSTREET FLOODWIDTH(FEET) = 17.94 AVERAGE FLOW VELOCITY (FEET/SEC.) = 6.29 PRODUCT OF DEPTH&VELOCITY ~ 3.25 STREETFLOW TRAVELTIME (MIN) = 1.72 TC(MIN) 14.43 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) ~ 2.845 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8758 SUBAREA AREA(ACRES) ~ 6.16 SUBAREA RUNOFF(CFS) 15.35 SUMMED AREA(ACRES) ~ 18.52 TOTAL RUNOFF(CFS) 50.52 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ~ .55 HALFSTREET FLOODWIDTH(FEET) 19.69 FLOW VELOCITY (FEET/SEC.) = 6.21 DEPTH*VELOCITY ~ 3.43 Ai c. g. 51'"'" ,,7+<>0 A~/"'(?{'"tJ1.J J'(vll. SC>. 51 Dft FLOW PROCESS FROM NODE 220.00 IS CODE ~ **************************************************************************** 4 227.00 TO NODE >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 30.0 INCH PIPE IS 14.5 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 21.4 UPSTREAM NODE ELEVATION ~ 1031.00 DOWNSTREAM NODE ELEVATION ~ 1025.00 FLOWLENGTH(FEET) = 80.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) ~ 30.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA(CFS) 50.52 TRAVEL TIME(MIN.) = .06 TC(MIN.) = 14.49 FLOW PROCESS FROM NODE 220.00 IS CODE ~ **************************************************************************** 1 227.00 TO NODE >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 14.49 RAINFALL INTENSITY (INCH./HOUR) = 2.84 TOTAL STREAM AREA (ACRES) ~ 18.52 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 50.52 \00.. I I I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 4 **************************************************************************** FLOW PROCESS FROM NODE 222.00 TO NODE 221.00 IS CODE ~ 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 750.00 UPSTREAM ELEVATION = 1069.00 DOWNSTREAM ELEVATION = 1062.00 ELEVATION DIFFERENCE = 7.00 TC ~ .303*[( 750.00**3)/( 7.00)]**.2 10.904 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3.318 SOIL CLASSIFICATION IS "BII COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8784 SUBAREA RUNOFF(CFS) 18.95 TOTAL AREA (ACRES) ~ 6.50 TOTAL RUNOFF (CFS) 18.95 **************************************************************************** FLOW PROCESS FROM NODE 221. 00 TO NODE 221.10 IS CODE ~ 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREETFLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION = STREET LENGTH (FEET) ~ STREET HALFWIDTH(FEET) 1062.00 500.00 ~ 28.00 DOWNSTREAM ELEVATION ~ CURB HEIGTH(INCHES) ~ 8. 1049.00 DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK INTERIOR STREET CROSS FALL (DECIMAL) .020 OUTSIDE STREET CROSSFALL(DECIMAL) .020 16.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 27.28 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .48 HALFSTREET FLOODWIDTH(FEET) ~ 16.25 AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 4.82 PRODUCT OF DEPTH&VELOCITY ~ 2.33 STREETFLOW TRAVELTIME(MIN) ~ 1.73 TC(MIN) 12.63 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 3.060 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8770 SUBAREA AREA(ACRES) ~ 6.20 SUBAREA RUNOFF(CFS) 16.64 SUMMED AREA(ACRES) ~ 12.70 TOTAL RUNOFF (CFS) 35.59 END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .53 HALFSTREET FLOODWIDTH(FEET) 18.50 FLOW VELOCITY (FEET/SEC.) = 4.93 DEPTH*VELOCITY ~ 2.60 **************************************************************************** FLOW PROCESS FROM NODE 221.10 TO NODE 220.00 IS CODE ~ 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ============================================================================ UPSTREAM ELEVATION = STREET LENGTH (FEET) - STREET HALFWIDTH(FEET) 1049.00 600.00 = 28.00 DOWNSTREAM ELEVATION ~ CURB HEIGTH(INCHES) = 8. 1031.00 DISTANCE FROM CROWN TO CROSSFALL GRADE BREAK INTERIOR STREET CROSSFALL(DECIMAL) .020 OUTSIDE STREET CROSSFALL (DECIMAL) .020 16.00 '\'.0 I I I I I I I I I I I I I I I I I J I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 5 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF ~ 2 **TRAVELTIME COMPUTED USING MEAN FLOW (CFS) 36.21 STREETFLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .51 HALFSTREET FLOODWIDTH(FEET) = 17.75 AVERAGE FLOW VELOCITY(FEET/SEC.) = 5.42 PRODUCT OF DEPTH&VELOCITY = 2.78 STREETFLOW TRAVELTIME (MIN) ~ 1.84 TC(MIN) 14.48 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) = 2.840 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8757 SUBAREA AREA(ACRES) ~ .50 SUBAREA RUNOFF(CFS) 1.24 SUMMED AREA(ACRES) = 13.20 TOTAL RUNOFF(CFS) 36.83 c:es END OF SUBAREA STREET FLOW HYDRAULICS: DEPTH (FEET) = .51 HALFSTREET FLOODWIDTH(FEET) 17.75 FLOW VELOCITY (FEET/SEC.) = 5.51 DEPTH*VELOCITY ~ 2.83 G. 7 +- ?Z.o," - \. **************************************************************************** " FLOW PROCESS FROM NODE 220.00 TO NODE 1 220.00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION(MINUTES) ~ 14.48 RAINFALL INTENSITY (INCH./HOUR) ~ 2.84 TOTAL STREAM AREA (ACRES) = 13.20 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 36.83 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) 1 2 50.52 36.83 2.838 2.840 14.49 14.48 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 87.33 87.29 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) = 87.33 TIME (MINUTES) 14.494 TOTAL AREA(ACRES) - 31.72 L.I "IlL - C g,.33 ~.5 **************************************************************************** FLOW PROCESS FROM NODE 220.00 TO NODE 4 221.40 IS CODE = >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ DEPTH OF FLOW IN 48.0 INCH PIPE IS 33.3 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 9.4 UPSTREAM NODE ELEVATION ~ 1024.00 DOWNSTREAM NODE ELEVATION = 1023.85 FLOWLENGTH(FEET) ~ 25.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) ~ 48.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 87.33 TRAVEL TIME (MIN.) ~ .04 TC(MIN.) ~ 14.54 **************************************************************************** \~ I I I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 6 FLOW PROCESS FROM NODE 220.00 TO NODE 221.40 IS CODE = 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) = 14.54 RAINFALL INTENSITY (INCH./HOUR) = 2.83 TOTAL STREAM AREA (ACRES) = 31. 72 TOTAL STREAM RuNOFF(CFS) AT CONFLUENCE ~ 87.33 **************************************************************************** FLOW PROCESS FROM NODE 221.50 TO NODE 221.40 IS CODE = 2 ---------------------------------------------------------------------------- >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)J**.2 INITIAL SUBAREA FLOW-LENGTH ~ 700.00 UPSTREAM ELEVATION = 1046.00 DOWNSTREAM ELEVATION ~ 1032.00 ELEVATION DIFFERENCE ~ 14.00 TC = .303*[( 700.00**3)/( 14.00)J**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8800 SUBAREA RUNOFF(CFS) 20.95 TOTAL AREA(ACRES) ~ 6.50 PMtcrr..l 3 9.108 3.663 TOTAL RUNOFF (CFS) 20.95 **************************************************************************** FLOW PROCESS FROM NODE 221.50 TO NODE 221.40 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 9.11 RAINFALL INTENSITY (INCH./HOUR) = 3.66 TOTAL STREAM AREA (ACRES) ~ 6.50 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 20.95 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) -------------------------------------------------------------------------- 1 2 87.33 20.95 14.54 9.11 2.833 3.663 l\D:l',. 103.53- 67.3J;: IL.tP e-'"s RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 103.53 75.66 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 103.53 TIME (MINUTES) 14.538 TOTAL AREA (ACRES) ~ 38.22 \\'2.- I I I I II I I I I I I I I I I I I 1- I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 7 **************************************************************************** FLOW PROCESS FROM NODE 221.40 TO NODE 220.10 IS CODE = 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ============================================================================ PIPEFLOW VELOCITY(FEET/SEC.) ~ 8.2 UPSTREAM NODE ELEVATION ~ 1023.85 DOWNSTREAM NODE ELEVATION ~ 1021.60 FLOWLENGTH(FEET) = 450.00 MANNINGS N = .013 GIVEN PIPE DIAMETER (INCH) = 48.00 NUMBER OF PIPES PIPEFLOW THRU SUBAREA(CFS) 103.53 TRAVEL TIME (MIN.) = .91 TC(MIN.) ~ 15.45 1 **************************************************************************** FLOW PROCESS FROM NODE 221.40 TO NODE 220.10 IS CODE = 8 >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) ~ SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF SUBAREA AREA(ACRES) 5.50 TOTAL AREA(ACRES) 43.72 TC(MIN) ~ 15.45 P4tc 1l..l z..... 2.740 COEFFICIENT ~ .8751 SUBAREA RUNOFF(CFS) ~ TOTAL RUNOFF(CFS} ~ 116.72---- 13. \'1 c...~5 **************************************************************************** FLOW PROCESS FROM NODE 220.10 TO NODE 4 219.00 IS CODE ~ >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- PIPEFLOW VELOCITY(FEET/SEC.) = 9.3 UPSTREAM NODE ELEVATION = 1021.60 DOWNSTREAM NODE ELEVATION = 1018.40 FLOWLENGTH(FEET) = 640.00 MANNINGS N = .013 GIVEN PIPE DIAMETER(INCH) = 48.00 NUMBER OF PIPEFLOW THRU SUBAREA (CFS) 116.72 TRAVEL TIME (MIN.) = 1.15 TC(MIN.) = 16.60 PIPES 1 ././/\/'2 c **************************************************************************** FLOW PROCESS FROM NODE 219.00 TO NODE 219.00 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 16.60 RAINFALL INTENSITY (INCH./HOUR) ~ 2.63 TOTAL STREAM AREA (ACRES) ~ 43.72 TOTAL STREAM RUNOFF(CFS} AT CONFLUENCE ~ 116.72 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY (INCH/HOUR) 1 116.72 2.634 16.60 RAINFALL INTENSITY AND TIME FORMULA (RCFC&WCD) USED FOR VARIOUS CONFLUENCED RUNOFF <::116. 7T ~ ,t/r(fl C OF CONCENTRATION RATIO .1 STREAMS. VALUES ARE AS FOLLOWS: A-T ft1utL/L'/?# C/r.:;i.;{' \,\~ I I I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 8 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 116.72 TIME (MINUTES) 16.597 TOTAL AREA(ACRES) ~ 43.72 **************************************************************************** FLOW PROCESS FROM NODE 221. 20 TO NODE 228.00 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 1200.00 UPSTREAM ELEVATION ~ 1031.00 DOWNSTREAM ELEVATION ~ 1025.00 ELEVATION DIFFERENCE = 6.00 TC ~ .303*[( 1200.00**3)/( 6.00)]**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS liB" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8755 SUBAREA RUNOFF(CFS) 29.60 TOTAL AREA(ACRES) ~ 12.10 14.910 2.794 TOTAL RUNOFF(CFS) 29.60 **************************************************************************** FLOW PROCESS FROM NODE 221.20 TO NODE 1 228.00 IS CODE ~ >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 14.91 RAINFALL INTENSITY (INCH./HOUR) ~ 2.79 TOTAL STREAM AREA (ACRES) = 12.10 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE = 29.60 **************************************************************************** FLOW PROCESS FROM NODE 228.30 TO NODE 228.00 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH ~ 350.00 UPSTREAM ELEVATION = 1027.00 DOWNSTREAM ELEVATION = 1025.00 ELEVATION DIFFERENCE ~ 2.00 TC ~ .303*[( 350.00**3)/( 2.00)J**.2 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8802 SUBAREA RUNOFF (CFS) 1.31 TOTAL AREA(ACRES) = .40 8.868 3.718 TOTAL RUNOFF(CFS) 1.31 **************************************************************************** FLOW PROCESS FROM NODE 228.30 TO NODE 1 228.00 IS CODE = >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUIE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) ~ 8.87 RAINFALL INTENSITY (INCH./HOUR) = 3.72 ,-,I>t.. I I I I I I I I I I I I I I I I I I I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 9 TOTAL STREAM AREA (ACRES) = .40 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE 1. 31 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/HOUR) 1 2 29.60 1. 31' 14.91 8.87 2.794 3.718 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 2 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 30.58 18.91 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 30.58 TIME (MINUTES) 14.910 TOTAL AREA(ACRES) ~ 12.50 **************************************************************************** FLOW PROCESS FROM NODE 228.00 TO NODE 4 228.10 IS CODE = >>>>>COMPUTE PIPEFLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< DEPTH OF FLOW IN 30.0 INCH PIPE IS 20.0 INCHES PIPEFLOW VELOCITY(FEET/SEC.) ~ 8.8 UPSTREAM NODE ELEVATION ~ 1020.00 DOWNSTREAM NODE ELEVATION ~ 1019.00 FLOWLENGTH(FEET) = 100.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) = 30.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 30.58 TRAVEL TIME (MIN.) ~ .19 TC(MIN.) = 15.10 **************************************************************************** FLOW PROCESS FROM NODE 228.00 TO NODE 1 228.10 IS CODE = >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ---------------------------------------------------------------------------- -----------------------------------------------~---------------------------- CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 1 ARE: TIME OF CONCENTRATION (MINUTES) ~ 15.10 RAINFALL INTENSITY (INCH./HOUR) = 2.77 TOTAL STREAM AREA (ACRES) ~ 12.50 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE = 30.58 **************************************************************************** FLOW PROCESS FROM NODE 220.00 TO NODE 2 221.30 IS CODE ~ >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 500.00 UPSTREAM ELEVATION ~ 1031.00 DOWNSTREAM ELEVATION ~ 1028.00 ELEVATION DIFFERENCE = 3.00 TC ~ .303*[( 500.00**3)/( 3.00)]**.2 10.128 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) 3.456 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8791 SUBAREA RUNOFF (CFS) 1.52 TOTAL AREA(ACRES) ~ .50 TOTAL RUNOFF(CFS) 1. 52 ~ I I I I I I I I I I I I I I 1 1 1 I. I PARCEL MAP 28657 LINE-C STORM DRIAN 100 YEAR STORM 7/30/98 Pa~e 10 **************************************************************************** FLOW PROCESS FROM NODE 221.30 TO NODE 228.10 IS CODE ~ 6 ---------------------------------------------------------------------------- >>>>>COMPUTE STREET FLOW TRAVELTIME THRU SUBAREA<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- UPSTREAM ELEVATION ~ STREET LENGTH (FEET) = STREET HALFWIDTH(FEET) 1028.00 600.00 ~ 28.00 DOWNSTREAM ELEVATION = CURB HEIGTH(INCHES) ~ 8. 1025.00 DISTANCE FROM CROWN TO CROSS FALL GRADEBREAK INTERIOR STREET CROSSFALL{DECIMAL) .020 OUTSIDE STREET CROSS FALL (DECIMAL) .020 14.00 SPECIFIED NUMBER OF HALFSTREETS CARRYING RUNOFF 2 **TRAVELTIME COMPUTED USING MEAN FLOW(CFS) 10.42 STREET FLOW MODEL RESULTS: STREET FLOWDEPTH(FEET) ~ .46 HALFSTREET FLOODWIDTH(FEET) ~ 15.31 AVERAGE FLOW VELOCITY(FEET/SEC.) ~ 2.05 PRODUCT OF DEPTH&VELOCITY = .95 STREET FLOW TRAVELTIME (MIN) ~ 4.87 TC(MIN) 14.99 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) ~ 2.785 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT ~ .8754 SUBAREA AREA(ACRES) = 7.20 SUBAREA RUNOFF(CFS) 17.56 SUMMED AREA(ACRES) = 7.70 TOTAL RUNOFF(CFS) 19.08 END OF SUBAREA STREETFLOW HYDRAULICS: DEPTH (FEET) ~ .55 HALFSTREET FLOODWIDTH(FEET) 19.69 FLOW VELOCITY(FEET/SEC.) ~ 2.35 DEPTH*VELOCITY ~ 1.29 **************************************************************************** FLOW PROCESS FROM NODE 221.30 TO NODE 228.10 IS CODE ~ 1 >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 2 ARE: TIME OF CONCENTRATION (MINUTES) = 14.99 RAINFALL INTENSITY (INCH./HOUR) ~ 2.79 TOTAL STREAM AREA (ACRES) ~ 7.70 TOTAL STREAM RUNOFF(CFS) AT CONFLUENCE ~ 19.08 **************************************************************************** FLOW PROCESS FROM NODE 228.20 TO NODE 228.10 IS CODE = 2 >>>>>RATIONAL METHOD INITIAL SUBAREA ANALYSIS<<<<< ============================================================================ ASSUMED INITIAL SUBAREA UNIFORM DEVELOPMENT IS COMMERCIAL TC ~ K*[(LENGTH**3)/(ELEVATION CHANGE)]**.2 INITIAL SUBAREA FLOW-LENGTH = 450.00 UPSTREAM ELEVATION = 1027.00 DOWNSTREAM ELEVATION = 1025.00 ELEVATION DIFFERENCE = 2.00 TC ~ .303*[( 450.00**3)/( 2.00)]**.2 10.311 100.00 YEAR RAINFALL INTENSITY (INCH/HOUR) 3.422 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8789 SUBAREA RUNOFF (CFS) 1. 71 TOTAL AREA(ACRES) ~ .57 TOTAL RUNOFF (CFS) 1.71 \\Co I I I I I I I I I I I I I I I I I I I ........: ~....-- l!ARCEL MAP 28657 LINE-C STORM DRlAN 100 YEAR STORM 7/30/98 Pa~e 11 **************************************************************************** FLOW PROCESS FROM NODE 228.20 TO NODE 228.10 IS CODE ~ 1 ---------------------------------------------------------------------------- >>>>>DESIGNATE INDEPENDENT STREAM FOR CONFLUENCE<<<<< >>>>>AND COMPUTE VARIOUS CONFLUENCED STREAM VALUES<<<<< ============================================================================ CONFLUENCE VALUES USED FOR INDEPENDENT STREAM 3 ARE: TIME OF CONCENTRATION (MINUTES) = 10.31 RAINFALL INTENSITY (INCH./HOUR) ~ 3.42 TOTAL STREAM AREA .(ACRES) ~ .57 TOTAL STREAM RUNOFF (CFS) AT CONFLUENCE ~ 1.71 CONFLUENCE INFORMATION: STREAM RUNOFF TIME NUMBER (CFS) (MIN.) INTENSITY ( INCH/ HOUR) ---------------------------------------------------------------------------- 1 2 3 30.58 19.08 1.71 15.10 14.99 10.31 2.775 2.785 3.422 RAINFALL INTENSITY AND TIME OF CONCENTRATION RATIO FORMULA (RCFC&WCD) USED FOR 3 STREAMS. VARIOUS CONFLUENCED RUNOFF VALUES ARE AS FOLLOWS: 50.97 50.84 35.72 COMPUTED CONFLUENCE ESTIMATES ARE AS FOLLOWS: RUNOFF (CFS) ~ 50.97 TIME (MINUTES) 15.099 TOTAL AREA(ACRES) ~ 20.77 **************************************************************************** FLOW PROCESS FROM NODE 228.10 TO NODE 218.00 IS CODE ~ 4 ---------------------------------------------------------------------------- >>>>>COMPUTE PIPE FLOW TRAVELTIME THRU SUBAREA<<<<< >>>>>USING USER-SPECIFIED PIPESIZE<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- DEPTH OF FLOW IN 48.0 INCH PIPE IS 18.2 INCHES PIPEFLOW VELOCITY(FEET/SEC.) = 11.7 UPSTREAM NODE ELEVATION ~ 1019.00 DOWNSTREAM NODE ELEVATION = 1017.50 FLOWLENGTH(FEET) = 100.00 MANNINGS N ~ .013 GIVEN PIPE DIAMETER (INCH) ~ 48.00 NUMBER OF PIPES 1 PIPEFLOW THRU SUBAREA (CFS) 50.97 TRAVEL TIME(MIN.) ~ .14 TC(MIN.) ~ 15.24 **************************************************************************** FLOW PROCESS FROM NODE 218.00 TO NODE 218.00 IS CODE ~ 8 ---------------------------------------------------------------------------- >>>>>ADDITION OF SUBAREA TO MAINLINE PEAK FLOW<<<<< ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 100.00 YEAR RAINFALL INTENSITY(INCH/HOUR) ~ 2.760 SOIL CLASSIFICATION IS "B" COMMERCIAL DEVELOPMENT RUNOFF COEFFICIENT = .8752 SUBAREA AREA(ACRES) 3.70 SUBAREA RUNOFF (CFS) 8.94 TOTAL AREA(ACRES) ~ 24.47 TOTAL RUNOFF(CFS) ~ 59.91 TC (MIN) = 15.24 AI Ey.I.s\ 1S i' c'!. I:EF":C""" ~~~===~~====~~~~~~~~~====~~~~====~~~~===~~~~~~~====~~~~==~~~~~~~=~~~~==~~~== A"~ END OF RATIONAL METHOD ANALYSIS \\"'\