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(:APt FLAK KIVtK W4JIN ~ 511 t UA i A e u`vw v~in~w 5iu'i CAFE YEAR 8C1 V ER rSAS,d1°4
RMATION AND COMPUTATIONS , ADDITIONAL INFO ; Drainage Area 5!?2.AC Source tISO&.QI.IAD._._..................._.........................._ ;
CULVERT S , CULVERT SURVEY & HYDRAULIC DESIGN REPORT
J~YARQLQOY ; River Basin CAP.E.F.EAR............................... Character U.BBAAI..........--•--•----..........-----................. , N. C. DEPARTMENT OF TRANSPORTATION
; DIVISION OF HIGHWAYS
..DA=~7.84.3Q.A11....*.il~tQERYIQ!]S.AREA-28% ~ Stream Classfflcation tSuch as Trout, Htgh Quality Water, etc.) WS.OI,.NS~!.___.....__._......___.._._.......... HYDRAULICS UNIT
...FEMA ~ Data on Ex(sting Structure2Q7.8.". CMP..............._............._...._. ' ..BLl1E..RlDGCk.-P.tERMQl~1L , RALEIGH. N. C.
SAY ;
...5~..=.33.~DA.o.~s9 ~ oeeb -?J4.S:FS ......................27.5..CES......._......--......10..YR=.7b~.CFS................ Debris Potentials Low..._...Moderate....X... High z ; ,
; I.D. No. IQC.-O]~37..#.1... Protect N~ - a~si osn =4 Data on Structures U and Down Stream ' ...Q..-.Z~.9QA......1/1..:.......~O.CES .......................4a0..CF.S......................5lZ.Y.B=10&Q.JrFS............... P .UP.STREAM.-.1~D.CDMP.ARABLESTRUCTURE.........---............... ~ . ProJeot No- Prof. Station 26.+:39 -=1.=____--.-.-
. , e o.b~ oss - - - E ,County WAKE...................... Stri Stream MORRIS -BRANCH----------------------------------------- Stru. No. WA--------
...Q..-1220A..:..,lA.......=57.9..CF.S ........................580..CF.S......................lOI~.YB.-a23~0.CF~.:_:...•.-...- i DAMiNSTREAM....N.O..CAMQARABLE.STRUC?URE....IQRDAN..LAK ' , , io • SR 1625
' On Highway GREEJ~..I.EVFL.RR.......... - 0611 OA36= Period of Records ' ...R..-2Z8I2A..'...IA.........114Q.CFS~ .......................840..CFS................., 5lZO.YR..18.4R.CES..-.•-•--:.... ; Gage Station No.1~YA......................,...... rYA.......................................... ~ "VEL.RD........... Between SB_1.624--------------- and SIL1628................................
;Recommended Structure 2 9.'x8: R! ire 2Q9'x8_RCBC. qtr/SILL------------------------------------------------------------------------------
...Q..-.29bRA..°:~.IA.o_3ve=9.57..IFS...... ..................9~b0..CES......................10!].YR.FIItU.RE=t5Q0..CES.... Max. DtschargeAl/A....-----------..........c.fs Date PyA........................... Frequency J~YA.................. ' so o
...Q..=~7.4RA.o~93U1 osse=JSl67..CFS.......... .............107.O..CFS---..................USEF.EMA...'..................... ' Historical Flood Informations ~ )f Roadway 130 -ET..SHOULDER.-TO--.SROU1AlER Skew J143-°-0'Q'_
±200YR Period of ti Recommended Width of Roadway J.3t ~ Date Knowled e . 9/.9b........ Elev.273----- Est. Freq.........Source RQB):RT.M/~RSH....-• g ~i.YBS. ; ~ o
* Period of d Recommended Location is 1Up At D n is (Up At Down) Stream from Existing Crossing-
.P.ERCENLIMPERYIS?!lS.QBTAIKER..U511!lCx_ClTY..QE.CARP.ZQNU1Ca ~ . Date............ Elev.-•----•--• Est. Freq......... Source Knowledge........ ~
' ;Bench Mark 1s CAP-JA......1~..75.56Ji , ; Allowable HW Elev. MA1:Chi..QR.LOWJ:R..EXISJ7I~.G..]AO..YR=.27.5.2 . Normal Water Surface Elev. 2:62,4 52...... W.7556.81.841------ 1-2029096.6234---------------------------------------------------------
. ~ . . ' FIELD AND HEC-RAS ~ 0 Elev. 27.3.54------- Datum: MGMD-1229-------
~ Manning's n :Left 0.8. 0.1~....:.: Channel!]U5~..... Right O.B.l2,15..... Obtained From MOAkI............ ~ o
Z Tem orar Crossln 1S..t~(QT. REi~L1lRl P Y 9 . 'S _MOT.REMMED----------------------------------------------------------------------------------------
Flood Study /Status FEATIA.RETAIIEQ..STllRY Floodway Established? YES... , ,
~ Flood Study 100 yr. Discharge 1230...... c.f.s.; W.S. Elev.: With Floodway275.10... Without FloodwaY27.4.25.... ~ , . .
DESIGN DATA ~ .
0
Hydrolog(cal Method FEMA..RISC1iARGP ' z
. ; Hydraulic Design Method HEC-RAS.31.3 ~ ' t
Design Tailwater , Q 9.8........... ; Q 0 Q 11.2.......0 Q ]l.b........0 Q 13.7............. . 10 25 ~ 50 100 500 ~
. u Outlet Control . L.,
inlet Control . Remarks '
do+D ~ Sfze & Type Q Ke HW/D H.W. do 2 ho H LSo H.W. ~ ~
10 YR ~ ~ 7b5 .2 0.88 3.43 9.8 Lt 1. 9.0 O.C. ~r a,~, 1 '1 } t y
. 2@9x8 RCBC b.18 5.21 9 r .
50 YR 2@9x8 RCBC 1080 .2 1.02 7.15 4.83 5.91 11.2 1.9 1.9 11.2 O.C.
100 YR 2@9x8 RCBC 1230 .2 1.07 7.55 5.27 b.13 ll.b 2.4 1.9 12.1 O.C. , ~4~, ~ u ~ . . ,
500 YR 2@9x8 RCBC 1840 .2 1.30 4.07 b.89 b.94 13.7 3.2 1. 15.0 O.C. ~ ; ~ ~
100 YR ~y ~ r~ M, ~ ~ , _ , . ;FUTURE 2t?a 9'x8' RCBC 1590 .2 1.21 8.47 b.17 b.58 13.4 2.4 1. 13.9 O.C. ' ~ ~ '
c, a ,
c 1 S Y
Is a Floodway Revision Required?YJ:S,.CHANCES.ItV..FLQQDWAY..WIDTH r " ,
, ' , <<<r»~rrrrnyyr~~
Outlet Velocity,iV101~,S.J?T/.SEC.-•-----................ Natural Channel VelocttY,tV10 ).4.5.FU.S!<C................_..._. h ~ 04 t- ,
' Re wired Outlet Protection CLASS..'1'.RIPRAP..ES1:..f~.23A.:[QNS ' q j`%JCA 11"
2.oFESS/D%
T BE SHOWN ON PLANS . INFORMATION O DesPgned by: SUJyGATE.RESIGN..GRC Dote 'E.QES GN..GP,0.UP_ P_A..__.____...... s
. ; Design: Discharge.....JA8Q.....c.f.s. Frequency........SA.X@........ *Elev. .---.......27.27............ Assisted by: JOA,JLHK,.JBH............ (._JRH------------------------------------ - 9334
' <
. 100 r. ~ Base Flood: Discharge.----J23Q.....af.s. Frequency.............y........ Elev. ...........2Z3,Q........... Protect Engineer: IN..HENRY.!NELLS, , HENRY. WELLS, JR PE . y fill
.
~ Overtoppings Discharge....t.184Q....c.f.s. Frequency......:ESO,Q.XB...... Elev. ..........t.282.5J.......... Reviewed by:.........•---...............
*ELEVATIONS ARE FROM SECTION 824b.7 1 21 vy
LEVATIONS HAVE BEEN ADJUSTED TO 1929 DATUM. HEC-RAS MODEL IS IN '88 DATUM. , E