welod1v O\lde1nltkal de h welod1v ..otmal de h ._;,e·TW ..: 1.00 mjs 2.22 mjs Out let V if fu l flow occu red He,ex\t..<eloci':'f hed= O.S7 m I nlet V if pa rtial flow occured flo-.... c!epth: <5 ft welod1y 1.31 m/s _.•-. -...- -.---..--. fromn orm lde.;:oth u k 0.7;2 ,.,..
tOO ..ooo I ICHART 14 A I I 50 ( 1) ( 2) (3 ) I. / 2500 1$00 ........, ,.eoo """"" Box e Q:2.12 m3t. ; 20 01&•'1,41 m31:1.'m 0. • 7 • I. / • y / • • ./ • f • g 0 ' .$ 1n1oc "" .c. 10 '·"' , • (2) 1.90 (>) 2.05 • •• 0.0 / ! :a 0.$ / / o.s •• 1500 "' ... ... 3 / de CANNOT EXCEED TOP OF APE 0 3 ................ 0.1 , ,I I I I () E -.& QA. O 2 Y1J!'7 :. ... - ---- 10 / / .,..- 3 5 • QIB 1.0 / <.o· <D :::J ;:::!.;:o o<D <D.Q U) 000 ....... / M 0 ·.. / .; 70........./ "' ... - ;;; ' 0.0 SCALE WINGvvALL 0 600 500 3. 3 2 ,6 2 (m) O•flow (m•f,) de .0.487((0/B)i)V) / v :::J 3 <D ;::!. U) 400 ..•.L <lc CAXNOT EXCEED TOP OF ptPE ' " I ?< I .. .,.,.... '.l.'...l.:l..-... A••• • . ,QQ HEADWATER DEPTH FOR BOX CULVERTS WI TH INLET CONTROL tO •• A.dpted fromB ;au of Public: ROOICI• e
Culvert Desgn Culvert Design Form - " i .. .. - •w.. 0 • ' ' 0 u 0e: - rl'" f-J d !l. Q 2 .. I """• : "' • I • .. 0 a I • - I! .. r -• .. cc• li - -t • M • -• -• '' - • w " •w •"' - • •• . • • ;; • • • " a c -w I• • :> • ;:; I I ..- •• § • t; • I a-. ,r 0 -. H •. c 11 i• • . iI· ,r J 2 • - • -=.. j •• 1 •• _
0 •. .. .. I :-· ; : .. : . '- 0 c.. w• ;; .- ,. • •s • • ! jt s !-• ti 's; :b·· I - hl - 5 • i ••• • - u •- • "' H w• • - •3 I' •- ' - ." • •! . • • • • •. • - . D 0 • u• • • • I ie il .. t . I "• •
dc=[ (Q/D)^2/ g]^1/3 (dc+D)/2 د -١ -٢ -٣ ho= TW= (dc+D)/2 -۴ (ke) د – ۵ د -۶ H= [1+Ke+(1963*n^2)/R^1/3]*(V^2/2g) V= Q/A R= A/P P=wetted parameter ع د د -٧ ELo= Eli- (So*L) د -٨ ELhi= HWi+ELi HWi= D[HW/D] HW/D= C[Q/AD^0.5]^-2 +Y+Z
14 l l given data ,>.>I j;>J j!- J ,:. ,_J J[10-year design folw = l l l - 3.23928 ems from abave caculation t) w' J ....s >"' J road sulder elevation .. Design Head Elevation, EL Channelinvert levation_!Eli= .. (_4) J Jl Number of barrels 34.595 m 33.528 m 30.48 m 1 survey from survey from survey_ from survey w J J Stream bed slope, So= 0.458 m/m from survey J JJ1fo Approx Culvert length, La= , , , J Faii=Hwi- HWd Outlet elev, Eol= ----+- S=So-(faii/L = Hwi=Eihd-Eii= Box Man-ning,s n= I 1 76.2 m Om -4.4196 m 0.458 3.048 m 0.013 I from survey r Trial #1 Box width,B= Trial #1 Box height,D= Area of box= R=A/P Inlet type= squre .. 1m 1m 1 sqm 0.25 P=(?*+(?*0 A=B*D
/Y I ... 11101.....1 IW . .... c·· ........, ......... 0 t + 1- .. .. , !1 1 Q/barrei=O/(N*B)= - 3.26928 cm/sm - N= nose of barrel B= wide of barrel !$ 2.a Hwi/0 3.048 from chart AS acurdance to 0/B(sqm/sca) r- + , !! 2.b Hwi 3.048 m I I I I 1- .. - 1-- $00 3 Fall 0 r- $0$ 4 Elhi=Hwi+Eii 33.528 m r- $0! S.a TW 0.51 m r- $0) S.b de 1 m r- - inlet control head water elevation - - chart 14A acurdance to 0/B(sqm/sca $0 l(detD)/2 I I I I I , $05 6.a greater TW or (dc+D)nHo=He - -- 1 m Reference:U.S. Department ofTrans portation Federal Highway Administration. $0, 6.b ko= 0.5 r- - haydrol1c 101 7 H= 28.87 m by this (H=[1+Ke+(ku1nAnfRA133)]'(VA2f2g) farmula , - 8 outlet control r10-$ elvation Elho=Eoi +H+He 25.45 m inletecontrol 101 elevation 33.528 .. ... + 1- .. - 1-- fullbox outlet I I I I 110 velocity 0/(B*D) 3.26928 m/s r- inlet control , 111 outlet velocity width*TW depth= 0.51 m/s "'- T T I I
• Note: Eud Sec-tioru. con:bm:ring to £U slope, made of erthe"" metal or CO!lCtm, «re the sec-riom comm::mly manufacrurers. From !iruii:ed hydr..wi: tests they «re equi.--;aJmt opaa:fon to a be-adwan in both !!::l=! md outlet c-outrot Some end sec-ions inc.OipOla.rin; a dosed pa m tbefr desip h.n:e a superior bydrat.ilic perfon .mce. SottrCe: f'J>S:5 20
- -·v- --- -·--·· 4.5.14 l\lalllling's n Values For only ptpe JS allowed except for dm '3V culv-erts. For culvertequal to or grealfr than inches in diameter. co ted metll p!pe IS allowed if it IS b!lU!IJioons \nth a concrete-poured mverl. Table 4-3 recolllll.lellded n,t!hle!;_ Tab !> 4-3 Manning's IIralues Wall& Joint Descmtion Concll':te Pipe 0.011..() 013 0.014-0.016 0.016..() 017 Concrete Box Good JOmls. smooth fmished P""'""'mt< rough, llllfinished w31ls Com1gated ::Vfetll Pipes and Boxes, ,'i.!mular Helical Corrugations. Full Circular Flow 2 1!2-lllCb com 6 1-lllCh co ;aoons 5 by l-inch comJgallOtl!i 3 by l-inch co ;allOns 6 2-inch strnc llfalplate 34 0.0' 4-0. 012 :1\Jte: For furtlllr infcinmtlon coocern11g l\l:lilllllllg
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