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TABLE 22 CULVERT SIZING NOMOGRAPH <br />From. Handbook of Steel Drainage and Highway Construction Products" <br />CULVERT 23 at West Portal <br />Table 21 Peak Discharge 10 Yr.:24 Hr Storm Event =11 CFS <br /> s ono um counciew XQ {I <br /> . C <br />E (2) <br />FOR VARIOUS ENTR <br /> <br />1ss <br />1 s oao <br />0 TM <br />A <br />(3) <br />MN <br />1 .MP <br />BriRA?ICE <br />!.am 175CAN <br /> <br />02 aoo <br />120 • ; <br />000 shoo 4L <br />f <br />?{ , 171 Miwd?• trJN• as <br />Lo >ti•1?«M 4. <br />? <br />1 <br />ss 333 1.000 - 3• <br /> i00 T?uiwt•41«Olrria , <br /> <br />?? - 400 twlw.l-irw+ar.gLw? 2. <br />+~ O? <br /> <br />0 <br />30 <br />«r.C. <br /> 400 2. 2. <br /> 300 <br /> <br /> <br />to 200 -. t.S 1.S <br /> <br />O <br />34 - <br />Q <br /> = 100 0$ <br /> so <br />1.0 1.0 <br />;2 M 30 b 1 <br />0 <br />` <br />• 40- aA1111?RE . <br /> <br />36 Oian.tOl• s8ia• 411 <br /> <br />3 <br /> <br />0 <br />9 <br />$ L <br />- 00 T011 . <br />33 20 «-? <br />0 --0.9 0.8 <br /> Sob "W <br />30 - to 1.0 Ash <br />aTi 2T to go i i a 0.1 02 <br /> - s 0.7 <br /> s <br /> <br />tg ;1 s <br />s <br />6 0.6 <br /> 0.6 <br />It <br /> 2 <br />s ' <br />• - as <br />13 0.5 <br /> I.o <br /> HEADWATER DEPTH FOR <br />_ CORRUGATED STEEL WE CULVERTS <br />- <br />- ?x WITH INLET CONTROL <br />FHWA HEC S <br /> Requires 24" Culvert @ D = 0.95( 24") = 23" <br />TR-50 Exhibit 19.14-1 (Revised 2/26/09)