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- 64 - <br />,' <br />1 <br /> <br />1 - - .__ <br /> to <br /> +o,ow ~o <br /> • <br />' aopoo ~ <br /> s ~ <br /> eopoo <br /> a <br />a0 <br /> ~ M <br /> ~ 10 <br /> 10p00 O <br />L <br /> ~.~ ID <br />J O f0 <br />' _ <br />v •,ODO ___ _ <br />u <br />~ ~ <br />Er <br />_ <br />~p o <br /> _- <br />yhole <br />4 <br /> c ~~ ~ _~' c <br /> J = <br /> apoo : <br /> too <br /> t,ooo nr <br /> aoo <br /> <br />' <br />I,ooo goo <br /> goo soo <br /> soo Eaomple ~ <br /> <br />L e 7,250 feet ~ ~ <br /> H = 130 feet <br /> then Tc = 0.57 hours <br /> Figure H.8 Time of concentration <br />' , estimate (USBR, from SCS). <br />1 <br />~~ <br />i <br /> <br /> <br />~A <br /> 44 <br /> <br />