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M(vii) - 9 <br />• WA^-.TE ROCK DISPOSAL AREA =DITCH DESIGNS <br />Three ditches must be sued tr. ensurr that they Will safely pass <br />tree flow ..f a lUyr - '~4Yir storm. <br />F'eak Flaw Calculations: <br />Ditch Section E-E' - Intrrcept~~r channel at the toe c.f the area. <br />Ilse the pea4:: f1UW for the sediment pond. <br />Ditch 3cction C-C' East <br />Area to be diverted around Waste Fork: Disposal Area is 1~.0 acres. <br />Fr~~rt~: Figure iri "F'ea4:: Flr.~ws In iolorad~~ <br />f~~r Juniper - i~rass with =oil i~r~~Up "C" ~: 4~~% Cove-r <br />CN = 7~ <br />F~ r F,14 = 1.~~~ "1t~ - 0.17'• <br />Fr~~rt~ TR-5~, F'a~7e ~-7; With Tc = i? any] Tt = p find q = ~~'?1 <br />F' <br />~~10 = qp :<: A ~: Ilia <br />• _ '=''91 „ ( 1~/L40 ) 0.17 <br />~~ip <br />~~Sp - ='. IS cfs <br />Ditch :=:ectii~n C-C' West <br />Area to be diverted arnUrid Waste Focl; Disp~~sal Area is /-•.p acre-c. <br />From: Figure ~ in "Peak Flews In ~~olnrado" <br />fC~r Juniper - Grass with 3oi1 Grnup "C" °< 4~~% Cover <br />CN = 75 <br />F•, r. F1~~ = 1.°~" n1i~ = 0.17" <br />Frort~ TR-~~, F'a~7e 5-7; With Tc = p ar~d Tt = 0 find q = 9;~1 <br />F' <br />q1D = qp ~: A i< Gip <br />q1~~ _.'?'?1 >; ( b/640 ) ;; 0.17 <br />~~10 = 1.°~~: cfs <br />• <br /> <br />