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• <br />WEST MINE DIVERSION - EAST LIt1B <br />Ditch Sizing <br />1. A = 10.65 cfs <br />2. Cross Section - shot June 11, 1981 <br />5' 6' <br />1.7 <br />Total area A = 5 *21.75 + (6 *21.75) = g.6 ft2 <br />• <br />3. If V = ~ = 16.0 and V = 1=5 (~)2~a(S)z <br />A A n P <br />V 0.05 (p)~3(0.108)' <br />then set A until V's are equal by trial and error. <br />They converge when A = 2.0 ftZ then <br />5' 6' <br />1.75' 0.95' freeboard. <br />0.8' <br />• <br />