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<br />Table 4.6-11 Diversion Ditches for Moffat Area Sediment Basin <br />All Segments 2.Sh:ly Side Slopes n 0.03 <br />So + h Di _h North Ditch <br />c am n t ceament 2 ~Q7mPR t ~ PnT <br />From Station 0 + 00 9 + 23 0 + 00 42 + 00 <br />To Station 9 + 23 27 + 42 42 + 00 93 + 67 <br />Peak Discharge (cfs) 46.?': 75.95 ?7.10 29.70 <br />Bottom Width (ft) 11.46 20.00 11.46 11.46 <br />~' <br />Flow Depth (ft) 0.95 0.95 0.75 0.85 <br />Slope (8) 0.75 0.75 0.75 0.50 <br />Velocity <br />@ Flow Depth (fps) 3.7 3.8 3.2 2.8 <br />Capacity <br />@, Flow Dept <br />h <br />f <br />s <br />) <br />tc 48.4 81.8 32.1 32.6 <br />a <br />~a~ <br />.~ <br />~ <br />. <br />- _ _ '_-_ ~G II.i 23Ct E.. .... ~+..,. (~- -~: ~rJ-_ _ -~. 95 - - L.~S - -1 . SS <br />V = 1.49 R2/3S1/2 <br />n <br />R = bd + zd2 <br />b + 2d (2z + 1)1/2 <br />A= bd+ zd2 <br />Q = VA . <br />V Velocity <br />n = Manning's Number <br />R Hydraulic Radius <br />S = Channel Slope (ft/ft) <br />z Side Slope <br />d = Flow Depth <br />A = Area <br />Q = Discharge <br />4.6-37 <br />November 1,1989 <br />