2015-04-03_PERMIT FILE - C1981041 (2)

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Runoff Peak Peak Sediment Volume Discharge Sediment Concentration (ac-ft) (cfs) (tons) (mg/1) I 0.08 1.09 7 5 130633 Peak Settleable Concentration 24VW 24AA (ml/1) (ml/1) (ml/1) ------------------------------- 82.86 41.52 10.25 k******************#**********} J2, B2, S1 West Collection Dtch Drainage Area from J2, B2, Sl, SWS(s)1: 2.1 acres Total Contributing Drainage Area: 2.1 acres MATERIAL: ORDINARY FIRM LOAM Trapezoidal Earthen Channel Limiting Variable: Velocity = 3.500 fps Sediment-laden Water Design Bottom Manning's Discharge Width ZLeft ZRight Slope n (cfs) (ft) (°s) ------------------------------------------------- ------------------------------------------------- 1.00 2.0 1.0:1 1.0:1 2.0 0.020 Top Hydraulic Froude Depth Velocity Width Radius Number (ft) (fps) (ft) 0 16 2.86 -L 2 3 0 141 1 30 Freeboard: 0.46 2.9 Runoff Peak Peak Sediment Peak Settleable Volume Discharge Sediment Concentration Concentration 24VW 24AA (ac-ft) (cfs) (tons) (mg/1) (ml/1) (ml/1) (ml/1) IN/OUT 0.08 1.00 2.5 48420 30.71 15.23 3.71 J2, B2, S2 West Collection Dtch Drainage Area from J2, B2, S2, SWS(s)1: 0.0 acres Total Contributing Drainage Area: 2.1 acres Entrance Loss Maximum Pipe Pipe Manning's Coefficient Headwater Length Slope n Tailwater ------ (ft) ----------- (ft) (°s) -------------- (ft) ------------- ----- ------- ------------- 0.70 ----------- 2.5 -------------- 40.0 1.0 - --- ---------------------- 0.015 0.0 Minimum Pipe Diame ter Required: 6.0 inches (See Culvert Utility Pro gram for full performance curves) . Runoff Peak Peak Sediment Peak Settleable Volume Dischar ge Sediment Concentration Concentration 24VW 24AA (ac-ft) (cfs) (tons) (mg/1) (ml/1) (ml/1) (ml/1) ______ IN/OUT _________________ 0.08 1.00 ___________ 2.5 ______________ 48420 _______________________________ 30.71 15.23 3.71 fSN - 28 (New 3/'1/96)