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.~ <br />REACH A - N3FE <br />Drainage Area from J4, B1, S1, SWS(sj1: <br />Total Contributing Drainage Area: <br />• <br />24.0 acres <br />436.9 acres <br />MATERIAL: GRADED LOAM TO COBBLES NONCOLLOIDAL <br />Trapezoidal Earthen Channel <br />Limiting Variable: Velocity = 5.000 fps <br />Sediment-laden Water <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) (~) <br />------------------------------------------------- <br />------------------------------------------------- <br />285.04 3.0 2.5:1 2.5:1 0.2 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />5.03 3.64 28.1 2.603 0.38 <br />w/ Freeboard: 5.03 28.1 <br />Runoff Peak <br />Volume Discharge <br />(ac-f t) (cfs) <br />IN/OUT 58.52 285.04 <br />******~~~****~~***~*******~*~***,~*~~*******,r**,r***~**~**~******~**~*****~*~**** <br />J4, B1, S2 <br />REACH A - N3FW <br />Drainage Area from J4, B1, 52, SWS(s)1: 45.0 acres <br />Total Contributing Drainage Area: 481.9 acres <br />Entrance <br />Loss Maximum Pipe Pipe Manning's <br />Coefficient Headwater Length Slope n Tailwater <br /> (ft) <br />- <br />- (ft) <br />-- <br />----- ($) (ft) <br />--- -- -- <br />------------ <br />0.50 ----- <br />-- <br />-- <br />13.0 - <br />80.0 3.0 0.026 0.0 <br />Minimum Pipe Diameter Required: 72.0 inches <br />(See Culvert Utility Program for full performance curves) <br />Runoff Peak <br />Volume Discharge <br />(ac-f t) (cfs) <br />IN/OUT 64.65 358.95 <br />***~~****~~****~****,e***,t***~~*#******~*********~***~**~*~~**~***~~*~****~t~~+* <br />J4, B1, 53 <br />REACH A - CULV OUT <br />Drainage Area from J4, B1, S3, SWS(s)1: 0.0 acres <br />Total Contributing Drainage Area: 481.9 acres <br />MATERIAL: Rock Riprap <br />