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Trapezoidal Riprap Channel <br />Steep Slope Design - Simons/OSM Method <br />Design Bottom Manning's • <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) (~) <br />53.27 6.0 3.0:1 3.0:1 16.3 <br />Top Hydraulic <br />Depth Velocity Width Radius <br />(ft) (fps) (ft) <br />0.14 57.31** 6.9 0.134 <br />w/ Freeboard: 0.44 8.7 <br />** Non-uniform flow - Velocity shown is V=Q/A and m <br />----DMax---- <br />(ft) (in) <br />2.50 30.00 <br />----D50---- <br />(ft) (in) <br />2.00 24.00 <br />0.043 <br />Froude <br />Number <br />27.45 ~ <br />not be applicable <br />----D10---- <br />(ft) (in) ~I <br />0.67 18.00 ~ <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />IN/OUT 6.24 53.27 <br />******************************************************** <br />J1, B1, 54 <br />UNDIS & SLP:D14 <br />Drainage Area from J1, B1, S4, SWS(s)1-3: <br />Total Contributing Drainage Area: <br />MATERIAL: Rock Riprap <br />Trapezoidal Riprap Channel <br />Steep Slope Design - Simons/OSM Meth <br />Design Bottom <br />Discharge Width ZLeft ZRight Slope <br />(cfs) (ft) ($) <br />53.77 10.0 3.0:1 3.0:1 26.0 <br />Top Hydraulic <br />Depth Velocity Width Radius <br />(ft) (fps) (ft) <br />0.27 18.68** 11.6 0.246 <br />w/ Freeboard: 0.57 13.4 <br />** Non-uniform flow - Velocity shown is V=Q/A and m <br />----DMax---- ----D50---- ----D <br />(ft) (in) (ft) (in) (ft) <br />I s <br />*********~**********a <br />0.4 acres <br />0.8 acres <br />d ~ <br />anning's <br />n i <br />------- <br />0.040 <br />Froude ~ <br />Number <br />6.61 <br />not be applicable <br />I • <br />---- <br />(in) <br />____ <br />