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-~ <br />Civil Software Design -- SEDCAD+ Version 3 <br />Copyright (C) 1987-1990. Pamela J. Schwab. All rights reserved. <br />• Company Name: Colowyo Coal Company <br />Filename: D:\SEDCAD3\WP5-101 User: JUAN GARCIA <br />Date: 03-30-1992 Time: 16:34:19 <br />WEST PIT FILL, RIPRAP CHANNEL DESIGN <br />Storm: 2.80 inches, 100 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: o.l hr <br />----------------------------------------- <br />----------------------------------------- <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />J3, B2, S1 <br />J3B2S1 <br />Drainage Area from J3, B2, S1, SWS(s)1: 161.8 acres <br />Total Contributing Drainage Area: 161.8 acres <br />MATERIAL: Rock Riprap <br />Trapezoidal Riprap Channel <br />Steep Slope Design <br />r~ <br />L J <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) ($) <br />------------------------------------------------- <br />------------------------------------------------- <br />13.89 12.0 2.0:1 2.0:1 15.0 0.033 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />0.11 4.00 12.5 0.111 2.11 <br />----DMax---- ----D50---- <br />(ft) (in) (ft) (in) <br />0.63 7.50 0.50 6.00 <br />----D10---- <br />(ft) (in) <br />0.17 2.00 <br />Runoff Peak <br />Volume Discharge <br />(ac-f t) (cfs) <br />IN/OUT 4.75 13.89 <br />*********************~************~******,r***********~~************************ <br />• <br />