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Civil Software Design -- SEDCAD+ 'Version 3.0 <br />Copyright (C) 1987 -1990. Pamela J. Schwab. All rights reserved. <br />Company Name: Peabody Coal Company <br />Filename: C: \SEDCAD3 \2W \TAHRD8 User: R.J.GEHRKE <br />Date: 04 -09 -1990 Time: 10:41:58 <br />SENECA II -W TAHRD -8 (AS- BUILT) <br />Storm: 1.50 inches, 10 year -24 hour, SOS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />----------------------------------------- <br />----------------------------------------- <br />NON -POND STRUCTURE INPUT /OUTP!UT TABLE <br />----------------------------------------- <br />----------------------------------------- <br />J1, B1, S1 <br />TAHRD -8 (AS- BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 9 acres <br />Total Contributing Drainage Area: 9 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Trapezoidal Earthen Channel <br />Limiting Variable: Velocity = 5.500 fps <br />Sediment -laden Water <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) W <br />------------------------------------------------- <br />------------------------------------------------- <br />5.18 10.0 5.0:1 3.0:1 4.7 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />0.16 3.04 11.3 0.150 1.38 <br />Runoff Peak <br />Volume Discharge <br />(ac -ft) (cfs) <br />----------------------- <br />----------------------- <br />IN /OUT 0.39 5.18 <br />