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Civil Software Design -- SEDCAD+ Version 0.0 <br />Copyright (C) 1987 -1990. Pamela J. Schwab. All rights reserved. <br />Company Name: Peabody Coal Company <br />Filename: 0-: \SEDCAD3 \2W \TAHRD11 User: R.J.GEHRKE <br />Date: 04 -09 -1990 Time: 08:12:32 <br />SENECA II -W TAHRD -11 (AS- BUILT) <br />Storm: 1.60 inches, 10 year -24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />----------------------------------------- <br />----------------------------------------- <br />NON -POND STRUCTURE INPUT /OUTPUT TABLE <br />----------------------------------------- <br />J1, B1, S1 <br />TAHRD -11 (AS- BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 7 acres <br />Total Contributing Drainage Area: 7 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Trapezoidal Earthen Channel <br />i 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) ( ;) <br />5.26 10.0 3.0:1 5.0:1 1.7 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />0.22 2.22 11.7 0.201 0.87 <br />Runoff Peak <br />Volume Discharge <br />(ac -ft) (cfs) <br />----------------------- <br />IN /OUT 0.41 5.26 <br />