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Civil Software Design -- SEDCAD+ Version 31.0 <br />Copyright (C) 1987 -1990. Pamela J. Schwab. All rights reserved. <br />Company Name: Peabody Coal Company <br />Filename: C: \SEDCAD3 \2W \TAHRDI9 User: R.J.GEHRKE <br />Date: 04 -09 -1990 Time: 13:35:41 <br />SENECA II -W TAHRD -19 (AS- BUILT) <br />Storm: 1.50 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 />----------------------------------------- <br />J1, B1, S1 <br />TAHRD-19 (AS- BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 165 acres <br />Total Contributing Drainage Area: 165 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Triangular 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) ( °�) <br />------------------------------------------------- <br />60.78 2.0:1 3.0 :1 0.5 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />2.50 3.88 12.5 1.162 0.61 <br />Runoff Peak <br />Volume Discharge <br />(ac -ft) (cfs) <br />----------------------- <br />----------------------- <br />IN /OUT 6.01 60.78 <br />