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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 \TAHRDI3 User: R.J.GEHRKE <br />Date: 04 -09 -1990 Time: 08 :12 :43 <br />SENECA II -W TAHRD -13 (AS- BUILT) <br />Storm: 1.00 inches, 10 year -24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON -POND STRUCTURE INPUT /OUTPUT TABLE <br />J 1 , B1, S1 <br />TAHRD-13 (AS- BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 4 acres <br />Total Contributing Drainage Area: 4 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) (�) <br />--------------- -- <br />2.22 10.0 3.0:1 5.0:1 1.4 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />0.14 1.52 11.1 0.131- -__ - -0 74 <br />Runoff Peak <br />Volume Discharge <br />(ac -ft) (cfs) <br />----------------------- <br />IN /OUT 0.17 2.22 <br />