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• Civil Software Design -- SEDCAD+ Version 3.0 <br />Copyright (C) 1987-1990. Pamela J. Schwab. All rights reserved. <br />Filename <br />Storm: 1.60 <br />Company Name: Peabody Coal Company <br />C:\SEDCAD3\2W\TAHRD2 User: R <br />Date: 04-06-1990 Time: 1.5:16:06 <br />SENECA II-W TAHRD-2 (AS-BUILT) <br />inches, 10 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 <br />J.GEHRKE <br />hr <br />----------------------------------------- <br />----------------------------------------- <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />----------------------------------------- <br />----------------------------------------- <br />J1, B1, S1 <br />TAHRD-2 (AS-BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 32 acres <br />Total Contributing Drainage Area: 32 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 />------------------------------------------------- <br />9.88 10.0 5.0:1 5.0:1 2.0 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />0.30 2.88 13.0 0.263 0.99 <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />----------------------- <br />----------------------- <br />IN/OUT 0.90 9.88 <br /> <br />