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~~ivil 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\TAHRD220 User: R <br />Date: 04-09-1990 Time: 10:05:42 <br />SENECA II-W TAHRD-22 (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, 81, S1 <br />TAHRD-22 (AS-BUILT) <br />Drainage Area from J1, B1, S1, SWS(s)1: 257 acres <br />Total Contributing Drainage Area: 257 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 />32.99 2.0 5.0:1 3.0:1 2.0 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />1.05 5.06 10.4 0.611 1.13 <br /> <br />• <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />----------------------- <br />----------------------- <br />IN/OUT 9.37 32.99 <br />• <br />