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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />• <br />Company Name: Peabody Coal Company <br />Filename: C:\SEDCAD3\SEN2\MIDDTCH User: TJW <br />Date: 11-18-1992 Time: 14:14:31 <br />DITCH BETWEEN BONE YARDS (l0yr-24hr Storm) <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 />----------------------------------------- <br />J2, B1, S1 <br />DITCH BETWEEN YARDS <br />Drainage Area from J2, B1, S1, SWS(s)1: 2.8 acres <br />Total Contributing Drainage Area: 936.3 acres <br />MATERIAL: TALL FESCUE <br />Trapezoidal Vegetated Channel <br />Limiting Variable: Velocity = 7.000 fps <br />Design Bottom <br />Discharge Width ZLeft ZRight Slope <br />(cfs) (ft) (°s) <br />• <br />w/ <br />2.26 3.0 2.0:1 2.0:1 4.0 <br /> Top Manning's Hydraulic Froude <br />Retardance Depth Velocity Width N Radius Number <br />Class (ft) (fps) (ft) <br />- <br />----- <br />------------ <br />Stability B -------- <br />0.75 ----------- <br />0.66 -------- <br />6.0 ---------- <br />0.299 ------------ <br />0.534 - <br />-- <br />0.15 <br />Capacity B 0.75 0.66 6.0 0.299 0.534 0.15 <br />Freeboard + B 0.75 6.0 <br />Runoff Peak <br />Volume Discharge <br />(ac-f t) (cfs) <br />IN/OUT 1.10 2.26 <br />• <br />7-6-3-20 <br />