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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />Company Name: PEABODY WESTERN COAL COMPANY <br />Filename: C:~SEDCAD3\YOAST~DIV2AB User: NGA <br />Date: 12-30-1997 Time: 11:22:05 <br />DIVERSION NO. 2 (YB-1 OUTLET/POND 10) AS-BUILT lOYR-24HR PRECIP EVENT <br />Storm: 1.70 inches, 10 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />J1, 81, 31 <br />DIVERSION ND. 2 <br />Drainage Area from J1, 81, S1, SWS(s)1: 9.8 acres <br />Total Contributing Drainage Area: 9.8 acres <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Triangular Earthen Channel <br />Limiting Variable: Velocity = 5.500 fps <br />Sediment-laden Water <br />L_ <br />w/ Freeboard: <br />Design Bottom Meaning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) ($) <br />------------------------------------------------- <br />------------------------------------------------- <br />6.25 4.4:1 3.6:1 0.2 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />1.05 1.62 8.4 0.510 0.34 <br />1.35 10.8 <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />IN/OUT 0.68 6.25 <br />• <br />Revised 12/30/97 <br />