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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: GREYSTONE DEVELOPMENT CONSULTANTS <br />Filename: C:\SEDCAD3\NELK\D11D16A User: CWB <br />Date: 10-16-1997 Time: 10:31:11 <br />NEW ELK POST MINING TOPOGRAPHY, WEST PORTAL, C27 - D11 THRU D16 <br />Storm: 4.20 inches, 100 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />----------------------------------------- <br />----------------------------------------- <br />J1, B2, S1 <br />UNDIS,RECLAIM:DI6A <br />Drainage Area from J1, B2, S1, SWS(s)1-3: 74.4 acres <br />Total Contributing Drainage Area: 74.4 acres <br /> MATERIAL: Rock Riprap <br /> Trapezoidal Riprap Channel <br /> Steep Slope Design - Simons/OSM Method <br /> Design Bottom Manning's <br /> Discharge Width ZLeft ZRight Slope n <br /> (cfs) <br />---------- <br />---------- (ft) ($) <br />------------------------------ <br />------------------------------ <br />--------- <br />--------- <br /> 98.66 6.0 3.0:1 3.0:1 18.0 0.043 <br />• <br /> Top Hydraulic Froude <br /> Depth Velocity Width Radius Number <br /> (ft) <br />-------- <br />-------- (fps) (ft) <br />------------------------------ <br />------------------------------- <br />--------- <br />-------- <br /> 0.65 19.06** 9.9 0.512 4.65 <br />w/ Freeboard: 0.95 11.7 <br />** Non-uniform flow - Velocity shown is V=Q/A and may not be applicable <br />----DMax---- <br />(ft) (in) <br />----D50---- <br />(ft) (in) <br />----D10---- <br />(ft) (in) <br />2.19 26.25 <br />1.75 21.00 <br />0.58 7.00 <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />----------------------------- <br />----------------------------- <br />IN/OUT 10.98 98.66 <br />******************************************************************************* <br />J2, B1, S1 <br />D15: TRACK & RECLAIM <br />. Drainage Area from J2, B1, S1, SWS(s)1-3: 4.1 acres <br />Total Contributing Drainage Area: 81.7 acres <br />MATERIAL: Rock Riprap <br />Trapezoidal Riprap Channel <br />