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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\CR\C2 User: CWB <br />Date: 11-28-1997 Time: 11:41:59 <br />DITCH 2 OFF INDUSTRIAL AREA, CHIMNEY ROCK MINE <br />Storm: 2.10 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 />Jl, Bl, Sl <br />RDFILL/CUT&IND AREA <br />Drainage Area from Jl, B1, Sl, SWS(s)1-2: 4.8 acres <br />Total Contributing Drainage Area: 4.8 acres <br />MATERIAL: Rock Riprap <br />Trapezoidal Riprap Channel <br />Stee <br />Design <br />Discharge <br />(cfs) <br />---19.38 <br />Depth <br />(ft) <br />0.14 <br />w/ Freeboard: 0.44 <br />g Slope Design - Simons/OSM Method <br />Bottom Manning's <br />Width ZLeft ZRight Slope n <br />(ft) (%) <br />- 8 0 3.0:1 3 0 1 25.0 0.038 <br />Top Hydraulic Froude <br />Velocity Width Radius Number <br />(fps) (ft) <br />---16.49**----_8.8-------0.132--__--7.97 <br />10.6 <br />** Non-uniform flow - Velocity shown is V=4/A and may not be applicable <br />----DMax---- ----D50---- ----D10---- <br />(ft) (in) (ft) (in) (ft) (in) <br />------------------------------------------ <br />------------------------------------------ <br />1.25 15.00 1.00 12.00 0.33 4.00 <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />IN/OUT 0 41 19 38 <br />******************************************************************************* <br />• <br />