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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\LOR\FILL9A User: CWB <br />Date: 07-28-1997 Time: 10:10:36 <br />LORENCITO SURFACE MINE FILL 9: D91-D94, 100 YR DITCHES, D95 10 YR DITC <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 />J1, B1, S1 <br />DITCH 91 <br />Drainage Area from J1, B1, S1, SWS(s)1-2: 4.8 acres <br />Total Contributing Drainage Area: 4.8 acres <br />MATERIAL: COBBLES AND SHINGLES <br />Triangular 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) <br />--------- <br />--------- (ft) <br />------------------ <br />------------------ ($) <br />-------------- <br />-------------- <br />-------- <br />-------- <br />14.77 2.5:1 2.5:1 3.0 0.035 <br />• Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) <br />------- <br />------- (fps) (ft) <br />------------------ <br />------------------ <br />-------------- <br />-------------- <br />-------- <br />-------- <br />1.11 4.75 5.6 0.518 1.12 <br />w/ Freeboard: 1.41 7.1 <br /> Runoff Peak <br /> Volume Discharge <br /> (ac-ft) (cfs) <br />IN/OUT 1.41 14.77 <br />r****,r***,r,t,r**,t,t,t,r,r*,t*****,-,t**,t***,r,r,r****,t*,t,-,-~**~*,r,t~,t+*~~**~**~+***~******+*r <br />J1, Bl, S2 <br />DITCH 92 <br />Drainage Area from J1, B1, S2, SWS(s)1-4: 5.8 acres <br />Total Contributing Drainage Area: 10.6 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) (ft) (~) <br />32.69 6.0 3.0:1 3.0.1 20.0 0.039 <br />