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• Civll sortware Design -- SSDCAD+ version 3.1 <br />Copyright ((;) 1887-1992. Pamela J. Schwab. All rights reserved. <br />Company Name: P & M COAL MINING COMPANY <br />Filename: C:\SIDCAD3\EDNA-MD3 User: BDG <br />Date: 07-29-1998 Time: 14:28:27 <br />MOPFAT DOWNDAAIN N3 <br />Storm: 1.80 inches. 10 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />......................................... <br />NON-POND STRUCTURE INPUT/OUTPUT TAB[.E <br />......................................... <br />JL, B1. S1 <br />DOWNDRAIN N3 <br />Drainage Area Prom J1, B1, S1, SWS(e)1: 48.6 acres <br />Total Contributing Drainage Area: 40.6 acres <br />MATERIAL: Rock Rlprep <br />Triangular Riyrap Channel <br />S taep Slope Design - PADBR Method <br />Design Bottom Manning's <br />Discharge Width 2Lert 'LRlght S10pe n <br />(cts) (rt) (x) <br />................................................. <br />24.82 3.0:1 3.0:1 22.0 0,060 <br />Top Hydraulic Frauds <br />Depth Velocity Width Radius Number <br />(tt) (fpai (ft) <br />..0.99.....e.46.......S.e.......0•d70......2~12 <br />• w/ Freeboard: 1.29 7.7 <br />•-•-DMax---- ----D60---_ ----D10-_-- <br />(rt) (in) (ft) (Ln) (tt) (in) <br />.......................................... <br />0.63 7.60 0.60 6.00 0.17 2.00 <br />Ruaoft Pcnk <br />Volume Discharge <br />(ac-[t) (cfs) <br />............................. <br />IN/OUT 1.67 24.92 <br />a•alal aaa•ap aa.a•a1•Hay•p.+aaa.aa.aa.......aa..aaaaaaa.aN N u asaaaa+.aaaN• <br />• <br />TR-38 July 29, 1998 <br />