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Appendix B <br />Summa Coal Mine Waste Disposal Area Ditches and Culverts <br />Ditch Grade <br />Minimum Grade <br />Maximum Grade <br />RipRag <br />Peak <br />Min <br />Max <br />Depth <br />I Velocity <br />Depth <br />I Velocity <br />50 Inch <br />Flow <br />Feet <br />Ft/Sec <br />Feet <br />Ft/Sec <br />cfs <br />F1 <br />4.2% <br />4.2% <br />0.421 <br />4.3 <br />0.42 <br />4.3 <br />6.73 <br />F2 <br />1.3% <br />1.3%1 <br />0.47 <br />2.6 <br />0.47 <br />2.6 <br />5.17 <br />F3 <br />4.4% <br />4.4%1 <br />0.34 <br />3.8 <br />0. 341 <br />3.8 <br />3.83 <br />F4 <br />30.0%1 <br />30.0%1 <br />1.40 <br />14.01 <br />1.40 <br />14.0 <br />241 <br />38.17 <br />F5 <br />2.0%1 <br />2.0%1 <br />0.30-2.91 <br />0.391 <br />2.91 <br />1 3.99 <br />F6 <br />1.1% <br />. 1 0/6 <br />0.40 <br />2.11 <br />0.40 <br />2.11 <br />3.93 <br />F7 <br />2.0% <br />2.0%1 <br />Trapezoidal <br />Channel <br />15 <br />37.95 <br />F7a <br />33.0% <br />33.0%1 <br />1.20 <br />13.91 <br />1.201 13.91 <br />4 <br />37.95 <br />F8 <br />4.6% <br />4.6% <br />F 0.37 <br />4.21 <br />0.371 4.2 <br />5.22 <br />F9 <br />30.0% <br />30.0% <br />0.10 <br />6.2 <br />0.10 6.17 <br />12 <br />1.40 <br />F10 <br />2.2% <br />2.2% <br />0.54 <br />3.7 <br />0.54 3.7 <br />9.63 <br />F11 <br />3.4% <br />3.4% <br />0.34 <br />3.4 <br />0.34 3.4 <br />3.56 <br />F12 <br />3.6% <br />36% <br />0.39 <br />3.8 <br />0.39 3.8 <br />5.03 <br />F13 <br />2.0% <br />2.0% <br />1.54 <br />6.3 <br />1.54 6.3 <br />22.28 <br />F14 2% <br />2.0% <br />2.0%1 <br />Trapezoidal <br />Channel <br />9 <br />11.73 <br />F14 30% <br />26.0%1 <br />26.0% <br />Trapezoidal <br />Channel <br />18 <br />11.73 <br />F15 <br />1.8%1 <br />1.8%1 <br />0.48 <br />2.7 <br />0.48 <br />2.74 <br />0.96 <br />F16 <br />10.0%1 <br />10.0% <br />1.30 <br />8.0 <br />1.30 <br />7.98 <br />18 <br />21.41 <br />F17 <br />1 1.0%1 <br />1.0% <br />0.68 <br />2.6 <br />0.68 <br />2.6 <br />2.14 <br />F 18 <br />3.4%1 <br />3.4%1 <br />0.301 <br />3.1 <br />0.30 <br />3.1 <br />2.41 <br />IF 19 <br />2.9%1 <br />2.9%1 <br />0.501 <br />4.0 <br />0.50 <br />4.0 <br />8.88 <br />F20 <br />2.0%1 <br />2.0%1 <br />0.491 <br />3.31 <br />0.49 <br />3.3 <br />6.96 <br />F21 -1 <br />20.0% <br />30.0% <br />0.50 <br />7.5 <br />0.50 <br />7.5 <br />12 <br />11.09 <br />F21 -2 <br />30.0% <br />30.0% <br />0.90 <br />11.1 <br />0.90 <br />11.1 <br />18 <br />11.59 <br />F22 <br />1.0% <br />1.000 <br />0.56 <br />2.3 <br />0.561 <br />2.3 <br />1.08 <br />F23 <br />1.3% <br />1.3% <br />0.21 <br />1.7 <br />0.21 <br />1.7 <br />0.12 <br />East Div. <br />5.0% <br />1 32.0% <br />ITrapezoidal <br />Channel <br />0 -18" <br />21.75 <br />W. Div #2 <br />4.0% <br />4.0% <br />0.401 <br />2.61 <br />0.40 <br />2.6 <br />3.37 <br />W. Div #1 <br />3.5%1 <br />3.51 <br />1 0.811 <br />4.3 <br />681 <br />4.3 <br />10.64 <br />Permanent Culvert: <br />F2 30" <br />34.01 <br />F4130" <br />1 <br />18.36 <br />Temporary Culvert: <br />T -F1 30" Half Culvert <br />I <br />1 <br />1 <br />21.75 <br />T -F2 12" <br />1 0.47 <br />T -F3 24" <br />21.41 <br />lf Culvert <br />4.7 <br />lf Culvert <br />5.82 <br />Mdepth <br />eet does not include freeboard. <br />MR -166 App. B -2 11/14 <br />