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Appendix B <br />Summary Coal Mine Waste Disposal Area <br />Ditches and Culverts <br />Ditch Grade <br />Minimum Grade <br />Maximum Grade <br />Ri Rap <br />Peak <br />Min <br />Max <br />Depth <br />Velocity <br />Depth Velocity <br />50 InCh <br />Flo <br />Feet <br />Ft/Sec <br />Feet Ft/Sec <br />cfs <br />F1 1 <br />4.2%1 <br />4.2%1 <br />0.421 <br />4.31 <br />0.421 4.31 <br />6.73 <br />F2 1 <br />1.3%1 <br />1.3% <br />-6.471 <br />2.61 <br />0.471 2.61 <br />5.17 <br />F3 1 <br />4.4%1 <br />4.4%1 <br />0.341 <br />3.81 <br />0.341 3.81 <br />1 <br />3.83 <br />F4 1 <br />30.0%1 <br />30.0%1 <br />1.401 <br />14.01 <br />1.401 14.01 <br />241 <br />38.17 <br />F5 1 <br />2.0%1 <br />2.0%1 <br />0.391 <br />2.91 <br />0.391 2.91 <br />1 <br />3.99 <br />F6 1 <br />1.1%1 <br />1.1%1 <br />0.401 <br />2.11 <br />0.401 2.11 <br />1 <br />3.93 <br />F7 1 <br />2.0%1 <br />2.0%1 <br />ITrapezoidal <br />Channel 1 <br />151 <br />37.95 <br />F7a 1 <br />33.0%1 <br />33.0%1 <br />1.201 <br />13.91 <br />1.201 13.91 <br />241 <br />37.95 <br />F8 1 <br />4.6%1 <br />4.6%1 <br />0.371 <br />4.21 <br />0.371 4.21 <br />1 <br />5.22 <br />F9 1 <br />30.0%1 <br />30.0%1 <br />0.101 <br />6.21 <br />0.101 6.171 <br />121 <br />1.40 <br />F10 1 <br />2.2%1 <br />2.2%1 <br />U541 <br />3.71 <br />0.541 3.71 <br />1 <br />9.63 <br />F11 <br />1 3.4%1 <br />3.4%1 <br />0.341 <br />3.41 <br />0.341 3.41 <br />3.56 <br />F12 <br />1 3.6%1 <br />3.6%1 <br />0.391 <br />3.81 <br />0.391 3.81 <br />5.03 <br />F13 <br />1 2.0%1 <br />2.0%1 <br />1.541 <br />6.31 <br />1.541 6.31 <br />22.28 <br />F14 (2 %) <br />1 2.0%1 <br />2.0%1 <br />ITrapezoidal <br />Channel <br />91 <br />11.73 <br />F14 (30 %) <br />1 26.0%1 <br />26.0%1 <br />ITrapezoidal <br />Channel <br />181 <br />11.73 <br />IF 15 <br />1 1.8%1 <br />1.8%1 <br />0.481 <br />2.71 <br />0.481 <br />2.741 <br />1 0.96 <br />F16 <br />1 10.0%1 <br />10.0%1 <br />1.301 <br />8.01 <br />1.301 <br />7.981 <br />18 <br />21.41 <br />F17 <br />1 1.0%1 <br />1.0%1 <br />0.681 <br />2.61 <br />0.681 <br />2.61 <br />1 2.14 <br />IF 18 <br />1 3.4%1 <br />3.4%1 <br />0.301 <br />3.11 <br />0.301 <br />3.11 <br />1 2.41 <br />IF 19 <br />1 2.9%1 <br />2.9%1 <br />0.501 <br />4.01 <br />0.501 <br />4.01 <br />8.88 <br />F20 <br />1 2.0%1 <br />2.0%1 <br />0.491 <br />3.31 <br />0.491 <br />3.31 <br />6.96 <br />F21 -1 <br />1 20.0%1 <br />30.0%1 <br />0.501 <br />7.51 <br />0.501 <br />7.51 <br />121 <br />11.09 <br />F21 -2 <br />1 30.0%1 <br />30.0%1 <br />0.901 <br />11.11 <br />0.90 <br />11-11 <br />181 <br />11.59 <br />F22 <br />1 1.0%1 <br />1.0%1 <br />0.561 <br />2.31 <br />0.561 <br />2.31 <br />1 1.08 <br />F23 <br />1 1.3%1 <br />1.3%1 <br />0.211 <br />1.71 <br />0.211 <br />1.71 <br />1 0.12 <br />East Div. <br />1 2.5%1 <br />5.0%1 <br />ITrapezoidal <br />Channel <br />1 121 <br />19.80 <br />W. Div #2 <br />1 4.0%1 <br />4.0%1 <br />0.331 <br />2.31 <br />0.331 2.31 <br />1 1.98 <br />22.0%1 <br />22.0%1 <br />ITrapezoidal <br />Channel <br />1 121 <br />1.98 <br />W. Div #1 <br />1 3.5%1 <br />3.5%1 <br />1.101 <br />4.11 <br />1.101 4.11 <br />1 9.19 <br />Culvert: <br />F2130" <br />1 <br />1 34.01 <br />F4130" <br />1 <br />1 18.36 <br />F5112" <br />(temporary) <br />1 .47 <br />F6124" <br />(temporary) <br />1 21.41 <br />Flow depth in feet does not include freeboard. <br />MR -161 App. B -2 09/14 <br />