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IX <br />ummary Coal Mine Waste Disposal Area Ditches and Culverts <br />Ditch Grade Minimum Grade IMaximum Grade I RipRap <br />Min I Max Depth I Velocitv I Depth I Velocitv I D5o Ind <br />Feet <br />IF1 <br />1 4.2 %1 <br />4.2% <br />4.31 <br />F2 <br />1 1.3%1 <br />1.3% <br />0.471 2.6 <br />F3 <br />1 4.4%1 <br />4.4% <br />1.401 <br />F4 <br />1 30.0%1 <br />30.0% <br />2.91 <br />F5 <br />1 2.0%1 <br />2.0% <br />0.401 2.1 <br />F6 <br />1 1.1%1 <br />1.1% <br />13.91 1.201 13.9 <br />F7 <br />1 2.0%1 <br />2.0% <br />6.21 0.101 6.17 <br />F7a <br />1 33.0%1 <br />33.0% <br />3.41 0.341 3.4 <br />F8 <br />1 4.6%1 <br />4.6% <br />6.31 1.541 6.3 <br />F9 <br />1 30.0%1 <br />30.0% <br />Trapezoidal Channel <br />F10 <br />1 2.2%1 <br />2.2% <br />2.74 <br />F11 <br />1 3.4%1 <br />3.4% <br />7.98 <br />F12 <br />1 3.6%1 <br />3.6% <br />2.6 <br />F13 <br />1 2.0%1 <br />2.0% <br />3.1 <br />F14 (2 %) <br />1 2.0%1 <br />2.0% <br />4.0 <br />F14 (30 %) <br />1 26.0%1 <br />26.0% <br />3.3 <br />F15 <br />1 1.8%1 <br />1.8% <br />7.5 <br />F16 <br />1 10.0%1 <br />10.0% <br />11.1 <br />F17 <br />1 1.0%1 <br />1.0% <br />2.3 <br />F18 <br />1 3.4%1 <br />3.4% <br />1.7 <br />F19 <br />1 2.9%1 <br />2.9% <br />2.61 0.401 2.6 <br />F20 <br />1 2.0%1 <br />2.0% <br />F21 -1 <br />1 20.0%1 <br />30.0% <br />F21 -2 <br />1 30.0%1 <br />30.0% <br />F22 <br />1 1.0%1 <br />1.0% <br />F23 <br />1 1.3%1 <br />1.3% <br />East Div. <br />1 5.0%1 <br />32.0% <br />W. Div #2 <br />1 4.0%1 <br />4.0% <br />W. Div #1 <br />1 3.5%1 <br />3.5% <br />Culvert: <br />F2130" <br />F4130" <br />F5130" Half Culvert <br />Feet <br />I Ft /Sec <br />I Feet I Ft /Sec <br />0.421 <br />4.31 <br />0.421 4.3 <br />0.471 <br />2.61 <br />0.471 2.6 <br />0.341 <br />3.81 <br />0.341 3.8 <br />1.401 <br />14.01 <br />1.401 14.0 <br />0.391 <br />2.91 <br />0.391 2.9 <br />0.401 <br />2.11 <br />0.401 2.1 <br />Trapezoidal Channel <br />1.201 <br />13.91 1.201 13.9 <br />0.371 <br />4.21 0.371 4.2 <br />0.101 <br />6.21 0.101 6.17 <br />0.541 <br />3.71 0.541 3.7 <br />0.341 <br />3.41 0.341 3.4 <br />0.391 <br />3.81 0.391 3.8 <br />1.541 <br />6.31 1.541 6.3 <br />Trapezoidal Channel <br />Trapezoidal Channel <br />0.481 <br />2.71 <br />0.481 <br />2.74 <br />1.301 <br />8.01 <br />1.301 <br />7.98 <br />0.681 <br />2.61 <br />0.681 <br />2.6 <br />0.301 <br />3.11 <br />0.301 <br />3.1 <br />0.501 <br />4.01 <br />0.501 <br />4.0 <br />0.491 <br />3.31 <br />0.491 <br />3.3 <br />0.501 <br />7.51 <br />0.501 <br />7.5 <br />0.901 <br />11.11 <br />0.901 <br />11.1 <br />0.561 <br />2.31 <br />0.561 <br />2.3 <br />0.211 <br />1.71 <br />0.211 <br />1.7 <br />Trapezoidal Channel <br />0.401 <br />2.61 0.401 2.6 <br />0.811 <br />4.31 0.811 4.3 <br />JI Flow depth in feet does not include freeboard. I <br />24 <br />15 <br />24 <br />12 <br />m <br />m <br />18 <br />12 <br />18 <br />0 -18" <br />Flow <br />cfs <br />6.73 <br />5.17 <br />3.83 <br />38.17 <br />3.99 <br />3.93 <br />37.95 <br />37.95 <br />5.22 <br />1.40 <br />9.63 <br />3.56 <br />5.03 <br />22.28 <br />11.73 <br />11.73 <br />0.96 <br />21.41 <br />2.14 <br />2.41 <br />8.88 <br />6.96 <br />11.09 <br />11.59 <br />1.08 <br />0.12 <br />21.75 <br />3.37 <br />10.64 <br />34.011 <br />18.36 <br />21.75 <br />TR -89 App. B -2 08/14 <br />