2012-11-09_PERMIT FILE - C1996083A

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 11/9/2012
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

Appendix B
Summary
Coal Mine Waste Disposal Area Ditches and Culverts
Ditch Grade
Minimum Grade IMaximum Grade I
RipRap I
Peak
Min I
Max
Depth
Velocity Depth I Velocity
50 Inch
Flow
Feet
Ft/Sec I Feet I Ft/Sec I
cfs
F 1 1
3.5%1
3.5%1
0.301
3.11 0.301 3.11
1
2.89
F2 1
2%
2%1
0.351
2.61 0.351 2.61
1
3.61
F3 1
2%
2%1
0.401
2.61 0.401 2.61
1
3.74
F4
1 10%
40%1
ITrapezoidal
Channel 1
241
24.49
F5
1 2%
2%1
0.341
2.61 0.341
2.61
1 3.47
F6
1 2%
2%1
0.401
2.61 0.401
2.61
1 3.66
F7
1 2%
2%1
ITrapezoidal Channel
1 151
45.76
F7a
1 33%
33%1
1.261
14.61 1.261 14.61
151
45.76
F8
1 2%
2%1
0.271
2.21 0.271 2.21
1 1.89
F9
1 5%1
40%1
ITrapezoidal Channel
1 91
0.65
IF 10
1 2%
2%1
0.381
2.81 0.381 2.81
1 4.53
F11
I 10%
50%1
ITrapezoidal Channel
1 211
27.83
F12
1 20/a
2%1
0.341
2.61 0.341 2.61
1 3.43
IF 13
1 2%
2%1
0.981
4.61 0.981 4.61
1 6.72
F14
1 20%
50%1
ITrapezoidal Channel
181
35.52
F15
1 2%1
30%1
ITrapezoidal Channel
1 121
2.34
F16
I 10%
io%l
ITrapezoidal Channel
1 91
5.19
F17
1 2%
2%1
0.251
2.11 0.251 2.11
1 1.47
F18
1 2.5%1
2.5%1
0.561
3.81 0.561 3.81
1 2.93
F19
1 2.0%1
2.0%1
0.381
2.81 0.381 2.81
1 4.71
F20
1 30.0%1
30.0%1
ITrapezoidal Channel
1 181
4.86
F21
1 2.0%1
2.0%1
0.311
2.41
0.311
2.4
2.62
East Div.
1 2.5%
5%1
ITrapezoidal
Channel
1 91
9.96
W. Div #1
1 2%
2%1
ITrapezoidal
Channel
1
1 5.99
W. Div #21
2.0%
2%1
ITrapezoidal
Channel
1
1 0.74
Culvert:
F2142"
I
I
I
I I
I
1
42.25
Flow depth
in feet does not include
freeboard.
MR -132 App. B -9 10/12