2018-03-30_PERMIT FILE - C1996083A

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 3/30/2018
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detail;
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Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
44.01 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
1.5:1 1.5:1 30.0
1.00
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename: Pond F-1 00 Year.sc4
1
Printed 06-21-2017
TR -113 App B-32 06/17
w/o Freeboard w/ Freeboard
Design Discharge:
44.01 cfs
Depth:
1.60 ft 2.60 ft
Top Width:
4.79 ft 7.79 ft
Velocity:
11.51 fps
X -Section Area:
3.82 sq ft
Hydraulic Radius:
0.664 ft
Froude Number:
2.27
Manning's n:
0.0540
Dmin:
7.00 in
D50:
12.00 in
Dmax:
18.00 in
Filename: Pond F-1 00 Year.sc4
1
Printed 06-21-2017
TR -113 App B-32 06/17