2025-07-10_PERMIT FILE - C1996083

• Permit No: C1996083
• IBM Index Class Name: Permit File
• Doc Date: 7/10/2025
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure Detail:
Structure 128 (Erodlble Channel)
WEST DIV -2
Triangular Erodible Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Depth:
Velocity (fps)
Ratio Ratio
De ft % of De
Depth ()
p pth Mult. x (VxD)
Velocity:
1.5:1 15.0:1 4.0 0.0392
1.00
1 6.0
Erodible Channel Results:
Filename. Pond F 100Year.sc4
I
Printed 04-24-2015
TR -98 App. B-53 04/15
w/o Freeboard w/ Freeboard
Design Discharge:
3.52 cis
Depth:
0.40 ft 1.40 ft
Top Width:
6.67 ft 23.17 ft
Velocity:
2.61 fps
X -Section Area:
1.35 sq ft
Hydraulic Radius:
0.201 ft
Froude Number:
1.02
Filename. Pond F 100Year.sc4
I
Printed 04-24-2015
TR -98 App. B-53 04/15