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:
F8
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's in Depth (ft) % of Depth Velocity (fps
Ratio Ratio Mult. x (VxD)
3.0:1 15.0:1 4.6 0.02501 0.30 I 6.1
Erodible Channel Results:
Filename: Pond F100 Year sc4
I
Printed 06-21-2017
TR -113 App. B-37 06/17
w/o Freeboard w/ Freeboard
Design Discharge:
10.01 cfs
Depth:
0.48 It 0.78 ft
Top Width:
8.58 It 13.98 ft
Velocity:
4.89 fps
X -Section Area:
Hydraulic Radius:
Froude Number:
2.05 sq It
0.237 ft
1.77
Filename: Pond F100 Year sc4
I
Printed 06-21-2017
TR -113 App. B-37 06/17