2015-12-23_PERMIT FILE - C1996083A ‎(5)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 12/23/2015
• Doc Name: Appendix B - Protection of Hydrologic Balance
• Section_Exhibit Name: Volume XI Coal Mine Waste Disposal Area No. 3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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DITCH J1
OPERATIONS CONFIGURATION
Structure Detail;
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Depth:
Velocity (fps)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
Velocity:
1.5:1 1.5:1 1.2 0.0250
0.30
1 6.0
Erodible Channel Results:
Filename: Pond J_10Yr-Operations, revised.sc4
1
Printed 09-21-2015
TR -105 Volume XI, App. B-16 09/15
w/o Freeboard w/ Freeboard
Design Discharge:
1.77 cfs
Depth:
0.66 ft 0.96 ft
Top Width:
1.97 ft 2.87 ft
Velocity:
2.75 fps
X -Section Area:
0.64 sq It
Hydraulic Radius:
0.273 ft
Froude Number:
0.85
Filename: Pond J_10Yr-Operations, revised.sc4
1
Printed 09-21-2015
TR -105 Volume XI, App. B-16 09/15