2009-06-19_PERMIT FILE - C1996083A ‎(8)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 6/19/2009
• Doc Name: Appendix A to Appendix C Report, 11/10/03
• Section_Exhibit Name: Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detail:
Structure #3 (Erodible Channel)
F1
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Mult. x Velocity
Ratio Ratio Depth (ft) % of
Depth (VxD) (fps)
3.0:1 20.0:1 3.5 0.0250 0.30 6.0
Erodible Channel Results:
•
40
w/o Freeboard w/ Freeboard
Design Discharge: 3.36 cfs
Depth: 0.30 ft 0.60 ft
Top Width: 6.99 ft 13.89 ft
Velocity: 3.17 fps
X-Section Area: 1.06 sq ft
Hydraulic Radius: 0.151 ft
Froude Number: 1.43
Filenam2`-P&d F-100Yr.sc4 App-1312 PrR d'0"4-07-2009