2009-12-28_PERMIT FILE - C1996083A ‎(10)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 12/28/2009
• 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 #22 (Erodible Channel)
DIRECT
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)
1.5:1 1.5:1 2.0 0.0250
0.30
6.0
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Erodible Channel Results:
Filenartti2' & F- 100Yr.sc4 pp Pnnt 4 - 07 - 2009
6 0/07
w/o Freeboard w/ Freeboard
Design Discharge:
2.28 cfs
Depth:
0.66 ft 0.96 ft
Top Width:
1.97 ft 2.87 ft
Velocity:
3.54 fps
X- Section Area:
0.64 sq ft
Hydraulic Radius:
0.273 ft
Froude Number:
1.09
Filenartti2' & F- 100Yr.sc4 pp Pnnt 4 - 07 - 2009
6 0/07