2013-02-11_PERMIT FILE - C1996083A

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 2/11/2013
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Structure Detail:
Structure #38 (Erodible Channel
F18
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right ` Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Velocity (fps)
Ratio Ratio Depth (ft) % of Depth Mult x (VxD)
0.34 ft 0.64 ft
- - - -- - - --
3.0:1 15.0:1 3.2 0.0250 0.30
6.0
Erodible Channel Results:
Filename: Pond F100 Year.sc4
1
Printed 11 -05 -2012
TR -76 App. B -36 11/12
w/o Freeboard w/ Freeboard
Design Discharge:
3.46 cis
— Depth
- - - - - - - -- -- - - -- - -- - - - -
0.34 ft 0.64 ft
- - - -- - - --
Top Width:
6.17 ft 11.57 ft
Velocity:
3.27 fps
X- Section Area:
1.06 sq ft
Hydraulic Radius:
- -- - -- - - -
0.170 ft
- - - --
Froude Number:
1.39
Filename: Pond F100 Year.sc4
1
Printed 11 -05 -2012
TR -76 App. B -36 11/12