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 #22 (Erodible Channe /�
DIRECT
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope Manning's n
Top Width:
Velocity (fps)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
X- Section Area:
1.5:1 1.5:1 2.0 0.0250 0.30
6.0
Erodible Channel Results:
Filename: Pond F100 Year.sc4
1
Printed 10-29 -2012
TR -76 App. B-46 11/12
w/o Freeboard w/ Freeboard
Design Discharge:
Depth:
1.21 cfs
0.52 ft 0.82 ft
Top Width:
1.55 ft 2.45 ft
Velocity:
3.02 fps
X- Section Area:
0.40 sq ft
Hydraulic Radius:
0.215 ft
Froude Number:
1.05
Filename: Pond F100 Year.sc4
1
Printed 10-29 -2012
TR -76 App. B-46 11/12