2013-01-14_PERMIT FILE - C1996083A ‎(11)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 1/14/2013
• 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 #8 (Erodible Channel
F5
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right I Freeboard Freeboard Freeboard
Sideslope Sideslope Slope Manning's
Umltlng
Velocity (fps)
n
Ratio Ratio Depth (ft) % of Depth Mult. x (VxD)
3.46 ds
i
3.0:1 20.0:1 2.0 0.0250 0.30 1 6.0
Erodible Channel Results:
Filename: Pond F100 Year.sc4
1
Printed 10-29-2012
TR-76 App. B-21 11/12
w/o Freeboard w/ Freeboard
Design Discharge:
3.46 ds
Depth:
0.34 ft 0.64 ft
Top Width:
7.85 ft 14.75 ft
Velocity:
2.59 fps
X-Section Area:
1.34 sq ft
Hydraulic Radius:
0.170 ft
Froude Number:
1.10
Filename: Pond F100 Year.sc4
1
Printed 10-29-2012
TR-76 App. B-21 11/12