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
r,,., Mm kf 400a _9fNf1 D.,. 1, i
Structure Detail;
Structure #17 ( Riprap Channel
F13
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
20.73 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
1.5:1 1.5:1 2.0
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename: Pond F-1 00 Year.sc4
Printed 12 -27 -2012
TR -76 App. B -30 12/12
w/o Freeboard w/ Freeboard
Design Discharge:
20.73 cfs
Depth:
1.70 ft 2.00 ft
Top Width:
5.10 ft 6.00 ft
Velocity:
4.78 fps
X- Section Area:
4.34 sq ft
Hydraulic Radius:
0.707 ft
Froude Number:
0.91
Manning's n:
0.0350
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
Filename: Pond F-1 00 Year.sc4
Printed 12 -27 -2012
TR -76 App. B -30 12/12