2014-09-02_PERMIT FILE - C1996083A ‎(2)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 9/2/2014
• Doc Name: Appendix B - Protection of Hydrologic Balance
• Section_Exhibit Name: Volume XI Coal Mine Waste Disposal Area No. 3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r--; kf Iona 22n1n o-1. i
Structure Detail;
Structure #22 (Erodible Channel
DITCH J -IS
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)
1.5:1 1.5:1 10.0 0.0250
0.30 6.0
Erodible Channel Results:
Filename: Pond J-10 Year Event 013014.sc4
Printed 02 -04 -2014
TR -84 Volume XI, App. B -24 02/14
w/o Freeboard_ w /-Freeboard
Design Discharge:
0.75 cfs
Depth:
Top Width:
Velocity:
-- ........___ - 0.32 ft 0.62 ft
0.95 ft 1.85 ft
4.89 fps
X- Section Area:
-- ... ...
Hydraulic Radius:
0.15 sq ft
- _ -
.... - -
0.132 ft
Froude Number:
2.16
Filename: Pond J-10 Year Event 013014.sc4
Printed 02 -04 -2014
TR -84 Volume XI, App. B -24 02/14