2014-09-22_PERMIT FILE - C1996083A ‎(2)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 9/22/2014
• 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
1
Structure Detail:
Structure #9 6Erodible Channel)
DITCNI5
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right -
Freeboard Freeboard Freeboard
limiting
Sideslope Sideslope Slope ( %) Manning's n
Depth:
Velocity (fps)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
Velocity.
1.5:1 1.5:1 0.1 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 -20 02/14
w/o Freeboard w/ Freeboard
Design Discharge:
0.66 cfs
Depth:
0.72 ft 1.02 ft
Top Width:
2.16 ft 3.06 ft
- -
Velocity.
0.84 fps
X- Section Area:
0.78 sq ft
Hydraulic Radius:
0.300 ft
Froude Number:
0.25
Filename: Pond J_10 Year Event_013014.sc4 Printed 02-04 -2014
TR -84 Volume XI, App. B -20 02/14