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 4.0
East Clean Water Diversion (7.5qLoL- 10 Year Event
Material: Rlprap
Triangular channel
Left Right
Sideslope, Sideslope Slope (0/6)
Freeboard Freeboard Freeboard
Ratio Ratio
Depth (ft) % of Depth Wt. x (vxD)
7.5
1.00
PADER Method - Steep Slope Design
Flow Derived from:
Drainage Area "D" (10- year): 3.47
W. Div. Ditch #1 (10-Year): 4.44
Mine Water discharge: 0.50
Individual SWS: 0.88
Total: 9.29
SEDCAD Utility Run
Printed 11-21-2013
1
TR-88 Volume X1, App. B-72 05/14
w /o. Freeboard w/ Freeboard
Design Discharge,
9.29 CFS
Depth:
0.98 ft 1.98 ft
Top Width:
2.95 ft 5.95 ft
Velocity:
5.92 fps
X-Sectlon Area:
1.45 sq ft
Hydraulic Radius.
0A09 ft
Froude Number:
1.49
Mannings n:
0.0380
Dmln:
2.00 In
DSO:
3.00 In
Dmax:
4.50 In
Flow Derived from:
Drainage Area "D" (10- year): 3.47
W. Div. Ditch #1 (10-Year): 4.44
Mine Water discharge: 0.50
Individual SWS: 0.88
Total: 9.29
SEDCAD Utility Run
Printed 11-21-2013
1
TR-88 Volume X1, App. B-72 05/14