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
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1
Structure Detail:
Structure #12 ( Erodible Channel)
DITCH J8
Trapezoidal Erodible Channel Inputs:
Material: Alluvial silts noncoiloidal
Bottom Left Right
Freeboard Freeboard Freeboard
Llmiting
Sideslope Sideslope Slope ( %) Manning's n
Width (ft)
Depth:
Velocity (fps)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
Velocity:
3.00 1.5:1 1.5:1 0.7 0.0200
1.00
6.0
Erodible Channel Results:
Filename: Pond J100 Year Event-1 10513.sc4 Printed 11 -20 -2013
TR -84 Volume XI, App. B -50 02/14
w/o Freeboard w/ Freeboard
Design Discharge:
5.94 cfs
Depth:
0.49 ft 1.49 ft
Top Width:
4.46 ft 7.46 ft
Velocity:
3.28 fps
X- Section Area:
1.81 sq ft
Hydraulic Radius:
0.381 ft
Froude Number:
0.91
Filename: Pond J100 Year Event-1 10513.sc4 Printed 11 -20 -2013
TR -84 Volume XI, App. B -50 02/14