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
1
Structure Detail:
Structure #13 "Erodible Channel)
DITCH J10
Trapezoidal Erodible Channel Inputs:
Material; Shales and hardpans
Bottom Left Right
Freeboard Freeboard, Freeboard
Limiting
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 1.0 0.02501
1.00
6.0
Erodible Channel Results:
Filename: Pond J_100 Year Event-1 10513.sc4 Printed 11-20-2013
TR-84 Volume X1, App. B-52 02/14
w/o Freeboard W/ Freeboard
Design Discharge:
4.87 cfs
Depth:
0.44 ft 1.44 ft
Top Width:
4.33 ft 7.33 ft
Velocity:
2.98 fps
X-Section Area:
1.63 sq ft
Hydraulic Radius:
0.354 ft
Froude Number:
. . ........
0.86
Filename: Pond J_100 Year Event-1 10513.sc4 Printed 11-20-2013
TR-84 Volume X1, App. B-52 02/14