2013-01-14_PERMIT FILE - C1996083A ‎(11)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 1/14/2013
• Doc Name: Appendix A through Appendix C
• Section_Exhibit Name: Volume IX Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r,—,,. M,e 1009 -onin 0-1. 1 Q,1- -k
Structure Detail;
Structure #11 (Erodible Channel)
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:
3.0:1 15.0:1 1.3 0.0250
0.30
6.0
Erodible Channel Results:
Filename: Pond F-1 00 Year.sc4
Printed 11 -05 -2012
TR -76 App. B -25 11/12
w/o Freeboard w/ Freeboard
Design Discharge:
7.63 cfs
Depth:
0.55 ft 0.85 ft
Top Width:
9.82 ft 15.22 ft
Velocity:
2.85 fps
X- Section Area:
2.68 sq ft
Hydraulic Radius:
0.271 ft
Froude Number:
0.96
Filename: Pond F-1 00 Year.sc4
Printed 11 -05 -2012
TR -76 App. B -25 11/12