2016-11-07_PERMIT FILE - C1996083A

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 11/7/2016
• 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
Structure Detail;
Structure #13 (Riprap Channel)
F9
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right I Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Ratio Ratio Depth (ft) % of Depth Mult. x (VxD)
1.5:1 1.5:1 30.01 1.00
Riprap Channel Results:
Simons/OSM Method - Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
Filename: Pond F 100Year.sc4
TR -81 App. B-41
Printed 07-24-2013
09/13
w/o Freeboard w/ Freeboard
Design Discharge:
1.40 cfs
Depth:
0.06 ft 1.06 ft
Top Width:
0.18 ft 3.18 ft
Velocity*:
X -Section Area:
0.01 sq ft
Hydraulic Radius:
0.025 ft
Froude Number*:
Manning's n*:
Dmin:
4.00 in
D50:
12.00 in
Dmax:
15.00 in
Velocity and Manning's n calculations may not apply for this method.
Filename: Pond F 100Year.sc4
TR -81 App. B-41
Printed 07-24-2013
09/13