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 #18 (Riprap Channel
F14
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope
11.73 cis
Ratio Ratio
Depth (ft) /o of Depth Mult. x (VxD)
3.00 1.5:1 1.5:1 2.01
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
1
Printed 09-27-2013
TR -81 App. B-46 10/13
w/o Freeboard w/ Freeboard
Design Discharge:
11.73 cis
Depth:
0.36 ft 1.36 ft
Top Width:
4.07 ft 7.07 ft
Velocity*:
X -Section Area:
1.26 sq ft
Hydraulic Radius:
0.295 ft
Froude Number*:
Manning's n*:
-
—3.00
Dmin:
in
D50:
9.00 in
Dmax:
11.25 in
Velocity and Manning's n calculations may not apply for this method.
Filename: Pond F 100Year.sc4
1
Printed 09-27-2013
TR -81 App. B-46 10/13