2014-09-22_PERMIT FILE - C1996083A ‎(2)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 9/22/2014
• 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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Structure Detail;
Structure #31(&1 "rap Chann
DITCH 111
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Siid�ope SidResloope Slope ( %)
10.97 cfs
Depth:
-
Depth (ft) % of Depth Mult. x (VxD)
3.00 1.5:1 1.5:1 8.0
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 J-1 00 Year Event-11 10513.sc4
TR -84
Volume XI, App. B -53
Printed 11 -24 -2013
02/14
1
w/o Freeboard w/ Freeboard
Design Discharge:
'-
10.97 cfs
Depth:
-
0.29 ft 1.29 ft
Top Width:
-- -- --
3.87 ft 6.87 ft
-
Velodty*;
- -
X- Section Area:
0.99 sq ft
Hydraulic Radius:
0.246 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 J-1 00 Year Event-11 10513.sc4
TR -84
Volume XI, App. B -53
Printed 11 -24 -2013
02/14
1