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 #29 (Riprap Channel
DITCH 1 - -19
Triangular Riprap Channel inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope - Sideslope - Slope (%)
0.46 cfs-
_
RatJIo, Ratio
Depth (ft) % of Depth Mult -x (VxD)
1.5:1 1.5:1 30.0
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-10 Year Event-013014.sc4
Printed 02-04-2014
TR-84 Volume X1, App. B-28 02/14
w/o Freeboard w/ Freeboard
Design Discharge:
0.46 cfs-
-- Depth:
0.05 -ft— 1.05 ft
Top Width:
-
0.15 ft 3.15 ft
-Velodty*:-
X-Section -Area:
--0-.100 s-q ft",--
Hydraulic Radius:
0.021 ft-
Froude Number*:
Manning's-n*:
-
Dmin:
3.00 In
DSO:
9.00 in
Dmax:
11.25 In
Velocity and Manning's n calculations may not apply for this method.
Filename: Pond J-10 Year Event-013014.sc4
Printed 02-04-2014
TR-84 Volume X1, App. B-28 02/14