2012-11-21_PERMIT FILE - C1982056A ‎(2)‎

• Permit No: C1982056A
• IBM Index Class Name: Permit File
• Doc Date: 11/21/2012
• Doc Name: COAL REFUSE DISPOSAL AREA EXPANSION
• Section_Exhibit Name: Exhibit 08EE Coal Refuse Disposal Area Expansion Drainage Designs
• Media Type: D
• Archive: Yes

SEDCAD 4.0
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• Refuse Disposal
Area -
Ditch RDA -4a, 1.5%
Slope
Mult x
Depth .
Velocity
Ratio Ratio
(Temporary
Diversion
for Initial Fill Sequencing)
0.30
Material: Graded loam to cobbles when noncolloidal
Trapezoidal Channel
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning 's n
Width (ft)
Mult x
Depth .
Velocity
Ratio Ratio
Depth (ft) % of
(VxD)
(fps)
10.00 3.0:1 3.0:1 1.5 0.0300
0.30
5.0
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
19.20 cfs
Depth:
0.49 ft 0.79 ft
Top Width:
12.92 ft 14.72 ft
Velocity:
3.45 fps
X- Section Area:
5.57 sq ft
Hydraulic Radius:
0.426 ft
Froude Number:
0.92
•
SEDCAD Utility Run Printed 09 -28 -2009