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 - Channel RDA -5c, 6.0% Slope
Material: Riprap
Trapezoidal Channel
Left Right Freeboard Freeboard Freeboard
Width
Bottom
(ft) Sideslope Sideslope Slope ( %) Depth (ft) % of Depth Mult. x
Ratio Ratio (VxD)
5.00 3.0:1 3.0:1 6.0 0.30
PADER Method - Steep Slope Design
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•
SEDCAD Utility Run Printed 08 -10 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
61.90 cfs
Depth:
1.13 ft 1.43 ft
Top Width:
11.75 ft 13.55 ft
Velocity:
6.57 fps
X- Section Area:
9.42 sq ft
Hydraulic Radius:
0.778 ft
Froude Number:
1.29
Manning's n:
0.0470
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
SEDCAD Utility Run Printed 08 -10 -2009