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
• Refuse Disposal Area - Channel RDA -ib, 13.7% Slope
Material: Riprap
Trapezoidal Chanel
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslo a Sideslo a Sloe
Width (ft) p p Slope )
Depth (ft) % of Depth Mult. x
Ratio Ratio
(VxD)
8.00 3.0:1 3.0:1 13.7
0.30
PADER Method - Steep Slope Design
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard w/ Freeboard.
Design Discharge:
93.70 cis
Depth:
0.96 It 1.26 ft
Top Width:
13.73 It 15.53 ft
Velocity:
9.02 fps
X- Section Area:
10.39 sq ft
Hydraulic Radius:
0.740 ft
Froude Number:
1.83
Manning's n:
0.0500
Dmin:
5.00 in
D50:
9.00 in
Dmax:
12.00 in
SEDCAD Utility Run Printed 09 -28 -2009