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
is Refuse Disposal Area - Channel RDA -1b, 20% Slope
Material: Riprap
Trapezoidal Channel
Left Right
Freeboard Freeboard Freeboard
Bottom
Width (ft) Sideslope Sideslope Slope ( %)
Depth (ft) % of De pth Mult. x
Dep
Ratio Ratio
(VxD)
8.00 3.0:1 3.0:1 20.0
0.30
PADER Method - Steep Slope Design
0
•
SEDCAD Utility Run Printed 09 -28 -2009
w/o Freeboard w/ Freeboard
Design Discharge:
93.70 cfs
Depth:
0.95 ft 1.25 ft
Top Width:
13.71 ft 15.51 ft
Velocity:
9.06 fps
X- Section Area:
10.34 sq ft
Hydraulic Radius:
0.737 ft
Froude Number:
1.84
Manning's n:
0.0600
Dmin:
5.00 in
D50:
9.00 in
Dmax:
12.00 in
SEDCAD Utility Run Printed 09 -28 -2009