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
(:nnvnnh} 10°R_7f1(N P-1. 1 Crh—.h
4p Refuse Disposal Area - Channel RDA -5c, 3.5% Slope
Material: Riprap
Trapezoidal Channel
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Width (ft)
D Mult. x
epth (ft) % of Depth
Ratio Ratio
(VxD)
5.00 3.0:1 3.0:1 3.5
0.30
PADER Method - Steep Slope Design
•
•
SEDCAD Utility Run Printed 08- 10 -2ou9
w/o Freeboard w/ Freeboard
Design Discharge:
61.90 cfs
Depth:
1.14 ft 1.44 ft
Top Width:
11.86 ft 13.66 ft
Velocity:
6.43 fps
X- Section Area:
9.63 sq ft
Hydraulic Radius:
0.788 ft
Froude Number:
1.26
Manning's n:
0.0370
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
SEDCAD Utility Run Printed 08- 10 -2ou9