2009-01-07_PERMIT FILE - C1981022 ‎(7)‎

• Permit No: C1981022
• IBM Index Class Name: Permit File
• Doc Date: 1/7/2009
• Doc Name: Bear Creek Fan Site ‎(Culvert Design, Main Channel Design, & Main Postmine Channel Design)‎
• Section_Exhibit Name: Exhibit 2.05-E3 Section 10ww
• Media Type: D
• Archive: No

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Bear Creek Fansite -Side Postmine Channel Design
Material: Riprap
Trapezoidal Channel
Bottom Left Right Freeboard Freeboard Freeboard
Sideslope Sidestope Slope (%)
Width (ft) Ratio Ratio Depth (ft) % of Depth Mult. x
(VxD)
1.00 3.0:1 3.0:1 40.0 ~ 0.30
PADER Method -Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 5.25 cfs i
Depth: 0.38 ft 0.68 ft
Top Width: 3.26 ft 5.06 ft
Velocity:
- 6.56 fps
-- _ __
-~- _- __--- ----
X-Section Area 0.80 sq ft
Hydraulic Radius: 0.237 ft
Froude Number: 2.33
Manning's n: 0.0550
Dmin:
_
------ 3.00 in
-- -- -
D50: 6.00 in
Dmax: 9.00 in
SEDCAD Utility Run Printed 11-18-2008