2001-12-11_PERMIT FILE - C1996084 ‎(5)‎

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: Exhibit 15-22 Mine Area P6 Sediment Control Pond 6-1
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
CoOYright t99e Pamela J. Schwab
Civil Software Design
2
w/o Freeboard w/ Freeboard
• Hydraulic Radius: 0.774
Froude Number: 0.81
Structure #2 (Null1
e. upper sws, e. coal
Structure #S Ri rap Channel)
Ditch D-61 d
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left
Bottom Right Freeboard Freeboard Freeboard
Sideslope
Width (ft)} Ratio Sideslope Slope (%)
Ratio
Depth (ft) % of Depth Mult. x
(VxD)
10.00 3.0:1 3.0:1 8.3 0.30
Riprap Channel Results:
•
Structure #6~Nu1/~
•
Simons/OSM Method -Steep Slope Design
Velocity and Manning's n calculations may not apply for this method.
w/o Freeboard w/ Freeboard
Design Discharge: 66.06 cfs
Depth: 0.55 ft 0.85 ft
Top Width: 13.27 ft 15.07 ft
Velocity:
X-Section Area: 6.34 sq ft
Hydraulic Radius: 0.472
Froude Numbers:
Manning's n":
Dmin: 3.00 in
D50: 9.00 in
Dmax: 11.25 in
Filename: Dilch D6-1d.sc4 Printed 06-29-2001