2008-12-11_PERMIT FILE - C1980007A ‎(17)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 10 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-1
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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25
is
w/o Freeboard w/ Freeboard
Froude Number: 2.37
Structure #39 (Nonerodib/e Channel)
DI-7
Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Manning's n Mult. x
Ratio Ratio Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 3.0 0.0170 0.30
Nonerodible Channel Results:

w/o Freeboard w/ Freeboard
Design Discharge: 2.03 cfs
Depth: 0.44 ft 0.74 ft
Top Width: 1.77 ft 2.97 ft
Velocity: 5.16 fps
X-Section Area: 0.39 sq ft
Hydraulic Radius: 0.198 ft
Froude Number: 1.93
Structure #38 (Erodible Channel)
D1-6 East
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right Freeboard Freeboard Freeboard Limiting
Bottom Sideslope Sideslope Slope (%) Manning's n Mult. x Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
2.00 2.0:1 2.0:1 1.9 0.0350 0.30 5.5
Erodible Channel Results:
0
w/o Freeboard w/ Freeboard
Design Discharge: 0.07 cfs
Depth: 0.05 ft 0.35 ft
Top Width: 2.19 ft 3.39 ft
Velocity: 0.75 fps
X-Section Area: 0.10 sq ft
Filename: MB-1.sc4 Printed 10-21-2008