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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Structure Detail.,
Structure #21 (Nonerodible Channel)
DI -2
Triangular Nonerodible Channel Inputs:
Material: Concrete
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Manning's n Mult. x
Ratio Ratio Depth (ft) % of Depth (VxD)
20.0:1 0.2:1 5.0 0.0150 0.30
Nonerodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 4.98 cfs
Depth: 0.29 ft 0.59 ft
Top Width: 5.76 ft 11.81 ft
Velocity: 6.04 fps
X-Section Area: 0.82 sq ft
Hydraulic Radius: 0.142 ft
Froude Number: 2.82
Structure #40 Erodible Channel)
DI-2A
Triangular Erodible Channel Inputs:
Material: 4" riprap
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Mult. x Velocity
Ratio Ratio Depth (ft) % of
Depth (VxD) (fps)
3.0:1 3.0:1 50.0 0.0600 0.30 7.0
Erodible Channel Results:
r,
f?
w/o Freeboard w/ Freeboard
Design Discharge: 4.98 cfs
Depth: 0.50 ft 0.80 ft
Top Width: 2.98 ft 4.78 ft
Velocity: 6.70 fps
X-Section Area: 0.74 sq ft
Hydraulic Radius: 0.236 ft
Filename: MB-1.sc4 Printed 10-21-2008