2008-12-11_PERMIT FILE - C1980007A ‎(19)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 100 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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24-
0 Structure Detail:
Structure- #21 (Nonerodib/e 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: 7.95 cfs
Depth: 0.34 ft 0.64 ft
Top Width: 6.87 ft 12.92 ft
Velocity: 6.80 fps
X-Section Area: 1.17 sq ft
Hydraulic Radius: 0.169 ft
Froude Number: 2.90
Structure #40 (Erodible Channel)
D1-2A
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:
•
w/o Freeboard w/ Freeboard
Design Discharge: 7.95 cfs
Depth: 0.59 ft 0.89 ft
Top Width: 3.56 ft 5.36 ft
Velocity: 7.54 fps
X-Section Area: 1.05 sq ft
Hydraulic Radius: 0.281 ft
Filename: MB-1.sc4 Printed 10-22-2008