2008-12-11_PERMIT FILE - C1980007A ‎(35)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 25 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
rnn.,rinM 4000 _Onn7 D-1. I CrL....?L.
Structure #9 (Culvert)
C3-IC
Culvert Inputs:
•
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
20.00 5.00 0.0240 1.00 0.00 0.91
Design Discharge = 0.14 cfs
Minimum pipe diameter: 1 - 4 inch pipe(s) required
Structure #8 (Nonerodible Channel)
D3-3A
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: 0.23 cfs
Depth: 0.19 ft 0.49 ft
Top Width: 0.78 ft 1.98 ft
Velocity: 2.98 fps
X-Section Area: 0.08 sq ft
Hydraulic Radius: 0.087 ft
Froude Number: 1.68
20

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Structure #7 (Nonerodlble Channel)
D3-3B
Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Printed
Filename: MB-3.sc4 10-21-2008