2008-12-11_PERMIT FILE - C1980007A ‎(32)‎

• 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 SG-1 Pond
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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42

w/o Freeboard w/ Freeboard
Top Width: 5.18 ft 6.38 ft
Velocity*:
X-Section Area: 1.35 sq ft
Hydraulic Radius: 0.254 ft
Froude Number*:
Manning's n*:
Dmin: 3.00 in
D50: 9.00 in
Dmax: 11.25 in
Velocity and Manning's n calculations may not apply for this method.
Structure #67 (Cu/vent)
Detention Basin
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
1.00 5.00 0.0120 6.00 0.00 0.90
Culvert Results:
Design Discharge = 31.40 cfs
Minimum pipe diameter: 1 - 24 inch pipe(s) required
Structure #78 (Culvert)
CCW-IA
Culvert Inputs:
Culvert Results:
•
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
316.00 5.00 0.0240 5.00 0.00 0.91
Design Discharge = 32.00 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #66 (Cu/vert)
CCW2
Culvert Inputs:
Filename: SG-1.sc4 Printed 10-28-2008