2008-12-11_PERMIT FILE - C1980007A ‎(33)‎

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

SEDCAD 4 for Windows
1000 _onn7 Do 1o I c..ti..-K
65
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Mult. X Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
1.0:1 3.0:1 9.5 0.0300 1 0.30 4.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.24 cfs
Depth: 0.20 ft 0.50 ft
Top Width: 0.79 ft 1.99 ft
Velocity: 3.04 fps
X-Section Area: 0.08 scl ft
Hydraulic Radius: 0.088 ft
Froude Number: 1.70
Structure #Z LCulvert)
CSL Y-1
0 Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
52.00 5.00 0.0120 2.67 0.00 0.9c
Design Discharge = 0.24 cfs
Minimum pipe diameter: I - 4 inch pipe(s) required
Structure #1 (Null)
Outlet
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Filename: SG-1.sc4 Printed 10-28-2008