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
43
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Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
20.00 5.00 0.0120 1.50 0.00 0.9
Design Discharge = 0.13 cfs
Minimum pipe diameter: 1 - 4 inch pipe(s) required
Structure #65 (Erodible Channe/)
DCW-6C
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)
2.0:1 2.0:1 5.0 0.03001 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 8.51 cfs
Depth: 0.85 ft 1.15 ft
Top Width: 3.41 ft 4.61 ft
Velocity: 5.84 fps
X-Section Area: 1.46 sq ft
Hydraulic Radius: 0.382 ft
Froude Number: 1.58
Structure #64 (Cu/vent)
CCW-1 B
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
2,210.00 5.00 0.0130 3.75 0.00 0.90
Design Discharge = 87.84 cfs
Minimum pipe diameter: 1 - 72 inch pipe(s) required
Structure #63 (Cu/vent)
CSL Y-20
Filename: SG-1.sc4 Printed 10-28-2008