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
Culvert Inputs:
0
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
44.00 5.00 0.0240 10.50 0.00 0.90
Design Discharge = 52.73 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #62 (Erodible Channel)
DSG-2
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Freeboard Freeboard Limiting
Bottom Sideslo e Sideslo e Sloe Manning s n Velocity
Width (ft) p p p (%) g Depth (ft) % of Depth Mult. x Ratio Ratio (VxD) (fps)
2.00 2.0:1 2.0:1 6.0 0.03001 0.30 5.5
Erodible Channel Results:

Structure #61 (Cu/vent)
CSL Y-25
Culvert Inputs:
Culvert Results:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
42.00 5.00 0.0120 2.00 0.00 0.90
w/o Freeboard w/ Freeboard
Design Discharge: 6.37 cfs
Depth: 0.41 ft 0.71 ft
Top Width: 3.65 ft 4.85 ft
Velocity: 5.48 fps
X-Section Area: 1.16 scl ft
Hydraulic Radius: 0.302 ft
Froude Number: 1.71
Design Discharge = 6.37 cfs
Minimum pipe diameter: 1 - 15 inch pipe(s) required
Structure #60 (Erodible Channel)
44
Filename: SG-1.sc4 Printed 10-28-2008