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
56

Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
76.00 5.00 0.0240 3.00 0.00 0.9
Design Discharge = 4.66 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #36 (Culvert)
CSL Y-10
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) (Ke)
168.00 5.00 0.0240 10.97 0.00 0.90
Design Discharge = 102.08 cfs
Minimum pipe diameter: 1 - 42 inch pipe(s) required
Structure #34 (Erodible Channel)
DSL Y-8C
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 10.9 0.03001 0.30 5.5
Culvert Results:
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 2.95 cfs
Depth: 0.50 ft 0.80 ft
Top Width: 1.98 ft 3.18 ft
Velocity: 6.01 fps
X-Section Area: 0.49 sq ft
Hydraulic Radius: 0.222 ft
Froude Number: 2.13
Structure #33 (Cu/vert)
0 CSL Y-9
Filename: SG-1.sc4 Printed 10-28-2008