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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58
CSL Y-28
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
34.00 5.00 0.0240 2.25 0.00 0.90
Design Discharge = 0.58 cfs
Minimum pipe diameter: 1 - 6 inch pipe(s) required
Structure #29 (Erodible Channel)
DSL Y-7
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
Depth (ft) % of Depth Velocity
(fps)
(VxD)
Ratio Ratio
1.0:1 3.0:1 8.3 0.03001 0.30 5.5
•
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
79.00 5.00 0.0240 3.00 0.00 0.90
Culvert Results:
Design Discharge = 5.97 cfs
0 Minimum pipe diameter: 1 - 15 inch pipe(s) required
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 5.97 cfs
Depth: 0.68 ft 0.98 ft
Top Width: 2.72 ft 3.92 ft
Velocity: 6.47 fps
X-Section Area: 0.92 sq ft
Hydraulic Radius: 0.304 ft
Froude Number: 1.96
Structure #24 (Culvert)
CSL Y-8
Culvert Inputs:
Filename: SG-1.sc4 Printed 10-28-2008