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
60

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 12.2 0.0300 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 2.34 cfs
Depth: 0.45 ft 0.75 ft
Top Width: 1.78 ft 2.98 ft
Velocity: 5.91 fps
X-Section Area: 0.40 sq ft
Hydraulic Radius: 0.199 ft
Froude Number: 2.21
Structure #17 LCulvert)
CSL Y-Z9
Culvert Inputs:
•
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
60.00 5.00 0.0240 2.25 0.00 0.9c
Design Discharge = 2.34 cfs
Minimum pipe diameter: 1 - 10 inch pipe(s) required
Structure #16 jErodible Channel)
DSL Y-5
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 9.1 0.03001 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 10.00 cfs
Depth: 0.81 ft 1.11 ft
Top Width: 3.24 ft 4.44 ft
Filename: SG-1.sc4 Printed 10-28-2008