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
52
• Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) ( ) (Ke)
42.00 5.00 0.0240 3.75 0.00 0.9(
Design Discharge = 0.90 cfs
Minimum pipe diameter: 1 - 6 inch pipe(s) required
Structure #46 jErodible Channel)
DSL )I-10
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 7.2 0.0300 0.30 I 5.5
•
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.54 cfs
Depth: 0.28 ft 0.58 ft
Top Width: 1.13 ft 2.33 ft
Velocity: 3.36 fps
X-Section Area: 0.16 scl ft
Hydraulic Radius: 0.127 ft
Froude Number: 1.57
Structure #45 (Erodible Channel)
DSL Y-19
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Depth (ft) % of Mult. x
Depth Velocity
(fps)
(VxD)
Ratio Ratio
1.0:1 3.0:1 9.1 0.0300 0.30 5.5
E
Erodible Channel Results:
Filename: SG-1.sc4 Printed 10-28-2008