2009-09-21_PERMIT FILE - C1980007A ‎(8)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/21/2009
• Doc Name: 25-Year Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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•
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)
2.0:1 2.0:1 2.0 0.0300 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 3.73 cfs
Depth: 0.74 ft 1.04 ft
Top Width: 2.98 ft 4.18 ft
Velocity: 3.37 fps
X-Section Area: 1.11 sq ft
Hydraulic Radius: 0.333 ft
Froude Number: 0.97
u
Structure #3 (Culvert)
C3-1
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
52.00 5.00 0.0240 3.00 0.00 0.90
Culvert Results:
Design Discharge = 14.65 cfs
Minimum pipe diameter: 1 - 21 inch pipe(s) required
Structure #2 (Culvert)
C3-1B
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
53.00 5.00 0.0120 1.50 0.00 0.90
Design Discharge = 0.12 cfs
Minimum pipe diameter: 1 - 4 inch pipe(s) required
Structure #1 (Pond)
• MB-3
22
Filename: MB-3(Rev_spillway).sc4 Printed 08-11-2009