2009-09-21_PERMIT FILE - C1980007A ‎(7)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/21/2009
• Doc Name: 10-Year Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-3
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
22
•
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: 1.71 cfs
Depth: 0.56 ft 0.86 ft
Top Width: 2.22 ft 3.42 ft
Velocity: 2.77 fps
X-Section Area: 0.62 sq ft
Hydraulic Radius: 0.248 ft
Froude Number: 0.93

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 = 6.70 cfs
Minimum pipe diameter: 1 - 15 inch pipe(s) required
Structure #Z [Culvert
1
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 = 0.06 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
Structure #1(Eon
d)
• MB-3
Filename: MB-3.sc4 Printed 08-11-2009