2009-09-21_PERMIT FILE - C1980007A ‎(11)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 9/21/2009
• Doc Name: 100-Year Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-5E
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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•
w/o Freeboard w/ Freeboard
Velocity: 17.21 fps
X-Section Area: 2.39 sq ft
Hydraulic Radius: 0.489 ft
Froude Number: 4.10
Structure #67 (Erodible Channe/1
D2-6C
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)
°% o of Depth (VxD) (fps)
2.0:1 2.0:1 0.5 0.0300 0.30 5.5
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Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 2.75 cfs
Depth: 0.86 ft 1.16 ft
Top Width: 3.44 ft 4.64 ft
Velocity: 1.86 fps
X-Section Area: 1.48 sq ft
Hydraulic Radius: 0.385 ft
Froude Number: 0.50
Structure #65 (Culvert)
C2-3
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
61.00 5.00 0.0130 3.50 0.00 0.5c
Design Discharge = 43.95 cfs
Minimum pipe diameter: 1 - 42 inch pipe(s) required
Structure #64 (Nonerod/ble Channe/)
• 02-5
Triangular Nonerodible Channel Inputs:
65
Filename: MB-5E(Rev_spillway).sc4 Printed 08-11-2009