2008-12-11_PERMIT FILE - C1980007A ‎(22)‎

• 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 Pond MB-2R
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
76
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Structure #46 (Cu/vert?
C2-12
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
131.00 11.45 0.0240 4.50 0.00 0.90
w/o Freeboard w/ Freeboard
Design Discharge: 1.77 cfs
Depth: 0.32 ft 0.62 ft
Top Width: 1.26 ft 2.46 ft
Velocity: 8.90 fps
X-Section Area: 0.20 sq ft
Hydraulic Radius: 0.141 ft
Froude Number: 3.94
Design Discharge = 1.88 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
Structure #45 (Nonerod/ble Channel)
D2-3B
Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Manning's n Mult. x
Ratio Ratio Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 11.0 0.0170 0.30
Nonerodible Channel-Results:

w/o Freeboard w/ Freeboard
Design Discharge: 0.24 cfs
Depth: 0.16 ft 0.46 ft
Top Width: 0.64 ft 1.84 ft
Velocity: 5.03 fps
X-Section' Area: 0.05 sq ft_
Hydraulic Radius: 0.072 qo j$M?
?-
Froude Number: 3.12
Structure #44 (Nonerodible Channel)

I" C_ -
Filename: MB-2R.sc4 Printed 10-23-2008