2008-12-11_PERMIT FILE - C1980007A ‎(21)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 10 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-2R
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
81
•
w/o Freeboard w/ Freeboard
Design Discharge: 4.39 cfs
Depth: 0.50 ft 0.80 ft
Top Width: 2.02 ft 3.22 ft
Velocity: 8.60 fps
X-Section Area: 0.51 sq ft
Hydraulic Radius: 0.226 ft
Froude Number: 3.02
Structure #34 (Nonerodible Channell
D2-2C
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 2.0 0.0170 0.30
Nonerodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 4.39 cfs
Depth: 0.64 ft 0.94 ft
Top Width: 2.56 ft 3.76 ft
Velocity: 5.38 fps
X-Section Area: 0.82 sq ft
Hydraulic Radius: 0.286 ft
Froude Number: 1.68
Structure #33 LCulvert)
C2-4
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
364.00 10.99 0.0240 3.00 0.00 0.9(
Design Discharge = 5.88 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
• Structure #32 (Nonerodib/e Channe/)
Filename: MB-2R.sc4 Printed 10-23-2008