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
r--inM 1000 -onn7o.-i. i c K,.,.K
69
Culvert Inputs:
•
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
327.00 30.00 0.0120 1.50 0.00 0.90
Design Discharge = 2.09 cfs
Minimum pipe diameter: 1 - 10 inch pipe(s) required
Structure #65 (Culvert)
C2-3
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
61.00 5.00 0.0130 3.50 0.00 0.50
Design Discharge = 30.48 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
• Structure #64 (Nonerodib/e Channel)
D2-5
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: 1.64 cfs
Depth: 0.44 ft 0.74 ft
Top Width: 1.77 ft 2.97 ft
Velocity: 4.21 fps
X-Section Area: 0.39 sq ft
Hydraulic Radius: 0.198 ft
Froude Number: 1.58
• Structure #63 (Cu/vert)

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