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
rnnvrinM 1008 ?nn7 Demme 1 Q ,K...eh
C2-2A
Culvert Inputs:
Culvert Results:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
205.00 3.00 0.0120 1.00 0.00 0.9(
Design Discharge = 0.85 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
Structure #55 (Erodible Channel)
D2-3J
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
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 35.0 0.0600 0.30 5.5
C7
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.85 cfs
Depth: 0.32 ft 0.62 ft
Top Width: 1.30 ft 2.50 ft
Velocity: 4.06 fps
X-Section Area: 0.21 sq ft
Hydraulic Radius: 0.145 ft
Froude Number: 1.77
Structure #54 (Erodible Channe/)
D2-4B
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Depth (ft) % of Mult. x
Depth Velocity
(fps)
Ratio Ratio (VxD)
2.0:1 2.0:1 7.0 0.0300 0.30 5.5
i Erodible Channel Results:
72
Filename: MB-2R.sc4 Printed 10-23-2008