2008-12-11_PERMIT FILE - C1980007A ‎(19)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 100 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-1
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
C nnvrinht 10CIA -9nn7 P-1. I R,K--K
29
Design Discharge = 1.01 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
Structure #29 (Erodible Channel)
D1-5A
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) % of
Depth (VxD) (fps)
2.0:1 2.0:1 12.0 0.0300 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 2.13 cfs
Depth: 0.43 ft 0.73 ft
Top Width: 1.72 ft 2.92 ft
Velocity: 5.73 fps
X-Section Area: 0.37 sq ft
Hydraulic Radius: 0.192 ft
Froude Number: 2.18
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater (ft) Loss Coef.
(ft) (Ke)
36.00 5.00 0.0120 1.75 0.00 0.91
Structure #28 (Cu/vent)
C1-9A
Culvert Inputs:
Culvert Results:
Design Discharge = 2.13 cfs
Minimum pipe diameter: 1 - 10 inch pipe(s) required
Structure #27 6 onerodible Channe/)
DI -5AA
Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Filename: MB-1.sc4 Printed 10-22-2008