2008-12-11_PERMIT FILE - C1980007 ‎(4)‎

• Permit No: C1980007
• 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-5
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
r'-...;. k++ooa _9nn70-1d i
•
8
Structure Detail:
Structure #4 (Erodible Chann
D5-Z
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 1.5 0.0300 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 0.11 cfs
Depth: 0.21 ft 0.51 ft
Top Width: 0.83 ft 2.03 ft
Velocity: 1.24 fps
X-Section Area: 0.09 sq ft
Hydraulic Radius: 0.093 ft
Froude Number: 0.68
Structure #6 (Erodible Channel
D5-4
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 5.0 0.0300 0.30 5.5
Erodible Channel Results:

w/o Freeboard w/ Freeboard
Design Discharge: 0.55 cfs
Depth: 0.31 ft 0.61 ft
Top Width: 1.22 ft 2.42 ft
Velocity: 2.95 fps
X-Section Area: 0.19 sq ft
Hydraulic Radius: 0.137 ft
Froude Number: 1.33
Filename: MB-5.sc4 Printed 10-21-2008