2008-12-11_PERMIT FILE - C1980007A ‎(26)‎

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

SEDCAD 4 for Windows
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Structure Detail:
Structure #S (Erodible Channe/?
DNSSA-1
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)
2.5:1 2.5:1 2.5 0.0350 0.30 5.5
Erodible Channel Results:
0
w/o Freeboard w/ Freeboard
Design Discharge: 0.73 cfs
Depth: 0.37 ft 0.67 ft
Top Width: 1.87 ft 3.37 ft
Velocity: 2.10 fps
X-Section Area: 0.35 sq ft
Hydraulic Radius: 0.174 ft
Froude Number: 0.85
Structure #4 (Erodible Channel)
DNSSA-4
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)
2.5:1 2.5:1 2.5 0.0350 0.30 5.5
Erodible Channel Results:
E
w/o Freeboard w/ Freeboard
Design Discharge: 0.31 cfs
Depth: 0.27 ft 0.57 ft
Top Width: 1.36 ft 2.86 ft
Velocity: 1.69 fps
X-Section Area: 0.18 sq ft
Hydraulic Radius: 0.126 ft
Filename: NSSA.sc4 Printed 10-16-2008