2008-12-11_PERMIT FILE - C1980007A ‎(32)‎

• 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 SG-1 Pond
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
63
Trapezoidal Erodible Channel Inputs:
• Material: Graded silts to cobbles when colloidal
Left Right
Bottom Freeboard Freeboard Freeboard Limiting
Sideslo e Sideslo e Sloe (%) Manning's n
p p p Velocity
Mult. x
Width (ft)
Ratio Ratio Depth (ft) % of Depth
(VxD) (fps)
1.00 1.0:1 1.0:1 7.7 0.03001 0.30 I 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.07 cfs
Depth: 0.04 ft 0.34 ft
Top Width: 1.07 ft 1.67 ft
Velocity: 1.48 fps
X-Section Area: 0.04 sq ft
Hydraulic Radius: 0.035 ft
Froude Number: 1.37
Structure #7 &odible Channel)
DSL Y-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)
1.0:1 3.0:1 8.1 0.03001 0.30 1 5.!
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 1.11 cfs
Depth: 0.36 ft 0.66 ft
Top Width: 1.45 ft 2.65 ft
Velocity: 4.20 fps
X-Section Area: 0.26 sq ft
Hydraulic Radius: 0.162 ft
Froude Number: 1.74
Structure #6 (Culvert)
CSL Y-3
0 Culvert Inputs:
Filename: SG-1.sc4 Printed 10-28-2008