2008-12-11_PERMIT FILE - C1980007A ‎(33)‎

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

SEDCAD 4 for Windows
loop _,)nn7 o-i? i c,k...eK
45
DSG-1
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Bottom Left Right Freeboard Freeboard Freeboard Limiting
Width (ft) Sideslope Sideslope Slope (%) Manning's n o
Mult. x Velocity
Ratio Ratio Depth (ft) /o
of
Depth (VxD) (fps)
2.00 2.0:1 2.0:1 4.0 0.0350 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 21.47 cfs
Depth: 0.93 ft 1.23 ft
Top Width: 5.73 ft 6.93 ft
Velocity: 5.95 fps
X-Section Area: 3.61 sq ft
Hydraulic Radius: 0.584 ft
Froude Number: 1.32
Structure #59 (Erodible Chann
10 DSL Y-13
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 7.3 0.0300 I 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 1.27 cfs
Depth: 0.39 ft 0.69 ft
Top Width: 1.56 ft 2.76 ft
Velocity: 4.18 fps
X-Section Area: 0.31 sq ft
Hydraulic Radius: 0.175 ft
Froude Number: 1.67
Structure #58 (Cu/vert1
CSG-1
Filename: SG-1.sc4 Printed 10-28-2008