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
1000 _.)nn7 o -1 i Z,k- K
•
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
76.00 5.00 0.0240 3.75 0.00 0.90
Design Discharge = 2.95 cfs
Minimum pipe diameter: 1 - 10 inch pipe(s) required
(Culvert1
Structure #32
CSL Y-2B
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
48.00 5.00 0.0120 3.00 0.00 0.90
Design Discharge = 327.01 cfs
Minimum pipe diameter: 1 - 0 inch pipe(s) required
Structure #31 (Erodible Channe/)
DSL Y-20
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 10.3 0.03001 0.30 5.5
Culvert Results:
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 5.51 cfs
Depth: 0.63 ft 0.93 ft
Top Width: 2.53 ft 3.73 ft
Velocity: 6.87 fps
X-Section Area: 0.80 sq ft
Hydraulic Radius: 0.283 ft
Froude Number: 2.15
Structure #30 (Cu/vent)
57
Filename: SG-1.sc4 Printed 10-28-2008