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
60
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Depth (ft) of Mult. x Velocity
Ratio Ratio % Depth (VxD) I (fps)
1.0:1 3.0:1 12.2 0.03001 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.22 cfs
Depth: 0.18 ft 0.48 ft
Top Width: 0.74 ft 1.94 ft
Velocity: 3.28 fps
X-Section Area: 0.07 sq ft
Hydraulic Radius: 0.082 ft
Froude Number: 1.90
•
Structure #17 (Culvert)
CSL Y-29
Culvert Inputs:
Culvert Results:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
60.00 5.00 0.0240 2.25 0.00 0.90
Design Discharge = 0.22 cfs
Minimum pipe diameter: 1 - 4 inch pipe(s) required
Structure #16 [Erodible Channel)
DSL Y-5
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
Depth (ft) % of Depth
(fps)
Ratio Ratio (VxD)
1.0:1 3.0:1 9.1 0.0300 0.30 I 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 3.99 cfs
Depth: 0.57 ft 0.87 ft
Top Width: 2.30 ft 3.50 ft
Filename: SG-1.sc4 Printed 10-28-2008