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
1004 _' An7 Dom. 1. 1 C.,k. k
64
•
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
48.00 5.00 0.0240 3.75 0.00 0.91
Design Discharge = 1.16 cfs
Minimum pipe diameter: 1 - 8 inch pipe(s) required
Structure #3 LErodible Channe/)
DSL Y-18
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 5.0 0.03001 0.30 4.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 0.10 cfs
Depth: 0.15 ft 0.45 ft
Top Width: 0.62 ft 1.82 ft
Velocity: 1.87 fps
X-Section Area: 0.05 scl ft
Hydraulic Radius: 0.069 ft
Froude Number: 1.19
Structure #4 (Culvert)
CSL Y-2
Culvert Inputs:
Culvert Results:
Max. Entrance
Tailwater
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
67.00 5.00 0.0240 12.00 0.00 0.90
Design Discharge = 158.67 cfs
Minimum pipe diameter: 1 - 45 inch pipe(s) required
• Structure #S (Erodible Channe/)
DSL Y-IA
Filename: SG-i.sc4 Printed 10-28-2008