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

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Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sidesiope Slope (%) Manning's n Mult. X Velocity
Ratio Ratio Depth (ft) % of Depth (VxD) (fps)
1.0:1 3.0:1 11.3 0.03001 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 7.36 cfs
Depth: 0.69 ft 0.99 ft
Top Width: 2.77 ft 3.97 ft
Velocity: 7.65 fps
X-Section Area: 0.96 sq ft
Hydraulic Radius: 0.310 ft
Froude Number: 2.29
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Structure #75 (Cu/vent)
CSL Y-Z1
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
28.00 5.00 0.0240 3.00 0.00 0.9(
Design Discharge = 7.36 cfs
Minimum pipe diameter: 1 - 15 inch pipe(s) required
Structure #74 (Erodible Channel)
DSL Y-16
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right Freeboard Freeboard Freeboard Limiting
°
Bottom
Sideslope Sideslope Slope (/o) Manning's n Mult. X Velocity
Width (ft)
Ratio Ratio Depth (ft)
% of Depth (VxD) (fps)
10.00 2.0:1 2.0:1 5.0 0.0350 0.30 5.5
Erodible Channel Results:
•
w/o Freeboard w/ Freeboard
Design Discharge: 18.45 cfs
Depth: 0.37 ft 0.67 ft
Top Width: 11.48 ft 12.68 ft
Filename: SG-1.sc4 Printed 10-28-2008