2008-12-11_PERMIT FILE - C1980007A ‎(31)‎

• 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 RPE Pond
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
11
Design Discharge = 26.43 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #4 LErodib/e Channel)
DRPE-1
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%) Manning's n Depth (ft) % of Mult. x
Depth Velocity
(fps)
Ratio Ratio (VxD)
2.0:1 2.0:1 9.0 0.0350 0.30 5.5
i
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 2.92 cfs
Depth: 0.54 ft 0.84 ft
Top Width: 2.17 ft 3.37 ft
Velocity: 4.97 fps
X-Section Area: 0.59 sq ft
Hydraulic Radius: 0.242 ft
Froude Number: 1.68
Structure #3 (Culvert)
CRPE-1
Culvert Inputs:
Tailwater Entrance
Length (ft) Slope (%) Manning's n He Max. adwater (ft) Loss Coef.
(ft) (Ke)
20.00 5.00 0.0240 1.50 0.00 0.9(
Culvert Results:

Design Discharge = 2.92 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #2 Ll onerodible Channel)
DRPE-2
Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Filename: RPE(expanded).sc4 Printed 10-23-2008