PERMFILE66295

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 9/27/2007
• Doc Name: YPM-9 to YPM-21
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13.12.3 Part 2
• Media Type: D
• Archive: Yes

SEDCAD 4.0
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• Yoe§t: YPM-10 - 10% Slope
Material: Grass mixture
Triangular Channel
Left Right
Retardance Freeboard Freeboard Freeboard Limiting
Sideslope Sideslope Slope (%)
Classes
R
i Mult. x
Depth (ft) % of Depth Velocity
(fPs)
at
o
Ratio (VxD)
3.0:1 3.0:1 10.0 - D, B 0.30 4.0
~, Stability
Class D w/o
Freeboard Stability
Class D w/
Freeboard Capacity
Class B w/o
Freeboard Capacity
Class B w/
Freeboard
Design Discharge: 2.98 cfs 2.98'cfs
Depth: 0.56 ft 0.86 ft 0.89 ft 1.19 ft
Top Width: 3.36 ft 5.16 ft 5.34 ft 7.14 ft
Velocity: 3.17 fps 1.25 fps
X-Section Area: 0.94 sq ft 2.38 sq ft
Hydraulic Radius: 0.266 0.422
Froude Number: 1.05 0.33
Roughness Coefficient: 0.0615 0.2113

SEDCAD Ult~ty~n 13-12.3-127 Revised B87t6~i 06-15-2007