2023-04-19_PERMIT FILE - C1981010 ‎(112)‎

• Permit No: C1981010
• IBM Index Class Name: Permit File
• Doc Date: 4/19/2023
• Doc Name: N-Pit Diversion 25-year, 24-Hour Event AMC II
• Section_Exhibit Name: Appendix Q Section XVII
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
(`nn—inhf 1QQA 9nin Pom Jl l Vrhuinh
6
w/o Freeboard w/Freeboard
Hydraulic Radius: 0.242 ft
Froude Number: 1.89
Structure #3(Erodible Channell
Segment 3
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Limiting
Bottom g Freeboard Freeboard 9
Sideslope Sideslope Slope(%) Manning's n Mult, x Velocity
Width(ft) Ratio Ratio Depth(ft) %of Depth (VxD) (fps)
25.00 2.0:1 2.0:1 7.1 0,0300 1.00 5.5
Erodible Channel Results:
w/o Freeboard w/Freeboard
Design Discharge: 36.84 cfs
Depth: 0.27 ft 1.27 ft
Top Width: 26.07 ft 30.07 ft
Velocity: 5.40 fps
X-Section Area: 6.83 sq ft
Hydraulic Radius: 0.261 ft
Froude Number: 1.86
Structure #4(Erodible Channel
Segment 4
Trapezoidal Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right Freeboard Limiting
Bottom g Freeboard Freeboard g
Sideslope Sideslope Slope(%) Manning s n Depth (ft) Mult,x Velocity
Width(ft) Ratio Ratio %of Depth (VxD) (fps)
28.00 2.0:1 2.0:1 7.9 0.0300 1.00 5.5
Erodible Channel Results:
w/o Freeboard w/Freeboard
Design Discharge: 39.09 cfs
Depth: 0.25 ft 1.25 ft
Filename: N-Pit Diversion Project-added another segment to refine riprap requirements-25.24-OSM.Simons.sc4 Printed 09-17-2020