2008-12-11_PERMIT FILE - C1980007A ‎(21)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2008
• Doc Name: 10 Year, 24 Hour Surface Water Control Plan
• Section_Exhibit Name: Exhibit 66 Pond MB-2R
• Media Type: D
• Archive: Yes

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68
DZ-6
40 Triangular Nonerodible Channel Inputs:
Material: Shotcrete
Left Right Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Manning's n Mult. x
Ratio Ratio Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 10.0 0.0170 0.30
Nonerodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 19.21 cfs
Depth: 0.82 ft 1.12 ft
Top Width: 3.29 ft 4.49 ft
Velocity: 14.22 fps
X-Section Area: 1.35 sq ft
Hydraulic Radius: 0.368 ft
Froude Number: 3.91
Structure #67 (Erodible Channe/)
D2-6C
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
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 0.5 0.0300 0.30 5.5
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 1.58 cfs
Depth: 0.70 ft 1.00 ft
Top Width: 2.79 ft 3.99 ft
Velocity: 1.62 fps
X-Section Area: 0.97 sq ft
Hydraulic Radius: 0.312 ft
Froude Number: 0.48
Structure #66 (Cu/vert)
. CZ-3A
Filename: MB-2R.sc4 Printed 10-23-2008