2011-06-29_PERMIT FILE - C1981019A ‎(22)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 6/29/2011
• Doc Name: Permanent Channel Design
• Section_Exhibit Name: Exhibit 07 Item 20 Part E -ST
• Media Type: D
• Archive: Yes

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SEDCAD 4 for Windows
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Structure Detail;
Structure #5 (Vegetated Channel)
upprmost east west
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Left Right R �
°(ft)
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Classes
Width
o Mult. x
Depth (ft) /o of Depth
Velocity
(fps)
Ratio Ratio
(VxD)
33.78 cfs
12.00 3.0:1 3.0:1 1.3 D, B
1.00
7.0
Vegetated Channel Results:
Structure #6 6g rap Channel)
east west groin ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Stability
Class D w/o
Freeboard
Stability
Class D w/
Freeboard
Capacity
Class B w/o
Freeboard
Capacity
Class B w/
Freeboard
Design Discharge:
33.78 cfs
1.00
33.78 cfs
Depth:
0.83 ft
1.83 ft
1.38 ft
2.38 ft
Top Width:
16.98 ft
22.98 ft
20.26 ft
26.26 ft
Velocity:
2.81 fps
1.52 fps
X- Section Area:
12.03 sq ft
22.19 sq ft
Hydraulic Radius:
0.697 ft
1.072 ft
Froude Number:
0.59
0.26
Roughness Coefficient:
0.0475
0.1168
Structure #6 6g rap Channel)
east west groin ditch
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft)
Mult. x
) % of Depth
Depth (ft)
Ratio Ratio
(VxD)
12.00 3.0:1 3.0:1 25.0
1.00
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
±1
Filename: EastTaylor West Trib. Ditch 100 24.sc4 Printed 12 -27 -2010
Exh. 7- 20E -21 Revision Date: 12/31/10
Revision No.: TR -81