2010-12-17_REVISION - C1981019 ‎(128)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 12/17/2010
• Doc Name: Exhibit 7 Item 23 Erosion and Sedimentation Part 2
• Type & Sequence: PR3
• Email Name: JRS
• Media Type: D
• Archive: No

•
SEDCAD 4 for Windows
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Structure # (Erodible Channel)
D11b
Triangular Erodible Channel Inputs:
Material' Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Top Width:
5.43 ft 6.63 ft
Velocity:
5.46 fps
X- Section Area:
3.69 sq ft
Hydraulic Radius:
0.607 ft
Froude Number:
117
Structure # (Erodible Channel)
D11b
Triangular Erodible Channel Inputs:
Material' Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
Ratio Ratio
(VxD)
Velocity:
2.0:1 2,0:1 8.9 0.0350
0.30
5.5
Erodible Channel Results:
Structure #18 (Erodible Channel)
D12
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
55.52 cfs
Depth:
1.64 ft 1.94 it
Top Width:
6.56 ft 7.76 ft
Velocity:
10.33 fps
X- Section Area:
5.38 sq ft
Hydraulic Radius:
0.733 ft
Froude Number:
2.01
Structure #18 (Erodible Channel)
D12
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
Ratio Ratio
(VxD)
2.0:1 2.0:1 0.9 0.0350
0.30
5.5
35
Erodible Channel Results:
1, w/o Freeboard w/ Freeboard
Design Discharge: 116.16 cfs
Filename: 100 year_Collom_Ponds (With Rlser).scA Printed 01 -22 -2009
Exh. 7 -23A -153 Revision Date: 12/15/10
Revision No.: PR -03