2010-12-17_REVISION - C1981019 ‎(122)‎

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

SEDCAD 4 for Windows
r..,...d..h# tooa -onm oa ... 1. 1 orr.... h
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth
(VxD)
(fps)
2.0:1 2.0:1 8.9 0.0350
0.30
5.5
Erodible Channel Results:
•
Structure #18 (Erodible Channell
D12
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
2.17 cfs
Depth:
0.49 ft 0.79 ft
Top Width:
1.94 ft 3.14 ft
Velocity:
4.59 fps
X- Section Area:
0.47 sq ft
Hydraulic Radius:
0.217 ft
Froude Number:
1.64
•
Structure #18 (Erodible Channell
D12
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
L(miting
Sideslope Sldeslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
{fps)
2.0:1 2.0:1 0.9 0.0350
0.30
5.5
Erodible Channel Results:
L�
Structure #17 (Culvert
CI
Culvert Inputs:
33
Filename: 10 -year Collom_Pond (With Rlser).so4
Exh. 7- 23A -37
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
67.90 cfs
Depth:
2.72 ft 3.02 ft
Top Width:
10.87 ft 12.07 ft
Velocity:
4.60 fps
X- Section Area:
14.76 sq ft
Hydraulic Radius:
1.215 ft
Froude Number:
0.70
L�
Structure #17 (Culvert
CI
Culvert Inputs:
33
Filename: 10 -year Collom_Pond (With Rlser).so4
Exh. 7- 23A -37
Printed 01 -22 -2009
Revision Date: 12/15/10
Revision No.: PR -03