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- 1004 -Onn7 0---1. I Mh. h
Left Right
Bottom
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Width (ft)
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
Ratio Ratio
(VxD)
Velocity:
12.00 2.0:1 2.0:1 6.0 0.0350
0.30
5.5
Erodible Channel Results:
0
Structure #20 (Erodible Channell
D11a
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
1.23 cis
Depth:
0.06 ft 0.36 ft
Top Width:
12.25 ft 13.45 ft
Velocity:
1.62 fps
X- Section Area:
0.75 sq ft
Hydraulic Radius:
0.061 ft
Froude Number:
1.15
0
Structure #20 (Erodible Channell
D11a
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope -Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth ft
p () % of Depth (VXD)
(fps)
2.0:1 2.0:1 3.2 0.0350
0.30
5.5
Erodible Channel Results:
Structure #19(Erodible Chann %�
D11b
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
•
Filename: i0 -year Collom_Pond (With Riser).sa4
Printed 01 -22 -2009
32
i
i
Exh. 7- 23A -36 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
0.71 cis
Depth:
0.39 ft 0.69 ft
Top Width:
1.54 ft 2.74 ft
Velocity:
2.36 fps
X- Section Area:
0.30 sq ft
Hydraulic Radius:
0.172 ft
Froude Number:
0.95
Structure #19(Erodible Chann %�
D11b
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
•
Filename: i0 -year Collom_Pond (With Riser).sa4
Printed 01 -22 -2009
32
i
i
Exh. 7- 23A -36 Revision Date: 12/15/10
Revision No.: PR -03