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
Cnn \LInF1 100A _9M7 Pomola 1 RrK—F%
31
Structure #27 (Erodible Channel)
D9
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Manning's n:
0.0470
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #27 (Erodible Channel)
D9
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) % of Depth (VxD)
(fps)
2.0:1 2.0:1 9.1 0.0350
0.30
5.5
•
Erodible Channel Results:
Structure #26 (Culvert)
C6
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 0.00 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
Structure #25 (R / "rap Chann %j
• D5
Filename: 100 -year Collom_Ponds (With Riser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -149 Revision Date: 12/15/10
Revision No.: PR -03
M
w/o Freeboard w/ Freeboard
Design Discharge:
0.00 cis
Depth:
0.01 ft 0.31 ft
Top Width:
0.04 R 1.24 ft
Velocity:
0.35 fps
X- Section Area:
0.00 sq ft
Hydraulic Radius:
0.004 ft
Froude Number:
0.87
Structure #26 (Culvert)
C6
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater ft Loss Coef.
(ft) () (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 0.00 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
Structure #25 (R / "rap Chann %j
• D5
Filename: 100 -year Collom_Ponds (With Riser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -149 Revision Date: 12/15/10
Revision No.: PR -03
M