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 #41 6% rap Channell
D2
•
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Depth:
3.37 ft 3.67 ft
Top Width:
18.50 ft 19.70 ft
Velocity:
10.02 fps
X- Sectlon Area:
39.66 sq ft
Hydraulic Radius:
1.974 ft
Froude Number:
1.21
Manning's n:
0.0450
Dmin:
5.00 In
D50:
9.00 in
Dmax:
12.00 in
Structure #41 6% rap Channell
D2
•
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (° /a)
Width (ft) Ratio Ratio
Mult. x
Depth (ft) % of Depth (VxD)
12.00 2.0:1 2.0:1 6.7
0.30
Riprap Channel Results:
23
PADER Method - Steep Slope Design
Structure #40 a rap Channel)
DI
Filename: 100 -year Coliom_Ponds (With Rlser).so4 Printed 01 -22 -2008
Exh. 7 -23A -141 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
44.85 cfs
Depth:
0.58 ft 0.88 ft
Top Width:
14.33 ft 15.53 ft
Velocity:
5.84 fps
X- Section Area:
7.68 sq ft
Hydraulic Radius:
0.526 ft
Froude Number:
1.41
Manning's n:
0.0430
Dmin:
2.00 in
D50:
3.00 In
Dmax:
4.50 in
Structure #40 a rap Channel)
DI
Filename: 100 -year Coliom_Ponds (With Rlser).so4 Printed 01 -22 -2008
Exh. 7 -23A -141 Revision Date: 12/15/10
Revision No.: PR -03