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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Left Right
Bottom
Freeboard freeboard Freeboard
Sideslope Sideslope Slope ( %)
Ratio Ratio
Depth (ft) % of Depth Mutt. x
p ( (VxD)
5.00 2.0:1 2.0:1 4.4
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure x`13 (Riprap Channel)
RD2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
884.56 cis
Depth:
4.74 it 5.04 ft
Top Width:
23.94 ft 25.14 ft
Velocity:
12.91 fps
X- Section Area:
68.54 sq ft
Hydraulic Radius:
2.618 ft
Froude Number:
1.34
Manning's n:
0.0460
Dmin:
7.00 In
D50:
12.00 in
Dmax:
18.00 in
Structure x`13 (Riprap Channel)
RD2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Width Ratio Ratio
Depth (ft) % of Depth
(VxD)
5.00 2.0:1 2.0.1 3.6
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
7
38
Filename: 100- year_Collom_Ponds (With Riser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -156 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
987.89 cis
Depth:
5.21 ft 5.51 ft
Top Width:
25.82 It 27.02 It
Velocity:
12.32 fps
X- Section Area:
80.22 sq ft
Hydraulic Radius:
2.837 ft
Froude Number:
1.23
38
Filename: 100- year_Collom_Ponds (With Riser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -156 Revision Date: 12/15/10
Revision No.: PR -03