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

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SEDCAD 4 for Windows
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Structure #30 (Riprap Channe /1
D15
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
w/o Freeboard w/ Freeboard
Velocity:
0.30 fps
X Section Area:
0.00 sq ft
Hydraulic Radius:
0.004 ft
Froude Number:
0.75
Structure #30 (Riprap Channe /1
D15
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sidestope Slope (%)
Width (ft)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 6.0
0.30
• Riprap Channel Results;
PADER Method -Steep Slope Design
Structure #29 (B/ "rap Channel)
D3
Trapezoidal Riprap Channel Inputs:
Material: Riprap
•
Filename: 100 -year Collom_Ponds (With Rlser).so4
29
Printed 01 -22 -2009
Exh. 7 -23A -147 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
125.71 cis
Depth:
1.17 ft 1.47 ft
Top Width:
16.69 ft 17.89 ft
Velocity:
7.48 fps
X- Section Area:
16.81 sq ft
Hydraulic Radius:
0.975 ft
Froude Number:
1.31
Manning's n:
0.0480
Dmin:
3.00 in
D50:
6.00 In
Dmax:
9.00 in
Structure #29 (B/ "rap Channel)
D3
Trapezoidal Riprap Channel Inputs:
Material: Riprap
•
Filename: 100 -year Collom_Ponds (With Rlser).so4
29
Printed 01 -22 -2009
Exh. 7 -23A -147 Revision Date: 12/15/10
Revision No.: PR -03