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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36
{ w/o Freeboard w/ Freeboard
D50: 12.00 in
Dmax: 18.00 in
Structure #13 ft Channel)
RD2
Trapezoidal Riprap Channel Inputs:
Material: Riorap
Left Right
Freeboard Freeboard Freeboard
Width Bottom Sideslope Sideslope Slope (° /C)
Depth (ft) % of Depth Mutt. x
Ratio Ratio
(VxD)
5.00 2.0:1 2.0:1 3.6
0.30
Riprap Channel Results:
•
PADER Method - Steep Slope Design
Structure #12 6% rap Channel)
RD5
Trapezoidal Riprap Channel Inputs:
Material: Ripral2
Left Right
w/o freeboard w/ freeboard
Design Discharge:
756.23 cis
Depth:
4.62 ft 4.92 ft
Top Width:
23.47 ft 24.67 R
Velocity:
11.51 fps
X- Section Area:
65.71 sq ft
Hydraulic Radius:
2.562 ft
Froude Number:
1.21
Manning's n:
0.0460
Dmin:
7.00 In
D50:
12.00 in
Dmax:
18.00 In
Structure #12 6% rap Channel)
RD5
Trapezoidal Riprap Channel Inputs:
Material: Ripral2
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope (%)
Mutt. x
Width (ft) Ratio Ratio
Depth (ft) % of Depth (VxD)
5.00 2.0:1 2.0:1 8.2
0.30
to 4• Riprap Channel Results
Filename: 25 -year Collom Ponds (Without Riser).604 Printed 01 -20 -2009
Exh. 7- 23A -97 Revision Date: 12/15/10
Revision No.: PR -03
0