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
rnn-dnhl 1a°A.9nn7 P-1- 1 Rlh- -h
37
w/o Freeboard w/ Freeboard
Dmin: 5.00 to
D50: 9.00 in
Dmax: 12.00 in
Structure #15 (Ripran Channel)
RD6
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
WBottom Sideslope Sideslope Slope ( %)
Depth (ft) % of Depth Mult. x
(VxD)
Ratio Ratio
2.55 ft 2.85 ft
5.00 2.0:1 2.0:1 7.9
0.30
is
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #14 6Riorap Channel)
RX
Trapezoidal Riprap Channel Inputs:
Material: Riprap
7
Filename: 100- year_Collom_Ponds (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -155 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
297.58 cfs
Depth:
2.55 ft 2.85 ft
Top Width:
15.20 ft 16.40 ft
Velocity:
11.55 fps
X- Section Area:
25.77 sq ft
Hydraulic Radius:
1.571 ft
Froude Number:
1.56
Manning's n:
0.0490
Dmin:
7.00 In
D50:
12.00 in
Dmax:
18.00 in
Structure #14 6Riorap Channel)
RX
Trapezoidal Riprap Channel Inputs:
Material: Riprap
7
Filename: 100- year_Collom_Ponds (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -155 Revision Date: 12/15/10
Revision No.: PR -03