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
r Mho 10OR .IrIA7 P-1. 1 R,h-.K
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
2.0:1 2.0:1 17.6
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure #22 ( RipraQ Channel)
.m
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
54.73 cfs
Depth:
1.66 ft 1.96 It
Top Width:
6.66 ft 7.86 It
Velocity:
9.87 fps
X- Sectlon Area:
5.54 sq ft
Hydraulic Radius:
0.744 ft
Froude Number:
1.91
Manning's n:
0.0520
Dmin:
5.00 in
D50:
9.00 In
Dmax:
12.00 in
Structure #22 ( RipraQ Channel)
.m
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Mult. x
Width (ft) Ratio Ratio
Depth (ft) % of Depth (VxD)
5.00 2.0:1 2.0:1 5.4
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
33
Filename: 100 -year_ Collom_Ponds (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -151 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
640.69 cis
Depth:
3.98 ft 4.28 It
Top Width:
20.91 ft 22.11 ft
Velocity:
12.43 fps
X- Sectlon Area:
51.55 sq It
Hydraulic Radius:
2.262 It
Froude Number:
1.40
33
Filename: 100 -year_ Collom_Ponds (With Rlser).sc4 Printed 01 -22 -2009
Exh. 7 -23A -151 Revision Date: 12/15/10
Revision No.: PR -03