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

•
Material: Riprap
Left Right
f=reeboard Freeboard Freeboard
Bottom Sideslope Sldeslope Slope ( %)
Width (ft)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
12.00 2.0:1 2.0:1 4.9
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure #39 6 rap Channell
D7
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sldeslope Sldeslope Slope { %)
Mult. x
Depth (ft) % of Depth
Ratio Ratio
(VxD)
2.0:1 2.0:1 3.1
0.30
Riprap Channel Results:
SEDCAD 4 for Windows
( ,-tw hf 4QQR .)M7 P-1. I q,h, -h
Trapezoidal Riprap Channel Inputs:
24
PADER Method - Steep Slope Design
•
w/o Freeboard w/ Freeboard
Design Discharge:
141.09 cfs
Depth:
1.30 ft 1.60 ft
Top Width:
17.18 ft 18.38 ft
Velocity:
7.46 fps
X- Section Area:
18.90 sq ft
Hydraulic Radius:
1.062 ft
Froude Number:
1.25
Manning's n:
0.0460
Dmin:
3.00 in
D50:
6,00 in
Dmax:
9.00 in
24
PADER Method - Steep Slope Design
•
Fllename: 100 -year Collom_Ponds (With Rlser).sc4
Printed 01 -22 -2009
Exh. 7 -23A -142 Revision Date: 12/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
91.46 cis
Depth:
2.56 ft 2.86 ft
Top Width:
10.23 ft 11.43 ft
Velocity:
7.00 fps
Fllename: 100 -year Collom_Ponds (With Rlser).sc4
Printed 01 -22 -2009
Exh. 7 -23A -142 Revision Date: 12/15/10
Revision No.: PR -03