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
100a anm remain 1 Crh..h
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 9.8
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
C]
Structure #24 (Culvertl
C2
Culvert Inputs:
Max. Entrance
Tallwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 33.09 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #23 (Riprap C17anne/1
D13
32
Triangular Riprap Channel Inputs:
• Material: Riprap
Filename: 100 - year,- Collom_Ponds (With Riser)=4 Printed 01 -22 -2009
Exh. 7 -23A -150 Revision Date: 12/15/10
Revision No.: PR -03
w/o freeboard w/ Freeboard
Design Discharge:
21.90 cfs
Depth:
1.27 ft 1.57 ft
Top Width:
5.07 ft 6.27 ft
Velocity:
6.80 fps
X- Section Area:
3.22 sq ft
Hydraulic Radius:
0.567 ft
Froude Number:
1.50
Manning's n:
0.0470
Dmin:
3.00 in
D50:
6.00 In
Dmax:
9.00 In
Structure #24 (Culvertl
C2
Culvert Inputs:
Max. Entrance
Tallwater
Length (ft) Slope ( %) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
50.00 5.00 0.0240 5.00 0.00 0.90
Culvert Results:
Design Discharge = 33.09 cfs
Minimum pipe diameter: 1 - 30 inch pipe(s) required
Structure #23 (Riprap C17anne/1
D13
32
Triangular Riprap Channel Inputs:
• Material: Riprap
Filename: 100 - year,- Collom_Ponds (With Riser)=4 Printed 01 -22 -2009
Exh. 7 -23A -150 Revision Date: 12/15/10
Revision No.: PR -03