2011-06-20_REVISION - C1981019 ‎(4)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 6/20/2011
• Doc Name: Revised 3/28/2011 Exhibit 7 Item 23
• Type & Sequence: PR3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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25
Design Discharge = 77.21 cfs
Minimum pipe diameter: 1 - 45 inch pipe(s) required
Structure #16 (Riprap Channel
NC4
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Width (ft) Ratio Ratio
Depth (ft)_ % of Depth Mult. x (VxD)
5.00 2.0:1 2.0:1 7.7
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #15 (Riprap Channel,
RD6
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
77.25 cfs
Depth:
1.26 ft 1.56 ft
Top Width:
10.04 ft 11.24 ft
Velocity:
8.15 fps
X- Section Area:
9.48 sq ft
Hydraulic Radius:
0.891 ft
Froude Number:
1.48
Manning's n:
0.0470
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #15 (Riprap Channel,
RD6
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope (%)
Ratio Ratio
Depth (ft) % of Depth Mult, x (VxD)
5.00 2.0:1 2.0:1 7.9
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 88.20 cfs
Filename: Collom 1024 w east Divert 3 27.sc4 Printed 03 -27 -2011
Exh. 7- 23A -29 Revision Date: 03/25/11
Revision No.: PR -03