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

U
SEDCAD 4 for Windows
12
Structure #3 (Erodible Channel)
NC2 fed by reduced A38 and NO
Trapezoidal Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
Limiting
Bottom
Sideslope Sideslope Slope ( %) Manning's n
Width (ft)
Depth (ft) % of Depth Mult. x (VxD)
Velocity
(fps)
Ratio Ratio
5.21 ft 6.41 ft
Velocity:
5.00 2.0:1 2.0:1 3.7 0.0350
0.30
5.0
Erodible Channel Results:
•
Structure #41 (Riprap Channel)
D2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
w/o Freeboard w/ Freeboard
Design Discharge:
0.30 cfs
Depth:
0.05 ft 0.35 ft
Top Width:
5.21 ft 6.41 ft
Velocity:
1.13 fps
X- Section Area:
0.27 sq ft
Hydraulic Radius:
0.051 ft
Froude Number:
0.88
•
Structure #41 (Riprap Channel)
D2
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right
Bottom
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%) Width (ft)
Depth (ft) % of Depth Mult. x (VxD)
Ratio Ratio
0.20 ft 0.50 ft
12.00 2.0:1 2.0:1 6.7
0.30
Riprap Channel Results:
Simons /OSM Method - Steep Slope Design
Filename: Collom 1024 w east Divert 3 27.sc4 Printed 03 -27 -2011
Exh. 7- 23A -16 Revision Date: 03/25/11
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
18.66 cfs
Depth:
0.20 ft 0.50 ft
Top Width:
12.82 ft 14.02 ft
Velocity *:
X- Section Area:
2.54 sq ft
Hydraulic Radius:
0.197 ft
Froude Number*:
Manning's n *:
Dmin:
1.00 in
D50:
3.00 in
Filename: Collom 1024 w east Divert 3 27.sc4 Printed 03 -27 -2011
Exh. 7- 23A -16 Revision Date: 03/25/11
Revision No.: PR -03