2010-11-19_PERMIT FILE - C1980007 ‎(33)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 100 yr - 24 hr
• Section_Exhibit Name: Exhibit 66 RPE Pond
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Trapezoidal Riprap Channel Inputs:
Material: Riprap
Left Right Freeboard Freeboard Freeboard
Width
Bott
w/o Freeboard w/ Freeboard
(ft) Sideslope Sideslope Slope ( %)
Depth (ft) % of Depth Mult. x
Ratio Ratio
(VxD)
5.00 1.5:1 1.5:1 20.0
0.50
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #7 (Erodible Channel)
R ' A
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
77.50 cfs
Depth:
1.13 ft 1.63 ft
Top Width:
8.40 ft 9.90 ft
Velocity:
10.20 fps
X- Section Area:
7.60 sq ft
Hydraulic Radius:
0.836 ft
Froude Number:
1.89
Manning's n:
0.0580
Dmin:
5.00 in
D50:
9.00 in
Dmax:
12.00 in
Structure #7 (Erodible Channel)
R ' A
Triangular Erodible Channel Inputs:
Material: Cobbles and shingles
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
2.0:1 2.0:1 3.0 0.0350
0.30
5.5
Erodible Channel Results:
•
46
Filename: RPE Pile.sc4
Printed 10 -07 -2010
0
w/o Freeboard w/ Freeboard
Design Discharge:
7.33 cfs
Depth:
0.94 ft 1.24 ft
Top Width:
3.76 ft 4.96 ft
Velocity:
4.14 fps
X- Section Area:
1.77 sq ft
Hydraulic Radius:
0.421 ft
46
Filename: RPE Pile.sc4
Printed 10 -07 -2010
0