2010-11-19_PERMIT FILE - C1980007 ‎(28)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 11/19/2010
• Doc Name: 100 yr - 24 hr ‎(DCW-1A, -1B -5, CCW-5, DCW-6, -7, -9, -10)‎
• Section_Exhibit Name: Exhibit 66 Clean Water
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
W
Structure #7 01 rao Channel)
• DCW -13
Trapezoidal Riprap Channel Inputs:
Material: Ripral2
Left Right
Freeboard Freeboard Freeboard
Bottom Sideslope Sideslope Slope ( %)
Mult. x
Width (ft) Ratio Ratio
D epth (ft) % of Depth (VxD)
3.00 1.5:1 1.5:1 36.0
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
•
Structure #19 (Erodible Channel)
DSL Y -1 D
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
8.29 cfs
Depth:
0.36 ft 0.66 ft
Top Width:
4.08 ft 4.98 ft
Velocity:
6.51 fps
X- Section Area:
1.27 sq ft
Hydraulic Radius:
0.296 ft
Froude Number:
2.05
Manning's n:
0.0610
Dmin:
3.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #19 (Erodible Channel)
DSL Y -1 D
Triangular Erodible Channel Inputs:
Material: Graded silts to cobbles when colloidal
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
D Mult. x
epth (ft) % of Depth
Velocity
(fps)
Ratio Ratio
(VxD)
Velocity:
1.5:1 1.5:1 8.5 0.0300
0.30
4.0
Erodible Channel Results:
•
Filename: DCW10,11,12 CCW10.sc4
Printed 10 -07 -2010
w/o Freeboard w/ Freeboard
Design Discharge:
3.91 cfs
Depth:
0.66 ft 0.96 ft
Top Width:
1.97 ft 2.87 ft
Velocity:
6.07 fps
Filename: DCW10,11,12 CCW10.sc4
Printed 10 -07 -2010