2012-08-03_PERMIT FILE - C1981012 ‎(2)‎

• Permit No: C1981012
• IBM Index Class Name: Permit File
• Doc Date: 8/3/2012
• Doc Name: West DWDA
• Section_Exhibit Name: Exhibit 19 ‎(22)‎ West DWDA ‎(DWDA #3)‎
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Structure Detail;
Structure #'14 (Riprap Channel)
Ditch D43
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)
3.00 1.5:1 1.5:1 6.2
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename: Catchment No.2 100 Year Event- DWDA3.sc4
Printed 04 -09 -2012
TR -65 EXH 19(22) -19 04/17/2012
w/o Freeboard
w/ Freeboard
Design Discharge:
Depth:
2.44 cfs
0.23 ft
0.53 ft
Top Width:
3.70 ft
4.60 ft
Velocity:
3.13 fps
X- Section Area:
0.78 sq ft
Hydraulic Radius:
Froude Number:
0.203 ft
1.20
Manning's n:
0.0410
Dmin:
1.00 in
D50:
1.50 in
No Riprap required
Dmax:
3.00 in
Filename: Catchment No.2 100 Year Event- DWDA3.sc4
Printed 04 -09 -2012
TR -65 EXH 19(22) -19 04/17/2012