2014-11-13_PERMIT FILE - C2010089A ‎(2)‎

• Permit No: C2010089A
• IBM Index Class Name: Permit File
• Doc Date: 11/13/2014
• Doc Name: NHN-001 Ditches As-Built
• Section_Exhibit Name: Appendix 2.05.3‎(4)‎-7
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detail:
Structure #1 ( Riprap Channel)
West Segment 1
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
3.6:1 3.5:1 2.6
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #2 &Erodible Channel)
West Segment 2
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
4.98 cfs
Depth:
0.65 ft 0.95 ft
Top Width:
4.60 ft 6.73 ft
Velocity:
3.35 fps
X- Section Area:
1.49 sq ft
Hydraulic Radius:
0.311 ft
Froude Number:
1.04
Manning's n:
0.0330
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #2 &Erodible Channel)
West Segment 2
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
Freeboard Freeboard Freeboard
Limiting
Bottom Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
15.20 8.5:1 3.0:1 1.0 0.0250
0.30
6.0
Erodible Channel Results:
Filename: Pond NHN -001 West Ditches Reevaluation 30OCT14.sc4
Z2
5
Printed 10 -30 -2014