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 #6 fflorap Channel)
East Segment 2
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %)
Mult. x
Ratio Ratio
Depth (ft) % of Depth (VxD)
4.6:1 3.5:1 3.5
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #5 (Erodible Channel)
East Segment 3
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
9.54 cfs
Depth:
0.73 ft 1.03 ft
Top Width:
5.96 ft 8.41 ft
Velocity:
4.37 fps
X- Section Area:
2.18 sq ft
Hydraulic Radius:
0.355 ft
Froude Number:
1.27
Manning's n:
0.0320
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #5 (Erodible Channel)
East Segment 3
Triangular Erodible Channel Inputs:
Material: Shales and hardpans
Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope ( %) Manning's n
Mult. x
Velocity
Ratio Ratio
Depth (ft) % of Depth (VxD)
(fps)
3.4:1 3.1:1 1.3 0.0250
0.30
6.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 11.35 cfs
Depth: 0.93 ft 1.23 ft
Top Width: 6.12 ft 8.08 ft
Filename: Pond NHN -001 East Ditches Reevaluation 280CT14.sc4
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Printed 10 -30 -2014