2017-05-12_PERMIT FILE - C2010089 ‎(20)‎

• Permit No: C2010089
• IBM Index Class Name: Permit File
• Doc Date: 5/12/2017
• Doc Name: NHN-001 Ditches As-Built
• Section_Exhibit Name: Appendix 2.05.3‎(4)‎-7
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Rnnvrinht loop -9nlo P.mch I Ghui�h
Structure #3 69r,3 Channel)
West Ditch - Segment 3
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
w/o Freeboard w/ Freeboard
Depth:
0.19 ft 0.49 ft
Top Width:
17.34 ft 20.79 ft
Velocity:
1.86 fps
X -Section Area:
3.03 sq ft
Hydraulic Radius:
0.175 ft
Froude Number:
0.78
Structure #3 69r,3 Channel)
West Ditch - Segment 3
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Depth (ft) % of Depth Mult. x (VxD)
Ratio Ratio
0.57 ft 0.87 ft
3.9:1 3.9:1 6.5
0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
0
Filename: Pond NHN-001 West Ditch Evaluation_02.15.17.sc4 Printed 02-15-2017
Appendix 2.05.3(4)-7 Page 24 February 2017 (TR -15)
w/o Freeboard w/ Freeboard
Design Discharge:
5.79 cfs
Depth:
0.57 ft 0.87 ft
Top Width:
4.43 ft 6.77 ft
Velocity:
4.59 fps
X -Section Area:
1.26 sq ft
Hydraulic Radius:
0.275 ft
Froude Number:
1.52
Manning's n:
0.0350
Dmin:
2.00 in
D50:
3.00 in
Dmax:
4.50 in
0
Filename: Pond NHN-001 West Ditch Evaluation_02.15.17.sc4 Printed 02-15-2017
Appendix 2.05.3(4)-7 Page 24 February 2017 (TR -15)