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
Cnnvrinh4 �OQA _9f11 f1 Pomnh I Crhwah
Structure Detail;
Structure #1 (R/,Wrap Channel)
West Ditch - Segment 1
Triangular Riprap Channel Inputs:
Material: Riprap
Left Right ;Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)Depth (ft) % of Depth Mult. x (VxD)
Ratio Ratio
3.6:1 3.5:1 2.6 0.30
Riprap Channel Results:
PADER Method - Steep Slope Design
Structure #2Ple Channel)
West Ditch - Segment 2
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Left Right Freeboard
Width Sideslope Sideslope Slope (%) Manning's n Depth (ft)
Ratio Ratio
15.20 8.5:1 3.0:1 1.0 0.0250 0.30
5
Freeboard Freeboard Limiting
Velocity (fps)
of Depth Mult. x (VxD)
6.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 5.64 cfs
Filename: Pond NHN-001 West Ditch Evaluation_02.15.17.sc4
Appendix 2.05.3(4)-7 Page 23
Printed 02-15-2017
February 2017 JR -15)
w/o Freeboard w/ Freeboard
Design Discharge:
3.72 cfs
Depth:
0.58 ft 0.88 ft
Top Width:
4.12 ft 6.25 ft
Velocity:
3.11 fps
X -Section Area:
1.20 sq ft
Hydraulic Radius:
0.279 ft
Froude Number:
1.02
Manning's n:
0.0330
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #2Ple Channel)
West Ditch - Segment 2
Trapezoidal Erodible Channel Inputs:
Material: Shales and hardpans
Left Right Freeboard
Width Sideslope Sideslope Slope (%) Manning's n Depth (ft)
Ratio Ratio
15.20 8.5:1 3.0:1 1.0 0.0250 0.30
5
Freeboard Freeboard Limiting
Velocity (fps)
of Depth Mult. x (VxD)
6.0
Erodible Channel Results:
w/o Freeboard w/ Freeboard
Design Discharge: 5.64 cfs
Filename: Pond NHN-001 West Ditch Evaluation_02.15.17.sc4
Appendix 2.05.3(4)-7 Page 23
Printed 02-15-2017
February 2017 JR -15)