2018-07-02_PERMIT FILE - C2010089A ‎(2)‎

• Permit No: C2010089A
• IBM Index Class Name: Permit File
• Doc Date: 7/2/2018
• Doc Name: Pond NHN-002 & Ditch Designs
• Section_Exhibit Name: Appendix 2.05.3‎(4)‎-9
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure #4 (Erodible Channel)
North Ditch (20+80 to 30+30)
Trapezoidal Erodible Channel Inputs:
Material: Excavated overburden (sandstone)
Bottom Left Right
w/o Freeboard w/ Freeboard
Froude Number:
1.41
Manning's n:
0.0440
Dmin:
1.00 in
D50:
1.50 in
Dmax:
3.00 in
Structure #4 (Erodible Channel)
North Ditch (20+80 to 30+30)
Trapezoidal Erodible Channel Inputs:
Material: Excavated overburden (sandstone)
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Manning's n
Depth:
Velocity (fps)
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
Velocity:
12.00 2.0:1 2.0:1 4.0 0.0350
1.00
5.0
Erodible Channel Results:
Structure #1 (Cu/vert)
Pit Pumping
Culvert Inputs:
Max. Entrance
Length (ft) Slope (%) Manning's n Headwater Tailwater (ft) Loss Coef.
(ft) (Ke)
1,000.00 2.00 0.0140 1.00 0.00 0.9c
Culvert Results:
Design Discharge = 2.00 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #2 (Pon
Pond NHN-002
6
Filename: Pond NHN-002 DESIGN 10YR EVENT_05.10.18.sc4 Printed 05-10-2018
Appendix 2.05.3(4)-9 Page 11 March 2018 JR -16)
w/o Freeboard w/ Freeboard
Design Discharge:
4.92 cfs
Depth:
0.16 ft 1.16 ft
Top Width:
12.65 ft 16.65 ft
Velocity:
2.47 fps
X -Section Area:
1.99 sq ft
Hydraulic Radius:
0.156 ft
Froude Number:
1.10
Structure #1 (Cu/vert)
Pit Pumping
Culvert Inputs:
Max. Entrance
Length (ft) Slope (%) Manning's n Headwater Tailwater (ft) Loss Coef.
(ft) (Ke)
1,000.00 2.00 0.0140 1.00 0.00 0.9c
Culvert Results:
Design Discharge = 2.00 cfs
Minimum pipe diameter: 1 - 12 inch pipe(s) required
Structure #2 (Pon
Pond NHN-002
6
Filename: Pond NHN-002 DESIGN 10YR EVENT_05.10.18.sc4 Printed 05-10-2018
Appendix 2.05.3(4)-9 Page 11 March 2018 JR -16)