2016-10-28_PERMIT FILE - C2010089A ‎(22)‎

• Permit No: C2010089A
• IBM Index Class Name: Permit File
• Doc Date: 10/28/2016
• Doc Name: Pond NHN-002 & NHN-002 DItch Designs
• Section_Exhibit Name: Appendix 2.05.3‎(4)‎-8
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Structure Detail;
Structure #7 (Erodible Channel)
South Ditch (0+00 to 7+75)
Trapezoidal Erodible Channel Inputs:
Material: Excavated overburden (sandstone)
Bottom Left Right
Freeboard Freeboard Freeboard
Limiting
Width (ft) Sideslope Sideslope Slope (%) Manning's n
Depth:
Velocity (fps)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
Velocity:
12.00 2.0:1 2.0:1 5.0 0.0350
1.00
5.0
Erodible Channel Results:
Structure #6 69rap Channel)
South Ditch (7+75 to I1+ 00)
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
9.04 cfs
Depth:
0.22 ft 1.22 ft
Top Width:
12.87 ft 16.87 ft
Velocity:
3.35 fps
X -Section Area:
2.70 sq ft
Hydraulic Radius:
0.208 ft
Froude Number:
1.29
Structure #6 69rap Channel)
South Ditch (7+75 to I1+ 00)
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope (%)
10.61 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 2.0:1 2.0:1 10.0
1.00
Riprap Channel Results:
PADER Method - Steep Slope Design
Filename: Pond NHN-002 DESIGN 10YR EVENT PRINCIPAL SPILLWAY OPEN.sc4 Printed 04-01-2016
w/o Freeboard w/ Freeboard
Design Discharge:
10.61 cfs
Depth:
0.21 ft 1.21 ft
Top Width:
12.85 ft 16.85 ft
Velocity:
4.00 fps
X -Section Area:
2.66 sq ft
Hydraulic Radius:
0.205 ft
Filename: Pond NHN-002 DESIGN 10YR EVENT PRINCIPAL SPILLWAY OPEN.sc4 Printed 04-01-2016