2016-05-03_PERMIT FILE - C1981008 ‎(9)‎

• Permit No: C1981008
• IBM Index Class Name: Permit File
• Doc Date: 5/3/2016
• Doc Name: Pond 009 Postmining SEDCAD Modeling
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-30
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Bottom Left Right Retardance
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Classes
Width (ft) Ratio Ratio
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
0.04 cfs
(VxD)
0.04 cfs
1.00 2.0:1 2.0:1 6.9 D, B
0.30
6.0
Vegetated Channel Results:
Structure #11 (Culvert
Culvert C142 -6 inch HDPE irrigation pipe
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
440.00 18.20 0.0140 1.00 0.00 0.90
Culvert Results:
Design Discharge = 0.07 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
Structure #12 (Culvert
Culvert C143- 4 inch HDPE irrigation pipe
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
260.00 17.30 0.0140 1.00 0.00 0.90
Design Discharge = 0.04 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
10
Filename: NH2 Pond 009 Postmine 1024 sedRev.sc4 Printed 03-12-2016
Attachment 2.05.3(3)-30 Revision Date: 3/14/16
Page 16 Revision No.: TR -70
Stability
Class D w/o
Freeboard
Stability
Class D w/
Freeboard
Capacity
Class B w/o
Freeboard
Capacity
Class B w/
Freeboard
Design Discharge:
0.04 cfs
0.04 cfs
Depth:
0.08 ft
0.38 ft
0.26 ft
0.56 ft
Top Width:
1.34 ft
2.54 ft
2.02 ft
3.22 ft
Velocity:
0.38 fps
0.10 fps
X -Section Area:
0.10 sq ft
0.39 sq ft
Hydraulic Radius:
0.072 ft
0.180 ft
Froude Number:
0.25
0.04
Roughness Coefficient:
0.1748
1.2626
Structure #11 (Culvert
Culvert C142 -6 inch HDPE irrigation pipe
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
440.00 18.20 0.0140 1.00 0.00 0.90
Culvert Results:
Design Discharge = 0.07 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
Structure #12 (Culvert
Culvert C143- 4 inch HDPE irrigation pipe
Culvert Inputs:
Culvert Results:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater Loss Coef.
(ft) (ft) (Ke)
260.00 17.30 0.0140 1.00 0.00 0.90
Design Discharge = 0.04 cfs
Minimum pipe diameter: 1 - 2 inch pipe(s) required
10
Filename: NH2 Pond 009 Postmine 1024 sedRev.sc4 Printed 03-12-2016
Attachment 2.05.3(3)-30 Revision Date: 3/14/16
Page 16 Revision No.: TR -70