2016-05-03_PERMIT FILE - C1981008 ‎(10)‎

• Permit No: C1981008
• IBM Index Class Name: Permit File
• Doc Date: 5/3/2016
• Doc Name: Pond 012 Postmining SEDCD Modeling
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-31
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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Simons/OSM Method - Mild Slope Design
Structure #2 (Riprap Channel
upper main channel
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
0.02 ds
Depth:
0.08 ft 0.75 ft
Top Width:
1.24 ft 3.25 ft
Velocity:
0.18 fps
X -Section Area:
0.09 sq ft
Hydraulic Radius:
0.070 ft
Froude Number:
0.11
Manning's n:
0.0350
Dmin:
2.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #2 (Riprap Channel
upper main channel
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft) Ratio Ratio
Mult. x
Depth (ft) % of Depth
Depth:
(VxD)
1.00 1.5:1 1.5:1 18.7
0.67
Riprap Channel Results:
Simons/OSM Method - Mild Slope Design
Structure #4 (Riprap Channel)
Filename: NH2 TR70 west channel.sc4 Printed 12-17-2015
Attachment 2.05.3(3)-31 Revision Date: 1/08/2016
PaLre 30 Revision No.: TR -70
w/o Freeboard w/ Freeboard
Design Discharge:
0.02 cfs
Depth:
0.08 ft 0.75 ft
Top Width:
1.25 ft 3.26 ft
Velocity:
0.17 fps
X -Section Area:
0.09 sq ft
Hydraulic Radius:
0.072 ft
Froude Number:
0.11
Manning's n:
0.0350
Dmin:
2.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #4 (Riprap Channel)
Filename: NH2 TR70 west channel.sc4 Printed 12-17-2015
Attachment 2.05.3(3)-31 Revision Date: 1/08/2016
PaLre 30 Revision No.: TR -70