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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Structure Detail:
Structure #3LRiprap Channel
downstream finger
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft)
Mult. x
Ratio Ratio
Depth (ft) % of Depth
(VxD)
1.00 1.5:1 1.5:1 6.8
0.53
Riprap Channel Results:
Simons/OSM Method - Mild Slope Design
Structure #1 (Riprap Channel
upstream finger
Trapezoidal Riprap Channel Inputs:
Material: RipraQ
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
0.04 cfs
Depth:
0.22 ft 0.75 ft
Top Width:
1.65 ft 3.24 ft
Velocity:
0.12 fps
X -Section Area:
0.28 sq ft
Hydraulic Radius:
0.160 ft
Froude Number:
0.05
Manning's n:
0.0335
Dmin:
2.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #1 (Riprap Channel
upstream finger
Trapezoidal Riprap Channel Inputs:
Material: RipraQ
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope (%)
Width (ft)
Mult. x
Ratio Ratio
Depth (ft) % of Depth
(VxD)
1.00 1.5:1 1.5:1 19.0
0.67
Riprap Channel Results:
Filename: NH2 TR70 west channel.sc4 Printed 12-17-2015
Attachment 2.05.3(3)-31 Revision Date: 1/08/2016
Page 29 Revision No.: TR -70