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 #1 (Riprap Channel
upper finger
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope (%)
0.01 cfs
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
1.00 1.5:1 1.5:1 15.6
0.64
Riprap Channel Results:
Simons/OSM Method - Mild Slope Design
Structure #2 (Riprap Channel
main channel
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
0.01 cfs
Depth:
0.10 ft 0.74 ft
Top Width:
1.31 ft 3.23 ft
Velocity:
0.11 fps
X -Section Area:
0.12 sq ft
Hydraulic Radius:
0.087 ft
Froude Number:
0.06
Manning's n:
0.0349
Dmin:
2.00 in
D50:
6.00 in
Dmax:
9.00 in
Structure #2 (Riprap Channel
main channel
Trapezoidal Riprap Channel Inputs:
Material: Riprap
Bottom Left Right
Freeboard Freeboard Freeboard
Width (ft) Sideslope Sideslope Slope (%)
Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
1.00 1.5:1 1.5:1 21.5
0.68
Riprap Channel Results:
Simons/OSM Method - Mild Slope Design
w/o Freeboard w/ Freeboard
Design Discharge: 0.01 cfs
4''
Filename: NH2 TR70 center east channel ESI.sc4 Printed 12-17-2015
Attachment 2.05.3(3)-31 Revision Date: 1/08/2016
Paee 45 Revision No.: TR -70