2012-06-28_PERMIT FILE - M2012032 ‎(21)‎

• Permit No: M2012032
• IBM Index Class Name: PERMIT FILE
• Doc Date: 6/28/2012
• Doc Name: Appendix 6 & 7
• Media Type: D
• Archive: No

Collection Ditch #2
Same as Collection Ditch #1
Collection Ditch #3
Channel Design
Project: Collection #3 By: B Langenfeld Date: 03/23/12
Location: Revenue Mine Checked: Date:
Channel Type: Triangular, Equal Side Slopes
1. Channel Geometric Properties
Dimensions Left Side Slope .... ............................... = 1.50:1
Right Side Slope ... ............................... = 1.50:1
2. Design Parameters
Mannings coefficient, n ........... ............................... 0.035
Bed Slopes ( %) .................. ............................... 2.900
3. Design details
Discharge....................... ............................... 26.00 cfs
Depth of Flow ................... ............................... 1.78 feet
Velocity......................... ............................... 5.50 fps
Channel Lining ....... ............................... . Cobbles and shingles
Freeboard....................... ............................... . 0.30 feet
Collection Ditch #4
Same as Collection Ditch #3
Mine Water Post -Mine Ditch
Channel Design (Non - Erodible)
Channel Type: Triangular, Equal Side Slopes
Dimensions: Left Side Slope 2.00:1
Right Side Slope 2.00:1
Wetted Perimeter: 2.32
Area of Wetted Cross Section: 0.54
Channel Slope: 5.0000
Manning's n of Channel: 0.0305
Discharge: 2.23 cfs
Depth of Flow: 0.52 feet
Velocity: 4.12 fps
Channel Lining: Excavated, No Vegetation
Freeboard: 0.30 feet
Revenue Mine August 2012 6 -10