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Upper Mississippi River 9-Foot Navigation System St. Paul District 13 Locks and Dams

U.S. Army Corps of Engineers St. Paul District Channels & Harbors Project Presentation for 2012 WEDA Midwest Chapter By Steve Tapp April 27 th , 2012. Upper Mississippi River 9-Foot Navigation System St. Paul District 13 Locks and Dams 284 Miles of 9-Foot Channel Mississippi River

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Upper Mississippi River 9-Foot Navigation System St. Paul District 13 Locks and Dams

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  1. U.S. Army Corps of EngineersSt. Paul DistrictChannels & Harbors ProjectPresentation for2012 WEDA Midwest ChapterBySteve TappApril 27th, 2012

  2. Upper Mississippi River 9-Foot Navigation System St. Paul District • 13 Locks and Dams • 284 Miles of 9-Foot Channel • Mississippi River • Minnesota River • St. Croix River • Black River • 11 Shallow Draft Recreation Harbors • 3 Shallow Draft Commercial Harbors

  3. St. Paul District Dredging • Average 850,000 CY/YR • Season is May-November • Government & Contract Dredges Used

  4. St. Paul District Dredging Government Equipment • Dredge GOETZ • Replaced THOMPSON in 2005 • 20-inch cutterhead pipeline dredge

  5. St. Paul District Dredging Government Equipment • Dredge DUBUQUE • 12 inch cutterhead pipeline dredge • Excavators • & • Cranes

  6. St. Paul District Dredging Contract Equipment • Hydraulic • Mostly site excavations • Some channel dredging • Mechanical • Mostly channel dredging • 3 year contract with LS Marine in 2011

  7. St. Paul District Dredging 2011 Dredging Summary Total Dredged = 1,478,989 CY Jobs = 54 62% Government 38% Contract Dredge GOETZ Dredging Season 2011: April 27th – November 16th (Last year May 24th – October 13th) Contractor: LS Marine

  8. Upcoming Dredging Jobs 2013: Pool 2 Channel Modification? 500,000 CY 2014: Lost Island Site Unloading (Pool 5) 750,000 CY 2015: McMillan Island Site Unloading (Pool 10) 200,000 CY 2016: Lower Pool 2 Multiple Site Unloading 1,000,000 CY

  9. Capoli Slough Environmental Management Program • Protect 10 Islands • Construct 9 New Islands • Qty Estimates • 250K CY Sand Fill • 35K CY Fines • 30K CY Rock • Award Late 2011

  10. Pool 2 Channel Study • Complete Plan in 2012 • Award Contract in 2013 • Remove .5 Mile of Channel ? • Reduce Dredging • Improve Safety

  11. Thanks!

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