1. US Army Corps of Engineers BUILDING STRONG ® 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

2. BUILDING STRONG ® 17 April 2009 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. BUILDING STRONG ® Average 850,000 CY/YR Season is May-November Government & Contract Dredges Used St. Paul District Dredging 3

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

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

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

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

8. BUILDING STRONG ® 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 Upcoming Dredging Jobs 8

9. BUILDING STRONG ® Capoli Slough 9 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. BUILDING STRONG ® Pool 2 Channel Study  Complete Plan in 2012  Award Contract in 2013  Remove.5 Mile of Channel ?  Reduce Dredging  Improve Safety 10

11. BUILDING STRONG ® 11 Thanks!