US Army Corps of Engineers

BUILDING STRONG®

U.S. Army Corps of EngineersSt. Paul DistrictChannels & Harbors Project

Presentation for2012 WEDA Midwest Chapter

BySteve Tapp

April 27th, 2012

BUILDING STRONG®17 April 2009 2

Upper Mississippi River9-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

BUILDING STRONG®

• Average 850,000 CY/YR

• Season is May-November

• Government & Contract Dredges Used

St. Paul District Dredging

3

BUILDING STRONG®

Government Equipment

Dredge GOETZ

• Replaced THOMPSON in

2005

• 20-inch cutterhead pipeline

dredge

St. Paul District Dredging

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BUILDING STRONG®

Government Equipment

Dredge DUBUQUE

• 12 inch cutterhead pipeline dredge

Excavators

&

Cranes

St. Paul District Dredging

5

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

BUILDING STRONG®

2011 Dredging Summary

Total Dredged = 1,478,989 CY Jobs = 54

62% Government 38% Contract

Contractor: LS Marine

Dredging Season 2011:April 27th – November 16th

(Last year May 24th – October 13th)

Dredge GOETZ

St. Paul District Dredging

7

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 Unloading1,000,000 CY

Upcoming Dredging Jobs

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BUILDING STRONG®

Capoli Slough

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Environmental Management ProgramProtect 10 IslandsConstruct 9 New IslandsQty Estimates

250K CY Sand Fill 35K CY Fines 30K CY Rock

Award Late 2011

BUILDING STRONG®

Pool 2 Channel Study

Complete Plan in 2012 Award Contract in 2013 Remove .5 Mile of

Channel ? Reduce Dredging Improve Safety

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BUILDING STRONG®11

Thanks!Thanks!