Great Lakes Dredge & Dock Corporation announced that it will be presenting at the Deutsche Bank Global Industrials and Basic Materials Conference in Chicago, Illinois today, June 16, 2011.

The presentation is scheduled to begin at 10:40 am CT/11:40 am ET. A live webcast of this presentation will be available on the Investor Relations section of the Company’s website at www.gldd.com . The webcast and accompanying slide presentation will be archived on the website within 24 hours and will be available for at least two weeks.