SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders of Great Lakes Dredge & Dock Corporation of Upcoming Deadline --

SHAREHOLDER ALERT: Pomerantz Law Firm Reminds Shareholders of Great Lakes
Dredge & Dock Corporation of Upcoming Deadline -- GLDD

NEW YORK, April 12, 2013 (GLOBE NEWSWIRE) -- Pomerantz Grossman Hufford
Dahlstrom & Gross LLP has filed a class action lawsuit against Great Lakes
Dredge & Dock Corporation ("Great Lakes" or the "Company")(Nasdaq:GLDD) and
certain of its officers. The class action filed in United States District
Court, Northern District of Illinois, and docketed under 13 C 02450, is on
behalf of a class consisting of all persons or entities who purchased or
otherwise acquired securities of Great Lakes between August 7, 2012 and March
14, 2013, both dates inclusive of (the "Class Period"). This class action
seeks to recover damages against the Company and certain of its officers and
directors as a result of alleged violations of the federal securities laws
pursuant to Sections 10(b) and 20(a) of the Securities Exchange Act of 1934
and Rule 10b-5 promulgated thereunder.

If you are a shareholder who purchased Great Lakes securities during the Class
Period, you have until May 20, 2013 to ask the Court to appoint you as Lead
Plaintiff for the class. A copy of the Complaint can be obtained at
www.pomerantzlaw.com.  To discuss this action, contact Robert S. Willoughby
at rswilloughby@pomlaw.com or 888.476.6529 (or 888.4-POMLAW), toll free, x237.
Those who inquire by e-mail are encouraged to include their mailing address,
telephone number, and number of shares purchased.

Great Lakes is the largest provider of dredging services in the United States
and a major provider of commercial and industrial demolition and remediation
services.

The Complaint alleges that throughout the Class Period, Defendants issued a
series of materially false and misleading statements regarding the Company's
revenues and operations, and on March 14, 2013 Great Lakes announced that its
financial statements for the quarterly periods ended June 30, 2012 and
September 30, 2012 should no longer be relied upon by investors and had to be
restated. Great Lakes stated that "certain pending change orders where client
acceptance has not been finalized were included as revenue." Consequently, it
concluded that "2012 second and third quarter demolition segment revenues were
overstated by $3.9 million and $4.3 million, respectively." Great Lakes also
announced the departure of its Chief Operating Officer and President Bruce J.
Biemeck, who served as Chief Financial Officer until August 20, 2012. On
this news the price of Great Lakes stock has fallen by over 20%.On March 15,
2013 the stock fell $1.61 or 18% to close at $7.36 per share.

The Pomerantz Firm, with offices in New York, Chicago, Florida, and San Diego,
is acknowledged as one of the premier firms in the areas of corporate,
securities, and antitrust class litigation. Founded by the late Abraham L.
Pomerantz, known as the dean of the class action bar, the Pomerantz Firm
pioneered the field of securities class actions. Today, more than 70 years
later, the Pomerantz Firm continues in the tradition he established, fighting
for the rights of the victims of securities fraud, breaches of fiduciary duty,
and corporate misconduct. The Firm has recovered numerous multimillion-dollar
damages awards on behalf of class members. See www.pomerantzlaw.com.

CONTACT: Robert S. Willoughby
         Pomerantz Grossman Hufford Dahlstrom & Gross LLP
         rswilloughby@pomlaw.com
 
Press spacebar to pause and continue. Press esc to stop.