Great Lakes Dredge & Dock CORP - FORM 10-K/A - EX-23.1 - CONSENT OF DELOITTE & TOUCHE LLP

Attached files

file	filename
10-K/A - FORM 10-K AMENDMENT NO. 1 - Great Lakes Dredge & Dock CORP	d10ka.htm
EX-32.2 - CERTIFICATION PURSUANT TO SECTION 906 - Great Lakes Dredge & Dock CORP	dex322.htm
EX-23.3 - CONSENT OF JH COHN LLP - Great Lakes Dredge & Dock CORP	dex233.htm
EX-31.1 - CERTIFICATION PURSUANT TO SECTION 302 - Great Lakes Dredge & Dock CORP	dex311.htm
EX-32.1 - CERTIFICATION PURSUANT TO SECTION 906 - Great Lakes Dredge & Dock CORP	dex321.htm
EX-23.2 - CONSENT OF DELOITTE & TOUCHE LLP - Great Lakes Dredge & Dock CORP	dex232.htm
EX-31.2 - CERTIFICATION PURSUANT TO SECTION 302 - Great Lakes Dredge & Dock CORP	dex312.htm
EX-21.1 - SUBSIDIARIES - Great Lakes Dredge & Dock CORP	dex211.htm
EX-12.1 - RATIO OF EARNINGS TO FIXED CHARGES - Great Lakes Dredge & Dock CORP	dex121.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-153207 on Form S-3 and Registration Statement No. 333-150067 on Form S-8 of our report dated March 9, 2010 (January 7, 2011 as to Note 21), relating to the consolidated financial statements and financial statement schedule of Great Lakes Dredge & Dock Corporation and subsidiaries, and our report dated March 9, 2010, relating to the effectiveness of Great Lakes Dredge & Dock Corporation and subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K/A of Great Lakes Dredge & Dock Corporation for the year ended December 31, 2009.

/s/ Deloitte & Touche LLP

Chicago, Illinois

January 7, 2011

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