Great Lakes Dredge & Dock CORP - FORM 10-K - EX-21.1 - SUBSIDIARIES

file	filename
10-K - FORM 10-K - Great Lakes Dredge & Dock CORP	d10k.htm
EX-31.1 - SECTION 302 CEO CERTIFICATION - Great Lakes Dredge & Dock CORP	dex311.htm
EX-31.2 - SECTION 302 CFO CERTIFICATION - Great Lakes Dredge & Dock CORP	dex312.htm
EX-23.3 - CONSENT OF J.H. COHN LLP - Great Lakes Dredge & Dock CORP	dex233.htm
EX-32.2 - SECTION 906 CFO CERTIFICATION - Great Lakes Dredge & Dock CORP	dex322.htm
EX-12.1 - RATIO OF EARNINGS TO FIXED CHARGES - Great Lakes Dredge & Dock CORP	dex121.htm
EX-23.1 - CONSENT OF DELOITTE & TOUCHE LLP - Great Lakes Dredge & Dock CORP	dex231.htm
EX-32.1 - SECTION 906 CEO CERTIFICATION - Great Lakes Dredge & Dock CORP	dex321.htm
EX-23.2 - CONSENT OF DELOITTE & TOUCHE LLP - Great Lakes Dredge & Dock CORP	dex232.htm

Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT


Name		Jurisdiction of Incorporation
Great Lakes Dredge & Dock Company, LLC		Delaware

Great Lakes Caribbean Dredging, Inc.		Delaware

Dawson Marine Services Company		Delaware

Fifty-Three Dredging Corporation		New Jersey

Great Lakes Dredge & Dock Co Brasil Ltda.		Brazil

Lydon Dredging & Construction Co. Ltd.		Canada

Great Lakes Dredge & Dock (Bahamas) Ltd.		Bahamas

GLDD Mexicana, S. de R.L. de C.V.		Mexico

NASDI Holdings Corporation		Delaware

NASDI, LLC		Delaware

Yankee Environmental Services, LLC		Delaware

Great Lakes Dredge & Dock CORP - FORM 10-K - EX-21.1 - SUBSIDIARIES - March 14, 2011