Attached files

file filename
EX-21.1 - LIST OF SUBSIDIARIES - Orion Group Holdings Incexhibit_211.htm
EX-31.1 - CERTIFICATION OF CEO - Orion Group Holdings Incexhibit_311.htm
EX-23.2 - CONSENT OF GARLAND SANDHOP, CPA - Orion Group Holdings Incexhibit_232.htm
EX-31.2 - CERTIFICATION OF CFO - Orion Group Holdings Incexhibit_312.htm
EX-32.1 - CERTIFICATION OF CEO AND CFO - Orion Group Holdings Incexhibit_321.htm
EX-99.1 - 2008 TWL FINANCIAL STATEMENTS - Orion Group Holdings Incexhibit_991twl.htm
EX-99.2 - SEPTEMBER 30 2009 TWL FINANCIAL STATEMENTS - Orion Group Holdings Incexhibit_992twl.htm
10-K - ANNUAL REPORT FOR THE YEAR ENDED DECEMBER 31, 2009 - Orion Group Holdings Incannualreportonform10k.htm
EX-99.3 - PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS - Orion Group Holdings Incexhibit_993twl.htm
 

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

 
We have issued our reports dated March 9, 2010  with respect to the consolidated financial statements, schedule and internal control over financial reporting included in this Annual Report on Form 10-K of Orion Marine Group, Inc. for the year ended  December 31, 2009.  We hereby consent to the incorporation by reference of said reports in the Registration Statements of Orion Marine Group on Form S-3 (File No. 333-160719, effective August 7, 2009) and on Form S-8 (File No. 333-148301, effective December 21, 2007).


/s/ Grant Thornton LLP
Houston, Texas
March 9, 2010