Sterling Construction Company, Inc. Subsidiary, Texas Sterling Construction Co., Is Apparent Low Bidder On A Texas Department Of Transportation Project Valued At Approximately $39 Million

Sterling Construction Company, Inc. (NasdaqGS: STRL) (“Sterling” or “the Company”) today announced that its subsidiary, Texas Sterling Construction Co., was apparent low bidder on Texas Department of Transportation (TxDOT) US 380 Project, with a bid of $39 million. The US 380 Project is approximately six miles long. The main components of the project include 244,000 square yards of concrete paving, 200,000 cubic yards of earth work, 35,000 linear feet of drainage structures and the construction of five bridges. The project is anticipated to begin in March 2013 and to take approximately thirty-six months to complete.

Brian Manning, P.E., Sterling’s Chief Development Officer commented, “We are proud of this Dallas Division win in Denton County, Texas, which will improve mobility and safety in this heavily travelled trucking corridor.”

Sterling is a leading heavy civil construction company that specializes in the building and reconstruction of transportation and water infrastructure projects in Texas, Utah, Nevada, Arizona, California and other states where there are construction opportunities. Its transportation infrastructure projects include highways, roads, bridges and light rail and its water infrastructure projects include water, wastewater and storm drainage systems.

This press release includes certain statements that fall within the definition of “forward-looking statements” under the Private Securities Litigation Reform Act of 1995. Any such statements are subject to risks and uncertainties, including overall economic and market conditions, federal, state and local government funding, competitors’ and customers’ actions, and weather conditions, which could cause actual results to differ materially from those anticipated, including those risks identified in the Company’s filings with the Securities and Exchange Commission. Accordingly, such statements should be considered in light of these risks. Any prediction by the Company is only a statement of management’s belief at the time the prediction is made. There can be no assurance that any prediction once made will continue thereafter to reflect management’s belief, and the Company does not undertake to update publicly its predictions or to make voluntary additional disclosures of nonpublic information, whether as a result of new information, future events or otherwise.

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