Sterling Construction Company, Inc. (NasdaqGS: STRL) (“Sterling” or “the Company”) today announced that its affiliate, Myers & Sons, was apparent low bidder on California Department of Transportation (Caltrans) SR 99/SR 4 Interchange Project (Contract No.10-3A1004), with a bid of $88 million. The main components of the SR 99/SR 4 Interchange project include twelve bridges and two pump stations. The project is anticipated to begin at the end of 2012 and to take just under three years to complete. Peter MacKenna, Sterling’s Chief Executive Officer, commented, “We are very pleased with this win as it further enhances our position as a major civil contractor in the northern California marketplace." 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.