Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has been awarded a $60 million contract to provide the U.S. Army Corps of Engineers with architectural and engineering design services throughout the U.S. Central Command Area of Responsibility and in support of the Transatlantic Division’s worldwide missions. Under this contract, Tetra Tech will provide a full range of services for infrastructure and facilities from the initial stages of program development and planning, through all aspects of design. Work performed under a previous contract included master planning for water supply and sewer services at U.S. military bases and municipalities in the Middle East. Tetra Tech is completing its final projects under the previous contract which include master planning, and design for expansion and modernization of Iraqi Air Force bases. The new indefinite delivery single-award contract is for one year and may be extended up to four optional years. About Tetra Tech ( www.tetratech.com) Tetra Tech is a leading provider of consulting, engineering, program management, construction management, and technical services. The Company supports government and commercial clients by providing innovative solutions to complex problems focused on water, environment, energy, infrastructure, and natural resources. With more than 14,000 staff worldwide, Tetra Tech’s capabilities span the entire project life cycle. Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions ("Future Factors"), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section "Risk Factors" included in the Company’s Form 10-K and 10-Q filings with the Securities and Exchange Commission.