Tetra Tech, Inc. (NASDAQ: TTEK) announced today that it has been awarded a $45 million multiple award indefinite delivery contract by the U.S. Army Corps of Engineers Mobile District in a joint venture with the Mason & Hangar Group, Inc. Under this 5-year contract, Tetra Tech will provide architectural and engineering design services to support projects including master planning, value engineering studies, and facility design. Tetra Tech will prepare project definition and programming documents, charrettes, design-build solicitations, value engineering studies, environmental permit applications, and facility condition assessments within the southeastern United States.