PASADENA, Calif.--(BUSINESS WIRE)--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 proje