Pasadena’s Tetra Tech Wins $49 Million Army Corps Contract for Southeastern Water Infrastructure

The U.S. Army Corps of Engineers has tapped Pasadena-headquartered Tetra Tech, Inc. for a $49 million contract to design water and navigation infrastructure across the Southeastern United States — from Alabama’s river systems to Florida’s hurricane-battered coastline.

The five-year, multiple-award contract with the Corps’ Mobile District will put Tetra Tech’s engineers to work on inland flood risk management, coastal hurricane and storm damage reduction, shallow and deep draft navigation, lock and dam infrastructure, and coastal and riverine ecosystem restoration projects, according to a company press release issued Wednesday. The work extends beyond the Southeast: the deal also covers architect-engineer design services in Central and South America through the Mobile District’s Support for Others Program.

Tetra Tech, a publicly traded engineering and consulting firm headquartered on East Foothill Boulevard, employs more than 25,000 people and trades on the NASDAQ exchange under the ticker symbol TTEK. The company has worked with the Army Corps for more than four decades, according to the announcement.

“Tetra Tech has provided highly specialized A-E design and technical services to support USACE in improving the nation’s navigation and water resources infrastructure for more than 40 years,” said Roger Argus, Tetra Tech’s chief executive officer, in the press release.

Argus, a chemical engineer who spent more than 30 years at the company, took over as CEO in February, succeeding longtime leader Dan Batrack.

The Mobile District contract is one of several major federal awards Tetra Tech has announced in recent months. In February, the company secured a separate $49 million contract with the Corps’ Portland District for navigation and water control design work. In November 2025, the Mobile District awarded the company a $249 million contract for environmental assessment and water management services worldwide. The firm also landed a $99 million Navy architect-engineer contract in March and a $100 million Air Force environmental services contract in February.

The Mobile District’s area of responsibility spans Alabama, Mississippi, northwest Florida, and portions of Georgia and Tennessee, according to the Corps. The district maintains more than 2,200 miles of navigation channels and ports.

Under the new contract, Tetra Tech’s teams will leverage in-house proprietary technology to conduct studies and analyses, create models and designs, and provide engineering services during construction, the company said in its press release.

Tetra Tech reported $4.28 billion in backlog as of the end of its second fiscal quarter in March — and the Mobile District work will add to it.