Mississippi-based Huntington Ingalls Industries' (HII) Ingalls Shipbuilding division plans to reactivate its facilities on the east bank of the Pascagoula River.
The site of the original Ingalls Shipbuilding Corp, founded in 1938, was decimated by Hurricane Katrina in 2005.
The reactivation, which will include the addition of covered construction areas and the restoration of an outfitting pier, will help the company prepare for future work, including next-generation amphibious assault ships and surface combatants.
Work will begin immediately and is expected to require two years to complete.
HII is America's largest military shipbuilding company.