BAE Systems has received an additional $11.5 million contract to produce a structural component for the U.S. Navy’s Columbia-class ballistic missile submarine, the company announced on 16 April.
The new delivery order is part of a broader $72 million contract originally awarded in 2023. The component, described by the company as a “sequence critical heavy structure,” is part of the construction of the Navy’s next-generation strategic deterrent submarine, which is intended to replace the Ohio-class boats currently in service.
According to BAE Systems, work will be carried out at its facility in Louisville, Kentucky, which focuses on fabrication, welding, machining, and outfitting for complex naval structures. The company also noted that its Jacksonville, Florida shipyard contributes to the Columbia-class programme by manufacturing additional submarine components.
In a statement, Charles Lewis, director of Submarine Programs at BAE Systems, said: “The award is a testament to the hard-working, highly-skilled employees in Louisville, who manufacture complex submarine structures, and our engineering expertise in Minneapolis.”
BAE Systems reported it has invested over $250 million in submarine-related construction capabilities over recent years. The Columbia-class submarine programme is currently one of the U.S. Navy’s largest and most strategically important defence projects, supporting long-term nuclear deterrence through a new class of ballistic missile submarines.
The submarine itself
The Columbia-class is the United States Navy’s next-generation nuclear-powered ballistic missile submarine, designed to replace the aging Ohio-class fleet as the backbone of America’s sea-based nuclear deterrent. Currently under construction, the lead boat USS Columbia (SSBN-826) is scheduled to enter service in the early 2030s.
Each Columbia-class submarine will carry 16 Trident II D5 submarine-launched ballistic missiles (SLBMs), providing stealthy, survivable second-strike capability as part of the U.S. nuclear triad. The design prioritises low acoustic signatures, extended operational life, and advanced sensor and communication systems to enhance deterrence and survivability in a contested maritime environment.
The Columbia-class will be the largest submarine ever built by the United States, measuring over 560 feet in length and displacing approximately 21,000 tons. Powered by a newly designed life-of-ship nuclear reactor, the submarines will not require refuelling throughout their 42-year service lives, reducing maintenance requirements and maximising deployment time. Each vessel will have a crew of around 155 and incorporate electric-drive propulsion for quieter operation.
The programme is the U.S. Navy’s top acquisition priority and is expected to produce 12 boats in total, ensuring continuous at-sea deterrence well into the late 21st century.
