US Navy Opens Alabama Plant for Mass Production of Virginia and Columbia-class Submarine Components.

The U.S. Navy and Hadrian have opened a high-capacity manufacturing facility in Cherokee, Alabama, expanding production of critical components for Virginia-class attack submarines and Columbia-class ballistic missile submarines. The site is designed to accelerate output and eliminate key bottlenecks as the Navy pushes to meet rising demand across both programs.

The facility delivers a direct boost to undersea warfare capability by increasing the speed and reliability of parts that underpin fleet readiness and nuclear deterrence. Its launch comes at a pivotal moment, as the Columbia-class program anchors U.S. strategic deterrence and any delay carries national-level consequences.

Read also: U.S. Navy Awards $15.4B Columbia-Class Submarine Contract to Secure Nuclear Deterrence Through 2035

U.S. Navy USS Iowa (SSN 797), a Virginia-class submarine, as the US Navy expands mass production to boost fleet readiness (Picture source: U.S. Department of War)

Backed by $900 million in federal funding under the One Big Beautiful Bill Act (OBBBA) and $1.5 billion in private capital, the 2.2 million square foot “F4” facility is designed to address persistent industrial bottlenecks in U.S. submarine construction. Announced by the U.S. Navy on March 20, the initiative focuses on scaling production of pressure hull structures, missile compartment modules, and nuclear propulsion components critical to maintaining submarine delivery schedules and operational readiness.

The Virginia-class attack submarine is the U.S. Navy’s primary multi-mission nuclear-powered platform, designed for operations across both open-ocean and littoral environments. With a submerged displacement of approximately 7,800 tons and powered by a life-of-ship S9G nuclear reactor, the submarine combines endurance with advanced stealth characteristics, including pump-jet propulsion and extensive acoustic quieting measures that reduce detectability in contested waters.

Operationally, Virginia-class submarines perform intelligence, surveillance, and reconnaissance missions, anti-submarine and anti-surface warfare, and long-range precision strike using Tomahawk cruise missiles and Mk 48 heavyweight torpedoes. The introduction of the Virginia Payload Module in Block V variants significantly increases vertical payload capacity, enabling the submarine to carry additional cruise missiles and reinforcing its role as a distributed strike asset within U.S. naval force structure.

The Columbia-class ballistic missile submarine represents the future cornerstone of the United States’ sea-based nuclear deterrent. With a displacement exceeding 20,000 tons, it is the largest submarine ever built by the U.S. Navy and is designed to carry 16 Trident II D5 submarine-launched ballistic missiles, ensuring a survivable second-strike capability essential to strategic stability.

Unlike previous classes, the Columbia-class incorporates a life-of-ship nuclear reactor and an advanced electric drive propulsion system, significantly reducing acoustic signature while increasing reliability and availability. These design features enhance survivability against evolving anti-submarine warfare threats while imposing strict industrial requirements to meet delivery timelines, particularly as the Navy plans to receive its first operational unit by 2028.

The F4 facility introduces a new industrial production model based on automation, digital engineering, and scalable manufacturing. By integrating robotics, AI-driven inspection systems, and high-precision machining, the site is expected to reduce production errors and accelerate throughput of complex submarine components that require extremely tight tolerances and rigorous quality assurance.

At 2.2 million square feet, the Cherokee facility ranks among the largest advanced manufacturing sites dedicated to naval shipbuilding support in the United States. It enables consolidation of previously distributed manufacturing processes across a fragmented supplier network, improving efficiency and mitigating delays linked to workforce shortages and limited industrial capacity that have historically constrained submarine production rates.

The project is expected to create up to 1,000 high-skilled jobs focused on advanced manufacturing disciplines, including robotics, digital systems integration, and precision fabrication. This workforce expansion aligns with broader Pentagon efforts to modernize the defense industrial base and ensure long-term sustainability of critical production capabilities required for nuclear and conventional naval platforms.

From an operational perspective, expanding production capacity for both Virginia-class and Columbia-class submarines directly supports U.S. naval readiness in an era of intensifying great power competition. Attack submarines provide flexible and forward-deployed combat power for intelligence and strike missions, while ballistic missile submarines ensure uninterrupted nuclear deterrence through continuous at-sea presence.

The Cherokee facility also reflects a broader shift toward leveraging private-sector innovation to overcome structural limitations in defense manufacturing. By combining federal investment with significant private capital, the Navy is accelerating the adoption of advanced production technologies capable of supporting sustained fleet expansion and modernization.

In strategic terms, the activation of Hadrian’s F4 facility strengthens the United States’ ability to maintain undersea dominance while safeguarding the credibility of its nuclear deterrent. By aligning industrial output with operational demand, the Navy is addressing a critical enabler of maritime power projection: the capacity to build, sustain, and scale its most survivable and strategically decisive platforms in response to evolving global threats.

Written by Alain Servaes – Chief Editor, Army Recognition Group
Alain Servaes is a former infantry non-commissioned officer and the founder of Army Recognition. With over 20 years in defense journalism, he provides expert analysis on military equipment, NATO operations, and the global defense industry.