Portsmouth Naval Shipyard’s Major Modernization Effort

The Portsmouth Naval Shipyard in Kittery, Maine, is undergoing a significant transformation. This modernization is part of the Navy’s Shipyard Infrastructure Optimization Program (SIOP), which aims to enhance the facilities that repair and maintain naval ships and submarines. With a budget of $1.8 billion, the project is ambitious and essential for the future of the U.S. Navy’s operational capabilities. As the shipyard progresses, it is set to become a vital hub for the repair and modernization of nuclear-powered submarines.

Enhancing Capacity with New Dry Docks

The Portsmouth Naval Shipyard is currently about halfway through its extensive renovation project. This initiative includes the construction of two new graving dry docks specifically designed for nuclear-powered fast-attack submarines. Presently, the shipyard operates three dry docks, one of which is over a century old. The addition of these new facilities will significantly increase the shipyard’s capacity to service submarines efficiently.

Russell Gagner, a project leader, emphasized the importance of this upgrade. He stated, “The intent is to improve our overall ability to optimize these submarines and get them back out to the fleet as fast as possible.” This modernization effort is crucial for maintaining the Navy’s readiness and ensuring that submarines can be repaired and returned to service promptly. The two new dry docks, part of the Multi-Mission Dry Dock #1 project, will each measure approximately 115 feet wide, 575 feet long, and 40 feet deep. The scale of this project is unprecedented for the Navy, marking a significant investment in the future of naval operations.

A Long-Term Investment in Naval Readiness

The Shipyard Infrastructure Optimization Program began in 2018, following a report from the U.S. Government Accountability Office. The report highlighted that the facilities at the shipyards were in poor condition and not fully meeting the Navy’s operational needs. In response, the Navy initiated SIOP to address these deficiencies and modernize its public shipyards.

The Portsmouth Naval Shipyard’s renovation is a key component of this broader initiative. The dry docks are constructed from massive concrete pieces, with each dry dock requiring 27 individual components, each weighing around 7 million pounds. Nate Maher, the deputy officer in charge of construction, noted the engineering marvel of these structures. He stated, “From a raw materials perspective, it’s fascinating for an engineer like me.” The goal is to create facilities that will last for generations, as the Navy relies on these dry docks for hundreds of years.

Maher expressed pride in being part of such a significant project. He remarked, “You have to be a little bit patriotic to be involved in these things because it is a decision to be part of the team that does this.” The Portsmouth Naval Shipyard’s modernization is not just an industrial feat; it represents a commitment to national defense and the future of the U.S. Navy. With completion expected in 2028, this project is a testament to the Navy’s dedication to maintaining its fleet and ensuring operational readiness for years to come.

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