Welcome to Portsmouth Naval Shipyard

Shipyard Commander

Fact Sheet

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History

The Periscope

Welcome to the Official Portsmouth Naval Shipyard Web Site!

Portsmouth Naval Shipyard is one of four remaining publicly owned shipyards in the nation. Located about 50 miles north of Boston, Massachusetts, at the southernmost tip of Maine, the Shipyard fully encompasses Seavey Island which sits at the mouth of the Piscataqua River. The island is across the harbor from Portsmouth, New Hampshire with access to the mainland by two bridges that connect it to Kittery, Maine. Portsmouth is the most experienced naval shipyard in submarine design, construction, modernization, and maintenance, and has a key role in the very-deep ocean submersible and special operations arenas. Today the Shipyard’s primary mission is the overhaul, repair, modernization, and refueling of LOS ANGELES Class nuclear powered submarines. It is currently the planning yard for the Navy’s deepest diving submarine and submersible as well as other scientific research, defense prototype testing, and submerged rescue platforms. It is also the Ship Availability Planning and Engineering Center for the LOS ANGELES Class. Portsmouth specializes in world-wide Fleet support and is an active participant in Northeast Regional Maintenance. The Shipyard has an active Technology Transfer Office and has had numerous successes in partnering initiatives involving academia and the private sector.

Our Mission

To keep America’s Navy #1 in the world by serving as a partner on the Navy maintenance team, providing the best value in industrial and engineering support for world-wide nuclear submarine maintenance and inter-service regional maintenance..

Our Vision

Portsmouth is an enduring and respected member of the Navy maintenance team noted for: a flexible, mobile work force performing at full potential; timely, thorough response to customer needs when and where required; and an expanded role in life cycle maintenance of Navy submersibles.

Naval Sea Systems Command, Portsmouth Naval Shipyard