Home : Home : Shipyards : Portsmouth : Facts



Portsmouth Naval Shipyard Facts
Portsmouth Naval Shipyard Aerial View


Portsmouth Naval Shipyard (PNS) is one of four remaining naval shipyards in the nation. Centrally located about 50 miles from Boston, Massachusetts, Portland, Maine and Manchester, New Hampshire, at the southernmost tip of Maine, the shipyard fully encompasses Seavey Island that sits at the mouth of the Piscataqua River. This federally-owned island is across the harbor from Portsmouth, New Hampshire, with access to the mainland by two bridges that connect to Kittery, Maine.

Portsmouth Naval Shipyard employs approximately 6,600 civilian employees.

PNS has an active apprentice and engineer recruitment program. In addition to the civilian workforce, there are approximately 100 naval officers and enlisted personnel assigned to the shipyard.

PNS encompasses over 297 acres including the main base and a family housing site off base in Kittery, Maine.

Many of the buildings located at the shipyard are in an historic district and 50 buildings are listed on the National Register of Historic Places.

PNS has three dry docks and performs maintenance and modernization on Los Angeles and Virginia-class submarines.

PNS has converted two of its four Power Plant boilers to natural gas, part of an award winning comprehensive energy management program. This project invested millions of dollars to implement a major power plant and utility distribution recapitalization effort utilizing an Army Corps of Engineers Regional Energy Savings Performance Contract.

PNS Morale, Welfare and Recreation Services focuses on quality of life for military families, as well as civilian employees on a space-available basis. In addition to specific MWR services, the shipyard's proximity to Boston, Massachusetts, Portland, Maine and Manchester, New Hampshire allows patrons to take advantage of cultural and sporting events in these cities. Visit the
MWR web page for more information.