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Naval Ship Yards

U.S. Naval shipyards and bases

Since the nation's earliest days, the U.S. Navy has operated its own shipyards. There were 13 in total, four of which are still active. In addition, eight naval stations - one in the U.S., seven overseas - had some shipbuilding capability. At the end of WWII, the Navy terminated or cancelled almost all new ship construction contracts and only a few new ships were built in the Naval Shipyards thereafter. Then, in 1972, a report was published that demonstrated that ships built in Naval Shipyards cost, on average, about 30% more than ships built by private-sector shipbuilders: as a result, all new ship construction in the Naval Shipyards ceased and five of the nine remaining yards were closed. Finally, the U.S. Coast Guard maintains its own yard in Baltimore MD: a host of boats have been built there over the years but it is now primarily a maintenance facility. Comments or queries, please email

Shipyard Location State Est. Closed Disposition
Active Public Shipyards (5)
Norfolk NSY Portsmouth VA 1767 Maintains ships of the Atlantic Fleet
Pearl Harbor NSY Honolulu HI 1908 Maintains ships of the Pacific Fleet
Portsmouth NSY Kittery ME 1800 Maintains nuclear submarines
Puget Sound NSY Bremerton WA 1901 Decommissions nuclear-powered submarines
Coast Guard Yard Baltimore MD 1899 Maintains Coast Guard cutters and craft
Inactive Public Shipyards and Bases (10)
Boston NSY Charlestown MA 1800 1974 Turned over to the National Parks Service
Charleston NSY Charleston SC 1901 1996 Turned over to the City of Charleston
Mare Island NSY Vallejo CA 1854 1996 Turned over to the City of Vallejo
New York NSY Brooklyn NY 1800 1966 Turned over to the City of New York
Philadelphia NSY Philadelphia PA 1801 1996 Turned over to the City of Philadelphia
Long Beach NSY Long Beach CA 1943 1997 Turned over to the City and Port of Long Beach
New Orleans NS New Orleans LA 1901 2011 Converted into a "federal city"
Pensacola NSY Pensacola FL 1825 1911 Converted into a naval air station
San Francisco NSY Hunters Point CA 1941 1969 Turned over to the City of San Francisco
Washington NSY Washington DC 1799 1883 Retained by the Navy and used for a variety of shore establishments
Overseas Bases (7)
Cavite NS Cavite RP 1899 1992 Turned over to the Govt. of the Philippines
Culebra NS Culebra PR Turned over to the Govt. of Puerto Rico
Guam NS Apra GU 1944 Active
Guantanamo NS Guantanamo CU 1903 Active
Olongapo NS Olongapo RP 1899 1992 Turned over to the Govt. of the Philippines
Panama NS Balboa CZ Turned over to the Govt. of Panama
Tutuila NS Pago Pago AS 1899 1951 Turned over to the Dept. of the Interior

These shipbuilding pages are part of an ongoing project; new material and data is added regularly.

Back to Shipbuilding History main page.


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Naval Marine Archive
The Canadian Collection

Revised: 1 March 2023