Boston Navy Yard

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Boston Naval Shipyard
U.S. National Register of Historic Places
U.S. National Historic Landmark District
Navy Yard in the 1930s
Location	Southeast of Chelsea Street, Charlestown, Boston, Massachusetts
Coordinates	42°22′34″N 71°3′9″W / 42.37611°N 71.05250°W / 42.37611; -71.05250
Built	1800
Architect	Alexander Parris, et al.
NRHP reference No.	66000134[1]
Added to NRHP	15 November 1966

The Boston Navy Yard, originally called the Charlestown Navy Yard and later Boston Naval Shipyard, was one of the oldest shipbuilding facilities in the United States Navy. It was established in 1801 as part of the recent establishment of the new U.S. Department of the Navy in 1798. After 175 years of military service, it was decommissioned as a naval installation on 1 July 1974.

The 30-acre (12 ha) property is administered by the National Park Service, becoming part of Boston National Historical Park. Enough of the yard remains in operation to support the moored USS Constitution ("Old Ironsides") of 1797, built as one of the original six heavy frigates for the revived American navy, and the oldest warship still commissioned in the United States Navy and afloat in the world. USS Cassin Young (DD-793), a 1943 World War II-era Fletcher-class destroyer serving as a museum ship, is also berthed here. The museum area includes a dock which is a stop on the MBTA Boat water transport system. Among local people in the area and the National Park Service, it is still known as the Charlestown Navy Yard.^[2]

The South Boston Naval Annex was located along the waterfront in South Boston, an annex of the Navy Yard from 1920 to 1974. Other annexes of the Navy Yard during World War II were the Chelsea Naval Annex (formerly the Green Shipyard, now the Fitzgerald Shipyard),^[3] East Boston Naval Annex, and Boston Naval Yard Fuel Depot Annex.^[4][5]