The Philadelphia Naval Shipyard, formerly Navy Yard, was the first naval shipyard of the United States. It officially closed 30 September1995, although various projects were still underway in 2003.
Its greatest period came in World War II, when the yard employed 40,000 persons in the construction of 53 ships and the repair of 574.
After the war, the workforce dropped to 12,000, and in the 1960s new ships began to be contracted out to private companies. The last new ship constructed was the command ship USS Blue Ridge, in 1970.
Philadelphia NSY is on League Island in the Delaware River in Philadelphia.
The yard underwent numerous upgrades, primarily in the early part of the 20th century.
Forrestal arrived at the Philadelphia Naval Shipyard in September 1992 for her scheduled 14-month complex overhaul, but the overhaul was discontinued in March 1993 when the Forrestal was designated for decommissioning.