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.
With the closure of the PhiladelphiaNaval Station and PhiladelphiaNavalShipyard in 1995, SSES assumed responsibilities as "host activity" for the 24 activities remaining at the base.
Naval Station Philadelphia was closed upon the reccomendation of the 1991 Defense Base Closure and Realignment Commission (BRAC).
The PhiladelphiaNaval Complex is located at the confluence of the Delaware and Schuylkill Rivers.