Philadelphia Naval Shipyard

The Navy Yard, Philadelphia, PA
Philadelphia, Pennsylvania
An aerial view of the Philadelphia Naval Shipyard in 1955
Type	Shipyard
Site information
Controlled by	United States Navy
Site history
Built	1917 (League Island Facility)
In use	1801–1995
Battles/wars
Philadelphia Naval Shipyard Historic District
U.S. National Register of Historic Places
U.S. Historic district
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Location	South Broad Street Philadelphia, Pennsylvania, U.S.
Coordinates	39°53′28″N 75°10′43″W / 39.89111°N 75.17861°W / 39.89111; -75.17861
Area	1,200 acres (490 ha)
Built	1876
Architect	Robert E. Peary; Karcher & Smith
Architectural style	Modern Movement, Late Victorian
NRHP reference No.	99001579[1]
Added to NRHP	22 December 1999
Commandant's Quarters
U.S. National Register of Historic Places
U.S. Historic district Contributing property
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Location	Philadelphia, Pennsylvania
Built	1874
Architect	US Department of the Navy
Architectural style	Italian Villa
NRHP reference No.	76001661[1]
Added to NRHP	3 June 1976

The Philadelphia Naval Shipyard was the first United States Navy shipyard and was historically important for nearly two centuries.^[2]

Construction of the original Philadelphia Naval Shipyard began during the American Revolution in 1776 at Front and Federal Streets in what is now the Pennsport section of Philadelphia. In 1871, it was replaced by a new, much larger yard developed around facilities on League Island, at the confluence of the Delaware and Schuylkill rivers. The Navy Yard expansion stimulated the development over time of residences and businesses in South Philadelphia, where many shipyard workers lived. During World War II, some 40,000 workers operated on shifts around the clock to produce and repair ships at the yard for the war effort.

The U.S. Navy ended most of its activities at the shipyard in the 1990s, closing the base after recommendations by the Base Realignment and Closure commission. In 2000, the Philadelphia Industrial Development Corporation, on behalf of the City of Philadelphia, acquired it and began to redevelop the land. First called Philadelphia Naval Business Center, it is now known as The Navy Yard. It is a large mixed-use campus where nearly 15,000 people are employed by more than 120 companies representing a mix of industries, including cell therapy production facilities, global fashion companies, and a commercial shipyard. The U.S. Navy still operates a Naval Inactive Ship Maintenance Facility and a few engineering activities at the site.