Philadelphia Navy Yard closure (1994)
The Navy closed its Philadelphia base in 1994 after more than 190 years of shipbuilding there. The yard had built warships from the age of sail through the Cold War.
Thousands of workers lost jobs, and the Navy consolidated shipbuilding in a handful of private yards.
The site became a business park, and commercial shipbuilding continued under private owners, but no Navy warship has been built there since.
Hanwha's push to build Navy ships at the same yard would reverse a 30-year gap in naval shipbuilding at the site.
