From 2007 to 2010, 2500 New York City subway cars were dumped into the Atlantic Ocean for the purpose of creating an artificial coral reef for crustaceans and fish.
Once retired, cars were stripped of any loose parts and stacked aboard a barge. They were then brought to the various dumping sites off the coast from Delaware to South Carolina.
The project has enabled the coastal seafood supply to flurish as a direct result of the reef's attraction of smaller creatures for larger fish to feed on.
