Between 2001 and 2010, New York City Transit sent more than 2,500 retired subway cars—stripped to their steel shells—from barges into the Atlantic to form artificial reefs. At Delaware’s Redbird Reef, 714 cars added structure to a largely featureless sandy bo - scienceblog.com

New York City Transit deployed over 2,500 retired subway cars as artificial reefs in the Atlantic between 2001 and 2010, transforming barren seafloor into structured habitats. The initiative, including a notable project at Delaware’s Redbird Reef, repurposed stripped-down steel shells to support marine ecosystems. Environmental efforts like these aim to restore underwater biodiversity by providing shelter for marine life. The unconventional use of urban transit materials highlights a creative approach to conservation.

Between 2001 and 2010, New York City Transit sent more than 2,500 retired subway cars—stripped to their steel shells—from barges into the Atlantic to form artificial reefs. At Delaware’s Redbird Reef, 714 cars added structure to a largely featureless sandy bo  scienceblog.com