Interesting Facts - Normally, dumping scrap metal into the ocean would be frowned upon, but reusing old subway cars along the East Coast’s ocean floor has actually benefited some underwater ecosystems. New York’s Metropolitan Transit Authority began the reef-building program for its decommissioned subway cars in 2001; the cars were stripped down to their metal hulls before barges dropped them into the ocean between New Jersey and Georgia. While some of the cars have disintegrated, at least 1,000 are made from anti-corrosive carbon steel and can last indefinitely underwater, serving as homes for fish, invertebrates, and underwater plants. Proponents of the artificial reef system say the subway cars have allowed ecosystems to flourish where they might not have; the Atlantic’s coastal waters in the area are known for being particularly sandy and lacking many of the natural features necessary for quality aquatic habitats.
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