In 2020, New Jersey deployed a 150-foot steel caisson gate in 125 feet of water; the structure extends 30 feet above the seabed and is expected to last more than 75 years

Underwater at Deepwater Reef in New Jersey, a caisson gate has been installed to form a new artificial reef. Designed to nurture marine biodiversity, this structure is expected to attract over 150 different species, from lobsters to crabs. Former studies suggest that creating artificial reefs can improve local fish populations when adequately maintained.