Barnegat Light Artificial Reef

Barnegat Light Artificial Reef

3.1 Nautical Miles off Barnegat, 1.08 sq miles
Depth: 50-60 ft [download]

Barnegat Light Artificial Reef

Barnegat Light reef is scattered throughout with Army tanks, and tire units, and also Reef Balls ( not shown. ) Minimum clearance at mean low water is 40 feet. This reef was also the site of a major scientific study on artificial reefs:



rock reef
A hopper barge full of rock

All manner of concrete, steel, and stone rubble from dredging, demolition projects, and other construction is used as artificial reef materials. This material is generally available at very low cost or free from construction companies who are more than happy to get rid of it. Transportation costs determine where this material is used by the Reef Program.






porthole diagram

Portholes are used to let light and air into a ship. They are usually constructed of brass for corrosion resistance, which makes them highly desirable as collector's items. The drawing at right shows all the major parts:

  • The immovable backing plate, bolted to the vessel's hull, which carries the hinges for the swing plate and deadlight
  • The glass swing plate, which is secured shut by large butterfly nuts called 'dogs'
  • The deadlight, used when it is desired to black-out the vessel, as in time of war