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.
This site on the Shark River Artificial Reef consists of two long ridges of seven huge rock piles each, with one long valley east-west between them. Between piles, there are smaller valleys. Each ridge contains approximately two million tons ( or one million cubic yards ) of granite, blasted and dredged from the bottom of New York harbor between September 2002 and September 2003. Peak depths range from 85 to 105 ft, bottom depth is 130 ft. In addition, 15 Redbird subway cars were deposited on or near one of the piles. A similar rockpile is located in shallower water on the Axel Carlson Reef.
N.J. Shore inlet to be surveyed after large sandbar forms
By Nicolas Fernandes NJ Advance Media for NJ.com Aug. 17, 2022
Sand piling up in Manasquan Inlet
Linda Anne, a 38-foot sportfishing boat based in Manasquan, heads outbound from Manasquan Inlet on Thursday, Aug. 11, 2022, in Manasquan. Sand has piled up along the south jetty, which some say has created hazardous navigational conditions as well as a new beach inside the inlet. Andrew Mills | NJ Advance Media for NJ.com
The Army Corps of Engineers will visit the Manasquan Inlet next week to survey a large sandbar that has formed in the waterway, U.S. Rep. Chris Smith, R-4th Dist., said Wednesday.
Sands at the inlet have shifted before, but the low-tide sandbar is larger than anything seen there before, the congressman said.
"We are gravely concerned that it will pose a serious hazard to navigation," Smith said.