The U.S. Army Corps of Engineers, New York District proposes to perform maintenance dredging of the Rockaway Inlet of Jamaica Bay, New York, Federal Navigation Project, with subsequent beneficial use placement of the dredged material at one or more of the following placement sites: beach placement, upland placement and/or the Historic Area Remediation Site (HARS) in the Atlantic Ocean.
The proposed maintenance dredging would remove up to approximately 350,000 cubic yards of sandy sediment to a depth of 20 feet below Mean Low Water with 1 feet allowable Over-Depth in the Basic Work and Option Work areas within the Rockaway Inlet navigation channel. This work cannot be efficiently accomplished by a mechanical clamshell bucket dredge.
A hydraulic cutter-head dredge or a self-propelled trailing-arm pump-out hopper dredge is expected to perform the work. The contractor is required to maintain an integrated production of at least 7,500 cubic yards per day.
It is anticipated that dredging/placement would take place within the approximate time period of 1 August 2012 to 15 November 2012.
The work is estimated to cost between $3,000,000 and $5,000,000.
Dredging Today Staff, June 1, 2012;