Garvies Point Waterfront Development

Glen Cove, NY

Posillico Civil, Inc.

Contract Value:

Project Dates:
January 2017 to July 2021

  • Environmental dredging of 5,000 cy of impacted sediment with onsite stabilization, decanting and water treatment for redevelopment of a former Brownfield industrial site, construction of two marinas, and development of 3 multi-level buildings.
  • Underwater diver demolition and removal of deteriorated bulkhead.
  • Design build installation of a pile supported ecological pier in shallow tidal waters.
  • Installation of two new marinas, including floating docks and gangways.


The redevelopment of this amalgamation of former Superfund and Brownfield industrial sites along the shores of Hempstead Harbor in Glen Cove, New York involved a multitude of construction work scopes. Work consisted of environmental dredging of 5,000 cy of impacted sediment with onsite stabilization, and barge transportation to disposal facilities. In addition, the scope consisted of underwater demolition of the deteriorated bulkhead with marine divers and barge mounted crane support. Work included the construction of two marinas (75 slip transient marina and a 22 slip private marina), and a pile supported aluminum fixed bridge walkway.


One of the challenging aspects of the project was the coordination with State, Local and Federal Authorities. Performing construction while balancing interwoven regulations set by multiple agencies for the dredging, marina construction, environmental remediation, site work and infrastructure improvements set this project apart from the norm.  The completion of the dredging required a USACOE permit modification which was obtained by Breakwater Marine and Posillico through field trials and documented performance.


Breakwater Marine partnered with Posillico and took a very proactive approach to the challenges. Weekly meetings with the client and the consultants, coordinating directly with the Federal, State and Local Regulatory Agencies.  We used our experience in filing permits to expedite the approvals and modifications necessary to push the project forward. The project team assisted with the redesign of certain aspects of the bulkhead and drainage system to better suit field conditions. Utilizing modern hydrographic survey equipment, we were able to accurately remove the targeted material during dredging to reduce disposal costs and schedule.