JT Cleary

The Leader in Marine Construction

Contracting Service

JT Cleary is a leader in turn-key marine construction services, delivering innovation with the highest level of quality and safety. From repairs to new installations, dredging, or deep foundations, the company mobilizes the best equipment, technology, and talent to make your project a success.


All projects start with accurate, detailed estimating by an experienced JT Cleary team. Installation and maintenance of marine facilities requires engineering expertise, the latest technology and equipment, and safe execution. Once planning and performance are underway, your project manager will be visible on site, reachable, and responsive. Working in close communication with our clients from the beginning leads to long-term partnerships and successful outcomes.

  • Bulkheads
  • Coastal Resiliency
  • Cofferdams
  • Dams
  • Docks
  • Drilled Piles & Tiebacks
  • Fender Systems
  • Fixed Aids to Navigation
  • Offshore Platforms
  • Piers
  • Pile Jackets
  • Pipelines
  • Revetments
  • Shoreline Stabilization
  • Underpinning


An experienced dredge team analyzes all the project parameters to determine the optimum equipment for completing the work. This involves knowledge of how sediment characteristics impact equipment selection and material handling, including stabilization and final placement. Whenever possible, the company looks for opportunities for beneficial use of dredged material, which often can be a valuable asset as construction fill or for beach re-nourishment.

  • Maintenance
  • Deepening
  • Debris Removal
  • Clamshell Bucket
  • Environmental
  • Upland Placement
  • Beach or Offshore Placement
  • Sediment Dewatering
  • Sediment Stabilization


A foundations project can have several potential approaches, so understanding the risk or benefit of each can mean the difference between timely results and delay, due to re-work or structure failure. JT Cleary understands the different risks and has experienced planners and engineers to manage them. A specialized team with expertise in underwater engineering inspection and the latest in deep foundation technologies will determine the best method for implementation, using only state-of-the-art equipment and the most advanced materials.

  • Drilled Shafts
  • Tie Backs
  • Mini Piles
  • Driven Piles
  • Cofferdam Construction


The diving division at JT Cleary has background in some of the world’s most challenging marine environments. Its in-house dive crews have the skill and training to assess conditions and maintain the highest safety standards, implementing only the most conservative interpretation of commercial diving regulations. The dive teams inspect and perform underwater work for all types of marine infrastructure, including offshore energy platforms, offloading docks, and some of the largest bridge construction projects in the country.

  • Underwater Inspection
  • Pile Jacketing – Epoxy and Concrete
  • Pipeline Installation
  • Pipeline Maintenance
  • Offshore Platform Nodal Repairs
  • Intake Structure Maintenance
  • Address 100 Red Schoolhouse Road
    Suite A-12
    Chestnut Ridge, NY 10977

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