Commercial Diving

Substructure’s well-trained commercial divers have decades of experience throughout the world – from the Arctic Ocean in winter to the Persian Gulf in summer. We have responded to oil spills and addressed problems in ballast tanks and pump bays and at nuclear power plants. We have conducted repairs at oil refineries and on pipelines and have worked from the base of dams to the top of water supply tanks.

Our timely and effective commercial diving encompasses a wide range of services: inspecting piers, bridges, dams, pipelines, and vessels; maintaining trash racks, traveling water screens, and sluice gates; installing and repairing pumping equipment; supporting dredging operations; rehabilitating marine structures; installing cathodic protection systems; maintaining vessels; performing salvage; providing remotely operated vehicle (ROV) services; removing biological growth; installing revetment mats; setting underwater explosives; installing pile encapsulations; constructing concrete forming and performing pumping operations; performing underwater burning and welding; inspecting potable water system inspection and maintenance; undertaking archaeological site surveys and recovery; and supporting oceanographic and hydrographic research.

Importantly, Substructure diving operations are constantly reevaluated for the complete management of risk; safety is our primary consideration.

Partial list of Substructure’s commercial diving projects.
Project Location
Inspection and maintenance of municipal drinking water intake Beverly, MA
Inspection and maintenance of river water outfall and diffuser system Newington, NH
Installation of ship fendering system and application of marine coatings Newington, NH
Underwater structural assessment of bridge abutments Nashua, NH
Inspection and evaluation of ship berthing structures Oceanside, NY
Inspection of raw water outfall and diffuser Salem, MA
Inspection and maintenance of power plant raw water intake and outfall diffuser Saugus, MA
Video inspection of sonar array Bath, ME
Plural component pump operations for APE epoxy encapsulations Manzanillo, Mexico
Inspection and maintenance of power plant raw water intake and outfall diffuser Newington, NH

Latest News

  • Substructure Demos Survey Vessel Orion February 14-18

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  • Diver dressed in a double-suit in preparation for a clear-well dive.

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  • Multibeam point cloud of sunken boats.

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  • Multibeam point cloud of a bridge support structure and nearby debris field.

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  • Deployed equipment trailer with diver air compressor, welder, hydraulic power pack and

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  • Multibeam point cloud of a bridge support structure.

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