Cofferdam Installation For
Underwater Repair

Cofferdam

  1. Home
  2. »
  3. Services
  4. »
  5. Cofferdam Installation

Cofferdam Installation: Enabling Safe, Dry Underwater Repair

A cofferdam is a temporary watertight enclosure that allows for dry underwater repairs and modifications. By pumping out the water, cofferdams create a dry workspace for divers to conduct work on ships, boats, bridges and more

How Do Cofferdams Work?

Cofferdams are commonly constructed using steel sheet piles driven into the seabed.

“These interlocking sheets circle the repair area and are sealed with packed clay or concrete,”

“We then pump out the water so our divers can access the dry, sealed space.”

– explains a Senior Commercial Diver at Trident Services.

Once the cofferdam is installed, divers conduct detailed inspections and require repairs ranging from small corrosion patches to shaft replacements. Hoses provide air and electricity, while suction hoses remove debris and sediment. 

 

Trident Services, with its extensive experience in underwater maintenance, ensures that every aspect of the repair work adheres to the highest standards of safety and efficiency. Our divers are equipped with state-of-the-art tools and follow a meticulous process to ensure thorough inspections and precise repairs.

Cofferdam Installation For Underwater Repairs | Marine Services SG

Advantages Over Dry Docking

For minor routine repairs, cofferdam installation is far more economical than dry docking enormous vessels. “It eliminates the need to transport ships to a different facility. Repairs can be completed right at the dock,” says Tan. Cofferdams also take days rather than weeks to install compared to dry docks.

When Are Cofferdams The Right Solution?

Cofferdams enable repair access anywhere along the hull’s submerged surface. They are ideal for minor steel repairs, sea chest cleaning, propeller changes, rudder repairs, creating new openings, and more. For major repairs involving structural reinforcements, dry docks are still preferred. Proper planning is critical to ensure cofferdam installation and repair work proceed smoothly.

Experience Trident's A1 Cofferdam Installation Services

By choosing Trident Services, clients are assured of a service that combines technical excellence with a commitment to environmental sustainability. We employ eco-friendly practices in all our operations, minimizing the impact on marine ecosystems while delivering exceptional results.

Contact the experts at Trident Services today.
to Discuss how cofferdam services can be the cost-effective underwater repair solution for your marine maintenance needs.

Contact Us today!

Let our hull cleaning experts keep your ships sailing at peak performance all year

Get a Quotes
Database Management Help Request from (#3)