Underwater Construction on Dams

J.F. Brennan Company divers are experienced underwater construction specialists. Whether constructing new infrastructure or repairing existing infrastructure, our divers have the right training and equipment to complete a high-quality dam project. Backed by one of the largest fleets of inland marine construction equipment in the United States, no project is too large or too small for us to accomplish.

Our divers repair underwater concrete, steel, and other structures in near zero-visibility conditions. We also have the ability to perform cold-water dives, hot-water dives, contaminated environment dives, and deep dives that require a decompression chamber.

Brennan is a proud member of the Association of Dive Contractors International, Inc. (ADCI), and all of our commercial divers are certified. We can mobilize anywhere in the continental United States in a timely manner while maintaining competitive rates. Having our own divers allows us to provide expertise on several repair options that can fit any budget.

Our divers excel at underwater concrete placement, including preplaced aggregate concrete, cast-in-place concrete, and precast concrete. Using several types of formwork, J.F. Brennan Company has successfully repaired ice-damaged, degraded, eroded, and broken concrete hidden below the surface of the water. We are also able to repair underwater steel structures. Specialty equipment, such as underwater saws, torches, and welders, enables our trained divers to remove or repair steel structures such as pipes, gate structures, trash racks, outfalls, etc.

Our abilities include: