J.F. Brennan Company divers are able to repair both underwater concrete and steel structures. We specialize in underwater construction on structures such as dams, bridge piers, retaining walls, and more. Whether it is in a cooling pond or under the ice during a cold winter, we can respond to a wide range of challenges.
Our divers specialize in underwater concrete repairs. Brennan’s innovative methods of concrete placement have brought cost-saving approaches to several projects. Our ability to "think outside the box” will introduce underwater construction methods that eliminate the need for cofferdams or other methods of dewatering.
We are also able to repair underwater steel structures. Specialty equipment such as underwater saws, torches, and welders enable our trained divers to remove or repair steel structures, including pipes, gate structures, trash racks, outfalls, etc.
Underwater Construction Services:
- Precast Concrete
- Formed Concrete
- Preplaced Aggregate Concrete (PAC)
- Pressure Grouting
- Concrete Pile Jackets
- Demolition
- Welding
- Scour and Erosion Repair
Each method has been used to successfully repair and replace deteriorated structures underwater. Through the use of 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.