Keller installs either tremie seals or soil mixing underneath water basements and structures. We cater to the most cost-effective alternative for our clients.

Tremie bottom seals illustration

Common uses

Minimize dewatering costs
Create barriers to side or bottom groundwater flow
For deep excavation below water tables


Tremie seals have been used for centuries. Some of the earliest tremie seals have been discovered under Roman bridges. With a long history of efficiency, a tremie seal aids an excavation to minimize water intrusion. When excavating deep, along a shoreline, close to a river, nearby a body of water, or below a water table, dewatering the site/excavation can be challenging. A tremie seal is a non-reinforced concrete slab anchored by piles against buoyancy and installed underwater by divers within sheet piling or slurry walls to control water intrusion.

The perimeter sheet piling is installed, followed by anchored production piles. The tremie is poured, and the excavation can be dewatered when the concrete slab gets hard enough.

Specialist contact

Paul Schmall | Vice President | 973-400-3631


Long history of efficiency
Minimizes water intrusion