Underground Construction

Traylor Bros., Inc. is one of the most respected and sought-after tunneling firms in a very specialized industry. We are one of the few companies that possess the ability to complete the most technically demanding underground projects, whether soft ground or hard rock. Our track record of more than 110 projects and 90-plus miles of bored tunnels speaks for itself.

Watch a video (The Life of a Tunneler) showcasing our men and women working on the University Link project in Seattle, Washington as the northbound tunnel breaks through.

Mixed shield/slurry tunneling • Earth pressure balance tunneling • SEM tunneling • Drill and shoot tunneling
Shaft construction • Grouting • Mine development • Precast tunnel liners