Underground Construction
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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.
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Underground Construction Projects
Blue Plains Tunnel, Washington, DC.
The project is the design-build of a 24,000-foot-long, 26-foot-diameter CSO tunnel constructed in soft ground under and adjacent to the Potomac and Anacostia Rivers.
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Upper Northwest Interceptor Section 1&2, Sacramento, CA
The Upper Northwest Interceptor 1&2 project included 19, 240 feet of 144-inch-inside-diameter pipe using earth pressure balance tunneling methods; 130 feet of 120-inch-diameter interceptor pipeline;
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Queens Bored Tunnels East Side Access Project, New York, NY
Traylor Bros., Inc. leads the second largest contract in the system of tunnels being constructed to connect the Long Island Railroad (LIRR) commuter lines in Queens to Grand Central Station in Manhattan.
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University Link Light Rail U220 Tunnel, Seattle, WA
The Central Puget Sound Regional Transit Authority’s (Sound Transit) University Link project is a 3.15-mile extension of Sound Transit’s light rail system in Seattle, Washington. Located entirely
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San Vicente Pipeline, Lakeside, CA
The project involved construction of a pipeline connecting the San Vicente Pump Station and the Rancho Penasquitos Pressure Control and Hydroelectric Facility.
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Northeast Interceptor Sewer, Los Angeles, CA
As part of a joint venture, TBI was responsible for construction of 27,900 feet of 13-foot-diameter sewer tunnel utilizing three Lovat TBMs at a tunnel depth of approximately 160 feet.
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Eastside Light Rail Extension, Los Angeles, CA
This project extended the Metro Gold Line subway from Union Station in downtown Los Angeles to East Los Angeles.
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