The long-promised extension of the métro’s Blue Line will be built primarily by a tunnel-boring machine that is among the largest of its kind in the world.

Construction of Montreal’s long-awaited blue line metro extension is moving into the underground phase. A massive 9.7-metre ...

The Hudson Tunnel Project is marking another major milestone as it nears a critical point in the $16 billion process. During its Aug. 20 board meeting, Gateway Development Commission announced that ...

Metrolinx shares updates on major transit projects, including the Ontario Line, Scarborough Subway Extension, and Yonge North Extension.

NORFOLK, Va. (WAVY) — Mary the tunnel boring machine broke through on the second tunnel Wednesday afternoon as part of the HRBT expansion project. Mary started working on completing the second tunnel ...

The Palisades Tunnel Project will construct the first mile of twin tunnels on the New Jersey side of the Hudson River. Early work, including pile driving and installation of monitoring instruments, is ...

A tunnel boring machine is making steady progress on a major water infrastructure project.