After years of hype and promises to wipe out the scourge of traffic — but with only a Las Vegas tourist attraction to show for it — Elon Musk’s tunneling startup says it’s set to begin digging its ...

The Gateway Development Commission marked a major milestone for the Hudson Tunnel Project, announcing at its Dec. 15 board meeting that manufacturing and factory testing of the first two tunnel boring ...

A $360 million Manchester, N.H., stormwater tunnel project is preparing for the arrival on site of a 281-ton (dry) tunnel boring machine that weighs more than three times a 73.6-ton M1 Abrams tank.

The third — and final — tunneling contract for the Gateway project has been awarded. The $1.28 billion contract was awarded to a joint venture of firms to design and build two parallel tubes under the ...