At 18 kilometers (11.2 miles), it’s nowhere near as long as the 50-kilometer (31-mile) Channel Tunnel, but in many other ways it’s bigger. The project will, in fact, be the world’s longest road and ...

Residents, design experts and transit advocates weigh in on whether Cincinnati should build a function subway in its ...

A long-awaited pedestrian tunnel in Ann Arbor is expected to be complete by this fall. The city announced construction will ...

An estimated 139 workers died during the construction of the Swannanoa Gap rail line, which includes a 1,832-foot-long tunnel. For 95 years, from 1880 to 1975, passenger rail ran from Biltmore Village ...

At 18 kilometers (11.2 miles), it’s nowhere near as long as the 50-kilometer (31-mile ... be the world’s longest road and rail tunnel, and the world’s longest immersed tunnel.