Before the Lærdal Tunnel was built, travel between Oslo, Norway's capital, and Bergen, its second-largest city, involved ...

In the 1930s, workers bored a 13-mile tunnel beneath Mt. San Jacinto. Here's a look inside the engineering feat that carries ...

Maybe that's because it's also one of the world's steepest roads, chiseled into the mountain by local villagers. The Guoliang Tunnel is located in the Taihang Mountains in China's Henan Province ...

That’s where the suggested private tunnel ... of interest, The Drive reported. “I think what amazes people is that a private individual can dig into the mountain,” Green Party official ...

Colorado’s Mountain Rail Project is moving forward, after Gov. Jared Polis officially recognized the state’s partnership with ...

When people drive past on the I-10 in Cabazon, few realize that a key piece of infrastructure lies hidden where the desert meets the base of the mountain. At the tunnel's exit point near San ...

Scott Reierson, an operations and maintenance supervisor for the Metropolitan Water District, leads a group on a tour, walking through a 16-foot-diameter tunnel toward the west portal of the ...