Driving into an underwater tunnel can catch you off guard. One moment you’re in open daylight, and then the road dips and you’re enveloped by concrete, headlights flickering off tiled walls. The sound ...

Over 200 underwater bridge tunnels exist for vehicular traffic around the world, providing connectivity between cities. Once constructed, however, these tunnels are difficult to monitor and maintain, ...

Traveling Norway's E39 highway is often an unforgettable, but arduous adventure. The route, which spans nearly 1,100 kilometers (683 miles), is an engineering marvel, and has been constructed in a ...

Every day, long-haul truckers and commuters pass through the George Wallace Tunnel, briefly slipping away from daylight and 40 feet underwater, until reemerging into downtown Mobile, Alabama. Since ...

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SAN FRANCISCO (KGO) -- It may not have the post card cache of the famous bridges, but the Transbay Tube that whisks BART trains under the bay carries nearly 25,000 people at peak commute hours. Built ...

Harvey Tunnel — Harvey Canal bridge piers in construction — — Piers for a new high rise bridge over the Harvey Canal on the West Bank are rising above the Harvey Tunnel. The new bridge will become the ...