A bridge would be the simplest and cheapest path across the Long Island Sound, though it also comes with "significant" ...

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, ...

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 ...

Muography can provide a noninvasive approach to examining subterranean infrastructure, and in the Journal of Applied Physics, researchers apply this technique to the Shanghai Outer Ring Tunnel, which ...