A historic bridge built more than 200 years ago in southwestern Pennsylvania has been closed off to the public after officials said they cannot guarantee the structure’s stability. The Great Crossings ...

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, ...

Add Yahoo as a preferred source to see more of our stories on Google. As Massachusetts drivers take on their daily commutes, all eyes are on the road. But one MassDOT unit isn’t looking at the roads ...