Had you crossed the Francis Scott Key Bridge just a few weeks ago, as millions of motorists did before a wayward container ship struck it in the early hours of March 26, you’d have passed below a ...

Cable-stayed bridges may look similar to suspension bridges—both have roadways that hang from cables and both have towers. But the two bridges support the load of the roadway in very different ways.

After 95 years in service, a lifting bridge connecting New Hampshire and Maine needed to be torn down. The one that replaced it might look like the nearly century-old bridge, but it is equipped with ...