The new steel bridge was built onto a sliding track that is coated with Teflon so it can slowly slide the 102 feet into position.

The humble bridge is one of the most common transportation structures humans use. In the U.S. alone, there are over 617,000 bridges at last count. Some of them are no longer than a few yards while ...

The Francis Scott Key Bridge in Baltimore was built over the course of five years, beginning in 1972. For the workers involved, it meant overtime pay and a chance to prove themselves on a giant ...