At 890 feet over the Colorado River, it is the world’s highest concrete arch bridge and America’s second-highest, also known as the Hoover Dam Bypass Bridge.

The new bridge will include two lanes in each direction, with 12-foot shared-use paths on each side. It will sit on concrete piers that will frame the river.

A plaque at the halfway point mentions the design pattern date as 1867, but records in Nashville show the bridge construction ...

The historic open-spandrel concrete arch U.S. 40 bridge over the Conococheague Creek, west of Hagerstown, on April 17, 2025.