This covered bridge at Philippi, built in 1852, is the oldest and longest covered bridge in West Virginia, and only 2-lane covered bridge in the US federal highway system.

The Philippi Covered Bridge is the oldest and longest covered bridge in West Virginia and one of only two remaining in Barbour County. It is also the only covered bridge serving the US Federal Highway system (U.S. Route 250). It was placed on the National Register of Historic Places in 1972.

https://www.reddit.com/r/interestingasfuck/comments/fv0gj9/this_bridge_built_in_1852_is_the_only_2lane/
https://en.wikipedia.org/wiki/Philippi_Covered_Bridge