Orange and Alexandria Railroad Bridge Piers

The Orange and Alexandria Railroad Bridge Piers are the historical remains of a bridge that carried the Orange and Alexandria Railroad across Bull Run between Fairfax and Prince William Counties, Virginia. The railroad, and this bridge location in particular, were of strategic interest to both Union and Confederate forces during the American Civil War. The bridge was rebuilt at least seven times during the war years. The piers are located just south of a modern railroad bridge.

The piers were listed on the National Register of Historic Places in 1989.