Brownsville, PA, United States
Dunlap's Creek Bridge. An integral part of the National Road, this was the first metal arch bridge in the United States, built 1836-39. Replacing several earlier bridges on this site, including an 1809 Finley suspension bridge, this 80-foot span was built of cast iron by the U.S. Army Corps of Engin
eers. Capt. Richard Delafield and Lieutenant George W. Cass oversaw construction.
Listen to the audio guide for Blue plaque № 28923 Free on WIP — starts by itself when you arrive, even with the screen off