Pottstown, PA, United States
First Iron Bridge. The first iron truss bridge in the U.S. was built in 1845 in the Philadelphia & Reading Railroad blacksmith shop, just south of here. It was designed for the railroad in 1844 by Richard B. Osborne.
Listen to the audio guide for Blue plaque № 29291 Free on WIP — starts by itself when you arrive, even with the screen off