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. SE corner, High & York Sts., Pottstown, PA by Pennsylvania Historical and Museum Commission Colour: blue Wikimedia: Flickr: Google Streetview OpenStreetMap
