Pennsylvania, US
The Gerloff Road Bridge Crossing Swamp Creek is a historic Pratt through truss bridge located near Zieglerville in Montgomery County, Pennsylvania. The bridge was built in 1888, by the Phoenix Bridge Co of Phoenixville, Pennsylvania. It has a single 135-foot-long (41 m) span. The bridge crosses Swam
p Creek. It was listed on the National Register of Historic Places in 1988.
Listen to the audio guide for Bridge in Upper Frederick Township Free on WIP — starts by itself when you arrive, even with the screen off