First Iron Bridge

First Iron Bridge is a Pennsylvania historical marker in Montgomery County, dedicated 1953.

SE corner, High (SR4031) & York Sts.

Get directions ↗Start a road trip Historical trails

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.

TodayHistorical map

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Historical maps covering this location

1834 · New Jersey (H. S. Tanner, 1834) (Barry Lawrence Ruderman Map Collection, Stanford Libraries)
1845 · New Jersey. (David Rumsey Map Collection, Stanford Libraries)
1847 · New Jersey (H. S. Tanner, 1847) (Barry Lawrence Ruderman Map Collection, Stanford Libraries)
1848 · Pennsylvania. (David Rumsey Map Collection, Stanford Libraries)
1872 · Delaware, Montgomery, Bucks counties. (David Rumsey Map Collection, Stanford Libraries)

Pennsylvania, 1848, covering the location of First Iron Bridge, with a pin at the marker's coordinates — Pennsylvania, 1848, covering this location. David Rumsey Map Collection, Stanford Libraries. The pin is ours, placed from the marker's coordinates.

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Marker data: Pennsylvania Historical and Museum Commission via data.pa.gov

First Iron Bridge

Historical maps covering this location

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