Note: Above HAER Documentation is for a different Iron Haupt bridge. HAER Did not document the two bridges described below, so this is the best existing formal documentation of this bridge type.
Two truss bridges sit here in storage at the Railroad Museum of Pennsylvania, awaiting restoration and reuse. Both were presumably built in the 1850s, and both are Haupt truss bridges with cast iron for compression members. They are two of the oldest metal bridges in the United States, and they represent the very earliest period of metal bridge construction in the United States, which was a period of prototypical, experimental design.
The first bridge to arrive here in storage was the Ronks Bridge, which was originally built in the 1850s in an unknown location for railroad use. When its 60 ton weight limit became insufficient for increasing train weights, it was moved in the 1870s or 1880s to serve as a private farm field access bridge over a railroad line. In 2002, the bridge was replaced and the trusses were moved to the museum, where they have remained. The estimated location of this bridge when it was near Ronks is 40.02826 -76.17328.
At a later date, another iron Haupt truss bridge that was located on Church Street in Ardmore, Pennsylvania over a railroad line was replaced, and this span was also given to the museum, and placed in storage. This bridge, like the Ronks Bridge, likely originally was a railroad bridge that was reused as a highway over railroad bridge on Church Street. The location of this bridge when it was on Church Street is 40.00574 -75.28503.
This bridge is tagged with the following special condition(s): Cast Iron
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