Rockville Bridge
The longest stone masonry arch railroad bridge in the world, one mile to the south, was built 1900-02. With forty-eight arches, it has a length of 3,820 feet. This was the third bridge constructed here by the Pennsylvania Railroad. A wooden structure had been built 1847-49, followed by an iron bridge in 1877.
Marker is at the intersection of North State Road (U.S. 11/15) and Myrtle Avenue, on the right when traveling south on North State Road.
Courtesy hmdb.org
