Did you know Pennsylvania is home to the longest stone arch bridge in the world? Built by the Pennsylvania Railroad, the Rockville Bridge opened on March 20, 1902. It replaced an iron bridge built ...

The Rockville ... The bridge is made of 220,000 tons of stone that took 800 workers two years to build under the direction of William Henry Brown, chief engineer of the Pennsylvania Railroad.

Susquehanna Township (WHTM) Stretching across the Susquehanna River, a few miles north of Harrisburg, is an engineering marvel-the Rockville ... bridge erected at this site. The Pennsylvania ...