Bridge Meet By Bridgeview. Any visit to the Bridgeview Bed & Breakfast in Marysville, Pennsylvania involves be alert for an endless stream of trains crossing the Susquehanna River over the Rockville Bridge, the longest stone masonry arch railroad viaduct in the world. On November 11, 2020, Amtrak 43 (Pennsylvanian) NS 07T with AMTK 115 (P42DC) was heading geographically west, while at the same time as Norfolk Southern Corp Train 30A with NS 8062 (ES44AC) was going east. The Pennsylvania Department of Transportation is presently working with both railroads to add a second daily passenger round trip on this line.