The Armerford Bridge is located approximately one-half mile west of Dilltown, PA spanning Blacklick Creek. At 225 feet it is the longest bridge on the Ghost Town Trail.. Constructed in 2009 the bridge features a three arch design and riding a bicycle over it is a unique experience. The original railroad bridge at this location was washed away during the 1977 Flood. The bridge is named for the former small village of Armerford and the nearby coal mine.