Here is the other side of the tunnel and bridge between Layton and Perryopolis, Pa. The bridge was originally a railroad trestle and was converted to auto traffic. Here is a clip on Youtube of the drive over the bridge and through the tunnel: www.youtube.com/watch?v=-T1vjgUhXW8 Then there's this: www.youtube.com/watch?v=5AZO4z_8OzA And PennDOT's plans to fix the bridge: www.penndot.pa.gov/RegionalOffices/district-12/Constructi...