The Abandoned 13-Mile Section of the Pennsylvania Turnpike Left Behind in 1968 Pennsylvania Turnpike abandoned, Rays Hill Tunnel, Sideling Hill Tunnel, abandoned highway Pennsylvania, Pennsylvania tunnels, Pike 2 Bike, Pennsylvania history A 13-mile section of the Pennsylvania Turnpike, including two massive tunnels, was abandoned in 1968 when engineers bypassed it instead of widening it. The tunnels and roadway remain frozen in time, attracting explorers despite uncertain legal status. #pennsyl