On July 11, 2015 the WooFDriver and his crew took the WooFPAK on an exciting Midnight Mushing Tour of the Abandoned Pennsylvania Turnpike! The Pennsylvania Turnpike opened in 1940 and was known as the ‘Tunnel Highway’ because of its seven tunnels, one tunnel through each mountain. The tunnels were originally constructed for the South Pennsylvania Railroad, this reduced travel through each tunnel to single lane traffic in both directions. Due to congestion from the tunnels, in 1968 a new 13 mile stretch of Turnpike was constructed to bypass some of the ‘Tunnel Highway’.
Wikipedia’s Webpage to learn more