Pennsylvania Turnpike Commission
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Blue Mountain Tunnel (Franklin County, Pennsylvania)
Built 1940Tunnel on Pennsylvania Turnpike/I-76Open to traffic
Laurel Hill Tunnel (Westmoreland County, Pennsylvania)
Built 1940Tunnel on Abandoned alignment of Pennsylvania TurnpikeCurrently used to test racecar aerodynamics by Chip Ganassi Racing. Closed to the public.
Rays Hill Tunnel (Bedford County, Pennsylvania)
Built 1940Tunnel on abandoned alignment of Pennsylvania TurnpikeUnofficially open to hikers and bicyclists
Sideling Hill Tunnel (Fulton County, Pennsylvania)
Built 1940Tunnel on Abandoned alignment of Pennsylvania TurnpikeUnofficially open to hikers and bicyclists