Squirrel Hill Tunnel
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The Squirrel Hill Tunnel is an interstate tunnel in Pittsburgh, Pennsylvania, United States. It serves as an eastern gateway to the city for I-376 and was completed in 1953 after 8 years of construction and at a cost of US$18 million 1953 dollars. At the time of opening it was the single largest investment by the State of Pennsylvania Transportation Department (PennDOT). It is 4,225 feet long and is a twin-bore tunnel with 8 cross passages.
In Pittsburgh driving lore, the tunnels are notorious, most notably for several accidents when tractor-trailers that are too tall to safely travel through the tunnel get stuck against the roof of the tunnel.
Due to an engineering project by students at Carnegie Mellon University, it is possible to hear FM broadcasting the entire way through the tunnel.
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