The Longest Tunnel In Connecticut Has A Truly Fascinating Backstory

Although the Pequabuck Tunnel aka Terryville Tunnel, nicknamed “the mile-long tunnel” technically measures in at under a mile at 3,580 feet long (0.68 miles), it is considered the state’s longest tunnel. Built during the early 1900s, in order to help correct the steep grade that made it especially difficult to haul freight through the hilly terrain, the tunnel has a fascinating history that gives a bit of insight into the railroad industry during the 20th century.

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There are many stories about the construction of the Pequabuck Tunnel. These range from fascinating finds of gems during the tunnel construction to stories about hauntings. One thing is sure, this a tunnel that continues to intrigue the imagination.

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