Staple Bend Tunnel

The Staple Bend Tunnel, about 4 miles (6.4 km) east of Johnstown, Pennsylvania, in a town called Mineral Point, was constructed between 1831 and 1834 for the Allegheny Portage Railroad. Construction began on April 12, 1831. This tunnel, at 901 feet (275 m) in length, was the first railway tunnel constructed in the United States. It is rock bored and stone lined.

It was designated a National Historic Landmark in 1994. It is now part of the Allegheny Portage Railroad National Historic Site, administered by the National Park Service.

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