Kittatinny Mountain Tunnel

The Kittatinny Mountain Tunnel is a 4,727 ft (1, 441 m) tunnel which carries the Pennsylvania Turnpike through Kittatinny Mountain in Franklin County, Pennsylvania. One of seven tunnels completed for the turnpike, and one of four still in use today, it is located 600 feet (180 m) west of the Blue Mountain Tunnel, separated by the Gunter Valley.

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Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).

Other tunnels in United States

Delaware Aqueduct United States · 137 km Päijänne Water Tunnel Finland · 120 km Orange–Fish River Tunnel South Africa · 82.8 km Ishikawa Tunnel Japan · 78.5 km Brenner Base Tunnel Austria · 64 km Mont d'Ambin base tunnel France · 57.5 km Gotthard Base Tunnel Switzerland · 57.09 km Hong Kong–Zhuhai–Macau Bridge China · 55 km