Boring Test Tunnel

The Hawthorne test tunnel, or Boring test tunnel, is a 1.14 miles (1.83 km) tunnel in Hawthorne, California, intended for testing “tunneling and public transportation systems”, constructed between 2016 and 2018. It was accompanied by a mile-long aboveground tube on nearby Jack Northrop Ave designed for testing hyperloop and loop-based transportation, which was used for student competitions in 2018 and 2019 before being dismantled in 2022.

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

Other tunnels in United States

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