Butterley Tunnel
Butterley Tunnel is a 3,083-yard (2, 819 m) disused canal tunnel on the Cromford Canal below Ripley, in Derbyshire, England, opened to traffic in 1794. Along with Butterley Works blast furnaces, part of the canal tunnel and its underground wharf were declared a scheduled monument in 2013.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).