Totley Tunnel
The 195th longest tunnel in the world
Totley Tunnel is a 6,230-yard (3.5 mi, 5.7 km) tunnel under Totley Moor, on the Hope Valley Line between Totley on the outskirts of Sheffield and Grindleford in Derbyshire, England.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).