Connaught Tunnel
The 133rd longest tunnel in the world
The Connaught Tunnel is in southeastern British Columbia, on the Revelstoke–Donald segment. The 5.022-mile (8.082 km) tunnel carries the Canadian Pacific Kansas City (CPKC) main line under Mount Macdonald in the Selkirk Mountains. The tunnel, opened by the Canadian Pacific Railway (CP) in 1916, replaced the previous routing over Rogers Pass.
Tunnel data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).