Connaught Tunnel is supplemented by the Mount Macdonald Tunnel.
The 5.022 mi tunnel carries the Canadian Pacific Railway main line under Mount Macdonald and replaced the railway 's previous routing over Rogers Pass , which had been struck by several deadly avalanches since its completion in 1885.
It is notable as the location of the Canadian Pacific Railway 's Connaught and Mount Macdonald Tunnels.
