It’s not just overpasses. The McGill metro was evacuated this afternoon after work on the de Maisonneuve bike path apparently caused a leak into The Bay next door and that led to the discovery of a large crack in the ceiling.
(The media is describing this as everything from a “crack” to a “depression” to a “cave-in”, but have settled on “crack” and “threat of collapse”)
Service on the green line is shut down between Berri and
Atwater Lionel-Groulx. Alternative bus service is being setup (Eastbound on Ste. Catherine, Westbound on René-Lévesque), but during rush-hour with a major artery closed it’s probably faster to walk across downtown. Trains have been added to the Orange Line to help compensate.
The metro is expected to reopen on Monday if there’s no risk of collapse of the tunnel.