Concrete slab collapses in Ville-Marie tunnel

A slab of concrete fell onto the Ville Marie Expressway on Sunday morning. A beam fell onto the eastbound side of the highway around 9 a.m. No one was injured.

The Ville Marie tunnel is used by more than 100,000 cars every weekday.

The tunnel will remain closed between De La Montagne and Panet streets.

Engineers are studying the structure and need to determine whether emergency repairs are required. They are also trying to figure out what caused the collapse.

Mayor Gerald Tremblay said this incident is no reason to panic, but acknowledged that infrastructure problems in the city are piling up. Quebec Transport spokesperson Caroline Larose said the tunnel will not be reopened until the agency is sure it is safe.