The Viger tunnel west-bound lane has re-opened.
The east-bound portion of the tunnel will remain closed for regularly-scheduled maintenance work until 5:00 Monday morning.
It was closed in both directions late Friday when inspectors determined a crack noticed in a concrete slab that makes up part of the Sanguinet overpass was far more serious than initially thought.
"We removed the concrete slab, we cleaned the area and re-inspected it to make sure everything was safe and the west-bound lane was re-opened this afternoon", said Sara Bensadoun of Transport Quebec.
In 2011 a concrete beam that supports the tunnel roof collapsed sending 15 tonnes of debris onto the roadway.
Bensadoun was asked about probable citizens' concerns as a result of what happened in 2011 and the most recent incident.
"This is not strucural. The structural integrity of the Viger tunnel or the Sanguinet overpass was not compromised. We're talking about an accident that happened on a construction site. So, basically, the workers, they just cut too deep and it was deep enough for us to close entirely the tunnel and do the emergency repairs", added Bensadoun.
About 100,000 motorists travel through the tunnel each day.
Photo credit: blog.fagstein.com