There are no closures in effect there on the Waze map right now.
According to the city, there is one lane available in each direction on Jarry: http://ville.montreal.qc.ca/pls/portal/docs/PAGE/M_CHANTIER_FR/MEDIA/DOCUMENTS/A4-223801_JARRY%20EST%20(17-10-2016)F.PDF
Berri is closed off, but Waze has no ability to close a junction, only segments. I have detached Berri from Jarry, which should help within a few days.
At 16:45 today I was directed, again, to take Berri through Jarry. :-/
Like I said, it will take a few days to update.
Hi Webs,
Sorry I missed the last three words from your initial message 
I’ve looked into the fix and I’m affraid it might cause new problems in a few days. For instance, I don’t understand why Berri was detached from Jarry South (East) of Jarry. B->A on Berri South (East) of Guizot should not have a closure.
I could contribute if you were to unlock those segments (although I understand you’re afraid of the damage that could be induced by the temporary unlock)
The document from the city shows that Berri is blocked from Jarry in both sides. Is that not accurate?
I don’t mind lowering the level but I’m on mobile at the moment.
It’s not. At least, it’s not yet accurate. I guess they’ll switch the roadwork to the other side at some point, but as of now it’s opened.
I’ll be closely monitoring this intersection, it affects my way back home multiple times a week.
I set Jarry and Berri to level 1. The closure will expire Saturday.