Update 8:08 p.m.: O.P.P. report the westbound lanes have reopened to traffic.
CORNWALL — A section of the westbound lanes of Highway 401 from Cornwall to Long Sault were shut down due to an issue with an overpass.
SD&G O.P.P. Const. Tylor Copeland told Cornwall Newswatch construction workers were concerned with some loose guardrails that had the potential to fall on passing vehicles underneath the overpass. (Sentence has been clarified from an earlier version to show nothing fell on the highway).
Copeland said the workers were waiting for a welder to get on site.
Cruickshank Construction crews were still working on site, moving metal into place with a crane at the Avonmore Road overpass.
It’s the latest overpass undergoing a complete replacement.
Traffic is being detoured via County Road 2 from Brookdale Avenue in Cornwall to Moulinette Road in Long Sault.
While there’s no estimated time the westbound lanes will reopen, it’s believed they will be closed for a few hours.
Eastbound Highway 401 traffic is unaffected.