Construction is set to begin again on the Thorold Tunnel which means commuters may want to look for alternate routes.
The MTO says construction on Highway 58 westbound will begin August 17th and run until November 14th
The westbound tunnel will be reduced to a single lane.
As well between August 1st and August 27th there will be 18 overnight tunnel closures between 10 pm and 5 am.
Work includes sealing cracks, upgrading lighting and installing a snow melting system.