Lane closures begin this week for Highway 400 bridge work

Starting Tuesday, lane closures will begin between Anne Street and Hart Drive in Barrie.

Drivers in Barrie should prepare for lane closures on Dunlop Street beginning Tuesday as another phase of a major Highway 400 bridge replacement project gets underway.

The Ontario Ministry of Transportation is advancing the final phase of its multi-year project to replace three bridges on Highway 400 at Dunlop Street, Anne Street and Sunnidale Road.

The work includes construction of a new, expanded bridge at Dunlop Street and upgrades to the interchange to support future widening of the highway.

Lane closures anticipated

Starting Tuesday, crews will return to Dunlop Street with lane closures between Anne Street and Hart Drive. The inside lanes will be closed, with traffic shifted to the outside lanes in both eastbound and westbound directions.

On Wednesday, the westbound curb lane on Dunlop Street will close, along with the northbound left-turn lane on Hart Drive.

Come Thursday, the eastbound curb lane on Dunlop Street will close, along with the northbound right-turn lane on Hart Drive.

The city says daily closures will begin at 6 a.m. and be removed at the end of each work day.

The overall project is expected to be completed in fall 2028.

Once wrapped, Highway 400 will have a six-lane configuration, with improvements designed to accommodate future traffic growth through the corridor.