In construction zones, reduce your speed while driving, stay alert, and watch for workers. 

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Check out the Construction Projects page for a map and full list of this season's capital projects.

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A photo shows a close-up image of a roadway with freshly-painted white lines

Lanes to be Reduced on Arthur Street for Line Painting

Posted on Thursday, June 25, 2026 02:54 PM

Lane reductions will be in place on Arthur Street West between Highway 61 and Parkdale Boulevard starting on Friday, June 26 to allow for line painting.

At least one lane of traffic will remain open in each direction during the work, which is expected to take approximately two days to complete, depending on weather conditions.

For everyone’s safety, motorists are reminded to expect traffic delays in the area and to drive with caution near construction zones. The City thanks residents and...

A photograph shows the Pacific Avenue Bridge as seen from the East End

Pacific Avenue Overpass to Close for Construction Season

Posted on Monday, June 22, 2026 02:47 PM

The Pacific Avenue Overpass will be closed for the duration of the 2026 construction season starting on Monday, June 29 to allow for major rehabilitation work on this important transportation corridor.

During the closure, motorists will be detoured via the Main Street Bridge and Island Drive. Pedestrians can use the East End pedestrian underpass, located near the intersection of Simpson and Rowand streets. 

Regular security patrols of the pedestrian underpass will be in place for the duration of...

A photo shows a road closed for construction, with a City of Thunder Bay pylon in the foreground.

Section of Oliver Road to Close for Storm Sewer Work

Posted on Monday, June 22, 2026 11:04 AM

Oliver Road will be closed to through traffic between Dalton Avenue and Enniskillen Avenue beginning on Monday, June 22, to allow for storm sewer replacement work.

During the closure, detour signage will be in place, with traffic routed around the construction zone via Balmoral Street, John Street, and Ray Boulevard. The work is expected to take approximately six weeks to complete.

Sidewalks between Dalton Avenue and Enniskillen Avenue will be closed during construction. The Oliver Road Community...

A photograph shows a construction site with a City of Thunder Bay pylon in the foreground

John and Balmoral Intersection to Close for Repaving

Posted on Wednesday, June 17, 2026 12:20 PM

The John Street and Balmoral Street intersection will be closed intermittently to traffic beginning on Thursday, June 18 to allow for repaving work.

The closure is expected to last approximately two days. Motorists are advised to use alternative routes during this time.

This work supports the City’s ongoing commitment to maintaining reliable transportation infrastructure that keeps Thunder Bay connected and supports future growth.

During construction:

  • While work is being completed on the John...

A photograph shows a city street with road closed signs in the foreground

Turn Lane at Harbour Expressway & Golf Links Intersection to Close

Posted on Wednesday, June 17, 2026 12:06 PM

The eastbound left turn lane will be closed to traffic at the Harbour Expressway & Golf Links Road intersection beginning Thursday, June 18 to support roadway improvement work.

The closure is expected to last two days, reopening the evening of Friday, June 19. Work will then continue within the median area at this location. Please use alternative routes during this time.

The work includes construction of an additional left turn lane on the Harbour Expressway to improve traffic flow in this area.