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Road Work & Maintenance

Sidewalk ConstructionRoad construction projects underway in Thunder Bay can result in road closures, detours and delays for drivers. Drivers should reduce their speed, be alert, watch for workers and drive with extra care in construction zones.

During 2016, 16 km of roads were resurfaced or reconstructed. As we upgrade our pavements we also upgrade streetlighting, traffic signals and our underground infrastructure. This included 6 km of watermain replacement or in-place rehabilitation, 2.5 km of sanitary sewer replacement or in-place rehabilitation and 4.3 km of new storm sewers. As part of our Pollution Prevention Control Program 0.5 km of combined sewers were separated in 2016.

In 2016, Thunder Bay’s Active Transportation Program was enhanced with new green lanes on Vickers Street, new crossride markings on Arundel Street and Hudson Avenue, new bike lanes on Gore Street, and changes to stop signs on Windsor Street from Algonquin Avenue to Rockwood Avenue.

The City of Thunder Bay is investing 34.7 million in 2017, on road and sidewalk rehabilitation, residential paving, sanitary and storm sewer and watermain repair/replacement, bridge and culvert work, and streetlight renewal.

Updated information is posted monthly, between May and October.

2017 Construction Project Map PDF (to be posted soon)  

Temporary street closures for events will be in effect:

  • Saul Laskin Drive from Bobby Curtola Drive North to Bobby Curtola Drive South, on Saturday, May 27, from 10 am – 1 pm, for the Walk for Alzheimer’s
  • Saul Laskin Drive from Bobby Curtola Drive North to Bobby Curtola Drive South, on Sunday, May 28, from 9:30 am – 3 pm, for the Walk to Make Cystic Fibrosis History
  • Saul Laskin Drive from Bobby Curtola Drive North to Bobby Curtola Drive South, on Friday, June 2 and Saturday, June 3, from 12 pm – 5 pm both days, for Thunder Bay Mining Day
  • Waverley Street from Red River Road to Banning Street; Waverley Street from Banning Street to Algoma Street; intersection of Secord Street and Park Avenue, on Friday, June 2, at 8 am until Saturday, June 3, at 10 pm for the George Jeffrey Children’s Centre Soapbox Races
  • West Lyon Boulevard from north main parking lot to Arundel Street (eastbound lane), from West Lyon Boulevard to East Lyon Boulevard, and East Lyon Boulevard from Arundel Street to Rita Street, on Saturday, June 3, from 9:30 am – 12 pm, for the Thunder Bay Metre Eaters June Classic Race
  • Saul Laskin Drive from Bobby Curtola Drive North to Bobby Curtola Drive South, on Sunday, June 4, from 8:30 am – 2 pm, for the Walk to Fight Arthritis
  • Chapples Drive, on Sunday, June 11, from 11:30 – 12 pm, for the Law Enforcement Torch Run
  • Bobby Curtola Drive from Marina Park overpass to parking lot, and Saul Laskin Drive from Marina Park Drive to parking lot, on Saturday, June 17, from 10 am – 6 pm, for Pride in the Park
  • Saul Laskin Drive from Bobby Curtola Drive North to Bobby Curtola Drive South, on Wednesday, June 21, from 9 am – 11 pm, for National Aboriginal Day

Road Work Ahead

The following areas are scheduled for or are currently undergoing road and other major infrastructure work that is expected to affect traffic.

Sewer & Watermain Work

  • Central Avenue, between Golf Links Road and Amber Drive will be closed to through traffic in both directions due to the construction of a new trunk watermain. The road will be closed for approximately five weeks.
  • First Avenue, between Fort William Road and Memorial Avenue will be closed to through traffic in both directions due to the construction of a trunk watermain, sewer work and road resurfacing. The road will be closed for approximately six weeks.
  • John Street, between High Street and Winnipeg Avenue will be closed to through traffic for the replacement of an existing watermain. The road will be re-opened in May.
  • Court Street, between John Street and Bay Street will be closed to all traffic for the reconstruction of the watermain and sanitary sewer. The road will be resurfaced and separated bike lanes added. The project will be completed by the end of July.

Road, Street Lighting & Sidewalk Improvements

  • Replacement of the High Street Retaining Wall will begin in June. High Street South between John Street and Bay Street, and Cornwall Avenue above High Street South will be closed to traffic during construction.
  • Road rehabilitation work has begun on Cumberland Street between Gibson Street and the Current River Bridge. Work includes new storm sewer and resurfacing of the street. During construction, traffic will be restricted to one lane in each direction.
  • A section of Copenhagen Road from the Trowbridge Falls Campground entrance extending north for 1.8 km, is scheduled for road rehabilitation. Watch for lane closures as the work proceeds.
  • Residential resurfacing work is scheduled to begin on Cuyler Street and Sunflower Street.
  • Crescent Avenue, from Logan Street to Bruce Street, will be under road and watermain construction. Local access only.
  • Sidewalk replacement projects on sections of Alberta Street, McIntosh Street, McLaughlin Street and McPherson Street will be underway. Some parking, driveway and local access restrictions may be encountered as the work proceeds.

The above list includes major, traffic-affecting construction. Other work, including sidewalk replacements and curb and gutter repairs, is scheduled for residential areas and other areas around the City. The schedule is subject to change.


Each spring, once the snow is gone, street sweeping on arterial and collector roads and downtown cores begins.

Line of Street SweepersThe cleaning process takes six to eight weeks. Once arterial routes are complete, sweeping efforts move on to residential streets. Sidewalks are swept along with the streets as crews move through the City. For fairness, each year the schedule for sweeping in residential areas is rotated. The City is divided into areas and it takes approximately six weeks to complete the sweeping of residential areas.

The City also repairs areas of sod that are turned up adjoining the curb in the course of winter roads maintenance. We welcome your input if you notice areas of concern. Inquiries may be sent to

Residential Street SWEEPING priority map

City residential areas will be cleaned in numerical order. The order in which residential areas are cleaned by City crews changes each year - the first neighbourhood this year will move to the bottom of next year's list, and all other areas will move up. Below are maps that show the 2017 street sweeping areas in numbered sequence.

2017 Residential Street Cleaning Priority Map - North  Adobe PDF, 1 page, 801 KB
2017 Residential Street Cleaning Priority Map - South  Adobe PDF, 1 page, 935 KB

Check out this short video on Street Sweeping Operations in Thunder Bay to get a better understanding of what streets are chosen based on cycles from year to year, why street sweeping is done and how it works.