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Dundas Street Improvements


About this project

Improvements will address future traffic demands and provide safe travel options for motorists, pedestrians and cyclists and include:

  • Widening from four to six lanes
  • Road resurfacing
  • New multi-use paths and sidewalks
  • New bus stops and shelters
  • Upgraded stormwater management infrastructure
  • New traffic signals and street lights
  • New on-road bike lanes
  • Environmental protection measures
  • New bridges

Equipment for the Regional Advanced Traffic Management System (ATMS) will also be installed. The ATMS is a traffic signal control system that enables real-time signal adjustments to save time, reduce emissions and improve safety for motorists.

Project details

  • Status: Construction/Design
  • Start: 2021
  • End: 2029
  • Project #: PR-2671B/PR-2672B/PR-2550/PR-3200/PR-3207B

Improvements phases

Phase 1

  • Appleby Line to Tremaine Road (Contract 1: PR-2672B) – Construction started in Spring 2021
  • Tremaine Road to Bronte Road (Contract 2: PR-2671B) – Construction started Fall 2024

Phase 2

  • Appleby Line to Northampton Blvd. (PR-2550A) – Anticipated construction start 2027
  • Northampton Blvd. to Guelph Line (PR-3200A) – Anticipated construction start 2027

Phase 3

Guelph Line to east of Kerns Road (PR-3207B) – Anticipated construction start Spring 2026

Project renderings

Explore the images below for what you can expect to see once improvements are complete.

Cross section

Cross section of Dundas Street Improvements from Oakpark Boulevard to Brant Street showing the bike path, sidewalk and car lanes.
Dundas Street Phase 1 cross-section

Phase 1 (Appleby Line to Bronte Road)

View of westbound Dundas Street, between Sutton Drive to Appleby Line.
View of westbound Dundas Street, between Sutton Drive to Appleby Line.

Improvements include:

  • road widening
  • new bike lanes
  • new multi-use paths with barriers
View of eastbound Dundas street, between Sutton Drive and Tremaine Road.
View of eastbound Dundas street, between Sutton Drive and Tremaine Road.

Improvements include:

  • road widening
  • new bike lanes
  • new multi-use paths
View of westbound Dundas Street at Tremaine Road intersection.
View of westbound Dundas Street at Tremaine Road intersection.

Improvements include:

  • road widening
  • new bike lanes
  • new multi-use paths
  • new bus shelter
View of eastbound Dundas Street, at Colonel Williams Parkway
View of westbound Dundas Street, at Colonel William Parkway

Improvements include:

  • road widening
  • new bike lanes
  • new multi-use paths
View of Tansley Bridge, located over Bronte Creek.
View of Tansley Bridge, located over Bronte Creek.

Improvements include:

  • road widening
  • new lookout points
  • new multi-use paths with barriers
  • new bike lanes

Project map

Project Timeline

Phase 1 Timeline

2009 – 2015

Environmental Assessment completed.

2016 – 2021

Detailed design completed for Phase 1.

Spring 2021

Construction start for Phase 1.

2027

Anticipated project completion for Phase 1.

Phase 2 Timeline

2018 – 2026

Detailed design anticipated to be completed for Phase 2.

Phase 3 Timeline

2021 – 2025

Detailed design anticipated to be completed for Phase 2.

What you can expect day-to-day

Dundas Street is a major east-west corridor that many residents and motorists rely on to get to work, school, home and retail every day. Halton Region is making every effort to minimize the disruptions and help you plan ahead for construction activity the extension will create.

Learn more about what to expect day-to-day, our mitigation plans and how to stay connected on the project.

I'm a resident or business in the area

Advance notice of any service disruption or construction impacts will be provided to residents in-person, through letter, email and website updates.

Below are some impacts you may experience:

  • Night work: Night work is required as part of this project. We will provide advance notice of any change in work hours.
  • Dust and mud: There may be increased levels of dust and mud near the work site. The contractor is required to manage these impacts.
  • Noise: You may experience noise as a result of construction. We will schedule work in accordance with local noise by-laws.
  • Tree pruning and removals: Due to the road widening, certain trees will either be pruned or removed. This work may happen shortly to allow for the utility relocations to occur. New trees will be planted along the project corridor once construction has completed.
  • Truck traffic: You will notice increases in truck traffic around the ongoing work. Please be aware and use extra caution while driving.
  • Sidewalk access: There may be some sidewalk closures during construction. Pedestrian detour routes will be implemented.
  • Vibration: You may experience some vibration due to ongoing work. As a precaution, we recommend that you remove or secure objects on shelves and walls.

I use this road regularly

Advance notice of any closures or restrictions will be available through letter, email, social media, road signs and website updates.

The following mitigation strategies have been put in place to minimize the impact on traffic and travel:

  • Widening one side of the road at a time: This allows two lanes of traffic to continue in each direction.
  • Reducing speed limits: To ensure safety, the speed limit will be 60 km/h, and reduced to 50 km/h in some areas.
  • Using electronic road signs: Road signs will show up-to-date travel times.
  • Coordinating public transit: Halton will coordinate with Burlington Transit and Oakville Transit to ensure transit users have the latest information.

Bronte Creek restoration

In addition to the improvements to Dundas Street, Halton Region and Conservation Halton will be working together to restore the banks and valley wall of Bronte Creek, north of Dundas Street. The combination of the bank slope and the river movement have resulted in significant erosion of the valley wall of Bronte Creek.

This restoration will allow for native plant species to take root and contribute to long-term bank stabilization, and reduce the potential for continued failure of the slope. The native species will provide improvements for the Silver Shiner fish habitat by supplying nutrient inputs, adding channel diversity, providing nearshore cover and protecting habitats for endangered and at-risk wildlife, including bird and bat species.

Latest traffic updates and notices

Traffic updates

Night work will begin on Dundas Street from west of Tremaine Road to Colonel William Parkway/Zenon Drive, on Monday, May 5, 2025, and is anticipated to be completed by October 31, 2025. This work is scheduled to occur Monday to Friday, including Friday night into Saturday morning. During this time, traffic may be reduced to one lane in each direction.

The work is weather dependent, and any unforeseen changes will be communicated in advance on this webpage.

Sign up for email updates on Regional improvements

Stay up-to-date

Halton Region has a dedicated Construction Ambassador for this project who will be available to meet with residents and businesses to address any questions or concerns.

You can also stay connected by:

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