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Britannia Road Corridor Improvements


Road Closure

The intersection of Fourth and Old Britannia Road is expected to re-open on December 7, 2023, as part of the Britannia Road Widening project. We will make every effort to complete the work as quickly as possible to minimize the impact.

For more information on this closure please review the November 3, 2023 Notice of Road Closure Update

About the project

Britannia Road is a critical east-west corridor in Halton Region that motorists rely on to get to work, school, retail and home every day. To accommodate growth, provide safe alternative transit options and improve traffic flow, Halton Region is making improvements to Britannia Road.

These improvements will be implemented in three Phases:

  • Phase 1 between Tremaine Road and Regional Road 25, complete.
  • Phase 2 between James Snow Parkway and Highway 407 ETR, currently under construction.
  • Phase 3 between Region Road 25 and James Snow Parkway, currently under construction.

Between Tremaine Road and Regional Road 25, complete.

Project #: 2667

You can now enjoy:

Widening from four to six lanes
Traffic signals
Environmental protection
Bike lanes
Multi-use pathways
Turn lanes
Sound walls

Project Details

Britannia Road cross-section

Phase 1

  • Status: Complete
  • Start: September 2019
  • Ends: February 2022
  • Project #: PR-2667

Phase 2

  • Status: Construction ongoing
  • Start: June 2021
  • Ends: December 2024
  • Project #: PR-3309A

Phase 3

  • Status: Construction ongoing
  • Start: June 2021
  • Ends: December 2024
  • Project #: PR-3309A

Read about the Britannia Road Transportation Corridor Improvements Municipal Class Environmental Assessment Study.

Project map


  • Phase 1 improvement area indicated by blue line
  • Phase 2 improvement area indicated by green line
  • Phase 3 improvement area indicated by orange line

Project Renderings

View of Britannia Road at railroad overpass

Improvements include:

  • Road widening
  • New roadway overpass
  • New sidewalk/multi-use pathway
  • New on-road bike lane

View of Britannia Road east of First Line

Improvements include:

  • Road widening
  • New on-road bike lane
  • New sidewalk/multi-use pathway
  • New landscaping

View of Britannia Road at Regional Road 25

Improvements include:

  • Road widening
  • New turn lanes
  • New sidewalk/multi-use pathway
  • New landscaping
  • New traffic signals


Phase 1 Timeline

  • 2014-2017

    Environmental assessment completed

  • 2014-2019

    Detailed design for Phase 1 completed

  • September 2019

    Phase 1 construction period begins

  • February 2022

    Phase 1 complete

What you can expect day-to-day

Britannia Road Corridor is a major east-west corridor that 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.

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:

  • 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 & 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 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.

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:

  • Phasing construction: Construction will be phased to allow for one lane in each direction to be maintained on Britannia Road. Emergency vehicle access will be maintained at all times.
  • Using electronic signs: Road signs will be on site to with up-to-date traffic impacts.
  • Reducing speed limits: To ensure safety, the speed limit has been lowered within the project limits.

Latest traffic updates and notices

Stay connected and up-to-date on the project

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:

Stay informed on Regional improvements happening in your community