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William Halton Parkway Extension Project


To service growth and traffic demands, and provide new travel options, Halton Region is extending William Halton Parkway (Regional Road 40) to create a new east-west corridor from Bronte Road (Regional Road 25) to Ninth Line (Regional Road 13).

Construction of the new corridor is happening in two phases and Phase 1 started in 2018. Residents and motorists can expect to see a new, complete corridor with the following improvements between Third Line and Ninth Line:

  • a new roadway;
  • four new roundabouts at Fourth Line, Burnhamthorpe Road West, Sixth Line and Ninth Line;
  • new bridge over Sixteen Mile Creek;
  • new multi-use pathways;
  • new on-road bike lanes;
  • new watermains and wastewater mains to service growth in the area; and
  • new stormwater management ponds.


Location: Town of Oakville

Project Type: Road, Sewer, Water

Construction Start:
Phase 1 - Sixth Line to Ninth Line:
Phase 2 - Third Line to Sixth Line:

Construction End:
Phase 1 - Sixth Line to Ninth Line:
Phase 2 - Third Line to Sixth Line:
*Subject to construction funding

Project Number:
Phase 1 - Sixth Line to Ninth Line:
PR-2538 / PR-2263D
Phase 2 - Third Line to Sixth Line: 

Project Status:
Phase 1 - Sixth Line to Ninth Line:
Phase 2 - Third Line to Sixth Line:

Project Benefits

  • New roadway
  • Multi-use pathways
  • Roundabouts
  • Bike lanes
  • Traffic signals
  • Sidewalks
  • Bridges
  • Sewer back up prevention
  • Maintaining clean drinking water

Project Updates

Traffic Updates:
  • Speed limit on Trafalgar Road temporarily reduced to 60 km/h between Burnhamthorpe Road and 407 ETR.
  • There will be increases in truck traffic on Ninth Line between Dundas Street and Lower Base Line. Please be aware and use caution while driving.
No detours to traffic at this time.


To learn more about different sections of this project and other Regional improvement projects, use our interactive map, email or call 311.


Resident Impact

To help you plan ahead for construction activity, please read the project related information below. Wherever possible, mitigation plans will be put in place to minimize disruptions.

  • Traffic delays –The project may cause traffic delays, lane shifts or lane restrictions. We will make every effort to minimize any potential inconvenience and provide you with advance notice when disruptions must occur. Access for emergency vehicles (Fire, EMS and Police) will be maintained at all times.
  • Driveway access During the project, direct access to your driveway may be restricted for short periods of time. You will be notified in advance of any planned restrictions.
  • Waste collection Your garbage and recycling will continue to be picked up on the regular scheduled day. It is the contractor’s responsibility to move your garbage and recycling to a location where our collection vehicles can pick them up. Please mark your house number on your containers or bins to help with identification.
  • Mail delivery – We do not anticipate any changes or delays to mail delivery. In the event that there are any changes, you will be notified in advance.
  • Truck traffic – At times you will notice increased truck traffic in the construction area. Please be aware and use extra caution while driving, and while exiting your property.
  • Dust and mud There may be increased levels of dust and mud near the work site. The contractor is required to manage these impacts.

Spatial Details

William Halton Parkway from Third Line to Ninth Line (RR13)


Project Images

Please click on the map to enlarge

Additional Information

Municipal Class Environmental Assessment Studies

Building a Better Halton

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