The Regional Municipality Of York

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Major Mackenzie Drive: Highway 400 to Highway 50

Transforming Major Mackenzie Drive

Section 3, proposed rendering shows how the intersection and bridge will align with the future Major Mackenzie Drive.

The Regional Municipality of York is investing in building a safe, efficient and reliable Regional transportation network for all users. Improvements to Major Mackenzie Drive from Highway 50 to Highway 400 in the City of Vaughan are underway to accommodate growth, improve traffic flow and provide public transit connections and more travel options for all.

Improving tra­ffic flow by:

  • Widening Major Mackenzie Drive to six lanes
  • Providing a connection to the future Highway 427 extension
  • Realigning a portion of Major Mackenzie Drive between the Canadian Pacific Railway tracks and Highway 27 to provide a continuous connection across Highway 27

Infrastructure improvements:

  • Building four new bridges including a 150-metre bridge over the Humber River and a bridge over the existing level crossing of the Canadian Pacific Railway tracks
  • Replacing old culverts with larger structures

Meeting the needs of our communities and environment by:

  • Installing a multi-use path, sidewalks and street lighting
  • Improving intersection accessibility
  • Installing wildlife fencing and wildlife culverts between Islington Avenue and Pine Valley Drive

Graphic map showing road construction area highlighting the four sections on Major Mackenzie Drive. For a detailed description of this map please call 1 877 464 9675 extension 75923.

Construction Update

Section 1: Pine Valley Drive to Highway 400

  • Construction is complete

Photo Section 2: Construction taking place on the south side of the existing roadway.

Photo Construction progress on the Humber River bridge.

Section 2: Islington Avenue to Pine Valley Drive

  • Construction is underway and is anticipated to be completed by fall 2021. During the first stage of construction tra­ffic will continue to use the existing lanes, as construction will commence south of the existing roadway. In the coming months you will see:
    • Topsoil removal and roadway excavation
    • Installation of storm sewers
    • Bridge construction at the East Humber River and Purpleville Creek
    • Installation of wildlife culverts

Major Mackenzie Drive will remain open to traffic during construction and access to Islington Avenue and Pine Valley Drive will be maintained; however, temporary lane closures may be required between 9:30 a.m. and 3:30 p.m. for construction.

Photo The intersection of Major Mackenzie Drive and Highway 27 raised to match the level of the Humber River bridge.

Section 3: Canadian Pacific Railway tracks to Islington Avenue

  • Road work between Highway 27 and Islington Avenue will be substantially completed this year, including the intersection at Highway 27. Final paving, painting of lane markings and landscaping will be completed in 2020. A water main was installed last winter, located under the future south boulevard
  • Raising the intersection of Major Mackenzie Drive and Highway 27 to match the level of the Humber River bridge was completed this summer. The bridge height was determined by the need to allow the river flood waters to pass underneath
  • The temporary Major Mackenzie Drive detour is still in place and will be for at least two years. This is required to build the bridge over the Canadian Pacific Railway tracks. This spring and summer, large amounts of soil were placed to form the road leading up to the future bridge.It could take up to a year for the ground to settle, after which the bridge construction can begin
  • Construction is scheduled to be completed in 2021

Photo Large amounts of soil placed to support the future bridge over the Canadian Pacifi c Railway tracks.

Section 4: Highway 50 to Highway 427 extension

  • Design will be completed by the end of the year and utility relocation will commence in January 2020
  • Construction is expected to begin in spring 2020 and is scheduled to be completed by the end of 2020

Photo Section 2: Islington Avenue to Pine Valley Drive.

Natural Environment

The natural environment plays a large role in the assessment, planning and design with all Regional construction projects. The Region worked closely with many approving agencies to get the necessary permits to undertake the improvements to Major Mackenzie Drive from Highway 50 to Highway 400. Through the permitting process, they have all provided input on how we address the environmental aspects of the project.

The removal of trees and wildlife habitat is required to undertake the project within the Pine Valley Drive to Islington Avenue corridor, however, the project has many positive features, including:

  • East Humber River – The existing bridge has an 18.0m wide opening underneath. The new bridge has a 76.0m wide opening, allowing improved water flow during large rainfall events and better wildlife and pedestrian passage
  • Purpleville Creek – The existing structure is a series of four 3.6m wide concrete culverts. The new structure is a bridge with a 40.0m wide opening, also greatly improving water flow during large rainfall events and is a large improvement for wildlife passage
  •  Wildlife Crossings – The Region will be installing three 3.0m wide concrete culverts for wildlife passage. There are currently no existing wildlife crossing structures. Additionally, wildlife fences will be installed along the north and south sides of Major Mackenzie Drive to direct wildlife to cross at the three wildlife culverts or the two bridges. These measures should reduce wildlife mortality and facilitate habitat connections across the road
  •  Tree Removal – Trees that are removed will be replaced at approximately a 3:1 ratio with new trees. The Region will plant as many trees as possible within the existing road allowance and the rest will be replaced on other Region or TRCA land. The trees being removed are utilized for lumber, firewood or bedding material at farms, depending on the quality of the wood removed
  •  Roadway Stormwater – The stormwater from the roadway is collected and treated to remove the contaminants and sediment and also cooled before entering the existing water course

The Region pays strict attention to bird and fish breeding seasons when doing work by not cutting down trees within the bird nesting season (unless a biologist confirms nests are not present and not conducting any work in the stream if the fish are spawning.

Construction Reminders

Motorists may experience short periodic stoppages or lane closures due to construction. York Region recognizes this can be disruptive and will make every effort to minimize disruptions. Thank you for your ongoing patience.

To help manage your daily commutes during construction, travellers can plan their route in advance by using traffic and navigation tools. York Region provides real-time traffic and road information in open data, used by many app developers.

Safety

For everyone’s safety, please reduce your speed through the construction area. Please contact us if you notice any safety issues in and around the construction sites.

Transit services

For inquiries about transit routes during construction, riders are encouraged to visit yrt.ca or call 1-866-MOVE-YRT (668-3978).


Take a look at the Humber River bridge construction from a bird’s-eye view

We’re here to answer your questions. Accessible formats of this newsletter or communication supports are available upon request.

 

General Inquiries:
Vanessa Savelli
Communications and Community Engagement Specialist
Phone: 1-877-464-9675 ext. 75923
Email: vanessa.savelli@york.ca

Construction Activity:
Gary Leonard
Construction Administrator
Phone: 1-877-464-9675 ext. 75233
Email: gary.leonard@york.ca

After hours emergency: 1-877-464-9675 ext. 75200

 


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View Major Mackenzie Drive road improvements photo gallery


 

Major Mackenzie Drive,Highway 400,Highway 50,Pine Valley Drive,Highway 27,Canadian Pacific Railway Tracks,construction,roads,improvements,closure,maintenance,detour,building,communities,City of Vaughan,project,alternate routes The Regional Municipality of York is investing in building a safe, efficient and reliable Regional transportation network for all users. The Regional Municipality of York en-US News

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