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Online Consultation: Steeles Avenue Municipal Class Environmental Assessment (MCEA)


Halton Region is asking for input on the preliminary preferred design for Steeles Avenue in the Town of Milton. This is the second Public Information Centre (PIC) for this study, as part of the Schedule C Municipal Class Environmental Assessment (MCEA) process.

About the study

Study area


Study overview


To address future travel demand to 2031, there is a need to make road improvements to Steeles Avenue between Tremaine Road and Industrial Drive. The potential improvements are anticipated to include:

  • widening the road to four lanes;
  • active transportation facilities (on-road bike lanes and multi-use pathways);
  • a new underpass as part of a Canadian Pacific Rail grade separation;
  • intersection improvements (for example, new traffic signals, roundabouts, turning lanes); and
  • landscaping and street lighting.  

The study is being conducted in accordance with the planning and design process for Schedule C projects as outlined in the Municipal Class Environmental Assessment (October 2000, as amended 2007, 2011 and 2015), which is approved under the Environmental Assessment Act, RSO. 1990.

Reasons for the study


Halton Region is carrying out this study in accordance with the MCEA process to:

  • address future travel demand in the Town of Milton to 2031; and
  • support all modes of transportation (waking, cycling, transit and automobiles) and ensure safety for all road users.

Video presentation

Through this study, Halton Region has considered several road alignment alternatives for Steeles Avenue to help address future travel demand and support all modes of transportation. In the videos below, you can learn about the decision-making process and the key factors that were considered in identifying the preliminary preferred design for Steeles Avenue from Tremaine Road to Industrial Drive.  You can also click here to view a PDF version of the video presentation (PDF file).

1. Introduction


Learn more about the study area, existing conditions and study schedule.


View Introduction video transcript (PDF file)

2. Background


Learn about the study background, including an overview of the key outcomes from the first PIC held in November 2019.


View Background video transcript (PDF file)

3. Road alignment alternatives


Learn about the road alignment alternatives that have been considered for Steeles Avenue and how options were evaluated.


View road alignment alternatives video transcript (PDF file)

4. Preliminary preferred design and next steps


Learn about the preliminary preferred design for Steeles Avenue. This video includes photo renderings to help you visualize what the future roadway may look like. The video also includes an overview of next steps in the study process.


View Preliminary preferred design and next steps video transcript (PDF file)

Public Information Centre materials

For more detailed information about this study, please refer to the Project Documents on the MCEA project page for Steeles Avenue Corridor Study—Tremaine Road to Industrial Drive.

Technical documents

  • Preliminary preferred design for Steeles Avenue MCEA Study (PDF file):
    • The design is considered ‘preliminary’ until public, agency and Indigenous community feedback is received through this second PIC.
    • Key features of the Preliminary Preferred Design include:
      • a culvert/small bridge which will convey a small creek under Steeles Avenue just east of Tremaine Road;
      • an underpass at the CP Rail line;
      • a roundabout or a signalized intersection to provide a connection to existing Steeles Avenue and the neighbourhood of Peru, as well as new driveway access to the Milton Banquet and Conference Centre; and
      • a new bridge at Sixteen Mile Creek just west of Industrial Drive. 
    • The existing section of Steeles Avenue will end in a cul-de-sac just west of Peru Road, east of the CP Rail line.
    • The existing section of Steeles Avenue west of the CP Rail line will be closed.

Frequently Asked Questions

Halton Region received more than 80 comments during the online consultation period from April 15 to May 17, 2021 for the Steeles Avenue Transportation Corridor Improvements Project. Below are responses to common resident questions received during the second public consultation period.

The Region’s Transportation Master Plan to 2031 identifies the need for improvements to Steeles Avenue, between Tremaine Road and Industrial Drive.

As part of this Municipal Class Environmental Assessment (MCEA) Study, a traffic assessment reconfirmed the need to widen Steeles Avenue to four lanes by 2031. The assessment found that under future conditions travel demand will exceed the capacity of Steeles Avenue if it remains a two-lane road and no improvements are made. By widening Steeles Avenue, the road will be able to accommodate future travel demand as Halton grows.

The road alignment alternatives were assessed using a range of factors, including:

  • socio-economic environment;
  • natural environment;
  • surface and groundwater;
  • cultural environment;
  • transportation and technical considerations; and
  • the estimated capital cost.

The preliminary preferred alternative is the one that best addresses future transportation needs of the corridor, while minimizing negative impacts to the cultural, social, economic and natural environments. A full summary is provided in Video 3: Road Alignment Alternatives (video).

Alternative B was selected as the preliminary preferred road alignment alternative over other alternatives because it:

  • has a better Sixteen Mile Creek crossing location than Alternatives A and C as the road crosses Sixteen Mile Creek on a relatively straight section of the watercourse which minimizes impact to the creek;
  • has fewer impacts to residential backyards than Alternative A; and
  • ranks similarly to Alternative A under Cultural Environment, Transportation Considerations and Costs.

Alternative C was the least preferred because it:

  • has a significantly greater impact to Sixteen Mile Creek valley and other natural features;
  • has a greater impact to local business;
  • is a less efficient transportation network given the tie-in to the existing Steeles Avenue and the longer route;
  • has a poor crossing angle at CP Rail; and
  • has a higher cost.

Improvements along this corridor will align with the overall active transportation network identified in the Halton Region Active Transportation Master Plan. The proposed cross section for Steeles Avenue includes 1.8-metre bike lanes and 3-metre multi-use paths on both sides of the corridor.

Road operations and safety for all road users including pedestrians and cyclists were taken into consideration in the development of all alignment alternatives.

As the study progresses, the Project Team will refine the preliminary preferred design to look for opportunities to minimize property impacts, where possible.

Following the completion of the Steeles Avenue MCEA Study, further evaluation and design will be completed to determine if a roundabout or signalized intersection is preferred. This will be done during the future detailed design phase. As a roundabout has a larger footprint than the signalized intersection, the assessment has been completed with this as a basis, as shown in the Video #4: Preliminary Preferred Design and Next Steps (video) to allow a full assessment of impacts.

As outlined in the 2022 Halton Region Budget and Business Plan, the widening of Steeles Avenue from Tremaine Road to Industrial Drive is currently anticipated for start of construction in 2026, subject to a Council approved financing plan.

In February 2019, Halton Region launched new and enhanced tools to make it easy for residents and businesses to stay up-to-date on Regional improvement projects. Residents can visit to learn about some of the many ways to stay connected and learn more about construction activities:

  • Online interactive map: See what’s happening across the region. You can also filter by location or project type.
  • Project webpages: Find more detailed information about any Regional project.
  • Email notices: Sign up to receive construction notices right to your inbox. These updates will help you plan ahead for construction and potential disruptions, such as traffic impacts or noise.

The Region will also provide the following to allow residents and the community to plan ahead for construction:

  • Mail notices: Construction notices will continue to be mailed or hand delivered to the mailboxes of nearby residents.
  • Construction signboards: You can watch for signboards, which are posted within the construction area to provide high-level information on the project.
  • Social media: You can follow us at @RegionofHalton on Twitter and Facebook for construction updates.
  • Newspaper advertisements: Check your local newspaper for ads about upcoming construction and major road closures.
  • Opportunities to Participate webpage: All Regional projects open for public feedback including construction projects can be found on the Region’s Opportunities to Participate webpage.

You can also email or call 311 to speak to one of our construction ambassadors about any questions or concerns related to a project.

Next steps and anticipated timing


  • Spring 2021

    Review all public and agency comments and feedback on the preliminary preferred design

  • Summer 2021

    Confirm/refine the preferred design

    Additional consultation with technical agencies and stakeholder groups, as required

  • Fall 2021

    Prepare draft Environmental Study Report (ESR) 

  • Spring 2022

    File ESR for public review

If you require an alternative format or need accessibility-related accommodation, please call the Halton Region Project Manager Jessica Dorgo at 905-825-6000, ext. 7556, TTY 905-827-9833, or email