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Early Works

The Ontario Line - Early Works: Lakeshore East Joint Corridor

Lakeshore East Joint Corridor early works will set the groundwork for other major construction on the Ontario Line and GO Expansion projects, reducing risk of construction delays to the main public-private partnership (P3) contracts by completing the Ontario Line and GO Expansion joint corridor work in advance of the main contracts for both of these transit projects.

Lakeshore East Joint Corridor early works are planned along the Lakeshore East rail corridor between approximately Eastern Avenue and Pape Avenue and will include:

  • reconfiguration of existing GO tracks to support future Ontario Line infrastructure;
  • replacement of the existing rail bridges at Queen Street East, Dundas Street East and Logan Avenue;
  • construction of two new bridges at Dundas Street East and Logan Avenue to support future Ontario Line tracks;
  • construction of the foundations for GO Overhead Catenary System poles and supporting infrastructure to accommodate future fourth GO track;
  • construction of retaining walls; and
  • construction of noise barriers, including east of Pape Avenue.

The Draft Lakeshore East Joint Corridor Early Works Report has been prepared in accordance with Ontario Regulation 341/20: Ontario Line Project, Section 8 and outlines the purpose of early works, a description of local environmental conditions, potential impacts and proposed mitigation measures and a record of consultation.

How to Participate

To read the results of a specific environmental study, select one of the environmental studies below. To review the full report, visit the Full Report page. Public feedback received, final report in progress.

The Draft Lakeshore East Joint Corridor Early Works Report is available for review:

View the Full Early Works Report


Environmental impacts of Lakeshore East Joint Corridor early works are being assessed in accordance with Ontario Regulation 341/20: Ontario Line Project (O. Reg. 341/20), under the Environmental Assessment Act. The early works assessment process includes the following:

  • reviewing and examining early works components and activities;
  • understanding local environmental conditions through desktop reviews and field studies
  • assessing and evaluating potential impacts that early works components and activities may have on the environment;
  • proposing mitigation measures to avoid or reduce impacts and monitoring activities to verify effectiveness of mitigation measures; and
  • determining any municipal, provincial, federal or other permits and approvals that may be required as planning progresses.

 

The Draft Lakeshore East Joint Corridor Early Works Report provides the following:

  • a description of the early works;
  • a map showing the site of the early works;
  • the rationale for proceeding with the early works and a summary of background information;
  • a description of the local environmental conditions at the site of the early works;
  • a description of all studies undertaken;
  • Metrolinx’s assessment and evaluation of the impacts that the preferred method of carrying out the early works and other methods might have on the environment, and Metrolinx’s criteria for assessment and evaluation of those impacts;
  • a description of any measures proposed by Metrolinx for mitigating any negative impacts that the preferred method of carrying out the early works might have on the environment;
  • a description of the means Metrolinx proposes to use to monitor or verify the effectiveness of mitigation measures proposed;
  • a description of any municipal, provincial, federal or other approvals or permits that may be required for the early works; and a consultation record.

Lakeshore East Joint Corridor early works are planned along the Lakeshore East rail corridor between approximately Eastern Avenue and Pape Avenue and will include: reconfiguration of existing GO tracks to support future Ontario Line infrastructure; replacement of the existing rail bridges at Queen Street East, Dundas Street East and Logan Avenue; construction of two new bridges at Dundas Street East and Logan Avenue to support future Ontario Line tracks; construction of the foundations for GO Overhead Catenary System poles and supporting infrastructure to accommodate future fourth GO track; construction of retaining walls; and construction of noise barriers, including east of Pape Avenue.

Map

Environmental Studies