Item - 2026.NY33.27

The Interim Deputy General Manager, Transportation Services recommends that:

Steeles Station:

Public Laneway (Ln E Yonge S Steeles):

1. City Council approve the temporary closure of the public laneway (Ln E Yonge S Steeles), between Steeles Avenue and Nipigon Avenue, from June 25, 2027 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

Yonge Street Detour Road:

2. City Council authorize public highway designation and dedicate the lands, described as Parts 1, 2, 5, 7, 8, and 9 on Reference Plan 66R-34930, being part of PIN 10139-0289 (LT) set out as Attachment 1 of the report (May 7, 2026), to be known as “Yonge Street Diversion Road”, to become effective upon the transfer to the City of the required interest in lands forming the diversion road and the registration of the highway dedication bylaw on those lands.

3. City Council authorize public highway designation and dedicate the lands, described as Part 1 on Reference Plan 66R-34927, being part of PIN 10139-0230 (LT) set out as Attachment 2 of the report (May 7, 2026), to be known as “Yonge Street Diversion Road”, to become effective upon the transfer to the City of the required interest in lands forming the diversion road and the registration of the highway dedication bylaw on those lands.

4. City Council authorize public highway designation and dedicate the lands, described as Part 1 on Reference Plan 66R-34408, being part of PIN 10139-0230 (LT) set out as Attachment 3 of the report (May 7, 2026), to be known as “Yonge Street Diversion Road”, to become effective upon the transfer to the City of the required interest in lands forming the diversion road and the registration of the highway dedication bylaw on those lands.

5. City Council prohibit stopping on both sides of the Yonge Street Diversion Road, between Steeles Avenue and Madawaska Avenue, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

6. City Council authorize the installation of temporary traffic control signals at the intersection of Yonge Street Diversion Road and Athabaska Avenue, from December 10, 2026 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

7. City Council designate a 40 kilometres per hour speed limit on Yonge Street Diversion Road, between Steeles Avenue and Madawaska Avenue, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

Yonge Street:

8. City Council designate a 40 kilometres per hour speed limit on Yonge Street, between Steeles Avenue and Madawaska Avenue, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

9. City Council prohibit stopping at all times on both sides of Yonge Street, between Steeles Avenue and Madawaska Avenue, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

10. City Council approve the temporary closure of the west sidewalk to pedestrian traffic on Yonge Street, between Madawaska Avenue and Athabaska Avenue, from December 10, 2026 to June 24, 2027, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

11. City Council approve the temporary closure of the west sidewalk to pedestrian traffic on Yonge Street, between Nipigon Avenue and Athabaska Avenue, from June 25, 2027 to January 19, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

12. City Council approve the temporary closure of the west sidewalk to pedestrian traffic on Yonge Street, between Steeles Avenue and Athabaska Avenue, from January 20, 2028 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

13. City Council approve the temporary closure of the east sidewalk to pedestrian traffic on Yonge Street, between Abitibi Avenue and Otonabee Avenue, from September 12, 2028 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

14. City Council authorize the temporary closure of the existing easterly northbound and westerly southbound reserved lanes to vehicular traffic on Yonge Street, between Steeles Avenue and Madawaska Avenue, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

15. City Council approve the temporary closure of the east crosswalk to pedestrian traffic on Yonge Street at Athabaska Avenue, from September 12, 2028 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

16. City Council approve the temporary closure of the northbound and southbound curb lanes to vehicular traffic on Yonge Street, between Steeles Avenue and Madawaska Avenue, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

17. City Council approve the temporary full closure to vehicular traffic on Yonge Street, between Steeles Avenue and Madawaska Avenue, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

18. City Council prohibit northbound left-turn movement at the intersection of Yonge Street and Athabaska Avenue, from June 25, 2027 to January 19, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

19. City Council prohibit northbound right-turn, southbound left-turn and eastbound through traffic movements at the intersection of Yonge Street and Athabaska Avenue, from September 12, 2028 to March 16, 2029, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

20. City Council prohibit westbound right-turns on red signal at the intersection of Yonge Street and Athabaska Avenue, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

Yonge Street and Steeles Avenue:

21. City Council authorize the alteration of the south-west corner of Yonge Street and Steeles Avenue, to remove the east-to-southbound right-turn channel.

22. City Council approve the temporary closure of the south crosswalk to pedestrian traffic on Yonge Street at Steeles Avenue, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

23. City Council prohibit eastbound, westbound, northbound, and southbound right-turns on red signal at the intersection of Yonge Street and Steeles Avenue, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

Side Streets:

24. City Council approve the temporary closure to vehicular traffic on Nipigon Avenue at Yonge Street, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

25. City Council approve the temporary closure to vehicular traffic on Abitibi Avenue at Yonge Street, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

26. City Council approve the temporary closure to vehicular traffic on Otonabee Avenue at Yonge Street, from September 12, 2028 to July 22, 2030, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

27. City Council approve the temporary closure to vehicular traffic on Athabaska Avenue at Yonge Street, from September 12, 2028 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

Steeles Avenue:

28. City Council approve the temporary closure of the westbound right-turn lane to vehicular traffic on Steeles Avenue, between Yonge Street and a point approximately 85 metres, from June 25, 2027 to September 11, 2028, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

29. City Council approve the temporary closure of the westbound curb lane to vehicular traffic on Steeles Avenue, between a point approximately 200 metres west of Yonge Street and a point approximately 150 metres east of Yonge Street, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

30. City Council approve the temporary closure of the westbound median lane to vehicular traffic on Steeles Avenue, between Yonge Street and a point approximately 85 metres west of Yonge Street, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

31. City Council approve the temporary closure of the eastbound curb lane to vehicular traffic on Steeles Avenue, between a point approximately 305 metres west of Yonge Street and a point approximately 150 metres east of Yonge Street, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

32. City Council approve the temporary closure of the eastbound median lane to vehicular traffic on Steeles Avenue, between Yonge Street and a point approximately 200 metres west of Yonge Street, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

33. City Council approve the temporary closure of the two-way left-turn only lane to vehicular traffic on Steeles Avenue, between a point approximately 125 metres west of Yonge Street and a point approximately 180 metres further west, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

34. City Council designate a 40 kilometres per hour speed limit on Steeles Avenue, between Dumont Street and a point 360 metres west of Yonge Street, from June 25, 2027 to March 16, 2029, inclusive, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

35. City Council prohibit stopping on Steeles Avenue, between Dumont Street and a point 360 metres west of Yonge Street, from June 25, 2027 to March 16, 2029, to facilitate construction of the Steeles Station as part of the Yonge North Subway Extension.

General:

36. City Council authorize the appropriate City officials to take all steps necessary to implement the proposed dedications referred to in Recommendations 2, 3, and 4 above, including requesting the City solicitor to prepare and submit the relevant Bills and to pay any costs necessary to register the resultant by-laws, if required.

37. City Council authorize the General Manager, Transportation Services, to negotiate, enter into and execute an agreement with Metrolinx on terms and conditions satisfactory to the General Manager, Transportation Services, in relation to, among other things, the construction, maintenance, and warranty work of the diversion road, as well as to negotiate, enter into and execute any necessary agreements and documents, and take steps and measures necessary, on behalf of the City, to temporarily exercise the City’s authority.

38. City Council authorize the General Manager, Transportation Services, in issuing any requisite permits to include additional permit terms and conditions as the General Manager, Transportation Services deems necessary and appropriate.

39. City Council authorize the appropriate City officials to submit directly to City Council at the appropriate time any necessary Bills to amend the appropriate City of Toronto Municipal Code and / or Chapters, and any Schedules to the Chapters, to reinstate the traffic and parking regulations to what they were immediately prior to the by-law amendments made in connection with the report (May 7, 2026) from the Interim Deputy General Manager, Transportation Services.

40. City Council authorize the appropriate City officials to submit directly to City Council at the appropriate time any necessary Bills to amend the effective date of any dedication by-law(s) and / or traffic and parking by-law(s) made in connection with the report (May 7, 2026) from the Interim Deputy General Manager, Transportation Services to, among other things, insert a specific effective date, in order to give effect to Recommendations 1 to 35, inclusive, above.

41. City Council authorize the City Solicitor to introduce the necessary Bills to give effect to City Council’s decision and City Council authorize the City Solicitor to make any necessary clarifications, refinements, minor modifications, technical amendments, or by-law amendments as may be identified by the City Solicitor or the General Manager, Transportation Services in order to give effect to Recommendations 1 to 40, inclusive, above.

This report provides an overview of Metrolinx’s planned construction activities for the Yonge North Subway Extension Steeles Station at the intersection of Yonge Street and Steeles Avenue. The report outlines the key construction stages, anticipated timelines, and associated long-term temporary lane closures, turning restrictions, pedestrian and cycling impacts, transit adjustments, and access considerations required to facilitate construction.

Construction of Steeles Station requires excavation of a large underground station box within the existing Yonge Street right-of-way. Due to the scale and location of the work, it is not feasible to maintain traffic operations within the existing roadway during key stages of construction. To maintain north-south connectivity, Yonge Street will be temporarily realigned onto a newly constructed diversion road west of its existing alignment. Following implementation of the diversion road, Yonge Street, between Steeles Avenue and Madawaska Avenue, will be fully closed to vehicular traffic during the main construction phase.

This report seeks City Council approval for the temporary full closure of Yonge Street, the temporary designation of the diversion road as a public highway and associated temporary traffic and pedestrian by-law amendments required to support construction of Steeles Station.

In addition, this report seeks to extend the delegated authority of the General Manager, Transportation Services, to implement long-term temporary road closures and associated traffic modifications to December 31, 2030, to allow flexibility to respond to refinements in construction staging and scheduling without the need for subsequent reports to Council.

Approval of the recommendations in this report will enable Metrolinx to proceed with critical construction activities while ensuring that impacts to the transportation network, local communities, and road users are effectively managed through coordinated traffic control, access management, and construction mitigation measures.

There is no financial impact to the City. Metrolinx and its contractors are responsible for all costs, including payment of fees to the City for occupancy of the road right-of-way.