Maintaining subway infrastructure in a state-of-good-repair is critical to ensuring a safe, reliable transit system. While the TTC does much of its maintenance work on the subway at the conclusion of service each night, it will continue to require weekend closures to complete improvements to infrastructure and signals, such as automatic train control. One weekend of work during a subway closure equals about five weeks of nightly work.

The TTC thanks you for your patience and understanding during our subway closures.

Schedule subject to change.

Line 1: St Clair West to Union closure February 23 and 24

March

Line 1: St Clair West to Union nightly early closures March 4 to 7

Line 1: Finch to Lawrence nightly early closures March 11 to 14

Line 1: St Clair West to Union nightly early closures March 18 to 21

Line 1: Lawrence to St Clair closure March 23

Line 1: Bloor-Yonge to St Andrew nightly early closures March 25 - 28

Line 1: St Clair West to Union closure March 30 and 31