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Sinkhole From East-End Toronto Watermain Break Shuts Coxwell–Cosburn Intersection

Residents describe delayed shutoffs and basement damage.

Overview

  • A late Wednesday watermain break at Coxwell Avenue and Cosburn Avenue caused street flooding, pavement collapse and a large sinkhole.
  • The city confirmed at least two flooded basements, while residents reported sewage backup and mud inside their homes.
  • City crews worked through the night and remain on site to conduct emergency repairs, prevent further flooding and support affected households.
  • The intersection is temporarily closed to traffic, with officials advising drivers to use alternate routes and promising a restoration timeline after an investigation.
  • The TTC says the 87 Cosburn and 70 O'Conner bus routes are on detour because of the sinkhole repairs.