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Hamilton’s Aberdeen Avenue Tops CAA’s 2025 List of Ontario’s Worst Roads as Toronto Streets Dominate

Compiled from more than 2,400 driver nominations in 208 municipalities, the rankings aim to pressure governments into repairing Ontario’s crumbling roads

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Aberdeen Avenue in Hamilton tops CAA’s Worst Roads for a second year, with over 2,400 roads nominated across Ontario in the 2024 campaign.
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Queen Street looking east in downtown Kingston on Thursday, June 5, 2025.

Overview

  • The Canadian Automobile Association’s annual survey drew feedback from drivers, cyclists, transit riders and pedestrians to identify the province’s most deteriorated thoroughfares.
  • Aberdeen Avenue in Hamilton was named the worst road for a second consecutive year, edging out fellow Hamilton hotspot Barton Street East.
  • Toronto captured three spots in the top ten, with Eglinton Avenue West slipping to fourth, the Gardiner Expressway at ninth and Sheppard Avenue West at tenth.
  • The list underscores how rapid population growth, prolonged construction projects and chronic pothole damage are intensifying congestion across urban and rural routes.
  • Public opinion research shows 85% of Ontarians support short-term disruptions for essential repairs and the RCCAO is calling for increased funding to accelerate infrastructure fixes.