The century-old Dufferin Bridge was closed to vehicle traffic in June 2013, to ensure public safety, according to city staff at the time.
However, they had known for years that the bridge was in need of serious repair.
Read the main story: City ignored advice to urgently replace Dufferin Bridge years before emergency closure, documents show
The timeline below shows the history of the Dufferin Bridge, as revealed in documents obtained by Global News under Freedom of Information legislation. Clicking on the Read More links will take you to the original documents.