UPDATED: July 18, 2024

Upcoming Detours

For updates in real time please visit Ontario 511and the City of Ottawa's Traffic Wesbite.

See below for details on the upcoming Preston Street Rapid Bridge Replacement.

Future Highway 417 Lane and Ramp Closures

  • Westbound O'Connor on-ramp - 2025

Future Detour Routes

  • Westbound O'Connor Street on-ramp - Click Here for detour map
    • Continue on Catherine Street and enter via the Bronson on-ramp.

Future City Street Closures

  • Bronson Avenue lane reduction from Highway 417 Eastbound off-ramp to Catherine Street.
  • Full closure of Preston Street from July 17 to August 6, 2024.
  • St Anthony Street to be closed during the Preston RBR in Summer of 2024.

Future City Street Detours

Future Preston Rapid Bridge Replacement Closures

  • Highway 417 eastbound and westbound between Carling Avenue and Metcalfe Street
  • Highway 417 eastbound on-ramps - July 25 to 29, 2024
    • Maitland Avenue on-ramp
    • Carling Avenue on-ramp
    • Parkdale Avenue on-ramp (ongoing - to reopen in August 2024)
  • Highway wesbound on-ramps - July 25 to 29, 2024
    • O'Connor Street on-ramp
    • Lyon Street on-ramp (ongoing - to reopen in 2025)
    • Bronson Avenue on-ramp
    • Rochester Street on-ramp (ongoing - to reopen October 2024)
    • Parkdale Avenue on-ramp

Future Preston Rapid Bridge Replacment Detours