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Reminder: Highway 417 will close August 10 to 14 for bridge replacement

Updated: Aug 10, 2023

Update - August 10th: *This project has been postponed until futher notice*

The Ministry of Transportation Ontario will be closing the following sections of Highway 417 for the rapid bridge replacement over Percy Street, starting at 8 pm tomorrow, Thursday, August 10, until around 6 am on Monday, August 14:

  • Eastbound lanes between Carling/Kirkwood and Metcalfe

  • Westbound lanes between Metcalfe/Catherine and Bronson.

Lane reductions and ramp closures are scheduled to start at 7 pm tomorrow, with the full closure of Highway 417 scheduled to be in place by 8 pm.

The following access ramps will also close:

  • O’Connor westbound

  • Lyon westbound (ongoing)

  • Maitland eastbound

  • Carling eastbound

  • Parkdale eastbound

The following detours will be in effect during the closure:

Westbound detour for Highway 417 closure

  • Westbound motorists must exit the highway at Metcalfe/Catherine

  • Continue westbound on Catherine Street

  • Take the Highway 417 Bronson westbound access ramp

Eastbound detour for Highway 417 closure

  • Eastbound motorists must exit the highway at Carling/Kirkwood

  • Continue eastbound on Carling Avenue

  • Turn right on Bronson Avenue

  • Take ramp to eastbound Riverside Drive

  • Continue eastbound on Riverside Drive

  • Take the Highway 417 Riverside eastbound access ramp (just before the 417 bridge)

Stay up to date on the latest transit information by visiting, calling 613-560-5000 or following OC Transpo’s Twitter account.

For updates on construction and roadwork activity across Ottawa, or for information about traffic and travel planning, visit the City’s traffic map or follow the City’s traffic account on Twitter.


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