Pending 417 Closure Due to required work on pedestrian bridge

A section of Highway 417 will be fully closed in both directions on Saturday, July 28th  until Sunday, July 29th. Significant traffic impacts are expected from 5:00 pm on July 28th  to 11:00 am on July 29th . This closure is required for the demolition of the Harmer Avenue Pedestrian Bridge.

Highway 417 will be closed in both directions from Bronson Avenue to Carling Avenue. During the work, the following eastbound on-ramps will be closed:  Carling, Parkdale and Maitland. The following westbound on-ramps will be closed: Catherine, Rochester, Parkdale, Lyon and O’Connor.

The following detours will be in effect during the closure:

Westbound detour

  • Westbound motorists must exit the highway at Bronson Avenue onto Catherine Street
  • Proceed via Catherine Street, which becomes Raymond Street, westbound to Booth Street
  • Proceed via Booth Street southbound to Carling Avenue
  • Proceed via Carling Avenue westbound to the westbound Highway 417 on-ramp at Kirkwood Avenue (west of the fire station)


Eastbound detour

  • Eastbound motorists must exit the highway at Carling Avenue and continue east to Bronson Avenue
  • Proceed via Bronson Avenue northbound to Chamberlain Avenue
  • Proceed via Chamberlain Avenue eastbound to Isabella Street
  • Proceed via Isabella Street eastbound onto the eastbound Highway 417 on-ramp at Metcalfe Street


The public is advised to plan all trips well in advance as significant delays are expected during the closure. There are many other transportation options including OC Transpo, carpooling and other alternative forms of transportation to get around the city while this closure is in place.


Other Traffic impacts in Ottawa for the coming days – beginning Friday, July 27


  • Highway 416 – Beginning Friday, July 27 at 9 pm, the on-ramp from eastbound Fallowfield Road to northbound Highway 416 will be closed for roadwork. The ramp will be closed until Monday, July 30 at 6 am. Signed detours will be in place during the closure.


  • Old Tenth Line Road – On Monday, July 30, from 7 am until 3:30 pm, the northbound lane of Old Tenth Line Road will be closed for paving between St. Joseph Boulevard and Tenth Line Road. Signed detours for motorists and cyclists will be in place during construction.


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