Current Closures/Detours

Updated: October 2, 2025

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

Highway 417 Lane and Ramp Closures

  • CLOSED: Highway 417 eastbound Bronson Avenue off-ramp – anticipated reopening November 28, 2025 (see detour below).
  • CLOSED: Highway 417 westbound Rochester on-ramp – anticipated reopening October 6, 2025 (see detour below).
  • CLOSED: Between Rochester Street and Bank Street, the Highway 417 eastbound left lane will be closed, and the middle lane will be closed nightly between October 3-6. In the westbound direction, the left lane will be closed, and the middle lane will be closed nightly between October 3-6.
  • CLOSED - Westbound Island Park Drive off-ramp - anticipated reopening November 2025 (see detour below).
  • CLOSED - Westbound Parkdale on-ramp - anticipated reopening October 9, 2025 (see detour below).
  • CLOSED - Lyn St S to Westbound on-ramp - anticipated reopening Fall 2025 (see detour below)
  • CLOSED - Lane 4 (outside lane) on Highway 417 eastbound and westbound between Island Park Drive and Metcalfe Street - anticipated reopening 2025.
  • Nightly single lane closures both east and westbound, between 9 PM and 6 AM may occur during construction season.
  • Daytime single lane closures (center median) between 9 AM and 3 PM may occur during construction season.

Highway 417 Lane and Ramp Closure Detour Routes

  • Eastbound Bronson off-ramp – Click here for detour map
  • Westbound Rochester on-ramp – Click here for detour map
  • Westbound Island Park Drive off-ramp - Click Here for detour map
    • For the detour of the Island Park off-ramp, continue west on Highway 417 and exit at the Carling off-ramp. Turn north onto Kirkwood Avenue and then east onto Richmond Road to return to Island Park.
  • Westbound Parkdale on-ramp - Click Here for detour map
    • For the detour of the Parkdale on-ramp, travel south and turn right onto Carling Avenue. Continue onto the westbound Carling on-ramp

City Street Closures

  • CLOSED - Island Park Crescent Clarendon to Edina Street - anticipated reopening November 1, 2025 (see detour below).
  • CLOSED - Hinton Avenue North (Tyndal Street to dead end) and Hinton Avenue South (Sherwood Drive to Dead end) - anticipated reopening October 2025 (see detour below).
  • CLOSED - Orangeville Street from Rochester Street to Booth Street anticipated reopening November 2025 (see detour below).

City Street Closure Detour Routes

Upcoming Detours

Updated: September 19, 2025

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

Future Highway 417 Lane and Ramp Closures

  • October 19-November 28, 2025: The Bronson westbound off-ramp will close.

Future Detour Routes

None at this time

Future City Street Closures

  • Bronson Avenue lane reduction from Highway 417 Eastbound off-ramp to Catherine Street.

Future City Street Detours

None at this time

Current Construction Activities

Preston Street Structure

  • Finishing works are still ongoing.

Bronson Avenue Structure

  • Finishing works are still ongoing.

Percy Street Structure

  • Finishing works are still ongoing.

Noise Walls and Retaining Walls

  • Noise barrier installation on Booth Street and Rochester Street is still ongoing.
  • Kent Street off-ramp noise barrier installation is ongoing.
  • Noise barrier installation westbound and eastbound lanes from Booth Street to Bronson Avenue is ongoing.
  • Noise barrier installation on the north side of Percy bridge is ongoing.
  • Retaining wall construction from Orangeville Street to Bell Street is ongoing.
  • Retaining wall construction on Percy Bridge is ongoing (NE and SW).
  • Retaining wall construction on Bronson Bridge is ongoing (NE, SE, NW, and SW).
  • Retaining wall and noise wall construction from Percy Street to Kent Street is ongoing.
  • Retaining wall construction on between Harmer Avenue and Huron Ave S will begin April 2025.
  • Retaining wall construction on Island Park Crescent will begin April 2025.

Other Structures

  • Sewer line installation near Lyon Street off-ramp is ongoing.
  • Storm line construction from Percy Street to Kent Street is in ongoing.
  • The Drainage work on the South Side of Hwy 417 between Bronson and Percy is ongoing.
  • Drainage work on the Bronson retaining walls is ongoing.
  • Tree clearing and grubbing operations between Parkdale and island Park Drive will begin April 2025.
  • Trenchless crossing at Rochester W-N/S Off ramp is ongoing.

Public Notices