Traffic on Highway 417 in Ottawa is once again snarled due to ongoing construction, including lane closures, reduced speed limits, and rotating ramp closures. The work is part of the Ontario Ministry of Transportation's (MTO) larger project to replace bridges crossing the highway at Bronson Avenue, Preston Street, Rochester Street, Booth Street, and Percy Street.
Project Details and Timeline
The project employs Rapid Bridge Replacement technology, which involves constructing new bridges in a staging area before demolishing and replacing old structures during temporary shutdowns. Originally beginning in 2021, the work was expected to conclude in 2025, but on April 13, the MTO announced new construction between Island Park Drive and Kent Street.
Meaghan Evans, senior media-relations advisor at MTO, stated that construction on the mid-town bridges will primarily occur at night and on weekends to minimize disruption. In the coming weeks, eastbound lanes between Carling Avenue and Rochester Street will be reduced, and drivers should expect nightly ramp closures for the construction of an 860-metre noise barrier.
Additional Work and Speed Reductions
The project also includes replacing 4.5 kilometres of barriers. The speed limit in the affected area between Carling and Rochester will be reduced to 80 km/h, and off-ramp reopenings are planned for late summer. The westbound on-ramp at Lyon Street will remain closed until spring 2026.
Beyond bridges and noise barriers, the 2026 schedule includes median installations, asphalt paving, re-painting of lane markers, and an eventual end to construction.
Impact on Commuters
The construction adds to existing congestion from Stage 2 LRT work in Ottawa's west end, affecting drivers heading both east and west. The MTO did not provide further details on lane painting or an updated completion date. Residents can find closure updates on the City of Ottawa's social media and website.
