Wednesday, May 15, 2019 6:00 am to Friday, August 28, 2020 7:00 pm

The National Capital Commission (NCC) will begin preparation work to replace the LeBreton bridge on the Sir John A. Macdonald Parkway on Wednesday, May 15, 2019. The work will involve demolishing the existing bridge and building a new one. Work is expected to be completed in summer 2020.

Phase 1: May 15 to end of June 2019

The first part of the work will involve the construction of a temporary detour road parallel to the Sir John A. Macdonald Parkway to reduce the impact on traffic. The detour road will have the same capacity as the Sir John A. Macdonald Parkway, two lanes in each direction, but the speed limit will be reduced from 60 km/h to 40 km/h.

Work to build this detour begins on May 15, and is expected to be completed by the end of June 2019. Once the work is completed, the NCC will begin the second part of the work and will close the LeBreton bridge section of the Sir John A. Macdonald Parkway. Following this closure, motorists will take the detour road to access the parkway.

Phase 2: July 2019 to summer 2020

The detour road will be in place for the duration of the construction of the new bridge, which should take about one year to complete. Regular construction noise and equipment are to be expected at the site. Work will be undertaken Monday to Friday, between 6 am and 7 pm. There will be occasional work on Saturdays and Sundays.

The construction areas will be fenced, and signage will be in place to help facilitate traffic flow. The NCC urges motorists and cyclists to exercise caution, respect working crews and equipment, and obey signage and flag persons on-site.

The existing bridge requires replacement, as it has reached the end of its life cycle. This project is part of the NCC’s major infrastructure projects made possible with the Government of Canada’s $55-million investment from the 2018 federal budget.

LeBreton bridge
Closure Map