Work to replace the LeBreton bridge on the Sir John A. Macdonald Parkway begins Wednesday, May 15

The LeBreton Bridge on the Sir John A. Macdonald Parkway is at the end of its lifecycle. Its replacement will involve demolishing the existing bridge and building a new one. Work is expected to be completed in summer 2020.

About the project

In order to minimize the construction impact on traffic, a detour road for motorists will be implemented during the construction of the new bridge.

Phase 1: May 15 to end of June 2019

Work will involve the construction of a temporary detour road parallel to the Sir John A. Macdonald Parkway to reduce the impact on traffic.

  • Detour road with same capacity as the Sir John A. Macdonald Parkway.
  • Two lanes in each direction, with reduced speed limit from 60 km/h to 40 km/h.

Phase 2: July 2019 to summer 2020

  • Opening of the detour road.
  • Construction of the new bridge.
  • Work to mainly occur Monday to Friday, between 6 am and 7 pm. There will be occasional work on Saturdays and Sundays.
  • Signage to facilitate traffic flow.
  • Motorists and cyclists to exercise caution on-site.


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.