The Corridor Project

The new bridge for the St. Lawrence corridor project is one of the largest infrastructure projects in North America. The corridor-wide project not only includes a new bridge for the St. Lawrence, but a new île des Soeurs Bridge and reconstruction and widening of the federal portion of Autoroute 15.

The project’s public private partnership will include the following main components:

New Bridge for the St. Lawrence (Back to top)

Design, build, finance, operate and maintain an approximately 3.4 km long new bridge across the St. Lawrence River to replace the existing Champlain Bridge.  The new bridge will span the St. Lawrence River from the île des Soeurs to Brossard, immediately downstream from the existing Champlain Bridge. The new bridge is expected to include a three-corridor design, including two three-lane corridors for vehicular traffic and a two-lane transit corridor capable of accommodating a planned light rail transit system. The new bridge will also include a multi-use path for pedestrians and cyclists. This bridge is expected to have a 125-year design life. This component will be operational by the end of 2018. Full demolition of the existing Champlain Bridge is not included in the project.

New île des Soeurs Bridge (Back to top)

Design, build, finance, operate and maintain an approximately 470 m long new bridge linking île des Soeurs to the Verdun borough to replace the existing île des Soeurs Bridge. It is expected that the new bridge will be built in the current alignment of the existing bridge. The new bridge will include two three-lane corridors for vehicular traffic as well as a multi-use path. A temporary causeway-bridge is being built to by-pass traffic from the existing bridge. It is expected that this causeway-bridge will be in service in 2015. Demolition of the existing île des Soeurs Bridge is included in the project.  The new bridge is expected to have a 125-year design life and will be operational by the end of 2020.

Reconstruction and widening of Autoroute 15 on Montréal Island (Back to top)

Design, build, finance, operate and maintain an approximately 3 km long highway linking the île des Soeurs Bridge to the provincial section of Autoroute 15. This component will include the reconstruction of the existing Autoroute 15 and its widening from two to three lanes. It will not include a transit corridor but will include the reconstruction of 7 existing overpasses on the Island of Montréal. The overpasses and other major structures forming this component are expected to have a 75-year design life and will be operational by the end of 2020.

Reconstruction of Autoroute 15 on île des Sœurs (Back to top)

Design, build, finance, operate and maintain an approximately 1 km long highway linking the new bridge for the St. Lawrence to the île des Soeurs Bridge. This component will include two three-lane corridors for vehicular traffic and a two-lane transit corridor capable of accommodating a planned light rail transit system. This component will also include a multi-use path for pedestrians and cyclists, is expected to have a 75-year design life and will be operational by the end of 2020.

Operation and maintenance of existing infrastructure (Back to top)

Operate and maintain the existing Clément Bridge and the federal section of Autoroute Bonaventure. Major maintenance and reconstruction of these infrastructures will not be included in the project. Responsibility for this component is expected to begin when all traffic has been transferred from the existing Champlain Bridge to the NBSL by the end of 2018.

Tolling Infrastructure and Intelligent Transportation Systems (Back to top)

Design, build, finance, operate and maintain an open road tolling system including signage, signaling and communications. This component is expected to be phased in once the components become operational.

The following table summarises the Private Partner’s responsibilities:

Project Components Design Construction Financing Operations & Maintenance Life Cycle Maintenance Deconstruction Handover
New Bridge for the St. Lawrence X X X X X   X
New Île des Soeurs Bridge X X X X X   X
Existing Île des Soeurs Bridge           X  
Autoroute 15 X X X X X   X
Clément Bridge         X    
Federal section of the Autoroute Bonaventure         X    
Tolling infrastructure X X X X X   X