Des Halles auxiliary building

Des Halles auxiliary building


Worksite summary

As part of the Blue line extension project, this worksite involves building a new operational infrastructure required to operate the métro.

Following the expert committee’s work to optimize the project budget, some parameters have been revised. The auxiliary building between the Langelier and Anjou stations will be located in the actual parking lot behind the Halles d'Anjou.

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Start of work: We plan to start excavation work in 2025.

Description of the work: New building construction.

Impact on customer trips

Details to come.

Impact on local residents

Upcoming excavation work

Full and partial street closures are planned at various points along the route and will last for varying lengths of time. Detailed planning is not yet available for your area. In the meantime, please see the Latest Updates and FAQ tabs on the project page for more information on the high-level planning.

Learn more about the project

An auxiliary building is a service building, closed to the public and located between two métro stations, that houses a variety of mechanical and electrical equipment needed for métro operations. This includes ventilation equipment, power supply infrastructure and pumps to remove runoff water. There are currently hundreds of these buildings in the métro network.

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Public participation

Information sessions, talks, activities, good neighbour committees: our team wants to meet you!

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More about the Blue line extension

Other extension worksites All about the project


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The project in image

Des Halles auxiliary building

The blue line extension project follows in the wake of the Déclaration du gouvernement du Québec et de la Ville de Montréal to revitalize Montréal East. Many projects are underway to give a new impetus to this sector. Increased mobility, economic development, and improved living environments are at the heart of this ambitious project. For more information, see Qué (in French only).

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