New Richelieu mechanical ventilation station: STM begins public consultation process


In spring 2022, the Société de transport de Montréal (STM) will begin construction on a new mechanical ventilation station at the corner of Richelieu and Sainte-Marguerite, in the Sud-Ouest borough. In order to open a dialogue on the project with the local community, the STM will hold a public consultation beginning March 30.

The independent public consultation is a requirement to obtain construction permits for the infrastructure. It will include three steps:

  • Project presentation: March 30 at 6:30 p.m.
  • Feedback submission period: March 30 to April 15, 2021
  • Input session: April 15, 2021 at 6:30 p.m.

Due to the current health crisis, the consultation sessions will be held virtually. To register for a session or to find out more about the consultation process, click here:

What is a mechanical ventilation station?

A mechanical ventilation station is an infrastructure located between two métro stations that is equipped with fans designed to extract hot air from the métro network through inlets fitted with air vents. Ventilation stations built for the original métro network extract around 60,000 cubic feet of air per minute, while the new ventilation systems extract around 240,000 cubic feet per minute. Huge noise suppressors mitigate the noise from these fans to ensure quiet for residents living close to a ventilation station.

The new ventilation station will be built on the lot next to the current one. Built in the late 1960s, the station has now reached the end of its service life and must be replaced. The Richelieu mechanical ventilation station project involves building a new, quieter and more efficient ventilation station that meets new safety standards and complies with City of Montréal noise by-laws.