Work at Rosemont station

Project summary

From May 2022 to December 2023, the STM took advantage of OMHM's construction work at Rosemont station to rehabilitate the waterproofing membrane covering the station's underground roof, and rebuild a ventilation shaft. The redevelopment of the forecourt was also carried out on behalf of Ville de Montréal.

Description of the work:

  • Replacement of the waterproofing membrane covering the station’s underground roof (done).
  •  Reconstruction of the natural ventilation shaft (done).
  • Redevelopment of the square around the station into a new public space, on behalf of the City of Montréal (done).

Bus loop

OMHM still needs to make adjustments to the bus loop. The bus terminus and access to station's entrance via the loop are still closed to the public. Reopening scheduled for summer 2024.

Please respect the signage and do not walk through the terminus!

Impact on customer trips

Bus impact

Line 161 West is now back in front of the the station, on Rosemont boulevard.

Map of the relocated bus stops and work zone around Rosemont metro station.


The bus terminus is still closed for corrective work by the OMHM. Please follow the signs and use the access on Rosemont Boulevard to enter the station.

Impact on local residents

OMHM currently makes adjustments to the bus loop, which is temporarily closed to the public.

Redevelopment of the square around the station into a new public space, on behalf of the City of Montréal

With new green spaces and bicycle racks, the redeveloped square will be a pleasant, people-focused place of connection for public transit users and neighbourhood residents alike.

Located next to the Marc-Favreau library and the Réseau-Vert multi-functional trail, the new space will add the last touch to the redevelopment of the site of former municipal workshop buildings. The project will also align with the sustainable development goals in the City of Montréal’s 2020-2030 Climate Plan (French only) and with the Rosemont–La-Petite-Patrie borough’s ecological transition efforts.

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Watch our video on waterproofing systems to learn how we protect our métro stations from water infiltrations.

What is a waterproofing membrane?
The waterproofing membrane protects the station from water infiltrations. It covers the station’s underground roof and is therefore located underground. Rosemont’s waterproofing membrane dates back to the station’s initial construction and has reached the end of its useful life.

Consult the accessibility page for more info on the external medias.

See Waterproofing system replacement on YouTube

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