Bellechasse bus garage

Construction of the Bellechasse bus garage

Project summary

Located in the heart of the city, close to many transportation corridors, the new garage is part of our strategy for accommodating 300 new buses. It will also be equipped with the facilities needed to house a fleet of fully electric buses.

Duration of the work: Spring 2019 to fall 2022

Description of the work: Construction of a new bus garage

Métro impacts: No

Bus impacts: No

Impact on customer trips

There is no impact on customer trips.

Impact on local residents

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Latest news - February 19, 2021

We will soon begin a new major phase of construction on the future Bellechasse bus garage.

This will involve installing a massive, 10,550-tonne steel structure. The work will continue into late 2021.

You may notice an increased presence of trucks in the area. Rest assured that we will do everything possible to mitigate any disturbance in your neighbourhood.

You can view the recording of this public information session (in French only).

It was necessary to make the street one-way during construction to facilitate the delivery of numerous materials, given the scope of the project. This will therefore continue until the project ends in 2022. Regarding the layout of Bellechasse Street after the work, the borough is still analyzing the best layout possible for integrating the EBN by taking our operations into consideration.

Traffic studies were conducted, and it is not a good idea to have buses on Marmier or Des Carrières streets. One of the reasons justifying our position is that buses would have to pass through residential streets east of Saint-Denis to reconnect with major roads.

We have not yet completed the detailed planning regarding bus fleet management for the coming years. We must re-evaluate our needs in light of the pandemic. One thing is certain, the Saint-Denis bus garage will no longer be a priority in terms of service once the Bellechasse bus garage is operational, particularly because it will not be equipped to house buses outfitted with the latest hybrid and electric technologies.

The Saint-Denis bus garage is slated to close in 2024, and the land will, eventually, be given to the City.

Certain vehicles will be equipped with BBS-type alarms. However, it’s difficult to make this type of alarm mandatory for the next phase of the work given the significant number of contractors and the fact that their equipment will be leased. It is important to point out that the work will be carried out at the bottom of the excavation, which will thereby limit the use of backup alarms.

We’re also studying the implementation of a traffic plan to reduce the number of times vehicles back up on the worksite, which will help reduce the noise caused by the trucks equipped with standard alarms, while increasing the safety of truck traffic.

For the time being, the bike path installations are temporary, and studies are still ongoing. The final installations will be made once our work is completed, in collaboration with the borough, which is responsible for bike paths and traffic.

It is prohibited to use cross-streets since they aren’t truck routes. If you notice an increase in truck traffic on the cross-streets, we urge you to notify us of it through our customer service, so that we may notify the contractor.

During construction, there may be obstructions in the dog park at certain times. However, the dog park will be maintained after the construction of the bus garage.

The buses will enter and exit by De Gaspé Street before reconnecting with Bellechasse. Secondary exits and entrances are being planned on Saint-Dominique Street, in the event of an emergency or major obstruction on De Gaspé Street.

The plan is to install street furniture, such as picnic tables, garbage cans and benches. We’re also planning to install stands should public events be held.

Numerous construction projects in the area during 2020 have had an impact on traffic flow. Among them are the OMHM’s worksite at the Rosemont Métro station, the construction work on the Rosemont/Van Horne Viaduct, the refurbishment project of Plaza Saint-Hubert, and the installation work for the Saint-Denis EBN. We were united with our partners in setting up mitigation measures to reduce the impact of this work on our bus service.

As well, during 2021, we will continue to follow the development of the bus service operating conditions, in light of the creation of the Saint-Denis EBN, and make any modifications that may be required.


Street closures announced earlier this summer began on September 14. Two street closures will be in place until the work is completed.

  • The south side of De Bellechasse Street is now closed to vehicle traffic between Saint-Dominique and De Gaspé. De Bellechasse is now a one-way street going west between De Gaspé and Saint-Laurent. A detour was set up for drivers. This street closure is needed to allow trucks to access the worksite. Please note that parking is no longer available along this section of the street.
  • De Gaspé Street is also closed along the worksite, between De Bellechasse and Marmier. Buildings, including BIXI, will remain accessible through the parking lot next to BIXI and at other points.
  • The dog park remains accessible.

Inquiries are processed on a case by case basis. To make an inquiry, you must contact our customer service and submit an official complaint. A claim file will be opened with the contractor’s insurer.

We can make vibration data public. To access it, you can make an access to information request to the STM.

As for air quality data, we do not produce any. Air quality is monitored on the spot when workers return to the site after blasting.

There is less dust in winter, and we are evaluating which dust management method to use.

During the construction, the contractor is responsible for planning and managing parking for workers so that maximum parking is available for local residents.Most of the workers park on the worksite.

We have a traffic plan that was approved by the borough, and truck drivers have been informed of the truck routes to use. We are working with the borough and the SPVM to ensure that trucks use the approved routes. We are monitoring this closely to ensure that the instructions given are followed and that trucks do not take residential streets.

In general, the work will take place from Monday to Friday, 7 a.m. to 7 p.m. It can, however, take place on the weekend in accordance with municipal by-laws. To view the borough’s by-law, click here (in French only).

Due to a lack of participation, the good neighbourhood committee will not continue its activities. However, information sessions may be held during the project.

  • We have introduced a traffic maintenance plan, established by a specialized firm, for motorists, pedestrians and cyclists in the area.
  • An inspector will be on the worksite to ensure compliance with regulations on noise levels and work hours.
  • Water spraying will be carried out during demolition and excavation to reduce dust.
  • The metal fences surrounding the worksite have been replaced by wooden partitions. The partitions have been installed on three streets: Saint-Dominique, Bellechasse and De Gaspé.

Learn more about the project


The Bellechasse bus garage will be built on the block formed by De Gaspé Avenue and Bellechasse, Marmier and Saint-Dominique streets in Rosemont–La Petite-Patrie.

The Bellechasse bus garage will be innovative, functional and unique. Once complete, it will be the first bus garage in North America to be fully underground and equipped with the facilities to operate an entire fleet of electric buses.

The centre will have two connecting structures: an underground three-level garage where the buses will be parked and maintained and a one-storey ring-shaped building with lots of windows where administrative offices and employee facilities will be located. The ring-shaped building will also have a fire prevention station and a passenger revenue operational management workshop.

The centre’s operations (bus traffic, maintenance and parking, and employee parking) will be located inside the building to reduce the impact on the neighbourhood.

There will also be a large green space accessible to the public.

The work will take place from spring 2019 to fall 2022. It will be carried out in two phases. The first phase is now completed. It involved preparatory work including building demolition, removal of materials and waste, soil decontamination and excavation of the rock bed.

The second phase will last until to fall 2022, and will involve construction of the new bus garage.

  • Putting buses on the road to provide daily transit service to customers
  •  Performing preventive maintenance and mechanical repairs on buses
  • Charging electric buses
  • Administrative offices and areas for maintenance employees and drivers
  • STM fire prevention station
  • Passenger revenue operational management workshop

Planning the bike path network is the City of Montréal’s responsibility and not the STM’s. We do not have a confirmed design plan at this time.

For the moment, buses will enter and exit on De Gaspé. A secondary, emergency exit has been planned on Saint-Dominique.

The building will have a high-quality environmental design. We aim to obtain LEED v4 Gold certification. The complex will incorporate:

  • Natural light
  • Universal accessibility
  • Building envelope with superior energy efficiency
  • Energy efficient mechanical and heat recovery system
  • Water catchment and recycling
  • Recovery of construction materials, when possible

Once the construction is complete, there will be underground parking spaces for employees working at the new garage.

  • February 5, 2019: the project was presented to residents at an information session
  • February, 19, 2019: Participatory workshop held on the future public green space
  • May 1, 2019: Presentation of the project to the CCU for the PPCMOI
  • June 2019: The borough council of the Rosemont–La Petite-Patrie Borough held a meeting to confirm the PPCMOI and a public consultation was held by the Rosemont–La Petite-Patrie Borough.

The worksite in images

March 2021 - This crawler crane is used to lift and move heavy materials weighing up to 300 tonnes.

March 2021 - The project reached a new stage in recent weeks as the first steel column was installed. This is an important symbolic milestone, as the column is the first piece of the building to be erected.

March 2021 - Formwork is currently underway at the worksite. Forms are temporary structures, often made of wood, that are used as moulds to hold material in place.

March 2021 - Easy to spot at the worksite, this imposing concrete pump has a reach of 61 metres, making it the largest in the entire Montréal area. As the name suggests, it pumps concrete through a pipe and into the concrete mixing truck, which cannot directly access the pouring site.

May 2020 - To date, as part of Phase 1 of the work, one million tonnes of rock have been removed from the 260,000 square foot area that will be the site of the Bellechasse bus garage.

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The project in images

This work is made possible by funding provided by the Ministère des Transports du Québec and Infrastructure Canada.

We are aware of the inconvenience that this work might cause. Rest assured that we will do what is necessary to minimize the impact on our customers.

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