Roadwork and Projects

This construction project will be carried to restore the Roslyn public stairs, which serve as an exterior public stairway connecting Upper Roslyn Avenue to The Boulevard. The project aims to ensure the safety, accessibility, and long-term preservation of this important public infrastructure.

Project Details

Some fo the key highlights of the project include :

• demolition of the existing staircase structure while preserving the existing surrounding retaining walls;
• reconstruction of a new staircase structure, maintaining an east and west branch layout that is similar to the existing design;
• construction of two additional retaining walls within the central green space to mitigate soil erosion;
• installation of five new 'park style' Washington light posts with their respective underground electrical conduit infrastructure, to enhance safety in the area;
• integration of a bicycle ramp into the concrete stairs, starting along the west side of the lower and middle sections, and continuing along the east side of the upper section of the staircase;
• installation of an aluminium metal handrail on both sides of the staircase, with a single central handrail on the initial staircase section coming from The Boulevard;
• removal of existing vegetation and replanting of all green spaces, with the preservation of select trees.

This project is scheduled to be completed in two phases over two years:

• Phase 1 is scheduled to begin on August 11 and conclude by the week of December 20, 2025. A temporary handrail will be installed on the east side of the staircase to facilitate pedestrian access during the 2025-2026 winter season.
• Phase 2 is planned to begin in spring 2026, weather permitting, and will continue for approximately 15 weeks. This phase will include the installation of new stone cladding, repairs to the staircase walls, landscaping, and the installation of the permanent handrail.

Mobility and Parking

Due to the scope of the construction project, the contractor will need to occupy several public areas for the duration of the work:

• The Boulevard (northbound driving lane): This lane will be used as a material transport zone, an equipment storage container, and a site toilet.
• Belfrage Road: A construction trailer will be placed on this street.
• Upper Roslyn (cul-de-sac): This portion of the avenue will also be occupied.

Starting the week of June 9, preparatory work and the start of rehabilitation work on water and sewer pipes will begin on Greene Avenue between Saint-Antoine and Sainte-Catherine streets.

The project consists of repairing and rebuilding a water main. It will also integrate Westmount Public Works operations. A secondary sewer will be repaired, water connections will be replaced, and utilities and roads will be rebuilt. The approximate duration of the work site is 6 months.

Preparatory Work

From June 9 to 13

• Nature of the work: Exploratory excavations and measurement of water and sewer pipes.
• Greene Avenue: Partial obstructions between Rue Saint-Antoine and Sainte-Catherine Street.
• Sidewalks and buildings accessible at all times.
• No parking in construction areas. Please respect the traffic signs.

Water and Sewer Pipe Rehabilitation Work

From June 16

• Greene Avenue: Complete closure, between Rue Saint-Antoine and Boulevard Dorchester. Local traffic will allow between Rue Prospect and Rue Saint-Antoine.
• Intersection of Greene Avenue and Sainte-Catherine Street: Complete closure for one week.
• Maintaining access to buildings and businesses;
• No parking in construction areas;
• On-site signage will indicate all instructions to follow (detours, speed limits, local traffic, etc.)

From July 20

• Flaggers will be present to facilitate smooth and safe movement as needed.
• Parking spaces will be temporarily used for equipment and to ensure a safety perimeter near the construction site.
• Greene Avenue: Closed between Prospect and Sainte-Catherine streets. Please respect the signs in place indicating detours (Ex: Boulevard De Maisonneuve), local traffic, parking, etc.
• Rue Prospect: Local traffic only.
• Sainte-Catherine Street: Closed between Dorchester Boulevard and Atwater Avenue. Detours to be expected. Local traffic only.

From June 29

• Flaggers will be present to facilitate smooth and safe movement as needed.
• Parking spaces will be temporarily used for equipment and to ensure a safety perimeter near the construction site.
• Greene Avenue: Closed between Prospect and Sainte-Catherine streets. Please respect the signs in place indicating detours, local traffic, parking, etc.
• Rue Prospect: Local traffic only.
• Sainte-Catherine Street: open to traffic.

From September 15

Night work is planned:

• Night of September 15 to 16, between Sainte-Catherine Street and Dorchester Boulevard
• Night of September 20 to 21, between Saint-Antoine Street and Prospect Street. During this period, Greene Avenue will be completely closed to vehicular traffic between Saint-Antoine and Prospect, including the intersection of Greene Avenue and Prospect Street.

In addition to these night interventions, street closures will be implemented:

• Greene Avenue closed between Sainte-Catherine Street and Dorchester Boulevard from September 15 to early November
• Closed between Saint-Antoine and Prospect Streets from late September to early November
• Local traffic only between Dorchester Boulevard and Prospect Street
• Dorchester Boulevard closed westbound between Sainte-Catherine Street and Atwater Avenue
• Flaggers will be present as needed to ensure safety and smooth traffic flow. Some parking spaces will be temporarily used for equipment storage and to maintain a secure perimeter.

From October

• Greene Avenue

  • From early October to early November: Complete closure between Saint-Antoine Street and Prospect Street.

  • Local traffic only between Dorchester Boulevard and Prospect Street.

  • Starting in November: the section between Sainte-Catherine Street and Dorchester Boulevard will be open to circulation on the west side.

  • Road users are asked to respect all temporary signage indicating detours, local access, parking restrictions, and traffic changes.

• Dorchester Boulevard

  • As of October 15: Dorchester Boulevard will be open to circulation on the east side between Sainte-Catherine Street and Atwater Avenue.

Information About the Project

• Work schedule
  • Monday to Friday, 7 a.m. to 7 p.m.
  • Saturday, 8 a.m. to 5 p.m. (if needed)
• Some operations may be postponed or extended due to weather conditions or other constraints.
• The use of construction site tools and other construction equipment may cause odours, dust, noise and vibrations despite all the control measures planned by the team of experts who ensure that disturbing aspects of the construction site are minimized.

Project Site

• Approximate duration: 6 months
• The use of tools and equipment may cause dust, noise, vibrations and certain odours despite all the mitigation measures put in place. Thank you for your patience.

Temporary Interruption of the Water Supply

• A door hanger specifying the date, time and all details will be distributed in advance to affected residents. There will be coordination with businesses to limit the impact on their activities.

Mobility and Active Travel

• Pedestrian walkways to ensure access to homes and other buildings at all times.
• Public transportation service will be maintained, but stops, schedules and routes may be changed. For further information, please contact STM-INFO (514-786-4636) or www.stm.info

Garbage, Recycling and Compost

• Collection schedule: according to the usual schedule.
• Restricted area: Place your trash cans and bins, clearly identified with your address, in the usual location. Containers that are inaccessible to garbage collectors will be moved by the contractor.

Information: 514 872-3777

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Consult the notice from Ville de Montréal

Notice: Preparatory work

Notice: Start of work

 Notice: Starting on August 29

Notice: Starting on September 15

Notice: Starting in October