Construction Update

Booth Street has reopened between Albert Street and the Sir John A. Macdonald Parkway. Motorists, pedestrians and cyclists should note that the Preston Street extension between Albert Street and the
Sir John A. Macdonald Parkway is now closed. In the downtown area, work ramps up in
Lyon Station cavern, where crews have begun architectural works.

Crews work on the foundation at Pimisi Station - Les ouvriers travaillent sur les fondations de la station Pimisi

West Stations

Tunney’s Pasture Station: Crews continue station demolition and removal of old structures in preparation for preliminary station construction.

Bayview Station: Crews continue foundation work, ground improvement activities and preliminary construction of the ancillary building. The north-south multi-use pathway will close by end of week and an alternate route will be implemented.

Pimisi Station: Work on the station footings, walls and foundation continues; activities include rebar and formwork installations as well as concrete pours. Mechanical and electrical installations are ongoing.

Coffrage installé sur le mur en L de l'espace souterrain de la station Parlement

Central Stations

West Portal: Ramp renewal work, including excavation and reinforcements, is ongoing.

Lyon Station cavern: Station concourse work is ongoing and activities include rebar installation, formwork and concrete pours. Shotcrete final lining work continues.

Lyon Station west entrance: The station continues to progress, as crews backfill and pour concrete for the mud slab. Mechanical and electrical installations are ongoing.

Lyon Station east entrance: Work is ongoing at the parking level; crews install rebar, formwork, and pour concrete for the walls. Crews prepare to install structural steel. At the east vent shaft, rock removals are ongoing.

Parliament Station cavern: Crews install rebar and pour concrete for the station slab and L-walls. Mechanical and electrical installations also occur.

Excavation at Parliament Station west entrance - Excavation à l'entrée ouest de la station Parlement

Parliament Station west entrance: Final work occurs on the station head house, including pouring the deck and installing the railing. Crews also install rebar and pour concrete columns on the parking level. Foundation wall removal and masonry installation are ongoing. At the east vent shaft, line drilling and rock removals occur.

Parliament Station east entrance: Crews install structural steel near the station entrance. At street level, crews continue reinforcements, rock removals and mobilize to begin line drilling by the end of the week.

Traffic restrictions on Queen and O’Connor streets remain in effect.

Rideau Station cavern: Crews waterproof, install rebar and pour concrete for the station L-walls and invert.

Concrete work at uOttawa Station - Coulage de béton à la station uOttawa

Rideau Station west entrance: Crews pour the concrete raft slab and install formwork for the roof. Drilling and jet grouting occur.

Rideau Station east entrance: Crews install formwork and rebar for the station walls in anticipation of concrete pours.

East Portal: Crews continue piling activities and mobilize to begin excavation of the ramp by the end of the week.

Traffic restrictions on Rideau Street remain in effect.

uOttawa Station: Crews work on the station’s suspended slab and walls; activities include waterproofing, rebar installation and concrete pours.

Crews pour concrete on the concourse level at Tremblay Station - Les ouvriers coulent du béton au niveau du hall de la station Tremblay

East Stations

Lees Station: Preliminary station work continues and includes duct bank installation and excavation.

Hurdman Station: At the station, crews install rebar, dowels and pour the concourse floor slab. At the bus operators’ building, work continues on the roof.

Tremblay Station: Station construction progresses and includes work on the parapets, canopy footings and installation of structural steel. Trackwork activities begin in the station.

Progress at Cyrville Station including work on the auxiliary building - Progression des travaux à la station Cyrville, notamment la construction de l'édifice auxiliaire.

St-Laurent Station: Crews continue work on the station elevators; activities include rebar installation and concrete pours. Electrical, masonry and Overhead Catenary System installations also occur. Work on the hydro room is ongoing.

Cyrville Station: Rebar, mechanical and electrical installation continue as part of work on the station concourse level. Work on the station roof, parapets, and auxiliary building is ongoing.

Blair Station: Crews continue working on the roof, soffit and install exterior wall panels. Hardscaping activities, including utility, catch basin, parking, curb and sidewalk construction, are ongoing. Electrical work also occurs.

Excavation and reinforcements in the running tunnel - Travaux d'excavation et de renforcement dans le tunnel ferroviaire.

Tunnel Excavation and Support

Excavation and installation of reinforcements are ongoing in the running tunnel.


Tunney’s Pasture Station to West Portal: Preparation for the Traction Power Sub Station installation just east of Tunney’s Pasture Station continues; activities include excavation and formwork installation. Crews continue installing granular and OCS foundations along this section of the guideway.

Mann Avenue Bridge to west of Lees Station: Welding and sewer work continue on this section of the guideway. Crews mobilize to begin ballast wall installations in sections.

Rideau River Transitway Bridge to Blair Station: Crews install ballast, pull rail and continue welding between Rideau River Transitway Bridge and Tremblay Station. Crews complete final trackwork, and systems and cabling installation occur from just east of Tremblay Station to Blair Station.

Caisson installation at the Mann Avenue Bridge - Installation des caissons sur le pont de l'avenue Mann.

Other Activities

CPR Bridge near Bayview Station: Reconstruction of the bridge continues and includes work on the pier caps, abutments and ground improvement activities.

Mann Avenue Bridge: Crews continue installing caissons as part of bridge reconstruction work.

Upcoming Construction Activities
In the coming weeks, the following construction activities are scheduled to occur:

• Station work at Tunney’s Pasture Station requiring lane restrictions.
• Blasting at Parliament Station east entrance.
• Weekend demolition of the Mann Avenue Bridge and full closure of the roadway.
• Structural steel installation at Hurdman Station.
• Watermain work near St-Laurent Station, along the guideway.
• Vehicle testing and Overhead Catenary System to be electrified in phases at Belfast Yard and along the guideway between Blair and Tremblay stations.
• Traction Power Sub Station installations along the alignment.