Construction Update

Work is finalized on Scott Street - Travaux terminés sur la rue Scott

Scott Street Widening

Final site clean-up takes place along Scott and Albert streets.

Waterproofing in Lyon Station cavern

Lyon Station

Installation of rebar for the foundation slab occurs. Installation of sanitary pipes and electrical/communication conduits, along with waterproofing, begin in anticipation of cavern concrete work in the coming weeks.

Shoring in the southwest parking lot at the Lyon Station west entrance - Travaux d’étayage dans le parc de stationnement sud-ouest, à l’entrée ouest de la station Lyon

Lyon Station West and East Entrance

West Entrance: excavation and related activities such as piling and tieback installations are ongoing.

East Entrance: shoring and utility relocations are ongoing. Formwork, rebar and concrete pouring continue.

Excavating in drifts in Parliament Station cavern - Excavation des galeries d’accès dans l’espace souterrain de la station Parlement

Parliament Station Cavern

Jawbreaker continues excavating the south drift bench, as Chewrocka prepares to excavate the remaining section of the running tunnel from Parliament Station to Rideau Station. Work is ongoing 24 hours a day, seven days a week in the tunnel.

Utility relocations for Parliament Station at Queen and O’Connor streets - - Déplacement des infrastructures des services publics de la station Parlement sur les rues Queen et O’Connor

Parliament Station West and East Entrance

Relocation of gas main begins. Mechanical and electrical removals occur, along with formwork and pouring at the parking levels.

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

Mining the bench in Rideau Station cavern - Excavation de la banquette de l’espace souterrain de la station Rideau

Rideau Station

Mining of the south drift and bench occurs and crews continue pouring starter walls and working on the arch final lining. Waterproofing is ongoing in the running tunnel.

Excavation at Rideau Station east entrance - Travaux d’excavation à l’entrée est de la station Rideau

Rideau Station West and East Entrance

West Entrance: piling is completed and crews demobilize. Mobilization for shoring and shoring begins.

East Entrance: blasting, mechanical rock excavation and line drilling continue.

Traffic restrictions on Rideau Street remain in effect.

Decorative hoarding installed at Tremblay Station - Palissade décorative de la station Tremblay

Hurdman, Tremblay, St-Laurent, Cyrville and Blair Stations

At Hurdman Station, electrical duct bank installations continue, along with initial underground work. At Tremblay Station, excavation is ongoing on the station footings and crews prepare to work on the mud slabs. Crews also mobilize to begin concrete work. At St-Laurent Station, work continues on the installation of duct banks as well as footings. Watermain relocation work is ongoing.

At Cyrville Station, crews finalize formwork and begin pouring the operator building and forming the stairs.

At Blair Station, work on foundation walls including, formwork, rebar and pouring continues. Preliminary works are being completed to begin pouring the escalator pad.

Forming the deck of the Hurdman Station elevated guideway - Construction du tablier de la voie de guidage élevée de la station Hurdman

Guideway construction – Hurdman Station

Crews form the deck, part of elevated guideway work, through to the end of the year.

Formwork at the east D-Ring road next to VIA Rail - Travaux de coffrage sur la voie à l’est de la gare VIA Rail

Guideway construction – Tremblay Station

Crews complete formwork and pour the north abutment wall.

Trackwork activities west of Blair Station - Construction de la voie ferrée à l’ouest de la station Blair

Guideway construction St-Laurent, Cyrville and Blair Stations

Tamping begins at Blair Station heading west. Crews continue installing duct banks and OCS foundations west of St-Laurent Station. Tracks are being installed in sections moving west. Trackwork and ballast placement occur from Cyrville Station to just west of St-Laurent Station.

Exterior panel installation at Belfast Yard - Installation des panneaux extérieurs de l’édifice du chemin Belfast

Belfast Yard Administration and Maintenance Building and Yard

Crews continue installing OCS inside the building. Final architectural works are being completed. Crews finish exterior panel installation and begin pathway paving onsite. Installation of the final ballast begins at the east end of the site. Alstom vehicle tooling work is ongoing.

Backfilling at the intersection of Belfast and Tremblay roads - Remblayage à l’intersection des chemins Belfast et Tremblay

Belfast Yard Vehicle Storage Shed and Connector Works

Pathway paving and installation of OCS take place in the shed. Concrete pours are completed and crews begin drilling dowels as part of trackwork. Installation of the final section of the steel connector roof is ongoing. Signal work is underway at the intersection of Belfast and Tremblay roads to reinstate Tremblay Road to two lanes this week.

Upcoming Construction Activities

The following construction activities are scheduled to occur:

  • In the coming weeks,:
  • Lyon Station west entrance excavation including blasting.
  • Lyon Station east entrance and west shaft construction.


  • In the coming months:
  • Pimisi Station construction.
  • Bus Rapid Transit service adjustment on Scott Street.
  • Booth Street Bridge girder installation and deck work.
  • Preliminary work at Lees Station and Rideau River bridge rehabilitation.
  • Hurdman Station permanent bus loop construction.
  • Deck work at the Hurdman elevated guideway.
  • Deck pours at the Tremblay guideway.