Construction Update

Crews complete jet grouting activities on Rideau Street and the street reopens to bus traffic and taxis. Masonry begins this week at the Lyon Station east entrance and construction advances at the three eastern stations – St-Laurent, Cyrville and Blair – with glazing and porcelain panel installation.

Work at Bayview Station, including grade beams - Travaux à la station Bayview, y compris les poutres sous mur porteur

West Stations

Tunney’s Pasture Station: Crews install caissons and prepare to mobilize to drill rock anchors, part of station foundation construction.

Bayview Station: Crews begin to install grade beams and build foundation walls for the ancillary building. Underground mechanical and electrical work as well construction on the retaining wall also take place this week.

Pimisi Station: Work includes pouring the platform slab, waterproofing walls and installing duct banks.

Waterproofing arch+work on columns-Parliament Station cavern - Imperméabilisation et travaux sur les colonnes dans l'espace souterrain de la station Parlement

Central Stations

Lyon Station cavern: This week, the concourse slab formwork is stripped to allow for the next phase of activities to occur, including pouring the mud slab. Architectural works are ongoing at the station, including the installation of dowels for the stairs and the initial layout of the masonry block walls in the mechanical room. In the west transition, crews continue installing rebar the concourse wall and arch, in addition to working on conduits.

Lyon Station west entrance: The station continues to take shape with crews forming and pouring walls in phases. Construction of the east vent shaft also occurs and includes rock removals.

Lyon Station east entrance: Station construction advances; crews mobilize to begin masonry at the entrance, pour the ground floor beams and lower slabs and continue electrical work on the ground floor slab. The installation of the winter protection is completed at the HVAC shaft and reshoring begins, and rock removals are ongoing.

Parliament Station cavern: Activities include the installation of rebar and concrete pours for the footings, columns and sections of deck in the station, as well as arch waterproofing. In the running tunnel, concrete final lining mobilization, pouring of the pre-slab, and work on the invert and starter wall take place.

Parliament Station west entrance: Construction of the station’s head house advances and includes glazing and work on parapets. Masonry installation also begins this week. Shotcrete and rock bolt installation continue at the east vent shaft.

uOttawa Station-rebar+forming foundation_walls - Progression des travaux sur la fondation, les murs et la dalle à la station uOttawa

Rideau Station cavern: Crews pour concrete for walls, install rebar for the station arch and continue waterproofing, which will be followed by final concrete lining in the next weeks.

Rideau Station west entrance: Shoring, excavation, the installation of reinforcements, including shotcrete, and work on the raft slab occur this week. Excavation is completed and the installation of whaler beams, occurs outside on Rideau Street, at the HVAC shaft.

Rideau Station east entrance: Station construction is progressing with formwork and rebar installation on the inside walls and deck. Crews also install falsework , part of work on the platform stairs.

Rideau Street has reopened for bus traffic and taxis only.

uOttawa Station: Crews continue working on the station foundation and walls through December.

East Portal: Whaler beam installation occurs and crews form and pour slabs to prepare the ramp for future guideway work.

Foundation work-Lees Station - Travaux sur la fondation à la station Lees

East Stations

Lees Station: This week, work includes micro-piling, construction of foundation walls and mobilization to begin building the auxiliary building.

Hurdman Station: The station continues to take shape with the installation of structural steel, glazing and masonry in sections. Ceiling work, roofing, and mechanical and electrical work are also ongoing. Construction of the bus operators’ building advances and includes work on the ceiling.

Tremblay Station: Construction progresses at the station with work on the parapets, steel installation for the elevators, roofing, mechanical rough-ins and final work on the platforms.

Composite panel, glazing and work on auxiliary building-Cyrville Station - Panneaux composites, vitrage et travaux sur le bâtiment auxiliaire à la station Cyrville

St-Laurent Station: Crews continue installing celling hangers and platform steel this week, in addition to ongoing work for the elevators and the plenum.

Cyrville Station: Progress is visible at the station with the installation of metal composite panels and glazing as well as painting and installing porcelain panels on the auxiliary building.

Blair Station: Activities at the station include framing, electrical work, the installation of composite panels and porcelain tiles. Crews install steel and complete roofing work at the bus operators’ building.

Reinforcements-running tunnel west of Rideau Station - Renforcement du tunnel à l’ouest de la station Rideau

Tunnel Excavation and Support

Crews continue mining the last section of running tunnel west of Rideau Station and begin installing spiles, part of tunnel reinforcement activities.

Drilling dowels for crossover tracks east of Tunney's Pasture Station - Les équipes percent les trous pour installer les goujons pour les liaisons sur la voie de guidage à l’est de la station Tunney's Pasture


Tunney’s Pasture Station to West Portal: Crews mobilize onsite to drill dowels for crossover tracks, remove the sidewalk and parapet walls just west and east of Bayview Bridge and continue electrical work along this section of guideway.

Mann Avenue Bridge: Crews continue working on the parapets, wing walls and deck.

Mann Avenue Bridge to Blair Station: Trackwork activities are ongoing and include tamping and the installation of concrete ties west of Tremblay Station. Electrical work for the traction power sub station east of Hurdman Station occurs. Vehicle testing takes place along the guideway between Cyrville and Blair stations.

Upcoming Construction Activities

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

  • Lyon Station west vent shaft work resumes.
  • Last section of running tunnel mining, from east of Parliament Station to west of Rideau Station will be completed.
  • Ongoing overnight work at the Rideau Station west and east entrances, and at the East Portal.
  • Mann Avenue Bridge overnight deck and parapet work.
  • Structural steel installation at uOttawa Station.
  • Installation of the traction power sub station on the guideway west of Lees Station and east of Hurdman Station.
  • Fencing installation on guideway just west of Tremblay Station.
  • Overhead Catenary System energized in phases for ongoing vehicle testing from Belfast Yard and Blair Station.