Construction Update

Caisson installation at Bayview Station - Installation des caissons à la station Bayview

This week, eastern stations continue to take shape as crews pour concrete and install structural steel. Along the guideway, track installation continues between Tremblay and Blair stations, where the vehicle testing will take place as early as the fall. Integrated stations continue to progress with concrete works. In the west, preliminary construction is ongoing at Pimisi and Bayview stations and crews finalize works at the Tunney’s Pasture temporary bus loop.

See below for the full update.

Caisson installation at Bayview Station - Installation des caissons à la station Bayview

West Stations

Tunney’s Pasture Station: crews install light poles and complete electrical connections for the Tunney’s Pasture Station temporary bus loop.

Bayview Station: here you see crews drilling and pouring caissons as part of station foundation work. During lifting operations currently underway, and for the safety of all Bayview pathway users, short-term closures and realignments of the multi-use pathway will be required. Flaggers are on site to assist users.

Pimisi Station: crews install caissons and excavate for station footings.

Formwork in Lyon Station cavern - Installation du coffrage dans l'espace souterrain de la station Lyon

Central Stations

Lyon Station cavern: Here you see preparations for concrete pours. At the West Portal, excavation and reinforcements are ongoing in preparation for future guideway work.

Rebar and formwork installation for L-walls in Parliament Station cavern - Installation des barres d'armature et du coffrage des murs en L dans l'espace souterrain de la station Parlement

Parliament Station west entrance: at the station entrance, crews install rebar and pour the concrete slab and columns. Crews excavate and install reinforcements at street level.

Parliament Station east entrance: crews install formwork, rebar and pour concrete for the station walls. Structural steel installation for the columns begins.

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

Crews mobilize to begin rebar installation at uOttawa Station - Les ouvriers se préparent à installer les barres d'armature dans la station uOttawa

Rideau Station cavern: Crews waterproof the transition east of the cavern. At the East Portal ramp, crews continue piling activities during the day and overnight.

Rideau Station west entrance: crews excavate and install reinforcements. Mechanical work, rebar installation and waterproofing also occur.

Traffic restrictions on Rideau Street remain in effect.

At uOttawa Station, pictured here, foundation work has begun. Crews waterproof and install rebar for the future location of the station elevators.

Structural steel installation at Blair Station - Montage des structures d'acier à la station Blair

East Stations

Lees Station: station foundation work includes drilling and pouring caissons. Demolition of the sidewalks and material removals are finalized.

Transitway pedestrian access from Lees to uOttawa stations remain closed.

Hurdman Station: crews install rebar, pour concrete and complete grading. Crews mobilize to begin structural steel work.

At Tremblay Station, seen here, crews are pouring the station footings, columns and concourse slab. Structural steel and masonry installation occur. Backfilling of the platform area and work on the electrical room are ongoing.

Cyrville Station: crews install the metal roof deck and structural steel. Rebar installation and concrete pours occur at the station concourse level. Crews complete station trackwork including tamping.

At Blair Station, pictured here, the station platform is taking shape and crews install structural steel. Crews are pouring concrete for duct banks, part of station utility work.

Tunnel Excavation and Support

Running tunnel east of Parliament: mining of the running tunnel bench is ongoing.

Caisson installation at the CPR Bridge near Bayview Station - Installation de caissons au pont du CPR près de la station Bayview

Guideway Construction – Tunney’s Pasture Station moving east, Bayview CPR Bridge to Preston Street, Mann Avenue Bridge to west of Lees Station, Rideau River Transitway Bridge to east of Hurdman Station and west of Tremblay Station to Blair Station.

Tunney’s Pasture Station moving east: crews continue preparing the future site of the TPSS just east of the station; activities include line drilling and hoe ramming.

Here you see CPR Bridge near Bayview Station, where caissons are being installed.

Mann Avenue Bridge to west of Lees Station: sewer work is ongoing in preparation for future trackwork along this section of the guideway.

Track adjustments between St-Laurent and Cyrville stations - Alignement des rails entre les stations St-Laurent et Cyrville

Rideau River Transitway Bridge to east of Hurdman Station: crews backfill, remove materials and continue building the retaining wall during daytime and overnight.

Hurdman Station Elevated Guideway: Crews continue work on the parapet walls and the abutments over the next few weeks.

West of Tremblay Station to Blair Station: near Tremblay Station, crews install ballast and pull rail moving west.

Here you see final track alignments being completed between St-Laurent Station and Blair Station in preparation for vehicle testing as early as the fall.

Progress at the Booth Street Bridge - Les travaux se poursuivent au pont de la rue Booth

Other Activities

CPR Bridge near Bayview Station: crews begin constructing the bridge columns.

Here you see Booth Street Bridge where crews continue working on the parapet walls. Electrical installations are ongoing in preparation for the reinstatement of Booth Street as early as September.

Upcoming Construction Activities

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

  • Tunney’s Pasture Station construction.
  • Bayview Station construction and short-term pathway realignments.
  • Blasting at Parliament Station east entrance.
  • Final concrete work in Lyon and Parliament station caverns.
  • Mann Avenue Bridge rehabilitation.
  • Watermain work near St-Laurent Station, along the guideway.
  • TPSS deliveries along the alignment.

Bus operators’ building construction and catch basin/landscaping work at Blair Station.