Construction Update

At uOttawa Station, the station begins to take shape with crews completing a large concrete pour for the suspended slab. At the integrated entrances, to date crews have poured more than fifty percent of the concrete required.

Concrete work on the walls at Pimisi Station

West Stations

Tunney’s Pasture Station: Construction of the station foundation is ongoing; crews continue installing rebar for station footings and begin caisson work.

Bayview Station: Caisson installation is finalized as part of initial work on the ancillary building. Duct bank installation, sewer work and ground improvement activities are ongoing. The next phase of station construction begins as crews mobilize to install rebar and formwork.

Pimisi Station: Crews backfill, install duct banks and continue mechanical and electrical work. Construction of the station’s lower concourse level is ongoing; crews waterproof and continue concrete work for station walls.

Lyon Station cavern concrete work

Central Stations

West Portal: Crews continue excavation of the ramp and install reinforcements.

Lyon Station cavern: Construction progresses at the station concourse level; crews install rebar, formwork and pour the concrete deck. Arch final lining pours and shotcrete final lining work continue.

Lyon Station west entrance: Construction of the station walls and stairs progresses; activities include waterproofing, rebar and formwork installation as well as concrete pours. By the end of this week, crews resume work at the Lyon Station HVAC shaft and activities include rock removals.

Lyon Station east entrance: At the station concourse level, crews install rebar and pour concrete for the walls and columns. At the east vent shaft, crews complete reinforcements and remove rock.

Parliament Station cavern: Crews continue station concrete work; activities include rebar and formwork installation. Electrical work and waterproofing of the station arch are ongoing.

Parliament Station west entrance: Crews complete structural steel installation and finalize the construction of the escalator walls. At the east vent shaft, crews continue work during the weekend; activities include hoe ramming and rock removals.

Rebar and formwork installation at uOttawa Station

Parliament Station east entrance: At the concourse level, crews have removed the foundation wall and continue structural steel installation. Crews begin blasting and continue rock removals at street level.

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

Rideau Station cavern: Crews install mechanical and electrical work and continue waterproofing of the station arch and invert. Rebar installation and concrete pours are ongoing as part of station L-wall work.

Rideau Station west entrance: Work on the station roof slab continues; crews waterproof, install rebar and formwork and pour concrete.

Rideau Station east entrance: Construction of the concourse level is ongoing; crews install rebar, formwork and pour concrete for the walls.

Rideau Street is closed nightly to all vehicular traffic to permit further works related to the tunnel under Rideau Street.

uOttawa Station: Excavation for station footings and concrete work on station walls are ongoing. Crews install rebar and formwork in preparation for concrete pours that will occur overnight on October 14. Future overnight closures of the pedestrian tunnel are anticipated in the coming weeks.

East Portal: Excavation and installation of reinforcements on the ramp occur in preparation for future guideway work.

East Stations

Lees Station: Crews install rebar, formwork and prepare to pour the raft slab. Electrical and sewer work are ongoing.

Hurdman Station slab pours

Hurdman Station: Construction of the station advances; crews pour the concourse floor slab and install structural steel. Crews begin internal finishes, continue electrical work and install the roof at the bus operators’ building.

Canopies installed at Tremblay Station

Tremblay Station: Crews continue pouring concrete and installing structural steel. Work on the roof metal deck and station canopy are finalized.

St-Laurent Station: Crews begin installing station escalators and elevators and continue work on the mechanical room. Preparations begin to install structural steel.

Cyrville Station: Crews continue construction of the parapets and station roof. Work begins on the station elevators. At the auxiliary building, crews begin installation of exterior wall panels and electrical work is ongoing.

Blair Station: Crews continue roof, exterior wall panel and soffit installation. Mechanical and electrical work are ongoing. Crews complete excavation and begin rebar installation for footings at the bus operators’ building. Removals occur at the permanent bus loop.

Tunnel Excavation and Support

Work continues in the running tunnel; excavation and installation of reinforcements occur.


Tunney’s Pasture Station to West Portal: From Tunney’s Pasture to Merton Street, crews continue installing Overhead Catenary System foundations during the day and overnight. Between Merton Street and West Portal, guideway work including removals, excavation and installation of ballast are ongoing. Trackwork also continues in sections and activities include pulling rail.

Mann Avenue Bridge to west of Tremblay Station: Crews install duct banks, fencing and ballast as construction of the guideway progresses in sections. Trackwork activities including pulling rail and pouring dowels are ongoing between Rideau River Transitway Bridge and Tremblay Station.

Belfast Yard to Blair Station: Installation of systems and cabling will continue in the coming weeks in anticipation of vehicle testing later this month.

Other Activities

Bayview Bridge: Crews continue reconstruction of the bridge; activities include work on the approach slab and concrete overlay.

CPR Bridge near Bayview Station: Crews pour concrete pier caps and work on abutments. Reconstruction of the bridge will continue until the end of 2016.

Mann Avenue Bridge: With removals and demolition complete, reconstruction of the bridge begins as crews work on abutments, pier caps and install girders.

Upcoming Construction Activities

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

  • Tunney’s Pasture Station work requiring right turn lane restriction.
  • Delivery of traction power sub station on the guideway near Tunney’s Pasture Station.
  • uOttawa Station work requiring intermittent closures of the pedestrian tunnel.
  • Structural steel installation at uOttawa Station.
  • Mann Avenue Bridge work and overnight lane closures.
  • Vehicle testing and Overhead Catenary System will be energized in phases along the guideway between Belfast Yard and Blair Station.
  • Traction power sub station installations along the alignment.