Progress of construction this week includes the first structural steel installation at Tunney’s Pasture Station and the upcoming installation of the platform topping at Blair Station. Ongoing architectural work ramps up this week at Lyon Station with the addition of wall tiling at the east entrance. In the east, the energization of the Overhead Catenary System (OCS) and train testing expands west from Cyrville to St. Laurent Station.
Tunney’s Pasture Station
Shoring for the concourse slab has begun at Tunney’s Pasture Station, along with the first installation of structural steel. There is the continuous pouring of concrete for the foundation walls and slabs, and crews prepare to begin falsework activities for the concourse.
Construction advances with ongoing rebar and formwork installation as part of concrete work and pouring of the remaining concourse slabs. Crews continue to work on the west side of the station, advancing the progress of the platform slabs and structural steel. In addition, the installation of the ancillary building roof begins this week.
The station continues to take shape with the progress of concrete slab pours and structural steel installation. Also ongoing this week is falsework for the upper concourse west structural slab, as well as mechanical and electrical rough-in work. Roofing parapet installations begin this week.
Lyon Station cavern
In the cavern, wall grouting is complete and architectural work advances with floor tiling and the completion of door and hardware installations towards the end of the week. The continued installation of escalators and elevators is also occurring.
Lyon Station west entrance
Crews continue excavation activities at the Lyon west vent shaft and curing walls at the west entrance. At the end of the week, initial architectural work for the storefront concludes and roofing begins.
Lyon Station east entrance
Progress is visible this week at the Lyon Station east entrance with the completion of the mechanical and electrical rough-ins, as well as the completion of the elevator installation. At the mezzanine level, wall concrete curing continues to take place with the new addition of waterproofing. Escalator delivery is ongoing and architectural work ramps up with continued floor tiling and the beginning of wall tiling.
Parliament Station west entrance
Concluding this week at the west entrance is the forming and pouring of the HVAC trench, along with rock support, shotcrete and rock bolt installation at the integrated entrance. Work for the escalators and stairs advances and rebar installation begins for the HVAC walls at the end of the week.
Parliament Station east entrance
Rebar installation for the east and west walls is complete to allow the wall forming and pouring to occur. Rebar installation for the stairs also begins this week.
Rideau Station cavern
Work on the invert continues as part of construction in the cavern, along with arch waterproofing and rebar installation. Concrete pours take place and rebar installation advances for upcoming concrete pours.
Rideau Station west entrance
At the west entrance, the waterproofing of the invert concludes in conjunction with the construction of the bulkhead to prepare for upcoming invert rebar work.
Rideau Station east entrance
This week, concrete curing and the removal of shoring for the escalators takes place, along with the pouring of the station’s east wall. Falsework and rebar installation is completed for the north trench to allow for concrete pours to occur and falsework for the south roof slab concludes but is ongoing for the north slab.
The final lining of shotcrete near the Rideau Station transition occurs along with the renewal work of rebar installation and concrete pours on the west and east walls of the ramp.
At the station this week there is noticeable progress with the installation of structural steel and work on the service trench. There is also the ongoing construction of concrete works and roofing and framing for future porcelain panel installation at the concourse level.
Removal of shoring beings at the station along with the next phase of structural steel work. The installation of masonry on the ancillary building, and rebar, formwork and concrete pours in cycles for the upper concourse area progress as well. Mechanical and electrical rough-ins at concourse level also advance this week.
Ongoing concrete pours for the suspended slabs, framing, structural steel installation and escalator and electrical work take place this week. The installation of the south escalator is complete and the bus operator building is nearing completion to turn over to OC Transpo.
At Tremblay Station, crews continue installing composite panel framing, porcelain panels and elevators. The installation of signband conduit and cast-in-place concrete is progressing and structural steel painting is finished. Skylight framing and glazing commences in the upcoming week.
The station continues to take shape with the completion of the plenum roofing and masonry. Precast concrete stair work occurs and the platform level electrical and sprinkler installation at the concourse continues as well.
This week, construction includes glazing, station signage, precast concrete work and signband conduit installation. Crews mobilize for upcoming work on the platform topping and landscaping.
Ongoing at the station is the installation of hardware and doors, painting and glazing. Final platform finishes and light fixture installation occur as well. Precast concrete stairs and porcelain panel installation is finished this week and the installation of the platform topping is upcoming.
Guideway and Trackwork
The guideway continues to take shape along the alignment: Overhead Catenary System poles are being installed just west of Bayview station moving east to Pimisi Station, and rails are being pulled and dowels installed in the tunnel moving east. In addition, trackwork activities occur just east of uOttawa Station to Hurdman Station, including pulling rail and ballast tamping. The energization of the OCS and train testing has advanced west from Cyrville to St. Laurent Station.
Upcoming Construction Activities
In the coming weeks, the following construction activities are scheduled to occur:
- Hoe ramming as part of work on the western section of the guideway.
- Ongoing overnight work at the Rideau Station west and east entrances, and at the East Portal.
- Next stage of work at uOttawa Station requiring overnight lane restrictions.
- Final work on the pedestrian tunnel at uOttawa Station.
- Hydro connection work to Hurdman Station requiring lane restriction on Riverside Drive.
- Manhole work as part of guideway activities at intersection of Riverside Drive and Tremblay Road, requiring lane restrictions.
- Fencing installation on guideway just west of Tremblay Station.
- Systems installation along the guideway, including Overhead Catenary System poles and wires.
- Elevator installation at uOttawa Station.
- Masonry at the ancillary building at Bayview Station.
- Electrical and communications room installations at Lees Station.
- Next stage of work at Tunney’s Pasture Station requiring right hand turn lane restrictions.
- Switch-over of Hurdman bus loop to permanent bus loop
- Watermain work on guideway at St. Laurent requiring overnight short-term closure of on-ramp.