In Lyon Station cavern, crews waterproof the station arch, and pour the mudslab and centre pillar footing that will form part of the final station. At West Portal, crews excavate the ramp to prepare for future guideway and trackwork.
In Parliament Station cavern, crews excavate the bench and reinforce the cavern. In the last section of running tunnel east of Parliament Station, mining progresses toward Rideau Station cavern. Ongoing tunnel support includes shotcrete and rockbolt installations
In Rideau Station cavern, mining of the central pillar continues, along with cavern support activities. Waterproofing begins on the north side of the station.
Downtown Integrated Stations and Entrances – Lyon, Parliament and Rideau Stations
Lyon Station west entrance: crews continue blasting, material removals and reinforcements. At the west vent shaft, hoe ramming and line drilling take place. At the east vent shaft, mobilization for pile drilling continues.
Lyon Station east entrance: crews continue formwork and rebar installation. Demolition of the slabs continues on the parking levels.
Parliament Station west entrance: crews pour the lower escalator and stair walls. Installation of steel columns and beams for the escalator pit is ongoing. Shoring contractors mobilize.
Parliament Station east entrance: crews install formwork and rebar for columns on the concourse level, and install structural steel.
Rideau Station east entrance: waterproofing and pouring of the mud slab continues.
Rideau Station west entrance: utility relocations and waterproofing take place. Crews continue drilling micro-piles as part of umbrella work.
Tunney’s Pasture, Pimisi, uOttawa, and Lees Stations
Tunney’s Pasture Station: crews remove materials and backfill as part of temporary bus loop work.
Pimisi Station: crews continue preliminary station excavation and material removals.
uOttawa Station: crews continue preliminary removals and mobilization, including fencing and site trailers.
Lees Station: mobilization and demolition of existing structures are ongoing.
Hurdman, Tremblay, St-Laurent, Cyrville and Blair Stations
Hurdman Station: crews install insulation, pour grade beams and continue grading as part of station work.
Excavation and material removals continue as part of permanent bus loop work.
Tremblay Station: concrete pours, waterproofing, rebar installation on footings and duct bank installations occur. Near the west ring road, crews continue concrete work. Sanitary sewer connections occur across Tremblay Road.
St-Laurent Station: crews install formwork, grade beams and begin pouring concrete for the direct fixation track. Track installation begins in the station.
Cyrville Station: crews continue electrical work, backfilling, rebar and structural steel installations. Work on the roof of the auxiliary building is ongoing. Track installation begins in the station.
Blair Station: crews complete suspended slab pours and begin pouring approach slabs. Backfilling, waterproofing and installing structural steel are ongoing.
Guideway Construction – Booth Street Bridge, Hurdman Station and Tremblay Station to Blair Station
Booth Street Bridge: crews finalize formwork and rebar installations in preparation for concrete pours.
Hurdman Station Elevated Guideway: crews install formwork and rebar in preparation for concrete pours.
Tremblay Station to Blair Station: guideway activities continue including ballast tamping from Blair Station to past Cyrville Station as well as duct bank and OCS foundation installations east of Belfast Yard. Crews continue pulling rails at St-Laurent Station moving west.
Upcoming Construction Activities
The following construction activities are scheduled to occur:
In the coming weeks:
- Installation of caissons at Bayview Station.
- Final waterproofing and concrete work in Parliament Station cavern.
- Excavation of the ramp at East Portal.
- Mann Avenue Bridge rehabilitation.
- Watermain work near St-Laurent Station, along the guideway.
- Watermain relocation at Cyrville Station.
- Bus operators’ building construction at Blair Station.
In the coming months:
- Tunney’s Pasture Station construction.
- Bayview Station construction.
- Pimisi Station construction.
Did you know?
Did you know tunnel crews are regularly trained on tunnel safety procedures? OLRT-C has its own tunnel rescue team and dedicated tunnel rescue trainer. We have detailed safety procedures and practices, including the use of electronic tracking devices and self-contained self-rescuers available for every person in the tunnel.
The safety team also conducts regular safety drills and emergency evacuations to ensure worker safety.