Construction Update
Week of October 31
With removals completed, crews begin to work on the foundation at Tunney’s Pasture Station. Construction of the guideway continues along various sections of the alignment. In the east, trackwork is installed in sections from just east of Lees Station to the Hurdman Station elevated guideway.
Crews install duct banks at Bayview Station
West Stations
Tunney’s Pasture Station: Preliminary station work continues with caisson and rebar installation. Electrical work also occurs.
Bayview Station: Initial foundation work is ongoing; crews install duct banks and begin mechanical and electrical work. Ground improvement activities also occur.
Pimisi Station: Crews waterproof the lower concourse walls in preparation for the next phase of concrete works. Backfilling, mechanical and electrical work are ongoing.
Waterproofing just east of Parliament Station cavern
Central Stations
Lyon Station cavern: Crews complete formwork and concrete pours, and architectural work begins including construction of the stairs and sub-platform. Station arch and shotcrete final lining are finalized.
Lyon Station west entrance: Crews install rebar and formwork in preparation for pouring station columns. Rock removals also occur.
Lyon Station east entrance: Crews install rebar in anticipation of pouring concrete walls.
Parliament Station cavern: Station L-wall work is ongoing; activities include formwork installation and concrete pours. Crews waterproof the station arch and mechanical and electrical work occurs.
Parliament Station west entrance: Crews finalize work on the parapet wall and begin installing the roof of the head house. At the east vent shaft, crews continue hoe ramming and rock removals during the weekend.
Traffic restrictions on Queen and O’Connor streets remain in effect.
Formwork and slab work at uOttawa Station
Rideau Station cavern: Crews waterproof, install rebar and pour concrete as part of final work on the station invert. Electrical and mechanical work continues along with waterproofing of the station arch.
Rideau Station west entrance: With the roof slab poured, crews prepare for the next phase of works. Preliminary excavation work begins at the HVAC shaft.
Rideau Station east entrance: Concrete work continues at the station entrance; crews pour the elevator walls.
Rideau Street is closed 24/7 to vehicular traffic to permit works to advance.
uOttawa Station: Work on the platform slab continues; activities include formwork, rebar installation and concrete pours. Duct bank installation also occurs.
East Portal: Crews pour the mud slab, continue sheet piling and install reinforcements including whaler beams. Excavation of the ramp and duct bank installation are ongoing.
Progress at St-Laurent Station
East Stations
Lees Station: With the raft slab poured, crews begin work on the platform knee walls including rebar installation and concrete pours.
Hurdman Station: Crews install structural steel and pour concrete for the ancillary building. At the bus operator’s building, exterior finishes and electrical work are ongoing.
Tremblay Station: Crews backfill the platform area and install the roof metal deck. Mechanical and electrical work also occur.
St-Laurent Station: The station continues to take shape; activities include structural steel installation and preliminary work on the station elevators and escalators.
Crews install steel and railbeds at Cyrville Station
Cyrville Station: Crews work on the station roof and elevators, and install structural framing for exterior wall panels. Mechanical and electrical work also takes place.
Blair Station: Station construction continues to advance; crews work on escalators, install exterior wall panels and mechanical and electrical work occur. Crews also install rebar and formwork for the bus operators’ building.
Installing reinforcements in the running tunnel
Tunnel Excavation and Support
Excavation of the final section of running tunnel continues and crews install reinforcements.
Systems installation west of Cyrville Station
Guideway
Tunney’s Pasture Station to West Portal: Backfilling and ballast installation are ongoing as crews construct the guideway. Between Pimisi Station and West Portal, crews continue grading and installing duct banks.
Mann Avenue Bridge to west of Tremblay Station: Crews construct the retaining wall between Lees Station and the Rideau River Transitway Bridge.
Trackwork activities are ongoing between Lees and Tremblay stations including pulling rail and ballast installation. Crews install fencing and duct banks as part of guideway construction.
West of Cyrville Station: Crews continue systems installation in preparation for vehicle testing.
Work on the transition slab at the Bayview Bridge
Other Activities
Bayview Bridge: Reconstruction of the Bayview Bridge is ongoing; crews work on the transition slab.
Mann Avenue Bridge: Crews continue reconstruction of the bridge; activities include formwork and rebar installation in anticipation of concrete pours. Intermittent sidewalk closures may be required during this work.
Upcoming Construction Activities
In the coming weeks, the following construction activities are scheduled to occur:
- Installation of traction power sub station on the guideway near Tunney’s Pasture Station and elsewhere along the alignment.
- Lyon Station HVAC and west vent shaft work resumes.
- Structural steel installation at uOttawa Station.
- Vehicle testing and Overhead Catenary System will be energized in phases along the guideway between Belfast Yard and Blair Station.
http://www.ligneconfederationline.ca/construction/construction-update-97/