Installation of drainage and sanitary pipes in Lyon Station cavern
Crews install conduits as well as drainage and sanitary pipes in Lyon Station cavern. Rebar installation continues.
Crews spray shotcrete in Parliament Station cavern
In Parliament Station cavern, Jawbreaker mines the central bench and north bench support activities are ongoing.
In the running tunnel, Chewrocka continues mining east (near Metcalfe Street). Tunnel support activities such as shotcrete and rockbolt installation are ongoing.
Excavation in Rideau Station cavern
In Rideau Station cavern, Crocodile Rouge excavates the invert. Initial support activities are ongoing.
In the running tunnel, crews continue concrete pours for the tunnel arch final lining.
Breaking through to the tunnel from Rideau Station east entrance
Downtown Integrated Stations – East and West Entrances – Lyon, Parliament and Rideau Stations
Lyon Station west entrance: line drilling is ongoing and blasting activities begin. Work on the HVAC shaft continues with line drilling and excavation.
Lyon Station east entrance: demolition and concrete work occur at the parking levels. Mechanical and electrical relocations are ongoing.
Parliament Station west entrance: at the parking levels, demolition continues in preparation for future concrete work.
Parliament Station east entrance: work to install interior hoarding continues. Crews pour concrete for piers and columns at the concourse level.
Traffic restrictions on Queen and O’Connor streets switch to the west side of O’Connor Street.
Rideau Station east entrance: crews continue blasting, rock removals and reinforcing the entrance.
Rideau Station west entrance: excavation is ongoing and crews install reinforcements including shotcrete. Preparations for preliminary shoring begin on the north side of Rideau Street for the west vent shaft.
Traffic restrictions on Rideau Street remain in effect.
Forming the walls at Tremblay Station
Hurdman, Tremblay, St-Laurent, Cyrville and Blair Stations
At Hurdman Station, crews excavate and backfill. Preliminary work is ongoing for the permanent bus loop construction.
At Tremblay Station, work on the walls is ongoing and crews begin pouring the high walls in the basement areas. Rough-ins and plumbing work is occurring.
At St-Laurent Station, crews begin formwork for the ceiling slabs on the north side and demolish the platform on the south side. Backfilling and pouring occur.
At Cyrville Station, crews form the walls up to the bridge level and complete the roof on the operators’ building.
At Blair Station, crews pour the ceiling slabs and begin backfilling the east side this week. Electrical and steel installations are also occurring.
Forming the deck at Booth Street Bridge
Guideway – CPR Overpass, Booth Street Bridge and Rideau River Transitway Bridge
Crews install the protection system and begin demolition of the CPR Overpass.
At the Booth Street Bridge, crews form the deck.
At the Rideau River Transitway Bridge, crews continue excavating and rehabilitating the bridge abutments. This work is expected to be ongoing over the next months.
Upcoming Construction Activities
The following construction activities are scheduled to occur:
In the coming weeks:
Pimisi Station caisson installation.
Investigative boreholes on Rideau Street.
Deck work at the Hurdman Station elevated guideway.
Watermain work near St-Laurent Station.
Structural steel erection at Cyrville and Blair stations.
In the coming months:
Tunney’s Pasture bus loop and station preliminary works.
Bayview Station preliminary works.
Excavation of the ramp at West Portal.
Transitway service adjustment from Lees to Laurier stations.
Thanks for this. Excited to see the progress. Very interesting tunnelling under downtown - perhaps a precursor to what we'll see here for the relief line. Ottawa is either marsh or Canadian Shield so by no means is it an easy task.