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Stage 2 - Confederation Line - Construction Updates

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Stage 2: Extending the O-Train South, East, and West

Confederation Line East Extension - Construction Update 

November 03, 2020

In the east, Highway 174 road and utility relocation work is ongoing to make way within the centre median for LRT infrastructure. Bridge construction is underway at the East Rail Flyover Bridge, and on two new highway overpasses at the Montreal Interchange.

Highway 174 Roadworks between Blair Road to Place d’Orleans area

  • Westbound traffic has been rerouted around the future East Rail Flyover Bridge worksite. This configuration will be in place until 2021.
  • Eastbound lane reconfiguration continues east of Sir George Etienne Cartier Parkway to Place d’Orleans. The first area of focus will be the widening at Orleans Boulevard Overpass. Widening towards the median, eastbound and westbound is required in an effort to start the utilities work. This operation will take place later this fall.
Pictured Above: Aerial view of the new Highway 174 westbound lanes between Blair Road and Montreal Road.

Flyover Rail Bridge (East of Blair Road)

  • Pier column concrete pouring is underway.  

Highway 174 MontreaAerial view of the new Highway 174 westbound lanes between Blair Road and Montreal Road.l Road Interchange

  • The eastbound overpass bridge deck concrete pour is complete. Work on the westbound bridge is ongoing with the deck pour anticipated to be completed in October.
  • On-ramp and off-ramp excavation, embankment, and grading works continue.
  • North to east and south to east ramp construction is underway. Ramps will be completed the last weekend of November.
Pictured Above: Work on the new Highway 174 bridges at Montreal Road continues. Crews recently poured concrete for the eastbound bridge.

Utility Relocation - Champlain Avenue at Highway 174

  • Drainage pipe and manhole installation are ongoing. 
Pictured Above: Drainage pipe and manhole installation are ongoing near Place d'Orleans.

Trenchless Culvert Work along Highway 174

  • Work is underway in the area of Jeanne d’Arc and will later move to various locations between Sir George-Étienne Cartier Parkway and Champlain Street. Work is scheduled to occur during daytime and overnight hours.

Trim Park and Ride

  • Drainage work is ongoing in the northeast section of the parking lot.
  • Watermain work is ongoing in the existing parking lot.
  • Soil stripping and excavation is anticipated to begin shortly on the new eastbound off-ramp and site access roads.
Stage 2: Extending the O-Train South, East, and West

O-Train West Extension - Construction Update

November 3, 2020

In the west, work at the Moodie Light Maintenance and Storage Facility, Queensview, Iris, Lincoln Fields, and Byron Linear Park is ongoing, including construction of the Lincoln Fields Flyover rail bridge.  Cut and cover tunnel construction has commenced on the Parkway Tunnel. Preparatory works have also begun at the Holly Acres and Pinecrest 417 interchanges.

Moodie Light Maintenance and Storage Facilirt

  • Storm sewer relocation on the east side of Stillwater Creek is ongoing.
  • Moodie watermain work to begin end of October.

Holly Acres Highway 417 Interchange

  • Bridge column pouring is ongoing.
  • Drill rig operations for central pier shafts are ongoing.
Pictured above: Bridge work is underway at Holly Acres Road and the West Transitway. The Holly Acres Rail Bridge will allow for the O-Train to cross over Holly Acres Road.

Pinecrest Station Area

  • Excavation is ongoing in the northeast quadrant of Highway 417 and Pinecrest Road.
  • Crews have started access road preparatory works, soil stripping and excavation.
  • Excavation is ongoing in the northwest quadrant of Highway 417 and Pinecrest Road.
  • Southwest ramp extension work has started.

Baseline Station Area

  • Storm sewer, drainage and roadwork in the future bus loop area has started. This work will require overnight dewatering activities.

Iris Station Area

  • A detour for eastbound and westbound Iris Street traffic is open.
  • Culvert work is underway.
Pictured above: Crews wrapped up the Iris Street detour in mid-October. This detour will allow traffic to be shifted away from the south work zone where culvert construction will continue.

Lincoln Fields Flyover Rail Bridge (south of Lincoln Fields)

  • Pedestal (base of a support column) construction is complete.
  • Bridge girder installation and retaining wall construction are ongoing.
Pictured above: Girder installation is underway at the Lincoln Fields Flyover.

Connaught Cut and Cover Tunnel

  • Watermain relocation work has begun.
  • Sewer relocation work along Connaught Avenue is ongoing.
  • New access to OC Transpo facility is complete.

Lincoln Fields Station Area

  • Carling Avenue storm sewer is being relocated.
  • Temporary traffic realignments are in place on Carling Avenue as work progresses.
  • Temporary bus loop construction continues.
  • Excavation is ongoing north of the future station.
  • Utility work and rock breaking are underway on the north side of Carling Avenue.

Byron and Richmond Corridor (Byron Linear Park)

  • Storm sewer and drainage work is now underway.
  • Underground utility relocation is ongoing on Byron Avenue.
  • Hydro relocation work on Richmond Road near McEwen Park is ongoing.
  • Cylinder piles are being drilled to support cut and cover excavation. This work is progressing from New Orchard Station eastward to Woodroffe Avenue.
  • Select eastbound bus stops on the southside of Richmond Road between Richardson Road and Cleary Avenue have been temporarily closed.

Rochester Field and Sir John A. Macdonald Parkway (SJAM)

  • Utility relocation is complete on Skead Street and Fraser Ave. Work continues on Mansfield Avenue.  
  • Construction of slurry pits are complete.
Pictured above: Slurry pit construction is complete at Rochester Field laydown site, located south of the Sir John A. Macdonald Parkway and north of Richmond Road.

Goldenrod Bridge (west of Tunney's Pasture Station)

  • Excavation, rock breaking and abutment pouring for the new bridge are upcoming.
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Our Snapshot updates have resumed, now starting coverage for Stage 2 LRT construction. New to Snapshots will be video walkthroughs, discussing the current locations and what will be changing, a

The eastbound detour lanes on the 174 are now open. Shouldn't be long before the westbound detour opens as well to allow crews to build the flyover. 

I agree. It would have been better to sacrifice Convent Glen, surrounded by car-centric suburbia, in favour of a station at Jasmine Crescent. 

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The new 174 overpasses over Montreal Road are now open. Significant progress on the Gloucester High flyover, with most piers now complete and work on the ramp (which will bring the flyover down to the highway median) has started. 

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That’s great news and exciting. I had gone through last weekend during the westbound closure and the eastbound was already routed over the new overpass. 

It will certainly be interesting to see them demolish the old overpass and open up the middle to start construction.

Thanks for sharing. 

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Stage 2 Crews preparing to demolish Highway Montreal Bridge

November 26, 2020


Over the past year, residents in Ottawa’s east end have seen a great deal of transformation between Blair Road and Trim Road as part of the Stage 2 LRT O-Train East Extension.

The main objective in 2020 has been relocating infrastructure in the Highway 174 corridor to set the stage for track and station construction in the median. Crews have been busy relocating highway lanes and access ramps. Early relocation efforts have allowed for construction to begin on permanent structures. Columns are being built at the East Flyover and two new bridges have been constructed at the Highway 174 Montreal Road interchange following the relocation of seven highway ramps.

This year’s grand finale will take place at the Highway 174 Montreal Road interchange when crews demolish two bridges to make way for the future Montreal Station.

4972f1c7-8b60-4470-b995-c60f7f960dd9.jpgHow will the bridges be demolished?


Bridge demolition does not include a wrecking ball, or dynamite and a charger that Wile E. Coyote might have considered if he were responsible for the demolition, but rather a strategic approach to safely dismantle the old bridges over the course of a weekend.

The first step of bridge demolition will be closing off access to pedestrians, cyclists and motorists by securing the area with fencing. Montreal Road will be completely closed beneath Highway 174 for a full weekend, from Friday December 4 at 8:00 PM until Monday December 7 at 5:00 AM.  This includes the two vehicular lanes in each direction, pathways, and transit service under the bridge.

There will be lots of signage in the area advising the public of the closure and where to detour to get from one side of the bridge to the other.  A shuttle service, operating every 5 minutes, will provide a pedestrian connection from one side of Montreal Road to the other. Considering the anticipated travel times, average travel times will be increased by approximately 10 minutes.

Once the site has been safely secured, demolition will begin on the two bridge decks in the middle, working outwards towards the edge. Construction machinery on top of the bridge will chip away at the top of the deck. Once the deck has been removed, the skeleton of the old bridge (steel girders and beams) will be taken down by excavators with hydraulic shears.  To complete the works, the centre piers will also be removed.


Once the road below has been cleaned of any debris, fencing and barriers are removed, lines are repainted and Montreal Road is reinstated for public use.


  • 1,456 m3 of concrete to be demolished.
  • 160 metric tonnes of steel to be removed.
  • Various pieces of large construction equipment fitted with hydraulic hammers, buckets, forks and shears.
  • 2 water trucks will also be on-site for dust control.

Montreal Road Station

The platform of Montreal Road Station will be in the median of Highway 174, above Montreal Road where the bridges that were demolished were located.  The platform spans above Montreal Road with bus stops located on both sides of Montreal Road beneath the station.


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This video was filmed today, Dec. 10, 2020.

It shows the progress on the Flyover Bridge East of Blair Station. First, you can see the works as filmed from the Westbound Lanes, and then from the Eastbound lanes. It was filmed by my passenger.

The Fly Over Bridge is the first major feature of the East Extension after Blair Station (going East). As it rises from the ground, it starts to reveal its true magnitude. Pillars are visible and a long slope is being created to smoothly take the train to the level of the Highway.

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Thanks for posting Phil!

15 hours ago, Edison53 said:

Cool. When does work begin to connect this to Blair station? As far as I know, that hasn’t started yet.

Not sure, but I assume they will be need to complete the new rail flyover, restore the highway with new bus lanes and demolish the old Transitway flyover before they start construction at Blair. My best guess would be Spring 2022. 

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We visited the site of the future Queensview station today. Other than construction fencing, absence of trees and dirt, not much to report. We didn't think it was worth taking pics.

At Pinecrest I think there was a pile driver between the westbound on ramp and the Queensway, but that was it.

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2020 Year-end Review

January 2021

The Stage 2 LRT team has made progress in 2020 building the O-Train East, West and South extensions that will add 44 km of new rail and 24 new stations to the Ottawa’s light-rail network.

O-Train South Extension

Significant progress was made in 2020 for the O-Train South Extension, one of three major extensions to Ottawa’s Stage 2 LRT system. Since the provincial government mandated the continuation of essential transit infrastructure projects during the COVID-19 pandemic, crews have continued to forge ahead with the construction of this complex project, maintaining its priority on safety, collaboration and innovation.

The O-Train South Extension will add 16 kms of new track to the current portion of the O-Train Line 2, which runs from Bayview Station to Greenboro Station. Work includes adding passing tracks at South Keys and double tracks south of Leitrim to Limebank Road. Four kilometres of new track with two elevated guideways will provide a new link to the Macdonald-Cartier International Airport. The project is scheduled for completion in 2022.

Construction progress in 2020 by the numbers

  • Approximately 23 active construction work zones are in effect.
  • 6.3 km of original track has been removed and 1.5 km of new track has been laid.
  • 55 caissons have been drilled; only 9 caissons are remaining for completion.
  • 12 new rail bridges are under construction including 2 that have been completed.
  • 5 rail bridge decks have been poured.
  • 81 utilities have been relocated.
  • The first new Stadler FLIRT train carshells have been manufactured.
  • Construction on 4 new stations has commenced.
  • Upgrades on 3 existing stations is ongoing.


Key Milestones: Construction of new & upgraded stations

The existing portion of Line 2 will see two new stations added: Corso Italia and Walkley. The platforms of the current five stations at Bayview, Carling, Mooney’s Bay, Dows Lake and Greenboro will be extended to accommodate longer, larger capacity trains. The new South extension of Line 2 will add four new stations at Leitrim, Bowesville and Limebank as well as at South Keys which will serve as the transfer station to the Airport. The four-kilometre link to the airport will add two new stations at the Airport Terminal and at Uplands, adjacent to the EY Centre. Three new pedestrian bridges will also be built to improve connectivity at Bayview Station, over the Rideau River at Carleton University and at Hunt Club Road. 

Pictured above: Airport elevated guideway progress, November 2020.

Construction of the Walkley Yard MSF – the new home for the trains

The new Walkley Yard Maintenance and Storage Facility (MSF) is a key feature in the Stage 2 South Extension. Trains will be cleaned, inspected, maintained, stored and operated from the yard. This includes the existing six Alstom Coradia Lint Trains that will be fully refurbished, along with seven new Stadler FLIRT trains.

Construction of the new Walkley Yard is well underway. After only breaking ground last year, the 200-tonne exterior shell is nearly complete and track installation has begun. The new Walkley Yard will be a 4,700 m2 LEED certified facility that will consist of two train maintenance bays, a two track train inspection facility, a train wash facility, 1800m of ballasted track, and 500 metres of interior track within the facility.

Pictured above: Walkley MSF November 2020.

Contributing to our community

The construction of the O-Train South Extension is a critical part of the post-COVID economic recovery for the National Capital Region. Here’s how the construction of the O-Train South Extension is making a difference this year:   

  • The creation of 562 project jobs as of October 2020 with approximately 80% of these workers based in Ottawa, and it is expected to peak at 800 project jobs in 2021
  • TransitNEXT awarded over 342 orders to 152 local suppliers, representing a local spend of over $82 million
  • Building the LRT link to the Airport will help rebuild the tourism industry in the National Capital Region as a gateway to Ontario and Canada
Pictured above: Aerial view of the future Corso Italia Station.

O-Train East Extension

The O-Train East extension will see LRT continue from Blair Road to Trim Road, adding 12.5 kilometres of rail and 5 new stations to the O-Train network at Montreal Road, Jeanne d’Arc, Orleans Boulevard, Place d’Orleans, and Trim Road. The east extension will travel predominantly within the median of OR 174.

One of the critical objectives in 2020 was the relocation of infrastructure including various utilites such as sewers, hydro lines, watermains, natural gas and telecommunications infrastructure in the Highway 174 corridor at Green's Creek, Jeanne d-Arc, Orleans  and Champlain Street to set the stage for the future track and station construction in the median.

Significant ramp modifications occurred at the Jeanne d’Arc Interchange where vehicle access to Highway 174 has been changed. The existing westbound on-ramps were removed and the southbound and northbound lanes of Jeanne d’Arc Boulevard now have signalized right turns. This will help reduce speeds and increase safety for all road users and create greater connectivity for all modes of transportation.

Further to the critical utility relocation work and road preparation work between Trim Road and Jeanne D’Arc, travellers along the 174 will have witnessed significant and intensive construction activity between Blair Station and Montreal Road. In order to connect trains from the existing transit alignment on the north side of the highway into the median itself, a new dedicated rail bridge is being constructed 800m east of the Highway 174 and Blair Road interchange and the existing bus transit bridge, south of Trillium Park. Crews have been hard at work constructing the pier caps that will hold the future Blair Station to 174 median rail bridge. From there, trains will travel east to the final stop at Trim Road where the Stage 2 team has been renovating the existing OC Transpo Park and Ride facility and building a future Highway 174 eastbound, north and south ramp required to make space for the realignment of Trim Road and the construction of the future Trim Station.

Over the course of the year, eastbound 174 lanes had to be shifted south and two new bridges had to be built at the Highway 174 Montreal Road interchange to create enough space to allow work on the guideway and station construction to begin. In November, crews worked over five weeks and weekends to detour traffic from the existing highway bridges to the two new bridges with minimum closure time and impact to the travelling public. This work was critical to enable the demolition of the existing bridges over the course of the first weekend in December and the start of the deep foundation for Montreal Station in 2021.
 Pictured above: New eastbound and westbound lanes on OR 174 at Montreal Road, November 2020.

Highway 174 Montreal Road Bridges Demolition

A tremendous amount of meticulous planning ensured that the demolition of the Montreal Road Bridges was a success. This was a significant project milestone for the Stage 2 team.

For 57 hours, beginning Friday night at 8 p.m., Montreal Road was completely closed beneath Highway 174 to vehicles, including OC Transpo buses, pedestrians, and cyclists. Crews, operating various pieces of large construction equipment fitted with hydraulic hammers, buckets, forks and shears worked around the clock to demolish 1,456 cubic metres of concrete and 160 metric tonnes of steel.

Every detail was considered including the provision of a shuttle service to ensure that pedestrians and cyclists could get to the other side of the bridges along Montreal Road, safely. As planned, Montreal Road was re-opened for traffic and pedestrians by 5 a.m. Monday morning. And, for some time after, concrete and steel debris resulting from the demolition was safely hauled away.
 Pictured above: Montreal Road Bridges Demolition December 2020.

O-Train West Extension

Throughout 2020 nearby residents, pedestrians, cyclists, motorists and transit users have witnessed a great deal of construction activity in Ottawa’s west-end. Much of this work is related to the O-Train West extension project from Tunney’s Pasture Station to Baseline Road and Moodie Drive. The west extension will add 15 km of rail and 11 new or converted rapid transit stations to the City’s LRT network.

Tunnel Construction

The west extension includes two cut and cover tunnels that will be constructed from the top down: the 3-kilometre Parkway tunnel will travel between Dominion Station and Lincoln Fields Station travelling underneath the Sir John A. Macdonald Parkway and Byron Linear Park, and the 270-metre Connaught tunnel that will link Lincoln Fields Station with Queensview Station by travelling underneath Connaught Avenue.

Pictured above: Locations of the future Stage 2 West Extension tunnels.
Before cut and cover tunnel construction can begin traffic needs to be shifted, and underground utilities must be relocated. Of critical importance in 2020, work was completed to shift the Sir John A. Macdonald Parkway north between Dominion Avenue and Cleary Avenue to allow for construction to safely occur on the south side.

At Rochester Field, work is underway to install temporary equipment that will produce concrete used to stabilize the excavation and form the tunnel walls. In the fall, an onsite facility was built that will process and dry the excavated material from the tunnel in slurry pits. This dry material can then be hauled away.
Pictured above: Slurry Pits in Rochester Field.

Excavation of the Parkway tunnel is well underway: approximately 30,000 cubic metres or 10% of the total quantity has been excavated, 60% of the pile drilling has been completed and 15,000 metres of piles have been drilled along Byron Avenue.
Pictured above: Support of Excavation work in Byron Linear Park.

At Connaught, Queensview and Pinecrest important utility work has been ongoing and nearing completion in preparation of Support of Excavation work, which will begin this winter.

Lincoln Fields Flyover Bridge

One of the most interesting and unique structures in Connaught Park, and indeed across the entire west extension, is the Lincoln Fields Flyover Bridge. This bridge carries the eastbound and westbound track alignment from Lincoln Fields Station to the Connaught Tunnel. It crosses over the southbound alignment to Baseline Station, the existing transitway, Pinecrest Creek, and a multi use pathway (MUP).

The Lincoln Fields Flyover Bridge is a raised structure, at an approximate height of 8 metres, and a clearance underneath of 5 metres. It is comprised of spans carrying two directions of track with a width of approximately 8.2 metres. This year a total of 5 spans were installed, including 13 girders, 50 tons in total, each 38 metres long.
Pictured above: Lincoln Fields Flyover Bridge August 2020.

Pictured above: Lincoln Fields Flyover Bridge December 2020.

Other notable works completed in the west include: a critical road detour opened to the public at Iris Station that permits multiple phasing of additional activities including the realignment of a culvert under Iris Street to accommodate future construction of the station and LRT guideway; opening of a new bus loop at Baseline Station; and, building a temporary bus station at Lincoln Fields Station.
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Traffic disruptions begin Thursday from LRT-related projects

Joanne Laucius, Ottawa Sun
Jan 15, 2021

A number of LRT-related projects will disrupt traffic starting on Thursday, says the city of Ottawa.

In the east end, the disruptions will include closing the eastbound off-ramp from Highway 174, starting Thursday at 10 p.m. and ending Friday at 5 a.m.

The eastbound on-ramp from southbound Montreal Road to Highway 174 will also close from Thursday at 10 p.m. until Friday at 5 a.m.

In the west end, the westbound on-ramp to Highway 417 from northbound Pinecrest Road will close daily between 10 a.m. and 10:30 a.m. starting Monday. The closure depends on the weather and is expected to be over on the morning of Jan. 22.

Meanwhile, sections of Byron Avenue between Sherbourne Road and Redwood Avenue, and between New Orchard Avenue and Ancaster Avenue will remain closed until the end of March for Stage 2 LRT work.

For construction updates across Ottawa, or for information about traffic and travel planning, visit Ottawa’s traffic map.



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Regular construction updates on the BayWard Bulletin. Already three in February: 


Does the City have a central location where they save the detour announcements we receive by email? Any other Councillor that keeps track on their website?  



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O-Train – Ward 7

  • Moodie Station Area and Light Maintenance and Storage Facility (LMSF):
    • LMSF retaining wall and block wall construction is underway.
    • LMSF sanitary and watermain work is underway.
    • Moodie Drive drilled shafts and soldier pile work is underway with abutments to follow.
    • NW temporary ramp construction at Moodie Drive is ongoing.
  • Holly Acres and Highway 417 Interchange
    • Electrical duct bank work is underway.
    • Abutment construction is ongoing.
    • Pier cap installation is ongoing.
  • Pinecrest Station Area
    • Northwest quadrant support of excavation is in progress.
    • Retaining wall construction for new NW ramp is underway.
    • Bridge formwork and abutments are ongoing.
    • Excavation of NE section has started.
  • Lincoln Fields Flyover Rail Bridge (south of Lincoln Fields)
    • Supporting structures construction work is underway.
    • Retaining wall construction is ongoing.
    • Backfilling is ongoing.
  • Connaught Cut and Cover Tunnel
    • Watermain relocation is underway on Connaught Avenue.
    • Queensview Station area preparation underway for utilities relocation and excavation.
  • Lincoln Fields Station Area
    • Carling Avenue watermain relocation is ongoing.
    • Station excavation is underway.
    • Rock breaking is ongoing for utilities work.
    • Temporary traffic realignments are in place on Carling Avenue as work progresses.
    • Utility work is ongoing on the north side of Lincoln Fields Station.
    • Pathway detour is in place.
    • Stormwater relocation has begun near Lawn Ave Parkette and Lincoln Fields.
  • Byron and Richmond Corridor (Byron Linear Park)
    • Underground utility relocation is ongoing on Byron Avenue.
    • Utilities relocation work on Richmond Road and McEwen Avenue is ongoing.
    • Cylinder piles are being drilled to support cut and cover excavation.
    • Road closures and lane reductions are ongoing for utilities work.

Stay informed of progress by subscribing to Stage 2 LRT project newsletter


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