Donlands Station - Second Exit Entrance and Easier Access project update


Construction updates
Effective 2021 until 2/1/2023 12:00:00 AM
For background information, please visit the project page. If you would like to be added to the project e-mail list in order to receive future updates about this project, kindly contact christina.joseph@ttc.ca.  

As part of the TTC’s commitment to safety and modernization, Donlands Station (Line 2) will be getting new elevators to provide accessibility, and a new Secondary Exit/Entrance to improve customer safety and convenience. To minimize the duration of overall construction, the TTC will build the Donlands Station Easier Access project at the same time as the second exit/entrance project:

 

  • The TTC Board unanimously approved the Local Working Group’s recommended Second Exit/Entrance location at 17/19 Dewhurst Boulevard.
  • New elevators will serve the existing station entrance at Strathmore Boulevard and Donlands Avenue.


Overnight power generation on Strathmore And Dewhurst - January 14 to March 25, 2022

What we are doing and why?

As part of the Easier Access and Second Exit/Entrance Program, the TTC is constructing a second exit/entrance building at 17/19 Dewhurst Blvd for Donlands Station.

In order to carry out this work, overnight power generation is required on the construction site. This power keeps the grout from freezing in the colder winter months and is required 24-hours a day until temperatures rise.

A new electrical panel will be installed by Maystar to reduce the use of generators to power the de-icing equipment. The generators will still run during the day, but the new panel is planned to replace use of the generators as much as possible overnight to reduce noise for our neighbours.

For further information, please contact:
Christina Joseph, Senior Community Liaison,
416-994-0923, christina.joseph@ttc.ca

Alexa Aiken, Community Liaison,
437-488-5084, alexa.aiken@ttc.ca


Jet grouting work at Strathmore Boulevard and Dewhurst Boulevard begins December 20, 2021

Construction crews will begin jet grouting work for the future second exit/entrance location for Donlands Station. Pending weather, the work will be completed at the end of March 2022. Caisson activity wrapped up at this location in November. The work area is in the construction site along 1 – 12 Strathmore Boulevard and along Dewhurst Blvd.

 

Jet Grouting

The jet grouting process adds grout to the soil to stabilize the earth during the excavation stage. Jet grouting is used to control groundwater and provide additional support to neighbouring structures. A rotating drill head with a nozzel bores vertically into the ground. On site, you will see a mix plant producing the grout. The grout is pumped through the drill head and sprayed into the earth slowly building columns of grouted earth adding additional support. This photo shows the drill rig and mix plant currently on site.

 

What to Expect

- A drill rig and mixing plant will be on site for the jet grouting work. Jet grouting stabilizes the soil, creates a safe work zone, and is typical on construction sites where dewatering and excavation will be done. Dewatering and sediment tanks will be parked on the south side of Strathmore Blvd in front of 15 – 27 Strathmore Blvd. 

- Noise and vibration should be expected with this work from the drill rig, however, it is less disruptive than caisson work. The contractor is monitoring vibration and noise and complying with City of Toronto Noise and Construction Vibration By-Laws.

- Some on-street parking will be required for the dewatering equipment, sediment tank and construction trucks for deliveries to the site.

- Construction trucks, equipment and site staff will be present in the general area.

- A sweeper truck is scheduled to clean Strathmore Blvd from the construction site to Donlands Avenue each week. The water truck will be paused during the colder winter months.

 

Timing

- Jet grouting testing will begin the week of December 13. Jet grouting work is expected to start the week of December 20 and continue until March 2022. along 1 – 12 Strathmore Boulevard and a portion of Dewhurst Blvd. Some work may be rescheduled due to weather conditions or unforeseen circumstances.

- Work is typically scheduled to take place between 7 a.m. to 5 p.m., Monday to Friday. Weekend work will be scheduled if required.

- Construction crews arrive on site at 6:30 a.m. but will not begin to work until 7 a.m.

 

Traffic, pedestrian, parking and transit restrictions

- Pedestrian walkways will remain open.

- Parking is now restricted on Strathmore Blvd with the opening of the Green P Langford parking lot for permit holders between 1 – 47 Strathmore Blvd. Exceptions for parking on Strathmore include construction equipment, vehicles and three accessible permit parking spots.


Construction begins at Strathmore Boulevard and Dewhurst Boulevard with Caisson installation - starting March 9

Beginning on March 9, 2021, crews will begin installing caissons at the future second exit/entrance location for Donlands Station. The work area is in construction site at 17/19 Dewhurst Avenue.

Caisson Installation

A drill rig will work to install a series of vertical caissons for the permanent second exit/entrance walls. Caissons are formed by drilling and placing a hollow tube into the ground, placing a large steel beam with a crane into the tube, and filling it with concrete. These “piles” of concrete will form the foundation of the future entrance/exit building. However, unlike a foundation for a house – where a hole is dug and then the foundation walls are built –crews drill overlapping caissons to form the foundation wall, then dig the hole. The caisson wall supports the future second exit/entrance building and the neighbouring buildings. Similar work was done successfully for the second exit/entrance buildings and elevators for Chester, Coxwell and Woodbine stations adjacent to neighbouring homes. The photo shows the vertical caisson wall for the Chester Station second exit/entrance building beside a home.

What to Expect

A drill rig, vacuum truck and crane will be on site for the caisson installation. Caisson installation stabilizes the soil, creates a safe work zone, and is typical on construction sites where dewatering will be done. This photo shows caisson installation next to a neighbouring house at Coxwell Station. Crews will be drilling around the perimeter of the second exit/entrance site and there will be noise and vibration with this work from the drill rig and vacuum truck.

  • Noise and vibration should be expected with this work from the drill rig and vacuum truck. The contractor is monitoring vibration and noise and complying with City of Toronto Noise and Construction Vibration By-Laws
  • New dust mitigation fencing in addition to the existing dust mitigation fencing and filters on neighbouring fences will be placed prior to the work.
  • Some on-street parking will be required for the construction trucks for deliveries to the site
  • Construction trucks, equipment and site staff will be present in the general area

Timing

  • Caisson installation work is scheduled to begin on March 9, 2021, at the former site of 17/19 Dewhurst Boulevard and is expected to continue for approximately eight weeks.
  • Some work may be rescheduled due to weather conditions or unforeseen circumstances.
  • Work is scheduled to take place between 7 a.m. to 7 p.m., Monday to Friday.

Traffic, pedestrian and transit restrictions

Pedestrian walkways will remain open.

For further information:

Chris Joseph, Senior Community Liaison, Christina.Joseph@ttc.ca.

Alexa Aiken, Community Liaison, alexa.aiken@ttc.ca 

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