Headwall Construction near Yonge Street for Twin Tunnels Stage 2 – Construction Shift to North Side of Eglinton Avenue

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September 11, 2014

What we are building

What: Crews are building a headwall for the future extraction shaft of the Crosstown tunnelling machines. This is located east of Duplex Avenue on Eglinton Avenue. Headwalls are underground support walls located at the east and west ends of future stations and/or tunnel excavations. Following the site preparation, crews will be installing this one underground headwall in advance of the arrival of the tunnel boring machines. Construction of this headwall required a grout plant to be established nearby to pump a form of concrete, otherwise known as “grout”, to the headwall location. In order to minimize road occupancy on Eglinton Avenue West this grout plant is located within a section on Duplex Avenue, south of Eglinton.

Where: During this phase the construction zone will switch to the north side of Eglinton Avenue.  The north side work zone will extend from approximately east of Colin Avenue to just west of Yonge Street along Eglinton Avenue West. The work zone will be separated from the right-of-way with traffic cones and concrete barriers and/or fencing.  Various traffic control measures and construction zones will occupy the Eglinton Avenue and Duplex Avenue intersection and will change and shift over the coming months for the construction of one headwall.

When: Construction is expected to start as early as September 2014 and continue to late fall. Timelines may be rescheduled or adjusted due to weather conditions and unforeseen circumstances.

Map headwall construction switches to N side at Yonge

Traffic Details

  • During the first stage of construction, the jet grout plant was set up within the Metrolinx secured property at south east corner of Eglinton Avenue and Duplex Avenue.
  • Traffic lanes on Eglinton Avenue continue to be reduced to one lane in each direction starting from Colin Avenue to Yonge Street.
  • During the second stage of construction, work will be performed on the north lanes of Eglinton Avenue, east of Duplex Avenue while crews install the headwall.
  • Left turns from westbound Eglinton Avenue on to Duplex Avenue southbound will be prohibited (TTC buses excepted). 

Traffic delays are expected during construction.  Please take care when travelling near construction areas. Pedestrian walkways will remain open. Please watch for additional signs directing pedestrians. 

Transit Information 

For the safety of transit riders, both eastbound and westbound TTC bus stops in the affected area will be relocated. Watch for posted signs and future information indicating the new locations.  

Pedestrian Information

Pedestrian walkways will remain open; however detours may be in place. Pedestrians will be separated from construction with a chain link fence.

Work Hours

Most of the work will be carried out between 7 a.m. and 11 p.m., 7 days a week. In certain situations, some late night and/or early morning works may be required to complete the work and keep construction moving.  The contractor will not always work during the extended hours, but may do so at its discretion.

Noise and Vibration

Noise and vibration associated with construction can be expected with this work. 

Please Contact Us

If you would like more detail about this work or any other aspect of the Eglinton Crosstown project, please do not hesitate to contact us.  We thank you for your continued patience as we work to build rapid transit.

Transforming transit across the middle of Toronto will involve significant road works.  Construction will be visible along the corridor and on some side streets.  There will be short-term local street closures and turning restrictions to allow for the construction to take place.  Metrolinx, City of Toronto staff and your elected officials are working closely together to monitor and make adjustments to the local road configurations, work zones and other day to day items such as signage and temporary adjustments.

Please support your local businesses during construction.