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West Toronto Diamond Grade Separation

The West Toronto Diamond (WTD) is rail-to-rail and rail-to-road grade separation in the Georgetown South Corridor. When it is complete, the GO commuter line will run underneath the CP freight line and provide safer, more efficient scheduling for all current and future GO service in the corridor.

Updates

  • May 28 – The corridor between Dupont Street and St. Clair Avenue West has been completely transformed by the work that has progressed in just the last few months. This summer, we will see two major milestones with the installation of a bridge at Junction/Old Weston Road and another bridge installation at the CP North Toronto Sub tracks. The work leading up to the bridge slides includes finishing the walls and the new track beds. By the end of the project, we’ll have poured over 50,000 cubic metres of concrete to form the new corridor! Reminder, work hours are: Monday to Friday 7:00 a.m. to 7:00 p.m., Saturday 9:00 a.m. to 7:00 p.m., and occasional Sunday work 9:00 a.m. to 5:00 p.m.
West Toronto Diamond Staging Current West Toronto Diamond Staging Complete

 

Project Schedule

  • Grade Separation Contract: in progress
  • Project complete: 2014

What we are doing

Grascan Construction Ltd. was awarded the Grade Separation Contract, which is the last phase of construction, and began mobilizing onsite in mid-October. This last phase will be complete in 2014 and includes:

  • Excavation of the corridor from Dupont Street to St. Clair Avenue
  • Building walls and the base of the lowered corridor
  • Installation of two slide-in bridges; one bridge to separate train and vehicle traffic at the Old Weston Road and Junction Road crossing and another bridge to separate GO Transit trains from freight trains at the CP track crossing
  • Track realignment and testing
  • Please note, the Pipe Pile Validation Contract will continue until early 2012 including pile replacement work and installation of shoring walls

How this will affect you

  • Nearby residents may continue to hear the crane mounted augers, which look and operate like very large drill bits, as they remove soil from within the pipe piles
  • Some noise and vibration can be expected when pipe piles are removed and when shoring walls are installed
  • Soil and dust control measures are in place to protect nearby properties and streets

We thank our neighbours for their continued patience as we complete this work as quickly and as safely as possible. Please review our presentation to learn about the benefits of these grade separations and the innovative slide-in bridge design.

Photos and Renderings

North Of Dupont Street

June 11, 2012 - Tunnel wall piles north of Dupont St. filled with concrete October 9, 2012 - Tunnel wall construction north of Dupont St. November 15, 2012 - Tunnel struts installation December 20, 2012 - Tunnel excavation north of Dupont St. begins January 10, 2013 - Tunnel excavation progress

West Toronto Diamond

November 20, 2012 - Excavating for work-tunnel at Diamond November 29, 2012 - Work-tunnel installation at Diamond December 4, 2012 - Diamond area concrete blocks installed December 4, 2012 - Concrete blocks for track protection during excavation January 10, 2013 - Tiebacks to stabilize north tracks during excavation

South of St. Clair Avenue

September 25, 2012 - Installing rebar in piles south of St. Clair Ave. November 6, 2012 - Building pile wall cap beams south of St. Clair Ave. November 9, 2012 - Reinforcing pile wall with concrete November 15, 2012 - Finished pile wall cap beams south of St. Clair Ave. January 7, 2013 - Pile wall cap beam progress south of St. Clair Ave.

 

Noise and Vibration

Noise and vibration monitors have been set up along the West Toronto Diamond project area to monitor any noise and vibration generated by the construction. This data will be posted on a weekly basis.

The following graph displays 1-hour averaged noise levels measured in decibels (dbA).

West Toronto Diamond Grade Separation Noise Monitoring Graph

For a map of the station locations, please click here.

Archived graphs

2011 | January 2-March 31 | April 2-7 | April 9-14 | April 16-21 | April 23-29 | April 30-May 5 | May 7-12 | May 14-19 | May 21-26 | May 28-June 2 | June 4-9 | June 11-16 | June 18-23 | June 25-30 | July 2-7 | July 9-14 | July 16-21 | July 23-28 | July 30-August 4 | August 6-11 | August 13-18 | August 20-25 | August 27-September 1 | September 3-8 | September 10-15 | September 17-22 | September 24-29 | October 1-6 | October 8-13 | October 15-20 | October 22-27 | October 29-November 3 | November 5-10 | November 12-17 | November 19-24 | November 26-December 1 | December 3-8 | December 10-15 | December 17-22 | December 24-29 | December 31, 2012-January 5, 2013 | January 7-12 | January 14-19 | January 21-26 | January 28-February 2 | February 4-9 | February 11-16 | February 18-23 | February 25-March 3| March 4-9 | March 11-16 | March 18-23 | March 25-30 | April 1-6 | April 8-13 | April 15-20 | April 22-27 | April 29-May 4 | May 6-11 | May 13-18 | May 20-25

Vibration

No elevated vibration levels were recorded during this construction period.

To learn more about how we're monitoring noise and vibration during construction, please see our Noise and Vibration page.

Tenders

Construction contractor: Grascan Construction Ltd. (Main Contract)
Construction contractor: Dufferin Construction Company (Pipe Pile Validation Contract)

Community Updates

For updates from 2010 or 2011, please see our Communication Materials page.

For information about the WTD project between 2009-2010, please see our Achive section.

For more information on the West Toronto Diamond Grade Separation, please contact the West Toronto Diamond Community Office at 416-604-9582.

Noise wall Committees GTS Toolkit

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Contact Us

Georgetown South Project
20 Bay Street, Suite 600
Toronto, ON M5J 2W3
416-406-0489
gts@gotransit.com

Strachan Community Office
901 King Street West, Suite 102
Toronto, ON M5V 3H5
416-581-1300

Weston Community Office
NEW 44 King Street
Toronto, ON M9N 1L1
416-241-2300

WTD Community Office
18 Hook Avenue, Suite 204
Toronto, ON M6P 1T4
416-604-9582
By appointment only