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 11 – Sunday work, temporary change in hours. What we are doing: We continue to clean out the interlocking pipe-piles and fill them with concrete and sealing materials to finish the water-tight wall of the lowered corridor. Much of this work is being done during the week; however, some of it must be done over the weekends when fewer trains are operating. We do not expect an increase in noise or vibration; the standard augering equipment we use during the week will be used on Sundays. Sunday work hours are 7:30 a.m. – 5:00p.m. until early June
April 30 – We continue to make progress installing rebar and pouring concrete in over 2,000 piles in preparation for the final pouring of a permanent concrete cap. This work will continue into the summer as we prepare to start excavating the rail corridor to lower it between Dupont Street and St. Clair Avenue West. We will excavate the lowered corridor in stages so there are no disruptions to freight or commuter rail service in the corridor. The Junction Road/Old Weston Road rail crossing remains closed and will be reopened as soon as possible.

Project Schedule

Grade Separation Contract: mobilization in progress
Pipe Pile Validation Contract: in progress until early 2012
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.

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

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 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.

How are we doing?

Tell us what you think of our communications, our public meetings and the information we provide.
Learn more...

Stay in the Know!

Follow @GTS_Project

Event Calendar

Check out our Event Calendar to view information about upcoming events.
Find out more...

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
1631 Weston Road
Toronto, ON M9N 1T8
416-241-2300

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