Massive precast concrete girders will be erected overnight on busy GO Line


Ontario Construction News staff writer

Construction crews will work overnight to erect massive concrete girders above the Dupont Street overpass between Lansdowne Avenue and Campbell Avenue in Toronto. The girders are made of large precast concrete and are essentially bridge segments that will support the track.

The upcoming construction is a part of the Davenport Diamond Guideway project that will help bring more GO train service to the Barrie line.

To put the girders in place, workers will set up a gantry system on the overpass to provide the extra muscle needed to lift the heavy concrete girders and will install them precisely where they belong, piece by piece.

Dupont Street, between Lansdowne Avenue and Campbell Avenue, will be fully closed intermittently between Monday, April 4 and 17.

General construction equipment such as trucks and a telehandler will be onsite during the activities, all equipped with “white noise” back-up alarms to reduce noise disruptions as much as possible.

The Davenport Diamond refers to the intersection where the Barrie GO corridor meets the CP rail tracks. It’s one of the busiest train intersections in North America.

renderingGraham Commuter Rail Solutions (GCRS) was selected to build an elevated Guideway above the CP rail tracks.

The plan also includes new greenspace under the guideway, including:

  • Fully accessible multi-use paths for pedestrians and cyclists
  • A sustainable approach to landscape and plantings
  • Beautiful pollinating gardens
  • Gathering spaces for the community

go line


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