Powering up the Hurontario LRT – how the overhead catenary system is coming along

On the border of Brampton and Mississauga lies the nerve centre of the Hurontario light rail transit (LRT) project: the Operations Maintenance Storage Facility (OMSF). A lot of progress has been made on the building itself, now work is underway on one of the key systems that will make the trains run.

There’s powerful work happening at the Hurontario light rail transit (LRT) maintenance facility.

Right now, crews are installing the supports for the system that will power the light rail vehicles (LRVs).

This involves drilling into the ground and installing the supports, known as caissons, deep in the ground.

Fun fact: The caissons are either seven metres or 14 metres deep depending on location and soil conditions.

large crane pouring concrete
The overhead catenary system (OCS) is the series of electrified wires that power the trains. (Metrolinx image)

They are the foundation of the overhead catenary system (OCS) poles that will support the catenary system. For those unfamiliar, the OCS is the series of electrified wires that will power the light rail vehicles.

Here’s some info on the progress at the OMSF:

  • Structural steel, masonry and building envelope is near 100% completion
  • Topsoil stripping and excavation has started for track work between the OMSF to Hurontario Street
  • OMSF Yard: 285,000 tonnes of soil backfilling completed
    • Site wet utilities, like watermains, and sewers are done
    • Etobicoke Creek structure is completed
    • Stormwater pond is near completion
bulldozer on pile of dirt
Heavy machinery is transforming the maintenance yard for the Hurontario LRT. (Metrolinx image)

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Story by Scott Money, Metrolinx editorial content manager, with files from Erika D’Urbano, Metrolinx communications senior advisor