Construction Begins for the Traction Power Substation (TPSS)

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avril 29, 2019


What Work is Taking Place?

As part of continued support of the future surface alignment for the Eglinton Crosstown LRT, crews will conducting duct bank installation in preparation for the construction of the Traction Power Substation (TPSS) 9 that will power the Eglinton Crosstown Light Rail Transit (ECLRT). The work will take place in the existing work zone on the south side of Eglinton Avenue East between the East Don River Bridge and Credit Union Drive.


Crews will be excavating, saw cutting, pouring concrete and installing duct banks for a period of two weeks.


What is a traction power substation?

  • A TPSS is a steel building similar in size to a shipping container.
  • It provides electrical power to the LRT via the overheard catenary system used to power the trains. A TPSS converts electricity from the local power source to the levels needed by the vehicles.
  •  A TPSS is a safe structure that will not introduce any new risk to the community in which it is constructed.
  • All TPSS structures are air-conditioned and therefore emit a low humming noise, similar to a residential air conditioner.

Hours of Work

  • Work is expected to begin as early as Monday, April 29, and continue for two (2) weeks.
  • Work will be performed between the hours of 7 a.m. and 11 p.m., seven (7) days a week.
  • Note: Unexpected circumstances (weather, equipment failure, etc.) may also change the above interruption plans or prolong the interruption. If this occurs, we will endeavor to provide reasonable notice.

What to Expect

  • Duct bank installation for TPSS 9 on the south side of Eglinton Avenue East between the East Don River Bridge and Credit Union Drive.
  • Construction activities include: excavating, saw cutting, pouring concrete and installation of duct banks.
  • Current lane reductions in place for road widening and reconstruction will be maintained. Construction activities will take place within the existing work zone.

Pedestrian Impacts

  • The sidewalk on the south side of Eglinton Avenue East will remain closed.
  • Pedestrians will be directed to the available sidewalk on the north side of Eglinton Avenue.