News ReleaseMinistry of TransportationPublished: July 28, 2026

Work begins to twin Highway 3 in St. Thomas to link to EV battery plant

Construction and enabling works have started on nearly 7 km of Highway 3 to improve safety and create a direct route to the PowerCo EV battery plant; full twinning begins in 2027.

Published
July 28, 2026
Ministry
Ministry of Transportation
Release type
News Release
External ID
1007808

Summary

What is happening#

  • Construction and enabling works (utility relocations and grading) have started to twin nearly 7 km of Highway 3 in St. Thomas, from Centennial Avenue to Ron McNeil Line.
  • Full twinning construction is scheduled to begin in 2027.

Where and who it affects#

  • Location: St. Thomas and Elgin County, connecting to the Talbotville Bypass and Highway 401.
  • Affects: local drivers, commuters, workers headed to the St. Thomas Industrial Park and the nearby PowerCo EV battery plant (Volkswagen investment).

By the numbers (stated in the release)#

  • Project segment: almost 7 kilometres (Centennial Ave → Ron McNeil Line).
  • Volkswagen announced a $7‑billion investment for the EV battery facility in April 2023.
  • Provincewide highway investment cited: approximately $31 billion over 10 years.

Why it matters#

  • Improves safety and travel times on a key route.
  • Creates a direct connection for workers and freight to the new EV battery plant and Highway 401, supporting regional economic and housing growth.

Other details from the release#

  • Enabling works underway now; full twinning construction begins in 2027.
  • Dufferin Construction was named for the utilities contract in project announcements.
  • Multiple regional business and construction groups and municipal leaders welcomed the progress.

Related links

Source: Ontario Newsroom

Official release