GO train

Lakeshore East Line GO Expansion

Bowmanville Extension

Metrolinx is extending the Lakeshore East line to Bowmanville

The Bowmanville Extension will extend the Lakeshore East Line nearly 20 kilometres to Bowmanville, connecting more of Durham Region to fast, reliable two-way, all-day rail service.

The Bowmanville Extension, is expected to serve approximately 17,000 daily riders by 2041, will reduce in-vehicle travel time from Bowmanville to Union Station by 15 minutes compared to travelling by GO bus and transferring to rail at Oshawa.

Once complete, customers will enjoy half hourly peak direction and hourly off-peak service to/from Bowmanville..

The Bowmanville Extension is currently in construction For more information on project phases, please check out our project lifecycle page.

Interactive Map

Zoom in to see details, and click on construction notices, stations, lines and community offices for information, images and videos. Click "Enlarge" below the map to show it full-screen.

Project overview

  • 18.7 km of new track
  • New bridges, including a rail bridge over Highway 401
  • Modifications to Durham College Oshawa GO and VIA building, including the reconstruction of the pedestrian bridge
  • New signal infrastructure
  • Utility relocations
  • At-grade crossing upgrades

Photos and renderings

Project progress

  • Bowmanville Extension Project advanced through the Preliminary Design Business Case

    Early 2022

  • Construction contract award to Bowmanville Construction Partners

    May 2023

  • Transit Project Assessment Process finalized

    December 2023

  • Early works start

    March 2025

  • Major construction contract award

    January 2026

  • Start of the Simcoe St. bridge replacement

    January 2026

  • Start of the Farewell St. bridge replacement

    March 2026

Coming up on site

Relocating 1200mm feeder main to accommodate new GO tracks
Start of construction of the new Green Rd. Bridge
Start of construction of the new Wilson Rd. Bridge
Start of construction of the new Farewell Creek Bridge

Future project milestones

Start of construction of the new Courtice Rd. Bridge
Start of construction of the new Harmony Creek bridge
Modification of VIA Pedestrian Bridge at Oshawa GO Station
New tracks built and in service
Completion of the Bowmanville Extension testing and commissioning

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