Try the new

Tremaine Road Improvements (Steeles Avenue to Campbellville Road/5 Side Road)


Town of Milton

Project Type:



To help keep traffic moving, Halton Region is realigning Tremaine Road (from Steeles Avenue to Campbellville Road/5 Side Road) to four lanes. The improvements include the following features:

  • Grade separation under the Canadian Pacific Railway tracks
  • Bridge over 16 Mile Creek
  • On-road cycling lanes for both directions
  • Multi-use paths on both sides of the road
  • New interchange at Highway 401
  • Installation of a 600 mm watermain

This work will happen in three separate construction phases, as described below:

  • Phase I: Steeles Avenue to 3 Side Road – March 2018 to Summer 2020
  • Phase II: Advanced Creek Relocation – Spring 2019 to Fall 2020
  • Phase III: Hwy 401 Interchange – Spring 2021 to Fall 2022

There may be minimal road closures and traffic delays throughout construction. We will make every effort to minimize any potential disruptions.

View construction project (external link) in a larger map
  • Blue lineWork area
  • Red lineNew Interchange
Project Status:


Start Date:

March 2018

End Date:

Fall 2022

Project #:



For more information, call 311 or email

Project Documents: