The Ontario Ministry of Transportation (MTO) is improving the Highway 400 and Innisfil Beach Road interchange in the Town of Innisfil.

Construction status 

MTO began construction on April 20, 2022. Construction is expected to continue until 2025. During this construction phase, motorists may experience temporary disruptions including: 

  • Construction traffic
  • Temporary traffic diversions
  • Noise
  • Dust

Access will be maintained for residents and emergency services, and three lanes of Highway 400 will remain open in each direction during construction. We do not expect any disruption to services such as water, gas and electric. 

Future closures

In 2023, MTO will require full road closures with detours for up to 6 weeks to complete this project. We will update the community closer to that time.  

Project overview

The project includes:

  • Replacement of the bridges on Highway 400 at Innisfil Beach Road and the Barrie-Collingwood Railway
  • Reconstruction of Innisfil Beach Road interchange
  • Reconstruction of the existing six-lane Highway 400 mainline to match the reconstructed interchange
  • Drainage improvements
  • Full illumination
  • Relocation of traffic signals to the new ramp terminals
  • Improvements to roadside safety