Overview

The Ministry of Transportation (MTO) is carrying out improvements within the Highway 427 and Highway 409 corridor.

This construction project includes repairs to bridges, retaining walls, and culverts, bridge demolitions, roadway resurfacing, drainage upgrades, lighting improvements, and updates to traffic management systems. The work along Highway 409 extends approximately 5.5 km between Highway 401 and Highway 427, including nearby ramps and connecting roads.

Construction began in early summer 2026 with completion expected in Fall 2029.

These improvements are needed to repair aging infrastructure, improve roadway conditions, and enhance long term safety and traffic flow for all road users.