Project Overview

The project includes detail design for the replacement of bridges on Highway 400 at Innisfil Beach Road & Barrie-Collingwood Railway, reconstruction of Innisfil Beach Road interchange, reconstruction of the existing 6-lane Highway 400 mainline to match the reconstructed interchange, drainage improvements, full illumination, relocation of traffic signals to the new ramp terminals, and improvements to roadside safety. Three lanes of Highway 400 will be maintained in each direction during all constructions stages.

The bridges along this portion of Highway 400 have experienced deterioration. Current traffic projections indicate that the Highway 400 corridor needs to be widened to 10 lanes (five (5) lanes in each direction by 2031. The addition of lanes to the Highway 400 corridor will require the widening and replacement of the structures that cross Highway 400. The preliminary design of the bridge replacement options were previously completed as part of a 2017 Environmental Assessment (Highway 400 Improvements from 1 km South of Highway 89 to the Junction of Highway 11) . These options are outlined below and will be reviewed by the detail design project team.

Highway 400 / Innisfil Beach Road Overpass (Site 30-210):
The recommended structure as per the 2017 Class Environmental Assessment and Preliminary Design Study Update, as required for a new interchange at Highway 400 / Innisfil Beach Road Overpass is a 34.0 m single span bridge. The new bridge will accommodate the future 4-lane cross-section for Innisfil Beach Road.

Barrie/Collingwood Railway Overhead (Site 30-209):
The recommended structure type per the 2005 Planning and Preliminary Design Study, as required to accommodate clearance requirements of the Barrie/Collingwood Railway Overhead, is 13.5m single span bridge.

The purpose of this website is to provide interested parties with access to study information and access to the project team that is carrying out this study.