Swan River Crossings Project, Fremantle

Construction works are underway by Main Roads WA to replace the existing Fremantle Traffic Bridge. 

In May 2025, the State Government announced critical changes to the Fremantle road network in preparation for the closure of the Fremantle Traffic Bridge in early 2026.

While construction of the new bridge is making progress, and much of the new bridge can be constructed while the existing cross is open, it will be necessary to close the bridge to complete the project. 

This is because the new Fremantle Traffic Bridge is being constructed on the same alignment as the current bridge.

Based on the current timetable, closure of the bridge for up to 12 months is anticipated to begin in early 2026.

Traffic modelling shows that the closure of the bridge will have a severe impact on the road network with commuters likely to experience delays. As a result, some temporary network modifications are essential to keep traffic moving during the closure.

The proposed changes are explained in detail on the Main Roads Road Network Changes Fact Sheet and their interactive map.

Changes to the network will begin in late May and will continue through to the end of 2025 in readiness for bridge closure.

To stay up to date on traffic changes and for project updates visit the Main Roads website.