Mandurah Estuary Bridge | Building for Tomorrow

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Path access through the Perth Park site is closed during construction. Find out more.
Fremantle Traffic Bridge is currently closed to enable major works.
The New Midland Station is now open. Learn more.

Overview

Road
Project type
$148.8 million
Total budget
Complete
Project phase
Main Roads WA
Lead agency
500
Jobs supported

The Mandurah Estuary Bridge Duplication project is complete, providing a safer and more efficient journey for residents and visitors to the Peel region.

The project has delivered a new two-lane bridge on the south side of the existing Mandurah Estuary Bridge, which opened to westbound traffic in early 2026.

With traffic now flowing freely across both bridges, travel is smoother and less congested for the 33,000 vehicles that cross the estuary every day.

A suite of community upgrades have also been delivered, including new programmable lighting, upgrades to the existing shared path and a new fishing platform under the new bridge.

For more project information, visit Main Roads WA.

News and project updates

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Related projects

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Mandurah Station

Multi-storey car park

Mandurah

Complete

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Benefits

Improved road safety for residents and visitors.
Reduced traffic congestion and more efficient journeys.
Better connected shared path access.
Recreational and community assets.

Gallery

The completed Mandurah Estuary Bridge is now open to traffic.

The completed Mandurah Estuary Bridge is now open to traffic.
The new fishing platform delivered as part of the project.

The new fishing platform delivered as part of the project.
Video: Reshaping WA Report (Feb 2026). The duplicated Mandurah Estuary Bridge is now open to westbound traffic.

Video: Reshaping WA Report (Feb 2026). The duplicated Mandurah Estuary Bridge is now open to westbound traffic.
The new bridge is now at its final height, sitting around 700mm higher than the original bridge.

The new bridge is now at its final height, sitting around 700mm higher than the original bridge.
Video: Reshaping WA Report. The Mandurah Estuary Bridge duplication project is on track to open early 2026.

Video: Reshaping WA Report. The Mandurah Estuary Bridge duplication project is on track to open early 2026.
Bridge approaches the western foreshore.

Bridge approaches the western foreshore.
Video: Reshaping WA Report - Construction continues on duplication of the Mandurah Estuary Bridge.

Video: Reshaping WA Report - Construction continues on duplication of the Mandurah Estuary Bridge.
The second two-lane crossing now has eight ‘segment launches’ completed.

The second two-lane crossing now has eight ‘segment launches’ completed.
First bridge segment has been launched on the Mandurah Estuary Bridge.

First bridge segment has been launched on the Mandurah Estuary Bridge.
The bridge segment launch has commenced from the casting bed area adjacent to Waterlily Drive.

The bridge segment launch has commenced from the casting bed area adjacent to Waterlily Drive.
Aerial view of the bridge launching process.

Aerial view of the bridge launching process.
Navigational markers are being used in the estuary to outline the construction area and to guide vessels safely through the navigational channel.

Navigational markers are being used in the estuary to outline the construction area and to guide vessels safely through the navigational channel.
Piling works continue during October on land and in the estuary.

Piling works continue during October on land and in the estuary.
The new Mandurah Estuary Bridge will be constructed with capacity for three lanes.

The new Mandurah Estuary Bridge will be constructed with capacity for three lanes.
Main Roads WA have partnered with Estuary Guardians Mandurah to ensure protection of the environment and marine life in the estuary during construction.

Main Roads WA have partnered with Estuary Guardians Mandurah to ensure protection of the environment and marine life in the estuary during construction.
The new southern bridge will have a four-metre-wide shared path underneath.

The new southern bridge will have a four-metre-wide shared path underneath.
The project design includes provision for a third lane in each direction.

The project design includes provision for a third lane in each direction.
This project is delivering a second, two-lane bridge on the south side of the existing structure to provide additional traffic lanes.

This project is delivering a second, two-lane bridge on the south side of the existing structure to provide additional traffic lanes.
Piling works for the new eastern foreshore fishing platform underway (August 2024).

Piling works for the new eastern foreshore fishing platform underway (August 2024).
Works on the limestone retaining walls next to Seahawk Drive and Waterside Drive.

Works on the limestone retaining walls next to Seahawk Drive and Waterside Drive.

Project map

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Contact and further information