Mandurah Estuary Bridge | Building for Tomorrow

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Fremantle Traffic Bridge closure from 1 February 2026 to enable major works.
Midland Line shutdown between Bassendean and Midland stations from 22 Jan to 22 Feb 2026. Find out more.

Overview

Road
Project type
$148.8 million
Total budget
Under Construction
Project phase
Main Roads WA
Lead agency
500
Jobs supported
Early 2024
Start date

Early 2026
End date

Construction is nearing completion on the Mandurah Estuary Bridge duplication.

More than 33,000 vehicles use the existing bridge daily. The bridge duplication will ease congestion, enhance safety and improve connectivity across Mandurah and the Peel region.

The project will deliver a suite of community upgrades, including a revitalised children’s playground on the eastern foreshore, improved accessible shared paths, new public art installations and more than three kilometres of amenity walls on both sides of the bridges.

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

Provision for additional traffic lanes.
Improved road safety and traffic flow.
Reduced traffic congestion.
Better connected shared path access.

Gallery

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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