Mandurah Estuary Bridge

Overview

Road
Project type
$136 million
Total budget
Under Construction
Project phase
Main Roads WA
Lead agency
500
Jobs supported
Early 2024
Start date

Late 2025
End date

Construction continues on a second, two-lane bridge on the south side of the existing Mandurah Estuary Bridge.

With more than 33,000 vehicles use the existing bridge per day, the bridge upgrade will increase vehicle capacity, easing the congestion currently experienced. Provision for a third lane in each direction has been included in the project design, helping to meet demand created by population growth across Perth, Mandurah, Peel and the South West.

In October-2024, the first bridge segment will be incrementally launched across the waterway from the south-east side. This method reduces impact to the estuary.

A four-metre-wide shared path will be constructed under the bridge, better connecting those walking, riding or wheeling.

Construction commenced in January 2024, and preliminary earthworks and drainage are now complete. The bridge is expected to be open by late-2025, with finishing works continuing into early-2026.

Find more information on the Main Roads WA project here.

Benefits

Provision of additional traffic lanes
Improved road safety and traffic flow
Reduced traffic congestion
Better connected path access

Gallery

Project map

This map shows an aerial view of the project location.

Show disruptions

Active travel options

Waterside Drive to Mandurah Road Cycle Path Closure - Until Late-2025
Cycle path closure required between Westside Driver and Mandurah Road for temporary barrier installation and construction of retaining limestone walls to support future noise walls. The cycle access path will be reinstated aligning with new median and access path to Waterlily Drive at the end of the project. Detour in place as per map below. See Main Roads WA Travel Map for the most up-to-date information.

Starts: 7 Jun 2024 --- Ends: 31 Dec 2025
- Waterside Drive to Mandurah Road Detour Map
- Main Roads WA Travel Map