Skip to main content
  • Midland and Airport Lines shutdown for essential works 24 March - 7 April 2024. Find out more.

  • The Armadale Line Transformation is underway. Find out more.


Mandurah Estuary Bridge Duplication



  • 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 is underway on a second traffic bridge alongside the current Mandurah Estuary Bridge. Filling and earthworks are due to begin in February.

With population growth in Perth, Mandurah, Peel and the wider South West regions, the new bridge will improve traffic flow and road safety with a two-lane bridge constructed on the south side of the current bridge.

A four-metre-wide path will be constructed under the bridge, connecting those walking or riding to the southern area of Mandurah.

Built in the 1980s, the original bridge was designed to be duplicated when required to meet increased demand from traffic.


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

Project map

This map shows an aerial view of the project location.

Plan your journey

Avoid disruptions to your journey and plan your trip