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Great Eastern Highway and Seaborne Street Intersection Project


 

Our Vision

The Great Eastern Highway and Seaborne Street intersection upgrade will create a safer, more efficient junction for the Parkerville community.

The project will improve traffic flow, enhance safety for all road users, and support the growing needs of the area while balancing infrastructure improvements with environmental care.

For more details visit the Project Page.

 

Why This Project Matters

The upgrade of the Great Eastern Highway and Seaborne Street intersection is a key infrastructure project for the Parkerville area. This busy junction serves local residents, commuters, and emergency services travelling along Great Eastern Highway.

  • Improving this intersection will:
  • Enhance safety for vehicles, pedestrians, and cyclists
  • Improve traffic flow and reduce congestion
  • Support the growing Parkerville and Mundaring community
  • Provide safer access for emergency services

 

What’s Planned

The project includes several key infrastructure improvements:

  • Intersection upgrade works at Great Eastern Highway and Seaborne Street
  • Land acquisition of a small portion of land in Parkerville
  • Service relocations to accommodate the new intersection design
  • Some tree clearing on the western side of Seaborne Street
  • Revised drainage design to minimise vegetation clearing impact

Main Roads Western Australia has revised the drainage design specifically to reduce the amount of tree clearing required. Environmental assessments are being conducted, and a Clearing Assessment Report will be published for public comment.

 

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Contact Details

Name: Sam Cranswick

Job Title: Customer & Stakeholder Engagement Specialist

Phone: (08) 9290 6828

Email: samcranswick@mundaring.wa.gov.au

Project Timeline
  • Current Phase

    Main Roads WA finalising land acquisition at 50 Seaborne Street, Parkerville
  • Late 2026/Early 2027

    - Community engagement commencement - Clearing Assessment Report published for public comment - Service relocations arranged
  • 2027/2028 Financial Year

    Construction expected to commence