Drone photo courtesy of Georgiou.
During the tender design, WSP worked closely with the contractor, Georgiou, and structural engineer, BG&E, to optimise the ground improvement and pile concept design for the new bridge, achieving a more cost-effective solution.
The new traffic bridge will be constructed south of the existing bridge, which carries more than 33,000 vehicles each day across the Mandurah Estuary, approximately an hour south of Perth.
As the populations in Perth, Mandurah, Peel and the wider South West regions have grown, the original bridge, constructed in the 1980s, has reached its limits and is regularly congested.
The bridge duplication will provide a continuous dual carriageway, with the capacity to increase to three lanes if needed when the population expands.
The new bridge aims to provide drivers with a safer, quicker and more reliable journey. It will include a four-metre-wide shared path for walkers and riders, improving connectivity and access to recreational activities for the local community. A new fishing platform will also be constructed.
Dale Screech, Technical Executive – Geotechnical, WSP, said “It is fantastic to continue our srong, long-standing relationship with Georgiou to deliver another important infrastructure project for the Western Australian community. The work completed at tender stage provided significant innovations and cost savings which contributed to the success of our submission. We look forward to delivering another successful project with Georgiou for Main Roads Western Australia.”
Drone photo courtesy of Georgiou.
WSP’s primary services on the project so far have included geotechnical design, pavement and surfacing design, hydrogeological services, acid sulfate soils services, and construction support, including installation of geotechnical instrumentation.
The project is seeking an official Infrastructure Sustainability Rating during the planning, design and construction phases and aims to achieve sustainable outcomes for local communities and broader Peel region. The project vision includes delivering a positive legacy by embracing local culture, improving habitat and amenity, and enhancing sense of place.
This is a vision WSP wholeheartedly supports, aligning with our Future Ready approach and commitment to great places for life.
The project, jointly funded by state and federal governments, is expected to be completed by late 2025.
For more information on how WSP can support your project, please contact Dale Screech, Technical Executive – Geotechnical.
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