Mandurah Estuary Bridge Duplication
Georgiou

Project Key Factors
Project Name: | Mandurah Estuary Bridge Duplication |
Client: | Georgiou |
Principal: | Main Roads Western Australia (MRWA) |
Site Location: | Mandurah, Western Australia |
Contract Period: | September 2024 – March 2026 |
Project Value: | Approximately $3.2 million |
The Project
The Mandurah Estuary Bridge Duplication project involved the construction of a second bridge alongside the existing Mandurah Estuary Bridge, doubling road capacity across one of the Peel region’s busiest estuary crossings.
The completed works provide two traffic lanes in each direction across both bridges, together with an extended Principal Shared Path for cyclists and pedestrians, coloured feature lighting to complement the Mandurah skyline, and public realm elements including Aboriginal-themed artwork and yarning circles.
Our Scope
Mallee Karlip was engaged by Georgiou to deliver the electrical works associated with the bridge duplication, working within a live traffic corridor to maintain safe access across the estuary throughout construction.
Our scope included:
Installation of feature and architectural lighting
Installation and commissioning of MRWA-compliant street lighting and Principal Shared Path lighting
Installation of lighting poles, luminaires, outreach arms, brackets and associated cabling
Removal, relocation and installation of electrical infrastructure
Installation of pits, conduits, concrete collars, pit lids and associated civil infrastructure
Installation, termination and testing of power, control, communications and fibre-optic cabling
Installation of fibre-optic communications backbone infrastructure
Installation, relocation and energisation of main switchboards, distribution boards and lighting control panels
Manufacture, installation and testing of ITS cabinets and associated UPS systems
Delivery of works within live traffic environments, including planned nightshift activities and works under traffic management
Progressive electrical testing, verification and commissioning
Support for Site Acceptance Testing, Network Integration Testing, System Integration Acceptance Testing and Final System Testing
Completion and verification of Inspection and Test Records and supporting quality documentation
Preparation of redline mark-ups and as-built documentation
Defect identification, punch-list management and close-out
Coordination with Georgiou, MRWA, designers, manufacturers, suppliers and other project stakeholders
