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Mardie Salt & Potash

Marine Structures Export Facility

Marine Structures Export Facility

Engineering the essential services behind one of WA’s largest salt and potash export facilities

Client: McConnell Dowell / WGA
Location: Cape Preston West, WA / Thalanyji Country

The challenge

As part of BCI Minerals’ flagship Mardie Salt & Potash Project, the marine export facility at Cape Preston West needed to enable the seamless transport of 4.4 million tonnes of high-purity salt and 120,000 tonnes of sulphate of potash per year. Spanning 2.3 km out to sea, the jetty infrastructure demanded robust, high-performance services design — from high-voltage power, and lightning protection to fire safety and potable water systems — all integrated into a tight marine construction program with limited tolerance for error.

Our Approach

Lucid was engaged by WGA and McConnell Dowell during the Early Contractor Involvement and detailed design phases to support the engineering of all essential services. We collaborated closely with site contractors to align design outcomes with construction methodology, staging, and marine conditions. With careful coordination across multiple disciplines, Lucid ensured that all services were designed to perform reliably in the harsh Pilbara environment while maintaining compliance with marine, safety, and electrical standards.

Solutions delivered

  • 33 kV high voltage services, including RMU extensions, distribution transformers, and containment
  • Arc flash analysis, protection grading, and earthing system designs
  • Lightning protection design and risk assessment  for the jetty head end and land end infrastructure
  • Fire protection services including hydrants, hose reels, valves and integration of vendor packages
  • Potable water systems for washdown, safety showers, and amenities
  • REVIT LOD300 modelling and spatial coordination across all jetty service zones
  • Integration of vendor designs and alignment with marine structural packages

Outcomes

  • Seamless delivery of high-integrity essential services across a 2.3 km marine export facility
  • Improved constructability and program alignment through close contractor collaboration
  • Systems engineered to withstand coastal conditions and ensure long-term operational resilience
  • Design integration that supports safe, efficient salt and potash export operations

Better World Impact

By enabling the reliable movement of sustainable mineral exports, Lucid’s work at Mardie supports decarbonisation across global supply chains. It’s an example of how infrastructure services, engineered with care and foresight, can strengthen regional development and contribute to a more resource-efficient world.

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