Cairns Projects Cost Hundreds of Millions Across Water, Health, Roads

Cairns Regional Council lists its largest infrastructure undertaking as the Cairns Water Security Stage 1 project, a drinking water supply scheme carrying a $325.5 million price tag with construction awarded to John Holland Qld.

Water Security Allocation

The $325.5 million figure covers the full Stage 1 scope and stands as the biggest single commitment listed by the council for any current infrastructure item.

Hospital Bed Expansion

Separate records show the Cairns Hospital Expansion Project Tranche 1 adding 64 beds at a total cost of $171 million, with early refurbishment works already underway at the site.

Marine Precinct Funding

The Australian Government has committed $180 million toward the Cairns Marine Precinct, a development that will include a 5,000-tonne ship-lift and is scheduled to begin later in 2026 while generating 460 construction jobs during the build phase.

Highway Upgrade Split

Upgrades to the Captain Cook Highway between Cairns CBD and Smithfield carry a combined $287.2 million Australian Government contribution and $71.8 million Queensland Government contribution aimed at easing congestion, with early works expected to finish in late 2025.

Airport Redevelopment Costs

Cairns Airport lists two active projects: a $60 million Eastern Aviation Precinct and a $55 million international terminal upgrade, the first major terminal work since the facility opened more than 30 years ago.

These allocations appear across council, state and federal project summaries that track committed spending on water supply, hospital capacity, marine facilities, road capacity and airport infrastructure. The figures reflect announced totals rather than final out-turn costs and remain subject to the timelines stated in the source documents. Residents and businesses can track progress through the listed government project pages as further construction milestones are reached.