Botany Rail Duplication: 2026 Construction Update
Sydney’s Botany Rail Duplication project, a A$400 million upgrade, will boost freight capacity and reduce road congestion. This crucial railway sector news impacts Port Botany and the wider NSW freight network.

Project Profile: Botany Rail Duplication
The Botany Rail Duplication project is a critical infrastructure upgrade that has enhanced the capacity and resilience of Sydney’s freight network. The project involved constructing a second 2.9 km track within the existing Port Botany rail corridor, resolving a major bottleneck and enabling more efficient rail freight movements between Australia’s largest container port and the metropolitan network.
| Attribute | Details |
|---|---|
| Project Name | Botany Rail Duplication |
| Location | Port Botany Rail Corridor, Sydney, NSW, Australia |
| Length | 2.9 km of duplicated track |
| Estimated Cost | A$400 million |
| Status | Operational |
| Key Contractors | Australian Rail Track Corporation (ARTC), John Holland (Construction), WolfPeak (Advisory) |
Technical Specifications
The core of the project was the duplication of the remaining 2.9 km single-track section of the Botany Line. This required extensive civil engineering works within a constrained live rail corridor. Key technical components included the construction of four new rail crossovers to improve operational flexibility and maintenance access. The project scope featured significant bridge works, including the construction of new bridges at Mill Stream, O’Riordan Street, Southern Cross Drive, and Robey Street, alongside the complex reconstruction of existing bridge structures. To accommodate the new track alignment, substantial embankment and retaining wall structures were erected. The project was completed with a full upgrade to bi-directional signalling systems and the relocation of major utilities and drainage infrastructure to support the expanded corridor.
Key Takeaways
- Enhanced Freight Capacity: The duplication allows for a significant increase in daily freight train movements, projected to reach 45 trains by 2030, effectively accommodating a projected 77% increase in freight volume from Port Botany by 2036.
- Economic Competitiveness: The A$400 million investment strengthens Port Botany’s role as a premier international trade gateway, reducing logistics costs, improving supply chain reliability, and supporting sustained economic growth in New South Wales.
- Environmental and Social Benefits: By enabling a modal shift from road to rail, the project significantly reduces truck congestion on Sydney’s road network. Each additional freight train removes approximately 54 trucks, leading to lower carbon emissions, improved local air quality, and increased public safety.
Frequently Asked Questions (FAQ)
When did the Botany Rail Duplication project open?
The Botany Rail Duplication project is now operational. Following its approval as State Significant Infrastructure in 2020, major construction commenced in 2021, and the upgraded line is now fully integrated into Sydney’s freight network.
Who built the Botany Rail Duplication?
The project was delivered by the Australian Rail Track Corporation (ARTC), a government-owned entity. The primary design and construction contract was managed by John Holland, with specialist environmental and planning advisory services provided by WolfPeak.



