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Loop Line Upgrade Project Update

To ensure the Loop Line Upgrade Project meets the highest of environmental standards, Transport Heritage NSW is currently undertaking a detailed review of environmental factors as required by Transport for NSW.

What does this mean?

  • The Review of Environmental Factors (REF) is currently mid-way and involves a detailed assessment of project scope impacts on biodiversity, noise and vibration, waterways, Aboriginal and Torres Strait Islander peoples heritage, Non-Aboriginal heritage and contamination in order to protect our environment.

  • Construction on the line’s extension between Buxton and Colo Vale will commence after completion and approval of the REF, estimated to be April 2023.

As a result of this additional assessment work, the Loop Line Upgrade Project is now expected to be completed in 2024.

In the meantime, work continues on:

  • Design – including station precincts, level crossings and track

  • Track turnout construction and delivery

  • Building capacity for future operations – the restoration and return to service of steam locomotive 3001 and railcar 623/723

  • Regular meetings with local community groups

For further information, visit our Loop Line Project Page, including project FAQs to find the answers to some of your questions, or simply email your questions to


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