Great Western Highway Upgrade Environmental Review Appendices for Leura to Katoomba

New South Wales, Australia, is the location for a proposed 2.5 km highway upgrade between Leura and Katoomba. The Roads and Traffic Authority (RTA) proposes converting this section of the Great Western Highway to a four-lane divided carriageway, including a cut-and-cover tunnel at Leura Hill. The dataset is a PDF document containing appendices to the Review of Environmental Factors for this project, published by the NSW Government and last updated in June 2026.

Use Cases

• Assessing environmental impact for a 2.5 km highway upgrade based on the project description
• Reviewing traffic separation plans for a cut-and-cover tunnel based on the proposal details
• Analyzing infrastructure proposals for four-lane divided carriageways in New South Wales based on the described scope

Strengths

• Project scope is clearly defined as a 2.5 km section of the Great Western Highway.
• Specific project elements are described, including a four-lane divided carriageway and a cut-and-cover tunnel.
• The dataset has a defined license (OGL-CA-2.0) and a specific last updated timestamp (2026-06-26).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The data is provided as a PDF, which may require extraction for computational analysis.

Provenance

Source

NSW Government

Collection Method

Likely compiled as part of an environmental review process for a transportation infrastructure project.

Freshness

Last updated 2026-06-26 17:06:46.580955; freshness should be verified.

Geography

A 2.5 km section of the Great Western Highway between Willow Park Avenue, Leura and Bowling Green Avenue, Katoomba, New South Wales, Australia.