Great Western Highway Upgrade Program

Blackheath to Little Hartley Upgrade

We value your feedback on the Blackheath to Little Hartley upgrade and it will be taken into consideration as we refine the concept design and prepare the Environmental Impact Statement (EIS). Formal submissions will be invited during the display of the EIS, after which a Submissions Report will be provided. The Department of Planning are expected to place the EIS on display, and will invite community feedback, in the second half of 2022.

Investigations into the feasibility of a long tunnel between Blackheath and Little Hartley have been conducted. 

Studies have confirmed that 11-kilometre twin tunnels would deliver more benefits for the environment, the community and road users than two shorter tunnels beneath the villages of Blackheath and Mount Victoria.

Transport will take the Blackheath to Little Hartley tunnel option forward for further development, community consultation and environmental investigation.

We will hold online and face-to-face information sessions in May and June 2022 to answer your questions about the tunnel.

To attend an online or face-to-face information session register here.

A preliminary concept design has been prepared for the Blackheath to Little Hartley tunnels and will continue to be developed with further consultation and environmental assessments. The concept design will be used as the basis of an Environmental Impact Statement (EIS), which will be publicly exhibited, and feedback invited from the community in the second half of 2022.

Key tunnel features:

  • around 11 kilometres long, generally to the south of the existing Great Western Highway and Mount Victoria
  • twin tunnels allow for each direction of traffic to have a dedicated dual lane tunnel to separate traffic and increase safety
  • wide road shoulders to allow vehicles to stop safely without interrupting traffic flow
  • a depth of up to 200 metres below ground at the deepest point to the south of Mount Victoria
  • tunnel operation facilities including ventilation systems, drainage management, signage, lighting, and emergency evacuation systems.

Features of the tunnels, such as the on and off ramps, are subject to further development of the concept design.

The project team will be available to answer your questions about the tunnel at our online and face-to-face information sessions in May and June. Click here to register.

Benefits infographic