Balickera Tunnel rehabilitation

Hunter Water is proposing to carry out rehabilitation of the Balickera Tunnel to ensure ongoing reliable transfer of water from the Williams River to Grahamstown Dam via the Balickera Pump Station.

The 1.2km tunnel was constructed in 1962 and is a key piece of the region’s water supply infrastructure.

The work will involve removing loose rocks and reinforcing the tunnel walls to provide long term structural stability.

This project is part of Hunter Water’s program to upgrade water and wastewater-related assets across the region.

The tunnel is a known roost site for a number of threatened microbat species and the proposal is likely to have a biodiversity impact on these colonies due to temporary exclusion from the tunnel. The affected species are listed as ‘Vulnerable’ under the NSW Biodiversity Conservation Act 2016 (BC Act) and include:

  • Little Bent-winged Bat (Miniopterus australis)
  • Large Bent-winged Bat (Miniopterus orianae oceanensis)
  • Southern Myotis (Myotis macropus).

Hunter Water has elected to prepare a Species Impact Statement in accordance with Section 7.8 (4) of the BC Act because the proposed rehabilitation works were considered likely to have a significant impact on these threatened species.

View the environmental assessment documents placed on public exhibition

Project update

We are sought feedback on the Review of Environmental Factors and Species Impact Statement between Friday 13 August and Friday 10 September 2021 (28 days).

The feedback is now being considered and a “Response to Submissions” report is now being prepared. This report will form part of the submission to the Department of Planning, Industry and Environment, NSW for their concurrence.

Thirsty for more information?

Contact us if you would like to learn more about the Balickera Tunnel rehabilitation project.