Macquarie Valley

Macquarie Valley

Valley storage level


Updated: 16 August 2019

The Macquarie Valley is one of the worst affected regions in this severe time of drought with storage currently at critically low levels.

  • There have been extreme low inflows (the amount of water entering the Macquarie Valley. Inflows since January 2018 are the lowest recorded inflows in history.
  • Stock and Domestic replenishment flows rely on rain and tributary flows and not from Burrendong Dam. This is causing significant social, economic and environmental impacts.
  • The drought is a natural disaster – it has not been caused by extraction or irrigation.
  • Until 317GL of inflows are received, new allocations to general security users won’t be possible.

Current stage

WaterNSW will be undertaking a range of drought mitigation projects to extend water supplies to meet critical human water needs to local communities in the Macquarie Valley. As the first stage, works will involve:

  • Temporarily raise Warren Weir by 50 centimetres to increase the pool and raise the operating level of the weir; and
  • Install temporary structures to block flows at Crooked Creek and Duck Creek Regulators. This will direct flows down the Gunningbar Creek Channel and Albert Priest Channel to support the townships of Cobar and Nyngan.

Construction started from Monday 26 August 2019.

Water flows will stop at the Duck Creek and Crooked Creek regulators from Wednesday 28 August 2019. When the temporary structures have been installed, they will be in operation immediately, and continue to stop flows downstream of the Duck and Crooked Creek regulators.

We encourage landholders downstream of Warren Weir, who:

  • are not connected to the local town water supply
  • solely rely on water from the creeks and river for domestic supply
  • do not have an alternate water source such as an active bore
  • are planning to truck water to their property

Please contact us on 1300 662 077 or email to discuss your domestic water needs.

See the latest notification (PDF, 676.45 KB).

Next stage

  • Late 2019 - Bulk water transfer from Windamere Dam to Burrendong Dam
  • Early – mid 2020 - Access the deep-water storage at Burrendong Dam
  • Mid 2020 - Based on zero inflows, delivery of full town water supply cannot be met

We will continue to keep the website updated as we progress with the project.

Community presentations and updates

While water storage in the Macquarie valley remains at critically low levels, we will update you as news comes in via our media releases and water operations updates. This will be in addition to our weekly Regional NSW drought report.

Contacts and feedback


Wednesday 18 September
1,276,511 ML
2,596,150 ML
8,655 ML
1,237 ML
-675 ML
Wednesday 18 September