Lake Rowlands Dam to Carcoar Dam pipeline

Lake Rowlands Dam to Carcoar Dam pipeline

About the project

WaterNSW has been engaged by the Department of Planning Industry and Environment (DPIE) to prepare a Detailed Business Case to explore the option of building a water transfer pipeline from the Central Tablelands Water-operated Lake Rowlands Dam to the larger WaterNSW-operated Carcoar Dam.  This follows recommendations by Infrastructure NSW in the 2018 State Infrastructure Strategy and WaterNSW’s Lachlan Valley Water Security Study.

The Detailed Business Case for the Lake Rowlands to Carcoar Dam pipeline will be developed to align with the Lachlan Regional Water Strategy which is currently being finalised by DPIE. The Lachlan Regional Water Strategy will identify policy, planning and infrastructure options that deliver resilient water resources for all water users in the Lachlan catchment.

The Detailed Business Case and the Lachlan Regional Water Strategy are supported through funding from the Snowy Hydro Legacy Fund. The Lachlan region draft strategy is scheduled to be released for public exhibition in mid-2020. For more information on the Lachlan Regional Water strategy go to

The proposed two-way pipeline will help contribute towards improving water access reliability for the region and industries by transferring water from Lake Rowlands Dam to Carcoar Dam when appropriate volumes are available.  This will result in efficient, long-term storage of available water and increase operational flexibility for urban and rural water supply.

The development of the Detailed Business Case will involve stakeholder consultation, as well as comprehensive environmental and engineering studies.  These studies will begin in the third quarter of 2019 and extend for around 12 months. Outcomes of this study will be included in the Detailed Business Case and submitted to Infrastructure NSW as part of the IIAF gateway process.

  • Achieving the primary water security objectives in the Lachlan Valley
  • Providing benefits to customers
  • Informing key stakeholders so they remain informed as the project progresses
  • Easing the future impact on existing customers’ water prices
  • Providing a greater level of water security

Project Schedule

  • Mid to late 2019: Field investigations
  • Late 2019: Concept design and REF
  • Mid 2020: Detailed concept design and Business Case


Media Releases

Community Information Sessions

WaterNSW have postponed the community information session that was planned on Tuesday March 24th 2020 in Canowindra.

The unprecedented outbreak of COVID-19 has resulted in the Australian Government issuing a number of requirements in order to slow the spread of the virus. WaterNSW and GHD are mindful of the collective safety of the communities in which we are working.

In order to take into account the safety of the communities in the Lachlan Valley, WaterNSW has made the decision to postpone the community information session for the Lake Rowlands to Carcoar Pipeline Project that was scheduled for Tuesday 24 March 2020.

WaterNSW are currently investigating alternative methods to facilitate these sessions that will remove the need for physical contact and therefore comply with the social distancing requirements that have been implemented by the Australian Government.

We are committed to ongoing consultation with the stakeholders and communities in the Lachlan Valley. As such, we want to ensure that information be distributed and feedback received, in a safe manner and through technology that is easily accessible and reliable.

Invitations to the updated sessions will be issued shortly with detailed instructions for how stakeholders and the community can participate in a meaningful way.

Contact Details

For more information about the project or to enquire about any of the project activities contact us or call 1300 662 007

Project Manager: Andrew Lavelle

NSW Government

This project is supported by the Department of Planning Industry and Environment.


Tuesday 31 March
2,153,394 ML
2,596,150 ML
9,048 ML
1,293 ML
11,985 ML
Tuesday 31 March