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Burrendong upgrade

Burrendong upgrade

Burrendong Dam

  • Burrendong crestLocated on the Macquarie River, 30km south east of Wellington in NSW
  • Dam completed in 1967
  • Storage capacity of 1,188,000 megalitres

About the upgrade

  • Approximately $28 million
  • Funded by the NSW State Government
  • 2010 start date
  • 2017 expected completion

Packages of work

  • 1A Crest raising works - Raising the height of the main dam wall and saddle dam B, new raised embankment at saddle dam C.
  • 1B Spillway works - Construction of an auxiliary spillway and strengthening the existing spillway gate arms to enable Burrendong Dam to better withstand and safely pass an extreme flood.  
  • Spillway automation and control system upgrade - The main spillway electrical, lighting, automation and control system is also being upgraded.

The road over the main dam wall will be closed to public during construction and may remain closed thereafter. The permanent storage capacity and water releases will not be altered by the upgrade.


  • Improved dam safety in the event of extreme flooding.
  • Improved environmental outcomes.
  • Improved flood management.
  • Increased sustainable regional development.
  • Stimulating local economies.


  • 2010 April - Commence construction of crest raising works.
  • 2011 April - Complete construction of crest raising works.
  • 2014 Mid year - Commence construction of spillway works.
  • 2014 December - Complete construction of spillway works.
  • 2016 Late - Commence spillway automation and control system upgrade
  • 2017 Mid year - Complete spillway automation and control system upgrade.


  • 2014 December - Construction of auxiliary spillway and spillway gate strengthening completed
  • 2014 February - Stage 1B (auxiliary spillway works) contract awarded to Bardavcol
  • 2011 June - Crest raising complete
  • 2011 February - Stage 1B (spillway works) detailed design undertaken
  • 2010 April - Construction (crest raising) commenced
  • 2010 February - Stage 1A (crest raising) construction contract awarded to Macmahon Contractors Pty Ltd
  • 2010 February - Parsons Brinckerhoff Pty Ltd engaged to provide construction site management services
  • 2010 February - Stage 1A (crest raising) GC21 start-up workshop

Fact sheet

Media releases




Phone: 1300 662 077

Send us your inquiry

Tuesday 24 April
1,895,757 ML
2,581,749 ML
11,967 ML
1,710 ML
-14,270 ML
Tuesday 24 April