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To meet current Australian National Committee on Large Dams (ANCOLD) and Dams Safety Committee safety standards for high hazard dams, State Water is committed to improving the flood capacity of Chaffey Dam and reducing the risk of dam failure in the event of a flood event.
In 2004 an initial upgrade was undertaken by State Water to raise the dam crest.
In 2009 State Water commenced installation of an auxiliary spillway to immediately improve the safety of the dam. These works were completed in February 2011.
The next stage of the project comprises the augmentation and safety upgrade of the existing dam and will result in an increase to the Full Supply Level (FSL) of 6.5 m and an increase in the permanent storage capacity of the dam from 62 GL to 100 GL. |
