At Seqwater, some of the dams we operate were built decades ago and, just like cars, they need regular maintenance to keep them in good working order and meet changing safety standards and guidelines.

In 2012-13, Seqwater commissioned an independent review, which found improvements are needed at many of our 26 regulated dams to meet Queensland’s dam safety guidelines and bring them in line with the latest engineering standards.

Somerset Dam safety upgrade

Somerset Dam is one of several dams identified for upgrade as part of Seqwater’s Dam Improvement Program.  The dam plays an important role in the SEQ Water Grid and its continued performance and safety is critical to South East Queenslanders.

The aim of the upgrade is to improve the dam’s ability to withstand extreme floods and earthquakes. At this stage, construction is expected to start by 2021.

Temporary full supply level

In 2016, the flood operation procedures for Somerset Dam were modified as a precautionary safety measure and drinking water levels of both Somerset and Wivenhoe dams were temporarily lowered to maintain flood mitigation benefits provided by both dams. Somerset was lowered to 80 per cent of its normal drinking water storage and Wivenhoe to 90 per cent.

The full supply levels in both dams will remain lowered until Somerset Dam is upgraded.

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