2014 – Weirs – What Risk Do They Really Pose to Your Business?

Kathryn Whalley and Bob Clark

When Seqwater was established in 2008 it inherited from local governments 51 weirs of varying ages, sizes, design standards and condition. In order to better understand these structures, in 2012 Seqwater engaged NSW Public Works to undertake a condition and risk assessment of its weir portfolio. The assessment, consisting of a background review, site inspections, stability assessment and a collaborative risk workshop, examined risks to the structures, to Seqwater personnel and the public. Assessment of the risk consequences used Seqwater’s recent experience with repairs to weirs damaged in the 2011 and 2013 Queensland floods. The assessment was completed in 2013 and identified more than 1000 risks. It was recommended that more than 600 moderate to high risks be reduced through a prioritised program over the next 10 years. Weir performance following the 2011 and 2013 floods is also discussed.

$15.00

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