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NSW’s deadly one-in-100-years floods could have been slashed by two metres using dams, CSIRO finds

The Guardian World Tuesday 30 June 2026, 08:18 UTC By Penry Buckley and Christine Tondorf 1 min read
Key Points

Governments have not committed to measures modelled in the report on Lismore’s 2022 floods, which led to the deaths of 13 peopleGet our breaking news email, free app or daily news podcastBuilding 10 new dams in New South Wales’s northern rivers could have reduced flood levels by up to two metres during devastating floods in 2022, but not enough to prevent a key levee overspilling, a report has found. The CSIRO report was released on Tuesday, four years after it was commissioned by the...

Governments have not committed to measures modelled in the report on Lismore’s 2022 floods, which led to the deaths of 13 people

Building 10 new dams in New South Wales’s northern rivers could have reduced flood levels by up to two metres during devastating floods in 2022, but not enough to prevent a key levee overspilling, a report has found.

The CSIRO report was released on Tuesday, four years after it was commissioned by the Morrison government following NSW’s one-in-100-years floods.

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NSW (ORG) CSIRO (ORG) Lismore (LOCATION) New South Wales’s (LOCATION) Morrison (ORG)
Originally published by The Guardian World Read original →

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