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

A CSIRO report commissioned by the Morrison government found that building 10 new dams in NSW's northern rivers could have reduced 2022 flood levels by up to two metres, though not enough to prevent a key levee overflow. Governments have not committed to implementing the modelled measures, despite the floods being described as a one-in-100-years event that killed 13 people.