Building dams to protect Lismore from flooding would cost billions. Could nature do it better?

Sun, 26 Jul 2026 11:31:17 +1000

Andrew Pam <xanni [at] glasswings.com.au>

Andrew Pam
<https://theconversation.com/building-dams-to-protect-lismore-from-flooding-would-cost-billions-could-nature-do-it-better-287370>

"The unprecedented flooding in New South Wales in 2022 killed 13 people across
the state, left 4,000 properties uninhabitable and damaged a further 10,900
homes. Lismore was especially hard hit due to its location on the Wilson River
floodplain.

In response, Australia’s national science agency CSIRO has developed a
high-resolution computer model to support flood mitigation research. In a
recent report, the agency outlined how building ten large “detention” dams –
could reduce flooding in the Richmond and Wilson River valleys.

Governments have committed several million dollars to a detailed study that
will look at the economic, environmental and structural aspects of the proposed
dams.

However, there are many reasons authorities should be cautious before
committing financial and political resources to these schemes."

Cheers,
       *** Xanni ***
--
mailto:xanni@xanadu.net               Andrew Pam
http://xanadu.com.au/                 Chief Scientist, Xanadu
https://glasswings.com.au/            Partner, Glass Wings
https://sericyb.com.au/               Manager, Serious Cybernetics

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