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December 3, 2021

New plan to minimise flood hazard in Lismore

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Lismore City Council has commenced the preparation of a new Flood Risk Management Plan that will identify the measures designed to minimise the community’s exposure to flood hazard.

The Floodplain Management Committee, which is overseeing the preparation of the new Flood Risk Management Plan, met last week with Engeny Water Management, which has been engaged by Council to prepare the new Plan.

Flooding in Lismore. Image: Lismore Council

The Committee has focused on increased preparedness and education on flooding and to create new strategies such as nature-based solutions to mitigate the flood threat further upstream before it hits the Lismore urban areas.

Principal Engineer of Engeny Water Management, Mark Page, said the initial investigation had resulted in viable options that now need further analysis.

‘All the initial work to understand flood behaviour and find risks has resulted in us developing preliminary measures to reduce the risk of flooding to the community,’ Mr Page said.

‘Now it’s time to engage with the community, gain feedback and ultimately develop the recommendations on how Lismore can manage the flood risk to the community.

‘Crucial parts of the plan is getting the education and preparation right prior to a flood event and ensuring the messaging is clear during a flood.’

Mr Page also said the proposals coming forward to the community will include both structural and non-structural options.

‘The community will have a variety of options such as non-structural options which are non-engineering solutions that include land use planning and flood emergency management, while the options for physical measures that involve structural work include nature-based solutions, widening flood plains and drainage and levees,’ he said.

The next steps in the Floodplain Risk Management Plan will be investigating flood mitigation using nature-based solutions, looking at the role of community responses to floods and initial community engagement and feedback.

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  1. For a start the creek banks and riparian zones all the way between the headwaters and springs and the sea must be regenerated and replanted with their original vegetation, or at least what has survived, excluding cattle and replacing coral and weed and camphor thickets. The flood wave that originates up here in the valleys, takes a mere 2 1/2 hours or so, before it has rushed down the hills like an express train, and is inundating Lismore. The greedy, ignorant management of the local waterways by successive State and Local governments, allowing almost complete deforestion of hillsides and waterway banks, has decimated and collapsed the banks and riparian zones and their living creature populations, while silting up the so called Wilson’s Creek which used to be deep enough for carrier boats. Shame, shame, this is where all our predecessors’ environment management greed and stupidity finally lands on our today”s doorstep.


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