Flood preparations begin as River Murray levels start to rise

The risk is higher in the Riverland than along the Lower Murray, but Premier Peter Malinauskas says the state government is planning for every possibility.

Flood preparations begin as River Murray levels start to rise
Peter Malinauskas addresses Adelaide media on Wednesday as Susan Close and Joe Szakacs watch on. Image: Peter Malinauskas/Facebook.

River Murray communities will be given the “best possible protection” as floodwaters begin to flow over the border from Victoria, South Australia’s premier has promised.

River levels are expected to rise over the next two months on the back of a wet winter and recent heavy rain upstream.

As recently as last Friday, the Department for Environment and Water predicted river flows would peak at 90 gigalitres per day at the border, but Premier Peter Malinauskas warned on Wednesday that they could reach 120GL/day – the highest level since the 1970s.

Anything over 100GL/day would normally be considered a flood in South Australia.

If river flows do reach that point, the State Emergency Service will issue advice for communities between the border and Wellington.

The risk of flooding would be highest in Renmark and other Riverland towns.

But in the worst-case scenario, water could test the levees along the Lower Murray, inundate parts of Sturt Reserve and threaten low-lying properties at Mypolonga, Avoca Dell and Swanport, according to DEW projections.

The last time River Murray flows surpassed 120 gigalitres per day was in 1975, when water covered parts of Murray Bridge’s riverfront. Photo: Bernice Waymouth/State Library of South Australia (B64310/234).

Mr Malinauskas said authorities were planning for every eventuality.

“We’ve seen the devastating human and economic impacts of floods in the eastern states,” he said.

“The government is acting now to ensure river communities are as well prepared as possible, should challenges arise.”

He urged councils and land owners to check that their levees were up to scratch.

There is significant time for people to prepare’

The good news is that water levels are not expected to peak in Murray Bridge until December 5-12.

The river was only three centimetres above its usual level on Wednesday, according to SA Water.

State Emergency Service spokesman Derren Halleday pointed out that South Australian communities had not received the same heavy rainfall as their interstate neighbours, either.

“The increased flow along the River Murray is a slow-moving and natural river event,” he said.

“There is significant time for people to prepare for the increased flows and potential flooding.”


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