Two residents of Echuca, a flood-hit northern Victorian town, said their community will be divided by a makeshift clay levee for months, with a class action now brewing over the barrier.
The home of Nick Dean and his wife Kerrie is one of dozens of properties on the "wrong side" of the three-kilometre wall, built over the past week.
Some residents claim the levee is pushing water back into homes, with the Murray River sitting at a current major flood level and expected peak of 94.9 metres.
This surpasses the historic flood levels of 1993 and 1975.
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The Deans told Today, river water has flowed into their backyard, reached the garage and "all through under the house", which sits 1.1 metres off the ground.
They fear what the rest of summer could hold as they've been told the levee is not going anywhere anytime soon.
"They're saying will be here till February," Kerrie said.
"With that river rising and dropping and the rainfall that we're destined to have, it will be here for quite a few months.
"We need to get everything out. It turned into a sludge pit. It's slippery and dangerous for residents to go up and over."
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Nick said they are considering taking legal action against the council, claiming they've not received any contact from councillors.
"We've been left on our own down here," he said.
"We call it the 'Shire of Catastrophe' now, not the Shire of Campaspe.
"They haven't been near. There's been no contact. It's heartbreaking.
"If that's what the guys down here want to do I would certainly be involved in that (class action).
"If there are any legal firms watching the show this morning that specialise in that thing please make contact."
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Floods crisis continues
Communities across the east coast are facing another day of uncertainty with flood waters remaining high across many waterways.
As of 9:20am, there are 73 flood warnings in effect across Victoria, stretching from the state's south to the NSW border.
Of these, five remain at emergency level.
NSW SES Deputy Commissioner Daniel Austin is hopeful the Murray River has now reached its peak around Echuca, and Moama on the NSW border.
"It's been hovering at a pretty consistent level," he said.
"We've been waiting for it to peak, hoping very much it will peak and start to provide some relief to the communities."
Austin said the magnitude of flooding across NSW is hard to grasp.
"I don't think some people really grasp the magnitude of really what we are facing across all of NSW at the moment," he said.
"All the way from the Queensland border to the Victorian border we've got significant flood warnings in place, 140-plus warnings… 23 of those at the emergency warning level.
"There are thousands of kilometres worth of highways and roads under water. We talked about crops. We've talked about houses.
"This really is a massive effort."
Jonathan Howe, senior meteorologist from the Bureau of Meteorology (BoM) said the weather focus is shifting to north-east NSW, all the way up into Queensland to Mackay.
"We are looking at the possibility of severe thunderstorms that could produce localised flash flooding," he said.
"Some strong winds but of course many other communities through inland parts of NSW are still struggling with significant flooding, so Wee Waa, Narrabri, Condobolin, Narrandera.
"Overnight the heaviest rainfall was on the NSW South Coast. We saw more than 100mm around the Bega area."