Roads ravaged, potholes: Wet weather repair bill to top $3.8 billion

Ongoing, widespread wet weather has devastated road networks across Australia, leaving businesses and communities counting the costs.

Australian Local Government Association (ALGA) president Linda Scott said rebuilding these roads to current standards would only cost Australian communities more in the long term.

The ALGA represents the country's 537 local government councils, and she said thousands of kilometres of roads across NSW, Victoria, South Australia and Queensland have been severely damaged and in some cases washed away.

"ALGA has estimated the total cost of fixing and replacing these roads is in the vicinity of $3.8 billion, which is roughly the equivalent of Australia's annual foreign aid budget," she said.

"Considering the ongoing impacts of climate change, we can't simply rebuild our local infrastructure - including roads, footpaths and cycleways - to current standards, we need a fundamental shift in the way we fund, deliver and maintain these assets."

The ALGA has joined with the Australian Road Research Board (ARRB) to call for urgent help.

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ARRB chief executive officer Michael Caltabiano said this is an opportunity to evolve the way Australia's roads are constructed and managed to deliver more resilient outcomes.

"Moisture is kryptonite for roads, and inevitably leads to potholes. This year's floods and torrential rains have caused large scale catastrophic damage to the road systems that connect communities and deliver freight. Now is the time to reassess what innovations are possible to prevent a repeat of this infrastructure emergency," he said.

Mr Caltabiano said standards and materials used for constructing Australia's road systems needed to change, to improve water resistance and quicker recovery after significant rainfall events.

"Australia houses some of the smartest road technology in the world and the latest ARRB research shows many recyclables - including tyre rubber - are not only eco-friendly but create a more durable and resilient road surfaces," Mr Caltabiano said.

"ARRB also has a range of the state-of-the-art vehicles fitted with lasers and high-tech equipment to measure road conditions at traffic speed. Pinpointing the issues on a road can ensure valuable maintenance dollars are spent in the right place, at the right time."

Cr Scott said while councils appreciate the significant federal government support they receive, they need an increase in Federal Roads to Recovery funding from $500 million to $800 million per year to help invest in new technologies and build more resilient roads.

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"ALGA has advocated for betterment funding to be more effectively incorporated into Disaster Recovery Funding Arrangements, and we are pleased the government has indicated they are keen to progress these changes," she said.

"While many councils are facing unprecedented flooding, others in the Northern Territory and northern Western Australia see their roads washed away every wet season, and these councils need more support to break this cycle."

Cr Scott said the Government's new Disaster Ready Fund would play a key role reducing damage caused by natural disasters.

"No amount of innovation can save a road that's underwater, so it's vital we continue to invest in flood mitigation," she said.

"Allocating $200 million per year is a great first step, but we need to continue to grow this investment if we want to effectively safeguard our local towns and communities."