'Clogged' infrastructure pipeline puts heat on projects

The future of some road and rail projects could be in jeopardy as the government vows to review the country's "clogged" infrastructure pipeline.

Infrastructure Minister Catherine King said the 90-day review of the Infrastructure Investment Program was a chance to go back to the drawing board to ensure as many projects as possible could be rolled out.

The infrastructure pipeline is worth $120 billion and has 738 projects, 162 of which have a government commitment of $5 million or less, compared with 146 when Labor was last in government 10 years ago.

Ms King said cost overruns meant some projects previously announced by the coalition would not be able to be delivered.

Projects already announced in the budget or under construction would not be impacted by the review and Ms King said there was no target for how many projects would be cut.

"We have seen massive cost overruns, because again, the government previously did not do the work to actually make sure we had proper costings for these project," she said.

"They were interested in the announcement, interested in the media, interested in the electoral outcome, not interested in the actual delivery of infrastructure."

Prime Minister Anthony Albanese said the review would ensure the program remained sustainable.

"We want to make sure that the sort of disasters that have occurred, whereby projects that might have cost hundreds of millions of dollars, had yet $80 million or $50 million attached to them with no prospect of it being included," he said on Monday.

"Projects were being announced with no consultation with state governments, with no state government funding, that couldn't possibly be delivered."

Ms King said the pipeline was clogged, with large delays on many of the infrastructure measures.

Nationals leader David Littleproud said the review would leave regional parts of the country at risk, warning of crucial projects being scrapped.

"You've got to ask the question about the sincerity of Catherine King in this government. This is about setting up a budget that regional Australia pay," he told Sky News.

"If the road and rail infrastructure isn't right and to get product from a paddock to your plate, or onto a ship, then the bills aren't paid and your cost of living goes up."

Opposition infrastructure spokeswoman Bridget McKenzie said the government's "razor gangs" would cut important work.

"Continually cutting back on infrastructure projects will be a handbrake on economic growth and a barrier to driving national efficiencies needed to support budget repair and tackling inflation," she said.

"At the very time when the government budget repair strategy should be to invest in productivity enhancing capital and cut back on unnecessary recurrent expenditure, Labor seem determined to do the opposite, dooming the nation to a slow and painful recovery."

Australian Constructors Association chief executive Jon Davies said the review would lead to cancellation and deferrals on multiple builds.

"Delivery of infrastructure is not like a tap. It can't simply be turned on and off," he said.

"It is vital that industry is consulted in the review to avoid inflicting further pain on an industry that is already doing it tough as a result of having to absorb significant rises in material and labour costs."