Queensland's opposition wants the state Labor government to match Commonwealth funding to build the long-awaited Sunshine Coast rail duplication when the state budget is handed down next month.
The federal government this month announced $390 million for the 40km rail line duplication between Beerburrum and Nambour, proposing the state government match the funding with a 50-50 split.
With the state budget due on June 12, the Queensland Liberal National Party has renewed calls for the Palaszczuk government to match the funds.
"There is now no excuse for the Palaszczuk government not to commit to this project," Deputy Opposition Leader Tim Mander told reporters on the Sunshine Coast on Thursday.
"We want the government to be more regionally focused, and this is a classic example of a regional project which will deliver hundreds of jobs and help the residents of the Sunshine Coast."
But Acting Premier Jackie Trad said Commonwealth money would not be available straight away.
"Unfortunately the funding from the federal government won't be available for some four to five years, which is a bit disappointing," Ms Trad told reporters in Cairns on Thursday.
"We have taken that into consideration and will be making announcements in our budget around that."
The LNP has previously criticised the government for focusing on its signature $5 billion Cross River Rail project for Brisbane, claiming it's ignored other important infrastructure projects.
But the government argued the Sunshine Coast rail duplication would be useless without a second rail crossing over the Brisbane River to remove a looming bottleneck to passenger capacity.