Queensland's Labor government insists it hasn't let the federal government off the hook by fully funding the state's top infrastructure project - Brisbane's Cross River Rail - in the state budget.
The Palaszczuk government has committed to fund the entire $5.4 billion cost of the project, allocating $1.95 billion in its budget on Tuesday, on top of the $850 million previously allocated to the project.
The federal government chose not to allocate funds for the second Brisbane River rail crossing in its May budget, with Prime Minister Malcolm Turnbull stressing a full business case was a prerequisite.
At the time, Premier Annastacia Palaszczuk described it as a "slap in the face."
Deputy Premier Jackie Trad said on Tuesday the decision for the state to fully fund the project was designed to give businesses confidence, not to let the federal government dodge potential Cross River Rail funding.
"We are absolutely not going to let Malcolm Turnbull off the hook, this is a long term major infrastructure project," Ms Trad told reporters.
"The federal (coalition) government owes Queensland money to build the communities, to create the jobs, and create the future that our children deserve."
Ms Trad said federal funding would free up money to then spend on other projects, and they wouldn't let up pressure on the Commonwealth to pay their "fair share."
In parliament on Tuesday, the state's LNP opposition questioned how the Labor government could fund Cross River Rail without leaving itself in a budget black hole.
"This investment is simply too big to get wrong," deputy LNP leader Deb Frecklington said.
"The business case needs to be released so Queenslanders know what they are paying for."
