Premier Annastacia Palaszczuk has announced work on underground tunnels for the new Cross River Rail will begin at the end of this year.
Ms Palaszczuk recently awarded contracts of $5.4 billion to the project, becoming the state’s biggest single infrastructure investment.
The Premier said the project will create more than 7000 jobs in Queensland, and when finished, will cut travel times in half.
The infrastructure project is set to be finished by 2024.