Australia NewsMelbourne’s Metro Tunnel Project to Blow Out by $2.7BSaveMark Us Preferred on GooglePrintA general view underground from the site of the currently being built, State Library station, as part of the Metro Tunnel metropolitan rail infrastructure project on November 06, 2020 in Melbourne, Australia. Asanka Ratnayake/Getty ImagesAAP12/11/2020|Updated: 12/11/2020The cost of Melbourne’s metro tunnel has blown out by $2.74 billion, with the Victorian government relying on half to come from taxpayers.The extra money adds to the $11 billion the state government has already committed for the major inner-city rail project.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.