Chengdu: Mounting costs associated with the Suburban Rail Loop are fast taking the project to a point of no return, after the Victorian government ordered delivery of four more tunnel boring machines from China.

Premier Jacinta Allan will visit a construction site outside the panda capital of Chengdu on Friday to announce the new order, which doubles the number of machines being assembled and freighted to Melbourne to help build Victoria’s largest, and largely unfunded, infrastructure project.

Jacinta Allan said Victoria should aspire to have a public transport system like China’s while signing the deal. Credit: Nine News

The additional machines, which are scheduled to arrive next year and be in the ground before the November 2026 state election, will bore twin tunnels between Glen

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