Preferred bidder announced for SRL East tunnelling contract

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A consortium of global tunnelling leaders is the preferred bidder for the first Suburban Rail Loop (SRL) East main works contract, with tunnel boring machines (TBMs) on track to start digging in 2026.

The contract is for 16kms of twin tunnels between Cheltenham and Glen Waverley – Victoria’s longest tunnels – and is expected to be awarded by the end of the year.

Suburban Connect is a consortium of global leaders in tunnelling including CPB Contractors, Ghella and Acciona Construction, with extensive experience in Victoria and Australia. The contract is expected to be awarded by the end of the year.

A second contract will be awarded next year for the tunnels between Glen Waverley and Box Hill.

Up to 10 TBMs will be used to carve out the full 26kms of twin tunnels for SRL East, with TBMs launching from Monash, Burwood and Heatherton.

Early construction of SRL East is now underway in Box Hill, Burwood and Heatherton, with works starting soon in Monash and returning to Glen Waverley and Clayton later this year.

Construction will create up to 8000 direct jobs and deliver 6 new underground stations between Cheltenham and Box Hill, slashing travel times and congestion and connecting people to key employment, health and education destinations in Melbourne’s east and south east. Trains will be taking passengers on SRL East by 2035.

Suburban Rail Loop