Uploaded December 2018 | Updated September 2026, 48 minutes ago

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World Tunnel Day (also known as St Barbaras Day) is today!

We're celebrating tunnels and the people that build them.

This is Chris Franken, one of the engineers working on the North Yarra Main Sewer diversion works.

In this video, Chris explains the type of specialist tunnel boring machines required to complete this work.

Learn more: westgatetunnelproject.vic.gov.au/sewerdiversion