TBM licence
Metro Tunnel Education:
TBM licence
Find out how our tunnel boring machines work
and pick up your TBM licence.
Once you’ve completed one or more of these activities, come back here to download your TBM licence. Congratulations!
Breaking news
Four huge tunnel boring machines (TBMs) will dig the twin nine-kilometre tunnels. Like giant mechanical earth worms, they will chew through the rock and sand (silt) under Melbourne’s city centre.
Each one weighs 1000 tonnes (that’s about 150 elephants!).
TBM tracker
TBMs work day and night. They dig 10 meters of tunnel a day and the tunnelling will take about 3 years in total. View the tunnel tracker, to see where our TBMs are under Melbourne right now
Hooked on TBMs? We are!
You can find more information with links to videos, images and fact sheets here.