We need your help to name six gigantic boring machines (TBMs) for the Metro Tunnel and West Gate Tunnel projects.

The machines are some of the biggest ever used in the southern hemisphere and will be named after groundbreaking Victorian women.

It’s been a tradition to name TBMs after women since the 1500s when miners prayed to their patron saint, Saint Barbara, for protection when they were excavating underground.

In the past, other tunnel boring machines have been named after monarchs, sports stars, mayors and fictional characters – but the new Victorian TBMs don’t have to be named after celebrities.

To nominate a groundbreaking woman, head to our competition page. The competition closes on Sunday 7 October.

The TBMs will begin digging under Melbourne early next year.