Meg might be boring but just like Joan she's been hard at it, burrowing away beneath our feet.

Named after Australian cricket captain Meg Lanning, the Metro Tunnel's second boring machine has begun her part of the $11 billion project, digging away from the soon-to-be North Melbourne station towards Kensington.

Two tunnel boring machines are now on their way from North Melbourne to Kensington. Credit:Justin McManus

But Meg has got a fair bit of work in front of her having completed 50 metres of the nine-kilometre section.

Premier Daniel Andrews visited the Lauren Street site on Thursday and said he was pleased the machine had started up, following “painstaking” planning that had run into the years.