Arthur Conan Doyle wrote:
Roland Perry wrote:

Not really, much of them will be worn out, and it's a real issue getting
them out of the ground.

Surprised they didn't just leave them like they did with the Chunnel TBMs.

I think one cutter head has been abandoned at Farringdon (discussed at
length here a few months ago). The rest have been extricated and, I
believe, returned to Germany for refurbishment. I don't know how much of
these well-used, huge machines can be re-used.