[gunsequalfreedom]

Thanks for posting this. I was wondering how Bertha was getting along. Poor girl, doesn’t sound good.

I too was wondering.

So it turns out it was not a rock or an old car but sand that caused the machine to stop?

[21twelve]

The seals are bad that protect the main bearing. But the machine was running hot from the very beginning - so perhaps an installation or design problem. Of course drilling through the drill pipe may have furthered the problem and damaged the seal even more?

And even when/if they get the thing fixed, they still have most of the tunnel left to dig.