On 2015\06\04 12:15, Roland Perry wrote:
In message , at 11:00:36 on Thu, 4 Jun
2015, Jim Chisholm remarked:
Eight boring machines have been cutting their way through earth
to create 26 miles (42km) of tunnels."

That's the new tunnels, plus the exciting machines which re-did
the kilometre of Connaught tunnel.
And isn't it a shame that these boring machines and their expert
workforce cannot now move directly to start CROSSRAIL2?

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

No, they could have just drilled inward to Tottenham Court Road, turned
left and descended and then carried on to do Crossrail 2. The links
between the east and west halves would be dug by hand, and eventually
the links between the north and south halves of Crossrail 2 would be dug
by hand as well. Not really a serious suggestion!