On Jan 25, 7:28*pm, Chris Sanderson wrote:

As far as im aware current plans for Crossrail dont involve breaching
it - there was talk of using it for spoil removal but it was too
expensive.

This is exactly how I understand it now - not to be breached in the
destructuve sense, but there had been planned some intrusion to use
the tunnel for construction access but that has been dropped.

--
Nick