In article , Howard
Berkowitz writes
In article , "Keith Willshaw"
wrote:


Depends on size. At some point, the problem of disposing of the
excavation becomes an issue.

Such activities could be hidden. You could tunnel out into the
countryside from an urban area where there is normal building
development, dig your bunker from within that tunnel, and use that
tunnel to take away the spoil from your deep shelter excavations. Who
counts the trucks leaving a civil development area?

Cheers,

Dave

--
Dave Eadsforth