On Mon, 26 Apr 2004, Clive D. W. Feather wrote:

In article , Tom
Anderson writes
Linking Moorgate to Cannon Street

The way to do this without hitting vaults, foundations, etc, is to drive
the tunnel _under_ the existing Northern Line tunnel (unless the vaults
are already under the tube); the GN Electrics platforms at Moorgate are
already that deep, i think,

No, the GN&CR is *above* the Northern Line.

Foiled again! I'd have sworn i'd read somewhere that these platforms were
deeper than any tube; mustn't believe everything i read on the internet, i
suppose.

Anyway, that means the only remaining option is a viaduct.

tom

--
If you had a chance to do any experiment you pleased, unconstrained by any considerations of humanity or decency, what would you choose?