In message , Basil Jet
wrote:
The DC service is presumably DC because it shares track with the
Bakerloo, not because of any clearance issues. Did the adjacent tunnels
have to be enlarged for the catenary?

It was built as a DC route because it shared trains with the Bakerloo,
decades before AC electrification came near Euston.

It is quite possible that, since steam wasn't expected to use the lines,
the tunnels were built to a tighter loading gauge. But I don't have data
conveniently available to me.

(You could do a FoIA request on the clearance.)

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Clive D.W. Feather | Home:
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