Marratxi wrote:
Why would it require any at all? Surely it could just bridge it?


That would be the cause of the disruptive alterations. It's generally
frowned upon to build a new bridge over an operating motorway...

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They did it with CTRL and the QE2 bridge so why not elsewhere ?

In case I wasn't clear above, I meant "over a motorway without closing
the motorway for the duration of the bridge-building". Obviously you
can build a bridge over a motorway, but you can't do it without
disrupting traffic, which is what the original "why would it require
any at all" question was about.

--
John Band
john at johnband dot org
www.johnband.org