In message , at 16:51:21 on Thu,
31 Jul 2008, John Rowland
remarked:
I'd be a bit surprised if you could get planning permission to build a
new bridge that's too low for a bus, over an existing street.

I think you could, for a railway.

Rebuild a bridge to the same height as before - but a brand new low
bridge?? What kind of railway would that be, anyway?
--
Roland Perry