On Fri, 13 Jan 2012 13:09:44 +0000, Roland Perry
wrote:



There were extensive repairs to the M6 viaduct in the Castle Bromwich
area a couple of years ago, and the A14 flyover across Huntingdon
station is widely regarded as being about to fall down. One of the
bridges at the M6/M1 junction was replaced very recently.

I recall the Sunday Times getting excited about the M6 viaducts being
at risk of collapse in Birmingham, must have been in the 1970s or
'80s. The recent works are the second time they have had a thorough
going over that I am aware of.
The M6 bridge over the M1 was propped about 10 years ago. I don't know
what weakened it: poor design, over-use or salt, could have been any
of them.