At vast expense they were erected and a year later they were dismantled. Horrific waste of taxpayers money. Also notable is that these were erected with nuts and bolts. Rather than dismantle them by unscrewing those nuts and bolts they chose to bring out the oxy-acetylene torches and burn through the structural steelwork. I suppose someone might have given a thought to careful removal for reuse later (perhaps on the future crossing) but I guess that in these days of disposable society it is considered used and therefore beyond usefulness. Perhaps also, in these times of rapidly rising steel costs, they could get more from the scrappy. Developing countries like India and China are using steel faster than the world can supply so today we're paying (at time of writing) double the price for the raw material than we were last year. Source: http://www.steelstrip.co.uk/steel-strip/archives/category/steel-prices -Update at April 2009 - in the depths of recession. It's all gone pearshaped - though no one is buying steel the stockholders are reluctant to drop their prices. It's a funny old world.

Now you see 'em: https://www.geograph.org.uk/photo/396369