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The bridge catastrophically fell short during the evening heavy traffic on 1 August 2007, breaking down to the river and also shores beneath. Authorities shared issue about lots of other bridges in the USA sharing the very same style and also raised questions regarding why such a defect would certainly not have actually been discovered in over 40 years of evaluations. The Dee bridge after its collapseThe Dee bridge was developed by Robert Stephenson, utilizing actors iron girders reinforced with functioned iron struts. On 24 Might 1847, it fell underpinning contractors down as a train passed over it, eliminating five individuals.