Genoa bridge collapse a disaster 'waiting to happen'
Genoa's Morandi motorway bridge, a 200-metre (650-foot) portion of which collapsed on Tuesday killing dozens of people, has been riddled with structural problems since its construction in the 1960s, which has led to expensive maintenance and severe criticism from engineering experts. The technology of pre-stressed reinforced concrete used in the construction was the hallmark of its designer, the celebrated Italian engineer Riccardo Morandi, who died in 1989. Dubbed patent "Morandi M5", he had used the technology for other works, including a wing of the Verona Arena in 1953.