Johnson's 'bonkers' plan for £15bn bridge derided by engineers

Boris Johnson floated the idea of the bridge during a school visit last week. Photograph: Toby Melville/AFP/Getty ImagesEngineering experts have poured cold water over Boris Johnson’s “bonkers” plan to build a bridge between Scotland and Northern Ireland for £15bn.The prime minister – who first touted the idea of the 20-mile-plus bridge last year – put a price on his proposal for the first time last week, saying it would “only” cost the multibillio