Canadian bridge takes up swaying trend
A footbridge in Ottawa has become the latest structure to fall victim to the pedestrian-induced movement which caused the UK's Millennium Footbridge to be closed only two days after opening. But this structure - the Alexandra Bridge which carries pedestrians between Ottawa and Hull - is almost 100 years old. The bridge, which has a main span of 167m, began to sway noticeably as hundreds of people crossed the bridge during Canada Day celebrations at the beginning of July. It is not the first time that such movement has been recorded on the bridge; at future events, the number of pedestrians is likely to be restricted.