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The De la Concorde overpass collapse occurred at a bridge over Quebec Autoroute 19 near Montreal, Quebec, Canada, at midday on September 30, 2006. On that Saturday, around 12:30 pm, the center section of the south lane of an overpass ( section of a three-lane overpass) collapsed in Laval, a suburb of Montreal, on Boulevard de la Concorde running over Autoroute 19. The collapsed section crushed two vehicles under it, killing five people and seriously injuring six others who went over the edge while travelling on the overpass. The north-lane half, along the same bridge, did not collapse. The autoroute was closed for almost 4 weeks, "disabling an important north-south link between Montreal and its northern suburbs as well as the Laurentian region".〔 ==Immediately before== A number of people had noticed that the overpass was not in good shape: #"People living near de la Concorde and Highway 19 told The Gazette they had noticed the overpass had begun to crumble in recent months" #Carole Hackenbeck, less than a month before the collapse, noticed that there were "unusually large gaps and misaligned spacing in the deck-support structure underneath".〔 #"One witness told TVA television network that he noticed the road had sunk an inch or two when he travelled over the overpass minutes before the collapse, and he called emergency dispatchers".〔 #Also, "several motorists told the French-language all-news network Le Canal Nouvelles that they had called police up to an hour before the collapse to report seeing fissures appearing in the overpass roadbed and chunks of concrete falling to the road below". 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「De la Concorde overpass collapse」の詳細全文を読む スポンサード リンク
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