Modern Countries with Aging Infrastructure

Bridge collapses arising from quality control issues during construction and from aging of infrastructure causing reduction in load capacities are rare and unfortunate events.  The figure 1 shows the failed De la Concorde overpass that collapsed in Laval Quebec in 2007.  A summary of the conclusions from the commission into the failure clearly points to poor construction followed by inadequate condition assessment over time. 

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Park Sunghyun