Collapsed Miami bridge was installed in just six hours with 'accelerated bridge construction'
The pedestrian walkway that collapsed Thursday in Miami, killing at least six people, was being built using a popular but relatively new bridge technology designed to speed construction while maintaining safety.
The entire walkway was built by the side of a seven-lane highway and driven into its position on the road in just six hours using a method called accelerated bridge construction, which the Florida International University helped popularize beginning in 2010. It was the largest U.S. pedestrian bridge to have been moved that way, the university said.
http://www.nbcnews.com/news/us-news/collapsed-florida-walkway-was-built-using-new-accelerated-bridge-technology-n857166?cid=eml_nbn_20180316
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