MIAMI — Authorities say a 950-ton pedestrian bridge that collapsed onto a six-lane highway killing at least six people had undergone a "stress test" just before and the cables were being tightened when it pancaked onto traffic below.
After hours of searching for possible survivors amid tons of rubble, Miami-Dade Police Detective Alvaro Zabaleta said Friday that the operation "has turned from a rescue to a recovery operation.”
At least six people were killed in the accident Thursday afternoon. Four were found dead at the scene, and at least nine others were injured and taken to a hospital.
The $14.2 million pedestrian bridge was lifted into place Saturday and scheduled to open in 2019 to provide safe passage over Southwest Eight Street, also known as U.S. Highway 41, between the community of Sweetwater and the campus of Florida International University.
National Transportation Safety Board chairman Robert Sumwalt III said a team of specialists have started investigating the collapse.