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5 Years After I-35 Collapse, Big Leap in Bridge Sensors

from Futurity

Five years after the deadly I-35W bridge collapse in Minneapolis, MN, advances in sensors are making warning systems more affordable and practical. A new generation of these devices is needed to adequately monitor the nearly 150,000 U.S. highway bridges — about one in four — listed by the federal government as either "structurally deficient" or "obsolete," say researchers at the University of Maryland. "We no longer need to roll the dice when it comes to the structural integrity of the nation's highway bridges," says engineer Mehdi Kalantari. "Technical advances in wireless sensors make real-time monitoring both affordable and practical." Kalantari's startup, Rensensys, has manufactured systems for use in the private sector and for testing by Maryland State Highway officials. more

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