High-tech sensors track performance of 35W bridge



By Jessica Mador, Minnesota Public Radio

“MINNEAPOLIS — Five years after the Interstate 35W bridge in Minneapolis collapsed into the Mississippi River, killing 13 people and injuring 145, officials say the new replacement bridge is performing well.

They can say that with confidence because the bridge is fitted with hundreds of high-tech sensors that track how the span reacts to things like weight on the bridge, vibration and temperature. Researchers say the data they collect from the span could change how bridges are designed in the future.”

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