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$27 million federal grant will help ADOT research low-carbon transportation

Drone flight over the I-10 Broadway Curve in Tempe on Dec. 20, 2024.

The Arizona Department Of Transportation will use a $27 million federal grant to research the use of low-carbon transportation materials in Arizona. Funded by the Inflation Reduction Act, the study will explore innovative uses for recycled asphalt and concrete.

It’s the largest investment in the agency’s history committed to tracking and improving ADOT’s usage of sustainable road materials. The agency said it’s one of 39 state transportation departments to recently receive grants under the federal program.

ADOT spokesman Steven Olmsted said the agency has probably spent the last 10 years trying to define what sustainable pavements look like.

“But what we specifically get out of it is a much improved format to measure pollution reduction, energy efficiency, construction water use," Olmsted said.

In Arizona and nationally, state transportation departments are accelerating their ability to make more sustainable efforts and meet the public’s transportation needs, he said.

“I think there’s a wide set of concerns — just as Arizona residents — for quality of life," Olmsted said.  

ADOT will start its research in early 2025.

More Arizona Transportation News

Nick Karmia is a reporter at KJZZ.