ADOT to test construction technology to extend roadway life

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By Chloe Nordquist By Chloe Nordquist
By Chloe Nordquist By Chloe Nordquist
By Chloe Nordquist By Chloe Nordquist

PHOENIX -- The state will pave Interstate 40 east of Flagstaff as the first project with a new construction method.

"Intelligent compaction" will allow The Arizona Department of Transportation to operate more efficiently.

This new method will improve efficiency and provide longer-lasting pavement that will potentially extend the life of roadways.

This will save the state time and money. For example, using the new technology, the $15 million I-40 Walnut Canyon to Twin Arrows project could cost up to $750,000 less.

ADOT crews will test the technology during spot repairs on I-40 east of Flagstaff this winter.

“Intelligent compaction is just one way ADOT is incorporating the latest technologies to protect Arizona’s $19 billion transportation system,” ADOT Director John Halikowski said. “Continued use and improvement of intelligent compaction technology will help keep drivers safe, improve the efficiency of the highway system and allow ADOT to be a high-performing organization at a time when funding for transportation is limited.”

New benefits of this technology include better quality control, reduced repair costs, improved durability of the roadway, and more.
Intelligent compaction uses special vibrating rollers with an integrated measurement system, a map-based GPS, and an onboard display and computer reporting system.

This allows crews to collect information in real-time.
However, this new technology will cost contractors an additional $25,000 to $50,000 to add to each roller.