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until WED 12:00 AM MDT, Northeast Plateaus and Mesas Hwy 264 Northward, Chinle Valley, Northeast Plateaus and Mesas South of Hwy 264, Black Mesa Area, Chuska Mountains and Defiance Plateau

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from TUE 3:14 AM MST until TUE 6:15 AM MST, Maricopa County

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Diverging Diamond Interchanges being built in Phoenix

Published July 21, 2017 10:24 PM MST

Published July 21, 2017 10:24 PM MST

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As Arizona works on ways to prevent wrong-way crashes, they are also working to get rid of certain roundabouts in the Valley, and replace them with a type of intersection known as "Diverging Diamond Interchanges".

FOX 10's Courtney Griffin reports.