Conservation groups say the proposed Arizona routes for an Interstate 11 project failed to consider habitat for imperiled desert species.

The proposed I-11 highway will connect to Las Vegas but could eventually span from Mexico to Canada ... people and the climate.” The Arizona Department of Transportation confirmed in ...

Adopt a Highway program volunteers removed 10,400 bags of litter from Arizona freeways in 2024, ADOT announced.

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In response to a lawsuit from conservation groups, the Federal Highway Administration and Arizona Department of Transportation have agreed to halt planning activities and reevaluate their approval of Interstate 11.

A project to bring drinking water to Gallup, the Navajo Nation and the Jicarilla Apache Nation has received a lifeline of $120 million in federal funding for the next year.

The Arizona Department of Transportation is working to expand broadband access in the state as it embarks on a new project to lay more than 200 miles of fiber-optic conduit between Flagstaff and the California state line.

The improvement project along Interstate 10 near Sky Harbor International Airport continues to cause weekend road closures and lane restrictions.

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The Arizona Department of Transportation announced major weekend traffic closures for the Broadway Curve Improvement Project.

Planning for a new interstate through southern Arizona has been put on hold. 280 miles of highway between Nogales and Wickenburg expanding Interstate 11 had been proposed by federal and state transportation agencies,