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

Rep. Greg Stanton has raised concerns about the potential withholding of $95 million in Bipartisan Infrastructure Law funds for the I-10 widening project.

Interstate 10 is closed from the Alabama state line to Gadsden County as freezing temperatures create dangerous conditions on ...

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive ...

The proposed freeway would run from Wickenburg to Nogales and has been subject to lawsuit filed by a conservation group.

In response to a lawsuit from conservation groups, the Federal Highway Administration and Arizona Department of ...

Interstate 10 heading into downtown Phoenix from the West Valley was closed briefly after a crash Wednesday morning.

Traffic heading into downtown Phoenix from the West Valley was blocked Wednesday morning by a crash on Interstate 10, ...

The Department of Energy issued $68 million in grants to accelerate the development and construction of public heavy-duty ...

BENSON — An Arizona Department of Transportation project extending the westbound Interstate 10 climbing lane in Benson is ...

A 56-year-old Arizona man has been sentenced to 10 years in prison for assaulting ... conspiracy to transport migrants for profit and transportation of migrants for profit, the release said.

A deadly crash has closed parts of a major freeway south of the Valley on Saturday morning. Details on the crash are limited.