Federal Highway Administration (FHWA)

The Final Tier 1 Environmental Impact Statement for the 280-mile Interstate 11 study corridor – stretching from Nogales to Wickenburg – is now available for public review. 

After five years of study, technical analysis and input from communities and stakeholders, this publication of the I-11 Final Tier 1 EIS marks a milestone for the proposed corridor.

The Final Tier 1 EIS, including a Preliminary Section 4(f) Evaluation, is available at i11study.com/Arizona/index.asp.

While those other drivers during your commute may sometimes seem like a nuisance, the truth is they - and you - are an important part of making sure the state gets its fair amount of transportation funds.

The Arizona Department of Transportation has received a 2019 National Roadway Safety Award for the wrong-way vehicle alert system being tested on Interstate 17 in Phoenix.

Using a federal grant, ADOT recently obtained two drones and certified two pilots to help share views of projects and landscapes.

ADOT joins other DOTs in seeking a federal grant to develop a program alerting commercial truck drivers to available public parking at I-10 rest areas.

A 1971 public meeting in Globe to discuss a new route for US 60/70 is one example of ADOT's commitment to public comments on its projects.

Recognizing that states can comply with federal environmental requirements on their own while streamlining processes, a new agreement assigns ADOT environmental review authority and responsibility for many projects found to not have significant environmental impacts.

ADOT was on hand for an Innovation Exchange Campaign event held this week in Tempe. Get a glimpse of the future.

With a three-year environmental study that began recently for an I-11 corridor between Nogales and Wickenburg, here’s a quick rundown of who’s involved.

The Loop 202 South Mountain Freeway has received final approval from the Federal Highway Administration, which means ADOT can now move the project forward.

Through a collaborative effort among ADOT, DPS, FHWA and MAG, a new program was recently launched that stations DPS officers at the Traffic Operations Center.

Back in the early 2000s ADOT started to hear from drivers who said certain stretches of Valley freeways seemed quieter than others. ADOT and the Maricopa Association of Governments (MAG) noticed a difference, too. It seemed that areas paved with an asphalt rubber friction course (rubberized asphalt), which MAG funded through the Regional Transportation Plan, were less noisy than freeway surfaces with cement concrete pavement.

It’s been just about six months, but today the residents of Mescal and J-Six Ranch got their bridge back and can finally say goodbye to one lengthy detour!

Over the past several years, ADOT has worked to transform the highly traveled US 93 between Wickenburg to the Hoover Dam from a two-lane highway to an environmentally friendly four-lane, divided highway. A project of this scale will always present its share of issues, but widening the final section – from Kingman to the Mike O’Callaghan - Pat Tillman Memorial Bridge – provided ADOT with an especially unique challenge …