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ADOT I-17 Improvement Project

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Welcome to the I-17 Improvement Project Newsroom

This page provides resources for members of the professional news media. If you have a question or comment about the project and are not a member of the news media, please call ADOT’s bilingual project information line at 855.712.8530 or email We appreciate your cooperation.

Podcast: Let's catch you up on our exciting project improving Interstate 17

Our team continues to make great progress on the project widening I-17 between Anthem and Black Canyon City and creating an innovative system of flex lanes to increase capacity between Black Canyon City and Sunset Point.

We're expecting to open third lanes between Anthem and Black Canyon City near the end of this year, and completion of the flex lanes system is scheduled for 2025.

For the latest episode of our podcast, On the Road With ADOT, we invited our communications lead, Laura Douglas, to provide these and other updates on this major project. Please spend a few minutes listening to visit with our host, Doug Nintzel, about exciting things happening just north of the Valley.

For more information, visit the ADOT Blog

Blasting Completion

I-17 Improvement Project: Blasting Before & After

One Year Construction Anniversary - September 26, 2023

I-17 Improvement Project Aerial Update

I-17 Improvement Project: One Year Progress Photos

Work Zone Safety

  • News media is not permitted in the I-17 Improvement Project active work zone without advance permission from ADOT. An ADOT escort is also required.
  • If you require access to other ADOT right-of-way for news purposes, please contact us in advance; an ADOT escort in the right-of-way may be required.
  • The Federal Highway Administration requires anyone working in highway right-of-way to wear an ANSI Level 2 safety vest.

For assistance at any time, email Please note: This email address is for members of the news media only.

Háganos saber si necesita ayuda de un oficial de información pública que hable español.

I-17 Press Releases

Project At a Glance

Project location:

A 23-mile section of Interstate 17 between Anthem Way and Sunset Point separated into two different sections. Anthem Way to Black Canyon City (widening) and Black Canyon City to Sunset Point (flex lanes).

Number of lanes on I-17 when complete:

Three general purpose lanes in each direction from Anthem Way to Black Canyon City.

Two general purpose lanes in each direction, plus two flex lanes from Black Canyon City to Sunset Point. The flex lanes can alternate to carry north- or southbound traffic depending upon capacity. They also can be used to keep traffic moving if a crash or other emergency occurs.

Number of bridge replacements:


Number of bridges being widened:


Project Delivery Method:

Private Public Partnership (P3); Design-Build-Operate-Maintain (DBOM)

General Engineering Consultant:


Project Developer:

Kiewit-Fann Joint Venture (KFJV)

Project Cost:


Funding Sources:

$175.9 million from federal aid with matching state highway funds; $130 million of state highway funds appropriated by the state legislature in 2019; $90 million from an Infrastructure for Rebuilding America grant; $50 million programmed by the Maricopa Association of Governments for the Maricopa County portion of the project; $76,150,000 appropriated by the state legislature in 2023.

See ADOT's Flickr Gallery


Check out photos from ADOT’s Flickr gallery that you are welcome to use. Please credit the Arizona Department of Transportation.

I-17 February Progress Photos I-17 Flex Lane Update 050823 I-17 Improvements: April 2023 I17 New River Girder Set 032323 I-17 Widening and Flex Lane Corridor_091521 I-17 Widening and Flex Lane Corridor_102121


Check out videos from ADOT that you are welcome to use. Please credit the Arizona Department of Transportation.


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