FLAGSTAFF – The Arizona Department of Transportation is starting a project to replace pavement on 29 miles of Interstate 17 south of Flagstaff in order to create a smooth driving surface and repair damage from winter weather.

The work will stretch from the I-40 interchange south to the Coconino County line at milepost 312. Crews will mill down the worn, rough pavement and replace it with new pavement. 

Drivers should expect southbound I-17 to be restricted to one lane around-the-clock in a couple of locations between Kachina Boulevard and south of Munds Park as work begins. Drivers should be prepared to slow down and proceed through the work zones with caution.

Crews will move to different locations as work is completed along the corridor. 

In addition to the travel lanes and shoulders, several on- and off-ramps and nine bridges within the project area will be repaved. The $34.9 million project is expected to last until summer of 2024 with stoppage in work during the winter.

ADOT completed pavement replacement work on the same stretch of I-17 in the northbound direction in the fall of 2019. 

For more information, visit azdot.gov/projects and click on the Northcentral District.

PHOENIX – With construction set to begin later this year on Interstate 17 between Anthem Way and Sunset Point, the Arizona Department of Transportation is hosting its second public meeting to share information and answer questions. 

ADOT encourages everyone to participate to find out what to expect while work is underway through 2025, and how the improvements will help reduce congestion and enhance safety and traffic flow along this busy 23-mile stretch of highway north of Phoenix. 

Join the project team for an in-person open house at Canon Elementary School, 34630 School Loop Road in Black Canyon City, on Tuesday, April 26. The open house begins at 5:30 p.m., followed by a presentation at 6 p.m. The open house will continue from 6:30 to 7:30 p.m.

For those who can’t make it to the public meeting, there is an online option to find out about the project and ask questions. The project’s virtual open house can be accessed via improvingi17.com/openhouse and has been live since March 31. This standing open house provides the same information as the March 31 virtual public meeting and the in-person meeting on April 26, but can be viewed at your convenience. It also provides opportunities to ask questions or submit comments. This option will be available through April 26. To date, more than 1,200 people have utilized the online open house.

Construction on the highly anticipated I-17 Improvement Project: Anthem Way to Sunset Point will begin later this year and is expected to take approximately three years to complete. Pre-construction work is currently underway. Once the major work officially begins, drivers can expect the entire 23 miles to be under construction at once and should plan their trips accordingly.

Once complete, this project will help alleviate congestion and improve safety and traffic flow north of the metro Phoenix region. The 23 miles of improvements include 15 miles of roadway widening from Anthem Way to Black Canyon City, two bridge replacements, one bridge deck replacement, 10 bridge widenings, and the installation of an approximately eight-mile flex lane system from Black Canyon City to Sunset Point. Flex lanes are a new feature for Arizona’s highway system and are proven technology to help reduce congestion on I-17 during peak travel times and allow for traffic movement during emergency situations.

The I-17 flex lanes will operate as a separate, two-lane roadway carrying one direction of traffic at a time depending on the greatest need along the steep, winding 8 miles between Black Canyon City and Sunset Point. For example, the flex lanes will be able to carry heavy northbound traffic on a Friday or heavy southbound traffic on a Sunday. Similarly, ADOT will be able to open the flex lanes to accommodate traffic any time if a crash or other incident causes long delays. The flex lanes will be next to, but physically separated from southbound I-17 using concrete barriers. Access to the flex-lane entrances will be controlled by gates.  

For more information about the I-17 public meetings or this project, visit improvingi17.com, call 877.476.1717 or email [email protected].

With construction set to begin later this year on Interstate 17 between Anthem Way and Sunset Point, the Arizona Department of Transportation is hosting two public meetings to share information and answer questions. 

ADOT encourages everyone to participate to find out what to expect while work is underway through 2025, and how the improvements will help reduce congestion and enhance safety and traffic flow along this busy 23-mile stretch of highway north of Phoenix. 

Anyone can attend one or both meetings to learn more, provide input and ask questions. 

PARTICIPATE VIRTUALLY: A virtual public meeting is scheduled from 6 to 7:30 p.m. Thursday, March 31. ADOT’s project team will provide an overview and answer questions from meeting participants. To join the meeting, visit http://www.improvingi17.com/ at 5:45 p.m. on March 31 and follow the link to the WebEx presentation.

PARTICIPATE IN PERSON: Join the project team for an open house at Canon Elementary School, 34630 School Loop Road in Black Canyon City, on Tuesday, April 26. The open house begins at 5:30 p.m., followed by a presentation at 6 p.m. The open house will continue from 6:30 to 7:30 p.m.

For those who can’t make it to either meeting, there is a third option to find out about the project and ask questions. Beginning March 31 and continuing through April 26, anyone can walk through a virtual open house at http://www.improvingi17.com/. This standing open house via the project website will provide the same information as the virtual and in-person public meetings, but can be viewed at your convenience. There will still be opportunities to ask questions or make comments through this virtual open house.

Construction on the highly anticipated I-17 Improvement Project: Anthem Way to Sunset Point will begin later this year and is expected to take approximately three years to complete. Pre-construction work is currently underway. Once the major work officially begins, drivers can expect the entire 23 miles to be under construction at once and should plan their trips accordingly.

Once complete, this project will help alleviate congestion and improve safety and traffic flow north of the metro Phoenix region. The 23 miles of improvements include 15 miles of roadway widening from Anthem Way to Black Canyon City, two bridge replacements, one bridge deck replacement, 10 bridge widenings, and the installation of an approximately eight-mile flex lane system from Black Canyon City to Sunset Point. Flex lanes are a new feature for Arizona’s highway system and are proven technology to help reduce congestion on I-17 during peak travel times and allow for traffic movement during emergency situations.

The I-17 flex lanes will operate as a separate, two-lane roadway carrying one direction of traffic at a time depending on the greatest need along the steep, winding 8 miles between Black Canyon City and Sunset Point. For example, the flex lanes will be able to carry heavy northbound traffic on a Friday or heavy southbound traffic on a Sunday. Similarly, ADOT will be able to open the flex lanes to accommodate traffic any time if a crash or other incident causes long delays. The flex lanes will be next to, but physically separated from southbound I-17 using concrete barriers. Access to the flex-lane entrances will be controlled by gates.  

For more information about the I-17 public meetings or this project, visit http://www.improvingi17.com/, call 877.476.1717 or email [email protected].

What takes 11 hours to empty, weighs just over 2,000 tons and can cover a football field half a foot deep? It's the 1,000 cubic yards of concrete that was poured over the weekend in conjunction with the Arizona Department of Transportation's Interstate 10 Broadway Curve Improvement Project.

On Saturday, I-10 Broadway Curve Improvement Project crews completed a critical step for the foundation that will support the new Broadway Road bridge that is being constructed over I-10. They poured 1,000 cubic yards of concrete to create what is called a “bridge footing.” This footing is a large concrete slab that will play an important role in the support and distribution of weight for the new bridge. 

The new bridge over I-10 is one of several bridges being replaced or widened as part of the I-10 Broadway Curve Improvement Project. Crews will take down the existing Broadway Road bridge after the new one is completed later on in the project. 

For more information on the I-10 Broadway Curve Improvement Project, visit https://i10broadwaycurve.com/  

To see video of the concrete pour: https://vimeo.com/669560984

The Arizona Department of Transportation has signed an agreement with the developer team that will design, build, operate and maintain the Interstate 17 Improvement Project from Anthem Way to Sunset Point. 

The total project cost is $445,940,000, which includes the construction cost by the developer team, along with ADOT’s cost to administer the project. 

Construction is scheduled to begin in 2022 and is expected to take approximately three years. Now that the contract is signed, work can begin on this highly anticipated project that will include 15 miles of widening from Anthem Way to Black Canyon City and eight miles of flex lanes from Black Canyon City to Sunset Point.

The developer team is Kiewit-Fann Joint Venture. Key members of the team include Kiewit Infrastructure West Co.; Fann Contracting Inc.; Kiewit Engineering Group Inc.; DBI Services LLC; CONSOR Engineers LLC dba Apex Design; T.Y. Lin International; Lee Engineering; Terracon Consultants Inc.; Wheat Design Group, Inc.; Y2K Engineering; and Pinyon Environmental Inc.

The KFJV developer team was selected over two other finalists after an extensive review by ADOT with oversight from representatives from the Federal Highway Administration and the Maricopa Association of Governments. All three developer team finalists were encouraged to use innovation and develop alternative concepts to reduce project time and impacts to the traveling public and community while construction is underway.

Interstate 17 between Anthem Way and Sunset Point is a major stretch of highway that sees more than one million travelers every year. Because much of that travel and congestion occur on weekends, ADOT and the KFJV developer team will limit most of the lane closures to weeknights from 7 p.m. to 6 a.m. All motorists still need to be cautious and alert in the construction zone, which will be active seven days a week. 

Once complete, the I-17 Improvement Project will help alleviate congestion and improve safety and traffic flow north of the metro-Phoenix region. This project will improve 23 miles of I-17, including 15 miles of roadway widening, two bridge replacements, one bridge deck replacement, 10 bridge widenings, and the installation of an eight-mile flex lane system—a new feature  for Arizona’s highway system. Flex lanes are proven technology to help reduce congestion on I-17 during peak travel times and allow for traffic movement during emergency situations. 

The I-17 flex lanes will operate as a separate, two-lane roadway carrying one direction of traffic at a time depending on the greatest need along the steep, winding eight miles between Black Canyon City and Sunset Point. For example, the flex lanes will be able to carry heavy northbound traffic on a Friday or heavy southbound traffic on a Sunday. Similarly, ADOT will be able to open the flex lanes to accommodate traffic any time if a crash or other incident causes long delays. The flex lanes will be next to, but physically separated from southbound I-17 using concrete barriers. Access to the flex-lane entrances will be controlled by gates.   

In February, Governor Ducey announced $40 million in funding for the I-17 Improvement Project from higher-than-anticipated revenue amid Arizona’s strong economic recovery and federal COVID-relief funds. Additional project funding sources include:

$130 million of state highway funds appropriated by the state legislature in 2019

$90 million from an Infrastructure for Rebuilding America (INFRA) grant

$50 million programmed by the Maricopa Association of Governments (MAG) for the Maricopa County portion of this project

$135.9 million from federal aid with matching state highway funds. That includes $83.6 million approved by the Arizona State Transportation Board on Oct. 15, clearing the way for construction to begin in 2022. 

For more information about the I-17 Improvement Project, visit azdot.gov/i17-anthem-way-to-sunset-point. 

CAMP VERDE – An Arizona Department of Transportation project to improve the Verde River bridges on I-17 near Camp Verde is underway to add capping to the bridge footings in the river bed to prevent erosion, protecting vital infrastructure on the primary route between Phoenix and Flagstaff. 

The work utilizes a method to channel river flow through the work zone by constructing a temporary “earthen bypass channel” to contain the river flow so crews can safely work outside of the area placing concrete caps over the footings of the Verde River bridges.

The channel is 60 feet wide and designed to handle the normal river flow of the Verde River. The channeling of the Verde River will occur in two phases as crews work on the 12 total bridge footings.

In order to protect wildlife, ADOT has teamed up with biologists from Northern Arizona University who are onsite anytime crews are working. One biologist recently found a northern Mexican gartersnake, an endangered species, and safely relocated the reptile. In addition all project personnel onsite had to take a training class on the endangered species in the area.

There will be no impacts to traffic on I-17 while work is occurring. River users, however, will be required to exit the river and go around the project site.

The project is anticipated to be completed by spring 2022.

For more information, visit azdot.gov/projects and click on the Northcentral District.

FLAGSTAFF – The Arizona Department of Transportation is starting a project to bring broadband internet access to more Arizonans by laying fiber-optic conduit along a 46-mile stretch of I-17 from Flagstaff to Sedona.

The project begins today as crews start laying fiber-optic conduit along southbound I-17 from milepost 340 in Flagstaff to milepost 296, just south of the junction with SR 179. During the project, drivers can expect right-lane restrictions along southbound I-17 where crews are working. Crews plan to install the fiber-optic conduit in 3-mile stretches at a time. 

No restrictions will be in place on weekends and holidays. The project is anticipated to be completed by summer of 2022.

In the state’s broadband initiative, championed by Governor Doug Ducey with legislation sponsored by Rep. Regina Cobb, ADOT is partnering with the Arizona Commerce Authority to create more affordable opportunities to provide more rural communities in Arizona with high-speed internet service. ADOT’s role will be to provide access to its right-of-way along the four main interstates in Arizona to place fiber-optic conduit for rural internet providers. 

In addition to the benefits to rural broadband connectivity, ADOT plans to use the fiber to provide “smart highway” technology, such as overhead message boards, traffic cameras, weather stations and wrong-way driving detection technology. The infrastructure also will help lay the groundwork for emerging technology like connected and automated vehicles. 

ADOT already has fiber-optic conduit along freeways in the Phoenix and Tucson areas, as well as a stretch of Interstate 10 near Eloy for the dust detection and warning system. 

For more information on the project, visit azdot.gov/I-17ITSInfrastructure.