KINGMAN – Motorists on westbound Interstate 40 in Kingman should plan ahead for overnight restrictions and full closures of up to 30 minutes the nights of March 10, 13, 17 and 20.

The restrictions are needed while crews put bridge girders in place as part of the Arizona Department of Transportation’s project to construct a freeway-to-freeway interchange between I-40 and US 93.

The restrictions and closures are scheduled between 8 p.m. and 5 a.m. on I-40 at White Cliffs Road. During those hours, westbound I-40 will be narrowed to a single lane from just west of Stockton Hill Road to east of White Cliffs Road. 

Drivers should expect intermittent closures of up to 30 minutes during those overnight hours, at which point traffic will be allowed to proceed through the work zone. Between 10 p.m. and 5:30 a.m., flaggers will stop and direct traffic through the work zone.
For more information on the Kingman interchange project and to subscribe for updates, please visit azdot.gov/WestKingmanTI.

FLAGSTAFF – The Arizona Department of Transportation has begun a project helping to bring broadband internet access to more of northern Arizona by laying 201 miles of fiber-optic conduit along Interstate 40 between Flagstaff and California. 

This will add to fiber-optic conduit laid along Interstate 17 between Phoenix and Flagstaff and I-19 from Tucson to Nogales. This historic effort in underserved and unserved areas is possible because of a state law that allows private broadband providers to install, operate and maintain telecommunications equipment within ADOT’s right of way using the conduit.

“This initiative to expand broadband internet access will connect residents with educational opportunities, telemedicine and much more,” ADOT Director Jennifer Toth said. “Expanding to include I-40 across northwestern Arizona helps advance Governor Hobbs' vision of a thriving Arizona for everyone by helping make broadband widely available, reliable and affordable for all.”

As with other installations, the fiber-optic conduit will be available for lease by internet service providers looking to expand broadband internet access. Last year, ADOT, in partnership with Governor Katie Hobbs and the Arizona Commerce Authority, established a public-private partnership with Nebraska-based eX2 Technology to manage what is referred to as middle-fiber-optic infrastructure. 

Funding to advance broadband availability includes more than $1 billion to implement the federal Broadband Equity Access and Deployment (BEAD) Program and Digital Equity Program. Representing the largest broadband investments in state history, the programs are overseen by the State Broadband Office, which is housed within the Arizona Commerce Authority, with a goal of achieving universal broadband access for all Arizonans.

“Arizona's middle-mile conduit expansion is central to achieving 100% broadband access for all Arizonans, and we're excited for this latest milestone,” said Arizona Commerce Authority President and CEO Sandra Watson. “We're grateful to Governor Hobbs, the Arizona Department of Transportation, and all our partners working together on this historic effort to connect all of Arizona.”

In addition to the benefits to rural broadband connectivity, the installation plans to use fiber-optic conduit to provide intelligent transportation systems technology, such as overhead message boards, traffic cameras, weather stations and wrong-way driving detection. The infrastructure also will help lay the groundwork for emerging technologies like connected and automated vehicles.

For motorists, the fiber-optic conduit installation will require intermittent shoulder and lane restrictions on I-40 between California and Flagstaff. Work will start just south of Kingman at milepost 44 and move west about one mile a day, with lane restrictions from 6 a.m. to 5 p.m. daily. Construction is scheduled to be completed in summer 2026. For more information, visit azdot.gov/projects and select Northcentral to find the I-40 Broadband: AZ-CA Stateline to Flagstaff project webpage.

To learn more about ADOT’s broadband efforts, including a map showing fiber-optic conduit installed along state highways, please visit azdot.gov/broadband. To learn more about broadband expansion efforts from the State Broadband Office, please visit azcommerce.com/broadband.

KINGMAN – A project to construct a free-flowing interchange between Interstate 40 and US 93 is quickly transforming the landscape along I-40 in this northwest Arizona community, with crews clearing land for new travel lanes, removing sound walls and preparing the foundations for new bridges.

This progress comes six months into the Arizona Department of Transportation’s $106 million project to eliminate delays that can occur for passenger and truck traffic on the main route between Las Vegas and Arizona. Instead of traffic stopping for a traffic signal on Beale Street at I-40, a mile of new ramps will allow traffic to flow freely between I-40 and US 93.

Some of the most visible progress on the I-40/US 93 interchange project is along a golf course west of Stockton Hill Road, where crews have leveled a slope to allow for new travel lanes. Further west, crews have drilled eight shafts needed to widen the existing Clack Canyon Road bridges. And the site of a new Beale Street overpass has been excavated, with a concrete foundation now in place.

As construction continues, the public can expect daytime and nighttime work, rock crushing operations in the work area and short closures of US 93 for rock blasting. ADOT is maintaining two lanes of travel in each direction during peak travel times, with lane restrictions limited to off-peak hours. Drivers are able to continue exiting both US 93 and I-40 at Beale Street to access businesses, Route 66 and downtown Kingman.

Construction is expected to continue into 2027, when the interchange will open with 6 miles of widened or newly constructed roadway. The project includes five new bridges, two bridge widenings, four bridge rehabilitations and two miles of sound walls. 

The project is creating a mile of new highway carrying traffic northwest of the existing interchange at I-40 and Beale Street. Other features include:

• Widening more than a mile of I-40 in both directions between the new interchange and Stockton Hill Road

• Adding a merge lane on US 93 northbound

• Widening and/or rehabilitating four bridges on I-40

• Building sound walls along a portion of I-40 to the west of Stockton Hill Road

• Constructing drainage features

The interchange is designed to handle projected traffic growth for the next 25 years. 

For more information on the Kingman interchange project and to subscribe for updates, please visit azdot.gov/WestKingmanTI.The webpage includes a flyover video simulation of what the interchange will look like.

PHOENIX – A $27.5 million federal grant will advance the Arizona Department of Transportation’s plans to upgrade two Interstate 40 traffic interchanges providing vital connections with the Navajo Nation capital of Window Rock and other northeastern Arizona locations. 

The award through the Federal Highway Administration’s Bridge Investment Program will help ADOT replace four bridges that currently make up the interchanges at Navajo Nation Route 12 (Window Rock) at milepost 357 and Grant Road (Lupton) at milepost 359. Those bridges don’t meet current design standards.

The project, with a current estimated cost of $48.6 million, will comprehensively upgrade the two interchanges by improving traffic flow on the crossroads, enhancing pedestrian safety, removing the threat of seasonal flooding and raising vertical clearance. 

“Upgrading these interchanges that are so critical to those living in and traveling through the Navajo Nation will help safely connect Arizonans and empower our state’s economy,” ADOT Director Jennifer Toth said. 

ADOT’s grant proposal received support from state and federal elected leaders, local governments and Navajo Nation officials.

“Together, we will elevate the vertical connections within our landscapes, embodying the unwavering spirit of the Navajo Nation – a spirit rooted in connectivity, progress and a shared future,” the Navajo Department of Transportation said as part of a statement on the award.

The grant requires a $6.8 million state match, and other funding will come from ADOT’s Bridge Subprogram. The project is tentatively scheduled for fiscal 2027.

KINGMAN – The Arizona Department of Transportation will begin work in early December along Interstate 40 to construct a new interchange that will in turn connect with a new roadway serving the east Kingman area.

The Rancho Santa Fe Parkway interchange will be about 4 miles east of the existing historic Route 66 interchange (Andy Devine Avenue) and provide access to the growing area surrounding the Kingman Airport.

The $44 million project is expected to take 1.5 years and is being undertaken in partnership with the city of Kingman, which will separately construct the new Rancho Santa Fe Parkway north of I-40 connecting to the Kingman Airport. 

The project will include:

• Constructing two new bridges on I-40 at the new Rancho Sante Fe Parkway interchange
• Widening the existing bridges over Rattlesnake Wash
• Installing new sidewalks and curb and gutter
• Constructing pipe culverts, concrete box culverts and storm drainage
• Installing new traffic signals and lighting
• Installing new fencing, guardrail, signage and pavement markings

During construction, motorists should expect construction to occur days and nights Monday through Thursdays, with work only occurring during daytime hours on Fridays. While ADOT will maintain two lanes of travel in each direction on I-40 throughout the project, drivers should anticipate delays of up to 20 minutes during certain activities.

To sign up for project-related traffic alerts and updates sent directly to your email inbox, please visit  azdot.gov/I-40RanchoSantaFePkwayTI

PHOENIX – Work is scheduled to get underway Thursday, July 11, on a free-flowing interchange connecting US 93 and Interstate 40 in Kingman.

The $106 million project is planned to eliminate delays that can occur for passenger and truck traffic on the main route between Las Vegas and Arizona. While traffic now must stop at a traffic signal where Beale Street intersects with I-40, a system-to-system interchange will feature ramps that allow traffic to flow freely.

Those new ramps will create one new mile of highway between I-40 and US 93, running northwest of the existing interchange at I-40 and Beale Street. Other project features include:

• Widening more than one mile of I-40 in both directions between the new interchange and Stockton Hill Road
• Adding a merge lane on US 93 northbound
• Widening and/or rehabilitating four bridges on I-40
• Building sound walls along a portion of I-40 to the west of Stockton Hill Road
• Constructing drainage features

For more information on the Kingman interchange project and to subscribe for updates, please visit azdot.gov/WestKingmanTI. Visitors to the webpage can also watch a flyover video simulation of what the project will look like upon completion.

This project is among several underway or planned to improve US 93, which travels 200 miles between Wickenburg and the Nevada line at Hoover Dam. In addition to constructing the Kingman interchange, ADOT's long-term vision calls for a four-lane divided highway through the entire 200 miles between Wickenburg and Nevada. Since 1999, ADOT has completed 19 projects to modernize US 93 between Wickenburg and I-40. 

A current US 93 project near Wickenburg is now more than halfway done as work continues to transform a 5-mile section of two-lane roadway into a four-lane divided highway. Work on the Wickenburg-area project is expected to continue through this year, with lane restrictions limited to overnight hours to minimize traffic impacts. More information is available at azdot.gov/US93Wickenburg. 

ADOT’s Five-Year Transportation Facilities Construction Program for 2025-2029 has these additional projects scheduled to convert segments US 93 to four-lane divided highway: mileposts 106-109.5. in the Cane Springs area; mileposts 190.5-193.5 in the Vista Royale area northwest of Wickenburg; and mileposts 161.7-166.2 in the area of Big Jim Wash.

For more information on other current and planned improvement projects in northwestern Arizona, please visit the Northwest Regional Improvements US 93 and I-40 webpage.   

HOLBROOK – The Arizona Department of Transportation will begin a pavement and improvement project Monday, April 22, along Interstate 40 between Holbrook and the community of Chambers in northeastern Arizona. 

Crews will begin work on the Dead River Bridge (milepost 316) on April 22 to repair the bridge deck and replace the barrier wall. During the project, the eastbound Dead River Bridge will be closed and I-40 traffic will share the westbound bridge with one lane in each direction. Drivers should budget extra time as a result.

Drivers can also expect lane restrictions in both directions along I-40 between Pinta and McCarrell roads (milepost 319-331) when paving work begins on a pavement improvement project in May or June. 

Crews also will be working to replace the pavement and restripe 12 miles of I-40 in the area.

Drivers should allow extra travel time and be prepared to slow down, stay alert and merge safely when approaching and traveling through the work zones. 

For more information, please visit the project webpage.

Work on these projects is scheduled to be completed by fall 2025.

KINGMAN – The State Transportation Board has awarded a $106 million construction project to build a free-flowing traffic interchange for Interstate 40 and US 93 in Kingman.

With the contract awarded to Fisher Sand & Gravel Co. during the board’s meeting on Friday, March 15, construction is expected to begin this summer and take two and a half years.

The interchange in west Kingman is designed to reduce congestion on the highly traveled route between Phoenix and Las Vegas while improving safety, travel times and reliability. While vehicles now must stop at a traffic signal where Beale Street intersects with I-40, the system-to-system interchange will feature ramps that allow traffic to flow freely.

The interchange is designed to handle projected traffic growth for the next 25 years. 

For more information, please visit azdot.gov/WestKingmanTI.

PHOENIX – Both directions of Interstate 40 will be reduced to one lane between Seligman and Ash Fork during daylight hours Monday to Thursday starting Thursday, Aug. 3, and ending Thursday, Aug. 17, as an Arizona Department of Transportation project removes and replaces surface pavement. 

The lane restrictions, a 55 mph speed limit and a width restriction of 14.5 feet will be in place from 5 a.m. to 8 p.m. Monday through Thursday between mileposts 123 and 146. 

ADOT has committed $90.5 million to pavement repair projects, most of them in northern Arizona, after the record-setting winter. Governor Hobbs and the state Legislature also have allocated $54 million for additional pavement improvement projects in rural Arizona. A website at azdot.gov/PavingRepairs details these Statewide Critical Pavement Repair Projects.

Meanwhile, another ADOT project will reduce westbound I-40 to one lane from milepost 108 to milepost 86, between Seligman and US 93, from 4 a.m. to 4 p.m. starting Tuesday, Aug. 8, and ending Thursday, Aug. 11. Crews will be applying a sealant to extend the life of the pavement. The speed limit will be reduced to 55 mph in the work zone and there will be a width restriction of 14 feet. 

Motorists should slow down in work zones and give workers plenty of space.