Interchange

All in a night’s work: Placing bridge girders along I-40 in Kingman

All in a night’s work: Placing bridge girders along I-40 in Kingman

All in a night’s work: Placing bridge girders along I-40 in Kingman

All in a night’s work: Placing bridge girders along I-40 in Kingman

By Garin Groff / ADOT Communications
March 17, 2025
Setting girder for I-40 bridge

Progress along the Interstate 40/US 93 interchange project in Kingman sometimes can be apparent at the end of each day’s work, but in some cases, it’s quite visible even at night.

That was certainly true last week, with crews working overnight to hoist a girder into place for a new bridge at White Cliffs Road over I-40.

Drivers who pass through the area will see more of the same work this week, with full westbound closures scheduled for up to 30 minutes the nights of Monday, March 17, and Thursday, March 20. Motorists can find more traffic restriction details here

The current girder placement represents only a small portion of bridge work as part of the larger effort to construct a freeway-to-freeway interchange between I-40 and US 93. The overall project will include five new bridges, two bridge widenings and four bridge rehabilitations.

For more information on the Kingman interchange project and to subscribe for updates, please visit azdot.gov/WestKingmanTI.

Westbound Loop 202 on-ramp at Val Vista Drive closes Friday

Westbound Loop 202 on-ramp at Val Vista Drive closes Friday

I-17 101 traffic interchange

Westbound Loop 202 on-ramp at Val Vista Drive closes Friday

Westbound Loop 202 on-ramp at Val Vista Drive closes Friday

March 12, 2025

Closure will last about 60 days as part of Santan Freeway widening work

PHOENIX – The westbound Loop 202 (Santan Freeway) on-ramp at Val Vista Drive in the Southeast Valley is scheduled to close for approximately 60 days starting at 10 p.m. Friday, March 14. The closure will allow crews to reconstruct the ramp as part of the Loop 202 widening project in Chandler and Gilbert.

Drivers should consider using the westbound Loop 202 on-ramps at Santan Village Parkway or Lindsay Road while the entrance ramp at Val Vista Drive is closed.

The $200 million Loop 202 Improvement Project is adding lanes and interchange improvements along 8 miles of Loop 202 between Loop 101 (Price Freeway) and Val Vista Drive in Chandler and Gilbert. The project was featured in a recent episode of the On the Road with ADOT podcast, which is available at azdot.gov/podcast or through podcast platforms including Apple Podcasts and Spotify

This project is funded in part by Proposition 400, a dedicated half-cent sales tax that Maricopa County voters approved in 2004. The project is scheduled under the Regional Transportation Plan managed by the Maricopa Association of Governments, the metropolitan planning organization for the Greater Phoenix region.

 

I-40/US 93 interchange starts taking shape in Kingman

I-40/US 93 interchange starts taking shape in Kingman

I-17 101 traffic interchange

I-40/US 93 interchange starts taking shape in Kingman

I-40/US 93 interchange starts taking shape in Kingman

December 12, 2024

Earthwork, bridge foundations underway for new free-flowing traffic connection

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.

Loop 303 interchanges project named finalist for national honors

Loop 303 interchanges project named finalist for national honors

I-17 101 traffic interchange

Loop 303 interchanges project named finalist for national honors

Loop 303 interchanges project named finalist for national honors

September 6, 2024

America’s Transportation Awards cites community development benefits

PHOENIX – An Arizona Department of Transportation project that constructed Loop 303 interchanges at 43rd and 51st avenues near Interstate 17 has been named a top 12 finalist in the 2024 America’s Transportation Awards competition.  

This designation makes the $70 million Loop 303 project eligible for two different honors: the Grand Prize and the People’s Choice Award. The competition is sponsored by AASHTO, an association representing highway and transportation departments nationwide, as well as AAA and the U.S. Chamber of Commerce.

Through Oct. 29, you can vote once daily for the People’s Choice Award by visiting americastransportationawards.org. The Grand Prize will be decided by an independent panel of transportation experts. Both awards will be presented at AASHTO’s annual meeting in Philadelphia.

ADOT partnered with the Maricopa Association of Governments (MAG), the regional transportation planning agency, and city of Phoenix to accelerate construction of the Loop 303 bridges and ramps to address current and future traffic growth near the Taiwan Semiconductor Manufacturing Co. plant in the north Valley. The interchanges were completed in September 2023, several years sooner than originally planned.

“With a large semiconductor manufacturing facility under construction, these two interchanges are connecting Arizonans and empowering our state’s economy,” ADOT Director Jennifer Toth said. “This collaboration with the Maricopa Association of Governments and city of Phoenix also supports continued development and growth of businesses and services, including health care and housing.”

Earlier this year, the project earned a West Region award in the America’s Transportation Awards “Quality of Life/Community Development, Medium Project” category among state departments of transportation.

Construction of new Loop 303 interchanges at 43rd and 51st avenues was funded through the dedicated Proposition 400 half-cent sales tax approved by Maricopa County voters in 2004. The project is part of the Phoenix area’s Regional Strategic Transportation Infrastructure Investment Plan managed by MAG.

The new interchanges were designed to help manage future transportation needs in the area, support the Phoenix area’s growing semiconductor footprint and its supply chain, and allow for community development, including businesses and services. 

ADOT manages the construction and maintenance of nearly 7,000 miles of state highways, including Phoenix-area freeways. Project information is available at azdot.gov/projects

 

ADOT project adding two Loop 303 interchanges wins regional award

ADOT project adding two Loop 303 interchanges wins regional award

I-17 101 traffic interchange

ADOT project adding two Loop 303 interchanges wins regional award

ADOT project adding two Loop 303 interchanges wins regional award

July 15, 2024

America’s Transportation Awards cites community development benefits

PHOENIX – A recent Arizona Department of Transportation project that constructed Loop 303 interchanges at 43rd and 51st avenues near Interstate 17 is a winner in the 2024 America’s Transportation Awards competition that includes a focus on community development.

The $70 million Loop 303 project earned a West Region award in the “Quality of Life/Community Development, Medium Project” category in the national competition among state departments of transportation. The competition is sponsored by AASHTO, an association representing highway and transportation departments nationwide, as well as AAA and the U.S. Chamber of Commerce.

ADOT partnered with the Maricopa Association of Governments (MAG), the regional transportation planning agency, and city of Phoenix to accelerate construction of the Loop 303 bridges and ramps to address current and future traffic growth near the Taiwan Semiconductor Manufacturing Co. plant in the north Valley. The interchanges were completed in September 2023, several years sooner than originally planned.

“This project is an example of great teamwork and cooperation among partnering organizations,” said ADOT’s Central District Administrator Randy Everett. “It took a lot of hard work by staff at MAG, city of Phoenix, ADOT and the contractor, Fisher Sand and Gravel, to deliver this project on the accelerated schedule.”

The award was presented this week at the annual meeting of WASHTO, which represents departments of transportation in the West.

Construction of new Loop 303 interchanges at 43rd and 51st avenues was funded through the dedicated Proposition 400 half-cent sales tax approved by Maricopa County voters in 2004. The project is part of the Phoenix area’s Regional Strategic Transportation Infrastructure Investment Plan managed by MAG.

The new interchanges were designed to help manage future transportation needs in the area, support the Phoenix area’s growing semiconductor footprint and its supply chain, and allow for community development, including businesses and services. 

ADOT manages the construction and maintenance of nearly 7,000 miles of state highways, including Phoenix-area freeways. Project information is available at azdot.gov/projects

 

Contract awarded for I-40/US 93 interchange project in Kingman

Contract awarded for I-40/US 93 interchange project in Kingman

I-17 101 traffic interchange

Contract awarded for I-40/US 93 interchange project in Kingman

Contract awarded for I-40/US 93 interchange project in Kingman

March 15, 2024

Construction starts this summer on free-flowing connection

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.

Jan. 23 virtual meeting set for I-10/Jackrabbit Trail improvements

Jan. 23 virtual meeting set for I-10/Jackrabbit Trail improvements

I-17 101 traffic interchange

Jan. 23 virtual meeting set for I-10/Jackrabbit Trail improvements

Jan. 23 virtual meeting set for I-10/Jackrabbit Trail improvements

January 10, 2024

ADOT seeks public input about planned interchange reconstruction

PHOENIX – The Arizona Department of Transportation will hold a virtual public meeting on Tuesday, Jan. 23, to provide information, gather comments and answer questions about designs to improve the Interstate 10 interchange at Jackrabbit Trail in the Buckeye area.

ADOT’s virtual meeting is scheduled as follows:

  • 6 to 7:30 p.m., Tuesday, Jan. 23 
  • Participants can register online at azdot.gov/JackrabbitMtg
  • You also can use the call in number: 669.444.9171 Participant ID: 264911
  • English Webinar ID: 951 5167 6868  Spanish Webinar ID: 948 3052 6118

Planned improvements include:

  • Reconstructing the I-10/Jackrabbit Trail interchange and adding traffic signals.
  • Widening on- and off-ramps and providing additional turn lanes.
  • Widening Jackrabbit Trail to three lanes in each direction between McDowell Road and Van Buren Street.

The project to improve traffic flow and safety at the Jackrabbit Trail interchange is not currently funded for construction. This project is included in the Regional Strategic Transportation Infrastructure Investment Plan.

The virtual meeting will include a presentation by ADOT’s project team and an opportunity for questions and comments from participants. Following the meeting the presentation will be available on the project’s study website at azdot.gov/I10Jackrabbit.

Public comments about the draft recommended improvements at I-10 and Jackrabbit Trail can be submitted through Feb. 7 in the following ways: An online survey at azdot.gov/i10JackrabbitComments; by phone at 623.695.7411; by mail at ADOT Community Relations, 1655 West Jackson St., MD 126F, Phoenix, AZ 85007 and by email at [email protected].

 

I-10 Diverging Diamond Interchange open at Watson Road in Buckeye

I-10 Diverging Diamond Interchange open at Watson Road in Buckeye

I-17 101 traffic interchange

I-10 Diverging Diamond Interchange open at Watson Road in Buckeye

I-10 Diverging Diamond Interchange open at Watson Road in Buckeye

April 27, 2023

ADOT opens second such interchange built during I-10 widening

PHOENIX – Drivers in the West Valley can now use the second I-10 Diverging Diamond Interchange (DDI) to be constructed as part of the Arizona Department of Transportation’s ongoing freeway widening project in the Buckeye area.

Crews reopened the I-10 interchange at Watson Road today (Thursday, April 27). The interchange has been reconstructed using the diverging diamond design, which has grown in popularity across the country for safety and traffic flow benefits.

Diverging diamonds allow the two directions of cross-street traffic traveling over or under a freeway to shift to the opposite side of the roadway. The crossing is designed to improve the overall movement of traffic and enhance safety by limiting potential traffic conflict points and allowing direct left turns onto a freeway entrance ramp. Drivers avoid waiting at a traffic signal and don’t cross in front of opposing traffic when making those left turns.

ADOT continues work to widen 8 miles of I-10 from two to three lanes in each direction between Verrado Way and State Route 85. The entire $82 million I-10 improvement project, which was launched in July 2021, is on schedule for completion this summer (2023).

The I-10/Watson Road interchange is the fourth full diverging diamond to be added along the state’s highway system. The nearby DDI at Miller Road opened in Aug. 2022 as part of the I-10 widening project. DDIs also have been constructed at I-17 and Happy Valley Road in north Phoenix and along I-10 at Houghton Road in the Tucson area. Two smaller diverging diamonds also are in use along the Loop 202 South Mountain Freeway in Phoenix.

ADOT works in partnership with the Maricopa Association of Governments on the planning and construction of new freeways, additional lanes and other improvements in the Phoenix area as part of the Regional Transportation Plan for the Maricopa County region. Projects are funded in part by Proposition 400, a dedicated sales tax approved by Maricopa County voters in 2004.

In Tucson, a wider Houghton Road bridge starts coming into view

In Tucson, a wider Houghton Road bridge starts coming into view

In Tucson, a wider Houghton Road bridge starts coming into view

In Tucson, a wider Houghton Road bridge starts coming into view

By Garin Groff / ADOT Communications
January 25, 2021

We’ve been sharing plans for a new and much wider Houghton Road bridge at Interstate 10 in Tucson for some time now, but we know it may have been hard to picture exactly what we’ve been talking about.

No more. Take a look at this aerial shot and you can see the new bridge is wide - even wider than the interstate below.

This photo from early January shows only the girders of the new bridge, as it doesn’t have the concrete deck on top of it yet. Once the deck is completed later this year, it will accommodate six lanes of traffic rather than the two lanes on the existing structure. It’s all part of a $24.4 million interchange replacement project to improve safety and traffic flow in this rapidly growing area southeast of downtown Tucson.

You probably also spotted that the photo shows sections of concrete that will form the new ramps. They’re being built in stages, so drivers should expect periodic changes as traffic is gradually shifted onto larger sections of the new ramps through the rest of 2021. Through the rest of the project, occasional nighttime closures are possible on the ramps as well as on Houghton Road.

However, drivers should expect periodic overnight lane restrictions on I-10, including this week. Each weeknight, crews will reroute one direction of I-10 up and over the entrance and exit ramps. The other direction of I-10 will be reduced to a single lane. Houghton Road will remain open, but expect delays of up to 15 minutes. The work is scheduled from 9:30 p.m. to 5:30 a.m. as crews work on bridge piers and abutments.

Drivers can expect to take advantage of the new bridge and ramps by the end of 2021. 

And a reminder: The Houghton Road interchange will be the first diverging diamond interchange in southern Arizona. To learn more about that kind of interchange or the project as a whole, please visit azdot.gov/i10Houghton.

Gilbert holds groundbreaking for L-202 Lindsay Road interchange

Gilbert holds groundbreaking for L-202 Lindsay Road interchange

Gilbert holds groundbreaking for L-202 Lindsay Road interchange

Gilbert holds groundbreaking for L-202 Lindsay Road interchange

By Doug Nintzel / ADOT Communications
January 8, 2021

As a new year begins, so will a new freeway project in the southeast Valley. Work on the addition of a new Loop 202 Santan Freeway interchange at Lindsay Road, east of Gilbert Road, will start this month.

To mark the start of construction, the town of Gilbert hosted a groundbreaking ceremony in the area near where new on- and off-ramps will be added along the Santan Freeway at Lindsay Road. Gilbert’s event team should be applauded for arranging and carrying out a socially distanced ceremony with precautions taken during the current health situation.

Officials from Gilbert, including Mayor Scott Anderson, spoke about the work of various agencies over time to make the project a reality as well as the benefits that a new interchange will provide for local drivers and the town’s economic development opportunities.

ADOT’s State Engineer Dallas Hammit also took part in the groundbreaking and focused his remarks on how this project is an example of partnering and cooperation between local, regional, state and federal agencies.

Over approximately the next year, ADOT will now manage a $21.7 million project to add the Lindsay Road interchange. Completion is anticipated in early 2022. Other improvements include the widening of the westbound Loop 202 off-ramp at Gilbert Road and eastbound off-ramp at Val Vista Drive and construction of a new westbound frontage road between Lindsay and Gilbert roads.

Gilbert will complete local street improvements in the area. Both ADOT and Gilbert will provide project updates, including traffic restriction reports, as the construction moves forward. Minimal restrictions are expected along Loop 202 during the course of the project since much of the work will take place away from the freeway’s lanes. We urge drivers to use caution and to always watch for workers and equipment in freeway or local street work zones.