KINGMAN – The Arizona Department of Transportation has submitted an application for a federal bridge grant that, if awarded, would allocate nearly $73 million toward the construction of the planned West Kingman Traffic Interchange that will provide a free-flowing connection between US 93 and Interstate 40.

If the grant is awarded, those funds would be added to state-matching funds and other federal funds to cover the estimated $160.7 million cost of construction. The grant is funded under the U.S. Department of Transportation’s Bridge Investment Program and would cover the bridge improvement portion of the new interchange.

The West Kingman Traffic Interchange, planned for construction in 2024, is a critical component of the highly traveled route between Phoenix and Las Vegas. The I-40 and US 93 area has regional and national economic significance due to the amount of goods that pass through the area.

The traffic interchange will improve safety, reduce travel times, and improve reliability for people and freight moving between the fast-growing metropolitan areas of Phoenix and Las Vegas by establishing a seamless freeway connection.

US 93 between Wickenburg and Kingman is designated as the future Interstate 11. The West Kingman Traffic Interchange will play a critical role in laying the foundation for this future interstate that would connect Phoenix and Las Vegas. With the grant, ADOT will be able to move funds to address other transportation needs while ensuring the construction of the much-needed West Kingman Traffic Interchange goes forward as planned.

For more information, visit azdot.gov and transportation.gov.

FLAGSTAFF – As the Arizona Department of Transportation makes a final push to complete a pavement project on I-40 between I-17 and Walnut Canyon Road in Flagstaff, drivers should expect alternating lane restrictions and delays while traveling through the area.

Beginning Thursday, July 21, there will be alternating lane restrictions on I-40 throughout the 10-mile project area during daytime hours from 6 a.m. to 6 p.m. Drivers should expect delays of 30 minutes or more.

The lane restriction configurations will change over the next few weeks as crews complete paving along I-40. The lane restrictions are expected to last through mid- August. 

The paving project, which began in the spring of 2021, will create a smoother ride for drivers and fix years of winter weather damage to the road surface. In addition to replacing the pavement, work also includes making repairs to bridge decks along the 10-mile stretch and repairing guardrail as needed.

For more information, visit azdot.gov/I40WalnutCanyonRd.

FLAGSTAFF – The Arizona Department of Transportation has replaced the A-1 Mountain Road bridge in west Flagstaff ahead of schedule thanks to an innovative bridge construction method. The new bridge was opened to traffic Tuesday, June 7.

Crews used an accelerated bridge construction method known as a geosynthetic reinforced soil-integrated bridge system. Utilizing this method benefits drivers with a serious savings in construction time, allowing the project to be completed sooner than traditional methods. The A-1 Mountain Road bridge was demolished and replaced in a little over a month.

Crews will return later this month to put down final striping and roadway markings on the bridge. That process will require ramp restrictions.

ADOT first employed this innovative technique a few years ago when the agency replaced the Meteor City Road bridge over I-40 east of Flagstaff.

The $4.9 million project is located about 5 miles west of the I-17 junction along I-40.

For more information on the project, visit azdot.gov/i40-A1-Mountain.

KINGMAN – The Arizona Department of Transportation will perform pavement repair along a six-mile stretch of Interstate 40 in Kingman beginning Sunday, May 15.

East- and westbound I-40 will be narrowed to one lane in each direction from 7 p.m. to 6 a.m. nightly from Sunday, May 15, to Saturday, May 21. The work will take place from Andy Devine Avenue to west of the Kingman city limits (mileposts 46-52).

Crews will mill down worn asphalt in certain areas along I-40 and repave those areas with new pavement creating a smoother ride for drivers.

Drivers should be prepared to slow down and use caution during construction. 

Since 2016, ADOT has replaced pavement on more than 90 miles of I-40 and repaired, upgraded or replaced 47 bridges along the corridor.

FLAGSTAFF – The Arizona Department of Transportation will demolish and replace the A-1 Mountain Road overpass along I-40 in Flagstaff in 40 days thanks to an innovative bridge construction method.

Crews will use an accelerated bridge construction method known as a geosynthetic reinforced soil-integrated bridge system. That means crews will create bridge abutments by putting in alternating layers of granular fill reinforced with synthetic material.

In order to replace the bridge, A-1 Mountain Road will be closed to all traffic over I-40 starting Monday, May 2.

During the 40-day closure, drivers will need to use the established detour route. Eastbound I-40 drivers wanting to exit A-1 Mountain Road will be detoured to Exit 191 to turn around and travel west to access A-1 Mountain Road. Drivers on A-1 Mountain Road who want to travel eastbound on I-40 will first travel westbound on I-40  and exit Hughes Avenue (Exit 185) to turn around and travel eastbound.

I-40 will also close overnight at the location of the bridge 16 times in each direction between 7 p.m. and 7 a.m. during the 40-day closure so crews can demolish the current bridge and construct the framework for the new bridge. Traffic will use the off- and on-ramps to detour around the closure.

Utilizing this method benefits drivers with a serious savings in construction time, allowing the project to be completed sooner than traditional methods. In addition, a new bridge deck will be constructed using a polyester polymer concrete that can be placed and cured in a matter of days rather than weeks.

The closure is expected to be lifted by Friday, June 10.

ADOT first employed this innovative technique a few years ago when the agency replaced the Meteor City Road bridge over I-40 east of Flagstaff.

The $4.9 million project, located about 5 miles west of the I-17 junction along I-40, is anticipated to be completed by this fall.

For more information on the project, visit azdot.gov/i40-A1-Mountain.

KINGMAN – As construction season in northern Arizona resumes, three bridges in the northwestern part of Arizona will be rehabilitated starting this year.

Along Interstate 40, ADOT will reconstruct the bridge decks on the bridge at Exit 123 into the east side of Seligman. The project is needed to replace the damaged elements of the bridges and to perform other upgrades to increase the lifespan of the bridges.

Crews will be replacing the bridge decks of the two bridges as well as the approaches, and any guardrails and curbs as needed. During the project, traffic will be shifted over to share one side of I-40 with one lane in each direction through the work zone. Access to all adjacent properties will be maintained during daytime hours.

Also along I-40, the overpass for Anvil Rock Road, located about 11 miles west of Seligman, will receive a new bridge deck. Work will occur during the day from 6 a.m. to 6 p.m. Sundays through Thursdays. Drivers along I-40 can expect the highway to be intermittently reduced to one lane as work requires. There will also be a full closure of I-40 when demolition of the bridge deck takes place. Traffic will be rerouted around the closure using the off- and on-ramps at the Anvil Rock Road exit. 

On US 93 south of I-40, ADOT will begin rehabilitation of the Kabba Wash Bridge at milepost 97 north of Wikieup on Monday, April 11. This project will include widening the existing northbound bridge, replacing the existing bridge deck and approach slabs, guardrail work, and installing new pavement markings. Northbound US 93 will be reduced to one lane in the work zone for the duration of the project.

Construction for the bridges at Exit 123 and Kabba Wash is anticipated to be completed in late 2023. The Anvil Rock Road overpass is anticipated to be completed by this fall.

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

HOLBROOK – The Hermosa Drive Bridge over Interstate 40 in Holbrook will be rehabilitated beginning this spring by the Arizona Department of Transportation, thereby extending the life of the bridge for drivers.

The bridge will receive a new bridge deck, guardrails and barriers. The roadway approaches to the bridge will be improved as well. Drivers can expect daytime and nighttime restrictions due to the construction work.  In addition, there will be periodic overnight closures of I-40 during the project. 

A detour will be in place using State Route 77 (known locally as Navajo Boulevard) when the I-40 closures are in effect. Eastbound drivers will use Exit 286, proceed eastbound on Navajo Boulevard and then re-enter eastbound I-40 at Exit 289. Westbound drivers will use Exit 289, proceed westbound on Navajo Boulevard and then re-enter westbound I-40 at Exit 286.

I-40 will be closed overnight from 9 p.m. to 5 a.m. on Tuesday, April 5. Additional nightly closures in April include April 7-9; April 11-15; and April 18-20.

Additional overnight closures of I-40 are planned throughout the summer. Closures are subject to change due to weather or other unforeseen circumstances.

The project is expected to be completed by this fall.

This bridge project continues ADOT’s commitment to invest in the I-40 corridor as a vital highway for commerce. From 2016 to 2020, ADOT invested more than $275 million in the I-40 corridor.

For more information on this project, visit azdot.gov/projects and click on the Northeast District.