Broadway Road in Tempe to close in both directions nightly (April 19-22) between 48th and 52nd streets 

PHOENIX – Motorists who travel on Broadway Road between 48th and 52nd Streets at night, should be prepared to take detours beginning Tuesday, April 19, through Friday, April 22. Construction crews with the Interstate 10 Broadway Curve Improvement Project will close Broadway Road in both directions for bridge work nightly from 8 p.m. to 4 a.m. The westbound I-10 on-ramp and the eastbound off- and on-ramp at Broadway Road will also be closed.

Drivers on Broadway Road who need to access westbound Broadway Road should travel north on Priest Drive to University Drive, head west on University Drive to State Route 143 and travel south on SR 143 to access Broadway Road west of the closure. Drivers on westbound I-10 who need to access westbound Broadway Road should exit at 40th Street and use southbound 40th Street to access Broadway Road west of the closure.

Drivers on Broadway Road who need to access eastbound Broadway Road should travel south on 48th Street to Southern Avenue and travel east to northbound Priest Drive to access Broadway Road east of the closure. Drivers on eastbound I-10 who need to access eastbound Broadway Road should exit at Baseline Road and use eastbound Baseline Road to northbound Priest Drive to access Broadway Road east of the closure.

ADOT encourages travelers to download the project’s free mobile app, The Curve, to receive real-time traffic information and updates. 

The I-10 Broadway Curve Improvement Project is identified in the Maricopa Association of Governments’ Regional Transportation Plan, funded by a half-cent sales tax approved by Maricopa County voters in 2004 through Proposition 400. MAG identified the need for this project to reduce travel times on I-10 during peak hours; improve airport access; support ridesharing and transit; and prepare the region for future growth projections. Learn more about the major improvements here. 

PHOENIX – The Arizona Department of Transportation has signed an agreement with the developer team that will design and build the Interstate 10 Broadway Curve Improvement Project, the first major urban freeway reconstruction effort in the Valley.

ADOT finalized the $615,600,950 contract with the developer on Tuesday. Construction is scheduled to begin in mid to late 2021 and last up to four years.

The developer -- a joint venture of Pulice Construction, FNF Construction and Flatiron Constructors, with T.Y. Lin International as the lead designer -- was selected over two other finalists after an extensive review by ADOT, the cities of Phoenix and Tempe and the Maricopa Association of Governments. The 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.

The project area is an 11-mile section of I-10 between I-17 and the Loop 202 Santan/South Mountain freeways, including the busy Broadway Curve area between Baseline Road and 40th Street. About 300,000 vehicles already travel through the Broadway Curve daily, and that number is expected to increase as the Phoenix metropolitan area continues to grow.

The improvements will enhance safety, reduce travel time, ease access to Phoenix Sky Harbor International Airport and support the local, regional and state economies.

“Delivering this project after years of study and careful consideration of public input demonstrates ADOT’s commitment to providing the safest, most reliable transportation system in the nation,” said ADOT Director John Halikowski. “Interstate 10 is a Key Commerce Corridor that supports Arizona’s efforts to succeed in the global trade market and a vital transportation route for millions of people who live in, work in and visit our state every year. Improving safety and reducing congestion will truly benefit everyone who relies on our highway system, as well as thousands of businesses along the I-10 corridor. We are proud to deliver a project that will improve quality of life for so many people throughout the region.”

Planned improvements include:

• Widening I-10 to six general purpose lanes and two HOV lanes between 24th Street and US 60 Superstition Freeway.
• Building a collector-distributor road system between Baseline Road and 40th Street to separate local traffic from through traffic on I-10. 
• Adding a fourth general purpose lane on I-10 from US 60 to Ray Road and keeping the HOV lane.
• Modifying I-10 connections at SR 143, Broadway Road and US 60 to improve traffic flow and safety.
• Replacing ramps at I-10 interchanges at SR 143 and US 60 with new ramps, including new bridges.
• Adding two bridges for pedestrians and bicyclists over I-10 between Baseline and Broadway roads and improving the Sun Circle Trail crossing at Guadalupe Road.

The I-10 Broadway Curve improvement project is funded in part by Proposition 400, a dedicated sales tax approved by Maricopa County voters in 2004.

For more information on the project, visit i10broadwaycurve.com.

PHOENIX – An open house will give Nogales-area residents an opportunity to learn more and ask questions about coming improvements to State Route 189 before work begins on a $134 million Arizona Department of Transportation project.

The open house will be from 5 to 7:30 p.m. Thursday, Feb. 20, at Nogales High School, 1905 N. Apache Blvd. The project team will make a short presentation and then be available to provide information.

Improvements along the 3.75-mile route, including flyover ramps connecting SR 189 and Interstate 19, an overpass at Frank Reed Road and a roundabout at Target Ranch Road, are scheduled to begin in March and take approximately 18 months.

The improvements are designed to improve international commerce by creating a smoother connection to and from I-19, reduce congestion on SR 189 (Mariposa Road) and increase safety for drivers and pedestrians in the area near Nogales High School.

The work is funded in part by a $25 million investment by the Arizona Legislature and a $25 million federal TIGER (Transportation Investment Generating Economic Recovery) grant.

For more information, please visit azdot.gov/sr189.

PHOENIX – The deadline is approaching for public comment on a Draft Environmental Assessment on improvements proposed for 11 miles of Interstate 10 between the Interstate 17 “Split” interchange and the Loop 202 Santan Freeway.

The Draft Environmental Assessment, which was published on Oct. 4, is available for review at i10broadwaycurve.com. The deadline for comments to be included in the Final Environmental Assessment is Monday, Nov. 18.

The Draft Environmental Assessment examines potential environmental impacts associated with the proposed improvements. Members of the public can review the document online or in person – printed copies are available at locations listed on the study website – and provide input through Nov. 18.

There are several ways to submit comments:

• Online: i10broadwaycurve.com
• Email: [email protected]
• Phone: 602.501.5505 (Bilingual Project Line)
• Mail: I-10 Broadway Curve Study, c/o ADOT Communications, 1655 W. Jackson St., Mail Drop 126F, Phoenix, AZ 85007 

Public comments also were accepted at an Oct. 24 public hearing. About 150 people attended that event.

I-10 in the Broadway Curve area is a key commerce corridor that has seen increasing traffic in recent years, especially during the morning and evening peak hours. In 2018, I-10 west of State Route 143 carried an average of more than 287,000 vehicles each day, making it one of the busiest sections of interstate freeway in Arizona.

Proposed improvements being studied include:

• Widening I-10 to six general purpose lanes and two HOV lanes between the Salt River Bridge and US 60
• Building a collector-distributor road system between Baseline Road and 40th Street to reduce the number of lane changes on the mainline and improve traffic flow
• Adding additional general purpose lanes on I-10 from US 60 to Ray Road and maintaining the HOV lane
• Modifying I-10 connections and replacing ramps, including new bridges at SR 143, Broadway Road and US 60 to improve traffic flow
• Adding up to three pedestrian facilities to connect communities

The study team also is evaluating the no-build option – the condition that would exist if ADOT did nothing, which also serves as a comparison.

If the study receives the necessary approval, construction could begin in early 2021 and could take up to four years to complete.