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Improvements to I-10
The I-10 Widening project from Prince Road to 29th Street is a vital improvement to the I-10/I-19 corridor, which currently experiences heavy traffic and congestion during peak hours, and is projected to handle rapidly increasing traffic during the coming years. Adding capacity to the roadway will increase safety and maintain mobility in and through the Metro Tucson area. Keeping this developing economic corridor moving is key to realizing potential economic growth and minimizing long-term environmental and lifestyle impacts on surrounding neighborhoods.
Originally planned to be constructed as three separate projects, which would have taken 10 years to complete and would have increased the cost to taxpayers by 30 percent, this project will be complete in three-and-a-half years at a cost of approximately $200 million.
- Expands I-10 to Eight Lanes
The project expands the current six-lane freeway to eight lanes—four in each direction, with an additional auxiliary lane between entrance and exit ramps.
- Builds Seven New Bridges and Underpasses
Seven new bridges and underpasses will be constructed, one at each of the following intersections: Grant Road, Speedway Boulevard, St. Mary's Road, Congress Street, Granada Avenue/Clark Street, 18th Street and 22nd Street.
These new bridges are being built with the capacity to accommodate future City improvements and the widening of cross streets.
Project History
View Project History for background information on the project, including frontage road improvements needed to prepare for I-10 construction.
Public Outreach
View Public Outreach for an overview of the extensive public information and involvement efforts implemented during the planning and design phases of this project.
Project Improvements
View Project Improvements to see renderings, illustrations and photos of models portraying the project improvements.
Project Progress Photos
View Project Progress Photos to see aerial photos of work in progress.
It's Easy to Stay Informed! For
current information on closures and construction,
click here for the most recent traffic
alert. Or, call the I-10 Hotline at (520) 327-6444
or toll-free at (877) 961-1010 for further questions
and concerns. Click here to request traffic
alerts by e-mail. Para información
en español, favor de comunicarse con Paki
Rico al (520) 327-6077.
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