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TRAFFIC: Where to watch for road work across Tucson, southern Arizona

Here is a list of road closures in southern Arizona.
Here is a list of road closures in southern Arizona.(county of Lexington twitter)
Published: Apr. 23, 2021 at 7:03 AM MST|Updated: 1 hours ago
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Below is a list of traffic projects around southern Arizona. Weather-related road closures in Pima County can be seen HERE.

The list was last updated Monday, Aug. 2.

I-10/Houghton Road interchange: Through late 2021

An interchange reconstruction project will cause traffic adjustments.

Drivers should consider Rita Road and Wentworth-Colossal Cave Road as alternate routes to their commute.

The work is part of a project to replace the current interchange with a Diverging Diamond Interchange. For more about the project, click HERE.

A diverging diamond interchange is being built at the I-10/Houghton Road interchange.
A diverging diamond interchange is being built at the I-10/Houghton Road interchange.(Arizona Department of Transportation)

Houghton Road: Through early 2023

South Houghton Road will be widened from two lanes to four between I-10 and Andrada Polytechnic...
South Houghton Road will be widened from two lanes to four between I-10 and Andrada Polytechnic High School in a project scheduled to last until early 2023.(Esri)

Construction crews will begin a roadway improvement project on South Houghton Road from the I-10 interchange to Andrada Polytechnic High School, 12960 S. Houghton Road.

Starting Thursday, July 22 between the hours of 6 a.m. and 3 p.m., Monday through Friday, crews will clear vegetation, pothole for utilities, place caution barriers and bring equipment to the project site. Traffic will remain in the current configuration while the contractor builds new southbound lanes, west of the roadway, along with drainage improvements.

Improvements will include widening of South Houghton Road from a two-lane roadway to a divided four-lane roadway, a separated multi-use path that will connect to the Loop, drainage and intersection improvements. The project is expected to be completed late winter of 2022/2023.

Traffic control changes and speed reductions will occur as work progresses.

More information on the project is available HERE.

I-10/Ruthrauff Road traffic interchange: Through late 2021

Artist's rendering of the future Ruthrauff Road interchange on I-10 in Tucson. (Source: Arizona...
Artist's rendering of the future Ruthrauff Road interchange on I-10 in Tucson. (Source: Arizona Department of Transportation)(Arizona Department of Transportation)

The Interstate 10/Ruthrauff Road traffic interchange is being reconstructed to improve traffic operations on both roadways.

Anticipated project timeline

  • Mid-Jan. 2020 - Construction begins
  • Winter/Spring 2020 - Interchange closure begins
  • Late Summer 2021 - Ruthrauff Road/El Camino del Cerro reopens over I-10 (the interchange/ramps will not be open)
  • Late 2021 - Interchange reopens to traffic

ADOT will maintain access to businesses throughout the project. The Chuck Huckelberry Loop will remain open throughout the project.

Schedules are subject to change based on weather and other unforeseen factors. To receive project updates and traffic alerts via email, subscribe here.

For alternate routes, project information, and documents click here.

Sewer repairs

Aug. 2-3

6710 N. Calle Zella

Aug. 4-6

4116 W. Firethorn Avenue

Old Nogales Interceptor (ONI) Improvement Project: The ONI project is designed to increase capacity and install sewer infrastructure in order to manage flows along the new Aerospace Corridor and Aerospace Parkway.

Crews are working on the final phase, which extends from 36th Street, near Euclid Avenue, south to Aerospace Parkway, and generally follows the Union Pacific Railroad alignment.

During August and September, Fair Avenue from Michigan Drive to Irvington Road will be closed. Access to residential and business properties in the area will be maintained.

For more information, please visit www.sewerimprovements.info or call the information line at 520-622-2527.

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