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: Jan. 21, 2022 at 1:47 PM MST
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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, Jan. 24.

Horizon Hills Drive: Jan. 24-25

Crews are scheduled to re-stripe Horizon Hills Drive between Thornydale Road and Starshine Drive.

Drivers can expect lane restrictions and intermittent lane closures on Jan. 24 and 25 between 8 a.m. and 5 p.m. each day.

Minor delays may occur during this work.

Kolb Road - Sabino Canyon to Sunrise Drive: Through spring 2022

The project to widen Kolb Road to a three-lane roadway is expected to be completed in late spring of 2022. A roundabout will be installed at the Territory Drive and Kolb Road intersection.

Work on temporary traffic control modifications will begin Monday, Jan. 10.

All traffic will be shifted around the Kolb Road and Territory Drive intersection onto the detour lanes. North and southbound turn movements will not be affected.

SR 77/Oracle Road: Through late 2022

The Arizona Department of Transportation is paving four miles of State Route 77/Oracle Road with plans to finish by late 2021.

The work will take place on the southern end of the project, with paving operations on Miracle Mile between Interstate 10 and Oracle Road and on Oracle Road from Miracle Mile to River Road.

Most of the work will occur between 7 p.m. and 6 a.m. Sundays through Thursdays.

During work hours, drivers can expect large vehicles and equipment on the roadway, uneven pavement and reduced speed limits through December. One lane of travel will remain open during pavement operations.

The new pavement is one of many improvements planned as part of a two-year, $34 million project to improve the highway between Interstate 10 and Oracle Road, as well as on Oracle Road from Miracle Mile to Calle Concordia.

Additional pavement work will resume in 2022.

Drivers should expect some daytime lane restrictions and delays throughout the project. ADOT will maintain access to the roughly 1,100 businesses in the corridor.

For more information about the project, please visit

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 are working on a roadway improvement project on South Houghton Road from the I-10 interchange to Andrada Polytechnic High School, 12960 S. Houghton Road.

Starting Sunday, Jan. 23, crews will install storm drainage pipes, new curb, catch basins and grading along the shoulder on Houghton Road.

One southbound lane will be closed, starting just north of the I-10 overpass through the Houghton Road project limits. This closure will remain in place until late April.

Project Scope

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 and, drainage and intersection improvements. The project is expected to be completed early 2023.

For more information on the project, please visit

Please approach the area with caution and obey all traffic control devices. Traffic control changes and speed reductions will occur as work progresses.

Sewer repairs

Crews will repair sewers at the following locations:

Through Jan. 24

633 W. 18th Street

Jan. 24-25

2947 W. Calle Agua Nueva

7501 E. Lee Street

7600 E. Lee Street

Through Jan. 25

East Elida Street (vicinity of E. Pima Street and N. Bryant Avenue)

Jan. 24-25, 28

5070 E. Gleneagles Drive

Jan. 24-26

8451 W. McCain Loop

Jan. 24, 26, 28

6350 N. Camino De Santa Valera

Jan. 24, 27

7700 E. Linden Street

Jan. 24, 27-28

6210 N. Camino Pimeria Alta

6220 N. Camino Pimeria Alta

Jan. 24-28

3233 N. Dodge Boulevard

2501 W. Alvaro Road

6150 S. Cardinal (crossing Calle Capistrano)

Jan. 25

4996 W. Los Reales Road

2050 N. Grady Avenue

Jan. 26

5821 S. North Arrow Road

Jan. 26-27

361 E. Calle Herbosa

363 E. Paseo Azul

Jan. 26, 28

9067 E. Kenyon Drive

9011 E. Kenyon Drive

9041 E. Kenyon Drive

Jan. 27

8900 E. Kenyon Drive

7821 E. Waverly Street

Jan. 28

6200 N. Camino Pimeria Alta

4801 E. Camino De Los Olivos

4945 E. Calle Guebabi

7395 N. Dickinson Place

374 E. Via Terrenal

375 E. Duval Road

381 E. Via Terrenal

8900 E. Kenyon Drive

Old Nogales Interceptor Sewer Improvement Project

Crews will install a 36-inch sewer pipe across Valencia Road at Nogales Highway through mid-March.

There will be lane restrictions for northbound Nogales Highway at and near the Valencia Road intersection, and traffic control will change as work progresses.

Traffic control will be in place 24-hours per day. Northbound Nogales Highway will be reduced to one through-travel lane at the intersection of Valencia Road during January.

The Old Nogales Interceptor Sewer Improvement Project is designed to increase capacity of the existing Old Nogales Interceptor and the Park Avenue Sewer in addition to installing sewer infrastructure to manage the future anticipated flows along the new Aerospace Corridor and Aerospace Parkway. The total length of the project is nearly 14 miles and extends west along Old Vail Connection Road from the Wilmot State Prison to Nogales Highway and north along the east side of Nogales Highway, where it discharges into the Southeast Interceptor at 36th Street and Euclid Avenue. Sign up to receive traffic alerts that detail construction activities by clicking the “Stay In Touch” button at the bottom of the project web page:

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