Phoenix Metro Area Projects

Loop 101 Widening Project: Shea Boulevard to Loop 202

Loop 101 Improvement Project nears completion

The $74 million Loop 101 Improvement Project between Shea Boulevard and Loop 202 (Red Mountain Freeway) in the East Valley is nearing completion.

ADOT’s Loop 101 project, which started in August 2014, has added one new travel lane in each direction on the Pima Freeway, and auxiliary (merge) lanes between most major interchanges along the 11-mile stretch that has been widened.

Crews also added a second new northbound Loop 101 lane in the area between the Loop 202 interchange and McDowell Road to provide additional room for improved and safer merging of traffic along that busy stretch of the freeway.

A final full freeway closure is scheduled along northbound Loop 101 between Chaparral Road and Shea Boulevard over the weekend of Oct. 22-23 to allow crews to place final lane stripes and other pavement markings on the new layer of smooth rubberized asphalt that was added to all travel lanes within the project’s boundaries. Crews also will upgrade bridge deck joints and place new signs while the freeway is closed.

Remaining work off the freeway, focused on wheelchair accessible improvements to sidewalk ramps at cross-street interchanges, is expected to be completed by November.

ADOT thanks drivers for their patience and the use of caution in the work zone while the Loop 101 Improvement Project has been underway.

The project has also provided upgrades to signs, including overhead message boards, along with high definition closed-circuit traffic cameras and improved freeway lighting. Landscaping, which included the salvaging and replanting of hundreds of cactuses and plants, was also a major component of the project’s goals.

Bridges have been widened and on- and off-ramps realigned to accommodate the new freeway lanes.

Even before construction started, the project’s schedule was set to avoid conflicts with major events such as the Super Bowl and its related activities, Phoenix Open golf and Cactus League baseball games. Full freeway closures were not scheduled at times when major events were taking place.

ADOT has also worked closely with partnering agencies such as the city of Scottsdale, Salt River Pima-Maricopa Indian Community, Arizona Department of Public Safety as well as the primary contractor Pulice Construction to limit impacts on local traffic and businesses.

The stretch of Loop 101 between Shea Boulevard and Loop 202 was identified as a priority for improvements by ADOT and the Maricopa Association of Governments as part of the Phoenix region’s 20-year Regional Transportation Plan approved by county voters in 2004.

Information about the project is available at

ADOT will provide advance notification of full closures or significant restrictions that affect drivers or the community, as well as information about detour routes. For detailed information on weekly construction-related closures and restrictions, check the Traffic Alerts page.



From the ADOT Blog

Work continues on Loop 101 widening project

Oct. 23, 2015

Since work on the Loop 101 (Pima Freeway) widening project is more than 50 percent complete, we thought now would be the perfect time for an update. Full story ...

Loop 101 drivers are urged to slow down in the work zone

Oct. 5, 2015

Drivers need to slow down in the work zone! Crews on the Loop 101 project have noted that not all motorists are adhering to the reduced limit through the project zone. Full story ...

Work on Loop 101 widening project continues

July 17, 2015

It's been a while since we last checked in on the Loop 101 widening project, so we thought we'd take a look and see how work is progressing. Full story ...

ASU landscape architecture students get Loop 101 tour

May 5, 2015

Learning doesn't always have to take place inside of a classroom, sometimes it can happen safely near the side of a freeway! Full story ...

Check it out: Loop 101/90th Street bridge time lapse

March 18, 2015

On Feb. 28, 2015, ADOT lowered a newly built bridge four feet to its final position. Full story ...

Loop 101 project update

Nov. 26, 2014

Work is progressing on the Loop 101 widening project we first told you about in August (and then again in September).

As northeast Valley drivers have surely noticed, crews are currently working to widen bridges within the project area and build retaining walls and sound walls. Full story ...

Loop 101 project scheduled to begin this weekend

Aug. 8, 2014

A major project that will add new lanes in both directions of Loop 101 between Shea Boulevard and Loop 202 (Red Mountain Freeway) is scheduled to begin this weekend (August 9-10). Full story ...

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