The Arizona Department of Transportation announced on Apr. 10 that sections of a new fourth westbound general purpose lane have opened along the Loop 101 (Agua Fria Freeway) between Interstate 17 and 51st Avenue, as part of an ongoing $140 million widening project.
The project aims to improve traffic flow in the area, with full completion expected by spring 2027. The expansion is intended to offer drivers a preview of the benefits anticipated once all construction is finished. Closures and lane restrictions will continue as work progresses between I-17 and 75th Avenue.
Construction began in September 2024, funded through Proposition 400—a regional transportation plan approved by voters in 2004 and managed by the Maricopa Association of Governments. Additional improvements are underway, including a new freeway entrance turn lane along southbound 75th Avenue. Project updates can be found at azdot.gov/loop-101-75th-ave-i-17.
The Arizona Department of Transportation manages various facilities across the state, such as rest areas and snowplow operations using specialized equipment, while monitoring highways with cameras according to the official website. The department also provides real-time highway conditions via its Arizona Traveler Information site at az511.gov and through the AZ511 app for Apple and Android devices.
Jennifer Toth serves as director for ADOT, overseeing planning, design, construction, maintenance, and operation of transportation systems statewide according to the official website. The department works alongside regional partners on projects like corridor studies and traveler information systems according to the official website, aiming to safely connect people while supporting economic growth according to the official website.
ADOT’s responsibilities extend from highway projects in multiple districts—including sites such as Grand Canyon National Airport—to infrastructure enhancements at airports and ports throughout Arizona according to the official website.
