The Arizona Department of Transportation opened a new northbound Loop 101 lane between Shea Boulevard and Princess Drive Monday morning.

The lane in Scottsdale is  part of a $108 million improvement project to assist traffic flow along the freeway.

Crews put in place lane stripes and removed barricades over the weekend. There are now four general purpose lanes and a high-occupancy vehicle lane open along northbound Loop 101 between Shea Boulevard and Princess Drive/Pima Road.

ADOT plans to open a new southbound lane along the 4.5-mile project work zone following a Nov. 7-10 weekend closure between Princess Drive and Shea Boulevard, state transportation officials said.

The Loop 101 Improvement Project started in January 2024 and is set to be completed early next year.

A separate short-term project is slated to start in spring to improve the freeway’s pavement surface, according to ADOT.

In addition to constructing new freeway lanes, crews have worked on the following Loop 101-related improvements:

• Traffic-signal and turn-lane enhancements at the Frank Lloyd Wright Boulevard interchange.
• Turn-lane additions at the Shea Boulevard, Raintree Drive and Princess Drive/Pima Road interchanges.
• Installing new signs, traffic signals and freeway lighting.