Near-term improvements completed near Loop 303/US 60 interchange

ADOT has added lanes, more room for turns in Surprise area

PHOENIX - Interim changes to help improve traffic flow at and near the Loop 303 interchange with US 60 (Grand Avenue) in Surprise have been completed, according to the Arizona Department of Transportation.

The improvements include additional turn lanes from east- and westbound Grand Avenue to 163rd Avenue, west of the Loop 303 interchange. Crews also expanded the southbound Loop 303 off-ramp by adding a third left turn lane onto Grand Avenue.

Work on the $1.8 million project started last September. Final lane striping and other pavement marking work was completed early this morning (Friday, Feb. 27).

ADOT has partnered with the Maricopa Association of Governments (MAG), the Valley's metropolitan planning organization, and the City of Surprise to make these interim improvements near the busy Loop 303/US 60 interchange.

Other completed improvements include widening the southbound Loop 303 on-ramp from Grand Avenue to provide more room for traffic to merge and adding an eastbound US 60 right-turn lane approaching Loop 303.

Long-term improvements at the interchange will be studied and planned for construction under MAG's Proposition 479 freeway funding program. Potential future improvements include reconfiguring the interchange and constructing new on- and off-ramps to cross the nearby BNSF Railway tracks. The first phase of long-term improvements to address congestion at Loop 303 and US 60 will begin construction in 2028, including a new traffic interchange at Loop 303 and 155th Avenue to provide additional access for residents.

Real-time highway conditions are available on ADOT's Arizona Traveler Information site at az511.govand via the AZ511 app (download free forAppleand Androiddevices). ADOT also provides highway condition updates via its X feed, @ArizonaDOT.