The Curve Unbound: Arizona’s Road to a New Dawn

The Broadway Curve, one of Arizona’s most heavily traveled freeway corridors, has entered a new phase. What was once a high-congestion zone on Interstate 10 between Phoenix and Tempe is now a more streamlined, efficient system thanks to strategic infrastructure enhancements completed by the Arizona Department of Transportation (ADOT).
On February 12, 2025, new general-purpose lanes opened from I-17 near Sky Harbor Airport to Baseline Road eastbound, and from US 60 to 32nd Street westbound. These additions significantly reduced bottlenecks and improved flow across the corridor. Then, on April 10, high-occupancy vehicle (HOV) lanes opened between I-17 and US 60, offering carpoolers and transit users greater efficiency. Additionally, a new flyover bridge now directs westbound I-10 traffic to northbound SR 143, and southbound SR 143 to eastbound I-10—minimizing lane-changing conflicts and improving ramp access.
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