PHOENIX, Arizona — The Arizona State Transportation Board has approved a sweeping $11.3 billion five-year highway plan that includes a brand-new freeway for the West Valley, major widening projects across Maricopa County, and interchange upgrades that will reshape how drivers navigate the Phoenix metro area for years to come.
The centerpiece of the plan is State Route 30, a new freeway that will connect Loop 303 to Loop 202 South Mountain in the West Valley. Construction is scheduled to begin next summer, according to the Arizona Department of Transportation. The project is expected to relieve congestion on Interstate 10 and provide a direct east-west corridor through one of the fastest-growing parts of the region.
In the heart of the metro area, the long-awaited Mini-Stack interchange improvements will bring widening and other upgrades to the junction of Interstate 10, Loop 202, and State Route 51 east of downtown Phoenix — one of the state's most heavily traveled and frequently congested interchanges.



