Phoenix Metro Area Projects

Loop 303 Improvement Project: North of Interstate 10

Traffic Alerts

Loop 303 / I-10 Interchange
  • Frontage Road Update: The I-10 frontage roads connecting to/from Cotton Lane are now open.
US 60 to Happy Valley Parkway
  • Loop 303 will be narrowed to one lane in each direction between US 60 (Grand Avenue) and Happy Valley Parkway.

For the most current information on closures and restrictions, ADOT recommends bookmarking this page and subscribing to receive traffic alerts by email. ADOT reminds drivers to allow extra travel time and to proceed with caution through active work zones.