Central District Projects

Interstate 17 Frontage Road Drainage Improvement: Greenway Road to Peoria Avenue


The Arizona Department of Transportation is constructing improvements to the cross street drainage system along the Interstate 17 frontage road between Greenway Road and Dunlap Avenue in Phoenix. The purpose of the project is to improve the drainage facilities that remove storm runoff from the Greenway, Thunderbird, Cactus, and Peoria cross streets, helping to reduce the potential for flooding at the Interstate 17 overpasses.

The improvements will include a new, gravity-powered storm drain system, utilizing various sizes of concrete pipes and new drainage basins at Thunderbird Road, and the removal of the existing pump stations from the aforementioned cross streets.The new system will discharge into the Arizona Canal Diversion Channel (ACDC), north of Dunlap Avenue

View an illustration ( English | Español ) of how a gravitational flow drainage system works.

Project Schedule

Construction is scheduled to begin in the late summer/fall 2019.

Schedules are subject to change based on weather and other unforeseen factors. If you would like to be notified via email when traffic alerts are issued, please subscribe to receive email notification.

Public Involvement

ADOT welcomes questions about this project.

  • Telephone: Call the ADOT Project Information Line at 855.712.8530
  • Email: projects@azdot.gov
  • Mail: ADOT Communications, 1655 W. Jackson Street MD 126F, Phoenix, AZ 85007
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