California Department of Transportation

The Adopt-A-Highway (AAH) Program

Adopt-A-Highway Road sign. Telephone information listed as 1-866-Adopt a Highway. Volunteer or Sponsor

The Caltrans Adopt-A-Highway Program provides an avenue for individuals, organizations, or businesses to help maintain sections of roadside within California's State Highway System. Groups have the option to participate as volunteers or to hire a maintenance service provider to perform the work on their behalf.

The Adopt-A-Highway program, which began in 1989, has been one of the truly successful government-public partnerships of our time. More than 120,000 Californians have cleaned and enhanced over 15,000 shoulder-miles of roadside.

Participation can include one or more of the following activities:

  • Removing litter (work frequency varies with location).
  • Planting and establishing trees or wildflowers.
  • Removing graffiti.
  • Controlling vegetation.

Adoptions usually span a two-mile stretch of roadside and permits are issued for five-year periods. Groups in good standing may renew their permits indefinitely.

The Adopt-A-Highway Program is not a forum for advertising or public discourse. Please contact your local public works agency if you wish to adopt a county road or a city street that is not maintained by Caltrans.

Donít forget the Great American Cleanup is Thursday, April 24. You are encouraged to support the Great American Cleanup by scheduling work in your adopted section the week of Thursday, April 24, 2014. If this week is not possible, please schedule your work event anytime during the month of April.


Contact Adopt-A-Highway