This week crews cleaned up more than 150 acres of the Santa Maria riverbed to re-establish public walking trails and native plants.
The city says this was necessary to prevent anymore environmental destruction caused by littering and trespassing activities.
Before cleaning up, the city posted signs notifying anyone residing on its riverbed property to vacate.
They also listed social service agencies available to help.
City officials say the goal is to make the public property a safe place for everyone in the community.