The annual clean-up takes place every third Saturday in June.
It stretches all the way from Pennsylvania to Illinois with thousands of volunteers picking up trash along the way.
Today in Evansville volunteers focused on areas around dress plaza and pigeon creek.
Project organizers say over 100 volunteers helped in the Evansville area.
“It just makes me feel so proud to know that we have such a great community that shows that they care, and they won’t hesitate to come out and spend some hours out of their weekend, everyone’s busy now-a-days, and it just shows hey I’m going to give a little bit of my time to show that I want to keep the rivers clean,” says CSO manager of EWSU Carl Gist.
The event first took place in 1989.