(Above) Main branch of the Chicago River, seen from Salesforce Tower Chicago on June 19.

By Steven Dahlman

Sep. 17, 2025 – A Chicago nonprofit working to transform the 156-mile Chicago-Calumet River system has been awarded the prestigious Thiess International River Prize by the International River Foundation.

The award was announced at the International River Symposium in Brisbane, Australia, on September 10.

In addition to worldwide recognition, the prize includes $100,000.

Friends of the Chicago River was one of four finalists that included the Lower Klamath Project to remove four hydroelectric dams and restore the Klamath River in Oregon and California, the Cumbria River Restoration Strategy in the United Kingdom, and a campaign to safeguard the Vjosa River that flows through Greece and Albania.

“The Chicago River’s transformation is evidence of what’s possible when communities, scientists, and government unite behind a shared vision,” said Michael Wright (right), chair of the Australia-based International River Foundation.

“Their success highlights a legacy of ecological renewal and civic pride that can inspire cities worldwide,” Wright said.

Among the hundreds of delegates at the symposium was John Quail, Friends of the Chicago River’s Director of Policy and Conservation.

Margaret Frisbie, Executive Director of Friends of the Chicago River, says the award confirms the global significance of the Chicago-Calumet River system. “It shows that urban rivers – when championed – can be restored for all people, water, wildlife, and contribute to climate resilience,” said Frisbie (left).

Founded in 1979, Friends of the Chicago River has more than 45,000 members, volunteers, and online activists.