Commemorating the 1927 Flood. Imagining the Next 100 Years Together.

The Mississippi River 100 (MR100) is a two-year initiative that recognizes the complicated legacy of the Great Mississippi River Flood of 1927 — a transformative event that reverberated across the nation – but with a particular impact in the Gulf region. This singular event reshaped how we govern and manage water, exposed social disparites, and contributed to major demographic shifts and cultural expression.

The Great Flood submerged more than 23,000 square miles of land across seven states, displacing hundreds of thousands of people, killing hundreds more, and causing significant damage to infrastructure and economies.

One hundred years later, MR100 connects people from up and down the Mississippi River and its entire basin to reflect on the past and collaboratively chart a future grounded in resilience, innovation, and imagination.

Facilitated in partnership with the National Academies of Sciences, Engineering, and Medicine’s Gulf Research Program and The Water Institute, the MR100 initiative convenes scientists, artists, communities, and policymakers to ask and address the big questions: What have we learned in the last 100 years? What do we still need to learn? What needs to change? And what future do we imagine for the river and for those who depend on it?