For centuries, the Tisza River has shaped life on Hungary’s Great Plain—but it has also brought recurring flood risks. Major floods in recent decades have made it clear that traditional defenses alone are no longer enough. The Tisza–Túr flood reservoir, built with European Union support, offers a modern solution. Developed as part of the Vásárhelyi Plan, the project aims to provide long-term protection for communities along the river. Its core function is simple but effective: