Peak flow control structures (leaky woody dams) [Hungary]

Leaky woody dams are natural flood management structures constructed from logs and branches, designed to mitigate peak flow velocities and volumes in catchment areas. These structures permit low water flows to pass through while impeding high flows, thereby providing temporary water storage and enhancing infiltration. Typically elevated 30 cm above the streambed, leaky dams allow baseflow and aquatic life to continue unimpeded. Commonly applied in hilly, forested regions, they serve as a sustainable solution to reduce flood risks and improve water management.