A levee system is a series of embankments or walls designed to prevent flooding by controlling the flow of water in rivers and other bodies of water. These structures are typically made from earth, concrete, or other materials and are built along riverbanks or coastlines to protect nearby land and communities from rising water levels. Levee systems are crucial in areas prone to flooding, such as those near the Mississippi River or New Orleans. They help manage storm surges, heavy rainfall, and snowmelt, ensuring that water stays within designated channels and reducing the risk of property damage and loss of life.