Dikes are structures built to control water flow and protect land from flooding. They are typically made of earth, rock, or concrete and are often found along rivers, lakes, and coastlines. Dikes help manage water levels and can prevent erosion, making them essential for agricultural and urban areas. In some regions, dikes are part of a larger system of flood control, which may include levees, canals, and pumps. These systems work together to redirect excess water and maintain safe conditions for communities and ecosystems. Proper maintenance of dikes is crucial to ensure their effectiveness during heavy rainfall or storm surges.