A catch basin is a type of drainage structure designed to collect and manage stormwater runoff. It typically consists of a large, open chamber that captures debris, sediment, and water, preventing them from entering the drainage system. Catch basins are commonly found in urban areas, where they help reduce flooding and protect water quality. These structures are usually made of concrete or plastic and have a grate on top to allow water to flow in while filtering out larger particles. Regular maintenance, such as cleaning and inspection, is essential to ensure that catch basins function effectively and prevent blockages.