What is the function of a catch basin?

The function of a catch basin is to collect debris and sediments from stormwater. Catch basins are specifically designed to prevent pollutants such as leaves, dirt, and other debris from entering the stormwater drainage system. By capturing these materials, catch basins help to maintain the quality of the water that flows into downstream water bodies, reduce the risk of clogged drainage systems, and prevent flooding during heavy rain events. This containment helps manage both water flow and quality, essential in urban and suburban environments where stormwater management is crucial for environmental protection and public safety.

While the other choices mention functions related to water management, they do not accurately reflect the primary and intended purpose of a catch basin. For instance, holding rainwater for irrigation pertains more to water conservation efforts and not the specific function of a catch basin. Similarly, serving as an aesthetic feature does not align with the practical and functional goal of catch basins. Distributing water evenly relates more to the role of other drainage components rather than the catch basin itself.