A storm drain is a component of engineered civil infrastructure designed to collect and convey surface runoff water, typically rainwater, from impervious surfaces such as streets, parking lots, and rooftops. These systems utilize an underground network of pipes and conduits to manage the rapid flow of excess precipitation away from developed areas. The function relies primarily on gravity to transport the collected flow into a larger drainage system, which ultimately discharges the water into natural water bodies. The efficiency of storm drain systems is critical for mitigating localized flooding and reducing the erosive force of uncontrolled runoff. Proper design and maintenance are necessary to prevent blockages, manage pollutant load, and ensure the structural integrity of the water conveyance network.