storm sewers(A storm drain, storm sewer (US), stormwater drain (Australia and New Zealand) or drainage well system (UK) or simply a drain or drain system is designed to drain excess rain and ground water from paved streets, parking lots, sidewalks, and roofs. Runoff into storm sewers can be minimized by including sustainable urban drainage systems (UK term) or low impact development practices (US term) into municipal plans. wiki Alexander Demidov)
