A swale is a commonly used stormwater practice wherein a shallow ditch is placed alongside the street at the front of a property. A swale allows for temporary ponding or channeling water to storm drains, resulting in less street flooding, and also reduces the pollution of water bodies by filtering the runoff before it reaches a drain. Unlike ditches, swales are not deep or with straight sides; they have gently sloping sides and are wider than they are deep (usually a 4:1 ratio).
It is the adjacent property owner's responsibility to maintain these open pathways and reduce roadway flooding. Plantings should be kept to a minimum, and if your swale is paved, please consider removing asphalt in these areas and replacing with sod or drainage pavers if used for parking. Contact The utilities department if you would like to discuss your options.