Stormvannsutløp

Stormvannsutløp, which translates to stormwater outlet or storm drain outlet in English, refers to the point where a storm sewer system discharges excess rainwater and surface runoff into a natural body of water. These outlets are crucial components of urban infrastructure, designed to manage and direct precipitation that falls on impervious surfaces like roads, rooftops, and parking lots. Without these systems, heavy rainfall could lead to localized flooding, damaging property and disrupting transportation.

The design and location of stormvannsutløp are important considerations for environmental management. While they effectively remove water from urban areas, the discharged water can carry pollutants such as oil, grease, sediment, litter, and chemicals from the streets. These pollutants can negatively impact the water quality of receiving rivers, lakes, or oceans, affecting aquatic life and potentially human health. Consequently, many modern stormvannsutløp are accompanied by various forms of stormwater management practices, including detention ponds, rain gardens, and filtration systems, aimed at treating the runoff before it reaches the natural watercourse. The presence of a stormvannsutløp is often indicated by a grate or an opening near the edge of a waterway where water flows out of underground pipes.