hulevesiviemärin

Hulevesiviemäri, known in English as a storm sewer or surface water drain, is a sub-surface drainage system designed to collect and transport rainwater and other surface runoff away from developed areas. Unlike sanitary sewers that carry wastewater from buildings, hulevesiviemäri systems are exclusively for managing storm water. This helps to prevent flooding in urban environments, protect infrastructure from water damage, and reduce the load on wastewater treatment plants.

The design of a hulevesiviemäri system typically involves a network of underground pipes, culverts, and ditches. Entrances to the system are usually through grates or inlets located on streets, sidewalks, and other impervious surfaces. These inlets capture surface water, which then flows into the pipe network. The pipes are generally sloped to allow gravity to move the water towards its discharge point. Discharge can be into natural water bodies such as rivers, lakes, or the sea, or sometimes into dedicated detention or retention basins.

Effective hulevesiviemäri systems are crucial for urban planning and environmental management. They mitigate the risks associated with heavy rainfall, improve public safety by keeping roads clear of standing water, and can help to filter pollutants carried by runoff before they reach natural ecosystems. Maintenance of these systems is also important to ensure they function correctly and are not blocked by debris.