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Public-images-osm logo.svg place = polder
Seehundstation Schleuse.JPG
A polder. Edit this description in the wiki page. Edit this description in the data item.
Group: places
Used on these elements
may be used on nodesshould not be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Status: in use

Polders  Polder are land areas that forms an artificial hydrological entity, enclosed by embankments. Most of polders are in the Netherlands and middle and lower reaches of the Yangtze River Basin. In the Netherlands, these lands usually are under sea levels, with canals and pumping stations to drain waters. For a long time, pomping stations were polder mills, a kind of windwill, but they are rare now, replaced by electric pumps.

This tag is the result of a talk https://community.openstreetmap.org/t/taggen-van-polders/9309 which conclude that it was the best way to define polders in OSM.