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Public-images-osm logo.svg water = rapids
Karvionkoski rapids.jpg
A fast-flowing and turbulent section of a waterway which is not a waterfall.
Group: water
Used on these elements
should not 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)
See also
Status: in use

The tag water=rapids is used in combination with natural=water to map individual rapids as areas. A rapid is a fast-flowing, often turbulent section of a watercourse such as a river, often containing exposed rocks or boulders. For rapids mapped as nodes or lines, see water=rapids. For rapids as an attribute of waterways, see rapids=*.


For boat safety, all rapids should be mapped as attributes of waterways using the rapids=* tag. However, additionally mapping rapids as separate features can help with use cases like rendering and geocoding.

How to map

Draw a closed way around the area of river containing the rapids and tag as natural=water + water=rapids. Different rapid areas should not overlap with each other.

Useful combinations

See Tag:waterway=rapids#Useful combinations.

Examples of rendering on maps

Rapids USGS.png

Alternative tagging

See Tag:waterway=rapids#Alternative tagging.