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Public-images-osm logo.svg nhd:ftype
Classification of waterway section in National Hydrography Dataset Show/edit corresponding data item.
Group: references
Used on these elements
use on nodes unspecifieduse on ways unspecifieduse on areas unspecifiedshould not be used on relations (except multipolygon relations)
Status: imported

National Hydrography Dataset ftype classifies a section of waterway. Appearance in OSM is result of NHD imports.

Keeping this tag in OSM is dubious as it is a classification method of objects duplicating OSM classification. For example nhd:ftype=StreamRiver on either waterway=stream or waterway=river is a pointless duplication. And nhd:ftype=StreamRiver on anything except waterway=stream or waterway=river is confusing and also unnecessary.

See National Hydrography Dataset#Attribute to tag_mapping for equivalence assumed in some imports.

See nhd:fcode=* carrying similar information but not in a human readable form.

External links