Key:manhole

From OpenStreetMap Wiki
Jump to navigation Jump to search
Public-images-osm logo.svg manhole
Coverhkv.jpg
Description
Hole with a cover that allows access to an underground service location, just large enough for a human to climb through Edit or translate this description.
Group: Man made
Used on these elements
may be used on nodesshould not be used on waysshould not be used on areasshould not be used on relations
Requires
Useful combination
Wikidata
Status: in use

Where pipeline themselves have not yet been discovered, it can be beneficial for future mappers to mark the locations of manholes for later uses.

Values

manhole=* can take any values, but the following are the first set in use

  • plain: manhole covers with no markings at all available
  • unknown: manhole cover with unknown markings, or of unknown use. Combine with label=* when possible for later identification.
  • water: maintenance access to clean water pipelines
  • rainwater: maintenance access to rainwater pipelines (consider using drain)
  • sewer: maintenance access to pipelines carrying wastewater (sewage)
  • drain: surface water drain for removing rainwater
  • heat: district heating maintenance holes
  • cold: district cooling maintenance holes
  • gas: maintenance access to gas transport pipelines
  • telecom: maintenance access to pipelines containing telecommunication cables
  • power: access to underground electricity wires
  • other: all you can think of

Tips on surveying

Often the manhole covers themselves don't feature a description of what's below, but you'll find a marker on a nearby wall, or on a dedicated stick or ventilation shaft. On such markers you might be able to read the distance to the manhole along with a diameter of the pipeline and/or an indicator of pipeline contents; some markers feature a number suitable for the tag ref=*.

When the cast iron covers themselves read "40" or "25", it's usually just a maximum weight restriction (in tonnes).

See also