|landuse = reservoir|
|An artificial lake which may be used to store water.|
|Rendering in openstreetmap-carto|
|Used on these elements|
|Status: in use|
|Tools for this tag|
Man made body of stored water. May be covered or uncovered. Usually formed by a dam over a natural water course, water then backs up into a natural valley or depression.
There was considerable confusion whether landuse=reservoir is deprecated, but it turned out to be not deprecated and landuse=reservoir is used more widely than "new" way natural=water + water=reservoir.
It may be a good idea to tag the actual water body with natural=water + water=reservoir in addition or instead of landuse=reservoir. See also the approved water details proposal and pointers to discussion on talk page.
How to tag
Begin by placing a node or a closed way on the map, and tagging it with
|landuse=reservoir||A man-made body of stored water.|
It sometimes makes sense to add the following tags:
|name=*||The name of the reservoir, if known.|
|covered=yes/no||Whether the reservoir is covered, typically buried underground.|
|natural=water + water=reservoir||Can be added if the reservoir is also a body of open water.|
Osmarender has different rendering rules using the key reservoir_type=*:
- approved and active: water details proposal which provide alternative tagging.
- in mail discussions the wish was formulated to create a tagging scheme covering areas and objects related to water reservoirs (a superset of the current definition). Although it might seem logical to use landuse=reservoir for such purpose this would conflict with the current widely used definitions and another tagging scheme should be proposed instead.
- water=reservoir This is regarded as the same.
- landuse=pond (deprecated)
- Example: Stroud Green (covered reservoir) on Wikimedia Commons