Relation:bridge

bridge
Description
relation used to link the various elements needed to map large or complex bridges Edit or translate this description.
Group: Bridges
Members
  • way - across
  • way - under
  • way - on_bridge
  • area - outline
  • way area - edge
Implies

layer=≥1

See also

Relation:tunnel

Status: proposedPage for proposal
More details at taginfo
Tools for this tag


This page is about a relation that is in use and has not yet been voted on.


The bridge relation is used to group the various objects that combine to accurately map the functions and structures of a bridge.

Adding a man_made=bridge tag for this relationship is inappropriate, rather, this tag should only be given to the bridge's outline (which must be a member with the role outline of this relation).

Functionally, this relation does not add any new information for typical bridges, it only duplicates the existing ones. All information it may contain can almost always be added per area by adding them along with the man_made=bridge tag.

Suggested tags

Tag Value Description
type bridge/tunnelIdentifies a relationship as representing a bridge or tunnel.
layer layer numberIf omitted, assume 1 for a bridge and -1 for a tunnel; sometimes a bridge crosses above or runs beneath another bridge, so 2 may be needed.
name name
The name most commonly used in everyday, native conversation to refer to a bridge or tunnel (e.g., “Tower Bridge”).
ref reference identifier
Bridges are sometimes numbered or assigned a similarly styled unique identifier within regional, national and/or international catalogs (e.g. along canals in the United Kingdom)
height height (in meters)
The height of the bridge as measured from ground level to the deck surface of the bridge (usually learned from a plaque(s) placed at the ends of the bridge or on its railing).
length length (in meters)The length of the bridge as measured between its outermost supports.
operator entity nameThe entity responsible for the bridge's use, safety and/or maintenance (e.g. "Network Rail").

See also

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