Tag:waterway=weir

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Public-images-osm logo.svg waterway = weir
Wehr-Königsgraben.jpg
Description
A barrier built across a river, sometimes to divert water for industrial purposes. Water can still flow over the top.
Used on these elements
may be used on nodes
may be used on ways
should not be used on areas
use on relations unspecified
Useful combination
name=*
Status: Approved

A barrier built across a river, sometimes to divert water for industrial purposes. Water can still flow over the top. In the US this is often called a low-head or low-rise dam.

How to map

ElementNode.png
ElementWay.png

To map a small weir add a node along a river and tag it waterway=weir. If the weir has a name tag it name=*.

If the weir is long enough to be mapped as a way, create a way along the length of the weir and tag it waterway=weir. Again, add a name=* if it is known.

Sometimes a fish pass is related with the weir.

Tagging examples

Picture/Description Tags Mapnik Osmarender
Wehr-Königsgraben.jpg waterway=weir Render Weir1.png  ?? (Currently same as river)

Other photos

Alifakovac Miljacka.jpg

See also