I searched the Wiki and the map for a tag to use for a waterway in a tidal flat or saltmarsh but just rivers and nothing special. A translation of slenk, a tidal stream is canal ? But it aint that.

A waterway on a tidal flat is special because the water runs in both directions and the stream changes its flow and situation regularly. The only option is river/stream tidal=yes or has anyone ever used something else ? I did not even found that combination on tidal flats.

asked 08 Feb, 22:42

Hendrikklaas's gravatar image

Hendrikklaas
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edited 08 Feb, 23:15

aseerel4c26's gravatar image

aseerel4c26 ♦
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Not sure I did it right, but you can see some tidal wetlands I did at https://www.openstreetmap.org/#map=15/33.6417/-117.8834

For the areas that have water all the time:

natural=wetland
tidal=yes

For the areas that are exposed during low tides:

natural=wetland
place=islet
tidal=yes
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answered 09 Feb, 05:23

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stf
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Hi guys, thanks for answering. I was looking at this kind of area's, https://www.openstreetmap.org/#map=13/53.9167/8.5678 and this one https://www.openstreetmap.org/#map=15/39.4766/-74.3545 But it seems that there is not any attention to the waters flowing through the Wattenmeer. They carry names like Slenk, Geul, Kreek, Gat, Balg, Spruit or Kil and the water flows in and out with the tide. IMHO they are rivers nor canals but a special item, not mentioned in the Wiki. And you have attention for the tidal flat but what about the waters in between ?I also found a place where the borders are tagged as coastlines. Just natural water ? Together with tidal=yes and water=salt/sweet or brackish ?

(09 Feb, 21:46) Hendrikklaas

When I've mapped waterways that reverse direction depending on tides, I've used waterway=stream (or waterway=drain, etc., whatever matches it best) plus oneway=no. Like you mentioned, tidal=yes would be a good idea too.

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answered 09 Feb, 00:29

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alester
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question asked: 08 Feb, 22:42

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last updated: 09 Feb, 21:46

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