<div dir="ltr"><p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Hi
everyone!</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">We have
been looking for how to tag the ruins of constructions (buildings, bridges or
roads) that are inside some reservoirs. Although they generally remain
underwater, but in times of drought, when the reservoir level drops low enough,
they can be visited on foot.  Like this [1]</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">On first
time, the combination historic=ruins + building=yes (or whatever corresponds)
identifies that it’s a historical feature, it’s in ruins and/or it isn’t
habitable. But how to indicate that it’s underwater partially or totally and its
access is occasionally possible, when the water drops?</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">I find
these tags, but none convinces me:</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Historic=wreck
[2] -> only for nautical elements</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Location=underwater
[3] -> it seems that it’s appropriate but the description tells “installed
between a water surface and the floor beneath”, it isn’t the case…</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Flood_prone=yes
[4] -> advices from a hazard, it isn’t the case…</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Is there
any more that I haven’t seen?</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">Thanks!</span></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US">[1] </span><a href="https://commons.wikimedia.org/wiki/Category:Church_of_Sant_Rom%C3%A0#/media/File:Esgl%C3%A9sia_de_Sant_Rom%C3%A0_de_Sau.jpg" style="color:blue">https://commons.wikimedia.org/wiki/Category:Church_of_Sant_Rom%C3%A0#/media/File:Esgl%C3%A9sia_de_Sant_Rom%C3%A0_de_Sau.jpg</a></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif">[2] <a href="https://wiki.openstreetmap.org/wiki/Tag:historic%3Dwreck" style="color:blue">https://wiki.openstreetmap.org/wiki/Tag:historic%3Dwreck</a></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif">[3] <a href="https://wiki.openstreetmap.org/wiki/Tag:location%3Dunderwater" style="color:blue">https://wiki.openstreetmap.org/wiki/Tag:location%3Dunderwater</a></p>

<p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif">[4] <a href="https://wiki.openstreetmap.org/wiki/Key:flood_prone" style="color:blue">https://wiki.openstreetmap.org/wiki/Key:flood_prone</a></p></div>