<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">there are a lot of “works” that are related to control stormwater runoff / flooding control stations (more than just a valve on a levee), that close / monitor the water outflow/inflow that is normally open for rice farming/storm runoff, and closes for extreme weather events, but it seems to be more than just a valve on a levee, as there are hundreds of thousands of those already - these are some kind of facility that go with that object. <div class=""><br class=""></div><div class=""> I would be tempted to tag them with man_made=water_works, but it looks like that it’s only for drinking water. this is storm / flood control. Is there some other man_made=* for stormwater control works (beyond levees), or a modifier key for man_made=water_works?</div><div class=""><br class=""></div><div class="">The thing I’m working with is called a drainage station or a pumping station for wastewater control ( 排水機場 ) .</div><div class=""><br class=""></div><div class="">In one larger city here, (according to a city PDF <a href="http://www.city.narita.chiba.jp/DAT/000103890.pdf" class="">http://www.city.narita.chiba.jp/DAT/000103890.pdf</a> page 3 [115]) there are 50 of these stations there alone. There are probably several thousand of these around Japan, and lots of other places built up that deal with flooding. </div><div class=""><br class=""></div><div class=""><a href="https://www.openstreetmap.org/#map=19/35.80825/140.31914" class="">https://www.openstreetmap.org/#map=19/35.80825/140.31914</a></div><div class=""><br class=""></div><div class="">Any suggestions beyond an industrial landuse?</div><div class=""><br class=""></div><div class="">Maybe this abandoned proposal? <a href="http://wiki.openstreetmap.org/wiki/Proposed_features/Pumping_Station" class="">http://wiki.openstreetmap.org/wiki/Proposed_features/Pumping_Station</a></div><div class=""><br class=""></div><div class="">This area gets a ton of water.</div><div class=""><br class=""></div><div class=""><a href="https://www.flickr.com/photos/javbw/11091220855/in/album-72157638113676925/" class="">https://www.flickr.com/photos/javbw/11091220855/in/album-72157638113676925/</a></div><div class=""><br class=""></div><div class="">Javbw </div></body></html>