At 2009-10-15 12:49, Charlotte Wolter wrote: > Here in the western US (and in many desert areas) we have a > phenomenon known as an intermittent stream. Sometimes a major waterway, > such as the LA river, will be bone dry most of the year, but turn into a > torrent when it rains. The same is true for most smaller waterways. > In addition, in urban areas these same "streams" often are > encased in concrete walls to control them during those rare occasions > when they are full. However, calling them "drains" isn't really what they > are, so I've still used "stream." > The USGS (US Geological Service) has a dotted and dashed line for > intermittent streams. Do you think that's appropriate for OSM and should > I propose it? I think it is applicable to many desert areas.
These streams/rivers that have been encased in concrete, often with a basin or a river at one end, seem to be officially called "channels" here in San Bernardino County by the flood control district that did most of the work. The closest thing I could find in OSM was waterway=drain, based on the distinction of it being concrete instead of just earth (I think that was in one of the relevant Wiki pages). This makes sense, too, given that storm drains from streets seem to empty into them. Where the concrete ends, I change to tagging as stream or river, as appropriate. -- Alan Mintz <[email protected]> _______________________________________________ newbies mailing list [email protected] http://lists.openstreetmap.org/listinfo/newbies
