On 5 April 2010 21:57, Franc Carter <Franc.Carter at intersect.org.au> wrote: > Hi, > > What if anything have people been using to map 'floodways', i.e > channels that are design to retain water in high rainfall times., e.g I've mostly used waterway=drain http://wiki.openstreetmap.org/wiki/Tag:waterway%3Ddrain