There is an interesting thing related to the recent floods that happened in Begium, Germany and The Netherlands. The Netherlands spends quite a bit of effort es

There is an interesting thing related to the recent floods that happened in Begium, Germany and The Netherlands. The Netherlands spends quite a bit of effort estimating flood risks, and for more important water defenses tries to get the chance of disaster down to about one in 10000 years. However, it seems that this calculation is only done for the lower parts of the country. The Meuse was only taken seriously after a couple of floods in the 1990s (and works were just far enough in The Netherlands that places along the Meuse were mostly fine). However, for smaller rivers, nobody seems to care.