Every winter, after heavy rainfall, the Moselle valley is flooded. Regularly, damage occurs in the villages in the Moselle valley, e.g. in Schengen or Remich.
How important wetlands are in such times and what water masses they can absorb becomes clear. For example, the water level at the pond around the Biodiversum rises by over 50 cm within a very short time. The Moselle flood enters via pipes below the Moselle road, which cuts the wetland off from the watercourse. Nobody considered the importance of the wetlands as flood protection when this road was built in the 1980s.
Today, however, this is regularly pointed out: During the International Wetlands Day, Patric Lorgé was able to broadcast in prime time on RTL Radio Luxembourg to inform the public about the importance of wetlands and to invite listeners to the upcoming visits to wetlands.
After the heavy rains and the storm "Sabine" some paths in the Haff Réimech had to be closed due to flooding.
Fewer water birds
The mild temperatures of this winter brought only few water birds to Haff Réimech: never more than 2 Great Bittern and no Smew were reported. On 1 January and for the first time, the five european Grebe species could be observed together on one pond: in addition to the Great Crested Grebes and Little Grebes, a Black-necked Grebe, an Eared Grebe and a Red-necked Grebe could be seen there.