Pont-l'Évêque, in the Pays d'Auge, has been hit by floods for the third time in three months. The commune is irrigated by three rivers: the Touques, the Calonne and the Yvie.

“There is a culture of flood risk here,” breathes the director of services. A retention basin project, via a dike upstream of the city, was canceled in the early 2000s because of the law on ecological continuity.