Just one last add about Draguignan. Here is the map showing the risk and established in 2005.
To help:
The red line reprensent the maximum recorded flood
Maison d'arrêt = jail
Maison de retraîte = retirement home
Sécurité Civile = relief coordination center.
When the flood occured in 2010, the "sécurité civile" center had been expended to include the main fire station and the firemen HQ. Of course, we, the French, are the brightest and most inteligent people on the planet (Obvious,

)