4. Risk management

Local authorities are responsible for taking risk into account in urban planning documents. The State, for its part, is responsible for drawing up natural risk prevention plans (PPR) for the communes most at risk [TBA 250] .

However, riparian owners of non-domestic watercourses also have an essential role to play: they are obliged :

• regular cleaning of the bed, to restore the watercourse to its natural width and depth;

• maintain the banks belonging to them;

• remove...