Classified watercourse (for the crossing of migratory fish)

Watercourses or part of rivers and canals entered into a list set by decree, after collaboration with the Departemental Councils made within six months after their seizin. Any new structure built on these watercourses must have a device ensuring adequate sediment transport and movement of migratory fish, and the operator has to take care of the operation and maintenance of this device. Existing structures shall comply with those provisions, without compensation, within a period of five years from the publication of a list of migratory species per basin or sub-basin set by the Minister for Freshwater Fishing, and if necessary, by the Minister for the Sea