This layer represents the strongest expansion zones in Côte d’Or (modelled Q100, historical floods, PPR reference floods, HGM).
For the same watercourse, several zonings may exist. It is then necessary to refer to the study or mapping for more information.
This layer was formed by agglomeration of these spatial data. The genealogy of objects varies as well as their accuracy, ranging from 1/5000 for modelling during PPR to 1/25000 for historical flooding.
This layer is continuously updated.
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