Restricted zone of the flood risk prevention plan (PPRI) of the median Vienna, section Chauvigny – Cenon-sur-Vienne
Description
For natural PPRs, the environmental code defines two categories of zones (L562-1): areas exposed to risk and areas that are not directly exposed to risks but where measures may be planned to avoid aggravating the risk.
Depending on the hazard level, each area is subject to an enforceable settlement. The mid-Vienna PRIP has two regulatory areas:
— red zone,
— blue zone.
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