Simple download service (Atom) of the dataset: FNIPP millennial hazard zone of the mancelle agglomeration

The PGRI Loire-Bretagne asks the PPRI to map, if possible, a vintage flood of occurrence.
This is an informative mapping, but the regulation refers to it when a project is linked to a sensitive establishment. The submersion height criterion is the only criterion that characterises the hazard.

卢瓦尔-布列塔尼洪水风险管理机构（PGRI Loire-Bretagne）请求洪水风险预防规划（PPRI）尽可能对某次典型历史洪水事件开展制图工作。该制图仅为参考性成果，但当项目涉及敏感设施时，相关监管规定将以此作为依据。淹没高度标准是表征该洪水风险的唯一判定准则。