Classes of water heights and flow velocities of the PPRI 2013 Dordogne and tributaries in Reygade — Corrèze

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Classes of water heights and flow velocities of the PPRI 2013 Dordogne and tributaries in Reygade — Corrèze

Plans for the prevention of natural flood risk PPRI of the Dordogne basin and its tributaries of Argentat in Liourdres (15 communes) in Corrèze

Natural PPRs are established in accordance with Article L. 562-1 of the Environmental Code. In exposed areas, depending on the intensity of the risk, they shall define the prohibition zones for constructions and installations in order not to aggravate the risk, or, in areas where constructions and installations may be authorised, the implementation requirements.

The PPRi of the Dordogne basin and its tributaries from Argentat to Liourdres, approved on 30/10/2013, cover 15 municipalities (one PPRi per municipality). The rivers concerned are Dordogne, Maronne, Souvigne and Sagne and Filèle, Malefarge, Ménoire and Cerou. The hazard is derived from a modeling. The reference flood is the strongest history known for Souvigne, Sagne and Fidèle (crue of October 1960) and the centennial flood calculated for Dordogne, Maronne, Malefarge, Ménoire and Céroux. The purpose of the regulations is to prevent the risk to people and property. For this purpose, the flood-free territory is classified as red (inconstructible), dark blue (constructable under conditions for economic activities) or blue (constructible under conditions)

A PPRi is established for each municipality, i.e.: Argentat-sur-Dordogne, Hautefage, La-Chapelle-Saint-Géraud, Forgès, Saint-Chamant, Monceaux-sur-Dordogne, Bassignac-le-Bas, Reygades, Chenaillers-Mascheix, Brivezac (merged with Beaulieu-sur-Dordogne), Beaulieu-sur-Dordogne, Nonards, Altillac, Astaillac and Liourdres.

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2013年多尔多涅河及其支流在科雷兹省雷加德的水位与流速等级

多尔多涅流域及其在科雷兹省利乌尔德尔的阿尔让塔支流的自然洪水风险防治规划（PPRI）方案（涉及15个市镇）

自然防洪风险规划（PPR）依据《环境法典》第L.562-1条制定。在风险暴露区域，规划将根据风险强度划定禁止建设与设施布设区域，以避免加剧风险；对于可获批建设与设施布设的区域，则明确相关实施要求。

2013年10月30日获批的多尔多涅流域及其从阿尔让塔到利乌尔德尔的支流防洪风险规划（PPRI），覆盖15个市镇（每个市镇对应一份PPRI）。涉及的河流包括多尔多涅河、马罗讷河、苏维涅河、萨涅河、菲勒勒河、马尔法尔热河、梅努瓦尔河以及塞鲁河。该洪水风险源自模型推演：参考洪水采用苏维涅河、萨涅河与菲代勒河有记录以来的最强历史洪水（1960年10月洪灾），以及多尔多涅河、马罗讷河、马尔法尔热河、梅努瓦尔河与塞鲁河的百年一遇设计洪水。本法规的目的是防范对人员与财产的风险，为此将无洪泛区域划分为三类：红色（禁止建设）、深蓝色（可在满足经济活动相关条件下建设）以及蓝色（可在满足相关条件下建设）。

每个市镇均制定了对应的PPRI，具体包括：多尔多涅河畔阿尔让塔、奥特法日、拉沙佩勒-圣热罗、福尔热、圣沙芒、多尔多涅河畔蒙索、巴西尼亚克勒巴、雷加德、谢奈耶-马谢、布里夫扎克（与多尔多涅河畔博略合并）、多尔多涅河畔博略、诺纳尔、阿尔蒂亚克、阿斯泰亚克以及利乌尔德尔。