Classes of water heights and flow velocities on the PPRI 2013 Dordogne and tributaries to La Chapelle Saint Géraud — Corrèze

L_INFO_PPRN_20100007_S_019
Classes of water heights and flow velocities on the PPRI 2013 Dordogne and tributaries to La Chapelle Saint Géraud — 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.

L_INFO_PPRN_20100007_S_019：2013年科雷兹省境内多尔多涅河及其支流至拉沙佩勒-圣-热罗河段的水位与流速分级数据集

科雷兹省利乌尔德尔地区阿尔让塔流域多尔多涅河及其支流的自然洪水风险预防规划（PPRI）

自然防洪规划依据《法国环境法典》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的范围，以避免加剧风险；对于可获批建设及布设设施的区域，则明确相应的实施规范。

2013年10月30日获批的多尔多涅河流域及其从阿尔让塔至利乌尔德尔的支流防洪规划（PPRI），覆盖15个市镇（每个市镇对应一份PPRI）。涉及河流包括多尔多涅河、马罗讷河、苏维涅河、萨涅河、菲莱尔河、马尔法尔热河、梅努瓦尔河与塞鲁河。本次灾害风险通过建模分析得出：苏维涅河、萨涅河与菲德勒河以有记录以来最强历史洪水（1960年10月洪水事件）为基准洪水，多尔多涅河、马罗讷河、马尔法尔热河、梅努瓦尔河与塞鲁河则以百年一遇计算洪水为基准洪水。本规划的规制目的为防范洪水对人员与财产造成的风险，据此将无洪水风险区域划分为三类：红色（不可建设）、深蓝色（可在满足经济活动相关条件下建设）与蓝色（可在满足相关条件下建设）。

本次覆盖的15个市镇各对应一份PPRI，分别为：多尔多涅河畔阿尔让塔、欧特法日、拉沙佩勒-圣-热罗、福尔热、圣尚、多尔多涅河畔蒙索、下巴西尼亚克、雷加德、谢奈耶-马谢、布里夫扎克（已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、阿斯泰亚克与利乌尔德尔。