Classes of water heights and flow velocities on the PPRI 2013 Dordogne and tributaries to Forgès — Corrèze

L_INFO_PPRN_20100009_S_019
Classes of water heights and flow velocities on the PPRI 2013 Dordogne and tributaries to Forgès — 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_20100009_S_019
2013年多尔多涅河及福尔热支流流域（科雷兹省）水位与流速分级
科雷兹省利乌尔德尔境内阿尔让塔流域的多尔多涅河及其支流自然洪水风险防治规划（PPRI）方案
自然洪水风险防治规划依据《环境法典》第L.562-1条制定。在洪水风险暴露区域，规划将根据风险强度划定禁止建设与布设设施的区域，以避免加剧洪水风险；对于可获批建设及布设设施的区域，则明确相关实施要求。
2013年10月30日获批的多尔多涅河及其支流（阿尔让塔至利乌尔德尔段）洪水风险防治规划（PPRI）共覆盖15个市镇，每个市镇对应一份独立的PPRI。本次涉及的河流包括多尔多涅河、马罗讷河、苏维涅河、萨涅河、菲莱尔河、马勒法尔热河、梅努瓦尔河以及塞鲁河。
本次洪水风险基于模型推演得出。参考洪水事件选取标准如下：苏维涅河、萨涅河与菲莱尔河采用有记录以来的最强历史洪水（1960年10月洪水）；多尔多涅河、马罗讷河、马勒法尔热河、梅努瓦尔河以及塞鲁河则采用百年一遇计算洪水。
本规划的管控目标为防范洪水对人员与财产造成的风险。为此，洪水管控区域按要求划分为三类：红色区域（禁止建设）、深蓝色区域（可在满足经济活动相关条件下进行建设）以及蓝色区域（可在满足相关条件下进行建设）。
本次规划覆盖的15个市镇分别为：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、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、阿斯泰亚克以及利乌尔德尔。