St-Malo Marine Submersion Risk Prevention Plan Water Line Ranks — Scenario 2100 — Ille-et-Vilaine (35)

The Saint-Malo Marine Submersion Risk Prevention Plan was approved by order of the Prefect dated 18 July 2017. The SMPP is a regulatory document designed to improve the safety of people and property in the face of the risks of marine submersion. As a priority, it aims not to increase risks and to reduce vulnerability in the perimeters it covers, both from the point of view of future urbanisation and the construction and use of the territory. The dimensions of the water line defined for item 2100 are expressed in the reference French altimeter system in NGF IGN 69, i.e. in metres in the official leveling network in metropolitan France, which is attached to the Marseille tide gauge. These are relative height dimensions that do not correspond to a height of water but rather to the altimetry of the water body per 50 cm slice. Constructive arrangements are provided for new constructions related to compliance with 2100. Links to the State Site in Ille-et-Vilaine: http://www.ille-et-vilaine.gouv.fr/Politiques-publiques/Environnement-Risques-naturels-et-technologiques/Risques-naturels/Les-Plans-de-Prevention-des-Risques-de-Submersion-Marine/Submersion-marine-a-Saint-Malo.圣马洛海洋淹没风险预防计划（Saint-Malo Marine Submersion Risk Prevention Plan）已于2017年7月18日经法国省长令批准。 SMPP（即圣马洛海洋淹没风险预防计划）是一份法定规范性文件，旨在提升民众与财产在面临海洋淹没风险时的安全保障水平。作为核心优先目标，该计划旨在杜绝风险升级，并从未来城市化进程、国土开发与利用的维度，降低其覆盖范围内的风险脆弱性。 为2100号条目所划定的水位线尺寸，采用法国NGF IGN 69官方高程基准系统进行标注，即以法国本土官方水准测量网络中的米为单位，该网络以马赛验潮站作为高程基准原点。 此类尺寸为相对高程值，并非对应实际水体的绝对高度，而是以每50厘米为间隔分段的水体高程基准。 针对需满足2100号条目合规要求的新建建筑，已配套制定相应的建设处置细则。 相关链接可访问伊勒-维莱讷（Ille-et-Vilaine）省政府官方网站：http://www.ille-et-vilaine.gouv.fr/Politiques-publiques/Environnement-Risques-naturels-et-technologiques/Risques-naturels/Les-Plans-de-Prevention-des-Risques-de-Submersion-Marine/Submersion-marine-a-Saint-Malo.