Floodplain (ÜSG)

Floodplains (ÜSG) are areas that are flooded in the event of flooding of an above-ground body of water. The establishment of the SPAs is carried out on the basis of different criteria (Water Act § 65). The following shall be considered as defined flood plains without any further determination being necessary: - areas between surface waters and dams or high banks, - areas where a flood event is statistically expected to occur once every 100 years, and - areas claimed for flood relief or retention on the basis of a plan approval or plan approval. Furthermore, SPAs may be defined by statutory instrument. The use in the SPA is restricted by water law requirements (Water Budget Act § 78 and § 78 a+c). Further information can be obtained from the lower water authorities in the city and districts.洪泛平原（Floodplains，ÜSG）指地表水体发生漫溢时被淹没的区域。专项洪水防护区（SPAs）的划定需遵循多项判定标准，依据为《水法》第65条。 以下情形无需额外判定即可认定为已划定的洪泛平原： - 地表水体与堤坝或高岸之间的区域； - 经统计预期每百年发生一次洪水灾害的区域； - 依据规划审批文件划定用于洪水缓解或滞洪的区域。 此外，专项洪水防护区可通过法定文书予以划定。 该专项洪水防护区内的土地使用需遵守水法相关规定（《水预算法》第78条及第78条a+c款）。更多相关信息可向各市及区县的下级水行政主管部门咨询获取。