瑞安天井片为温州境内有名的洪涝灾害区。自从珊溪水利枢纽工程建成后,大大减轻了天井洪涝灾害。但2005年第5号台风“海棠”期间,瑞安境内暴雨如注,天井又出现严重的洪涝灾害,洪水位高,内涝时间长也是历史罕见。经过调查分析,与境内河道淤积,56省道妨碍排涝,飞云江仙降至宝香河段河道泄洪能力差等因素有关。 Ryan patio sheet for the well-known flood in Wenzhou area. Since the completion of the Shanxi Water Control Project, greatly reduced the patio floods. However, typhoon No. 5 in 2005 during the “Begonia”, heavy rains in Shui On Note, the patio there have been serious floods, high floods, waterlogging is also a long history of rare. After investigation and analysis, it is related to factors such as siltation in the riverway, prevention of drainage in the 56th provincial highway, poor flood discharge capacity of the river from Feiyunjiang to Baoxiang reach.