In Tsengwen Dam Raise Reservoir Water Level Project at Taiwan, the greatest construction risk is the overtopping of the dam by flood when the crest is lowered by excavations. 但在取得成績的同時，也陸續出現了若干座水庫在除險加固完成後或加固過程中發生潰壩的不正常現象，反映病險水庫除險加固工作還存在不可忽視的缺陷。
We will pool resources to basically complete, within two or three years, the upgrading of all largemedium-sizedkey dilapidated small reservoirs in China. 集中力量用兩到三年時間基本完成全國大中型和重點小型病險水庫改造。
