Abstract: The emergency spillway of Shuifeng hydropower station was built in 1942. As poor design and low construction quality, it was partly ruined in the flood discharge in 1946. Rehabilitation was carried out during 1955～1958, and till now, it has been in operation for more than 50 years. Combined with related data, the safety of the emergency spillway was analysed and appraised.

摘要： 水丰备用溢洪道于1942 年建成，由于设计、施工质量等问题，1946 年放流时部分被冲毁，1955～1958 年进行恢复和改建，改建后至今已运行50 多年。本文根据现场检查和有关资料对其进行安全性分析和评价。