Abstract: Cipancuh dam, one of the oldest dams in Indonesia, is located on the Cipancuh River, in the district of Indramayu, West Java Province, Indonesia. As an old dam, it faces deterioration due to climatic conditions, both of the embankment and the appurtenant structure. Another important thing to note is the extreme changes in flow characteristics due to changes in the condition of the catchment area. Based on the calculation of the rate of sediment, predicted age of the dam is still 81 years from now. So the existence of this dam must be maintained. However, downstream of the dam, there is a small town with a population of around 200 000 people whose safety is threatened if the dam is not managed properly. Based on the study, Cipancuh Dam is classified as a very high hazard dam. The activities undertaken to maintain the existence of this dam are: repair the dam body, repair buildings complement, provide additional spillway capacity, and installation of a new monitoring instrument, as well as enhanced monitoring by utilizing available technology. So, it is necessary to improve the capability of the dam as well improve the safety of dam.

摘要： Cipancuh大坝是印度尼西亚最古老的水坝之一，位于印度尼西亚西爪哇省南安由地区的Cipancuh河上。作为一座老坝，大坝（包括土坝和附属建筑物）承受着由于气候条件导致的恶化。另一个需要注意的重要事项是，流域条件的变化引起了水流特性的极端变化。基于沉积率的计算，预测大坝服役年限仍有81年，因此必须对大坝加以维护。大坝下游有一小城镇，人口约20万，若大坝管理不当，下游人民的生命财产安全将受到严重威胁。根据这项研究，Cipancuh大坝被评定为高风险大坝。大坝的维护包括：维修坝体、维修配套建筑物、加大溢洪道泄洪能力、安装新的监测仪器以及使用现有技术加强监测等。总之，有必要改善大坝性能以提高大坝的安全性。

关键词: Cipancuh大坝, 地质条件, 维护, 补强加固