The main intention of this study is identifying the causes of hydraulic failure of Zana Micro-rnEmbankment dam with emphasize on seepage. The selected area is found in Amhara Nationalrnregional state, North Gonder zone, East Belesa woreda. The dam is located on Zana River,rntributary of the Tekeze River.rnEven though the study area has been selected based on the available data as compared with thernother problem area, to attain the primary objective of the research the available data is so limited.rnThe work has delt with a unidirectional investigation. Seepage analysis and filter media design ofrnthe dam which has been stated in the design document were thoroughly investigated.rnDarcyâ€™s law-phreatic line, flow Net and SEEP/W software model are used to analyze the quantityrnof seepage through homogeneous and zoned dam, without the provision of filter material. Thernflow net diagram is drawn with help of AutoCAD soft ware aided by free hand sketching for bothrncases.rnThe expected quantity of seepage estimated with these different methods relatively resemblesrneach other. The maximum seepage through the dam as per the SEEP/W software model analysisrnthat includes foundation seepage is 7.06*10-3 cm3/sec. This value is compared with the quantityrnof seepage estimated at the designed document that is 7.31*10-2cm3/sec. Therefore, the designrndocument has no problem of quantifying the expected quantity of seepage. However, the drainagernsystem is not properly designed at the design document. To this end, failurity of seepage at the d/srnface of the dam which are threatening the dam stability are expected to result from improper filterrnmedia design. Even though, the dam has a problem data on construction history, this studyrnanalyze with the help of field investigation, the cause of seepage failurity at side of spillway duernto poor construction quality.rnTo alleviate the problem grouting, impervious blanketing and d/s berming are the proposedrnremedial measures for seepage and leakage failures.