Abstract: Cracks were observed at the roller compacted concrete dam of Kubia Hydropower Project. The evaluation indicated that factors causing these cracks include differential temperature inside the dam and ambient environment, concrete contraction due to the hydration, selfdeformation and the external constraint. The paper discusses these factors and crack mitigation as well as prevention measures are proposed. The results indicate that these measures are satisfactory.

Key words: Roller Compacted Concrete Gravity Dam, Crack Classifications, Crack Causing Factors, Crack Treatment