The Dibis Dam was constructed between 1960 and 1965 as part of the larger Kirkuk Irrigation Project for the irrigation of 300,000 ha of land. The dam has a capacity of 4,000 cms through the spillway and 278 cms through the head regulator (diversion to the Kirkuk Irrigation Project). Inflow is from Dokan Dam, approximately 140 km upstream. In 1984 the dam failed due to heavy outflows from the Dokan Dam. The fuse-plug that allows the emergency spillway to work did not erode because heavy sediment had built up behind it. Repairs were carried out by China International Water and Electric Cooperation between October 1985 and March 1987.