The Gazivoda Dam, officially the Ujman Dam, is a rock-filled embankment dam on the Ibar River in the District of Mitrovica, Kosovo. It was completed in 1979 and forms Gazivoda Lake, the largest reservoir in Kosovo. The dam supports a hydroelectric power station which is located at its base. It has an installed capacity of 35 MW. Gazivoda Lake covers 11.9 km2 (4.6 sq mi) of which 2.7 km2 (1.0 sq mi) are in Serbia. At 101 m (331 ft) in height, it is also the tallest dam in Kosovo.