|Location||District Gombong, Kebumen, Central Java Province|
|Purpose||Power, water supply, flood control, recreation|
|Dam and spillways|
|Type of dam||Embankment, rock-fill|
|Height||58 m (190 ft)|
|Total capacity||56,900,000 m3 (46,100 acre·ft)|
|Surface area||43 km2 (17 sq mi)|
|Turbines||1 x 1 MW Francis-type|
|Installed capacity||1 MW|
Sempor Dam is an embankment dam on the Sempor River in District Gombong, Kebumen, Central Java Province, Republic of Indonesia. In addition to being a tourist attraction Sempor Dam is a source of irrigation water for farmers. It helps irrigate thousands of paddy fields in the delta. It also provides for flood control and has a 1 MW hydroelectric power station at its base. Construction on the dam started in 1967 but in the same year water from flash floods over-topped it, causing the dam to fail. The wave of water killed over 2,000 people downstream and delivered widespread damage to the area. Construction later restarted on the dam and it was completed in 1978. Its power station was later commissioned in 1980.
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