Kedung Ombo Dam

Kedung Ombo Reservoir is one of the major reservoirs in Indonesia. It is located on the border of three regencies in Central Java Province namely Grobogan Regency, Sragen Regency and Boyolali Regency precisely in District Geyer, Grobogan District. The main dam of Kedungombo Reservoir is located on the border of Rambat Village and Juworo Village, Geyer Sub-District , Grobogan District. This reservoir uses Serang River as its main source of water for a moment with the Uter / Sungai Kombo / Banjaran River. Other water sources are supplied from several large and small rivers that supply water to Kedungombo Reservoir, including Braholo River, Central River, Nglanji River, Tapen River and Sambas River.[2]

Kedung Ombo Dam
Location of Kedung Ombo Dam in Indonesia
CountryIndonesia
LocationCentral Java, Indonesia
Coordinates
StatusOperational
Construction began1985
Opening date1991
Dam and spillways
Type of damEmbankment, rock-fill with watertight core
ImpoundsSerang River
Height96 m (315 ft)
Length1,600 m (5,249 ft)
Reservoir
Total capacity6,880,000,000 m3 (5,577,707 acre⋅ft)[1]
Power Station
Operator(s)PT Indonesia Power
Commission date1991
Installed capacity22.5 MW

Development

In 1985 the government planned to build a new reservoir in Central Java for a 22.5 Megawatt (MW) power plant and could accommodate water for the surrounding 70 Hectare rice fields. The construction of Kedungombo Reservoir is funded by USD 156 million from the World Bank, USD 25.2 million from Japan Exim Bank, and APBN, starting from 1985 until 1989. The reservoir began to be irrigated on January 14, 1989. Cangkupan puddle reservoir reaches 6,576 hectares (Waters 2,830 hectares and land area 3.746 hectares) by drowning 37 villages, 7 districts in 3 districts, namely Sragen, Boyolali, Grobogan. A total of 5,268 families at that time lost their land due to the construction of this dam. This reservoir was finally inaugurated by President Soeharto, May 18, 1991. Events refusal of displacement and resettlement of residential location by residents because the land will be used as Reservoir Kedungombo because the small amount of compensation is given known as Kedung Ombo Case.

Utilization
  • Irrigation: With a pool area of ± 4,500 Ha and a normal water reservoir volume of 723 million M3, Kedungombo Reservoir is able to irrigate more than 60 thousand hectares of agricultural land in Grobogan District , Demak Regency , Kudus Regency , Pati Regency and Jepara Regency . The area is served from three weirs along the Kali Serang of Bendore Sidorejo, Bend Sedadi and Klambu Dam, which is a river that has been used as a channel to drain the water of Kedungombo Reservoir since the first of January 14, 1989 until now. For irrigation water needs served by taking into account the effect of water availability on other rivers downstream of the reservoir and also calculated the lateral flow of the Water Catchment Area (DTA) on the regulating gates of the Bend.
  • Hydro Power Plant (Hydropower)
  • Fishery
  • Tourism
  • Prevent flood
  • Water reservoir

See also

References
  1. "Kapasitas Saluran Air Menurun, Waduk Kedung Ombo Direhabilitasi". Kompas. Retrieved 5 October 2017.
  2. "RI prepares for worst as El Niño causes prolonged dry season". The Jakarta Post. Retrieved 5 October 2017.
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