Bili-Bili Dam

Bili-Bili Dam

Bili-Bili Reservoir, South Sulawesi
Location of Bili-Bili Dam in Indonesia
Country Indonesia
Location Makassar, Gowa Regency, South Sulawesi
Coordinates 5°16′35.70″S 119°34′50.09″E / 5.2765833°S 119.5805806°E / -5.2765833; 119.5805806Coordinates: 5°16′35.70″S 119°34′50.09″E / 5.2765833°S 119.5805806°E / -5.2765833; 119.5805806
Purpose Irrigation, power, flood control
Status Operational
Construction began 1991
Opening date 1998 (1998)
Dam and spillways
Type of dam Embankment, rock-fill
Impounds Jeneberang River
Height 73 m (240 ft)
Length 1,800 m (5,900 ft)
Reservoir
Total capacity 375,000,000 m3 (304,000 acre·ft)
Power station
Commission date 2005
Type Conventional
Turbines 1 x 12.75 MW
1 x 6.5 MW[1]
Installed capacity 19.25 MW
Annual generation 69,000 MWh
This article is about the dam in Indonesia. For the China-based video sharing website, see Bilibili.

The Bili-Bili Dam is located in Gowa Regency, South Sulawesi, Indonesia, on the Jeneberang River, about 30 km from the city of Makassar. It serves several purposes to include flood control, irrigation and hydroelectric power generation. The dam was constructed between 1991 and 1998.

Background

In 1981, Bili-Bili Dam was added to the Jeneberang River Comprehensive Development Project. Construction began in 1991 and the dam was completed in 1998. The weirs downstream of the dam and their accompanying irrigation canals were completed in December 2005. The dam's power station was commissioned in 2005 as well.[2] The project was built with funding and cooperation from the Japan International Cooperation Agency. It has several purposes to include municipal water supply for the city of Makassar, about 30 km away, and to protect the city from historic flooding. It is designed prevent an estimated 50-year flood. Water from its reservoir also helps irrigate about 23,786 ha (58,780 acres) of rice fields in Gowa and Takalar regencies.[3] The power station has an installed capacity of 19.25 MW and generates about 69,000 MWh of electric power each year.[3][1]

Sedimentation in the reservoir has been a concern since at least 2004. The dam is downstream from Mount Bawakaraeng, which is "prone to landslides."[4] A large landslide in 2004 prompted a request for survey assistance to the Japanese government to determine the possible impact on the dam.[5]

Design

The Bili-Bili Dam is a 1,800 m (5,900 ft) long and 73 m (240 ft) tall rock-fill type. Its reservoir holds 375,000,000 m3 (304,000 acre·ft) of water.[6] Below the dam are three weirs, the Bili-Bili, Bissau and Kampili. They connect to 61.2 km (38.0 mi) of primary canals and 228.1 km (141.7 mi) of secondary canals. The Bili-Bili weir covers about 2,444 ha (6,040 acres) of farmland while the Bissau covers 10,795 ha (26,680 acres) and Kampili 10,547 ha (26,060 acres).[2]

References

  1. 1 2 "List of Major Works For Power Plant" (PDF). PT. Wasa Mitra Engineering. p. 5. Retrieved 26 July 2014.
  2. 1 2 "Bili-Bili Irrigation Project" (PDF). Japanese International Cooperation Agency. 2008. Retrieved 26 July 2014.
  3. 1 2 Indonesia - Indonesia-9: Kali Tuntang - Indonesia-10: Jeneberang River (PDF). p. 76. Retrieved 2014-07-25.
  4. ↑ Yuli Tri Suwami (2009-04-02). "Govt urged to boost man-made dams supervision". The Jakarta Post. Retrieved 2014-07-25.
  5. ↑ JICA Urgent Survey Group on the Large-Scale Landslide at Mt. Bawakaraeng. "Report on the Large-Scale Landslide at Mt. Bawakaraeng in Sulaweso" (PDF). Manuscript for the Journal of “SABO”. Retrieved 2014-07-25.
  6. ↑ Andi Hajramurni (2010-05-21). "Makassar dam threatened by sediment, experts say". The Jakarta Post. Retrieved 2014-07-25.

External links

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