Darbandichan Dam

from Wikipedia, the free encyclopedia
Darbandichan Dam
Darbandikhan Dam USACE NWD.jpg
Tributaries: Tanjero, Diyala
Drain: Diyala
Major cities nearby: Darbandichan
Darbandichan Dam (Iraq)
Darbandichan Dam
Coordinates 35 ° 6 '46 "  N , 45 ° 42' 23"  E Coordinates: 35 ° 6 '46 "  N , 45 ° 42' 23"  E
Data on the structure
Lock type: Rockfall dam
Construction time: 1956-1961
Height of the structure crown: 495  m
Power plant output: 249 MW
Operator: Iraqi Ministry of Water Resources
Data on the reservoir
Water surface 113 km²
Total storage space : 3 000 000 000  m³
Catchment area 17th 850  km²

The Darbandichan Dam is a dam in the Autonomous Region of Kurdistan in Iraq .

description

The overflow channel and the Diyala / Sirwan river

The dam is 128 meters high and 445 meters long. Three generators operated by Francis turbines each produce 83 megawatts of power. With a nominal output of 249 megawatts, the plant is the second largest hydropower plant in the Autonomous Region of Kurdistan after the Dukan Dam . In addition to generating electricity, the dam is also used for irrigation of agricultural areas and flood protection.

history

The dam was built in the years 1956–1961 as a rock embankment dam with a clay core near the place Darbandichan . The Darbandichan reservoir is fed by the Tanjero and Sirwan / Diyala rivers.

The original two generators, each with an output of 800 kilowatts, were replaced in 1983. However, the new electricity-generating systems did not go into operation until 1990 due to delays in completing the connection to the national electricity grid. Due to the Second Gulf War , the construction company left the power plant in 1990 and only released one of the turbines for operation. Nevertheless, all three turbines were put into operation, which caused problems with considerable cavitation . There were also landslides on the lake about 100 meters above the dam.

The World Bank had extensive repairs carried out on the dam in 2006–2013, which increased the efficiency of the system from 60 to 80 percent of the nominal output .

During the Kermanshah earthquake in November 2017, boulders fell on the overflow channel and cracks formed in the upper area of ​​the dam. The Government of Iraq has around 2.5 million dollars provided for repairs to the dam, the regional government of Iraqi Kurdistan 844,000 US dollars. The European Union is also said to have pledged aid for this. The investigation into the damage is being carried out by a joint team from the Iraqi Ministry of Water Resources and the World Bank. To avoid further damage, the water level in the reservoir is kept low. The start of the repair work is planned for May 2018.

ecology

The reservoir provides a habitat for 56 different bird species and 26 species of fish. Local residents report that wild goats are said to live in the area of ​​the lake . In 2009 the rare Euphrates softshell turtle was observed here.

One problem is water pollution from waste and untreated sewage in the Tanjero River, which has already led to the death of fish in the lake several times .

Others

The lake is used as a local recreation area and for inland tourism.

Web links

Commons : Darbandichan Dam  - Collection of Images

Individual evidence

  1. ↑ a b World Bank (Ed.): Consultancy Services for Dokan and Derbendikhan Dam Inspection Report (Final) . July 31, 2006 (English, online on the World Bank website (DOC; 4.55 MB)).
  2. ^ A b Elizabeth Ingram: Deadly Iran-Iraq earthquake damages Darbandikhan Dam. In: www.hydroworld.com. November 13, 2017, accessed November 18, 2017 .
  3. ↑ a b Darbandikhan. In: bot.gov.krd. Tourist Association of the Autonomous Region of Kurdistan, 2015, accessed on November 18, 2017 .
  4. ↑ Implementation Status & Results - Iraq - Dokan and Derbandikhan Emergency Hydro Power Project (P099059). (PDF; 38.1 kB) World Bank, July 14, 2016, accessed on November 19, 2017 (English).
  5. ↑ a b International companies to check Darbandikhan dam next week: minister. In: www.nrttv.com. NRT TV , January 12, 2018, accessed on January 27, 2018 (English).
  6. ^ Abadi orders funds for earthquake victims, reconstruction. Rudaw Media Network , November 26, 2017, accessed November 27, 2017 .
  7. ↑ World Bank: World Bank and Ministry of Water Resources evaluate Darbandikhan and Dokan Dams following Iraq quake [EN / AR]. UN Emergency Aid Coordinator , November 27, 2017, accessed November 30, 2017 .
  8. ↑ Darbandikhan Lake (S1). (PDF; 582 kB) In: www.natureiraq.org. June 7, 2013, accessed November 19, 2017 .