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Tuyamuyun Hydro Complex

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Title: Tuyamuyun Hydro Complex  
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Tuyamuyun Hydro Complex

THC Main Dam
Tuyamuyun Hydro Complex is located in Uzbekistan
Location of THC Main Dam
Official name Tuyamuyun Hydroengineering Complex
Country Uzbekistan/Turkmenistan
Location Urgench, Xazorasp District, Xorazm Region/Dasoguz, Lebap Region
Coordinates
Purpose Irrigation, power
Status Operational
Construction began 1969
Opening date 1983 (1983)
Dam and spillways
Type of dam Gravity
Impounds Amu Darya River
Height 25 m (82 ft)
Length 141 m (463 ft)
Reservoir
Creates Channel Reservoir
Total capacity 2,300,000,000 m3 (1,900,000 acre·ft)
Surface area 303 km2 (117 sq mi)
Max. length 102 km (63 mi)
Normal elevation 130 m (430 ft)
Power station
Commission date 1983
Turbines 6 x 25 MW
Installed capacity 150 MW
Annual generation 571 GWh[1]

The Tuyamuyun Hydro Complex (THC) is a system of four interconnected reservoirs and a series of canals on the lower Amu Darya River, bordering Uzbekistan and Turkmenistan. Its primary purpose is to provide water for irrigation in Xorazm, Karakalpakstan and Daşoguz regions of Uzbekistan, Turkmenistan and as far north as Kazakhstan.[2] The complex is located about 74 km (46 mi) southeast of Urgench in Xorazm Region, Uzbekistan and about 2 km (1.2 mi) north of Gazojak in Lebap Region, Turkmenistan.[3] It was constructed between 1969 and 1983. Aside from irrigation, the complex also provides water for industrial and municipal uses. A 150 MW power station on the main dam contains six 25 MW hydroelectric turbine-generators.[4]

The main dam (THC Main Dam) is located on the Amu Darya, straddling the border of Uzbekistan and Turkmenistan. It is the center-piece of the complex. The main dam is a 141 m (463 ft) long and 25 m (82 ft) long gravity dam. It creates the Channel Reservoir which has a storage capacity of about 2,300,000,000 m3 (1,900,000 acre·ft) and length of 102 km (63 mi). Water from the Channel Reservoir can be fed into the adjacent Kaparas and Sultansanjar Reservoirs for later use. The Sultansanjar Reservoir is connected via a canal to the Koshbulak Reservoir which lies just east. When first completed, all four reservoirs had a capacity of about 7,800,000,000 m3 (6,300,000 acre·ft) but due to silt build-up, this had been reduced to about 6,700,000,000 m3 (5,400,000 acre·ft) by 2001. A system of canals off the main dam supply a network of irrigation canals to the various regions for irrigation.[2]

References

  1. ^ "Building of Small HPP-2 at Andijan water basin". United Nations CDM. 3 February 2010. Retrieved 15 January 2015. 
  2. ^ a b Qi, edited by Jiaguo; Evered, Kyle T. (2008). Environmental problems of Central Asia and their economic, social and security impacts. Dordrecht, the Netherlands: Springer. pp. 284–287.  
  3. ^ Olsson, edited by Oliver; Bauer, Melanie (2010). Interstate water resource risk management : towards a sustainable future for the Aral Basin (JAYHUN). London: IWA Publishing. pp. 87–90.  
  4. ^ "Irrigation and Drainage Systems in Khorezm, Uzbekistan" (PDF). Zentrum für Entwicklungsforschung Center for Development Research. December 2011. p. 9. Retrieved 15 January 2015. 
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