Victoria () From Wikipedia, the free encyclopedia

Victoria Dam is an arch dam located 130 mi (209 km) upstream of the 's mouth and 4 mi (6 km) Victoria Dam from Teldeniya. Its main purposes are irrigation and hydroelectric power production. It is the tallest dam in Sri Lanka, and supports a 210 MW , the largest hydroelectric power station in the country. Construction of the dam commenced in 1978, and was ceremonially completed by then-President Jayewardene in April 1985.

Contents The dam on 15 April 2011. Three days after its 26th anniversary of opening. 1 History 2 Dam and powerhouse 3 See also 4 References

History

The Victoria Dam was constructed under the Accelerated Mahaweli Development Programme (AMDP). The project had been in planning for 30 years but was accelerated in 1977 to address economic difficulties within the country. The plan is designed to irrigate 365,000 ha (901,935 acres) of land and provide 600 MW of electricity. The Victoria Dam was originally proposed in 1964 after studies were completed by Canada's Huntings Technical Services and a team from the United Nations Development Program—Food and Agriculture Organization (UNDP-FAO).[1] Construction of the dam was inaugurated on 14 August 1978, by the then- President Jayewardene with implementation of the main Location of Victoria Dam structures beginning in 1980. Its completion was marked by a Country Sri Lanka ceremony on 12 April 1985. Construction of the dam and Location Teldeniya tunnel was completed by the British Joint Venture of Balfour Beatty and Edmund Nuttall, while Costain Group carried out Coordinates 07°14!29"N 80°47!05"E the construction of the power station.[2] The consultant Purpose Power engineers on the project was Sir Alexander Gibb & Status Operational [3] Partners. The dam resettled about 30,000 people — four Construction began 14 August 1978 times the estimate.[4] Opening date 14 April 1985

Dam and powerhouse Dam and spillways Type of dam Arch dam The dam measures 122 m (400 ft) tall, with a crest length of Impounds Mahaweli River 520 m (1,706 ft), crest width of 6 m (20 ft), and a base width of 25 m (82 ft). The dam creates the Victoria Reservoir, Height (foundation) 122 m (400 ft) which has a surface area of 22.7 km2 (8.8 sq mi), gross Length 520 m (1,706 ft) storage capacity of 722,000,000 m3 (2.55 × 1010 cu ft), and a Width (base) 25 m (82 ft) catchment area of 1,869 km2 (722 sq mi).[2] Spillways 8 Spillway capacity 8,200 m3/s (289,580 cu ft/s) Water from the dam is fed to the powerhouse at 07°12!00"N 80°48!21"E via a 5,646 m (18,524 ft) long Reservoir tunnel, which houses three penstocks of 6.2 m (20.3 ft) Creates Victoria Reservoir diameter. These penstocks created a net head of 190 m (623 ft), feeding three 70 MW 12.5 kV turbines, which are Total capacity 722,000,000 m3 capable of generating up to 780 GWh of electrical energy (2.55 × 1010 cu ft) annually. Active capacity 689,000,000 m3

Th dam consists of eight spillways, each with a width and (2.43 × 1010 cu ft) height of 12.5 m (41 ft) and 6.5 m (21.3 ft), which automatically opens when water levels are high. The dam's Catchment area 1,869 km2 (722 sq mi) gates, which needs power only to close, won an award for Surface area 23 km2 (9 sq mi) "Innovative Design in Civil Engineering" by the Institution of Civil Engineers. The total effective width of the spillways is Power station 100 m (328 ft), allowing a maximum discharge of 8,200 m3/s Name Victoria Power Station (289,580 cu ft/s). Two additional low-level sluices at the base Coordinates 07°12!00"N 80°48!21"E of the dam allows the purging of accumulated silts behind the Turbines 3 × 70 MW dam.[2] Installed capacity 210 MW Annual generation 780 GWh

A panoramic view of the Victoria Dam and Reservoir.

See also

List of and reservoirs in Sri Lanka List of power stations in Sri Lanka Wikimedia Commons has List of rivers in Sri Lanka media related to Victoria Dam, Sri Lanka. References 1. "Mahaweli Projects & Programme 1983" (http://pdf.usaid.gov/pdf_docs/PDAAX272.pdf) (PDF). USAID. Retrieved 1 May 2011. 2. "Victoria Dam" (http://www.mahaweli.gov.lk/Other%20Pages/Projects/Victoria.html). Mahaweli Authority of Sri Lanka. Retrieved 25 April 2011. 3. "Victoria Dam and Hydro Electric project" (http://www.cecb.lk/page517480.html). Central Engineering Consultant Bureau. Retrieved 28 October 2012. 4. "Victoria Project: Sri Lanka" (http://www.dfid.gov.uk/Documents/publications1/evaluation/ev392s.pdf) (PDF). UK Department for International Development. Retrieved 1 May 2011.

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Categories: Dams in Sri Lanka Hydroelectric power stations in Sri Lanka Buildings and structures in Central Province, Sri Lanka Dams completed in 1985

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