Kotmale Dam

Last updated
Kotmale Dam
UG-LK Photowalk - 2018-03-24 - Kotmale Dam (4).jpg
Right bank of the dam, with spillways
Sri Lanka relief location map.jpg
Red pog.svg
Location of Kotmale Dam in Sri Lanka
Country Sri Lanka
Location Kotmale
Coordinates 07°03′39″N80°35′50″E / 7.06083°N 80.59722°E / 7.06083; 80.59722 Coordinates: 07°03′39″N80°35′50″E / 7.06083°N 80.59722°E / 7.06083; 80.59722
Purpose Power
StatusOperational
Construction beganFebruary 1979 (1979-02)
Opening dateAugust 1985 (1985-08)
Owner(s)Mahaweli Authority
Dam and spillways
Type of dam Embankment dam
Impounds Kotmale Oya
Height (foundation)87 m (285 ft)
Length600 m (1,969 ft)
Spillways 3
Reservoir
CreatesGamini Dissanayake Reservoir
Kotmale Power Station
Coordinates 07°07′41″N80°34′42″E / 7.12806°N 80.57833°E / 7.12806; 80.57833
Operator(s) Ceylon Electricity Board
Turbines 3 × 67 MW
Installed capacity 201 MW

The Kotmale Dam is a large hydroelectric and irrigation dam in Kotmale, Sri Lanka. The dam generates power from three 67 MW turbines, totalling the installed capacity to 201 MW, making it the second largest hydroelectric power station in Sri Lanka. Construction on the dam began in August 1979 and was ceremonially completed in February 1985. [1] The dam forms the Kotmale Reservoir, which was renamed to Gamini Dissanayake Reservoir on 11 April 2003 following a request by Prime Minister Ranil Wickramasinghe. [2] [3]

See also

Related Research Articles

Gamini Dissanayake Sri Lankan politician

Dissanayake Mudiyanse Ralahamilage Lionel Gamini Dissanayake, PC was a prominent Sri Lankan politician, a powerful minister of the United National Party, and Leader of the Opposition. He was designated as the UNP candidate in the 1994 presidential election, but was then assassinated by the Liberation Tigers of Tamil Eelam (LTTE).

Victoria Dam (Sri Lanka) Dam in Teldeniya

Victoria Dam is an arch dam located 130 mi (209 km) upstream of the Mahaweli River's mouth and 4 mi (6 km) from Teldeniya. Its main purposes are irrigation and hydroelectric power production. It is the tallest dam in Sri Lanka, and supports a 210 MW power station, 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.

Electricity sector in Sri Lanka

The electricity sector in Sri Lanka has a national grid which is primarily powered by hydro power and thermal heat, with sources such as photovoltaics and wind power in early stages of deployment. Although potential sites are being identified, other power sources such as geothermal, nuclear, solar thermal and wave power are not used in the power generation process for the national grid.

Upper Kotmale Dam Dam in Talawakele, Nuwara Eliya

The Upper Kotmale Dam is located in Talawakele, within the Nuwara Eliya District, in the Central Province of Sri Lanka. The dam feeds the third largest hydroelectric power station in the country.

Broadlands Dam Dam in Kitulgala

The Broadlands Dam is a 35 MW run-of-the-river hydroelectric complex currently under construction in Kitulgala, Sri Lanka. The project is expected to be completed in 2020, and will consist of two dams, and a power station further downstream.

Randenigala Dam Dam in Rantembe, Central Province

The Randenigala Dam is a large hydroelectric embankment dam at Rantembe, in the Central Province of Sri Lanka. Construction of the dam began in November 1982, and was completed in approximately 4 years. The dam and power station was ceremonially opened by then President J. R. Jayawardene in 1986.

Kalu Ganga Dam Dam in Pallegama

The Kalu Ganga Dam is a large gravity dam, and the second vital component of the larger and more complex Moragahakanda — Kalu Ganga Project, currently under construction across the Kalu Ganga at Pallegama, in the Matale District of Sri Lanka. Construction of the project was launched by President Mahinda Rajapaksa on 25 January 2007. The maiden waters of the dam was released in July 2018.

Bowatenna Dam Dam in Bowatenna

The Bowatenna Dam is a 100 ft (30 m) high gravity dam at Bowatenna, in the Naula, Central Province of Sri Lanka. The dam was built in June 1981, and is used primarily for irrigation. A 40 MW power station is also constructed 5,800 ft (1,800 m) downstream, for hydroelectric power generation.

Castlereigh Dam Dam in Hatton, Central Province

The Castlereigh Dam is a gravity dam built across the Kehelgamu Oya, a major tributary to the Kelani River, approximately 3 km (1.9 mi) south-west of Hatton, in the Central Province of Sri Lanka.

Polgolla Barrage Dam in Polgolla, Central Province

The Polgolla Barrage, is a barrage built across the Mahaweli River at Polgolla, in the Central Province of Sri Lanka. The barrage is used to increase the volume of water, for transfer to the hydroelectric power station located 8 km (5 mi) north, via penstock.

Norton Dam Dam in Norton Bridge,Central Province

The Norton Dam is a gravity dam built across the Kehelgamu Oya, which is a major tributary to the Kelani River. The dam is built at Norton Bridge, in the Central Province of Sri Lanka.

Laxapana Dam Dam in LaxapanaCentral Province

The Laxapana Dam is a gravity dam built across the Maskeliya Oya, 2.8 km (1.7 mi) downstream of the Laxapana Falls, in the Central Province of Sri Lanka.

Kukule Ganga Dam

The Kukule Ganga Dam is a 110 m (360 ft) gravity dam built across the Kukule River in Kalawana, Sri Lanka. The run-of-river-type dam feeds an underground hydroelectric power station located approximately 5 kilometres (3.1 mi) away, via tunnel.

Udawalawe Dam Dam in Udawalawe

The Udawalawe Dam is a large irrigation dam in Udawalawe, in the Southern Province of Sri Lanka. The dam consists of an embankment section and a gravity section, combining the total dam length to approximately 3.9 km (2.4 mi). The dam is also used for hydroelectric power generation, powering three 2 MW units, commissioned in April 1969.

Gal Oya Dam Dam in Gal Oya National Park

The Gal Oya Dam is an embankment dam in the Uva Province of Sri Lanka. The dam creates one of the largest and most iconic reservoirs in the country, the Gal Oya Reservoir. Water from the reservoir is used primarily for irrigation in the Uva and Eastern provinces, in addition to powering a small hydroelectric power station. Construction of the dam and reservoir began in August 24, 1949, completing four years later in 1953.

Nilambe Dam Dam in Nilambe, Central Province

The Nilambe Dam is a small hydroelectric dam build across the Nilambe River, measuring approximately 70 m (230 ft) in length. Water from the Nilambe Dam is transferred to the 3.2-megawatt Nilambe Power Station through a penstock measuring approximately 2.8 km (1.7 mi). The power station consists of two 1.6 MW generating units, which were commissioned in July 1988.

The Moragolla Dam is a planned hydroelectric dam in Moragolla, Sri Lanka. The dam is to be 35 m (115 ft) high and is planned to create the 1,980,000 m3 (70,000,000 cu ft) Moragolla Reservoir with a maximum supply level at 548 m (1,798 ft) MSL. Upon completion, the Moragolla Power Station would have a gross installed capacity of 30 megawatts from two francis turbines, capable of generating approximately 85 GWh annually.

Mudiyanselage Andrew Dissanayake was a Ceylonese businessman, landholder and politician.

References

  1. "Kotmale Dam". Archived from the original on 8 May 2011. Retrieved 21 April 2011.
  2. Thenabadu, Sunil (18 October 2009). "A visionary politician who played the game as it should be played". The Sunday Times . Retrieved 25 August 2018.
  3. Thenabadu, Sunil (22 October 2015). "Superlative revelation of a supreme politician". Daily News . Retrieved 25 August 2018.