Height of Kotmale reservoir dam to be elevated by 30 metres | Daily News

Height of Kotmale reservoir dam to be elevated by 30 metres

State Minister of Mahaweli Zone Canals, and Settlement Infrastructure Development Siripala Gamlath reviewing the map of the proposed project.
State Minister of Mahaweli Zone Canals, and Settlement Infrastructure Development Siripala Gamlath reviewing the map of the proposed project.

The Government has planned to elevate the height of the Kotmale Reservoir Dam by 30 metres thereby increasing the existing water capacity of the reservoir. This intends to irrigate more arable lands in the Anuradhapura and Puttalam districts of the Mahaweli 'H' Zone thereby increasing the paddy cultivation and other agricultural crops, says State Minister of Mahaweli Zone Canals, and Settlement Infrastructure Development Siripala Gamlath.

State Minister Gamlath was speaking during an inspection tour of the Kotmale reservoir complex on November 3.

In addition to the existing supply of water to the Anuradhaura and the Puttalam districts, this project is meant to provide extra water supply to the two districts. Accordingly, more water will be issued via the penstock at Polgolla reservoir to Bowatenna irrigation reservoir thereby intensifying the capacity of the irrigation tanks of Kalawewa, Rajangana wewa, Dambulu Oya and Kandalama.

The Kotmale reservoir project was set up under the Accelerated Mahaweli Development Scheme in 1979. A dam was built across the Kotmale Oya at Kadadora and constructed a reservoir at a cost of Rs.9,000 million and its operation commenced in 1985. "Under the new project to raise the height of the reservoir dam by 30 metres, the water capacity of the Kotmale reservoir will increase to 391 million cubic metres from its current capacity of 174 million cubic metres, Engineer in charge of the Kotmale reservoir," R.M.S. Wathsala said. The Kotmale Hydropower turbine currently generates 210MW and it could be increased to 240MW when the height of the dam is elevated by 30 metres, Engineer Wathsala said. The length of the current reservoir dam is 600 metres and its height is 87 metres.

Secretary of the State Ministry of Mahaweli Zone Canals and Settlement Infrastructure Development, Engineer W.B. Palugaswewa, Director General of the Sri Lanka Mahaweli Authority, Engineer Sunil S. Perera and Residential Enterprise Manager of the Mahaweli 'E' Zone, Gamini Gunawardana participated.