Kotmale Dam

The Kotmale Dam is a large hydroelectric and irrigation dam in Kotmale, Sri Lanka. The dam generates power from three 67 MW turbines, with a total 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]

• 
  Downstream view of the 87m tall dam
• 
  Closeup of spillways
• 
  Gamini Dissanayake Reservoir

Kotmale Dam
Right bank of the dam, with spillways
Location of Kotmale Dam in Sri Lanka
Country	Sri Lanka
Location	Kotmale
Coordinates	07°03′39″N 80°35′50″E
Purpose	Power
Status	Operational
Construction began	February 1979 (1979-02)
Opening date	August 1985 (1985-08)
Owner(s)	Mahaweli Authority
Dam and spillways
Type of dam	Embankment dam
Impounds	Kotmale Oya
Height (foundation)	87 m (285 ft)
Length	600 m (1,969 ft)
Spillways	3
Reservoir
Creates	Gamini Dissanayake Reservoir
Kotmale Power Station
Coordinates	07°07′41″N 80°34′42″E
Operator(s)	Ceylon Electricity Board
Turbines	3 × 67 MW
Installed capacity	201 MW
Annual generation	450 GWh
Website https://www.mahawelicomplex.lk/power-stations/kot/

See also

• List of power stations in Sri Lanka
• List of dams and reservoirs in Sri Lanka
• Upper Kotmale Dam
• Kadadora Vihara