Victoria Dam is an arch dam located 130 mi upstream of the Mahaweli River's mouth and 4 mi from Teldeniya. It is named in honor of Queen Victoria.
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 funded by aid granted by the United Kingdom under the patronage of Queen Elizabeth II, and was completed during the time of President Junius Richard Jayewardene and was ceremonially opened by the Prime Minister of the United Kingdom, Margaret Thatcher.
Wikipedia https://en.wikipedia.org/wiki/Victoria_Dam_(Sri_Lanka)
Address Sri Lanka
Coordinates 7°14'28.02" N 80°47'6.568" E