Brilliant Dam is a hydroelectric dam on the Kootenay River near Castlegar, British Columbia, Canada. It was built during the Second World War, mostly by Doukhobour men exempt from military service, and its 129 MW twin turbines first came into operation in June, 1944. The Columbia Power Corporation purchased the dam from Teck Cominco in 1996. Brilliant Dam is 42.6 metres high, with a net hydraulic head of 28 metres, and eight sluice gates. In 2000 work began to increase flow and upgrade the generating units. Upon completion, its four turbines generate a combine 145 MW of electricity.