Kadadora Vihara (Also known as Kadadora Sri Priyabimbaramaya Vihara) was a Buddhist temple, situated in Kadadora, Nuwara Eliya District, Sri Lanka. The temple was abandoned and ruined as the construction of Kotmale Dam in 1979 by the Mahaweli Development program. The ruins of Vihara still can be seen when the water level of the Kotmale Reservoir is low, but the sight is very rare.

It is said that about 57 villages and 54 religious places in Kotmale were submerged with the completion of the reservoir in 1985. Except for Kadadora Vihara other shrines including Thispane Vihara, Morape Devalaya, Othalawa Vihara, Pattini Devalaya and Medagoda Vihara were said to have gone underwater when the reservoir was built.

Reference – Wikipedia