The Tibi Dam (in Spanish embalse de Tibi) is a masonry dam on Monegre River about three kilometres (two miles) south of Tibi in Valencian Community, Spain. It is one of the oldest non-Roman dams in Europe. It was constructed between 1579 and 1594 with the purpose of using its reservoir to help irrigate areas around Tibi. A spillway was constructed on the right side of the dam in 1697 after it partially failed due to flooding.[2]