Mratinje Dam
Mratinje Dam is a concrete arch-gravity dam in the canyon of the Piva River in Montenegro.
![dam](http://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Plu%C5%BEine%2C_p%C5%99ehrada_Mratinje%2C_hr%C3%A1z.jpg/200px-Plu%C5%BEine%2C_p%C5%99ehrada_Mratinje%2C_hr%C3%A1z.jpg)
Mratinje Dam was completed in 1975. The building of the dam resulted in flooding of Piva canyon and creating Piva Lake, with its 112.5 km² making it the second largest lake in Montenegro.
The dam is 200 m high—one of the highest in Europe. The dam is 268 m long and 4.5 m thick at the crest, while it is 30 m long and 36 m thick at the base. The foundations go as much as 38 m into the ground. 820,000 m³ of concrete and 5 million kg of steel were built into the dam.
The hydroelectic power station at Mratinje is capable of producing 800 million kilowatt-hours.
The location of the 16th century Piva Monastery was flooded by the lake, so while the dam was built, the monastery was cut in pieces and moved to a higher ground, 3.5 km away. It was reconstructed in the original way.