Proserpina Dam located in the administrative territorial entity Mérida
The Proserpina Dam is a Roman gravity dam in Mérida, Extremadura, Spain, dating to the 1st or 2nd century AD.  It was built as part of the infrastructure which supplied the city of Emerita Augusta with water.
After the fall of the Roman Empire, the Milagros aqueduct leading to the city fell into decay, but the earth dam with retaining wall is still in use.Conservation
It is also part of the Archaeological Ensemble of Mérida, an UNESCO World Heritage Site since 1993.
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