Marathon Dam, Gravity dam in Marathon, Greece.
The Marathon Dam spans 285 meters in length and rises 54 meters high, featuring white Pentelic marble cladding on its concrete structure.
Construction of the Marathon Dam began in 1926 to address water supply needs following the influx of refugees into Athens after the Greco-Turkish War.
A replica of the Athenian Treasury temple from Delphi stands at the base of the dam, connecting modern infrastructure with ancient Greek heritage.
The reservoir created by the dam maintains a capacity of 41 million cubic meters and continues to supply water to Athens through the EYDAP system.
The Marathon Dam marked the first documented case of seismic activity associated with reservoir filling, with notable tremors recorded in 1931 and 1938.
Location: Marathonas Municipality
Inception: 1926
Official opening: 1929
Height: 54 m
Length: 285 m
Width: 4.5 m
GPS coordinates: 38.16694,23.90528
Latest update: May 14, 2025 06:52
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