Lake Marathon or the Marathon Reservoir (Greek: Λίμνη Μαραθώνος [Limni Marathónos] or Λίμνη Μαραθώνα [Limni Marathóna]) is a water supply reservoir formed from the construction of Marathon Dam at the junction of Charadros and Varnavas Torrents near the town of Marathon, Greece. It was the primary water supply for Athens from 1931, when it became operational, until 1959. In 1959 water from Lake Yliki became available, and water from Mornos Reservoir became available in 1981.Plan your Marathon Lake visit and explore what else you can see and do in Marathon using our Marathon journey maker tool.
The area of the lake at the height of the spillway of the dam is 2.45 square kilometres, the maximum depth is 54 m, the lake concentrates water from a drainage basin of 118 square kilometres with an average runoff of 14,400,000 m³ per year in an average rainfall of 580 mm per year, the average inbound volume is 12,000,000 m³ per year and the maximum reservoir capacity is 41,000,000 m³ (effective volume 34,000,000 m³).
The dam has a maximum height (from foundation to crest) of 54 m, a maximum width of 28 m at the base and 4.5 m at the crest. Its length is 285 m. The crest is 227 m above sea level, the toe is 173 m above sea level, and the spillway is 223 m above sea level. The spillway disgorges 520 m³/s. The dam is constructed from concrete and is a gravity dam. It is unique worldwide because its external cladding of white pentelikon marble is the same marble used in construction of the Parthenon and the other buildings in the Acropolis. The dam was constructed by the American firm ULEN (which had, in a BOT type contract, the ownership of the water supply company of Athens until 1974). It was constructed to meet the increased water demand caused by the rapid population increase in the Athens area following the huge influx of refugees from Asia Minor during and after the end of Greco-Turkish War (1919–1922). The construction lasted from 1926 to 1929.
Marathon Lake reviews
Went there to run the great Authentic Greek Classic Marathon. Great views, great scenery and above all, the feelings, running a route over 2 000 year old!
Nice place with amazing landscape.
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4 days in Athens BY A USER FROM GERMANY October, popular sights Preferences: October Attraction style: Popular sights Pace: Medium 60 days in Athens BY A USER FROM LEBANON October, popular sights Preferences: October Attraction style: Popular sights Pace: Medium 4 days in Marathon BY A USER FROM GREECE July, popular sights Preferences: July Attraction style: Popular sights Pace: Medium 8 days in Marathon & London BY A USER FROM UNITED KINGDOM July, popular sights Preferences: July Attraction style: Popular sights Pace: Medium 18 days in Marathon BY A USER FROM CANADA October, popular sights Preferences: October Attraction style: Popular sights Pace: Medium 1 day in Marathon BY A USER FROM HONG KONG SAR CHINA February, popular sights Preferences: February Attraction style: Popular sights Pace: Medium