Eupalinos ( grc, Εὐπαλῖνος) or Eupalinus of

Megara Megara (; el, Μέγαρα, ) is a historic town and a municipality in West Attica, Greece. It lies in the northern section of the Isthmus of Corinth opposite the island of Salamis Island, Salamis, which belonged to Megara in archaic times, befo ...

was an

ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

engineer Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the l ...

who built the

Tunnel of Eupalinos The Tunnel of Eupalinos or Eupalinian aqueduct ( el, Ευπαλίνιον όρυγμα, translit=Efpalinion orygma) is a tunnel of length running through Mount Kastro in Samos, Greece, built in the 6th century BC to serve as an aqueduct. The tunn ...

Samos Island Samos (, also ; el, Σάμος ) is a Greek island in the eastern Aegean Sea, south of Chios, north of Patmos and the Dodecanese, and off the coast of western Turkey, from which it is separated by the -wide Mycale Strait. It is also a separate r ...

in the 6th century BC. The tunnel, presumably completed between 550 and 530 BC, is the second known tunnel in history which was excavated from both ends and the first with a methodical approach in doing so. Being also the longest tunnel of its time, the

is regarded as a major feat of ancient engineering. It was constructed for the tyrant

Polycrates of Samos Polycrates (; grc-gre, Πολυκράτης), son of Aeaces, was the tyrant of Samos from the 540s BC to 522 BC. He had a reputation as both a fierce warrior and an enlightened tyrant. Sources The main source for Polycrates' life and activit ...

, and was a remarkable long. It brought water to the city, passing through limestone at the base of a hill; this tunnel still exists. The Greek historian

Herodotus Herodotus ( ; grc, , }; BC) was an ancient Greek historian and geographer from the Greek city of Halicarnassus, part of the Persian Empire (now Bodrum, Turkey) and a later citizen of Thurii in modern Calabria ( Italy). He is known f ...

describes the tunnel briefly in his '' Histories'' (3.60) and calls Eupalinos of Megara its architect: Eupalinos is considered the first

hydraulic engineer Hydraulic engineering as a sub-discipline of civil engineering is concerned with the flow and conveyance of fluids, principally water and sewage. One feature of these systems is the extensive use of gravity as the motive force to cause the mov ...

in history whose name has been passed down. Apart from that, though, nothing more is known about him.Tom Apostol, p.33 A large

road tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...

, named after Eupalinos has been recently built under the

Geraneia Geraneia Mountains or Yerania Ori ( el, Γεράνεια Όρη) are a mountain range in Corinthia and West Attica, Greece. Its highest point is the peak ''Makryplagi'' ( el, Μακρυπλάγι), elevation 1,351 m. It covers the northern part of ...

mountains in

Corinthia Corinthia ( el, Κορινθία ''Korinthía'') is one of the regional units of Greece. It is part of the region of Peloponnese. It is situated around the city of Corinth, in the north-eastern part of the Peloponnese peninsula. Geography Cori ...

, to facilitate the new

expressway Expressway may refer to: * Controlled-access highway, the highest-grade type of highway with access ramps, lane markings, etc., for high-speed traffic. * Limited-access road, a lower grade of highway or arterial road. *Expressway, the fictional s ...

connection between

Athens Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital and largest city of Greece. With a population close to four million, it is also the seventh largest city in the European Union. Athens dominates ...

and

Corinth Corinth ( ; el, Κόρινθος, Kórinthos, ) is the successor to an ancient city, and is a former municipality in Corinthia, Peloponnese, which is located in south-central Greece. Since the 2011 local government reform, it has been part o ...

. Eupalinos tunnel is the longest of three subsequent tunnels of the same width at this expressway.

References

External links

Dan Hughes: The Tunnel of Eupalinos

The Eupalinian aqueduct by the Greek Ministry of Culture
__NOTOC__ {{authority control 6th-century BC Greek people Ancient Greek architects Ancient Greek engineers Ancient Megarians Year of birth unknown Year of death unknown

See also

References

Further reading

External links