Greek National Road 57 (), abbreviated as the EO57, is a national road in northern Greece. The EO57 runs within the Drama regional unit, from Drama to the border crossing with Bulgaria near : however, the border crossing itself was turned into a tunnel in 2005.
Route
The EO57 is officially defined as a north–south road within the Drama regional unit: the EO57 runs between the city of Drama to the south and the border with Bulgaria near to the north, passing through Kato Nevrokopi. The border crossing itself became a tunnel on 9 December 2005. The EO57 connects with the EO12 in western Drama.
History
Ministerial Decision G25871 of 9 July 1963 created the EO57 from the old EO45, which existed by royal decree from 1955 until 1963, and followed the same route as the current EO57. Border controls with Bulgaria, at the northern end of the National Road, were abolished on 1 January 2025 when Bulgaria fully joined the Schengen Area.
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