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Finnish national road 1
Valtatie 1, Riksväg 1
Route information
Part of
Maintained by the Finnish Transport Agency
Length	165 km (103 mi)
Major junctions
From	Helsinki
To	Turku
Location
Major cities	Espoo, Lohja, Salo
Highway system
Highways in Finland

The Finnish national road 1 (Finnish: Valtatie 1 or Ykköstie; Swedish: Riksväg 1) is the main route between the major cities of Helsinki and Turku in southern Finland. It runs from Munkkiniemi in Helsinki to the VI District of Turku, and is part of the European route E18. The road is a motorway for its whole length.

The first portion of the motorway was constructed in the 1960s between central Helsinki and Kehä III, and extended to Lohjanharju in the 1970s. In the other end of the road, the motorway stretches from eastern Turku to Lahnajärvi near Suomusjärvi. In 2005, a portion of motorway between Lohjanharju and Lohja was opened. The last part of the motorway (Lahnajärvi–Lohjanharju) was opened on January 28, 2009. This part of motorway contains five tunnels totalling 5.2 kilometres (3.2 mi). The longest tunnel (2,230 m or 7,320 ft, double-bore) is also the second longest road tunnel in Finland.

Route

National road 1

The road passes through the following localities:

• Helsinki


• Espoo


• 
  Kirkkonummi (Veikkola)


• Vihti


• Lohja


• Nummi-Pusula


• Salo


• Paimio


• Kaarina


• Turku

External links

• 
  Media related to National road 1 (Finland) at Wikimedia Commons


• 
  Finnish national road 1 at the Finnish Road Administration.