D1 motorway (Slovakia)

D1 Motorway
Diaľnica D1
Completed        Under construction        Planned
Route information
Part of E50 E58 E75 E571
Length	512 km (318 mi) Completed: 402 km (250 mi) Under Construction: 28.4 km (17.6 mi) Planned: 87.7 km (54.5 mi)
Major junctions
From	D2 Bratislava - Pečna
Major intersections	R7 Bratislava - Nivy D4 Bratislava - South R1 Trnava R2 near Chocholná R6 Púchov, South D3 near Hričovské Podhradie R3 near Martin R3 near Likavka (planned) R1 near Ružomberok (planned) R4 Prešov, West R4 near Košické Oľšany
To	M08 border with Ukraine (planned)
Location
Country	Slovakia
Regions	Bratislava Region, Trnava Region, Trenčín Region, Žilina Region, Prešov Region, Košice Region
Major cities	Bratislava, Trnava, Trenčín, Žilina, Martin, Poprad, Prešov, Košice
Highway system
Highways in Slovakia
→ D2

D1 motorway is an east-west motorway (Slovak: Diaľnica D1) in Slovakia. The D1 motorway is the oldest, longest and busiest^{[citation needed]} motorway in Slovakia, which is connects Bratislava with Trnava, Trenčín, Žilina, Martin, Poprad, Prešov, Košice to the Slovak-Ukrainian border (border crossing with Uzhhorod), where it is connected to the Ukrainian road M08.

It is part of the European roads E50, E58, E75, E442, E571 and of the V.A Pan-European corridor (Trieste) - Bratislava - Žilina - Košice - Uzhhorod - Lviv. With the exception of sections in Bratislava, a vignette is required to use the motorway.^[1]

The motorway has been under construction since 1972 and by 2023, 395.9 km of the total planned length of 512.4 km were operational. Despite the various completion dates set in the past (1990, 2000, 2005, 2010 or 2013), the full length will not be passable until 2040 at the earliest.^[2][3] The construction of the motorway is particularly challenging in the hilly terrain between Žilina and Ružomberok^{[according to whom?][citation needed]}.