Autoroute 1
Autobunn 1
Autoroute de Trèves
Route information
Part of E44
Length	36.203 km (22.496 mi)
Existed	1969–present
History	Completed: 23 September 1996
Major junctions
Western end	Croix de Gasperich for Luxembourg City, A3, A6
Major intersections	Kirchberg Luxembourg Airport Munsbach Mertert Wasserbillig
Eastern end	Sauer Valley Bridge & Bundesautobahn 64 for Trier
Location
Country	Luxembourg
Highway system
Motorways in Luxembourg

The Autoroute 1, abbreviated to A1 or otherwise known as the Trier motorway (Luxembourgish: Tréierer Autobunn, French: Autoroute de Trèves), is a motorway in Luxembourg. It is 36.203 kilometres (22.496 mi) long and connects Luxembourg City, in the south, to Wasserbillig, in the east. A few hundred metres to the north of Wasserbillig, it reaches the German border, whereupon it becomes the A64, which leads to Trier.

Originally a connection from Luxembourg City to Luxembourg Airport, at Senningerberg, in 1969, the A1 was extended in three stages from 1988 to 1992 to connect to the German border. From 1994 to 1996, two more sections were opened, bypassing the south-east of Luxembourg City and connecting the A1 to the Croix de Gasperich, where it meets the A3 (to Dudelange) and A6 (towards Arlon, in Belgium).

In all, the A1 was opened in six separate sections:

• 1969: Kirchberg - Senningerberg
• 6 September 1988: Potaschberg - Wasserbillig
• 11 July 1990: Senningerberg - Munsbach
• 26 June 1992: Munsbach - Potaschberg
• 20 May 1994: Croix de Gasperich - Irrgarten
• 23 September 1996: Irrgarten - Kirchberg^[1]

This article contains a bulleted list or table of intersections which should be presented in a properly formatted junction table. Please consult this guideline for information on how to create one. Please improve this article if you can. (November 2021)

Junctions and structures
	Croix de Gasperich	A 3 / A 6
	Howald Tunnel
	Victor Bodson Bridge
(J7)	Hamm / Sandweiler	N 2
	Cents Tunnel
	Neudorf Viaduct
/ (J8)	Kirchberg / Grunewald Junction	N 51 / A 7
(J9)	Senningerberg / Airport
(J10)	Cargo Centre
(J11)	Munsbach
	Syre Viaduct
(J12)	Flaxweiler
(J13)	Potaschbierg	N 1
(J14)	Mertert
(J15)	Wasserbillig
/	Wasserbillig services
	Border with Germany	A 64

Wikimedia Commons has media related to A1 (Luxembourg).

• (in French) Administration des Ponts et Chaussées