 The first sections made were the Kirchberg - Senningerberg sections of the A1 motorway and Pontpierre - Esch-sur-Alzette / Lallange sections of the A4 motorway.They were put into service in 1969, quickly followed by the A3 (Luxembourg - Dudelange) and A6 motorways towards Arlon.In later 1980s and beginning of 1990s sections I to III of the A1 motorway to Trier (coming from the German border at Wasserbillig) were finalized, joining the A6 motorway by the Croix de Gasperich bypassing Luxembourg City in the south-east.