A3
Dutch: Autosnelweg 3 French: Autoroute 3
Route information
Part of E25 E40 E42
Maintained by the Roads and Traffic Agency of the Brussels-Capital Region, Flemish government and Walloon Government
Length	134 km (83 mi)
Major junctions
West end	R21 / N23 in Brussels
Major intersections	19 Evere N294 20 Kraainem R22 Sint.-Stevens-Woluwe junction R0 21 Steenokkerzeel/Sterrebeek N227 22 Tervuren N3 Leuven junction E314 / A2 23 Haasrode-Blanden/Waver N25 24 Boutersem N234 25 Tienen N29 26 Jodoigne/Orp-Jauche N222 / N279 27 Huy/Lincent N64 28 Hannuit/St-Truiden N80 28a Geer N615 29 Waremme N69 30 St-Georges-s/M N614 31 Loncin junction E25 / A602 / E42 / A15 32 Alleur 33 Rocourt/Tongres N20 Vottem junction E313 / A13 / N655 A601 / E313 / A13 34 Hermée 35 Oupeye N671 Cheratte junction E25 / A25 36 Blégny N604 / N642 37 Herve N3 Battice junction E42 / A27 / N3 / N648 37bis Thimister-Clermont unnumbered 38 Eupen/Welkenraedt N67 39 Aachen-Süd/Eynatten N68 40 Lichtenbusch
East end	A 44 at German border near Aachen
Location
Country	Belgium
Highway system
Highways of Belgium Motorways National Roads

The A3 is a Belgian motorway (mainly classified as the E40) extending from the east of Brussels (Boulevard Reyers), through Leuven, onwards to Liège. Just past the ring of Liège, the motorway continues to Verviers, Eupen and the German border.

The section between Liège (intersection of Hauts-Sarts) and the German border is part of the King Baudouin Motorway (Baldwin König Autobahn in German and Koning Boudewijnsnelweg in Dutch). Crossing the Hesbaye (French) or Haspengouw (Dutch), the Walloon section between Leuven and Liège is named the Hesbignonne.

• 
  The A3 near Sint-Stevens-Woluwe
• 
  The A3 near Herve.
• 
  Viaduct of Cheratte.
• 
  Exit 39 - Eynatten.
• 
  Exit 38 - Eupen.
• 
  The A3 near the intersection with the E42.
• 
  The A3 in the direction of Aachen, Germany.
• 
  The A3 at the level of the Viaduct of Ruyff.