A-20 (Quebec)

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Hitching the A-20

Legend: Verygood.png (very good) | Good.png (good) | Average.png (average) | Bad.png (bad) | Senseless.png (senseless)

The A-20, known as Autoroute 20 and officially named Autoroute Jean-Lesage is one of the oldest highway infrastructure of Canada. You might indeed notice it when transiting through this major way that connects Montreal to Quebec city by the south shore of the St-Lawrence river further West becoming the H-401 in Ontario towards Toronto and stretching further East into Gaspesia and nearly connecting New Brunswick which can be reached by continuing on the Route 185 and becomes the Route 2 in New Brunswick.

The A-20 is part of the Transcanadian Highway in nearly all of its length with exception of the part West of Montreal.

Section West - Ontario border Montreal Metropolitan

In Monteregie and Montreal Metropolitan

While in Montreal and Montreal Metropolitan leaving the area, the A-20 connects on Monteregie Island with the A-40 by taking either the A-13 - A-15 or A-25 northwards for a few km. Around the International Airport of Dorval, the Autoroute Cote de Liesse (A-520) act as a connector between the A-20, the international airport and the A-40.

It also crosses the path of other major highways such as the A-10 towards the Estrie Townships and the A-30 which act as a By-Pass to the Southern Montreal Metropolitan (In Construction). The A-20 crosses officially the St-Lawrence onto Montreal on the 'Pont Champlain' together with the A-10 and the A-15. Although the 'Lafontaine Tunnel' marks the end of the A-25 to become the A-20 Westbound and the 'Pont Jacques-Cartier' as well as the 'Pont Victoria' goes direct from the A-20 on the St-Lawrence South Shore to downtown Montreal.


  • Begins in Rivière-Beaudette, border of Ontario
    • Continue westward as H-410 towards Toronto
    • As Remembrance Highway/Autoroute du Souvenir
  • Parking.png (Eastbound)
  • (2) Ramp.png (Route 325 to Route 338 – Riviere-Beaudette, Saint-Télesphore)
  • (6) Ramp.png (Chemin Saint-Thomas)
  • (9) Ramp.png (Saint-Zotique, Saint-Polycarpe, Saint-Télesphore)
  • (12) Ramp.png (Les Coteaux)
  • (14) Ramp.png (Route 201 south – Pont Monseigneur Langlois, Salaberry-de-Valleyfield)
  • (17) Ramp.png (Route 201 north – Saint-Clet, Coteau-Du-Lac)
  • (19) Ramp.png (Chemin Saint-Emmanuel)
  • (22) Ramp.png (Chemin Saint-Dominique)
  • Trucking Weight Balance (Eastbound)
  • (26) Ramp.png (Saint-Lazare, Les Cèdres)
  • (29) Autobahn junction.png Junction Connector A-540 (A-540 to A-40 / H-417 – Ottawa, Montréal)
    • Chance to get on to the highway A-40
  • Crossroad (Route 342 (Route Harwood))
  • Crossroad (Route 338 (Chemin de Lotbinière))
  • Crossroad (Avenue Saint-Henri)

Ottawa River Bridge


  • (35) Ramp.png (Boulevard Cardinal-Lèger - Terrasse-Vaudreuil, Pincourt)
  • Crossroad (Boulevard Don-Quichotte)
  • Crossroad (Boulevard Perrot)
  • Ramp.png (L'Île-Claude, Île-Bellevue)

Galipeault Bridge


  • (39) Ramp.png (Sainte-Anne-de-Bellevue)
  • (42) Ramp.png (Rue Morgan)
  • (45) Ramp.png (Avenue Woodland)
  • (48) Ramp.png (Boulevard Saint-Charles)
  • (49) Ramp.png (Avenue Cartier)
  • (50) Ramp.png (Boulevard Saint-Jean)
  • (51) Ramp.png (Chemin du Bord-du-Lac)
  • (53) Ramp.png (Boulevard des Sources)
  • (54) Ramp.png (Boulevard Pine Beach, Boulevard Fénelon)
  • (56) Autobahn junction.png Junction A-520 - Autoroute Côte-de-Liesse (Avenue Dorval – P.E. Trudeau Airport)
  • (58) Ramp.png (55e Avenue)
  • (60) Autobahn junction.png Junction Autoroute Chomedey A-13
  • (61) Ramp.png (Rue Norman)
  • (62) Ramp.png (1re Avenue, Rue St-Jacques - Saint-Pierre)
  • (63) Ramp.png (Route 138 west – LaSalle, Pont Mercier)
  • (64) Ramp.png (Route 138 east (Rue Saint-Jacques))
  • (67) Ramp.png (Rue Notre Dame, Boulevard Angrignon)
  • (68-N) Autobahn junction.png Junction Autoroute Décarie A-15
  • (63) Autobahn junction.png Junction Autoroute Ville-Marie A-720 (Montréal Centre-ville)
  • (62) Ramp.png (Boulevard de la Vérendrye - Verdun)
  • (61) Ramp.png (Avenue Atwater, Rue Saint-Patrick)
  • (60) Autobahn junction.png Junction Autoroute Bonaventure A-10
  • (58) Autobahn junction.png Junction Autoroute Bonaventure A-10
  • (57) Ramp.png (Île des Soeurs)

Pont Champlain


  • (58) Autobahn junction.png Junction Champlain Bridge South A-10
  • Ramp.png (Boulevard Rome)
  • Autobahn junction.png Junction A-15
  • Ramp.png (Boulevard Marie-Victorin)
  • (1) Ramp.png (Boulevard Simard)
  • (3) Ramp.png (Route 112 (Boulevard Laurier) – Pont Victoria, Montréal)
  • (6) Ramp.png (Avenue Notre-Dame)
  • (7) Ramp.png (Boulevard Lafayette)
  • (8) Ramp.png (Route 134 (Boulevard Taschereau) – Pont Jacques-Cartier, Montréal)
  • (11) Ramp.png (Boulevard Roland-Therrien)

Route 132 east – Boucherville, Varennes


  • Ramp.png (Boulevard Marie-Victorin)
  • (15-o) Autobahn junction.png Junction A-25/A-40 (Tunnel Louis-H.-Lafontaine, Montréal)
  • (91) Ramp.png (Boulevard Industriel, Rue Métropole)
  • (92) Ramp.png (Boulevard Mortagne)
  • (93) Ramp.png (Rue Nobel)
  • (95) Ramp.png (Boulevard Montarville, Rue de Touraine)
  • (96) Trucking Weight Balance (Westbound)
  • (98) Autobahn junction.png Junction A-30 (A-30 to A-10 – Saint-Hubert Airport, Brossard, Sorel-Tracy, Châteauguay, USA)




Hitching the A-520 - Autoroute Côte-de-Liesse (Montreal Metropolitan)

  • (54) Autobahn junction.png Junction Boulevard Montréal-Toronto A-20
    • End southward into Dorval
    • Chance to get on to the A-20
  • (1) Ramp.png (Aéroport Dorval/Rue Cardinal)
    • Westward access through Frontage road Chemin de la Côte-de-Liesse
  • (2) Ramp.png (43e avenue/55e avenue)
    • Access through Frontage road Chemin de la Côte-de-Liesse
  • (3) Ramp.png (43e avenue/32e avenue) (Eastward)
  • (4) Autobahn junction.png Junction Autoroute Chomedey A-13
    • Access through Frontage road Chemin de la Côte-de-Liesse
  • (5) Ramp.png (Rue Hickmore)
  • (6) Ramp.png (Chemin Dalton/Boul. Cavendish) (Eastward)
  • (7) Ramp.png (Chemin Darnley/Boul. Cavendish)
  • (65) Autobahn junction.png Junction Transcanadienne A-40





Hitching the A-720 - Autoroute Ville-Marie (Montreal)

  • (1-N) Autobahn junction.png Junction Autoroute Décarie A-15 (Northward)
    • Chance to get to the A-20 Eastward
    • Chance to get to the A-15 northwards and the A-40
  • (1-S) Autobahn junction.png Junction A-15A-20 (Southward)
    • Chance to get to Champlain Bridge
    • Chance to get to the A-10 Eastward
    • Chance to get towards New York State on the A-15 South
  • (2) Ramp.png (St-Jacques St.(westbound) / Atwater Ave.(eastbound))
  • (3) Ramp.png (Guy St. (eastbound))

In Tunnel


  • (4) Ramp.png (De La Montagne St.(eastbound only) / Atwater Ave. (westbound only))
  • (5) Autobahn junction.png Junction Autoroute Bonaventure A-10
    • Chance to get to Champlain Bridge via Autoroute 10 (Bonaventure Expressway)
    • Rue University via Mansfield (westbound only - inside tunnel)
  • (6) Ramp.png (St. Laurent Blvd./Berri St.)
  • (7) Ramp.png (Jacques Cartier Bridge/Av.Papineau/De Lorimier Ave. via Notre Dame St.(eastbound only))
  • Crossroad (Jacques Cartier Bridge/Papineau Av.)

End of Tunnel


  • Crossroad (Jacques Cartier Bridge/De Lorimier Ave.)
  • Crossroad (Boul. René-Lévesque Est)

End of A-720

Continue Eastward as Rue Notre-Dame Est


  • Crossroad (Boul. Pie-IX - Route 125)
  • Crossroad (Rue Ste-Catherine Est)
  • Crossroad (Rue Dickson)
  • Crossroad (Rue des Futailles)
    • Access to Tunnel H-Lafontaine - A-25
    • Chance to get to the South shore and join the A-20 Eastward
  • Crossroad (Rue Curateau/De Boucherville)
    • Chance to get to the Route 138/Rue Sherbrooke Est
    • Access to the A-25

Industrial Estates


  • Crossroad (Boul. St-Jean-Baptiste) - Montreal-Est
    • Chance to get to the Autoroute Metropolitaine A-40
    • Chance to get to the Route 138/Rue Sherbrooke Est
  • Crossroad (Rue Sherbooke Est/Route 138)


Section Centre - Montreal Metropolitan to Quebec City Area

In Montérégie, Centre-du-Québec and Chaudière-Appalaches

From Montreal Metropolitan South shore, the A-20 heads eastwards crossing many localities of this vast farmland region. It reaches the junction of the A-55 (coming from the South (Sherbrooke) at Junction 173) just west of Drummondville. The A-55 and A-20 overlap on the same infrastructure for about 30km before it heads back north towards Trois-Rivières from Junction 210.

  • (98) Autobahn junction.png Junction A-30 (A-30 to A-10 – St-Hubert Airport, Brossard, Sorel-Tracy, Châteauguay, USA)
    • Change to A-30 Eastwards to Sorel
    • Change to A-30 leading to the A-10
  • (102) Ramp.png (Ste-Julie, St-Amable, St-Bruno-de-Montarville)
  • (105) Ramp.png (Route 105 – St-Basile-le-Grand, McMasterville)
  • (109) Ramp.png (Rue St-Jean-Baptiste - Beloeil, St-Mathieu-de-Beloeil)
  • (112) Ramp.png (Route 223 (Rue Richelieu) – Beloeil, St-Marc-sur-Richelieu)
  • (113) Ramp.png (Route 133 (Chemin des Patriotes) – Mont-St-Hilaire, St-Jean sur Richelieu)
  • (115) Ramp.png (La Grande-Allée - St-Jean-Baptiste, St-Damase)
  • Autobahn Restaurant.pngParking.png
  • (120) Ramp.png (Route 227 – Ste-Madeleine, St-Jean-Baptiste)
  • (123) Ramp.png (La Présentation, St-Hyacinthe)
  • (130) Ramp.png (Route 137/Route 235 – St-Hyacinthe, Granby, St-Thomas-d'Aquin, St-Denis-sur-Richelieu)
  • (133) Ramp.png (Rue Girouard - St-Hyacinthe)
  • (134) Ramp.png (Rue Yamaska - St-Hyacinthe)
  • (138) Ramp.png (Route 224 – Ste-Rosalie, St-Simon)
  • (141) Ramp.png (Route 116/Route 137 – Ste-Rosalie, St-Hyacinthe, Granby)
  • (143) Ramp.png (St-Valérien-de-Milton)
  • (145) Ramp.png (St-Simon, St-Liboire)
  • (147) Ramp.png (Route 116 east – Upton, Acton Vale)
  • (150) Ramp.png (St-Hugues)
  • (152) Ramp.png (Ste-Hélène)
  • Parking.png (Eastbound)
  • Parking.png (Westbound)
  • (157) Ramp.png (St-Nazaire, Wickham)
  • (160) Ramp.png (Route 239 – St-Eugène, St-Guillaume)
  • (166) Ramp.png (10e Rang de St-Germain)
  • (170) Ramp.png (Route 122 – St-Germain-de-Grantham, Yamaska, Sorel)

Overlap Autoroute A-55


  • (173) Autobahn junction.png Junction A-20 A-55 South
  • (175) Ramp.png (Route 143 north (Boulevard Lemire) – Saint-Bonaventure, Saint-François-du-Lac)
  • (177) Ramp.png (Route 143 south – Saint-Majorique, Drummondville)
  • (179) Ramp.png (Chemin du Golf)
  • (181) Ramp.png (Saint-Charles-de-Drummond, Drummondville, Saint-Joachim-de-Courval)
  • (185) Ramp.png (Route 255 – Baie-du-Febvre, Saint-Cyrille-de-Wendover, Saint-Félix-de-Kingsey)
  • (191) Ramp.png (Sainte-Brigitte-des-Saults)
  • (196) Ramp.png (Route 259 – Nicolet, Sainte-Perpétue, Notre-Dame-du-Bon-Conseil)
  • (200) Ramp.png (Route 155 - Saint-Léonard-d'Aston)
  • (202) Ramp.png (Rang du Moulin-Rouge)
  • (204) Ramp.png (Rang des Cédres, Rang des Plaines)

End of A-55 overlap


  • (215) Ramp.png (Rang des Épinettes)
  • (220) Ramp.png (Route 261 – Bécancour, Daveluyville, Victoriaville)
  • Parking.png (Eastbound)
  • Parking.png (Westbound)
  • (228) Ramp.png (Route 165 (2e Rang de St-Louis-de-Blandford) – Princeville, Plessisville, Thetford Mines)
  • (235) Ramp.png (Route 162 / Route 263 – Lemieux, Princeville, Victoriaville, Saint-Louis-de-Blandford)
  • (243) Ramp.png (Route 218 – Manseau, Les Bequets)
  • (253) Ramp.png (Route 265 – Villeroy, Plessisville, Deschaillons, Notre-Dame-de-Lourdes, Thetford Mines)
  • Parking.png
  • (256) Ramp.png (15e et 16e Rangs de Villeroy)
  • (261) Ramp.png (Val-Alain)
  • (266) Ramp.png (4e et 5e Rangs de Val-Alain)
  • (271) Ramp.png (Joly)
  • (278) Ramp.png (Route 271 – Laurier-Station, Ste-Croix, St-Flavien)
  • (285) Ramp.png (Issoudun)
  • (291) Ramp.png (Route 273 – St-Agapit, St-Apollinaire, St-Antoine-de-Tilly)
  • (296) Ramp.png (Route du Cap)
  • Parking.png (Westbound)
  • (305) Ramp.png (Route 171 – St-Nicolas, St-Étienne, Thetford Mines)
  • (311) Ramp.png (Route 116 – St-Nicolas, St-Rédempteur)
  • Parking.pngAutobahn Restaurant.png (Eastbound)
  • (312) Autobahn junction.png A-73 (Quebec city)
  • (314) Ramp.png (Route 175 – Pont de Québec, Charny, St-Romuald)




Section East - Quebec City Area towards New Brunswick

In Chaudière-Appalaches and Bas-St-Laurent

The A-20 does not get into Quebec city but instead goes along its St-Lawrence southern shore sister city Levis. Just west in the vicnity of Levis there are major off the motorway services with restaurants at Exit 311 and Exit 314. Note that Exit 312 is the motorway junction with the A-73 to cross the St-Lawrence north into Quebec city (through Pierre-Laporte bridge or alternatively through Quebec bridge) or south towards Maine. Bear in mind that Exit 314 also leads to 'Quebec Bridge' which can be crossed by foot.

Further east, the A-20 continues just south of Levis eastwards in direction of New Brunswick and Rimouski.


  • (312) Autobahn junction.png A-73 (Quebec city)
  • (314) Ramp.png (Route 175 – Pont de Québec, Charny, Saint-Romuald)
  • (318) Ramp.png (Route 275 – Saint-Jean-Chrysostome, Saint-Romuald)
  • (321) Ramp.png (Chemin des Îles)
  • (325) Ramp.png (Route 173 to Route 277 – Pintendre, Lac-Etchemin, Lévis)
  • (327) Ramp.png (Route Monseigneur-Bourget)
  • (330) Ramp.png (Route Lallemand)
  • (337) Ramp.png (Route 279 – Beaumont, Saint-Charles, Saint-Damien)
  • (341) Ramp.png (Beaumont, Saint-Charles)
  • Parking.png (Eastbound)
  • Parking.pngAutobahn Restaurant.png (Westbound)
  • (348) Ramp.png (Route 281 – Saint-Michel, La Durantaye)
  • (356) Ramp.png (Saint-Vallier, Saint-Raphaël)
  • (364) Ramp.png (Berthier-sur-Mer, Saint-François)
  • (369) Ramp.png (Saint-Pierre)
  • (376) Ramp.png (Route 228 (Chemin des Poirier) – Montmagny)
  • (378) Ramp.png (Route 283 – Montmagny, Saint-Fabien-de-Panet)
  • (388) Ramp.png (Cap-Saint-Ignace)
  • Parking.png
  • (400) Ramp.png (Route 285 – L'Islet, Saint-Eugène)
  • (414) Ramp.png (Route 204 – St-Jean-Port-Joli, St-Aubert, St-Pamphile)
  • (430) Ramp.png (Route 132 – Saint-Roch-des-Aulnaies, Sainte-Louise)
  • (436) Ramp.png (Route 132 (Avenue Industrielle) – La Pocatière)
  • (439) Ramp.png (La Pocatière, Saint-Onésime)
  • (444) Ramp.png (Route 132 (Avenue de la Grande-Anse) – La Pocatière, Rivière-Ouelle)
  • (450) Ramp.png (Rivière-Ouelle, Saint-Pacôme, Saint-Gabriel)
  • (456) Ramp.png (Route 287 – Saint-Denis, Saint-Philippe-de-Néri, Mont-Carmel)
  • Parking.png
  • (465) Ramp.png (Kamouraska, Saint-Pascal, Saint-Bruno)
  • (474) Ramp.png (Saint-Germain, Sainte-Hélène)
  • (480) Ramp.png (Saint-André, Saint-Joseph)
  • (488) Ramp.png (Route 289 to Route 230 – Saint-Alexandre, Pohénégamook)
  • (496) Ramp.png (Notre-Dame-du-Portage)
  • Parking.png (Eastbound)
  • (499) Ramp.png Autobahn junction.png Junction Route 185/A-85 towards New Brunswick
  • (503) Ramp.png (Route 132 (Rue Fraser) – Rivière-du-Loup)
  • (507) Ramp.png (Route 132 (Boulevard Cartier) Rivière-du-Loup)
  • (514) Ramp.png (Cacouna, Saint-Arsène)
  • Ramp.pngAutobahn junction.png (Route 132)
    • End of A-20/merge and overlap with Route 132

Gap Proposed - projected

  • (527) Ramp.png (Route des Coteau-des-Érables) (In construction)
  • (531) Ramp.png (Route de St-Paul) (In construction)
  • (539) Ramp.png (Route de la Station) (In construction)
  • (548) Ramp.png (Route 293) (In construction)

Gap


As Rimouski By-pass

  • Ramp.pngAutobahn junction.png (Route 132)
    • Beginning of A-20/split from Route 132
  • (599)Crossroad (Montee Brilliant/Route 132)
  • (606) Ramp.png (Rue de Lausanne)
  • (610) Ramp.png (Chemin Ste-Odile (Route 232))
  • (614) Ramp.png (Montée Industrielle)
  • (621) Ramp.png (Avenue Père-Nouvel / Rue de la Gare)
  • (630) Crossroad (Route 298)
    • End of A-20/merge with Route 298
  • (641) Ramp.png (Route Jacques-Cartier / Boulevard Gaboury (Route 132)) (In construction)

Continue Eastward as Route 132

Hitching the A-85/Route 185

Trans-Canada Route 185 (A-85) to New Brunswick

Status: In construction

  • (499) Ramp.pngAutobahn junction.png A-20
    • Continue Westward or Eastward on the A-20 (Route 132)
  • (96) Ramp.png (Rue Fraserville - Rivière du Loup)
  • (93) Ramp.png (Boulevard de la Plaine - Rivière du Loup)
  • (90) Ramp.png (1er Rang)
    • Northbound Entrance/Southbound Exit
  • (89) Ramp.png (Rue Principale - St-Antonin)
  • Crossroad (3e Rang - St-Antonin)

End as expressway


  • Crossroad (Chemin de la Rivière-Verte - Rivière-du-Loup)
    • Witworth Malécites Indian Reserve
  • Crossroad (Route 291)
    • St-Louis-du-Ha!-Ha!
  • Crossroad (Route 232 East)
    • Cabano
  • Crossroad (Route 232 West)
    • Notre-Dame-du-Lac
  • Crossroad (Route 295) - Dégelis
  • New Brunswick border

Connects to Route 2 southwards in New Brunswick