Quebec Autoroute 20

Autoroute 20
Autoroute Jean-Lesage Autoroute du Souvenir Trans-Canada Highway
Route information
Maintained by Transports Québec
Length	587.7 km[1] (365.2 mi)
Existed	1964[2]–present
Main section
Length	542.5 km[1] (337.1 mi)
West end	Highway 401 towards Cornwall, ON
Major junctions	A-30 in Vaudreuil-Dorion A-520 in Dorval A-13 in Montreal A-15 in Montreal Route 136 in Montreal A-10 in Montreal A-25 (TCH) in Longueuil A-30 in Sainte-Julie > A-55 in Drummondville A-955 in Sainte-Eulalie A-73 near Quebec City A-85 (TCH) near Rivière-du-Loup
East end	Route Drapeau in L'Isle-Verte
Rimouski section
Length	45.2 km[1] (28.1 mi)
West end	Route 132 near Rimouski
East end	Route 132 in Mont-Joli
Location
Major cities	Vaudreuil-Dorion, Pointe-Claire, Montreal, Brossard, Longueuil, Boucherville, Sainte-Julie, Beloeil, Saint-Hyacinthe, Drummondville, Lévis, Montmagny, Rivière-du-Loup, Rimouski, Mont-Joli
Highway system
Quebec provincial highways Autoroutes List Former ← A-19 → A-25

Autoroute 20 is a Quebec Autoroute, following the Saint Lawrence River through one of the more densely populated parts of Canada, with its central section forming the main route of the Trans-Canada Highway from the A-25 interchange to the A-85 interchange. At 585 km (363.5 mi), it is the longest Autoroute in Quebec. It is one of two main links between Montreal and Quebec City; the other is the A-40.

There are two sections of the A-20, separated by a 57 km (35.4 mi) gap. The mainline extends for 540 km (335.5 mi) from the Ontario border to its current terminus at Trois-Pistoles. The second, more northerly section is far shorter (44 km (27.3 mi)). Constructed as a super two autoroute (one lane in each direction), this section of the A-20 bypasses Rimouski to the south and ends at a roundabout junction with Highway 132 in Mont-Joli. While the Quebec government has completed environmental and economic reviews of the impact of linking the two sections of Autoroute 20,^[3] it has not committed the funds necessary for construction. Citing the high number of accidents on the Rimouski-Mont-Joli link of the A-20,^[4] many politicians in the Bas-Saint-Laurent region have criticized the government's lack of progress in linking the two sections of autoroute and twinning the two-lane portion.

Description[]

Autoroute du Souvenir[]

The ending of Ontario Highway 401 marks the beginning of Autoroute 20.

Montérégie[]

The A-20 begins at the Ontario-Quebec border near Rivière-Beaudette as the continuation of Ontario Highway 401. The westernmost section of the A-20 was named the Autoroute du Souvenir (Remembrance Highway) in 2007 to honour Canadian veterans. Road marker signs on this stretch of the autoroute feature a poppy (a traditional symbol of Remembrance in Canada).

At km 29, the A-20 crosses A-30 (former A-540) before becoming an urban boulevard for approximately eight kilometres (km 30 to 38) in Vaudreuil-Dorion and L'Île-Perrot. This stretch of highway takes the A-20 across the Ottawa River. The speed limit is 50 km/h (30 mph) in Vaudreuil-Dorion and 70 km/h (45 mph) in L'Île-Perrot. The A-20 once again becomes a limited-access highway at km 38, just before crossing the Sainte-Anne-de-Bellevue Canal onto the Island of Montreal.

Montreal Region[]

The A-20 then traverses the West Island (in French, l'Ouest de l'Île) along the north shore of Lac Saint-Louis to an interchange with the A-520. Commonly called the Dorval Interchange, this exit is the main access to Montreal's Trudeau International Airport. Further east, the A-20 crosses the A-13 at its southern terminus, and then, at the St. Pierre Interchange, Route 138 west towards the Mercier Bridge.

Just west of downtown Montreal, the A-20, A-15, and R-136 meet at the Turcot Interchange. In 2020, the completion of a major project involving the rebuilding of the Turcot Interchange has shifted the autoroute north between Route 138 and the Turcot Interchange. From this interchange, A-15 continues north to Laval while A-20 east is multiplexed with A-15 south on the approach to the Samuel-de-Champlain Bridge. Traffic bound for the city centre continues as the R-136 (Autoroute Ville-Marie).

South Shore[]

Multiplexed with the A-10 and A-15, all three autoroutes cross the Saint Lawrence River via the Samuel-de-Champlain Bridge to the South Shore (in French, Rive Sud). The multiplex splits south of the bridge. The A-20 parallels the south shore of the river through suburban Longueuil. The junction with the A-25 affords a direct connection to the Louis Hippolyte Lafontaine Bridge-Tunnel and Montreal's East End. The Trans-Canada Highway joins the A-20 at this junction.

Autoroute Jean-Lesage[]

Autoroute 20 in Saint-Michel-de-Bellechasse with the Saint Lawrence River and the Laurentian Mountains at the background

The largest section of the A-20 (from its junction with A-25 to its easternmost terminus) is named after Jean Lesage, who served as Premier of Quebec from 1960 to 1966, during the Quiet Revolution. Autoroute Jean-Lesage currently exists as two discontinuous sections separated by about 55 kilometres:

• The main section between the Louis-Hippolyte-Lafontaine Bridge-Tunnel and Trois-Pistoles in the Bas-Saint-Laurent region.
• A shorter section that serves as a bypass of Rimouski and extends east to a final terminus at Route 132 in Mont-Joli.

Main section[]

Centre-du-Québec[]

From the junction with A-25, the A-20 travels east, away from the St. Lawrence River. At kilometre 98, the A-20 intersects the A-30 near Mont Saint-Bruno, crossing the Richelieu River (km 112) just north of Mont-Saint-Hilaire. Bypassing Saint-Hyacinthe, the A-20 forms a multiplex with Route 116 for six kilometres between exits 141 and 147. This section of the A-20 in Centre-du-Québec is located the furthest from the St. Lawrence River (approximately 45 kilometres). Between Drummondville and Sainte-Eulalie, the A-20 forms a multiplex with A-55 for 37 kilometres.

Quebec City Region[]

The A-20 continues across the St. Lawrence Lowlands and Quebec's agricultural heartland. The autoroute once again parallels the river as it approaches metropolitan Quebec City. From this point eastward, the A-20 is never more than five kilometres from the river. At km 312, the A-20 crosses the A-73, a north–south link between Saint-Georges and Quebec City via the Pierre Laporte Bridge. While the control city on the A-20 is listed as "Québec", the autoroute never enters the city proper. Before departing the region the A-20 bypasses suburban Lévis.

Chaudière-Appalaches and Bas-Saint-Laurent[]

Autoroute 20 westbound in Montreal, ~km 66

This section of the A-20 offers the motorist splendid views over the St. Lawrence River and the mountains of the Côte-Nord, especially Mont-Sainte-Anne and Le Massif. As it continues eastward, the A-20 passes the regional centres of Montmagny and La Pocatière before approaching Rivière-du-Loup and the junction with A-85 at km 499. The Trans-Canada Highway departs the A-20 at this interchange and travels southeast on A-85 toward Edmundston, New Brunswick and the Maritime Provinces. At km 518, the highway becomes a super two for the remainder of its main section. The eastern end of the main section of the A-20 is located in Trois-Pistoles, approximately 40 kilometres east of Rivière-du-Loup.

Rimouski section[]

The second section of Autoroute Jean-Lesage (km 597 to km 641) connects Rimouski to Mont-Joli. It begins at a junction with Route 132 in the village of Le Bic, approximately 55 km from the current terminus of the A-20 main section. Like its larger counterpart, the Rimouski section of the A-20 parallels the St. Lawrence, providing a southern bypass of Rimouski before ending (at another junction with Route 132) at the western approach to Mont-Joli.

This section of the A-20 is currently a single carriageway with occasional passing lanes. It was built to accommodate an eventual expansion to four lanes and most overpasses include the clearance needed to accommodate the additional lanes. The high accident rate along this section of the A-20 have prompted many politicians to call for the highway to be expanded to two lanes in each direction.

An electric fence has been installed on both sides of the highway between km 621 and 628 to prevent moose from crossing the road, while at km 624 an underpass has been constructed to allow wildlife to pass under the highway safely.

Future[]

Transports Québec (MTQ) is currently engaged in several projects designed to connect the two segments of the A-20 as well as replace outdated sections.

Greater Montréal[]

The MTQ plans to rebuild A-20 (currently an urban boulevard) through Vaudreuil-Dorion and Île-Perrot as a limited-access highway. There is no timeline for this project presently.

Bas-Saint-Laurent[]

Long-range plans by the MTQ call for the two sections of the A-20 to meet. A 9.8 km section of single carriageway was opened to traffic on December 3, 2011 between Cacouna and L'Isle-Verte. As part of this project, a few kilometres of the highway near Cacouna was moved 1.5 km to the south and the old roadbed was destroyed. The MTQ timeline for completing the highway to Trois-Pistoles was met; it opened to traffic in November 2015. Overpasses were constructed for the St-Paul, St-Éloi and Drapeau roads.

Regarding the section from Trois-Pistoles to Le Bic, the Quebec government has completed environmental and economic reviews of the impact of linking the two sections of Autoroute 20,^[3] but it has not committed the funds necessary for construction. Frustrated by the long delay in linking the two sections of the A-20, in 2013, the Mayor of Rimouski proposed paying for the construction by tolling the autoroute.^[5]

Citing predictions for an increase in ferry traffic to and from the Côte-Nord as a result of the Government of Quebec's Plan Nord, in 2011 the Mayor of Matane called for the further extension of the A-20 to his city.^[6]

Popular culture[]

Autoroute 20 serves as the backdrop to the popular 2002 Quebec film Québec-Montréal by Ricardo Trogi about seven twenty-something travellers driving between the two cities.

The Quebec French expression "à l'autre bout de la 20" (in English, at the other end of the 20) refers to Montreal when the speaker is in Quebec City, and to Quebec City when one is in Montreal.

Other names[]

Older Anglophone Montrealers sometimes still refer to the section of the A-20 west of the city as Highway 2-20 (or "The Two and Twenty"), but the Route 2 designation was dropped in the mid 1970s.

Exit list[]

RCM	Location	km	mi	Exit	Destinations	Notes
Quebec–Ontario boundary		0.0	0.0		Highway 401 west – Cornwall, Toronto	A-20 continues as Highway 401
Montérégie	Rivière-Beaudette	0.9	0.56	Rivière-Beaudette Service Centre (Eastbound)
		2.5	1.6	2	Route 325 to Route 338 – Rivière-Beaudette, Saint-Télesphore
	Saint-Zotique	5.3	3.3	6	Chemin Saint-Thomas
		9.2	5.7	9	Saint-Zotique, Saint-Polycarpe, Saint-Télesphore
	Les Coteaux	11.4	7.1	12	Les Coteaux
	Coteau-du-Lac	13.6	8.5	14	Route 201 south – , Salaberry-de-Valleyfield
		16.4	10.2	17	Route 201 north – Saint-Clet, Coteau-du-Lac
		18.6	11.6	19	Chemin Saint-Emmanuel
	Les Cèdres	21.5	13.4	22	Chemin Saint-Dominique
		25.0	15.5	26	Saint-Lazare, Les Cèdres
	Vaudreuil-Dorion	27.6	17.1	29	A-30 to A-40 / Highway 417 – Mirabel Airport, Ottawa/Gatineau, Sorel-Tracy, Montréal, Québec, To toll bridge	A-30 exit 5; west end of Montreal bypass via A-30
		31.6	19.6	—	Route 342 (Route Harwood)	At-grade intersection
		32.7	20.3	—	Route 338 (Chemin de Lotbinière)	At-grade intersection
		33.3	20.7	—	Avenue Saint-Henri	At-grade intersection
	Ottawa River	33.7– 34.2	20.9– 21.3	Taschereau Bridge
	Pincourt	34.3	21.3	35	Boulevard Cardinal-Léger – Terrasse-Vaudreuil, Pincourt
		35.3	21.9	—	Boulevard de l'Île	At-grade intersection. Entrance and exit to south only.
	L'Île-Perrot	36.7	22.8	—	Boulevard Don-Quichotte	At-grade intersection
		37.2	23.1	—	Boulevard Perrot	At-grade intersection
		37.8	23.5	38	Chemin de L'Île-Claude, Rue de L'Île-Bellevue	Westbound exit and eastbound entrance
Ottawa River		38.1– 38.4	23.7– 23.9	Galipeault Bridge
Urban agglomeration of Montreal	Sainte-Anne-de-Bellevue	38.5	23.9	39	Sainte-Anne-de-Bellevue
	Baie-D'Urfé	41.3	25.7	42	Rue Morgan
	Beaconsfield	43.8	27.2	45	Avenue Woodland
		47.2	29.3	48	Boulevard Saint-Charles
	Pointe-Claire	48.7	30.3	49	Avenue Cartier
		49.9	31.0	50	Boulevard Saint-Jean	Signed as exits 50S (south) and 50N (north) westbound
		51.5	32.0	51	Chemin du Bord-du-Lac	Eastbound exit and entrance
	Dorval	52.6	32.7	53	Boulevard des Sources
		53.8	33.4	54	Boulevard Pine Beach, Boulevard Fénelon
		54.9	34.1	56O	A-520 east / Avenue Dorval
		55.5	34.5	56E	P.E. Trudeau Airport	Westbound exit and eastbound entrance
	Montreal	57.5	35.7	58	55e Avenue
		59.3	36.8	60	A-13 north / 32e Avenue – Laval, Mirabel Airport	A-13 exit 1
		61.0	37.9	61	Rue Norman	Westbound exit and entrance
		61.9	38.5	62	1re Avenue, Rue Saint-Jacques / Avenue Dollard	Westbound exit via exit 63
		62.7	39.0	63	Route 138 west – Pont Mercier
		63.9	39.7	64	Route 138 east / Rue Saint-Jacques, Boulevard Angrignon	Route 138 exit 4
		65.1	40.5	67	Rue Notre Dame, Boulevard Angrignon	Eastbound exit via exit 64
		67.3	41.8	68 63[i]	A-15 north (Autoroute Décarie) – Saint-Jérôme Route 136 east (Autoroute Ville-Marie) – Montreal Centre-ville	Turcot Interchange; west end of A-15 concurrency; A-15 exit 63; exit numbers follow A-15
		69.4	43.1	62[i]	Boulevard de la Vérendrye, Avenue de l'Église
		70.6	43.9	61[i]	Rue Atwater, Rue Saint-Patrick
		71.8	44.6	60[i]	A-10 west / Boulevard Gaétan-Laberge Rue Wellington – Montreal Centre-ville	A-10 exit 4
		73.5	45.7	58[i]	A-10 west – Montreal Centre-ville, Île des Sœurs	Western end of A-10 concurrency; A-10 exit 4
		74.0	46.0	57[i]	Île des Sœurs, Chemin de la Pointe Nord	Signed as 57S for Île des Sœurs and 57N for Chemin de la Pointe Nord Southbound, Exit 58 Northbound
Saint Lawrence River		74.4– 77.2	46.2– 48.0	Champlain Bridge
Montérégie	Brossard	77.6– 79.1	48.2– 49.2	53[i] 75	A-10 east to A-30 / I-89 – Sherbrooke, Québec, Vermont A-15 south / Route 132 west to I-87 – La Prairie, New York	East end of A-10/A-15 concurrency; west end of Route 132 concurrency; A-10 exit 6
					Boulevard Rome	Westbound exit; A-15 exit 52
				—	Boulevard Marie-Victorin	Eastbound exit only
	Saint-Lambert	79.5	49.4	76	Boulevard Simard
		80.6	50.1	78	Route 112 (Boulevard Laurier) – Pont Victoria, Montreal
		82.9	51.5	79	Avenue Notre-Dame
	Longueuil	84.5	52.5	81	Boulevard Lafayette	Eastbound exit and entrance
		85.2	52.9	82	Route 134 (Boulevard Taschereau) – Pont Jacques-Cartier, Montreal
		88.5	55.0	85	Boulevard Roland-Therrien
		92.5	57.5	89	A-25 (TCH) north to A-40 – Tunnel Louis-H.-Lafontaine, Montreal Route 132 east – Boucherville, Varennes	Trans-Canada Highway west end (continues on A-25); east end of Route 132 concurrency; Route 132 exit 15; A-25 exit 0
		92.7	57.6	90	Boulevard Marie-Victorin
		93.6	58.2	91	Boulevard Industriel, Rue Métropole
	Boucherville	94.3	58.6	92	Boulevard Mortagne
		95.1	59.1	93	Rue Nobel	Eastbound exit only
		98.0	60.9	95	Boulevard de Montarville
		99.0	61.5	98	A-30 to A-10 – Saint-Hubert Airport, Brossard, Sorel-Tracy, Châteauguay, USA	A-30 exit 83; East end of Montreal bypass via A-30
	Sainte-Julie	101.5	63.1	102	Sainte-Julie, Saint-Amable, Saint-Bruno-de-Montarville
		104.8	65.1	105	Route 229 – Saint-Basile-le-Grand, McMasterville
	Saint-Mathieu-de-Beloeil–Beloeil city line	109.1	67.8	109	Rue Saint-Jean-Baptiste – Beloeil, Saint-Mathieu-de-Beloeil
	Beloeil	112.4	69.8	112	Route 223 (Rue Richelieu) – Beloeil, Saint-Marc-sur-Richelieu
	Mont-Saint-Hilaire	112.8	70.1	113	Route 133 (Chemin des Patriotes) – Mont-Saint-Hilaire, Saint-Jean-sur-Richelieu, Saint-Charles-sur-Richelieu
		115.5	71.8	115	La Grande-Allée – Saint-Jean-Baptiste, Saint-Damase
	Sainte-Madeleine	117.6	73.1	Sainte-Madeleine Rest Stop (Eastbound) Hurons Rest Stop (Westbound)
		119.8	74.4	120	Route 227 – Sainte-Madeleine, Saint-Jean-Baptiste
	La Présentation	123.1	76.5	123	Grand Rang – La Présentation, Saint-Hyacinthe
	Saint-Hyacinthe	128.6	79.9	128	Avenue Pinard
		130.6	81.2	130	Route 137 / Route 235 – Saint-Hyacinthe, Granby, Saint-Thomas-d'Aquin, Saint-Denis-sur-Richelieu	Signed as exits 130S (south) and 130N (north)
		130.9	81.3	At-grade railway crossing
		133.6	83.0	133	Rue Girouard – Saint-Hyacinthe
		134.0	83.3	134	Rue Yamaska – Saint-Hyacinthe
		137.9	85.7	138	Route 224 – Sainte-Rosalie, Saint-Simon
	Saint-Simon	141.7	88.0	141	Route 116 west to Route 137 south – Sainte-Rosalie, Saint-Hyacinthe, Granby	West end of Route 116 concurrency
		142.5	88.5	143	Route 211 to Saint-Valérien-de-Milton
	Saint-Simon–Saint-Liboire city line	145.0	90.1	145	Saint-Simon, Saint-Liboire
		146.4	91.0	147	Route 116 east – Upton, Acton Vale	East end of Route 116 concurrency
	Sainte-Hélène-de-Bagot	150.3	93.4	150	Saint-Hugues
		152.4	94.7	152	Sainte-Hélène
Montérégie–Centre-du-Québec region line	Saint-Nazaire-d'Acton–Saint-Eugène city line	156.1	97.0	Saint-Nazaire-d'Acton Rest Stop (Westbound)
		156.9	97.5	157	Saint-Nazaire, Wickham
Centre-du-Québec	Saint-Eugène	160.6	99.8	160	Route 239 – Saint-Eugène, Saint-Guillaume
	Saint-Germain-de-Grantham	165.7	103.0	166	10e Rang de Saint-Germain
		170.3	105.8	170	Route 122 – Saint-Germain-de-Grantham, Yamaska, Sorel
	Drummondville	173.7	107.9	173	A-55 south to I-91 – Drummondville, Sherbrooke, Vermont	West end of A-55 concurrency; A-55 exit 128
		174.2	108.2	175	Route 143 north (Boulevard Lemire) – Saint-Bonaventure, Saint-François-du-Lac	West end of Route 143 concurrency
		177.0	110.0	177	Route 143 south – Saint-Majorique-de-Grantham, Drummondville	East end of Route 143 concurrency
		179.3	111.4	179	Chemin du Golf
	Saint-Charles-de-Drummond	180.8	112.3	181	Saint-Charles-de-Drummond, Drummondville, Saint-Joachim-de-Courval
	Saint-Cyrille-de-Wendover	185.6	115.3	185	Route 255 – Baie-du-Febvre, Saint-Cyrille-de-Wendover, Saint-Félix-de-Kingsey
	Notre-Dame-du-Bon-Conseil	191.6	119.1	191	Sainte-Brigitte-des-Saults
		196.5	122.1	196	Route 259 – Nicolet, Sainte-Perpétue, Notre-Dame-du-Bon-Conseil, Quebec
	Notre-Dame-du-Bon-Conseil–Saint-Léonard-d'Aston city line	199.8	124.1	200	Saint-Léonard-d'Aston
	Saint-Léonard-d'Aston	201.8	125.4	202	Rang du Moulin-Rouge
	Sainte-Eulalie	203.0	126.1	204	Rang des Cédres, Rang des Plaines
		208.0– 211.0	129.2– 131.1	210	A-55 north – Bécancour, Trois-Rivières A-955 south – Victoriaville, Saint-Albert, Warwick Route 161 – Sainte-Eulalie, Saint-Valère	East end of A-55 concurrency; A-55 exit 145; A-955 exit 15
		214.7	133.4	215	Rang des Épinettes
	Sainte-Anne-du-Sault	220.3	136.9	220	Route 261 – Bécancour, Daveluyville, Victoriaville
		223.0	138.6	Sainte-Anne-du-Sault Rest Stop (Eastbound)
		225.0	139.8	Lac-à-la-Truite Rest Stop (Westbound)
	Saint-Louis-de-Blandford	228.7	142.1	228	Route 165 (2e Rang de Saint-Louis-de-Blandford) – Princeville, Plessisville, Thetford Mines
		235.0	146.0	235	Route 162 south / Route 263 north – Lemieux, Princeville, Victoriaville, Saint-Louis-de-Blandford
	Manseau	243.6	151.4	243	Route 218 – Manseau, Saint-Pierre-les-Becquets
	Villeroy	252.6	157.0	253	Route 265 – Villeroy, Plessisville, Deschaillons, Notre-Dame-de-Lourdes, Thetford Mines
		254.0	157.8	L'Érable Rest Stop (Eastbound) Villeroy Rest Stop (Westbound)
		256.4	159.3	256	15e et 16e Rangs de Villeroy
Chaudière-Appalaches	Val-Alain	261.7	162.6	261	Val-Alain
		266.5	165.6	266	4e et 5e Rangs de Val-Alain
	Saint-Janvier-de-Joly	271.6	168.8	271	Joly
	Laurier-Station	278.1	172.8	278	Route 271 – Laurier-Station, Sainte-Croix, Saint-Flavien
	Saint-Apollinaire	284.8	177.0	285	Issoudun
		290.7	180.6	291	Route 273 – Saint-Agapit, Saint-Apollinaire, Saint-Antoine-de-Tilly
		296.3	184.1	296	Route du Cap
	Lévis	305.3	189.7	305	Route 171 – Saint-Nicolas, Saint-Étienne, Thetford Mines
		309.0	192.0	Chaudière-Appalaches Service Centre (Eastbound)
		311.4	193.5	311	Route 116 – Saint-Nicolas, Saint-Rédempteur
		312.8– 314.0	194.4– 195.1	312	A-73 to US 201 – Pont Pierre-Laporte, Québec, Saint-Georges, Maine	Signed as exits 312S (south) and 321N (north); westbound exit is part of 314; A-73 exit 131
				314	Route 175 – Pont de Québec, Charny, Saint-Romuald
		317.9	197.5	318	Route 275 – Saint-Jean-Chrysostome, Saint-Romuald	Signed as exits 318S (south) and 318N (north) eastbound
		321.5	199.8	321	Chemin des Îles
		325.0	201.9	325	Route 173 to Route 277 – Pintendre, Lac-Etchemin, Lévis	Signed as exits 325S (south) and 325N (north) eastbound
		327.5	203.5	327	Route Monseigneur-Bourget
		330.5	205.4	330	Route Lallemand
	Beaumont	337.3	209.6	337	Route 279 – Beaumont, Saint-Charles, Saint-Damien
		341.0	211.9	341	Beaumont, Saint-Charles
	Saint-Michel-de-Bellechasse	344.0	213.8	La Durantaye Rest Stop (Eastbound)
		345.0	214.4	Saint-Michel-de-Bellechasse Rest Stop (Westbound)
		348.0	216.2	348	Route 281 – Saint-Michel-de-Bellechasse, La Durantaye
	Saint-Vallier	355.7	221.0	356	Saint-Vallier, Saint-Raphaël
	Berthier-sur-Mer–Saint-François-de-la-Rivière-du-Sud city line	363.9	226.1	364	Berthier-sur-Mer, Saint-François-de-la-Rivière-du-Sud
	Saint-François-de-la-Rivière-du-Sud–Montmagny city line	369.3	229.5	369	Saint-Pierre-de-la-Rivière-du-Sud
	Montmagny	375.9	233.6	376	Route 228 (Chemin des Poirier) – Montmagny
		377.6	234.6	378	Route 283 – Montmagny, Saint-Fabien-de-Panet
	Cap-Saint-Ignace	388.3	241.3	388	Cap-Saint-Ignace
	L'Islet	393.0	244.2	Belles-Amours Rest Stop (Westbound, seasonal)
		399.9	248.5	400	Route 285 – L'Islet, Saint-Eugène
	Saint-Jean-Port-Joli	413.5	256.9	414	Route 204 – Saint-Jean-Port-Joli, Saint-Aubert, Saint-Pamphile
	Saint-Roch-des-Aulnaies	430.0	267.2	430	Route 132 – Saint-Roch-des-Aulnaies, Sainte-Louise
Bas-Saint-Laurent	Sainte-Anne-de-la-Pocatière	435.8	270.8	436	Route 132 (Avenue Industrielle) – La Pocatière
	La Pocatière	438.9	272.7	439	La Pocatière, Saint-Onésime
		443.8	275.8	444	Route 132 (Avenue de la Grande-Anse) – La Pocatière, Rivière-Ouelle
	Rivière-Ouelle–Saint-Pacôme city line	449.3	279.2	450	Rivière-Ouelle, Saint-Pacôme, Saint-Gabriel
	Saint-Philippe-de-Néri	455.7	283.2	456	Route 287 – Saint-Denis, Saint-Philippe-de-Néri, Mont-Carmel
		458.0	284.6	Kamouraska Rest Stop (Westbound) Monadnocks Rest Stop (Eastbound)
	Saint-Pascal	464.4	288.6	465	Kamouraska, Saint-Pascal, Saint-Bruno
	Sainte-Hélène	473.9	294.5	474	Saint-Germain, Sainte-Hélène
	Saint-André	479.9	298.2	480	Saint-André, Saint-Joseph
	Saint-André–Saint-Alexandre-de-Kamouraska city line	487.5	302.9	488	Route 289 to Route 230 – Saint-Alexandre-de-Kamouraska, Pohénégamook, Lac-Baker, NB
	Notre-Dame-du-Portage	495.1	307.6	496	Notre-Dame-du-Portage
		498.0	309.4	Portage Rest Stop (Eastbound, seasonal)
		499.3	310.3	499	A-85 (TCH) south to Route 185 / Route 2 – Témiscouata-sur-le-Lac, Dégelis, New Brunswick	Trans-Canada Highway east end (continues on A-85); eastbound exit and westbound entrance; A-85 exit 100
	Rivière-du-Loup	502.3	312.1	503	Route 132 (Rue Fraser) / Boulevard de l'Hôtel-de-Ville
		506.6	314.8	507	Route 132 (Boulevard Cartier) – Saint-Siméon
	Cacouna	513.9	319.3	514	Route 191 to A-85 / Route 185 – Saint-Arsène, Cacouna, Témiscouata-sur-le-Lac, New Brunswick	Westbound access to A-85
		520.5	323.4	521	Route Moreault
	L'Isle-Verte	527.1	327.5	527	Montée des Coteaux [7]
		531.4	330.2	531	L'Isle-Verte (Rue Notre-Dame), St-Paul-de-la-Croix
		539.1	335.0	539	Saint-Éloi, Route de la Station
		542.5	337.1	542	To Route 132 / Route Drapeau – Trois-Pistoles, Rimouski	Current eastern end of main segment
	55.2 km (34.3 mi) gap in A-20
	Rimouski	597.7	371.4	—	Route 132 – Rivière-du-Loup, Rimouski	At-grade intersection
		606.7	377.0	606	Rue de Lausanne
		611.1	379.7	610	Route 232 (Chemin Sainte-Odile) – Rimouski, Sainte-Blandine
		615.1	382.2	614	Montée Industrielle-et-Commercialle
		622.2	386.6	621	Avenue Père-Nouvel / Rue de la Gare
	Sainte-Luce	629.8	391.3	629	Route 298 – Sainte-Luce, Saint-Donat, Sainte-Flavie
	Mont-Joli	642.9	399.5	641	Route 132 / Boulevard Jacques-Cartier – Sainte-Flavie, Matane, Amqui, New Brunswick	Eastern terminus; traffic circle
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Incomplete access       Route transition

Rest stops[]

The rest stops are located at the following points on Highway 20 and contain the following services:

Location	km	Direction	Services	Notes
Rivière-Beaudette	2	Eastbound	Washroom Phone Tourist Information fuel food C-store	Full service facility: Esso, St-Hubert, Tim Hortons, Couche-Tard
Sainte-Madeleine	117	Eastbound	Washroom Phone
		Westbound	Washroom Phone	Named Halte des Hurons
Saint-Eugène	156	Westbound	Washroom Phone
Sainte-Anne-du-Sault	223	Eastbound	Washroom Phone
	225	Westbound	Washroom Phone
Villeroy	254	Eastbound	Washroom Phone
		Westbound	Washroom Phone
Lévis	309	Eastbound	Washroom Phone	Named Halte de Saint-Rédempteur
Saint-Michel-de-Bellechasse	344	Eastbound	unknown
	345	Westbound	unknown
Cap-Saint-Ignace	393	Westbound	unknown
Saint-Philippe-de-Néri	458	Eastbound	Washroom	Named Halte de Kamouraska
		Westbound	Washroom	Named Halte de Monadnocks
Notre-Dame-Du-Portage	498	Eastbound	Washroom Phone	(Open only June to August)

Gallery[]

A-20 Eastbound

• 

  14th Ave, Lachine

• 

  Merge with 138, Lasalle

• 

  Turcot yards

• 

  Autoroute 20 eastbound, km 311 near Pierre-Laporte Bridges in Lévis, Québec

A-20 Westbound

• 

  Autoroute 20 west, ~km59 on Montreal Island

• 

  Autoroute 20 east, near Rivière Beaudette, ~km 5

• 

  A-30 at A-20 westbound

• 

  Autoroute 20 west, exit 29.

See also[]

• List of bridges in Montreal
• List of crossings of the Ottawa River
• List of crossings of the Saint Lawrence River

Notes[]

References[]

External links[]

Route map:

Wikimedia Commons has media related to Quebec Autoroute 20.

• A-20 at Exitlists.com
• A-20 at Quebec Autoroutes
• Transports Quebec Map (in French)
• Veteran from Gaspé behind idea to rename Quebec highway to remember war dead^{[permanent dead link]}
• Autoroute 20 @ Asphaltplanet.ca

Preceded by Autoroute 25

Trans-Canada Highway Autoroute 20

Succeeded by Autoroute 85