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Route Transcanadienne | ||||
Autoroute Jean-Lesage Autoroute du Souvenir | ||||
Route information | ||||
Maintained by Transports Québec | ||||
Length | 641 km[1] (398 mi) | |||
Existed | 1964[2]–present | |||
Main section | ||||
Length | 542.5 km[1] (337.1 mi) | |||
West end | Highway 401 at the Ontario border near Rivière-Beaudette | |||
Major intersections |
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East end | Route Drapeau in L'Isle-Verte | |||
Rimouski section | ||||
Length | 45.2 km[1] (28.1 mi) | |||
West end | R-132 near Rimouski | |||
East end | R-132 in Mont-Joli | |||
Location | ||||
Country | Canada | |||
Province | Quebec | |||
Major cities | Montreal, Longueuil, Brossard, Drummondville, Lévis | |||
Highway system | ||||
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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 main segment 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), which 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.