Quebec Autoroute 20
highway in Quebec
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 kilometres (364 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-kilometre (35 mi) gap. The main segment extends for 540 kilometres (335.5 mi) from the Ontario border to its current terminus at Trois-Pistoles. The second, more northerly section is far shorter (44 kilometres or 27 miles), 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, 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, many politicians in the Bas-Saint-Laurent region have criticized the government's lack of progress in linking the two sections of the autoroute and twinning the two-lane portion.
Description
Autoroute du Souvenir
Montérégie
A-20 begins at the Ontario-Quebec border near Rivière-Beaudette as the continuation of Ontario Highway 401, which continues west to Toronto. The westernmost section of A-20 was named the Autoroute du Souvenir (Remembrance Highway) in 2007 to honour Canadian veterans.
The public source identifies “Quebec Autoroute 20” as highway in Quebec. This brief keeps that definition visible, then builds a research path around Quebec, Autoroute and highway.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q788622. VIAF identifies the subject as 316926080. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2007.
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This entry incorporates text from “Quebec Autoroute 20” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.