Quebec Autoroute 35

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Autoroute 35

Autoroute de la Vallée-des-Forts
Route information
Maintained by Transports Québec
Length40 km[1][2][3] (25 mi)
Major junctions
South end R-133 in Saint-Sébastien
Major intersections R-104 in Saint-Jean-sur-Richelieu
North end A-10 in Chambly
Major citiesSaint-Jean-sur-Richelieu, Chambly, Carignan, Saint-Alexandre, Saint-Armand
Highway system
A-31 A-40

Autoroute 35 (A-35) is an Autoroute in the region of Montérégie, Quebec, Canada. Constructed in the 1960s, A-35 links Saint-Jean-sur-Richelieu with Montreal via the A-10. A-35 is also the primary route for traffic between Montreal and Boston, although it ends 13.4 km (8.3 mi) short of the U.S. border. South of its current terminus in Saint-Sébastien, A-35 continues as two-lane Route 133 (which becomes four-lane divided 6.5 km (4.0 mi) north of the border) to the border. An extension of A-35 to meet Interstate 89 at Saint-Armand will complete a nearly 500 km (310 mi) limited-access highway link between Montreal and Boston.[4] It had been scheduled to open in 2017, but construction was on hold and now will be completed up to the Canada-US border by 2023.[5]

Like many Quebec Autoroutes, A-35 also has a name: Autoroute de la Vallée-des-Forts (Forts Valley Highway). The name refers to a chain of forts built by the French in the Richelieu Valley during the 17th and 18th centuries to defend their colonial settlements from the Iroquois. A-35 used to be known as Autoroute de la Nouvelle-Angleterre (New England Motorway), referring to its role as a link between Quebec and New England.


View of then unopened Autoroute 35 looking northerly from the Route 227 overpass

First constructed in the 1960s, A-35 is currently a 40 km (25 mi) long, 4-lane spur route linking Saint-Jean-sur-Richelieu to Autoroute 10. By 1966, 16 km (10 mi) connecting A-10 in Chambly with Route 104 in Iberville were opened to traffic. Another 3 km (2 mi) of A-35 from Route 104 to its terminus with Route 133 were completed in 1967. Completion of the entire length of A-35 had been scheduled for that year in time for Expo 67, but the province instead focused on expediting construction of autoroutes and approach roads to the Expo site.[6]

For many years, A-35 featured at-grade intersections with St-Raphael Road and St-Andre Road in Saint-Luc. These intersections were closed in 1999; the St-Andre Road intersection was converted into a partial cloverleaf interchange, while St-Raphael Road was dead-ended on either side of A-35.


A federal-provincial funding agreement is providing for the completion of A-35 to Interstate 89 at the U.S. border. The project's objectives are to improve economic links between Quebec and New England, reduce traffic on Route 133 (which is ill-equipped for the traffic it currently carries) and improve quality of life in the region.[4]

Construction of the A-35 extension began in 2009 between Saint-Alexandre and Saint-Sébastien. Construction of the 37.9 km (23.5 mi) extension is divided into four segments. The first section (first two segments) of new highway between Saint-Jean-sur-Richelieu and Highway 133 to Saint-Sébastien was opened on October 8, 2014.

On June 10, 2019, Federal and provincial government officials announced plans to extend Quebec's Highway 35 by nearly nine kilometres in the southbound direction — leaving it 4.5 kilometres short of reaching the U.S. border. Although Provincial authorities still did not set a date when the section would be complete, construction of this section began in 2020.[7]

The Legault government confirmed that Autoroute 35 in the Montérégie region will be completed up to the Canada-US border by 2023. [5]

Phase III of the work aims to extend Highway 35 from Route 133 in Saint-Sébastien to the junction of Route 133 and chemin Champlain and du Moulin in Saint-Armand. An overpass has been built over Route 202 at Pike River,[8] a bridge is being built over the Rivière-aux-Brochets, an interchange will be erected at the junction of Highway 35, Champlain Road and Route 133 at Saint-Armand and a roundabout will be built just to the northeast of that, at the intersection of Route 133 and Champlain and Moulin roads in Saint-Armand.[5][9][10]

Phase IV will complete the last 4.5 km of the project between the intersection of Route 133 and Champlain and du Moulin Roads in Saint-Armand to the U.S. border.[11]

In addition, the interchange in Saint-Alexandre that was not built as part of Phase II of the extension, which had been planned for the location where Highway 227 crosses Highway 35 on Rang des Dussault, will be moved to the southeast to meet a re-routed Highway 227 that continues southwest from its current intersection at Rang des Soixante and Chemin de la Grande Ligne.[9]

When completed, the length of A-35 will increase to 55 km (34 mi).

Exit list

RCMLocationkmmiOld exitNew exitDestinationsNotes

I-89 south to US 7 south – St. Albans, Burlington
Future continuation into Vermont; current R-133 southern terminus
Canada–United States border at Highgate Springs–St. Armand/Philipsburg Border Crossing
3Chemin de Saint-ArmandFuture interchange; to be completed by 2025
6 R-133 (Chemin Champlain)Future interchange; to be completed by 2023
A-35 under construction; unopened south of R-133 (exit 15)
Le Haut-RichelieuSaint-Sébastien14.8123.8315 R-133 to R-227 / R-202 / I-89 – Bedford, Vermont, Henryville, Venise-en-QuébecAt-grade intersection; future interchange; to be completed by 2023; current A-35 southern terminus
Saint-Jean-sur-Richelieu35.5057.1336 R-133 south (Chemin de la Grande-Ligne) / Boulevard d'Iberville – Sainte-Anne-de-SabrevoisNorthbound exit and southbound entrance
37.6160.53138 R-133 south (Chemin de la Grande-Ligne) / Boulevard d'Iberville – Sainte-Anne-de-SabrevoisSouth end of R-133 concurrency; southbound exit and northbound entrance
39.1863.05339 R-104 east – Mont-Saint-Grégoire, CowansvilleSouth end of R-104 concurrency
42.2167.93642 R-133 north (Chemin des Patriotes) – RichelieuSouth end of R-133 concurrency
43.5570.09743 R-223 (Boulevard du Séminaire) – Centre-VilleSigned as exits 43N (north) and 43S (south)
44.8872.23945 R-219 (Rue Pierre-Caisse)
46.6475.061147 R-104 west (Boulevard Saint-Luc) – La PrairieNorth end of R-104 concurrency; signed as exits 47E (east) and 47O (west)
50.5281.301450Chemin St-André
La Vallée-du-RichelieuCarignanChambly line54.9988.501855 A-10 (Autoroute des Cantons-de-l'Est) – Montréal, Sherbrooke
Boulevard Fréchette – Chambly
Signed as exits 55E (east) and 55O (west); A-10 exit 22; A-35 northern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ Ministère des transports, "Distances routières", page (?), Les Publications du Québec, 2005
  2. ^ A-35 at
  3. ^ a b "Répertoire des autoroutes du Québec". Transports Québec. Archived from the original on 2010-01-11. Retrieved 2008-02-23.
  4. ^ a b "Autoroute 35 - Extension". Transports-Quebec. Archived from the original on 4 August 2012. Retrieved 25 February 2012.
  5. ^ a b c "L'autoroute 35 sera complétée d'ici 2023". Agence QMI. Retrieved 3 June 2020.
  6. ^ "Vallee des Forts Autoroute". Retrieved 25 February 2012.
  7. ^ "Quebec's Highway 35 to be extended but still not to U.S. border". Retrieved 29 March 2020.
  8. ^ "1236 Rang des Ducharme". Retrieved March 8, 2022.
  9. ^ a b "Autoroute 35 entre Saint-Jean-sur-Richelieu et la frontière américaine – Construction". Ministère des Transports. Retrieved March 8, 2022.
  10. ^ "A-35, échangeur Saint-Armand Nord / Route 133 et chemin Champlain" (PDF). Ministère des Transports. Retrieved May 12, 2022.
  11. ^ "Autoroute 35 entre Saint-Jean-sur-Richelieu et la frontière américaine – Construction". Ministère des Transports. Retrieved May 12, 2022.

External links