Route 335
Route 335 south as Laurentides boulevard in Pont-Viau, Laval.
Route information
Maintained by Transports Québec
Length	85.5 km[1] (53.1 mi)
History	Route 65
Major junctions
South end	R-138 in Montréal
Major intersections	A-40 (TCH) in Montréal A-19 / A-440 in Laval A-640 in Bois-des-Filion R-158 in Saint-Lin-Laurentides
North end	R-125 in Chertsey
Location
Country	Canada
Province	Quebec
Major cities	Montreal, Laval, Terrebonne
Highway system
Quebec provincial highways Autoroutes List Former
← R-333 → R-337

Route 335 is a north-south regional route located on the north shore of the St. Lawrence River. from Montreal It serves the administrative regions of Montreal, Laval, Laurentides, and Lanaudière. It is the only secondary road whose route crosses the Island of Montreal. Between Autoroute 440 in Laval and Côte-Saint-Louis Road in Terrebonne, Route 335 is located in the right-of-way of the future Autoroute 19.

Route description

Route 335 begins in Montreal at Sherbrooke Street (Route 138) and follows Saint Denis Street. North of the Autoroute 40, Route 335 splits to a one-way pair, following Berri Street southbound and Lajeunesse Street northbound, and then crosses the Viau Bridge over Rivière des Prairies to Laval. It follows Laurentian Boulevard to Autoroute 440 on Laurentian Boulevard. Route 335 once followed the entire length of Laurentian Boulevard to the David Bridge on the Rivière des Mille Îles, but now concurrently with Autoroute 440 for about 1.5 km (0.9 mi) to Autoroute 19. Between Autoroute 440 and Dagenais Boulevard, it is co-signed with Autoroute 19, and continues on the Autoroute 19 right-of-way. North of the bridge, the Route 335 once ran along Montée Gagnon from Route 344 northwards, but now follows the Autoroute 19 right-of-way along Louis-Joseph-Papineau Boulevard to Côte-Saint-Louis Road East (French: chemin de la Côte-St-Louis est). North of chemin de la Côte-St-Louis est, Route 335 runs along Montée Gagnon and its historic route.

Formerly Route 65, it was an alternative to Routes 11 and 18.

Future

There are plans to extend Autoroute 19 along Route 335 to Autoroute 640 in Bois-des-Filion with anticipated completion in 2027, with the first phase being 1.5 km (0.9 mi) extension and an interchange at Rue Saint-Saëns. The project includes four new interchanges, reconstruction of the Autoroute 640 interchange, and twinning the Athanase David Bridge.^[2][3]

Municipalities along Route 335

• Montreal (Le Plateau-Mont-Royal / Rosemont–La Petite-Patrie / Villeray–Saint-Michel–Parc-Extension / Ahuntsic-Cartierville)
• Laval (Pont-Viau / Vimont / Auteuil)
• Bois-des-Filion
• Terrebonne
• Sainte-Anne-des-Plaines
• Terrebonne (La Plaine)
• Saint-Lin-Laurentides
• Saint-Calixte
• Chertsey

Major intersections

RCM	Location	km[1]	mi	Exit	Destinations	Notes
Montréal	Montréal	0.0	0.0		Rue Saint Denis Rue Sherbrooke (R-138)	R-335 southern terminus; Rue Saint Denis continues south
		6.4	4.0		A-40 (TCH) (Autoroute Métropolitaine)	Access via Boulevard Crémazie service roads; A-40 exits 71 (eastbound) and 73 (westbound); one-way transition, northbound follows Rue Lajeunesse, southbound follows Rue Berri
		9.5	5.9		One-way transition	North end of one-way pair; becomes Boulevard des Laurentides
Rivière des Prairies		9.5– 9.9	5.9– 6.2	Pont Viau (Viau Bridge)
Laval		13.3	8.3		Boulevard Saint-Martin	Former R-148
		14.8	9.2	25	A-440 west (Autoroute Jean-Noël-Lavoie) / Boulevard des Laurentides	A-440 exit 25; south end of A-40 concurrency; exit numbers follow A-440
		15.7	9.8	25 27	Boulevard René-Laennec	Signed as exits 25 (eastbound) and 27 (westbound)
		16.8	10.4	27 8	A-19 south (Autoroute Papineau) – Montréal A-440 east (Autoroute Jean-Noël-Lavoie)	North end of A-440 concurrency; south end of A-19 concurrency; A-440 exit 27; A-19 exit 8
		18.5	11.5		A-19 ends / Boulevard Dagenais Est / Boulevard des Grands-Maîtres	At-grade; A-19 northern terminus; becomes Avenue Papineau; future interchange as part of A-19 extension[2]
		21.9	13.6		Rue Saint-Saëns Est	Future interchange as part of A-19 extension[2]
		23.7	14.7		Boulevard des Laurentides / Boulevard des Mille-Îles	Future interchange as part of A-19 extension[2]
Rivière des Mille Îles		24.3– 24.6	15.1– 15.3	Pont Athanase-David (Athanase David Bridge)
Thérèse-De Blainville	Bois-des-Filion	25.1	15.6		R-344 (Boulevard Adolphe-Chapleau) – Rosemère, Terrebonne	Future interchange as part of A-19 extension[2]
		26.0	16.2		A-640 – Repentigny, Saint-Eustache	A-640 exit 28; future A-19 northern terminus[2]
Les Moulins – Thérèse-De Blainville boundary	Terrebonne – Blainville boundary	31.1	19.3		Montée Gagnon / Chemin de la Côte-Saint-Louis
Les Moulins	No major junctions
Thérèse-De Blainville	No major junctions
Les Moulins	Terrebonne (La Plaine)	45.3	28.1		R-337 south – Terrebonne	South end of R-337 concurrency
Montcalm	Saint-Lin-Laurentides	52.1	32.4		R-158 west / R-339 south – Saint-Jérôme, Saint-Roch-Ouest	South end of R-158 concurrency; R-339 northern terminus
		53.8	33.4		R-158 east – Saint-Esprit	North end of R-158 concurrency
		57.0	35.4		R-337 north – Sainte-Julienne	North end of R-337 concurrency
	Saint-Calixte	74.9	46.5		Chemin du Lac de l'Achigan – Saint-Hippolyte	To R-333
	Chertsey – Rawdon boundary	85.5	53.1		R-125 – Rawdon, Saint-Donat
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus       Unopened