Quebec Autoroute 15

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Autoroute 15 shieldTrans-Canada Highway shield

Autoroute 15
Autoroute Décarie
Autoroute des Laurentides
Route information
Maintained by Transports Québec
Length: 164.0 km[3][1] (101.9 mi)
Existed: 1958 [1][2] – present
Major junctions
South end: I-87 / US 9 in Champlain, NY
  A-30 / A-930 in Candiac
A-10 / A-20 in Brossard
A-10 in Montréal
A-20 / A-720 in Montréal
A-40 (TCH) in Montréal
A-440 in Laval
A-640 in Boisbriand
A-50 in Mirabel
North end: Route 117 (TCH) in Sainte-Agathe-des-Monts
Location
Major cities: La Prairie, Brossard, Montreal, Laval, Boisbriand, Blainville, Mirabel, Saint-Jérôme
Highway system

Quebec provincial highways

A-13 A-19

Autoroute 15 (also called the Décarie Expressway (English) or Autoroute Décarie (French) between the Turcot and Décarie Interchanges in Montreal and the Laurentian Autoroute (English) or Autoroute des Laurentides (French) north of Autoroute 40) is a highway in western Quebec, Canada. It was, until the extension of Autoroute 25 was opened in 2011, the only constructed north-south autoroute to go out of Montreal on both sides. A-15 begins at the end of Interstate 87 at the United States border at Saint-Bernard-de-Lacolle to Sainte-Agathe-des-Monts with an eventual continuation beyond Mont-Tremblant. The total length of A-15 is currently 164 km (101.9 mi), including a short concurrency (4 km or 2.5 mi) with Autoroute 40 (Boulevard/Autoroute Métropolitan) that connects the two main sections. This is one of the few autoroutes in Quebec that does not have any spinoff highways.

Road description[edit]

Southern section[edit]

Autoroute 15 in Montreal, facing southwards at the Autoroute 20 junction (Exit 63)

The southern section of A-15 connects the south shore suburbs of Montreal and is also the primary trade corridor route between Montreal & New York City linking Quebec Autoroute 15 to Interstate 87 at the Canada-United States border at the Champlain-St. Bernard de Lacolle Border Crossing. This was the former Route 9, and connected with US 9 on the western shore of Lake Champlain. In Brossard, it joins up with A-10 and A-20 across the Champlain Bridge into Montreal. The A-10 splits off almost immediately after crossing the bridge to head into downtown Montreal at the Bonaventure Expressway and the A-20 splits off shortly after at the Turcot Interchange (échangeur Turcot), leaving the A-15 to continue northward as Autoroute Décarie until the Décarie Interchange (échangeur Décarie) with the A-40 at the point where it turns from the Trans-Canada into the Metropolitan Expressway.

The route is also connected to Autoroute 30 in Candiac which was completed to Autoroute 20 in 2012 providing a quicker access to the south shore of Montreal, to southern communities located alongside Autoroute 15 and to the Canada–US border in Lacolle. It will also give a quicker access from there to areas west of Montreal and also Ottawa and Gatineau.

Décarie Autoroute[edit]

Autoroute 15 (Autoroute Décarie) in Notre-Dame-de-Grâce, looking north.

The Décarie Autoroute is a sunken highway between the northbound and southbound lanes of Decarie Boulevard from the Metropolitan Autoroute at its northern end to Monkland Avenue and the Villa Maria Metro station at its southern end. It was built on a wide expanse of vacant land, donated to the city by the Décarie estate on the condition that only a streetcar line be established. The decommissioning of the streetcar system in 1959 left the right-of-way as an obvious choice for a highway, and so the Décarie Autoroute was dug there. South of Queen Mary Road, however, were a significant number of houses that were demolished. In order to avoid demolishing the Notre-Dame-de-Grâce church, the highway makes a slight westerly jog below Côte-Saint-Luc Road and runs through a short tunnel, before emerging between Addington and Botrel Streets and running down to Sherbrooke Street and Saint Jacques Street, where it spectacularly goes from below-ground to well above ground as it intersects with Autoroutes 20 and 720 in the infamous Turcot Interchange (dubbed "Spaghetti Junction" by train crews operating the former CN Rail Turcot Yard). Following the conversion from streetcar line to highway, the Décarie Estate unsuccessfully sued the city but was unable to prevail because they did not document their case well enough for the nevertheless sympathetic court.

Decarie Boulevard itself continues; from Monkland Avenue south to Saint Jacques Street and McGill University Health Centre Glen Campus superhospital; and from Autoroute 40 north into Ville Saint-Laurent past Du College Station and Côte-Vertu Station/Norgate shopping centre.

Northern section[edit]

After its concurrency with A-40, the northern section of A-15 is the main freeway route to the Laurentians until it downgrades to Route 117. It also links up to the northern suburbs of Montreal, as well as provides a connection to the A-440, A-640 and the A-50 in Mirabel. The first section from A-40 to Saint-Jérôme was opened in 1958 as a toll road, although the tolls were removed in 1985. This section was also the first to be designed as an autoroute in the province. It was named Autoroute Montréal-Laurentides during the 1960s.[4]

Over the next years, it was extended north to Sainte-Agathe-des-Monts as a new connection to touristic and skiing destinations in the Laurentides including in Saint-Sauveur, Sainte-Adèle, Mont-Gabriel and Estérel. In the future, it is possible that the A-15 may continue even farther north, past Mont-Tremblant, as Route 117 is already an at-grade expressway with a freeway bypass of Saint-Jovite completed, and the name Autoroute des Laurentides is also recognized on the freeway bypass (and exit numbers continue). This section is numbered separately from the southern section as if it were a different route. The northern route is also part of the Trans-Canada Highway.

Exit list[edit]

Exit numbering resets at the two interchanges with Autoroute 40 in Montréal.

Region Location km mi Exit Destinations Notes
Continues as I-87 south (Adirondack Northway) / US 9 south – Albany, New York
Montérégie Saint-Bernard-de-Lacolle 0.00 0.00 Canada–United States border
Champlain–St. Bernard de Lacolle Border Crossing
1 Montée Glass / Montée Guay Also signed as a u-turn
6 Route 202 – Hemmingford, Saint-Bernard-de-Lacolle, Lacolle
11 Montée Henrysburg
13 Montée Murray Southbound exit only
Saint-Patrice-de-Sherrington
Saint-Jacques-le-Mineur
21 Route 219 / Route 221 – Napierville, Sherrington Also serves Route 217
Saint-Édouard 29 Saint-Édouard, Saint-Jacques-le-Mineur Via Montée du Moulin
Saint-Mathieu 38 Saint-Mathieu, Saint-Philippe Via Montée Monette
Candiac 40 A-30 west (Autoroute de l'Acier) – Pont Honoré-Mercier, Vaudreuil-Dorion Exit 55 on A-30; opened December 2010
42 A-30 east / Route 132 west (via A-930) – Sorel-Tracy, Québec, Saint-Constant, Sainte-Catherine Southern terminus of concurrency with Route 132; shared ramp with exit 40 northbound
44 Boulevard Montcalm – Candiac
45 Route 134 east (Boulevard Taschereau) – La Prairie Northbound exit and southbound entrance; south end of Route 134
La Prairie 46 Boulevard Salaberry – La Prairie
47 Rue Saint-Henri – La Prairie Northbound exit and entrance
49 Rue du Quai Southbound exit and entrance; to Parc de la Marina
Brossard 50 Boulevard Matte
51 Boulevard Rivard Southbound exit is via exit 50
Rue Riviera Southbound exit and entrance
52 Boulevard Rome
53 A-10 east (Autoroute des Cantons-de-l'Est) to A-30 / I-89 – Sherbrooke, Vermont
A-20 east (Autoroute René-Lévesque) / Route 132 east – Longueuil, Varennes
A-15 branches west; northern terminus of concurrency with Route 132;
southern terminus of concurrency with A-10 and A-20; exit 6 on A-10
St. Lawrence River Pont Champlain
Montreal Montreal 57 Île de Sœurs Northbound exit and entrance
57N Chemin de la Pointe-Nord Road Southbound exit and entrance
57S Boulevard de l'Île des Soeurs Southbound exit and entrance
58 A-10 west (Autoroute Bonaventure) – Centre-Ville Northern terminus of concurrency with A-10; signed as exit 57O (west) southbound
60 A-10 west (Autoroute Bonaventure) / Rue Wellington – Centre-Ville, Verdun Northbound access to A-10 is via exit 58; exit 4 on A-10
61 Rue Saint Patrick / Avenue Atwater
62 Boulevard de La Vérendrye / Avenue de l'Église
63 A-20 west (Autoroute du Souvenir) / A-720 east (Autoroute Ville-Marie) – Centre-Ville, Aéroport P.-E.-Trudeau, Toronto Turcot Interchange
Northern terminus of concurrency with A-20; signed as exits 63E (east) and 63O (west) southbound; A-20 exit 68; A-720 exit 1
Southern terminus of Autoroute Décarie
64 Rue Sherbrooke (Route 138) / Rue Saint-Jacques
66 Chemin Côte-Saint-Luc / Chemin Queen-Mary / Chemin de la Côte-Sainte-Catherine
69 Rue Jean-Talon / Rue de la Savane / Avenue Van Horne / Chemin de la Côte-Sainte-Catherine
70
66[i]
A-40 (TCH) west (Autoroute Félix-Leclerc) to A-520 – Aéroport P.-E.-Trudeau, Gatineau, Ottawa Décarie Interchange
A-15 branches east; southern terminus of concurrency with of A-40
Boulevard Marcel-Laurin (Route 117 north) / Boulevard Décarie Northbound exit, southbound entrance
Northern terminus of Autoroute Décarie
68[i] Rue Stinson / Chemin Rockland / Boulevard de L'Acadie Northbound exit and southbound entrance
70[i]
1
A-40 (TCH) east (Autoroute Métropolitaine) to Route 335 (Rue Saint-Denis) / Boulevard Saint-Laurent – Québec A-15 branches north; northern terminus of concurrency with A-40
Boulevard Marcel-Laurin (Route 117 north) / Chemin Rockland / Boulevard de L'Acadie Southbound exit
Southern terminus of Trans-Canada Highway designation and Autoroute des Laurentides
2 Boulevard de la Côte-Vertu – Saint-Laurent Southbound exit and northbound entrance
Rue Sauvé / Boulevard Henri-Bourassa / Boulevard de L'Acadie Northbound exit and entrance
3 Boulevard Henri-Bourassa Northbound exit is via exit 3
4 Rue de Salaberry Signed as exits 4E (east) and 4O (west) southbound; no southbound entrance
Rivière des Prairies Pont Médéric-Martin
Laval 7 Boulevard Cartier / Boulevard de la Concorde / Boulevard Notre-Dame Northbound entrance and exit via Le Corbusier Boulevard
8 Boulevard Saint-Martin Southbound exit is via exit 10
10 A-440 (Autoroute Laval) / Boulevard le Carrefour Exit 22 on A-440
14 Route 117 (Boulevard Curé Labelle) / Boulevard Dagenais west Signed as exits 14N (north) and 14S (south) southbound
16 Boulevard Sainte-Rose / Avenue de la Renaissance
Rivière des Mille Îles Gedeon Ouimet Bridge
Laurentides Boisbriand 19 Route 344 – Boisbriand, Rosemère
Boisbriand
Sainte-Thérèse
20 A-640 to A-13 – Repentigny, Québec, Boisbriand, Saint-Eustache, Sainte-Thérèse, Aéroport P.-E.-Trudeau Signed as exits 20E (east) and 20O (west); exit 20 on A-640
23 Rue Saint-Charles – Saint-Augustin Centre-Ville Sainte-Thérèse
Blainville 25 Boulevard de la Seigneurie – Blainville
MirabelBlainville 28 Boulevard Michèle-Bohec / Chemin Notre-Dame – Mirabel, Blainville
Mirabel 31 Saint-Janvier, Sainte-Monique Via Rue Charles
35 A-50 to Route 117 (Boulevard Mirabel) – Gatineau, Lachute, Aéroport Mirabel, Saint-Jerome, Saint-Janvier Exit 282 on A-50
39 Route 158 (Route Sir-Willfrid-Laurier) – Saint-Canut, Sainte-Sophie
Saint-Jérôme 41 Boulevard du Grand-Héron
43 Rue De Martigny Ouest – Centre-Ville Saint-Jérôme, Saint-Colomban, Mille-Isles Signed as exits 43E (east) and 43O (west)
45 Route 117 / Route 333 / Boulevard de La Salette – Prévost, Saint-Hippolyte No direct southbound access to Routes 117 and 333
51 Aire de Service La Porte du Nord (service centre)
Prévost 55 Prévost Northbound exit and southbound entrance
Sainte-Anne-des-Lacs 57 Route 117 – Sainte-Anne-des-Lacs No southbound exit
58 Chemin Avila – Piedmont
Saint-Sauveur 60 Route 364 – Saint-Sauveur, Morin-Heights, Piedmont, Saint-Adolphe-d'Howard
Sainte-Adèle 64 Chemin du Mont-Gabriel
67 Route 117 – Centre-Ville Sainte-Adèle Northbound exit and southbound entrance
69 Route 370 (Chemin Pierre-Péladeau) – Sainte-Adèle, Sainte-Marguerite-du-Lac-Masson, Estérel
72 Chemin du Mont-Sauvage / Montée à Séraphin – Sainte-Adèle Northbound exit and southbound entrance
Val-Morin 76 Route 117 – Val-Morin, Val-David Northbound exit and southbound entrance
Val-David 80 Val-David, 7e Rang Northbound exit and southbound entrance
Sainte-Agathe-des-Monts 83 Route 329 south / Montée Alouette – Saint-Adolphe-d'Howard Northbound exit and southbound entrance
86 Route 117 – Centre-Ville Sainte-Agathe-des-Monts
88 Rue Demontigny Northbound exit and southbound entrance
89 Route 117 south (Boulevard Morin) / Route 329 – Saint-Donat, Lanaudière Northbound exit and southbound entrance
Route 117 (TCH) north (Route Transcanadienne) Trans-Canada Highway follows Route 117 north
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Disasters[edit]

On June 18, 2000, the southern portion of the Boulevard du Souvenir overpass in Laval (which crosses over Quebec Autoroute 15), under reconstruction, collapsed into the roadway, killing one and injuring two when cars were crushed underneath the structure. Sixteen beams weighing about 70 tons each fell. The contractor was faulted for shoddy work. The arched concrete beams were unsecured and tipped over like dominoes, many of them breaking into pieces.

The expressway has also seen flooding. On July 14, 1987, a sudden torrential downpour caused by an HP supercell thunderstorm dumped over 100 millimetres (4 inches) of rain in just over one hour across the city. The Décarie Expressway, which is below-grade, was heavily flooded and became a river. At some locations, the water reached a maximum of 3.6 metres in depth on the roadway. Over 300 vehicles were abandoned when they were submerged. Two people were killed by the storm.[5] One 80-year-old man on the Expressway drowned and another one was killed by electrical wires. On July 5, 2005, another torrential downpour flooded portions of the Expressway after several manhole covers blew open from the storm sewers below them being overloaded.[6]

See also[edit]

Notes[edit]

  1. ^ a b c Cite error: The named reference 40_exit was invoked but never defined (see the help page).

References[edit]

External links[edit]

Route map: Google

KML is from Wikidata
Preceded by
Qc117.svg Route 117
Trans-Canada Highway
Quebec Autoroute 15.svg Autoroute 15
Succeeded by
Quebec Autoroute 40.svg Autoroute 40