Quebec Autoroute 25

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Autoroute 25 shield

Autoroute 25
Autoroute Louis-H.-La Fontaine
Route information
Maintained by Transports Québec
Length: 21.8 km[1][2] (13.5 mi)
Existed: 1967[1] – present
Major junctions
South end: A-20 (TCH) in Longueuil
  A-40 (TCH) in Montreal
A-440 in Laval
A-640 between Terrebonne and Mascouche
North end: Route 125 / Route 158 in Saint-Esprit
Major cities: Boucherville, Montreal, Laval, Terrebonne, Mascouche
Highway system

Quebec provincial highways

A-20 A-30

Autoroute 25 (or A-25, also called Autoroute Louis-H.-La Fontaine in Montreal) is an Autoroute in the Lanaudière region of Quebec. It is currently 49 km (30.4 mi) long and services the direct north of Montreal's Metropolitan Area. The A-25 has one toll bridge, which is the first modern toll in MMA and one of two overall in Quebec (after being joined by the A-30 toll bridge, which opened in 2012).

A-25 begins at an interchange with Autoroute 20 and Route 132 in Longueuil and quickly enters the Louis Hippolyte Lafontaine Bridge-Tunnel into the east end of Montreal. It is the main north-south freeway in the east end of Montreal (actually northwest-southeast but perpendicular to the St. Lawrence River).

Before the Montreal-Laval Extension, a gap existed in A-25 north of the interchange with Autoroute 40. Instead it followed Boulevard Henri-Bourassa to Boulevard Pie-IX, both of which are principal urban arterial roads. Boulevard Pie-IX north of Boulevard Henri-Bourassa was used as a temporary section of Autoroute 25 across the Rivière-des-Prairies to Autoroute 440. From there, A-25 proceeded east with A-440, then continued north and east of Laval.

The designation of Autoroute Louis-H.-Lafontaine is named after Louis Hippolyte Lafontaine, a 19th-century Lower Canada leader of what was then the Province of Canada.

A-25 is also part of the Trans-Canada Highway between the A-20 and A-40 interchanges.

Montreal-Laval Extension[edit]

Autoroute 25 in the Montreal Region.

Autoroute 25 has been extended under a public-private partnership. The 7.2 km section of highway joins the southern part of Autoroute 25 at Boulevard Henri-Bourassa in Montreal's East end and the northern part at Laval's Autoroute 440. The $207-million project will save some $226 million for the province since a private consortium will assume any cost overruns. A toll bridge using a RFID transponder automatic payment system spans the Rivière des Prairies and costs transponder-owning motorists $2.48 per crossing at peak hours (6-9 AM and 3:30-6:30 PM) and $1.86 per crossing the rest of the day. An additional $5.15 in administration fees is charged for motorists without transponders. The road opened on May 21, 2011. The highway has six lanes (three in each direction), while the bridge features three lanes in each direction with one reserved for public transit.

Now that the link between Montreal and Laval is complete, the temporary autoroute section connecting Boulevard Pie-IX to Autoroute 440 lost its A-25 designation. The new route designation for this section is Route 125.

The new span effectively joins the North Shore, Laval, Montreal, and the South Shore. In addition, the completion of Autoroute 30 also created under a public-private partnership, will help reduce traffic in the City of Montreal by offering a southern by-pass route.

Environmental organizations have raised concerns that the highway extension will lead to an influx of automobiles entering Montreal and increase development pressure on agricultural land in Eastern Laval.[3][4]

Construction history[edit]


Kilometre Year Notes
0 to 4 1967 Louis Hippolyte Lafontaine Bridge-Tunnel
4 to 7 1966 Avenue Souligny, Montreal to A-40/TCH, Montreal
7 to 10 2002 A-40/TCH, Montreal to Boulevard Henri-Bourassa, Montreal
10 to 17 2011 Boulevard Henri-Bourassa, Montreal to A-440, Laval
12 to 44 1971 From A-440, Laval to Chemin du Ruisseau Saint-Jean, Saint-Roch-Ouest
44 to 46 1999 Ruisseau Saint-Jean, Saint-Roch-Ouest to Rue Montcalm, Saint-Esprit
46 to end 2001 Rue Montcalm, Saint-Esprit to Route 125, Saint-Esprit

Future Northern extensions[edit]

The autoroute 25.
Riviere des Praries Bridge.

In addition, significant extensions are possible in the north end, which would ultimately double the length of A-25, as follows:

  • New bypasses of Saint-Esprit, Sainte-Julienne and Rawdon which are currently proposed
  • Upgrading of an at-grade expressway section of Route 125 north of Chertsey, which is 4-lane except for the northernmost section which is 2 lanes. Rte 125 will follow the course of the A-25 from there, much like Rte 117 continues the A-15 near Mont Tremblant.

The ultimate length of A-25 will likely be around 100 km (62.1 mi) long.

Exit list[edit]

Municipality No. Destinations Notes
Longueuil - A-20 (TCH) east to A-30 – Québec, Sorel-Tracy, Montréal/Saint-Hubert Airport Direct merger into A-20
- A-20 west / Route 132 to A-15 – Varennes, La Prairie, USA Direct split from A-20. Corresponds to exit 90 of the A-20 and exit 15 of the Rte 132
1 Île Charron to Îles de Boucherville national park
Louis Hippolyte Lafontaine Bridge-Tunnel across the Saint Lawrence River
4 Downtown Montreal
5 Route 138 (Rue Sherbrooke) / Rue Hochelaga, Rue Notre-Dame Signed as exits 5-E (east) and 5-O (west) northbound
6 Rue Beaubien, Boulevard Yves-Prévost Northbound exit is via exit 5-O
7 Boulevard Wilfrid-Pelletier, Boulevard Châteauneuf Northbound exit and southbound entrance
8 A-40 (TCH) west – Trois-Rivières, Québec, Gatineau, Ottawa, P.E. Trudeau Airport North end of TCH overlap; signed as exits 8-E (east) and 8-O (west)
9 Rue Bombardier Northbound exit and southbound entrance
9 Boulevard Henri-Bourassa, Rue Bombardier Southbound exit and Northbound entrance
10 Boulevard Henri-Bourassa, Boulevard Maurice-Duplessis, Boulevard Perras LAST EXIT BEFORE TOLL BRIDGE (for Northbound only) Northbound exit and southbound entrance
10 Boulevard Perras, Boulevard Maurice-Duplessis Southbound exit and Northbound entrance. Toll bridge.
Olivier Charbonneau Bridge (Toll bridge) over the Rivière des Prairies
14 Route 125 (Montée Masson) / Rang du Bas-Saint-François, Avenue Marcel Villeneuve, Boulevard Lévesque (Northbound exit)//

Boulevard Lévesque (Southbound exit)

LAST EXIT BEFORE TOLL BRIDGE (for Southbound only)
16 A-440 (Autoroute Laval)
20 Boulevard des Mille Îles
Pont Mathieu and Pont Lepage over the Rivière des Mille Îles
21 Île Saint-Jean
22 Route 344 (Boulevard des Seigneurs) – Terrebonne, Bois-des-Filion Northbound exit and southbound entrance; signed as exits 22-E (east) and 22-W (west)
23 Route 337 Boulevard Moody, Chemin Gascon
24 Route 125 Montée Masson, Grande-Allée Southbound exit is part of exit 25

A-640 to A-40 / Avenue de l'Esplanade – Repentigny, Québec, Saint-Eustache, Mirabel Airport

28 Chemin Sainte-Marie - downtown Mascouche
30 Chemin Saint-Pierre
34 Chemin Saint-Henri - L'Épiphanie
Saint-Roch-de-l'Achigan 38 Rue Armand-Majeau Northbound only
41 Rang du Ruisseau-des-Anges Sud
Saint-Roch-Ouest 44 Route 339 (Route 125 south) – Saint-Roch-de-l'Achigan South end of Route 125 overlap
Saint-Esprit 46 Route 158 west – Saint-Lin-Laurentides, Saint-Jérôme South end of Route 158 overlap

See also[edit]


  1. ^ a b "Répertoire des autoroutes du Québec" (in French). Transports Québec. Retrieved 2008-02-23. 
  2. ^ Ministère des transports, "Distances routières", page (?), Les Publications du Québec, 2005
  4. ^ Conseil Régional de l'environnement de Montréal. "10 raisons d'être contre le prolongement de l'autoroute 25" (PDF). CREMTL. Retrieved 7 March 2011. 
  5. ^ Transports Québec: "Répertoire des autoroutes du Québec", 2007.

External links[edit]

Route map: Bing / Google

KML is from Wikidata
Preceded by
Quebec Autoroute 40.svg Autoroute 40
Trans-Canada Highway
Quebec Autoroute 25.svg Autoroute 25
Succeeded by
Quebec Autoroute 20.svg Autoroute 20