Quebec Autoroute 25

Autoroute 25
Autoroute Louis-H-Lafontaine
Route information
Maintained by Transports Québec
Length:	21.8 km (13.5 mi)
Existed:	1967 – present
Major junctions
South end:	A-20 in Longueuil
	A-40 in Montreal A-440 in Laval A-640 near Terrebonne
North end:	Route 125 / Route 158 near Saint-Esprit
Location
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-Lafontaine in Montreal) is an Autoroute in the Lanaudière region of Quebec. It is currently 49 km (30.4 mi) long.

A-25 begins at an interchange with Autoroute 20 and Route 132 in Longueuil and quickly enters the Louis Hippolyte Lafontaine 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).

North of the interchange with Autoroute 40, a gap existed in A-25, and 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 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.

The autoroute 25.

Riviere des Praries Bridge.

Montreal-Laval Extension

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 spans the Rivière des Prairies and costs motorists $1.80, or $2.40 from 6 to 9 AM and 3:30 to 6:30 PM, per crossing (plus administration fees for those 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 loses 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 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.

Future Northern extensions

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 Rawdon, which is 4-lane except for the northernmost section which is 2 lanes

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

Exit list

Municipality	No.	Destinations	Notes
Longueuil	90 (?)	A-20 east / TCH east to A-30 – Québec, Sorel-Tracy	Southbound exit and northbound entrance
	90	A-20 west / Route 132 to A-15 – Varennes, La Prairie, USA	Southbound exit and northbound entrance
	1	Île Charron, Îles de Boucherville
	Louis Hippolyte Lafontaine Tunnel across the Saint Lawrence River
Montreal
	4	Montréal Centre-ville
	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	North end of TCH overlap; signed as exits 8-E (east) and 8-O (west)
	9-A	Rue Bombardier	Northbound exit and southbound entrance
	9-B	Rue Larrey	Northbound exit and southbound entrance
	10	Boulevard Henri-Bourassa
	11	Boulevard Maurice-Duplessis, Boulevard Perras
	A-25 Bridge (Toll) over the Rivière des Prairies
Laval
	14	Boulevard Lévesque
	16	Route 125 (Montée Masson) / Rang du Bas-Saint-François, Avenue Marcel Villeneuve
	20	Boulevard des Mille Îles
	Pont Matthieu and Pont Lepage over the Rivière des Mille Îles
Terrebonne
	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) – Terrebonne, La Plaine
	24	Route 125 (Montée Masson) – Lachenaie	Southbound exit is part of exit 25
	25	A-640 to A-40 – Repentigny, Québec, Saint-Eustache
Mascouche
	28	Boulevard Sainte-Marie - Mascouche
	30	Rue Saint-Pierre
	34	Boulevard Saint-Henri - L'Épiphanie
Saint-Roch-de-l'Achigan	41	Rang du Ruisseau-des-Anges Sud
	44	Route 339 (Route 125 south) – Saint-Roch-de-l'Achigan	South end of Route 125 overlap
Saint-Roch-Ouest
	46	Route 158 west – Saint-Lin-Laurentides, Saint-Jérôme	South end of Route 158 overlap
Saint-Esprit

See also

Pie IX Bridge List of bridges spanning the Rivière des Prairies List of bridges Spanning the Saint Lawrence River

List of crossings of the Rivière des Mille Îles List of crossings of the Rivière des Prairies List of crossings of the Saint Lawrence River

External links

• MTQ information sheet on 2010 construction of A-25 toll bridge segment between Montreal and Laval
• A-25 at Exitlists.com
• A-25 at Quebec Autoroutes
• Transports Quebec Map (French)
• Autoroute 25 @ AsphaltPlanet.ca

Preceded by Autoroute 40

Trans-Canada Highway Autoroute 25

Succeeded by Autoroute 20