Quebec Route 340

Route 340 is a provincial highway situated in the Montérégie region of Quebec west of Montreal. It runs for just over 40 kilometers from the Ontario-Quebec border in Saint-Télesphore (as a continuation of Stormont, Dundas and Glengarry County Road 18) and ends in Vaudreuil-Dorion at the junction of Autoroute 20.

Route 340
Route information
Maintained by Transports Québec
Length	40.2 km[1] (25.0 mi)
Major junctions
West end	County Road 18 at South Glengarry, Ontario
Major intersections	R-325 in Saint-Telesphore R-201 in Saint-Clet R-342 in Vaudreuil-Dorion A-30 in Vaudreuil-Dorion
East end	A-20 in Vaudreuil-Dorion
Location
Country	Canada
Province	Quebec
Highway system
Quebec provincial highways Autoroutes List Former
← R-339 → R-341

The route 340 from Ontario toward Saint-Télesphore

Municipalities along Route 340

A 2011 photo for the eastern terminal of Route 340 in Vaudreuil-Dorion installed during the city's former Dorion days prior to the Vaudreuil-Dorion merger of 1994.

• Saint-Télesphore
• Saint-Polycarpe
• Sainte-Justine-de-Newton
• Saint-Clet
• Les Cèdres
• Saint-Lazare
• Vaudreuil-Dorion

Major intersections

RCM or ET	Municipality	Km	Junction	Notes
Western terminus of Route 340
Vaudreuil-Soulanges	Sainte-Télesphore	0.0	Ontario County Road 18	WEST: to South Glengarry, Ontario
		2.8	R-325	325 SOUTH: to Rivière-Beaudette 325 NORTH: to Sainte-Justine-de-Newton
	Saint-Polycarpe	12.1	Chemin Sainte-Catherine	SOUTH: to Saint-Zotique
		15.0	Chemin Ranger	SOUTH: to Les Coteaux
	Saint-Clet	21.0	R-201	201 SOUTH: to Coteau-du-Lac 201 NORTH: to Hudson
	Vaudreuil-Dorion	34.3	R-342	342 SOUTH: to Vaudreuil-Dorion 342 NORTH: to Hudson
		34.8 35.2	A-30	30 SOUTH: to A-20 30 NORTH: to A-40 (TCH)
		40.1 40.2	A-20	20 WEST: to Les Cèdres 20 EAST: to Pincourt
Eastern terminus of Route 340

See also

• List of Quebec provincial highways