Route 143 is a north/south highway on the south shore of the Saint Lawrence River. Until the mid 1970s when the province decided to renumber all highways, less autoroutes, it was known as Route/Highway 5. Its northern terminus is in Saint-François-du-Lac at the junction of Route 132, and the southern terminus is in Stanstead at the border with Vermont where the road continues as U.S. Route 5 in Derby Line.

Since Autoroute 55 closely parallels Route 143 for most of its length,much commercial traffic chooses the former. However it is a very busy route, taking much traffic from the border to the Sherbrooke local area. Route 143 closely follows the Saint-François River between Sherbrooke and Ulverton.

The road is often in notoriously poor condition, given its original cement was laid directly on a gravel road in the mid 1920s. In the years since it has been extensively resurfaced to the point the pavement is now more than three feet thick in places. Nonetheless it heaves extensively each spring thaw.

Municipalities along Route 143

• Stanstead
• Stanstead-Est
• Hatley
• Waterville
• Sherbrooke - (Lennoxville / Sherbrooke / Bromptonville)
• Val-Joli
• Windsor
• Cleveland
• Richmond
• Ulverton
• L'Avenir
• Drummondville - (Saint-Nicéphore / Drummondville / Saint-Majorique-de-Grantham)
• Saint-Bonaventure
• Saint-Pie-de-Guire
• Saint-François-du-Lac

Major intersections

RCM or ET	Municipality	Km	Junction	Notes
Memphrémagog	Stanstead	0.0		5 SOUTH: to Derby Line, Vermont
		0.2 0.3		247 NORTH: to Ogden 247 SOUTH: to
		2.4 2.8		55 SOUTH: to in Derby Line, Vermont 55 NORTH: to Stanstead-East
	Stanstead-East	17.6		141 NORTH: to Ayer's Cliff 141 SOUTH: to Barnston-Ouest
	Hatley	22.0	(Overlap 0.6km)	208 WEST: to Ayer's Cliff 208 EAST: to Compton
Coaticook	Waterville	36.2	Rue Gosselin	EAST: to Waterville
		40.8	(Overlap 6.0km)	108 WEST: to Hatley Township
		44.1		147 SOUTH: to Compton
Sherbrooke	Lennoxville	46.8	(Overlap 6.0km)	108 EAST: to Eaton
	Sherbrooke	50.8		216 WEST: to Magog 216 EAST: to Stoke
		51.9		112 WEST: to Rock Forest (Sherbrooke) 112 EAST: to Fleurimont (Sherbrooke)
	Bromptonville	58.3	(East end)	222 WEST: to Saint-Denis-de-Brompton
		61.8	Rue Laval	WEST: to
Le Val-Saint-François	Windsor	74.7		249 SOUTH: to Saint-François-Xavier-de-Brompton 249 NORTH: to Val-Joli
	Richmond	90.2	(Overlap 1.9km)	116 EAST: to Cleveland
		91.3	(Overlap 1.1km)	243 NORTH: to Saint-Félix-de-Kingsey
		92.1	(Overlap 1.9km)	116 WEST: to Durham-Sud
		92.4	(Overlap 1.1km)	243 SOUTH: to Melbourne
Drummond	Saint-Nicéphore	120.6	(North end)	139 SOUTH: to Wickham
	Drummondville	129.2 129.5	(Overlap 0.3km)	122 EAST: to Saint-Charles-de-Drummond (Drummondville) 122 WEST: to Saint-Germain-de-Grantham (Drummondville)
		131.9 132.2		20 EAST: to Saint-Cyrille-de-Wendover 20 WEST: to Saint-Eugène
	Saint-Bonaventure	148.8	(East end)	224 WEST: to Saint-Guillaume
Nicolet-Yamaska	Saint-François-du-Lac	165.8		132 WEST: to Saint-Gérard-Majella 132 EAST: to Pierreville

See also

• List of Quebec provincial highways

References

External links

• Interactive Provincial Route Map (Transports Québec)
• Route 143 on Google Maps