Provincial Highway 171 (Route 171) is a north/south highway on the south shore of the St. Lawrence River. Its southern terminus is in Scott at the junction of Route 173 and its northern terminus is in Lévis at the junction of Route 132. Route 171 follows the Chaudière River for most of its course, from the former town of Saint-Étienne-de-Lauzon up to Scott. The Saint Lawrence River (French fleuve Saint-Laurent) is a large west-to-east flowing river in the middle latitudes of North America, connecting the Great Lakes with the Atlantic Ocean. ... Lévis (officially Ville de Lévis) is a city in eastern Quebec, Canada. ... It has been proposed below that Quebec provincial highway 132 be renamed and moved to Quebec route 132. ...

Since it parallels Autoroute 73, and as it is located on the western side of the Chaudiere (whereas most town centres are located on the eastern side), Route 171 is far from being a busy highway. It is actually surprising that it was numbered as a 100 series as a principal highway considering the low traffic and low importance in regards to linking important towns.

See also

• List of Quebec provincial highways