| Route 104 in Farnham|
| 34.2 km|
| Route 231 in Saint-Damase|Farnham
Quebec Route 233 Wikipedia
Route 233 is a provincial highway located in the Montérégie region of Quebec east of Montreal. The highway links Farnham and Saint-Césaire with Saint-Hyacinther. It starts at a junction with Route 104 between Farnham and Sainte-Brigide-d'Iberville, next to a training facility of the Canadian Forces and runs north toward a parclo interchange with Autoroute 10 after which it crosses the Rivière du Sud-Ouest which it follows for a few kilometers until its headwaters on Yamaska River. Shortly after it runs through Saint-Césaire, crossing Route 112, before continuing to follow the Yamaska until its end at the junction of Route 231.