The Quebec government is planning a major overhaul of Highway 10 to add reserved lanes for buses and carpool vehicles, while upgrading aging infrastructure between Brossard and Carignan.

Transport Minister Benoit Charette says much of the work will take place during non-peak hours, and South Shore residents will greatly benefit from the project.

The project will cost an estimated $360 million.

“We’ve been talking about Highway 10 for many, many, many years,” Charette said at a news conference Tuesday.

“We have to know that it was built more than 50 years ago, and we haven’t done any major work on this highway since then.”

The project will see one reserved lane added in each direction along a 10-kilometre stretch between Highway 30 in Brossard and Highway 35 in Carignan.

The lanes will be reserved for buses, taxis and vehicles carrying at least two people and will connect directly to the REM terminal in Brossard via the dedicated access ramp that opened in 2023.

The work also includes replacing aging infrastructure, such as culverts, streetlights, drainage systems, interchange ramps and improving video surveillance.

The province says more than 280 buses serving the Chambly and Saint-Jean-sur-Richelieu region use Highway 10 on a typical weekday to reach the Brossard REM station.

A call for tenders will be launched this summer, with construction work starting soon.

The work is expected to be fully completed by the end of 2030.