The province’s largest waste disposal site in Terrebonne is undergoing an urgent expansion to accommodate more than 1.2 million tonnes of additional waste. The project, announced early on July 1, 2026, responds to a marked increase in the volume of material being sent to the megasite.
Officials overseeing the Terrebonne facility said the enlargement will enable the landfill to continue operating without interruption while the region experiences heightened waste generation. The expansion is designed to integrate the new capacity into the existing infrastructure, ensuring that the additional tonnes can be safely buried alongside current deposits.
The move comes as Quebec confronts a broader challenge of managing solid waste amid growing residential and commercial output. By increasing the landfill’s handling ability, the province aims to maintain compliance with environmental standards while avoiding the need for new disposal sites elsewhere.
While detailed engineering plans have not been released, the project’s scope reflects the urgency expressed by municipal authorities who monitor waste streams across the province. The additional capacity of 1.2 million tonnes represents a substantial boost to the site’s overall volume, reinforcing its role as a central hub for Quebec’s waste management strategy.
The expansion is expected to be completed in phases, allowing the landfill to remain operational throughout construction. Stakeholders anticipate that the increased capacity will mitigate short‑term pressures on the waste system and provide a buffer against future surges in disposal demand.
The Terrebonne landfill, already the largest of its kind in Quebec, will thus continue to serve as the primary destination for the province’s waste, now equipped to handle a significantly larger load as the expansion comes online.