The City of Montreal has received a recommendation from engineers it hired to evaluate the Rosemont‑Van Horne viaduct. The experts advise tearing down the aging structure and replacing it with an underground tunnel that would pass beneath the Canadian Pacific rail line.
The viaduct, located in the Rosemont‑Van Horne area of Montreal, has been described as old and deteriorated. The city commissioned the engineering study as part of a broader review of options for the structure, which has shown signs of wear over time.
According to the engineers’ report, demolition of the viaduct would address safety concerns linked to its condition. The proposed subterranean passage would provide a continuous route for traffic while avoiding the need to maintain the elevated bridge. The plan also calls for the tunnel to be constructed beneath the existing Canadian Pacific railway corridor, allowing both road and rail operations to continue without interference.
The city has not yet announced a final decision, but the recommendation adds a concrete option to the ongoing discussion about the viaduct’s future. Officials will consider the engineering findings alongside other factors, such as budgetary constraints and community impact, before determining the next steps.
The engineering assessment was completed on Monday, September 14, 2026, and submitted to municipal authorities later that morning. The city’s review process will now incorporate the recommendation as it evaluates the most feasible solution for the aging infrastructure.
Montreal residents and commuters who rely on the Rosemont‑Van Horne viaduct can expect further updates as the city moves forward with its evaluation and potential planning for a new underground crossing.