On November 1, 2026, the mayors of Rosemont–La Petite-Patrie and Plateau‑Mont‑Royal announced a proposal to shut down the Van Horne viaduct, which would remove the direct road connection between the two boroughs.
The viaduct currently functions as a primary artery linking Rosemont–La Petite‑Patrie with Plateau‑Mont‑Royal, serving as a key route for local traffic.