On August 8, 2026, a vehicle traveling on Quebec City's A‑40 highway left the viaduct and fell to the ground below. According to reports, the driver began to choke and subsequently lost consciousness while still seated in the car.

The A‑40 viaduct, a key elevated segment of the provincial highway that carries traffic through the metropolitan area, was the site of the incident. The structure spans a busy corridor and is routinely used by commuters and commercial drivers alike.

Witnesses describe the car as descending from the elevated roadway before coming to rest on the ground. Shortly after the impact, the driver reportedly experienced choking, which led to a loss of consciousness. Emergency responders were alerted to the situation and arrived at the scene to assess the condition of the individual and secure the area.

Authorities confirmed that the driver was still in the vehicle when the choking episode occurred and that medical personnel provided assistance on site. The driver was subsequently removed from the vehicle for further evaluation. Police have opened an investigation to determine the factors that contributed to the vehicle leaving the viaduct and the subsequent medical emergency.

The incident underscores the importance of ongoing safety monitoring on high‑traffic infrastructure such as the A‑40 viaduct. While such events are uncommon, officials stress that rapid response and thorough investigation are essential to ensure public safety and to understand any underlying causes.