Truck Fire Causes Closure of Engelberg Tunnel on A81 Motorway

Tue 3rd Mar, 2026

A significant fire incident occurred in the Engelberg Tunnel on the A81 motorway west of Stuttgart, resulting in the complete closure of the busy route. The event took place near Leonberg when a truck trailer, reportedly loaded with electronic appliances, caught fire inside the tunnel. Emergency services, including the fire brigade, police, and medical teams, responded promptly to the incident.

According to police reports, the fire started in the trailer section of a lorry traveling through the tunnel. The exact cause of the fire remains under investigation, and authorities have not yet determined whether mechanical failure, cargo-related issues, or other factors contributed to the incident. Two individuals sustained minor injuries and received immediate medical attention on the scene. All other occupants were safely evacuated from the tunnel, ensuring there were no further casualties.

The fire was reported at approximately 2:20 p.m., rapidly prompting a major emergency response. Firefighters worked efficiently to contain and extinguish the flames, preventing the fire from spreading to the tunnel's structure or other vehicles. As a safety measure, both tubes of the Engelberg Tunnel underwent extensive ventilation to clear lingering smoke and ensure air quality for potential re-entry.

Due to the incident, authorities implemented a full closure of the A81 motorway in both directions. Traffic heading toward Stuttgart was redirected at the Feuerbach interchange, causing significant delays and congestion on alternative routes. Motorists were advised to avoid the area and seek alternative travel options, as traffic jams and dark plumes of smoke were visible from a considerable distance.

The Engelberg Tunnel is recognized as one of the busiest motorway tunnels in Baden-Württemberg, serving as a critical route for both commuters and freight transport. The closure has had a substantial impact on traffic flow in the region, with authorities urging patience as clean-up operations and safety checks continue. The tunnel has previously experienced traffic disruptions due to similar incidents, underlining the importance of robust emergency protocols and tunnel safety measures.

As of now, clean-up efforts and investigations are ongoing. Police and fire officials are working to determine the full extent of the damage and the root cause of the fire. The reopening of the tunnel will depend on the outcome of safety assessments and necessary repairs. Further updates will be provided as more information becomes available.


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