The Sydney Harbour Tunnel was closed in both directions after a car caught fire during the morning peak period, prompting a rapid emergency response and causing significant traffic disruption across Sydney.
The fire broke out at about 8am on Wednesday, August 26, after Fire and Rescue NSW received a Triple Zero call reporting a vehicle fire in the southbound lane of the tunnel. Automatic sprinkler systems activated inside the tunnel, while three fire trucks were dispatched to tackle the blaze.
Firefighters were able to extinguish the vehicle fire, with the damaged car subsequently scheduled to be towed from the tunnel. One person was assessed for possible smoke inhalation following the incident. No further serious injuries had been reported in the initial information available.
The closure created substantial congestion around one of Sydney’s busiest harbour crossings. Traffic on the Gore Hill Freeway was reported to be backed up beyond Artarmon, while congestion was also building on the M1. Vehicles approaching the tunnel from the north were experiencing significant delays, with traffic backing up towards Mosman.
Motorists were advised to avoid the Sydney Harbour Tunnel while emergency crews dealt with the incident and recovery operations. Drivers needing to cross Sydney Harbour were encouraged to use the Sydney Harbour Bridge as an alternative route where possible.
The tunnel closure affected both directions because emergency crews needed sufficient space to safely extinguish the vehicle, assess the tunnel and remove the damaged car. Even after flames have been extinguished, authorities can keep a tunnel closed while checking for smoke, damage and other potential hazards.
The incident also demonstrates the importance of the tunnel’s built-in fire-safety systems. The automatic sprinklers activated when the vehicle caught fire, helping firefighters control the blaze while emergency crews made their way to the scene.
Transport authorities continue to monitor traffic conditions across the Sydney network. Live Traffic NSW provides information about current traffic incidents, hazards and road conditions, while Transport for NSW advises motorists to check current alerts before travelling.
Drivers approaching the harbour crossings should allow significantly more time for their journeys and follow directions from police, traffic controllers and emergency personnel. Motorists should not attempt to enter the closed tunnel or approach the scene simply to observe the incident.
The disruption is expected to have a wider impact because the Sydney Harbour Tunnel and Sydney Harbour Bridge carry large volumes of commuter traffic between the city’s northern suburbs and the central business district. When one crossing is temporarily unavailable, delays can quickly spread to surrounding motorways and arterial roads.
Authorities have not indicated that the incident was suspicious, and the available information does not establish what caused the vehicle to catch fire. Investigators may examine the vehicle once it has been removed to determine the cause.
For commuters, the immediate priority is to avoid the affected tunnel and consider alternative routes. Those already travelling in the area should expect delays while traffic gradually recovers following the emergency response.
The fire itself has been extinguished, but traffic conditions remain disrupted. Further updates from Transport for NSW and emergency services are expected as the damaged vehicle is removed and the Sydney Harbour Tunnel is assessed for reopening.
Drivers should check official traffic information before setting out and allow additional travel time while the network returns to normal.