On 24 March 1999, a transport truck caught fire while driving through the Mont Blanc Tunnel between France and Italy. When it stopped halfway through the tunnel, it violently combusted. Other vehicles in the tunnel quickly became trapped and caught fire as firefighters could not reach the transport truck. 39 people were killed. In the aftermath, major changes were made to the tunnel to improve its safety.
Fire
On the morning of 24 March 1999, a refrigerated trailer & Volvo FH12 tractor truck, driven by Gilbert Degrave and carrying flour and margarine, entered from the French side of the tunnel. The truck came through the tollbooth at 10:46 CET. The initial journey through the tunnel was routine.
According to the National Geographic documentary programme Seconds from Disaster, the fire and smoke appeared at around 10:49. Shortly after, the driver realized something was wrong as cars coming in the opposite direction flashed their headlights at him; a glance in his mirrors showed white smoke coming from under his cabin. This was not yet considered a fire emergency. In fact, in the previous 35 years, there had been 16 other truck fires in the tunnel, however all were extinguished on the spot by the respective truck drivers.
At 10:53, the driver, Gilbert Degrave, stopped into the tunnel to attempt to fight the fire, but was forced back when the payload suddenly burst into flames. Authorities compounded the chimney effect by pumping in more fresh air from the Italian side, escalating the fire while trapping toxic fumes inside. Only vehicles past the fire on the French side of the tunnel were trapped, while cars on the Italian side of the fire were mostly unaffected.
There were 29 deaths of people trapped inside of vehicles, and nine more died trying to escape on foot. All the deceased were on the French side, and were ultimately reduced to bones and ash by the intense heat. Of the initial fifty people trapped by the fire, twelve survived, all of them from the Italian side. Renovations include computerized detection equipment, extra security bays, a parallel escape shaft and a fire station in the middle of the tunnel complete with double-cabbed fire trucks. The safety shafts also have clean air flowing through them via vents. Any people in the security bays now have video contact with the control centre, so they can communicate with the people trapped inside and inform them about what is happening in the tunnel more clearly.
A remote site for cargo safety inspection was created on each side: Aosta in Italy and Passy-Le Fayet in France. Here all trucks are inspected well before the tunnel entrance. These remote sites are also used as staging areas, to smooth the peaks of commercial traffic.
The experience gained from the investigation into the fire was one of the principal factors that led to the creation of the French Land Transport Accident Investigation Bureau.
TV documentaries were also made concerning the disaster, all distributed worldwide and focusing on either safety aspects or the circumstances that turned what should have been a serious, but controllable incident into a disaster. The first, Seconds from Disaster – Tunnel Inferno (aired 2004), was a reconstruction of the events leading up to and during the disaster and the conclusions of the investigation that followed. The second, Into the Flames – Fire Underground (aired 2006), revisited the circumstances and showed how new technology in the form of a new type of fire extinguisher could have reduced the scale of the disaster and enabled the fire service to reach and remain in the vicinity to fight the fire.
Pierlucio Tinazzi, an Italian security guard who died attempting to rescue a truck driver, was posthumously awarded Italy's Medaglia d'Oro al Valore Civile (Gold Medal for Civil Valor).
Manslaughter trial
In Grenoble, France, 16 people and companies were tried on 31 January 2005 for manslaughter. Defendants in the trial included:
- Gilbert Degrave, the Belgian driver of the truck that caught fire in the tunnel
- Volvo, the truck's manufacturer
- The French and Italian managers of the tunnel
- and
- Safety regulators
- The Mayor of Chamonix
- A senior official of the French Ministry of Public Works
The exact cause of the fire is disputed. One account reported it to be a cigarette stub carelessly thrown at the truck, which supposedly entered the engine induction snorkel above the cabin, setting the paper air filter on fire. Others blamed a mechanical or electrical fault, or poor maintenance of the truck's engine. An investigation found no evidence of a design fault with the truck. The closest smoke detector was out of order, and French emergency services did not use the same radio frequency as those inside the tunnel.
The Italian company responsible for operating the tunnel, SITMB, paid €13.5 million ($17.5 million US) to a fund for the families of the victims. Édouard Balladur, former president of the French company operating the tunnel (from 1968 to 1980), and later Prime Minister of France, underwent a witness examination. He was asked about the security measures that he ordered, or did not order, to be carried out.
Balladur claimed that the catastrophe could be attributed to the fact the tunnel had been divided into two sections operated by two companies (one in France, the other in Italy), which failed to coordinate the situation. On 27 July 2005, thirteen defendants were found guilty, and received sentences ranging from fines to suspended prison sentences to six months in jail:
- Gérard Roncoli, the head of security at the tunnel, was convicted and sentenced to six months in jail plus an additional two-year suspended sentence, the heaviest sentence levied against any of the defendants. The sentence was upheld on appeal.
- Remy Chardon, former president of the French company operating the tunnel, was convicted and received a two-year suspended jail term; he was also fined approximately US$18,000.
- Gilbert Degrave, the driver of the truck, received a four-month suspended sentence.
- Seven other people, including the tunnel's Italian security chief, received suspended terms and fines.
- Three companies were fined up to US$180,000 each.
- The charges against Volvo were dropped.
See also
- List of transportation fires