 Further tunnel leaks were also discovered in 2007, but were unrelated to the tunnel fire.When Transurban hands the tunnel over to the Victorian government in 2034, after 34 years in service, it must do so with the tunnel in the condition that it will have a 66-year operational life.On 23 March 2007 just before 10 am, a pile-up occurred in the tunnel involving three trucks and four cars.