UPDATE: A MAN trapped for more than four hours after his truck rolled on a major highway near Ballarat this morning has been freed.
The 47-year-old, who became had his legs pinned when his prime mover crashed at 4.52am, was rescued just after 8.30am.
As part of the intricate operation, emergency services operated a crane to relieve pressure off the cabin by hoisting the truck and enabling emergency services on the ground to free the man.
Victoria Ambulance spokesman John Mullen said the man had been bolstered with pain relief throughout the process after paramedics learned he had fractured both legs and possibly his pelvis in the single-truck smash.
He was airlifted to the Royal Melbourne Hospital – a 25-minute flight from the scene – in a serious but stable condition.
The driver lost control and veered from the the west-bound lane of the Western Freeway in Brown Hill into an embankment, about 10km northwest of Ballarat.
Major traffic delays have rippled across the region as the Western Freeway remained closed in both directions during the rescue effort.
Melbourne-bound lanes have now reopened, however westbound roads along the Western Fwy between Victoria St and Water St in Brown Hill remain closed as emergency services clear the scene.
VicRoads is advising drivers to allow extra for extra time if travelling through the area this morning.
"He's conscious and breathing and communicating with the paramedics, but the problem is they're trying to right the vehicle to take the pressure off the cabin," Mr Mullen earlier said.
"We were told right when we arrived at the scene the nature of the accident meant it would be a prolonged extraction."
A Victoria Police spokesman said police were at the scene where they were assisting emergency services.
Country Fire Authority (CFA) spokesman Nick Talbot said four vehicles were on stand-by at the scene including a rescue vehicle and a tanker.
He said the incident had been cleared for any likely fire activity.
Read more on the Herald Sun.