The driver who fled the scene of a truck collision on Melbourne's West Gate Bridge is expected to be charged with multiple offences after police interviewed him.

Victoria Police said in a statement the 93-year-old driver of a BMW Series 7 black sedan crashed into the side of a truck about 8.20am yesterday in the outbound lanes, causing the truck to collide with another truck and hit the side of the bridge.

Despite there being no injuries from the incident, more than 40 metres of damaged was caused to the safety barrier on the side of the bridge in the collision.

The driver of the significantly damaged sedan fled the scene, according to police.

The 93-year-old driver of a BMW sedan that crashed into a truck, that then crashed into another truck, on Melbourne's West Gate Bridge is expected to be charged with multiple offences. (9NEWS)

Traffic chaos was sparked in Melbourne after the second truck collided into a safety barrier on the bridge and caused more than 40 metres of damage. (Supplied)

The crash sparked hours of traffic chaos, with queues of vehicles backed up until Burke Road on the Monash Freeway and the other two outbound lanes initially closed for repairs to the barrier.

“If (the barrier) was to be hit again by a car or truck, there is potential the truck would go over the side,” West Gate Bridge manager Dimi Polymenakos said yesterday.

Traffic was backed up for hours following the incident, which the 93-year-old is accused of driving away from. (Nine)

“We are working on the traffic signalling…to optimise traffic flow, and we’ll do our best to minimise delays.”