Truck hits Vic bridge that destroyed bus

A truck has hit the same Melbourne bridge that peeled the roof off a bus only a day before.

The Port Melbourne-bound truck collided with the Montague Bridge in South Melbourne just before 6pm on Tuesday.

Victoria Police said no one was injured in the crash, and the truck has since been removed.

The crash comes only a day after a tourist bus from Ballarat triggered height sensors and set off flashing warning lights before the driver smashed into the bridge.

The driver and 10 passengers were admitted to hospital following an ordeal which saw four people freed by fire crews after they became trapped in the wreckage.

Police are still investigating how the driver missed warning signs and slammed into the bridge - but they say it's likely driver error was to blame.

Since January 2015, 14 vehicles have struck the bridge, with three now smashing their roofs on it this year.

Despite the rising number of accidents, the road authority insists it is up to drivers to pay attention.

Nonetheless, it will again review the bridge, with VicRoads director Bryan Sherritt saying improvements can be made.

But drivers still needed to be "acutely aware" of their vehicle and the height restrictions of the bridges on their routes, he said.