Man cut from wreckage after semi-trailer plunges 10 metres off bridge

A man miraculously survived a freak accident after the semi-trailer truck he was driving plunged 10 metres off a Melbourne bridge.

Melbourne Fire Brigade posted about the incident on their Facebook page and said the truck had fallen off the Bolte Bridge on-ramp from Dynon Road in Melbourne on Friday.

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The driver survived even though he was "severely entangled" in the wreckage. Photos from the scene show the truck crashed on the dirt below the bridge.

"MFB crews were called to an incident involving a semi-trailer that had fallen 10 metres off the Bolte Bridge on-ramp from Dynon Road," the Facebook post read.

"The driver was severely entangled in the wreckage, and although he sustained serious injuries, he survived.

"MFB crews took some time to cut him out and assisted Ambulance Victoria with removing him from the cabin. He was then transported to hospital."

The brigade said they remained on scene until confirmation that it was safe to remove the wreckage.

"Great work from our crews and those from Victoria Police and Ambulance Victoria who assisted," the post said.