The legendary Montague Street bridge may have claimed its last scalp.

This week VicRoads began installing large gantries with hanging rubber paddles that will "thump" in warning if a vehicle is about to make a dangerously-optimistic attempt at the underpass.

The deceptively-low light rail bridge in South Melbourne has become famous for its capacity to bamboozle truck drivers into thinking they're in a game of limbo - before all but decapitating them.

It has at least 102 known victims, the latest of which was spotted limping, so to speak, from the scene last week – the tarp ripped from the skeleton of its trailer.