A van was ripped apart after it struck Ely bridge at the weekend.
The bridge, near Ely railway station, took yet another hit on Sunday evening when a van crashed into it before blocking the road.
The vehicle was recovered and there was no damage to the bridge.
"Please ensure you are aware of the height of your vehicle and pay attention to height restriction signs," urged police.
In 2022, Ely railway bridge was named fifth on Network Rail's list of Britain's most bashed, having been struck 12 times.
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