Officers were called to the A142 crossing at around 10:30am this morning (Thursday May 17) after reports a HGV had stuck the barriers and caused damage.
Police closed the North level crossing for around one hour while engineers from Network Rail assessed the damage; people were advised to "avoid the area if possible".
A spokesman for British Transport Police said: "We were called at 10.25am to Ely station following a report that a vehicle had struck a level crossing barrier causing damage.
The closure caused increased traffic congestion in the area due to the incident.