The Rail Accident Investigation Branch (RAIB) is investigating the derailment of a freight train at London Gateway.
At around 5.45am on 24 December 2021, the 22:35 GB Railfreight-operated freight service from Hams Hall, near Birmingham, to London Gateway derailed on the down Thames Haven line while on the approach to London Gateway port, near to Stanford-le-Hope in Essex.
The freight train involved was formed of a class 66 locomotive and 33 wagons, all of which were of the ‘container flat’ type. The initial derailment occurred on Network Rail-managed infrastructure, when the leading bogie of the 12th wagon derailed on plain line at about 13 mph (20 km/h).
The train continued travelling for around 500 metres after the initial derailment, before it reached a set of facing points within the port boundary, when a further four wagons derailed.
The wagon involved in the initial derailment was the middle wagon of an Ecofret2 set. This consisted of three wagons semi-permanently connected to each other by steel draw bars. The wagon involved in the initial derailment was the only one in the train not loaded with a container.
There were no injuries caused by the derailment, but extensive damage was caused to track and signalling equipment inside the port boundary. The rail connection to the port remained closed until temporary repairs allowed it to reopen on 4 January 2022.
RAIB said its investigation will seek to identify the sequence of events which led to the accident. It will include consideration of the status of the track conditions, the loading of the wagons, wagon characteristics, the way in which the train was driven and any underlying management factors.
It added that its investigation is independent of any being carried out by the railway industry or by the industry’s regulator, the Office of Rail and Road.