Since work began in Summer 2019, significant progress has already been achieved, with much of the work taking place behind the scenes without causing disruption.
For safety reasons, some of the major works can only be carried out when trains are not running, and there have been a number of weekend closures at London King’s Cross and sections of the East Coast Main Line to enable the work to continue.
Over August Bank Holiday 2019, we replaced the heavily-used Newark flat crossing:
Over nine days over Christmas 2020 we excavated and replaced the old Camden Sewer which runs beneath all the lines leading into and out of London King’s Cross station. This enabled us to remove a speed restriction over the Victorian structure, enabling departing trains to accelerate earlier and more quickly:
In January 2021 we achieved a UK first by successfully pushing an 11,000 tonne, 155 metre long curved concrete tunnel into position beneath the East Coast Main Line at Werrington, north of Peterborough: