Crossrail's Jessica completes east London journey
A Crossrail machine named after Olympic star Jessica Ennis-Hill has completed her 900-metre journey by breaking into east London's Victoria Dock Portal.
The 1,000 tonne tunnel boring device, Jessica, started what was her second mission at Limmo Peninsula and travelled distances of up to 41 metres each day.
Staffed by a team of 20, she tackled tunnel segments in Chatham in Kent which were then delivered to Limmo by river barge.
Although Jessica will now be dismantled, with parts used on similar projects, her sister machine Ellie will begin the remaining twin tunnel from Limmo to Victoria Dock in the next few weeks.
The milestone means Crossrail's tunnel network is now 83 per cent complete, with work undertaken by tunnel boring machines due to end early next year.
Andrew Wolstenholme, chief executive of Crossrail, said: "We continue to make good progress on Crossrail's tunnels.
"The end is now in sight on Crossrail's tunneling marathon, but there is much more to do in the form of installing railway systems and fitting out the stations."