The first Crossrail tunneling works contracted was awarded in March.
The GBP15M contract to construct the Royal Oak Portal went to the Costain Skanska joint venture.
The Royal Oak Portal is near to Paddington main line station and will act as the transition ramp for Crossrail trains when entering and exiting the central London tunnels.
Work will begin immediately and is scheduled for completion next March.
Chief executive of Costain Andrew Wyllie said, “We are delighted to have been awarded this first tunnel related construction contract for Crossrail. To be involved in the Crossrail project is a significant step forward for Costain and a valuable addition to our strong rail portfolio.”
