The firm single handedly beat off a heavyweight line-up of rival joint venture bids from Balfour Beatty / Morgan Sindall / Vinci; Costain/Skanska and Dragados/Sisk to win their first main London station contract worth £300m.

The contract will be formally awarded after a customary 10-day standstill period. After that intensive construction for Liverpool Street Crossrail station will get underway later this year.

Andy Mitchell, Crossrail Programme Director said: “As with the Paddington, Farringdon and Whitechapel contracts, high quality bids were received for Liverpool Street station.

“The main construction contract for Tottenham Court Road station will be the next to be awarded in mid-2012.”

Crossrail’s Liverpool Street station will serve the City of London and provide interchanges with London Underground’s Northern, Central, Metropolitan, Circle and Hammersmith & City Lines, connections to Stansted airport and National Rail services at Liverpool Street and Moorgate stations.

The new Crossrail station will be located below existing Liverpool Street and Moorgate stations and Finsbury Circus.

Crossrail will build two new ticket halls, Broadgate in the east and Moorgate in the west, for passengers to access Crossrail trains at Liverpool Street Station.

At the eastern end of the Liverpool Street Crossrail station, a new Crossrail ticket hall will be constructed beneath Liverpool Street close to the Broadgate development. At the western end, a new ticket hall will be built by expanding the existing Moorgate station ticket hall.

The site of the Broadgate ticket hall sits directly above a 16th Century burial ground belonging to the Bethlehem Royal Hospital. Investigations by Crossrail archaeologists have confirmed the presence of up to 4,000 complete human skeletons 2-4m below street level.

Excavation of the human remains will be completed before construction of the new Broadgate Ticket Hall starts. This will enable archaeologists to record and preserve London heritage and history.

Crossrail will carefully rebury the remains after consulting with the Ministry of Justice.