Crossrail has invited bids for the construction of Farringdon station in London in the UK as part of the £14.5bn ($23.4bn) Crossrail project.
The £350m ($566m) contract, called C435, involves the construction of two platform tunnels, each 245m long, ticket halls as well as overall management works.
At the western end of the station, the ticket hall is combined with a proposed ticket hall for the Thameslink project, which is being upgraded by a Costain/Laing O'Rourke joint venture under a £172m ($278m) contract.
Farringdon station is one of eight Crossrail stations along the central tunnel section and will be the only station from which passengers will be able to access Crossrail, Thameslink and London Underground trains.
Crossrail said the station will provide links to Gatwick, Luton, Heathrow and London City airports in addition to St Pancras International rail station.
Deadline for submission of the documents is 3 December, according to constructionenquirer.com.