Main station works at four central London sites collectively worth £950 million have been tendered by Crossrail.
The Bond Street, Tottenham Court Road, Liverpool Street and Whitechapel stations contracts represent two-thirds of the central section of the new railway that will connect East and West London and are likely to be some of the most valuable up for grabs.
The work is divided into separate lots for each station and contractors are invited to separate or multi-lot bids.
Lots one and two cover Bond Street and Tottenham Court Road respectively and each is worth £200m.
Lot three covering Liverpool Street Station is the largest at £300m.
And Whitechapel is worth £250m.
Each includes general civils and building works to construct the ticket hall structures and all other works necessary for the construction of the main stations which may include piling and excavation, lifts and escalators and maintenance of station systems.
Bond Street is expected to take 60 months from the award of the contract, Tottenham Court Road 46, Liverpool Street 70, and Whitechapel 72.
Whitechapel also includes the demolition of two bridges across the London overground railway.
Requests to participate should be received by 14/02/2011 and should be submitted via www.crossrail.bravosolution.co.uk).