Network Rail has awarded two contracts for major civils work on its section of Crossrail to Carillion and BAM.
Carillion has landed the main civils contract to build a larger flyover at Stockley in Hillingdon that will allow Crossrail services to operate to and from Heathrow.
The single track viaduct will enable trains to join the Heathrow branch without interfering with fast trains to the west.
BAM’s contract is to construct a new dive-under with associated track work at Acton freight yard in Ealing. The structure will separate freight trains accessing the yard from passenger trains.
Both contractors will begin work in early 2013 and are due to complete the projects in 2016.
Network Rail is responsible for the parts of Crossrail that are on the existing network, including upgrading 69km of track and 27 stations from Maidenhead to Abbey Wood and Shenfield.