Carillion has been awarded the main civils contract to build a flyover at Stockley in Hillingdon which will allow Crossrail services to run to Heathrow.
The new flyover, which will be built close to the Heathrow Airport junction, will be used by trains to and from the airport as well as along the Great Western Main Line.
Network Rail, which is responsible for the design, development and delivery of the parts of Crossrail that are on the existing network, has also announced today (December 5) that BAM has been handed the civils contract to build a rail underpass (dive under) at Acton freight yard in Ealing.
Currently freight trains entering and leaving the yard need to cross mainline passenger tracks – the new dive under will allow freight trains to access the yard without affecting passenger trains.
Carillion and BAM will both begin work from the beginning of next year, with work due for completion for both projects in 2016.
Jorge Mendonca, Crossrail programme director, Network Rail, said: “These contract awards are an important step forward in the delivery of the Crossrail surface works.
“The new Acton diveunder and Stockley flyover will both deliver benefits for passenger and freight services and are among a number of infrastructure improvements we are making as part of the Crossrail project.
“The works are being carefully planned to minimise the disruption to passenger and freight services.”