Carillion has been chosen to build the Stockley flyover as part of Network Rail’s £2.3 billion work programme.
The contractor has fended off competition from Morgan Sindall and Skanska to land the scheme, after CN revealed in May the three were shortlisted for the work.
CN revealed that Carillion had lost out last month to Bam Nuttall for a deal under the £2.3bn joint rail operators’ package of work to build the £30m Acton diveunder, a scheme that also drew bids from Laing O’Rourke and Skanska.
Carillion had already been carrying out enabling works at the site.
The new flyover is being built to provide conflict-free crossing of the main line.
It is located in the busy Heathrow Airport Junction area, servicing trains to and from Heathrow as well as along the Great Western main line.
Carillion managing director for civil engineering Mark Davies said: “We are really pleased with the award of this contract, which follows our successful delivery of the Reading station area redevelopment track work contract and the advance works contract at Stockley.”
Even more trains will travel along the lines when Crossrail services begin in 2018, so work is needed to improve capacity in the area. Enabling work started on site this year.
In May, Network Rail and Crossrail agreed the £2.3bn funding package for Network Rail to carry out infrastructure and surface works to enable Crossrail services to Maidenhead, Heathrow, Abbey Wood and Shenfield.
Network Rail’s programme director for Crossrail Jorge Mendonca told CN last month that he wanted to see better performance from contractors on the Crossrail schemes.
He added that although he did not want to discourage innovation, he would be seeking contractors that were reliable, because “scope for doing things differently is more limited” due to the intense schedule of works.
Major contracts still to be awarded over the coming months include a deal for track works and overhead line equipment to be awarded this month.
Those contracts are due to be awarded in the spring of 2013, around the same time that Network Rail tenders contracts for design and construction of its north-eastern stations.
Network Rail’s Crossrail programme includes upgrading 43 miles of track, improving 27 stations and renewing 20 bridges.
On the western spur, new station buildings are required at Acton Main Line, Hayes & Harlington, Southall and West Ealing and a major renovation at Ealing Broadway including an enlarged ticket hall, new footbridge, new lifts and pedestrianised forecourt.
The north-east section of Crossrail will include renovations at 13 stations, with station designs due to be formally submitted to the local authorities by early 2013.