The first joint venture, which includes French firms Alstom and TSO, won a contract worth approximately £300m to design, fit out and commission the railway systems in Crossrail’s tunnel network, Costain said in a statement yesterday.
The second, a separate joint venture with Alstom, was awarded a £15m contract to design, build and commission the system that will provide traction power for the trains in the central tunnelled section of the Crossrail scheme.
Costain’s joint venture with Skanska has already been selected to upgrade several stations on the route.
The £16bn Crossrail scheme, which will join up east and west London, is Europe’s biggest infrastructure project and is set to open in 2018.
It is part-funded by Transport for London and national authorities, and some private funding.
TfL has given train companies until the end of the month to express an interest in operating the 37-stop route once it opens, with a decision due by next year.
Costain, which builds and maintains highways, rail stations and airports, in March posted a 16 per cent rise in full-year adjusted profit.