The 10-year project will add capacity and improve safety across England’s road network.
The engineer said it will apply, among other technologies, its Design for Manufacture and Assembly techniques, which allows to complete work off-site.
“Costain has been a long-term partner for Highways England delivering a broad mix of services from consultancy and digital technology solutions through to programme management and complex project delivery,” chief executive Alex Vaughan commented in a release.
Analysts at house broker Liberum said the contract win will add £1bn to the order book, "but this will only be as schemes are allocated over the period of the framework".
Shares advanced 4% to 82.32p on Monday at the opening bell.
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