Costain and VINCI have scooped a 50:50 joint venture (JV) for the first stage of the Early Contractor Involvement (ECI) contract for the M4 Corridor to the south of the city of Newport.
The new 24 km long section of motorway includes a 2.5 km long cable-stayed viaduct above the river Usk, two key interchanges and 36 structures.
The £750 million project will help deliver government aims to improve infrastructure in Wales by making it more efficient, safer and more sustainable.
Development work will commence immediately, a Public Local Inquiry should get underway about 18 months from now and construction, subject to approval by the authorities, could start in spring 2018.
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