Cintra, the Spanish company that, as part of the RiverLinx consortium, has been selected by Transport for London (TfL) to manage the Silvertown Tunnel, has contracted the Ineco and RPS consortium as an independent certifier throughout the design and construction process. The new tunnel will be the first piece of infrastructure to be built to cross the Thames since 1991, and will increase the transport supply in this area of the river sixfold.

RiverLinx, formed by Aberdeen Standard, BAM PPP, Cintra, Macquarie Capital and SK E&C will manage the design, construction, financing, operation and maintenance of the tunnel. The £1 billion contract includes the design of two 1.4 kilometre long twin road tunnels under the Thames and 0.6 kilometres of access ramps.