The cash injection will help improve the flow of traffic from the UK to the EU, with more border control points and a new exit route to help the port operate more efficiently and reduce congestion on local roads.
Doug Bannister, chief executive of the Port of Dover, said: "This will be a transformational project, delivering the next evolution of Britain’s busiest ferry terminal with a reconfigured layout and enhanced border control points to help secure traffic flow and capacity for the long term."