The contract is worth 116 million euro.

The contract was signed on 30 January. The decision process took two years. Out of 15 initial bidders, five were short-listed: four consortia headed by Vinci, Bouygues, Zublin and Hochtief, and FCC bidding alone.

The bridge, which is part of Trans-European Corridor IV (Dresden-Istanbul), will measure 1,971 metres in length and was designed jointly by the Fernández Casado engineering firm and FCC Construcción's own engineers. The bridge comprises three sections: one providing rail access from the Bulgarian side of the river, a second section over the non-navigable section of the river, connecting the Bulgarian side to an island in the middle, and a third section, from the island to the Romanian side, spanning the shipping channel. The latter two sections will be hybrid use: rail and road traffic.

The main structure over the shipping channel will be a continuous extradosed prestressed concrete bridge over five spans (three measuring 180 metres each, and the others measuring 124 metres and 115 metres).

The bridge over the non-navigable section will comprise a continuous pre-stressed concrete deck 612 metres long over seven 80-metre spans and a 52-metre outer span. In this area, the road and rail decks will be on separate structures.

The rail access viaduct will comprise a continuous prestressed concrete deck 952 metres long with constant girder depth over 23 equal 40-metre spans and an outer 32-metre span.