Socialist Federal Republic of Yugoslavia
Regarding rivers, the Danube was navigable throughout its entire course in Yugoslavia, linking the ports of Belgrade, Novi Sad, and Vukovar with Central Europe and the Black sea. Long stretches of rivers Sava, Drava and Tisza were also navigable.
New Europe Bridge
The Danube Bridge 2 consists of eight pillars that are in the non-navigable channel of Danube river, crossing from the low lying Bulgarian bank over the small island, followed by its four main pillars, numbered PB9, PB10, PB11 and PB12. The design was to have 13 pairs of stay cables attached to every main pillar in the navigable channel of the Danube river.