Lanfranconi Bridge (, previously Most mládeà ¾e or Youth Bridge) is a concrete motorway bridge in Bratislava, Slovakia, located on the D2 motorway. It was built in 1985âÂÂ1991, with its right half opened in 1990 and the rest in 1992. It is 766 m long (1134 m with access viaducts), and has a 30 m wide four-lane motorway. There are lanes for cyclists and pedestrians as well. It crosses the Danube.