An urban bridge for vehicles and foot traffic

The project, carried out in the city of Ingolstadt, had as its purpose to construct a structure that would carry both vehicles and people on foot across the Danube. Owing to the design decision to create an outside-cable prestressed-concrete structure, the bridge displays an original design, which has made it a characterizing feature of the city district in which it stands, one it is perfectly integrated into. The bridge has a total length of 164 meters and displays no intermediate piers, a solution adopted to minimize its impact on the landscape and on the historic cityscape. The bridge grade profile is designed around the parallelism of the street and foot levels, running at different elevations. Structurally the bridge consists of a very slender - less than 0.30 meters deep - outside-cable prestressed-concrete deck borne by two longitudinal girders 0.70 m deep, themselves bearing on two inclined struts. Two clusters of cables run at the margins below the deck soffit, each composed of four cables. Another two cable clusters are arranged in the central position, exhibiting a more or less straight-line trajectory. The side footways, connected together crosswise, are supported by two cables that follow the profile of the principal bridge cables and run below the level of the vehicle deck.