Suspension bridge A26

A26 Linzer Autobahn is a project that aims to solve traffic congestion in the third Austrian city. The first segment consists in of the construction of a suspended bridge over the Danube River, 305 meters long, that connects two tunnels of 3.0 km.

The bridge consists of a 24.5-meter-wide deck constituted by a trapezoidal steel box girder 7.8 meters wide in the upper part and 5 in the lower part, spaced by steel cross beams of 14.55 meters supporting concrete slabs. For reasons of space on site, the deck is pre-assembled in macro elements in a dedicated area along the Danube river. Then is moved into position with a barge, lifted with jacks and hooked to hanger cables. The structure is supported by two rows of twelve steel cables each, hooked to concrete anchors immersed in the slope of the mountain, anchored to the rock by over a hundred rods each.