The Sparbauernbrücke spans the Granitzenbach in Weißkirchen as part of the new R2 Murradweg from Weißkirchen to Möbersdorf. It runs parallel to the existing road bridge on the L543, Möbersdorferstraße, and has a total length of around 25 meters. The height of the bridge is determined by the requirements of the bridge's location in a flood zone and was determined on the basis of flood discharge calculations. The adjacent ramps and embankments are constructed as reinforced earth.
From a structural point of view, the bridge is an integral frame structure with shallow foundations. The bridge cross-section is designed as a reinforced concrete trough, whereby the main girders are designed as slender concrete trusses in prefabricated construction. The roadway slab is designed without additional superstructures such as waterproofing or asphalt and is therefore exposed to the elements and finished with a broom finish. For drainage, the bridge will have a longitudinal elevation and a transverse slope running inwards from the main girders. The foundations and abutments are constructed using in-situ concrete and the connection between the precast main girders and the abutments is made using a structural steel connection welded on site. For the construction stage, the precast main girders serve as set-up girders for suspending the formwork for the roadway slab.
The relocation of the adjacent Tanauerbach with discharge into the Granitzenbach was also implemented as part of the project.