Talbrücke Schnaittach, Girder bridge in Schnaittach, Germany.

Talbrücke Schnaittach is a 1,288 m long prestressed concrete box-girder bridge on the A9 motorway between the Hormersdorf and Schnaittach junctions. Its two parallel decks, 15 and 13 spans, cross the Schnaittach valley at up to 30 m above the Staatsstraße 2241, the Schnaittachtalbahn railway and field paths.

The bridge was rebuilt between 1995 and 1998 during the six-lane widening of the A9 motorway, part of the Deutsche Einheit Nr. 12 transport project, at a cost of about 49 million euros. It replaced an older crossing on the Hienberg ascent, which climbs 180 m from the Fränkische Alb to the Rednitz basin at gradients up to 4.5%.

The bridge carries the A9 between the Hormersdorf and Schnaittach junctions, on the Hienberg ascent that climbs 180 m from the Rednitz basin to the Fränkische Alb at a maximum gradient of 4.5%. North of the bridge the two carriageways split onto the west and east slopes of the Hienberg, so the parallel decks end at different points.

The bridge lies between the Hormersdorf and Schnaittach junctions of the A9, north of Schnaittach, and can be seen from the Staatsstraße 2241 between Schnaittach and Simmelsdorf, which it crosses at up to 30 m height. The Schnaittachtalbahn and field paths also pass beneath it. The two carriageway structures separate about 700 m from the northern end, so the west and east spans differ in length.

The eastern deck was built by incremental launching from the southern abutment over 788 m in 33 pushes; the remaining 352 m went up on falsework. The western deck, with its changing plan geometry, was built by the cantilever method from both abutments in sections of 737 m and 551 m, with the longest push of 26.3 m.