Tarnava Viaduct, steel arch railway structure

The Tarnava River Bridge is part of the rehabilitation works on the Brașov–Simeria railway line, within the Sighișoara–Coșlariu section in Romania. This line belongs to the IV Pan-European Corridor, is double-track, and has a design speed of 160 km/h.

The new bridge crosses the Tarnava River near the city of Sighișoara by means of a single-span structure with a span of 125 m and a total width of 15.6 m. The deck consists of a double vertical steel truss arch configuration with a lower deck, whose main elements are two longitudinal steel tie girders. The deck platform between the arches has a width of 9.20 m to accommodate the double track, and is resolved as a composite system comprising transverse beams, two longitudinal stringers, and a concrete slab connected to the steel elements. Pedestrian walkways located at the edges of the cross-section complete the deck.