Completed in 2021
The viaduct of 12 spans is formed by a spine box girder with large overhangs supported by precast struts. The deck is erected progressively; at first the spine girder is cast in a formwork suspended on a special overhead gantry with "organic" prestressing system (OPS) that eliminates deflection of the gantry; after that the struts are erected and the deck slab is cast.
Structure length783.5 m
LocationWestern viaduct Bratislava D4R7 Bypass, Slovakia
Span length53.0 + 10 x 67.5 + 52.5 m
Structure typeViaduct formed by a continuous girder.
Width of the superstructure35.0 m
Scope of work
3D Analysis of the superstructure