Two similar viaducts, 612 m and 857 m long, are being built on the D3 motorway in the Kaplice‑Nažidla section. Both viaducts consist of two parallel bridges with spans from 30 to 50 m. The superstructure of each bridge consists of two continuous steel plate girders and a composite concrete slab. The piers, up to 30.9 m high, consist of slender reinforced concrete columns with pier caps. The steel beams are assembled behind the abutments and then incrementally launched into the designed position.