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Viadukt

Viadukt is a Croatian civil engineering company known for bridge, tunnel, motorway, and urban road construction.

Last updated August 31, 2026

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Overview

Viadukt is a Croatian civil engineering and construction company specializing in transport infrastructure. Its principal capabilities include the construction and reconstruction of bridges, viaducts, tunnels, motorways, and urban streets. The company has been associated with major Croatian road-building programs, particularly the development of the national motorway network. Its documented work includes substantial sections of the A1, A3, and A5 motorways, as well as numerous major motorway structures. These include the Osojnik, Draga, Zečeve Drage, Dobra, Drežnik, and Limska Draga viaducts. Viadukt also worked on the Bajer Bridge on the A6 motorway and the Sava River Bridge on the A2 motorway. Its tunnel portfolio includes the Tuhobić Tunnel, identified as the longest tunnel on the A6 motorway in the available reference material. The company’s work reflects the technically demanding requirements of Croatian transport infrastructure, where mountainous terrain, karst geology, long-span structures, and complex motorway alignments require coordinated civil, structural, and underground-construction expertise. In addition to new-build infrastructure, Viadukt has undertaken reconstruction and urban-street projects, giving it a business scope broader than bridge construction alone. Viadukt was also a publicly traded Croatian company. The available reference identifies it as listed on the Zagreb Stock Exchange and included in the CROBEX index. The same source names Joško Mikulić as chairman of the board, Ivan Berket as vice-chairman, and Damir Kezele as another member of the managing board. The supplied material does not establish the company’s founding year, current operating status, current ownership, website, or a verified stock ticker, so those fields remain unspecified here.

History

Viadukt is a Croatian civil engineering company whose activities center on the delivery of transport infrastructure. The available reference describes it as specializing in bridges, tunnels, and roads, while also undertaking the construction and reconstruction of urban streets. This combination places the company within the infrastructure-construction sector rather than a consumer-facing product category. The company’s documented project record is closely connected with the expansion of Croatia’s motorway network. Viadukt performed significant sections of the A1, A3, and A5 motorways and constructed or contributed to a number of major motorway viaducts. The cited examples include Osojnik, Draga, Zečeve Drage, Dobra, Drežnik, and Limska Draga. These projects demonstrate the company’s involvement in large-scale elevated road structures, which are particularly important in Croatia’s mountainous and varied terrain. Viadukt also worked on major bridge infrastructure. Its portfolio includes the Bajer Bridge, forming part of the A6 motorway, and the Sava River Bridge, forming part of the A2 motorway. The company was additionally employed for construction works connected with the Pelješac Bridge. The available material does not specify the exact scope, contract value, or completion role for that project, so no further attribution is made here. Tunnel construction represents another significant part of Viadukt’s history. The company executed several important tunnels, including the Tuhobić Tunnel, described in the reference as the longest tunnel on the A6 motorway. Its combined experience in tunnels, bridges, viaducts, and roads indicates an integrated civil-engineering capability suited to major motorway packages and complex transport corridors. Viadukt also had a public-market presence. The reference states that the company was listed on the Zagreb Stock Exchange and included in the CROBEX index. It identifies share capital of 137,043,900 Croatian kuna and 456,813 issued shares, but no date is supplied for those figures; they are therefore not repeated as current financial information. The same reference names Joško Mikulić as chairman of the board, Ivan Berket as vice-chairman, and Damir Kezele as another managing-board member. The supplied sources do not establish Viadukt’s founding date, founder, present ownership, current website, current listing status, or whether the company remains active. Accordingly, the company’s status is recorded as unknown rather than inferred from historical listing or project information.

  • Expansion of Croatian motorway infrastructure

    [1]

    Viadukt carried out significant construction work on sections of the A1, A3, and A5 motorways, establishing a substantial role in Croatia’s motorway-building program.

  • Major motorway viaduct projects

    [1]

    The company worked on several major motorway viaducts, including Osojnik, Draga, Zečeve Drage, Dobra, Drežnik, and Limska Draga.

  • Bridge infrastructure delivery

    [1]

    Viadukt contributed to the Bajer Bridge on the A6 motorway and the Sava River Bridge on the A2 motorway.

  • Tuhobić Tunnel construction

    [1]

    The company executed the Tuhobić Tunnel, identified in the available reference as the longest tunnel on the A6 motorway.

  • Pelješac Bridge construction works

    [1]

    Viadukt was employed for construction works associated with the Pelješac Bridge, although the supplied source does not specify its precise contractual scope.

  • Zagreb Stock Exchange listing

    [1]

    The reference identifies Viadukt as a company listed on the Zagreb Stock Exchange and included in the CROBEX index; the date of listing is not provided.

Products and positioning

A Croatian infrastructure-construction specialist focused on technically complex motorway, bridge, viaduct, tunnel, and urban-road projects.

  • Transport infrastructure

    Motorway construction

    Viadukt has constructed significant sections of Croatian motorways, including portions of the A1, A3, and A5. Its motorway work encompasses road corridors and associated structures required to connect difficult terrain and major transport routes.

  • Structural civil engineering

    Bridges and viaducts

    The company’s bridge and viaduct work includes the Bajer Bridge on the A6, the Sava River Bridge on the A2, and several motorway viaducts such as Osojnik, Draga, Zečeve Drage, Dobra, Drežnik, and Limska Draga.

  • Underground infrastructure

    Tunnels

    Viadukt has executed major road tunnels, including Tuhobić Tunnel on the A6 motorway. Tunnel construction forms part of the company’s broader civil-engineering specialization alongside bridges and roads.

  • Urban infrastructure

    Urban streets

    In addition to national motorway and bridge projects, Viadukt undertakes construction and reconstruction of urban streets, extending its services to municipal and city-scale road infrastructure.

Sources1 sources

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