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Cetina Viaduct under construction, tall concrete piers carrying a new deck over a reservoir with tower cranes and formwork beside them

Project 10Motorway viaduct, under construction

Cetina Viaduct

Client
Hrvatske autoceste, motorway authority
Location
Dalmatian hinterland, Croatia
Year
2025
Area
18,200 m²
Duration
38 months
Structural engineer
Kovač Statika, Ljubljana
01 — The projectDalmatian hinterland, Croatia, 2025

Eleven piers standing, the last spans being cast, and the reservoir still full.

The Cetina Viaduct will carry a new motorway 820 metres across a reservoir and its valley. It is on site now, with every pier complete and the deck advancing span by span.

The piers were cast in climbing formwork, up to 52 metres tall, with their heads widened to take the box girder. Two tower cranes and a launching gantry work from the eastern bank.

Precast segments are made in our yard beside the site, so the deck can keep moving through the winter without a single closure of the road below.

Site 43°41′22″N 016°41′05″E

Board-marked concrete pier carrying the underside of the deck against a pale sky
Fig. 02 — A finished pier head waiting for its deck
Fig. 03 — Ground floor plan1:200
Detail of Cetina Viaduct
Fig. 04 — Detail of the finished building
02 — Materials and specifications04 items
Length
820 m, twelve spans
Piers
Eleven, up to 52 m tall
Deck
Precast box girder segments
Status
Deck under construction, opening 2026
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