Ada Bridge Belgrade
The Adabron, completed in 2012, spans the Sava River in Belgrade. This cable-stayed bridge, anchored by a single pylon, has received multiple awards for its advanced engineering. The new bridge not only enhances the city's infrastructure but has also become a modern landmark for Belgrade.
Client
Beoland
Project type
Construction, Bridge, Highway
Time frame
2008 - 2012
Scope
965 m Bridge
Location
Belgrade
Roll
Surveying Engineer for Main Contractor
Value
SEK 5 billion
Roll
In this project, Nebojsa Cadjenovic served as surveying engineer for the project's main contractor, Porr Austria.
Winner of the design competition
The design of the bridge was created by the Slovenian company Ponting, which won the design competition for the new bridge over the Sava. It is one of the world's largest asymmetric cable-stayed bridges with a single pylon and a total length of 965 meters. The bridge is designed to significantly reduce traffic passing through central Belgrade. The 45-meter-wide bridge increases capacity with two three-lane traffic lanes, two tram tracks, and pedestrian and bicycle paths on each side.
Multinational project with technical challenges
The Ada Bridge was a multinational project involving Porr Austria, DSD Germany, and SCT Slovenia. The project included several challenging elements that required precision and careful coordination, including the pylon, main span, stay cables, approach ramps, and access roads to New Belgrade.
The bridge features a 220-meter-high pylon, supported by a caisson wall with 113 drilled piles. The main span is constructed of 8,600 tons of bridge structural steel, supported by 80 stay cables with a maximum length of 373 meters, counterbalanced by a 200-meter pre-stressed, reinforced concrete span. In total, 1,280 tons of high-quality steel were used for the stay cables.
Connects with access ramps
The project also included many access ramps at a height of 10-25 meters and a roundabout at a height of 10 meters. On the New Belgrade side, the approach road is constructed as a prestressed, reinforced concrete side span in the form of a continuous box girder bridge.
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