Belgrade bypass

The Belgrade bypass (Serbian: Обилазница око Београда / Obilaznica oko Beograda) is a U-shaped, 69-km long motorway of which some 45 km is the section of A1 motorway (currently under construction) and the rest is planned eastern prolongation of A3 motorway. It partially encircles the city of Belgrade, the capital of Serbia.

The construction of the bypass started in 1990 and its parts have been sporadically built ever since. Its completion is expected to help alleviate Belgrade's traffic congestion, and remove all transit traffic from the city itself.

Section A is 9.7 km long part of A1 motorway that intersects with A3 motorway at Dobanovci interchange. It is completed and opened to traffic in 2012.

Section B is 35.9 km long part of A1 motorway that will intersect with A2 motorway at future Surčin interchange. It is currently under construction, with some 12.7 km of in service, another 18 km are partially in service (one carriageway opened to traffic in 2011, another under construction), and on final 7.4 km construction is set to begin in 2017. It spans the hilly terrain to the south of Belgrade, and will eventually include 4 tunnels and 40 viaducts when completed, nine of them over 400 m long, with dual carriageway Ostružnica bridge across the Sava.

Table's current progress status is as of May 2017.

Section C is planned 21 km long eastern prolongation of A3 motorway (which itself will connect Belgrade with Pančevo and Vršac and eventually Romania at border crossing near Vatin). This is the most complex section of the bypass, as its construction involves building a 1,190-metre-long (3,900 ft) bridge over the Danube, and additional 11 viaducts and 2 tunnels. Its exact route is not decided yet, nor the start of the construction.

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