The Sava Bridge is located between Kosnica and Ivanja Reka interchanges of the A3 motorway near Zagreb in Croatia, spanning Sava River. It is 1,064.5 metres (3,492 ft) long, and it comprises four traffic lanes and two emergency lanes. Construction work on the Sava Bridge started in 1977 and was opened to traffic in 1981. When completed, the bridge was the largest, in terms of its plan area, prefabricated girder bridge in Croatia. The bridge was designed by Zvonimir Lončarić and built by Hidroelektra, Zagreb.