Haliç Bridge is a highway bridge on the Golden Horn (Turkish: Haliç) in Istanbul, Turkey. It connects the neighborhoods of Ayvansaray in the southwest and Halıcıoğlu in the northwast. The bridge carries the motorway O-1. It was constructed between 1971 and 1974, and entered service on 10 September 1974. The engineering firms which undertook the construction works were IHI Corporation of Japan and Julius Berger-Bauboag AG of Germany. The bridge has a length of 995 m (3,264 ft), a width of 32 m (105 ft), and a height of 22 m (72 ft) above sea level.