The Bosphorus Bridge also called the First Bosphorus Bridge (Turkish: Boğaziçi Koprüsü or 1. Boğaziçi Koprüsü ) is a bridge in Istanbul, Turkey spanning the Bosphorus strait (Turkish: Boğaziçi). The bridge is located between Ortaköy (European side) and Beylerbeyi (Asian side). It is a gravity anchored suspension bridge with steel pylons and inclined hangers. The aerodynamic deck is hanging on zigzag steel cables. It is 1,560 m long with a deck width of 39 m. The distance between the towers (main span) is 1,074 m (World rank: 13th) and their height over road level is 105 m. The clearance of the bridge from sea level is 64 m. It was the 4th longest suspension bridge in the world when completed in 1973, and the longest outside the United States of America.