Bosphorus Bridge is and the total height of the towers is . The clearance of the bridge from sea level is . Upon its completion in 1973, the Bosphorus Bridge had the fourth-longest suspension bridge span in the world, and the longest outside the United States (only the Verrazano-Narrows Bridge, Golden Gate Bridge and Mackinac Bridge had a longer span in 1973). The Bosphorus Bridge remained the longest suspension bridge in Europe until the completion of the Humber Bridge in 1981, and the longest suspension bridge in Asia until the completion of the Fatih Sultan Mehmet Bridge (Second Bosphorus Bridge) in 1988
Osman Gazi Bridge works to Danish engineering design firm COWI A/S, which collaborated for the aesthetic design with Dissing+Weitling. Notice to proceed was given by NOMAYG JV to IHI on 1 January 2013 and the expected total project duration was 37 months. The dimensions are: The 34,000 tons of steel used to build the bridge was brought from ArcelorMittal Galaţi, Romania. The bridge is fourth longest suspension bridge in the world. On 21 March 2015 a catwalk broke away from its bolted joint cable on the south tower during the construction at the bridge and fell into the water. Added in February 2015,