27 On September 2010, General Directorate of Highways and Otoyol Yatırım ve İşletme A.Ş. In accordance with the implementation agreement signed between 15 and March 2013, the construction of a total length of 427 km between Gebze and İzmir is continuing. Total 2.682 meter length Osmangazi Bridge 30 located on the Izmit Bay within the scope of the project was opened to traffic with the official opening ceremony held on June 2016. With the opening of the bridge to traffic, the distance traveled by the 1,5 hourly vehicle driving in advance is crossed in 6 minutes. The bridge is the longest 1.550 in the world, with the main span of 4 meters long. is a suspension bridge.