The Izmit Bay Suspension Bridge (Osmangazi Bridge) is the world’s 6th longest suspension bridge, by length of its central span. It is part of a new highway linking the Turkish cities of Izmir and Istanbul and is located at the eastern end of the Marmara Sea, near Izmit and approximately 50 km from Istanbul.
Crossing the Bay of Izmit, the bridge and connecting highway provide three lanes of traffic in each direction. The total length of the bridge is 3,3 kilometers, with a main span of 1550 meters. The highway of 420 km (260 mi) length with the bridge reduces the travel time between the two major cities from 6:30 hours to 3:30 hours.

SUMEX STEEL, the Turkish ZINGA Distributor, has been able to specify a ZINGA system for the Southern Approach Viaduct, resulting in an order of more than 90 tons of ZINGA, 28.000 L of ZINGALUFER and 36.000 L of ZINGACERAM PU.