Osmangazi Bridge Osmangazi Köprüsü | |
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.jpg) Osmangazi Bridge at the Gulf of İzmit | |
| Coordinates | 40°45′19″N 29°30′57″E / 40.755153°N 29.515712°E |
| Carries | 6 lanes of O-5 motorway |
| Crosses | Gulf of İzmit |
| Locale | Kocaeli, Turkey |
| Official name | Osmangazi Köprüsü |
| Other name(s) | İzmit Bay Bridge |
| Named for | Osman Gazi |
| Maintained by |
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| Characteristics | |
| Design | Suspension |
| Material | Steel |
| Pier construction | concrete |
| Total length | 2,682 m (8,799 ft)[1] |
| Width | 35.93 m (117.9 ft)[1] |
| Height | 234.425 m (769.11 ft) (pylons)[1] |
| Traversable? | Yes |
| Longest span | 1,550 m (5,090 ft) |
| No. of spans | 3 |
| Piers in water | 2 |
| Clearance below | 64 m (210 ft) |
| History | |
| Architect | Dissing+Weitling |
| Designer | IHI Corporation |
| Contracted lead designer | IHI Corporation |
| Engineering design by | COWI A/S |
| Construction start | 30 March 2013 |
| Construction end | 30 June 2016 |
| Construction cost | US$ 1.2 billion[2] |
| Inaugurated | 1 July 2016 |
| Statistics | |
| Daily traffic | approx. 6000 PCE/day [3] |
| Toll | ₺184,50 (2022- Passenger Vehicles) |
| Location | |
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The Osmangazi Bridge (Turkish: Osmangazi Köprüsü) is a suspension bridge spanning the Gulf of İzmit at its narrowest point, 2,620 m (8,600 ft). The bridge links the Turkish city of Gebze to the Yalova Province and carries the O-5 motorway across the gulf.
The bridge was opened on 1 July 2016 to become the then-longest suspension bridge in Turkey and the fourth-longest (seventh-longest as of 2023) suspension bridge in the world by the length of its central span.
The length of the bridge was surpassed by the Çanakkale 1915 Bridge across the Dardanelles strait, which became the longest suspension bridge in the world when it was opened on 18 March 2022.