# Otoyol 5

Otoyol 5 (English: Motorway 5), named the Kocaeli Gebze-Bursa-İzmir Motorway (Turkish: Kocaeli Gebze-Bursa-İzmir Otoyolu) and abbreviated as O-5, is a toll motorway in Turkey. Since being completed in 2019, it connects the Istanbul and Kocaeli metropolitan areas with İzmir, via Bursa and Balıkesir. The O-5 runs parallel to the D575 and the D565 for most of its length and is a major motorway in Turkey as it provides a direct connection between Kocaeli and its surrounding metropolis to the country's 3rd largest (İzmir) and 4th largest (Bursa) cities, bypassing the Gulf of İzmit via the Osman Gazi Bridge. The O-5 also makes up part of the International E-road network E881 thus making it one of the most extensive and expensive transport megaprojects.
The western part of the Bursa Beltway, which is part of the O-5, was completed during the 2000s. The rest of the O-5 has been under construction since the early 2010s, with the first portion opened from Altinova to Gemlik in April 2016. As of April 2017, the O-5 is open in two separate sections: the 105.5 km (65.6 mi) section from its northern terminus in Kocaeli, Gebze to Bursa, across the Osman Gazi Bridge along with a 18.2 km (11.3 mi) section from Kemalpaşa to its southern terminus in İzmir. The final section, Karacabey to Akhisar, opened on August 5, 2019.
The O-5 is the most expensive toll motorway in Turkey as the price for a personal vehicle from Kocaeli Gebze to Izmir 147 km (91 mi), ₺ 984 (US$ 29.76), including the Osman Gazi Bridge toll of ₺ 399.00 (US$ 12.07).

## Kocaeli Gebze-Bursa-İzmir Motorway Project details

The project includes the Osman Gazi Bridge, the Kocaeli,Gebze-Bursa section and the Bursa-İzmir section of Otoyol 5. It is a build-operate-transfer project which was awarded to a consortium consisting of 5 companies (Nurol, Özaltın, Makyol, Göçay and Astaldi).

### Key dates

* Tender: 9 April 2009
* Signing of contract: 27 September 2010
* Date of effect: 15 March 2013
* End of contract: 15 July 2035
* Construction time: 7 years

### Guaranteed traffic volumes

* Gebze-Orhangazi (including bridge): 40000 PCU/day
* Orhangazi-Bursa: 35000 PCU/day
* Bursa-Balıkesir: 17000 PCU/day
* Balıkesir-İzmir: 23000 PCU/day

### Technical details

* 377 kilometres of motorway, 44 kilometres of connection roads
* 1 suspension bridge with a main span of 1,550 metres Osman Gazi Bridge
* 30 viaducts (18,212 metres)
* 3 tunnels (6,200 metres)
* 209 small bridges
* 18 toll plazas
* 7 service areas and 7 parking areas

## Tunnels

* Orhangazi Tunnel - 3,586 m (11,211 ft)
* Selçukgazi Tunnel - 1,234 m (4,049 ft)
* Belkahve Tunnel - ~1,700 m

## Exit list

| Province | District | km | mi | Exit | Destinations | Notes |
| Kocaeli | Gebze | 0.0 | 0.0 | K1 | O-4 — Istanbul, Ankara | |
| Gulf of İzmit | Gulf of İzmit | 5 | 3.1 | Osman Gazi Bridge Toll ₺ | Osman Gazi Bridge Toll ₺ | Osman Gazi Bridge Toll ₺ |
| Yalova | Altınova | 12.7 | 7.9 | K2 | D.575 — Yalova, İzmit | |
| Yalova | Çiftlikköy | 24.2 | 15.0 | K3 | Taşköprü Kılıç Rd. — Kılıç [tr] | |
| Yalova–Bursa line | Çiftlikköy–Orhangazi line | 30.9 | 19.2 | Orhangazi Tunnel | Orhangazi Tunnel | Orhangazi Tunnel |
| Bursa | Orhangazi | 39.5 | 24.5 | K4 | D.150 — Orhangazi, İznik | |
| Bursa | Orhangazi | 58.2 | 36.2 | K5 | D.575 — Gemlik / P.16-09 — Dırazali | Connects to D.595 |
| Bursa | Gemlik | 66.6 | 41.4 | K6 | D.575 — Gemlik | |
| Bursa | Osmangazi | 77.9 | 48.4 | Selçukgazi Tunnel | Selçukgazi Tunnel | Selçukgazi Tunnel |
| Bursa | Osmangazi | 79.5 | 49.4 | Ovaakça Toll Plaza | Ovaakça Toll Plaza | Ovaakça Toll Plaza |
| Bursa | Osmangazi | 83.8 | 52.1 | K7 | O-22 — Turanköy | East end of the Bursa Beltway |
| Bursa | Nilüfer | 91.7 | 57.0 | K8 | D.575 — Mudanya | |
| Bursa | Nilüfer | 100.1 | 62.2 | K9 | Görükle connector — Görükle | Connects to D.200 |
| Bursa | Nilüfer | 105.5 | 65.6 | K10 | D.200 — Çanakkale | West end of the Bursa Beltway |
| Bursa | Karacabey | 107.1 | 66.5 | Karacabey Toll Plaza | Karacabey Toll Plaza | Karacabey Toll Plaza |
| Bursa | Karacabey | 142.5 | 88.5 | K11 | D.200 — Karacabey | |
| Balıkesir | Susurluk | 173.2 | 107.6 | K12 | D.565 — Susurluk | |
| Balıkesir | Balıkesir | 201.4 | 125.1 | K13 | D.565 — Balıkesir | |
| Balıkesir | Balıkesir | 230.5 | 143.2 | K14 | D.230 — Balıkesir, Edremit | |
| Balıkesir | Savaştepe | 262.4 | 163.0 | K15 | P.10-51 — Savaştepe | |
| Manisa | Soma | 277.4 | 172.4 | K16 | P.45-04 — Soma | Connects to D.240 |
| Manisa | Kırkağaç | 299.5 | 186.1 | K17 | D.240 — Soma | |
| Manisa | Akhisar | 315.1 | 195.8 | K18 | Akhisar connector — Akhisar | Connects to D.565 |
| Manisa | Saruhanlı | 339.6 | 211.0 | K19 | D.565 — Saruhanlı | |
| Manisa | Turgutlu | 373 | 232 | K20 | D.250 — Turgutlu, Manisa | |
| İzmir | Kemalpaşa | 385 | 239 | Sancaklı Toll Plaza | Sancaklı Toll Plaza | Sancaklı Toll Plaza |
| İzmir | Kemalpaşa | 385.6 | 239.6 | K21 | İstiklal St. — Akalan | |
| İzmir | Kemalpaşa | 389.6 | 242.1 | K22 | Kemalpaşa connector — Kemalpaşa | Connects to P.35-25 and P.35-26 |
| İzmir | Kemalpaşa | 393.4 | 244.4 | K23 | 40th St. — Kuyucak | |
| İzmir | Kemalpaşa | 396.8 | 246.6 | K24 | Necdet Bukey Ave. — İstiklal, Ulucak | |
| İzmir | Kemalpaşa–Bornova line | 399.3 | 248.1 | Belkahve Tunnel | Belkahve Tunnel | Belkahve Tunnel |
| İzmir | Bornova | 407.8 | 253.4 | K25 | Karasuluk connector — Bornova | Connects to D.300 |
| İzmir | Bornova | 408.6 | 253.9 | K9 | O-30 — Menemen, Balçova | İzmir Beltway |
| İzmir | Bornova | 409.4 | 254.4 | | Kamil Tunca Blvd. — İZOTAŞ | İzmir Coach Terminal |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Tolled |||||||