Gebze - Orhangazi - İzmir (Including The Osmangazi Bridge And Access Roads) Motorway Build- Operate- Transfer Project

The total length of the motorway project linking the two major cities in Turkey İstanbul to İzmir, is 433 km including access roads. When completed, the current 2,5-3 hour travel time between İstanbul and Bursa will be reduced to 1 hour, current travel time between from İstanbul to İzmir will be reduced from 8-10 hour to 3,5-4 hours and from İstanbul to Eskişehir will be 2-2,5 hours.

Also, in the scope of the project, İzmit Bay Crossing Bridge, renamed as the Osmangazi Bridge, the most important part of the project, was constructed. Approximately 52.5 km motorway section, together with the Osmangazi Bridge, has been put into service on 30 June 2016.

The Osmangazi Bridge having length of 2.907 m and a having main span length of of 1.550 m ranks 4th among the suspension bridges with the largest span in the world.

Client General Directorate of Highways Contractor Motorway Investment & Operation Co.
Location Izmir – Gebze Section Type of Work Motorway + Suspension Bridge
Total Length of Motorway 433 km (384 km Motorway + 49 km Access Roads) (4 Concessionary Sections (LOTS)) Number of Tunnels 3
Total Length of Tunnels 6.380,09 m Number of Bridges 187
Length of Suspension Bridge 2.907 m Middle Span of Suspension Bridge 1.550 m
Number of Viaducts 35 Total Length of Viaducts 19.720 m
Toll Collection Area 23 Motorway Maintenance- Operation Center 4
Tunnel Maintenance- Operation Center 2 Service Area 17 (OHT)