Eurasia tunnel or Bosphorus Strait Highway Tube Crossing Project is a road tunnel that connects the Asian and European sides, which was laid on February 26, 2011, under the sea floor and allows the passage of the Bosphorus under the route of Kumkapi on Kennedy Street and The Jogging Road on the D-100 Highway.
The Eurasia Tunnel Project, which combines the Kazlıçeşme-Göztepe line, significantly reduces travel time in the city, where heavy traffic is effective. With the completion of the Eurasia Tunnel Project, citizens began to travel quickly with their vehicles.
The project includes improving two existing roads on the Anatolian and European sides of Istanbul and the construction of a double-storey tunnel under the sea floor south of the Strait. The length of the project is about 14.6 km.
During the 25-year operation of the Eurasia Tunnel, which guarantees 70,000 vehicle crossings per day and a fee of $4 per vehicle, the amount the company will receive from the state due to vehicles passing and not passing amounts to $2.6 billion. The Eurasia Tunnel cost $1.4 billion. Two more could have been built with the money the tunnel would have made in 25 years. The tunnel is guaranteed 25,125,000 vehicles per year. In 2019, 17,514,000 vehicles passed, while the number of vehicles that did not pass was 7,611,000. The cost to the Treasury reached 244 million TL in one year.
4.1 million drivers used the Eurasia Tunnel, which connects Asia and Europe under the Bosphorus Strait, 64.5 million times. The tunnel contributed 6 billion TL to the country’s economy.