Eurasia Tunnel

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The Eurasia Tunnel Project will be constructed between Kazlicesme and Goztepe regions of Istanbul. It is a 14.6-km route including a 5.4-km twin-deck road tunnel that will cross the Bosphorus beneath the seabed, with the aim to alleviate Istanbul’s traffic pressure.

It is at about 1 km south of Marmaray, which was opened on 29 October 2013. With this new route, the journey time between Kazlicesme and Goztepe will be shortened from 100 minutes to 15 minutes.


The conceptual background of Eurasia Tunnel, reaches back to the findings of the Transportation Master Plan undertaken by Istanbul University on behalf of Istanbul Metropolitan Municipality in 1997. Based on this plan, a pre-feasibility study had been conducted in 2003 for a new Bosphorus crossing. According to the results of this study, a road tunnel was recommended as the solution that offers the highest feasibility.

Republic of Turkey Ministry of Transportation has commissioned a feasibility study to Nippon Koei Co.Ltd. in 2005 for an assessment of route alternatives for a new tunnel crossing. Based on environmental and social criteria and cost and risk factors, the study has supported the proposed route as the preferred option.

The two current bridges have also been taken into consideration in selecting the tunnel’s location, which enables a balanced distribution in Bosphors crossings. Among other selection criteria, lowest investment cost due to a shorter tunnel length and sufficient space for construction sites and operational buildings (toll plaza, administrative units) have also stood out. High level assessments based on corridor alternatives that are comprehensively defined in the feasibility study also support the selection of the proposed route in terms of environmental and social costs and risk factors.


Avrasya Tüneli ??letme ?n?aat ve Yat?r?m A.?. (ATA?) has been founded in 26/10/2009 by the partnership of Yap? Merkezi from Turkey and SK E&C from Korea.

The Build Transfer Operate Model adopted at the Eurasia Tunnel, has brought together the private investment dynamism and their project experience, and the support of international financial institutions.

The European Bank for Reconstruction and Development (EBRD) is supplying a finance package worth US$150 million. Other components of the $1.4 billion financing package include a $350 million loan from the European Investment Bank (EIB) and financing and guarantees from Korea Eximbank and K-Sure, also with participation from SMBC, Standard Chartered and Mizuho. A hedging facility for the transaction is provided by some of the lenders as well as Deutsche Bank.

Project segments

The Project comprises three main segments:

European Side

Construction of 5 U-turns as underpasses and 7 pedestrian crossings as overpasses along Kennedy Street that stretches between Kazl?çe?me and Sarayburnu. Widening of the entire Segment 1, which is approximately 5.4 km, from 3x2 lanes to 2x4 lanes.

Bosphorus Crossing

The construction of a 5.4-km, two-deck road tunnel with two lanes on each deck, a toll plaza and an administrative building on the western end and ventilation shafts on both ends of the tunnel.

Asian Side

Widening from 2x3 and 2x4 lanes to 2x4 and 2x5 lanes along an approximately 3.8 km-stretch of the current D100 road that links at Goztepe to Ankara-Istanbul State Highway, and construction of 2 bridging intersections, 1 overpass and 3 pedestrian bridges.


Architects and urban planners have questioned the ability of new roads to relieve transportation problems in dense urban environments, damage to sensitive sites from car traffic, lack of transparency, and thorough analysis of the projects impact prior to design.Template:Cn Experts in the Istanbul branches of the Chamber of Engineers and Chamber of Planners question the validity of the claim of traffic relief. They note that the connection will likely increase traffic congestion in the city center and also within the historic peninsula. Increased traffic and congestion in the historic city could have detrimental effects on the architectural monuments via pollution and consequent corrosion.Template:Cn Many of the tunnel's vents will exhaust near significant architectural monuments.Template:Cn Europa Nostra, a cultural heritage organization, believes that the stakeholder engagement process was conducted to meet the requirements for international development funding rather than a genuine desire address stakeholder concerns.Template:Cn

See also

  • Bosphorus Bridge
  • Fatih Sultan Mehmet Bridge
  • Marmaray
  • Bosphorus Strait
  • Public transport in Istanbul



External links