Turkey Secures $6.75 Billion for Intercontinental Railway: Project Details and Map

February 25, 2026, Istanbul. Some projects force you to look at the map in a new way. The Northern Ring Railway in Turkey is exactly such a case. Turkey’s Minister of Transport and Infrastructure, Abdulkadir Uraloğlu, announced a preliminary agreement with six international financial institutions for $6.75 billion (approximately £5.33 billion / CA$9.13 billion)**. This is Turkey’s largest railway project with external financing, and it has the potential to transform logistics not only in Istanbul but across the entire region between Asia and Europe.

The list of lenders reads like a who’s who of global financial institutions: the World Bank, the Asian Infrastructure Investment Bank, the Asian Development Bank, the Islamic Development Bank, the OPEC Fund for International Development, and the European Bank for Reconstruction and Development. A group of six serious players that rarely come together for a single project. That alone speaks to the project’s significance.

What Will Be Built and Why

The project involves a 125-kilometer line that will connect the European and Asian sides of Istanbul, the city’s two main airports, and will cross the Yavuz Sultan Selim Bridge. The route: Gebze industrial zone on the Asian side — Sabiha Gökçen Airport — Yavuz Sultan Selim Bridge — Istanbul Airport — Halkalı on the European side. According to the ministry’s press service, this line will reduce pressure on the existing Marmaray rail tunnel (an undersea tube connecting the continents) and, for the first time, directly link the two airports.

“We plan to complete the tender process this year and begin work after the construction site is handed over,”

— the ministry quoted the minister as saying.

According to Uraloğlu,

“thanks to this line, the burden of freight and passenger transport through the Marmaray will be reduced, and Istanbul Airport and Sabiha Gökçen Airport in different parts of the city will be directly connected by rail for the first time.”

Currently, getting from one to the other is a complicated journey with multiple transfers. After the project’s launch, it will become a simple train ride.

The scale of construction is impressive:

“The project will include the construction of 44 tunnels totaling 59.1 km and 42 bridges totaling 22.4 km,”

— the minister stated. This means more than half of the line (81.5 km out of 125) will run either underground or over bridges. This is not just a road, but a highly complex engineering feat.

Impressive Numbers

Upon completion, the line will be able to carry 33 million passengers and 30 million tons of freight annually. These are significant volumes. For comparison, the Marmaray, currently the main rail corridor between the continents, is operating at the limit of its capacity. The new line will not only relieve it but will also create an alternative route for freight trains traveling from Asia to Europe and back.

The minister called this the beginning of a “new era in logistics,” adding that “the railway line over the Yavuz Sultan Selim Bridge will significantly enhance Turkey’s capacity for rail transport between Asia and Europe.”

One is usually cautious about such bold statements, but the numbers here are genuinely impressive. 30 million tons of freight per year is roughly 10% of the total trade volume between Turkey and the EU. And that’s just for one line.

What This Means for Turkey and Its Neighbors

Turkey has long sought to become a transport hub between Europe, Asia, and the Middle East. Its geography is ideal: control of the straits, proximity to the Balkans, the Caucasus, and the Arab world. But infrastructure has lagged behind ambition. This project is an attempt to close that gap.

For businesses, this means faster deliveries, lower costs, and new logistics routes. For passengers, it means comfortable connectivity between two airports currently on opposite sides of the strait. And for investors, it’s a signal that Turkey is serious about investing in infrastructure, bringing in the best international institutions.

Speaking of international institutions, the presence of the Asian Infrastructure Investment Bank and the Islamic Development Bank in the lender pool indicates that the project is seen not as local, but as significant for the entire region. Asian money flows where there is perceived potential.

Some experts note that this is Turkey’s largest railway project with external financing. Typically, such massive constructions drag on for years, relying on budget funds. Here, six international organizations are ready to provide funds upfront, based on a clear plan and engineering solutions.

When to Expect It and What Are the Risks

Minister Uraloğlu stated that they plan to complete the tender process this year, with work starting after the site handover. An optimistic scenario sees construction beginning in 2027. A pessimistic one involves tender delays, disputes with contractors—the standard set of challenges for megaprojects.

The project’s specific challenge lies in its 44 tunnels and 42 bridges over 125 km of track—technically complex and expensive to maintain. Any accident on such a structure could paralyze traffic for weeks. But on the other hand, it’s precisely such challenges that force engineers to devise solutions that later become industry standards.

Benefits for Passengers and Shippers

For passengers, the main advantage is the link between the two airports. Currently, a transfer between Sabiha Gökçen and the new Istanbul Airport is either a 90-minute taxi ride (in traffic) or public transport with three changes. Once the railway is operational, it will become a journey with one change, or even a direct connection if express trains are introduced.

For shippers, the benefits are even greater. The Gebze industrial zone is the largest industrial cluster on the Asian side. Goods from there head to Europe via the bridge and then by rail. Currently, logistics there rely heavily on road transport, which is expensive and slow. The railway will provide stability and predictable delivery times.

The Ukrainian Context: Lessons to Learn

For Ukraine, this project is instructive from at least two perspectives. First, the experience of attracting six different financial institutions to a single project is a masterclass in deal structuring. We will need this when we begin to attract large-scale funding for our own reconstruction.

Second, it’s the integrated approach to infrastructure: not just “building a road,” but integrating it into the existing network, connecting airports, industrial zones, and residential areas, and planning freight and passenger logistics as a cohesive whole. We often still build in isolation and then wonder why no one uses the new infrastructure.

Third, 33 million passengers per year is a benchmark. If Istanbul, with its 16 million population, can generate such passenger flow on a single line, then our million-plus cities have similar potential. The key is quality planning—and, of course, funding.

Recent experience with Turkish orders for British Steel shows that Turkey is actively developing its rail infrastructure and is ready to purchase materials globally. For Ukrainian metal and rail producers, this represents a potential market—provided, of course, we can offer competitive prices and quality. Ukrainian companies can already begin studying tender documents and seeking cooperation partners.

Strategic Significance for the Region

Let’s not forget that Turkey controls the straits. A massive flow of goods from the Black Sea region to the Mediterranean and beyond passes through the Bosphorus and Dardanelles. A railway connecting the Asian and European sides of Istanbul, bypassing the overloaded Marmaray, will create a new transit corridor. For Black Sea basin countries, including Ukraine, this means additional opportunities to export their products to Europe and Asia.

For UK and North American investors and engineering firms, this project represents a multi-billion dollar opportunity. From tunneling expertise to project management and supply of specialized equipment, there is significant potential for Western companies to participate in one of Eurasia’s most ambitious infrastructure initiatives.

Turkey has long played the role of a bridge between East and West. Now that bridge will have a solid railway foundation. 44 tunnels and 42 bridges over 125 kilometers are not just an engineering feat. They are a symbol that even in an era of crises and turbulence, the world continues to build. Literally. And these construction projects are creating a new reality where distances shrink and opportunities expand.

Not a Conclusion, but the Beginning of a Conversation

Signed memorandums are not yet money in the bank, and agreements are not a guarantee of project completion. But the very fact that six international organizations are ready to invest nearly $7 billion in a railway in Turkey speaks volumes. The world continues to invest in infrastructure, despite all the crises. Because roads, bridges, and tunnels are not just concrete and steel. They are connectivity, economic growth, and the future.

For Turkey, this project is not just a transport artery but a geopolitical statement—the ability to control freight flows between continents, influence logistics, and attract investment. For international banks, it’s an opportunity to participate in shaping the new infrastructure map of Eurasia. For passengers, it’s comfort and time savings. And for us observers, it’s another reminder of how infrastructure projects change the world around us.

And the future, as we know, arrives faster than we think. When the first trains run through the new tunnels, we will remember today as the starting point of a new logistics era at the crossroads of two continents. An era in which Ukraine, too, will have a place—if we properly shape our transport policy and manage to integrate into these new routes.

*Photo source: uab.gov.tr, freyssinet.com, YouTube.

**Currency conversions to GBP and CAD are approximate, based on exchange rates as of February 25, 2026. For precise calculations, please use our currency converter.