If you are in the Atlantic and want to reach the Pacific (or vice versa), the only viable option from the point of view of time and distance is pay the fee and cross the 80 kilometers of the Panama Canal. The options of surrounding the northern or southern part of the continent are directly unfeasible, whether due to distance, climate, geopolitics or danger. But Panama is not the only country that has a privileged location from a logistical point of view: there is Colombia, Costa Rica, Honduras, Guatemala, Nicaragua or Mexico.
In fact, a few years ago Nicaragua already tried his own channel without success. Now it is Mexico that has put an ambitious project on the table: the Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT). Of course, it is not an artificial waterway that unites the two oceans, but rather a combination of ports and railways to connect both coasts of the North American country.
A “dry canal”. The Interoceanic Corridor of the Isthmus of Tehuantepec is a multimodal infrastructure project that combines three railway lines, which exceed 1,200 kilometers of tracks (including branches) with two ports, the from Coatzacoalcos (Veracruz) and Salina Cruz (Oaxaca). The idea of passage is the following: the containers disembark at a port, cross the territory by train and are re-embarked on the other side, all of this in less than seven hours. Your goal is transport 1.4 million containers a year.
The three railway lines of the Interoceanic Corridor of the Isthmus of Tehuantepec
Why is it important. The Mexican government itself refers This project is considered to be of great importance for the economic development of the country for three reasons: the improvement of its railway and port infrastructure, promoting the transfer of goods and also becoming a competitor to the Panama Canal. It will be especially interesting for those boats that do not fit in the canal, such as post-Panamax and Ultra Large ships.
The corridor is also a blessing for the nearshoring at a time when the American market (and its president) is inviting companies to leave China in favor of localizations closer ones like Mexico: being able to move goods from the Pacific to the Atlantic and vice versa is a real boost. Finally, this infrastructure will contribute to the development of the region: crosses 79 municipalities46 from Oaxaca and 33 from Veracruz.
The infrastructure, in detail. The system is articulated in three axes:
- Line Z, from Coatzacoalcos to Salina Cruz, 214 km.
- The FA Line, from Coatzacoalcos to Palenque, 308 km.
- Line K, from Ixtepec to Ciudad Hidalgo, 476 km.
As for ports, although Coatzacoalcos on the Atlantic and Salina Cruz on the Pacific are the main nodes, Dos Bocas and Puerto Chiapas are complementary. Furthermore, it carries the industrial impulse under its arm: the project includes the construction of 14 industrial parks along the corridor forming different clusters. The government provides logistics infrastructure and access to suppliesthus tax benefits to promote companies to establish themselves.
The roadmap. The Government of Mexico formalized the CIIT roadmap for the period 2025–2030. Regarding the railway lines, the Z has been operating since December 2023, the FA line since September 2024 and the one that is still under construction is the K line. However, its completion is planned by June 2026.
As for the ports, the project contemplates the modernization of all of them to reinforce their capacity and increase their depth, essential to allow the docking of larger and more ships. The objective of the Mexican government is that the Corridor operate at 100% by mid-2026. Bottom line: In theory, it’s just around the corner.
Yes, but. The real success of the Corridor depends on the railways, ports, roads and industrial parks functioning as a single perfectly assembled and optimized system. At the moment, ports, trains and industrial estates are going at different paces.
Currently, the Corridor is partially operational and the difference between installed capacity and real demand is abysmal: according to the 2024 Railway Statistical Yearbook of the Railway Transport Regulatory Agencythe railroad moved 111,000 tons of agricultural cargo and 1,000 tons of industrial cargo, well below what is expected for a competitor to the Panama Canal. In addition, it has handicaps compared to its neighbor’s structure: having to unload, load into a wagon and reload is a structural disadvantage compared to a direct transfer.
The project brings with it challenges such as environmental threats not only derived from the seismic conditions of the Isthmus and high rainfall, but also the risk of deforestation, endangered species or water stress derived from industrial activity. Finally, insecurity and the lack of qualified labor can also cause a dent in its real impact in Mexico.
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