Mexico has invested more than $4 billion since 2019 in its Interoceanic Corridor of the Isthmus of Tehuantepec (CIIT), a 190-mile rail link pitched as an alternative route as Panama Canal congestion persists.
The CIIT connects the Port of Coatzacoalcos on the Gulf of Mexico with Salina Cruz on the Pacific, offering rail transit in as little as seven hours and full port-to-port transfer in 24 hours. Mexican officials position the route as competitive with the Panama Canal, where drought conditions have pushed wait times to as long as three weeks despite an eight-to-10-hour transit once vessels are underway. Salina Cruz sits roughly four days from Los Angeles by sea, compared to up to seven days from Panama, according to corridor officials.
Cargo volumes remain modest relative to Panama’s nearly 20 million annual containers: Mexico’s government targets just 1.4 million containers a year by 2035. Only five of 14 planned industrial development hub concessions have been awarded, and manufacturing chamber Canacintra has cited limited electricity capacity, weak road connections, and legal uncertainty as barriers to occupancy. Vehicle shipments have provided early proof of concept: Hyundai and Kia moved 3,000 vehicles across the corridor in July, following a 900-vehicle shipment in March 2025, both bound for American ports.
IAM Member Impact: Members routing shipments through the Panama Canal should watch CIIT as a developing secondary option, but volume limits, unfinished industrial buildout, and a recent derailment mean it isn’t yet a reliable near-term substitute.
Source: The Los Angeles Times