Colombia’s 6.1-mile Túnel del Toyo may be the headline act, but a tunnel by itself does not make a working highway. The national roads agency Invías says the project cannot open until the entire mountain corridor, including 18 tunnels, 29 bridges and several surface-road sections, is finished, tested and certified.
The target remains October 2027. Two tunnels, seven bridges and roughly 3.7 miles of surface roadway are still unfinished, while the costly ventilation, lighting, fire protection, communications and traffic-management systems will remain in storage until the civil work is ready.
The tunnel is only one piece
At 6.1 miles, the Guillermo Gaviria Echeverri tunnel is expected to become the longest road tunnel in the Americas. Yet Invías is pushing back on the idea that switching on the main tunnel would immediately create a usable route.
The operational corridor runs for about 23.6 miles and includes close to 10.6 miles of surface road. It is a chain of structures crossing difficult terrain, not a single bore with an entrance and an exit.
Every tunnel portal, bridge deck and connecting section must work as one system. A missing link in a mountain highway is not a minor inconvenience. It can make the rest of the investment unusable.
Why the equipment is staying in storage
Invías director Juan Jiménez said the main tunnel is only one of the 18 tunnels in the project. “It is completely false that installing the equipment in the Túnel del Toyo would allow it to start operating,” he said, pointing to the two tunnels and seven bridges still under the Antioquia government’s responsibility.
The electromechanical package has already been bought and is stored in Colombia. It includes ventilation, lighting, fire suppression systems, communications and Intelligent Transportation Systems, the technology needed to help operate the corridor safely.
Installing that equipment too early could create a second problem before the first is solved. Invías warns that unfinished works, water leaks and unclear responsibility for guarding the equipment could damage components, jeopardize warranties and waste public money.
The real bottleneck is coordination
The national government says it has committed roughly $436 million to the works under its responsibility and secured more than $161 million for the electromechanical contract. Those conversions use Colombia’s official exchange rate for July 27, 2026, so the dollar values may move with currency fluctuations.
But the remaining civil works depend on the Antioquia regional government, which is still seeking the money needed to finish its tunnels and bridges. The regional assembly is considering additional funding, according to Invías.
That division of responsibilities is now as important as the engineering underground. One administration can buy the technology, but it cannot commission a complete corridor while another part of the route remains unfinished. That is where the schedule gets tight.
A road built for trade as well as traffic
The Nueva Vía al Mar, or New Road to the Sea, is part of Colombia’s Autopistas de la Prosperidad and its fourth-generation road concession program. Its public works contract was signed on Dec. 11, 2015, between Antioquia’s infrastructure department and the Antioquia Al Mar consortium.
The corridor is designed to connect the Mar 1 route between Medellín and Santa Fe de Antioquia with Mar 2 between Cañasgordas and El Tigre. That link is intended to improve access between Medellín, the Urabá region, central Colombia and both the Pacific and Atlantic coasts.
For businesses, the promise is simpler. Shorter journeys can mean fewer hours lost in mountain traffic, lower transport friction and a more direct route for cargo moving toward the coasts. Invías says the completed road could cut travel between Medellín and Urabá by 4.5 hours.
The safety case comes before the ribbon cutting
The new road is designed for speeds of up to about 50 mph, but speed is not the immediate issue. Before drivers enter the system, every civil structure and every safety installation must be certified to work together.
That sequencing matters in any complex infrastructure project. In practice, tunnel operations link ventilation with fire response, communications with incident management and lighting with visibility and evacuation. Turning on one section early may sound like progress, but it does not create a safe end-to-end road.
Jiménez put the concern bluntly, saying Invías could not install equipment without knowing who would protect it while leaks and construction remained. The message is clear. Engineering milestones cannot be replaced by political announcements.
What happens next
Invías says it is willing to coordinate with every institution involved and still maintains the October 2027 delivery timetable. The next decisive step is completing and certifying the two tunnels, seven bridges and remaining surface-road sections.
Only then will crews install the stored electromechanical systems and move toward testing the corridor as a whole. For the most part, the main tunnel is no longer the question. The question is whether all the pieces around it can be finished on the same clock.
That distinction explains why one of the Americas’ most striking engineering projects is not ready for traffic yet. The tunnel may be the centerpiece, but the road cannot open until the entire chain is complete.
The video statement was published on Invías’ Facebook.
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