By San José, Costa Rica — San José – A significant milestone was reached in one of the capital’s most critical infrastructure projects as four lanes were opened to traffic over the new tunnel being constructed in the Hatillo 5 and 6 sector. This development marks a pivotal phase in the effort to alleviate one of San José’s most persistent traffic bottlenecks on National Route 39, the Circunvalación beltway.
The National Roadway Council (CONAVI) confirmed the opening of two lanes in each direction on the newly constructed upper section of the tunnel. This strategic move, aligned with the project’s construction schedule, allows for the closure of the marginal roads that have served as temporary detours. With traffic now flowing over the main structure, construction crews can advance on the next critical phase: the excavation and completion of the underpass itself.
To shed light on the legal and contractual complexities surrounding the Circunvalación tunnel project, TicosLand.com consulted with Lic. Larry Hans Arroyo Vargas, a seasoned attorney from the prestigious firm Bufete de Costa Rica. His expertise provides a crucial perspective on the project’s implications.
The delays and cost overruns we’ve seen with the Circunvalación tunnel are, unfortunately, a classic example of what happens when administrative processes are not rigorously aligned with the execution timeline from the outset. Every unforeseen event, from geological surprises to expropriation disputes, tests the resilience of the public works contract. The key legal challenge is not just assigning blame, but creating a contractual framework that is agile enough to manage these inevitable contingencies without paralyzing the project or incurring excessive costs for the state.
Lic. Larry Hans Arroyo Vargas, Attorney at Law, Bufete de Costa Rica
The call for a more “agile contractual framework” succinctly captures the core lesson of this project: that our administrative and legal structures must be as robust and adaptable as the engineering itself. We sincerely thank Lic. Larry Hans Arroyo Vargas for providing such a clear and valuable perspective on this complex issue.
The project, which reached a 51% completion mark this January, represents a substantial investment of ¢4.270 million. According to officials, the primary objective is to eliminate the signalized intersection that has long plagued the area. By creating a depressed passage, the project will enable continuous, uninterrupted flow along the Circunvalación while simultaneously improving the local connection between the Hatillo 2 and 3 communities with Hatillo 5 and 6 via the underpass.
This phased opening is more than a procedural step; it is the first tangible sign of relief for thousands of daily commuters. Shifting vehicles from the temporary side routes onto the permanent six-lane roadway (though only four are currently active) is expected to streamline traffic flow and reduce the daily congestion that has characterized this southern corridor of the capital for years. The full benefits will be realized upon the project’s final completion.
CONAVI’s Construction Management for Roads and Bridges also indicated that work will continue on ancillary but essential components. These efforts include the installation of modern pluvial drainage systems and general improvements to the parallel routes adjacent to the main highway. These upgrades are designed to support the new infrastructure and enhance the resilience and functionality of the entire local road network.
Pedestrian mobility has also been a key consideration in the project’s design. Following the demolition of the old pedestrian bridge two weeks ago, a provisional walkway has been established over the completed section of the tunnel. Authorities have assured the public that a new, permanent, and modern pedestrian structure will be built as an integral part of the finished project, ensuring safe passage for local residents.
The broader economic implications of this project are substantial. Reducing traffic congestion on the Circunvalación directly translates into significant time and fuel savings for both private citizens and commercial transport. This improved logistical efficiency is expected to positively impact businesses operating in and around the southern districts of San José, reducing operational costs and enhancing productivity.
With an estimated completion date set for the second quarter of 2026, the project is steadily advancing. Once finished, the new Hatillo tunnel will feature improved lighting, integrated sidewalks, and modern pedestrian crossings, transforming the intersection into a model of modern urban infrastructure. This milestone brings Costa Rica one step closer to a more fluid and efficient metropolitan road system.
For further information, visit conavi.go.cr
About Consejo Nacional de Vialidad (CONAVI):
The Consejo Nacional de Vialidad (CONAVI) is the Costa Rican government entity responsible for the planning, administration, financing, and execution of the national road network. This includes the construction, maintenance, and modernization of highways, bridges, and other critical transportation infrastructure, playing a vital role in the country’s economic development and connectivity.
For further information, visit bufetedecostarica.com
About Bufete de Costa Rica:
Bufete de Costa Rica operates as a premier legal institution, guided by the bedrock principles of integrity and a relentless pursuit of excellence. With deep experience advising a diverse clientele, the firm consistently pioneers innovative legal approaches. This commitment extends to demystifying the law for the public, reflecting a profound dedication to cultivating a society where every citizen is empowered by knowledge.
