The Hanoi City Traffic Construction Investment Project Management Board has just reported to the Department of Construction on the plan to start construction of the underpass project at Co Linh intersection.
Accordingly, the project to invest in the construction of the underpass at the Co Linh intersection is expected to start on September 3, 2025, and be completed in December 2027.
The underpass at Co Linh intersection has a total length of about 600m, of which the closed tunnel is 100m long, the open tunnel is about 260m; the retaining wall and the road edge is 240m, connecting to Dam Quang Trung Street and the road leading to Vinh Tuy Bridge.
According to the design, the tunnel cross-section is 27m wide, with 6 lanes; at the same time, sidewalks will be cut, the median strip will be adjusted, and the right and left lanes of the roads around the intersection will be expanded to the maximum. The project has a total investment of nearly 750 billion VND.
After completion, the Co Linh intersection - Vinh Tuy bridge approach road will have 3 levels of road, including overpass, road at the existing intersection and underpass.
The investment in the project aims to close Ring Road 2 according to the plan, resolve conflicts at intersections, connect connections between surrounding routes, gradually complete the traffic infrastructure system, and reduce environmental pollution.