According to the adjustment of the general planning until 2035, Thai Nguyen is oriented to develop both sides of the Cau River according to the ecological urban model, multi-center.
While the South Bank has developed strongly with many projects, the North Bank still has a large and potential land fund.
Therefore, Thai Nguyen province is prioritizing investment in infrastructure to exploit the advantages of this area to increase inter-regional connectivity.
To realize this goal, Thai Nguyen has simultaneously built Quang Vinh 1 and Quang Vinh 2 river overpasses combined with a connecting road system, contributing to the completion and shaping of a new traffic axis.
The two projects will be implemented from the beginning of 2025, part of a project with a total investment of more than 1,500 billion VND, from the state budget, the investor is the Thai Nguyen City Construction Investment Project Management Board.
According to the design, Quang Vinh 1 Bridge has a total length of more than 3.4km including access road and bridge, starting point Km0+0.00 at the intersection between Duong Tu Minh Street.
The end point of the route is at Km138+118, intersecting with National Highway 17 in Linh Son ward (formerly Chua Hang ward, Thai Nguyen city).
The bridge is designed with a structure of box girders and prestressed reinforced concrete, combined with a steel arch.
Located not far away, Quang Vinh 2 bridge connects Quan Trieu ward (formerly Quang Vinh ward) with Linh Son ward (formerly Dong Bam ward).
The starting point of the bridge is at the intersection with Quang Vinh 1 route. The end point is at the intersection of the planned road of the European Neighborhood Project on the riverbank and bridge (going straight 100 m is Ben Tuong bridge).
The project has a total length of about 1.43 km (including the connecting traffic system). The sections have different widgets, from 27m to 40.5m.
With the main span structure design being a cable-stayed rope, with a steel main beam. The tower is designed in the shape of a leaf.
According to Lao Dong Newspaper reporters in mid-August 2025, both projects are in the site clearance phase. The pile filling work is carried out at the same time as the water suction to treat the foundation.
At the construction site, workers and machinery are mobilized, focusing on leveling the ground, welding and connecting steel structures, gradually completing the bridge frame.
Informing reporters, the Thai Nguyen Provincial Traffic and Agricultural Construction Investment Project Management Board said that construction units are urgently implementing many items, in which some locations have completed the foundation and embankment.
At abutments M1, T1 and T2, the bored piles, abutment piles, and pillars (T1) have been completed, and the contractor is currently erecting the abutment body, pillar body... according to the design.
The T3 pillar alone has only constructed 23/30 piles, and the implementation is currently interrupted due to floods sweeping away temporary bridges and service roads.
For Quang Vinh 2 Bridge, at the M1 abutment area, the construction unit has basically completed the roadbed to the foot of the retaining wall, and deployed a drainage culvert on the left side of the route and a reinforced concrete retaining wall.
The contractor is currently continuing to construct the retaining wall with a core and a 2x2m box culvert. As for the M1 abutment, the items of bored piles, abutment racks, abutment body and wing walls have been completed according to the design.
At pillar T1, the bored drilling, pedals and pillar body have been completed, and the construction unit is currently installing a scaffolding system to deploy the hat and beam items.
For the T2 pillar, 5/8 bored piles have been completed, and 2 other bored piles have been continued. For pillar T3 alone, the contractor has completed 4/25 bored piles.
According to the plan, the two bridges will be completed in 2026, completion and operation will contribute to improving transport infrastructure, increasing regional connectivity, and expanding urban space.
