In the technical and economic report appraisal results for the repair project of the Ramp CV1C branch of Vĩnh Tuy Bridge, the Department of Construction stated that the Ramp CV1C branch from Vĩnh Tuy Bridge to Nguyễn Khoái Dyke was affected by the car park fire under the bridge (which occurred on August 30, 2025). As a result, an independent repair project is required.
This project aims to restore the load-bearing capacity of the beams and pillars, ensuring long-term structural safety and traffic security.
The total repair cost exceeds 2.6 billion VND, with the project scheduled to run from October to December 2025.
Specifically, the Department of Construction detailed that for spans N1 and N2 of the CV1C ramp branch and pillars T2 CV1C and T3 CV1C, damaged concrete will be removed and replaced with high-strength concrete spraying. For span N1, post-concrete spraying, the repair unit will tension the prestressed cables.
The underside of Vĩnh Tuy Bridge towards Nguyễn Khoái Dyke after the recent car park fire. Photo: AT
At span N1 of the CV1C ramp branch (from pier M1CV1C-T2CV1C), the construction unit will remove fire-damaged concrete, drill and embed steel bars, add D14 steel mesh linked to existing steel, spray 45MPa concrete with an average thickness of 120mm, and finish the surface post-spraying.
At the bottom of span N1’s beam, the unit will tension prestressed cables to enhance load capacity, adding two cable anchors at each end and two horizontal beams with embedded steel linked to the beam’s bottom. Eight prestressed cable bundles will reinforce the bottom of span N1’s beam.
For span N2 of the CV1C ramp branch (from pillar T2CV1C-T3CV1C), fire-damaged concrete will be removed to an average depth of 60mm from the current beam surface. Steel bars will be drilled and embedded, D10 steel mesh added and linked to existing steel, 45MPa concrete sprayed with an average thickness of 60mm, and the surface finished post-spraying.
For the underside structure, pillar T2 of the CV1C ramp branch will have fire-damaged concrete removed to an average depth of 60mm from the current pillar surface. Steel bars will be drilled and embedded, D10 steel mesh added and linked to existing steel, 35MPa concrete sprayed with an average thickness of 60mm, and the surface finished post-spraying.
