The Vietnam Road Administration has just approved a plan to spend over 9 billion VND to salvage the Phong Chau bridge and the vehicles involved in the bridge collapse on September 9th.
The section of Phong Chau bridge that collapsed is on the Tam Nong district side.
Accordingly, the project to mitigate the consequences of natural disasters at Phong Chau Bridge will be implemented under emergency orders with an estimated budget of 9.13 billion VND from the State budget.
This funding is allocated for the salvage of the sunken bridge and vehicles, as well as for traffic diversion, ensuring traffic flow, and deploying personnel to man checkpoints. The Vietnam Road Administration has assigned the Phu Tho Provincial Department of Transport to implement the project, handle the procedures for appointing the construction contractor, and manage the project's progress and quality.
Previously, the Vietnam Road Administration had also received a report on the plan for salvaging the collapsed bridge. Specifically, submerged vehicles located outside the steel truss span will be salvaged immediately, brought closer to shore, and lifted into the storage area using a specialized 150-ton crane.
For vehicles stuck in the steel frame that cannot be salvaged immediately, the construction unit will use a 400-ton crane located on shore and two vessels equipped with salvage gear to lift the steel frame out of the water and cut it into sections.
Tugboats will bring each steel truss section ashore, and a specialized 150-ton crane on shore will lift, place, and position them in the staging area. During the cutting of the steel truss sections, the construction unit will also simultaneously remove any vehicles stuck inside and tow them ashore.
With the steel frame and equipment buried deep under layers of sand and silt, the construction unit will use hoses and suction to remove the accumulated sand and silt before salvage.
For concrete bridge decks, piers, piles, and abutment foundations submerged underwater, the contractor will use a 400-ton crane mounted on shore and two vessels equipped with salvage cranes to lift them to the surface. As the concrete protrudes, excavators equipped with concrete breakers mounted on the vessels will demolish it.
Regarding the collapsed section of bridge pier T7, which cannot be dismantled or towed, the Vietnam Road Administration has not yet calculated the cost of handling it. For the time being, the relevant authorities will deploy buoys to warn of waterway traffic safety, and will survey the area to determine a suitable demolition method once the water recedes.
Bao Khanh
Source: https://baophutho.vn/chi-hon-9-ty-dong-truc-vot-cau-phong-chau-va-phuong-tien-gap-nan-219566.htm
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