The cause of the collapse of the Ke Ninh suspension bridge (Quy Chau) needs to be determined soon.
(Baonghean.vn) - The collapse of the Ke Ninh suspension bridge in Chau Hanh commune (Quy Chau) at 12:20 on March 6 was initially assessed to be due to subsidence of the soil under the anchor bar on the right side of pier M2, causing the anchor bar to shift, pulling the cable pillar, causing the cable pillar to fall, collapsing the entire bridge.
Information from the People's Committee of Quy Chau district, at 12:20 on March 6, a bridge collapse occurred in the district.hang the man, Chau Hanh commune.
Ke Ninh suspension bridge was built to replace Ke Ninh ferry. Construction of the bridge began in 2013 and was completed and put into use in 2014.
In 2022, due to the impact of the rain and flood, the right slope of pier M2 (left bank of Hieu River) collapsed with a volume of over 1,000m3; the anchor bar protection box is broken, cracked, broken and partially sunk the concrete road surface at the head of pier M2; the cable anchor bar of pier M2 downstream is tilted, currently about 40cm lower than the remaining anchor bar.
Immediately after the incident, the District People's Committee closed the road, placed warning signs and announcements, assigned guards to prohibit people and vehicles from traveling on the bridge, and reported the incident to the Provincial People's Committee, the Department of Transport and relevant agencies and units.
In Report No. 642/BC-UBND dated October 4, 2022 sent to the Department of Transport, the People's Committee of Quy Chau district requested the department to consider and support the survey to assess the cause of the tilted anchor bar as mentioned above and propose remedial measures to ensure traffic safety and construction safety. If necessary, it is requested to guide the District People's Committee to carry out procedures to invite a team of experts to conduct a survey, assess the cause and specific remedial measures.
On October 17, 2022, the Department of Transport issued Document No. 3449/SGTVT-QLCL on the inspection of the damage status of Ke Ninh suspension bridge, Chau Hanh commune. In particular, it recommended that the District People's Committee direct relevant departments, agencies and the Chau Hanh Commune People's Committee to close the road at both ends of the bridge to prevent traffic from passing through the bridge; urgently hire a reputable consulting unit to conduct an inspection, assess the level of damage to the project and propose solutions to ensure quality. Quickly and urgently repair the project to ensure the safety of the project, the safety of people and vehicles traveling through the bridge.
The District People's Committee has directed and promptly and fully implemented the contents of the superiors. After receiving the results of the inspection and assessment by the expert (University of Transport), the District People's Committee requested the policy of supporting funding for repairs. On September 22, 2023, in Document No. 8046 /UBND-KT, the Provincial People's Committee agreed to support funding for Quy Chau district to repair the Ke Ninh suspension bridge project.
However, just a few days after the Provincial People's Committee issued Document No. 8046/UBND-KT, Quy Chau district suffered a historic storm and flood that occurred in the early morning of September 27, 2023. This storm and flood damaged many infrastructure works in the area. As for Ke Ninh suspension bridge, there were additional negative impacts, and the landslide situation became more serious.
Recently, the District People's Committee approved the investment policy to repair Ke Ninh suspension bridge with the solution of reinforcing the roadbed behind 2 bridge abutments, filling the negative slope of abutment M2, and building a protective mound for the main cable. However, while waiting for funding, the bridge collapsed.
“After the incident, the District People's Committee directed the implementation of solutions to ensure the safety of people living and working on both sides of the bridge area; arranged security forces to protect the scene to serve the inspection work of the authorities. To know the exact cause, we have to wait for the conclusion of the authorities. But according to the initial assessment, it was due to the subsidence of the land under the anchor bar on the right side of pier M2, causing the anchor bar to shift, pulling the cable pillar, causing the cable pillar to fall, collapsing the entire bridge…”, a leader of Quy Chau district said when asked.
