Cracks and potholes have spread across the surface of the US$48 million Thuan Phuoc suspension bridge in the central city of Da Nang three years after it was opened to traffic, and the investor has claimed it is because the bridge was built under “too modern a technology.”
Local residents have described crossing the four-lane bridge, which spans 1.8km across the lower Han River, as feeling like riding on horseback.
The investor, meanwhile, has been busy assigning forces to repair the road surface, with the latest fixing phase starting earlier this month.
On the bridge, which has become one of the noteworthy sightseeing posts in Da Nang, workers are now patching the potholes, some of which are filled with water after recent downpours, while the surface is still full of cracks.
Some locals have fallen off their bikes when hitting the poorly-patched cracks, cameramen who take photos for tourists on the bridge said.
The middle part of the bridge started to deteriorate in 2011, and the city’s Department of Transport has fixed two of the largest cracks, and is now working on two others, according to deputy director Le Van Trung.
However, reality shows that after two years of repairing, new cracks and holes continue to develop in other parts of the bridge.
Modern technology
Trung, from the transport department, said the main reason for the deteriorated bridge is that it was built under a brand new technology that was applied in Vietnam for the first time.
“The main structure of the bridge is a steel plate and thus the materials designated to cover the plate are all brand new and have never been used in Vietnam before,” he said.
“There are no standards or guidelines on design and construction for such a structure. So we have consulted other agencies to study this new technology,” he added.
Trung said the cracks were caused by the different changes of the steel plate and the concrete surface under harsh weather.
Asked whether the bridge will once again deteriorate once the cracks and potholes are fixed, Trung said, “I have no idea. The entire transport sector in Vietnam has to surrender to this new technology.”
The investor, meanwhile, has been busy assigning forces to repair the road surface, with the latest fixing phase starting earlier this month.
On the bridge, which has become one of the noteworthy sightseeing posts in Da Nang, workers are now patching the potholes, some of which are filled with water after recent downpours, while the surface is still full of cracks.
Some locals have fallen off their bikes when hitting the poorly-patched cracks, cameramen who take photos for tourists on the bridge said.
The middle part of the bridge started to deteriorate in 2011, and the city’s Department of Transport has fixed two of the largest cracks, and is now working on two others, according to deputy director Le Van Trung.
However, reality shows that after two years of repairing, new cracks and holes continue to develop in other parts of the bridge.
Modern technology
Trung, from the transport department, said the main reason for the deteriorated bridge is that it was built under a brand new technology that was applied in Vietnam for the first time.
“The main structure of the bridge is a steel plate and thus the materials designated to cover the plate are all brand new and have never been used in Vietnam before,” he said.
“There are no standards or guidelines on design and construction for such a structure. So we have consulted other agencies to study this new technology,” he added.
Trung said the cracks were caused by the different changes of the steel plate and the concrete surface under harsh weather.
Asked whether the bridge will once again deteriorate once the cracks and potholes are fixed, Trung said, “I have no idea. The entire transport sector in Vietnam has to surrender to this new technology.”
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