24-hour miracle: Chinese city transforms urban roads overnight

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At 9 a.m. on April 14, the key phase of an underpass renovation beneath the Guangda Railway was successfully completed. A 2,500-ton prefabricated frame bridge was installed using an advanced "prefabrication + jacking" method, precisely moved into place after 24 hours of continuous work.

The original culvert was replaced seamlessly, with railway operations resuming immediately after completion.

#Infrastructure #Engineering #China #Railway #Construction
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