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Construction of Asia’s largest marine interchange bridge kicks off

On July 27, the Ningbo Phase I project Binhai interchange section of Asia’s largest sea interchange bridge Hangzhou-Ningbo Expressway double line has officially started construction, according to Ningbo city traffic department,

Binhai Interchange is a sea interchange overpass connecting Hangzhou-Ningbo Expressway double line and Ningbo-Zhou Expressway, which adopts deformed clover leaf (single-ring type) interchange. It is composed of 1 main line interchange bridge and 8 ramp bridges. The total length of the main line is 1550 meters and the total length of the ramp is 6387 meters, which will become the largest sea interchange overpass in Asia after completion.

Hangzhou-Ningbo double line S3 contract section of the main project Binhai viaduct and sea interchanges construction difficulty, high technical requirements, the main line bridge and ramp bridge 4 times across the Jintang Bridge. In addition, the Binhai viaduct crosses natural gas pipeline, crude oil pipeline, power plant water intake shield tunnel, Zhoushan water supply pipeline, Zhoushan 500 kV submarine cable, drainage pipeline and other 17 submarine pipelines of national livelihood, with high safety

risk and complex construction organization. It is expected to be connected to the adjacent sections of the sea channel within three months.

The Hangzhou-Ningbo Expressway Duplication Line is an important link in the overall layout of “two longitudinal, two transverse, 18 links, three roundabouts and three channels”, which will greatly shorten the time and space distance between the south wing of the Yangtze River Delta and the cities in the northern region, and play an important role in improving the regional road network, helping to build a port economic circle and promoting regional economic and social developmen

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