What is the longest bridge in China and where is it? How many meters are there?

The longest bridge built is Runyang Yangtze River Bridge.

Runyang Bridge is the first bridge composed of a cable-stayed bridge and a suspension bridge on the Yangtze River, and it is the perfect combination of Jiangyin Yangtze River Bridge and Nanjing Second Yangtze River Bridge. Its south branch bridge is a single-hole double-hinged steel box girder suspension bridge, with a span of 1.490 m, which is the largest suspension bridge in China and the third in the world at present.

In the past, Yangzhou to Zhenjiang mainly passed through the middle ferry, and it took more than 20 minutes to take the ferry from Jingkou to Guazhou. For the first time, the reporter drove on the Runyang Bridge, which runs through the whole line. According to the speed of 100 km per hour, it took less than 5 minutes to cross the river. Runyang Bridge spans the Yangtze River, turning the natural moat into a thoroughfare. It is an important project in the main framework of "four vertical, four horizontal and four cross roads" and five national highways crossing the river planned by our province. The bridge is located about 2 kilometers upstream of Zhenyang Automobile Ferry, with a total length of 35.66 kilometers. For a two-way six-lane highway bridge, the design speed is100km. It starts from Yangzhou South Ring Road in the north and is connected with Beijing-Shanghai Expressway and Tong Ning Expressway. It is connected to National Highway 3 12, Shanghai-Nanjing Expressway and Nanjing-Hangzhou Expressway in the south. In the past, the car ferry in Zhenyang often stopped because of foggy weather, which led to the queue waiting to pass five kilometers away; Moreover, in the past, it took nearly an hour to get on the Shanghai-Nanjing Expressway and just over 20 minutes to cross the Runyang Bridge.

The longest bridge under construction is Hangzhou Bay Bridge.

Hangzhou Bay Bridge is the longest sea-crossing bridge rebuilt in the world at present. Located in the Yangtze River Delta, the Bridge is the most dynamic and economically developed area in China. The project started construction in an all-round way at the end of 2003, and is expected to be completed by the end of 2008 and open to traffic in 2009.

The construction of Hangzhou Bay Bridge is of far-reaching strategic significance to the economic and social development of Hangzhou Bay. The bridge is a convenient passage for the national trunk line to cross Hangzhou Bay on the same third line, starting from Zheng Jiali, Haiyan and Jiaxing in the north, crossing the wide sea area of Hangzhou Bay and ending at Shuilu Bay in Cixi, Ningbo, with a total length of 36 kilometers. After the completion of Hangzhou Bay Bridge, the land distance between Ningbo and Shanghai will be shortened by more than120km.