What is the longest preserved bridge in our country?

As of February 24, 2020, the Danquint Bridge is the longest bridge in China and the longest bridge in the world. The Beijing-Shanghai high-speed railway Danyang to Kunshan section of the extra-large railway bridge, the world's longest bridge kilometers, it takes 2 hours to drive through, with a total investment of 30 billion.

Composed of more than 4,500 900 tons of box girders, the first pile began to be poured on April 7, 2008, the bridge was erected on May 24, 2009, and the track laying work was completed on November 6, 2010, with more than 10,000 people paying for 3 years, and it was officially opened for operation with the whole line on June 30, 2011.

Dankunte BAI Bridge is located in the Jiangsu section of the Beijing-Shanghai high-tech railway, starting from Danyang Zhi, passing through Changzhou, Wuxi, and DAO

Suzhou version, finally to Kunshan. The total length of kilometers is more than four times that of the world's longest bridge, the Lake Pontchartrain Bridge in the United States, which is currently recorded in the Guinness Book of World Records.

Due to geological reasons and for the sake of saving land, the bridge is all viaducted. The southern Jiangsu area that the bridge runs through belongs to the plain river network landform, and there are more than 150 rivers with a water surface width of more than 20 meters. Due to its location in an economically developed area and the vertical and horizontal road network, the bridge needs to cross more than 180 roads of various types.

Across highways, railways, and waterways, the Dankunte Bridge spans the entire land of southern Jiangsu with the proud attitude of a modern high-speed railway bridge.

Hong Kong-Zhuhai-Macao Bridge.

The full length of the main project.

English name: Hong Kong-Zhuhai-Macao Bridge[1]) is a bridge and tunnel project connecting Hong Kong, Zhuhai and Macao in China, located in the Lingding Ocean area of the Pearl River Estuary in Guangdong Province, China, and is the southern ring section of the Pearl River Delta Ring Expressway. [2]

The construction of the Hong Kong-Zhuhai-Macao Bridge commenced on December 15, 2009; [3] On July 7, 2017, the main project was completed in its entirety; [4] The acceptance of the main project was completed on February 6, 2018; [5] It opened at 9 a.m. on October 24 of the same year. [6]

The Hong Kong-Zhuhai-Macao Bridge starts from the Hong Kong Port Artificial Island near the Hong Kong International Airport in the east, crosses the Lingding Ocean waters in the South China Sea to connect the artificial islands of Zhuhai and Macao to the west, and ends at the Hongwan Interchange in Zhuhai. The total length of the bridge and tunnel is 55 kilometers, including the main bridge kilometer, the Hong Kong port and the Zhuhai-Macao port kilometer; The bridge deck is a two-way six-lane highway with a design speed of 100 kilometers per hour; [2] The total investment of the project is 126.9 billion yuan. [7]

The Hong Kong-Zhuhai-Macao Bridge is world-renowned for its large construction scale, unprecedented construction difficulty and top-notch construction technology,[8] the chief designer of the bridge project is Meng Fanchao,[9] the chief engineer is Su Quanke,[10] the general manager and chief engineer of the island tunnel project is Lin Ming [11].

Starting from 1 December 2018, the first batch of non-operating cars from Guangdong and Macao will be able to travel through the cross-border section of the Hong Kong-Zhuhai-Macao Bridge without additional visas[12]. On February 16, 2020, the Hong Kong-Zhuhai-Macao Bridge Authority announced that from the 17th, all vehicles passing on the Hong Kong-Zhuhai-Macao Bridge will be exempted from tolls until the end of the prevention and control of the novel coronavirus pneumonia epidemic, and the specific deadline will be announced separately [13]. Starting from 5 April 2020, Hong Kong and Macao will adjust the service hours of customs clearance at their respective ports of entry on the Hong Kong-Zhuhai-Macao Bridge[14].

From 3 May 2020, the original customs clearance hours of the Zhuhai-Macao Passenger Inspection Hall at the border gates between Macao and Zhuhai and the Zhuhai-Macao Passenger Inspection Hall at the Hong Kong-Zhuhai-Macao Bridge Port will be restored[15]. On August 16, 2020, the Zhuhai-Macao Freight Corridor at the Hong Kong-Zhuhai-Macao Bridge Port was officially opened [16].

Since June 2011, Qingdao Jiaozhou Bay Bridge has been the longest bridge in China and the world! It starts from the main urban area of Qingdao Haier Road through Hongdao to Huangdao, the bridge is a total length of 10 kilometers, an investment of 10 billion, lasted 4 years, the total length exceeds China's Hangzhou Bay Bridge and the United States Chesapeake Bridge, is the longest sea-crossing bridge in the world today. The bridge was fully opened to traffic on June 30, 2011.

Hangzhou Bay Bridge was started on November 14, 2003, after 43 months of construction, on June 26, 2007, the bridge was officially opened to traffic at 11:58 p.m. on May 1, 2008, with a total length of 36 kilometers. The Hangzhou Bay Bridge was the longest bridge in China until June 30, 2011, but it is not now).

A bridge or bridge is a structure built over a canyon, valley, road, railway, river, other body of water, or other obstacles.

Bridges can be divided into highway bridges, pedestrian bridges, railway bridges, canal bridges, sea-crossing bridges, etc.

Qingdao Jiaozhou Bay Bridge is "China's longest bridge" This statement is one-sided, Qingdao Jiaozhou Bay Bridge is at best China's longest sea-crossing bridge, and China's longest bridge is Dankunt Bridge, which is a kilometer-long viaduct in the Jiangsu section of the Beijing-Shanghai high-speed railway, from Kunshan City in Suzhou in the east to Danyang City in Zhenjiang in the west. It is four times the length of the Jiaozhou Bay Bridge in Qingdao.

Top 8 bridges in China in terms of length (as of 2012) name: nature, length, geographical location.

Dankunt Bridge (Beijing-Shanghai high-speed railway) 164,800 m (540,700 ft) in Jiangsu Province, China.

Tianjin Bridge (Beijing-Shanghai High-Speed Railway) 123,088 m (403,832 ft) Tianjin, China.

Cangdete Bridge (Beijing-Shanghai High-Speed Railway) 105,881 m (347,379 ft) Shandong Province, Hebei Province, China.

Weinan Weihe Bridge (Zhengxi High-Speed Railway) 79,732 m (261,588 ft) Weinan City, Shaanxi Province, China.

Zhangzhuang Zhanghe Bridge (Shiwu High-Speed Railway) 57,640 m (189,110 ft) Henan Province, Hebei Province, China.

Yongding River Bridge (Beijing-Shizhou High-Speed Railway) 51,890 m (170,240 ft) Hebei Province, China.

Beijing Bridge (Beijing-Shanghai High-Speed Railway) 48,153 m (157,982 ft) Beijing, China.

Qingdao Jiaozhou Bay Bridge 41,580 m (136,420 ft) Qingdao, Shandong Province, China.

The Hangzhou Bay Bridge, the longest bridge in China and the longest sea-crossing bridge in the world, was put into traffic on May 1, 2008. The Hangzhou Bay Bridge starts from Haiyan Zhengjiadai in Jiaxing City in the north, crosses the flare-shaped Hangzhou Bay, and ends at Cixi Waterway Bay in Ningbo City, with a total length of 36 kilometers, two-way six lanes, and a design speed of 100 kilometers per hour.

However, this is also a time to define, maybe in the near future, there will be the longest bridge in China, maybe it will not be this bridge!

The longest bridge in China: Qingdao Bay Bridge (length: 42 km).

No one has measured the length of the bridge so far.

The longest bridge in China at present——

Qingdao Bay Bridge, also known as Qingdao Jiaozhou Bay Bridge.

The total length of kilometers is longer than that of the Hangzhou Bay Bridge.

Jiaozhou Bay Bridge is located in Qingdao City, Shandong Province, China, as a highway bridge across Jiaozhou Bay and connecting to Qinglan Expressway, with a total length of kilometers, it is the longest sea-crossing bridge that has been built in the world, and is kilometers longer than the previous "champion" Hangzhou Bay Bridge. Connecting Qingdao, Huangdao and Hongdao "three poles", it is planned to add Jiaozhou liaison line in the later stage.

The newest bridge on the Yangtze River, called the Runyang Yangtze River Bridge, is a kilometer long.

The sea-crossing bridge is currently the longest sea-crossing bridge in Hangzhou Bay, Zhejiang, and the longest in the world.

The longest bridge in China is currently the Qingdao Bay Bridge, also known as the Qingdao Jiaozhou Bay Bridge.

Qingdao Bay Bridge again.

Jiaozhou Bay Bridge, located in Qingdao City, Shandong Province, is a large sea-crossing bridge designed, constructed and built by China.

Qingdao Bay Bridge is the starting point of the national highway network G22 Qinglan Expressway, is an integral part of the "five vertical, four horizontal and one ring" highway network framework in Shandong Province, and is the "one bridge" in the "one road, one bridge and one tunnel" of the cross-sea passage on the east and west banks of Jiaozhou Bay planned by Qingdao City.

The bridge starts from Haier Road, the main urban area of Qingdao, through Hongdao to Huangdao, the bridge is a total length of kilometers, with an investment of nearly 10 billion yuan, and it took 4 years to complete. The bridge was fully opened to traffic on June 30, 2011.

Qingdao Bay Bridge, east from the entrance of Yangjiaqun, Heilongjiang Road, the main urban area of Qingdao, across the sea area of Jiaozhou Bay, west to Huangdao Red Stone Cliff, (the first phase of the project) The total length of the route is 12 kilometers (12 kilometers of the second phase of the project). Among them, the length of the sea section is 749 meters, the Huangdao side line is 827 meters, and the Hongdao connection line is kilometers long. The estimated investment of the project is 100 million yuan.

The entire bay bridge project includes Cangkou, Hongdao and Dagu River channel bridges, marine non-navigable hole bridges and road approach bridges, Huangdao cross-strait connection project and Hongdao connection line project, Licun River interchange, Hongdao interchange and Qingdao, Hongdao and Huangdao three main line toll stations and management facilities.

The longest bridge in China, including bridges across the sea, across canyons, and of course land, so the longest bridge in China is the Danjin Kunte Bridge, with a total length of about 168 kilometers, starting from Danyang, Zhenjiang, Jiangsu Province in the west, passing through Jintan, Changzhou, Jiangyin, Changshu, Suzhou, and ending in Kunshan! The whole journey crosses the complex Jiangnan water system in the land of fish and rice in the south of China

The Jiaozhou Bay Bridge is not only the longest bridge in China, but also the longest sea-crossing bridge in the world. After the completion of the Hong Kong-Zhuhai-Macao Bridge, it should be surpassed. If it's a land bridge, that's another story.

Zhaozhou Bridge, also known as "Anji Bridge", commonly known as "Big Stone Bridge", is located on the Huhe River in the south of Zhao County, Shijiazhuang, Hebei Province, only 45 kilometers away from Shijiazhuang City, and is a national key cultural relics protection unit.

Zhaozhou Bridge was built in the period of Sui Daye (605-618 AD), has a history of 1400 years, was built by Li Chun, an outstanding craftsman of the Sui Dynasty, and is also the first single-hole open-shoulder stone arch bridge in the history of the world. The bridge is meters long and wide, with a single-hole span of meters, and the bridge deck is about 10 meters wide, and is paved with stones about 30 centimeters thick. On the stone arch at both ends of the bridge, each has 2 coupon holes, and the structural form of this bridge is called "open shoulder arch", which is an example in the history of civil engineering bridges in China and the world.

This open-shouldered design not only reduces the resistance of the water flow, but also reduces the weight of the bridge, and can also save the materials used to build the bridge. The railings and pillars on both sides of the bridge are all fine carvings of the Sui Dynasty. The bridge deck is flanked by stone railings carved with elaborate patterns

Some are carved with two intertwined dragons with beautiful splashes of water from their mouths; Some are engraved with two flying dragons, their front paws against each other, each looking back into the distance; Some are engraved with double dragon play beads. The image is vivid and realistic, reflecting the high artistic value of carving. Zhaozhou Bridge integrates technology and art, attracting literati from all dynasties to inscribe songs, and winning the reputation of "thousands of cars and horses, Qiankun this bridge".

According to records, the Zhaozhou Bridge has been repaired 8 times since its completion. Since the construction of the Zhaozhou Bridge has experienced 10 floods, 8 wars and many times, the flood in 1963 flooded the dragon mouth of the bridge arch, according to the local elders, standing on the bridge can feel the bridge body shake greatly. Especially in 1966, Xingtai occurred in the grade **, Xingtai is more than 40 kilometers away from here, and there are also 4 points here **, Zhaozhou Bridge has not been damaged, proving that the design of the bridge has good seismic performance.

Mao Yisheng, a well-known bridge expert in China, said: "Regardless of the internal structure of the bridge, the fact that it has existed for more than 1,300 years speaks for itself. ”

In September 1991, Zhaozhou Bridge was selected by the American Society of Civil Engineers as the 12th "International Civil Engineering Milestone", and the bronze monument of "International Civil Engineering Historical Monument" was built on the east side of the north end of the bridge.