The Dongting Lake Bridge () is a bridge with a

cable-stayed bridge A cable-stayed bridge has one or more ''towers'' (or ''pylons''), from which wire rope, cables support the bridge deck. A distinctive feature are the cables or wikt:stay#Etymology 3, stays, which run directly from the tower to the deck, norm ...

section over

Dongting Lake Dongting Lake () is a large, shallow lake in northeastern Hunan Province, China. It is a flood basin of the Yangtze River, so its volume depends on the season. The provinces of Hubei and Hunan are named after their location relative to the la ...

Yueyang Yueyang, formerly known as Yuezhou or Yochow, is a prefecture-level city on the eastern shores of Dongting Lake and the Yangtze river in the northeastern corner of Hunan Province in the People's Republic of China. Yueyang has an administrative ...

, northeastern

Hunan Province Hunan is an inland province in Central China. Located in the middle reaches of the Yangtze watershed, it borders the province-level divisions of Hubei to the north, Jiangxi to the east, Guangdong and Guangxi to the south, and Guizhou and Chon ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

. The cable-stayed section consists of three towers supporting center spans of 310m each, with two identical side spans of 130m each. The bridge is one of a handful of "next generation" bridges worldwide, and includes cable dampers that use

magnetorheological fluid A magnetorheological fluid (MR fluid, or MRF) is a type of smart fluid in a carrier fluid, usually a type of oil. When subjected to a magnetic field, the fluid greatly increases its apparent viscosity, to the point of becoming a viscoelastic ...

which have the capability to change

viscosity Viscosity is a measure of a fluid's rate-dependent drag (physics), resistance to a change in shape or to movement of its neighboring portions relative to one another. For liquids, it corresponds to the informal concept of ''thickness''; for e ...

in response to an

electromagnetic field An electromagnetic field (also EM field) is a physical field, varying in space and time, that represents the electric and magnetic influences generated by and acting upon electric charges. The field at any point in space and time can be regarde ...

. The bridge includes four lanes of traffic—two lanes in each direction.

Description

The Dongting Lake Bridge is connected to Dongting Avenue,

China National Highway 107 China's National Highway 107 runs from Beijing to Hong Kong SAR via Wuhan. It runs to approximately 2,698 km, and, on a map, runs broadly on a straight line from Beijing to Shenzhen. In 2013, under a new 2013-2030 plan by the National Dev ...

and Jingzhu Expressway in the east, and the Provincial Highway Route 1804 of Hunan in the west. The total length of the bridge and adjacent road is 18,868.82 meters, of which the bridge's length is 5,788.2 meters. The length of the bridge's cabling is 4,426 meters. Total investment in the construction of the Dongting Lake Bridge is 805 million yuan.Liu Xianhu
Yueyang Dongting Lake Bridge Construction Command
cnki.com. 2005-07-03. As of November 30, 2018, it is the longest inland river bridge in China, and the bridge spans the East Dongting Lake area.The 40th Anniversary of Reform and Opening up The Story Behind the Construction of Dongting Lake Bridge
Department of Transportation of Hunan Province. 2017-11-28.

History

Construction of the Dongting Lake Bridge was officially started on December 19, 1996. On December 26, 2000, the bridge was completed and opened to traffic.

References

{{Reflist Cable-stayed bridges in China Bridges completed in 2002 Bridges in Hunan 2002 establishments in China