Jiaozhou Bay Bridge
|Jiaozhou Bay Bridge|
|Locale||between Qingdao and Huangdao District, China|
|Design||Self-anchored suspension bridge and Cable-stayed bridge|
|Total length||26.707 kilometres (16.595 mi)|
|Width||35 m (115 ft)|
Cangkou Channel Bridge:|
260 m (850 ft)
|Clearance below||190 m × 40.5 m (623 ft × 133 ft)|
|Designer||Shandong Gaosu Group|
|Construction start||late 2007|
|Construction end||early 2011|
|Construction cost||CN¥10 to 55 billion |
|Opened||30 June 2011|
|Jiaozhou Bay Bridge|
|Literal meaning||Jiaozhou Bay Bridge|
Jiaozhou Bay Bridge (or Qingdao Haiwan Bridge) is a 26.7 km (16.6 mi) long roadway bridge in eastern China's Shandong province, which is part of the 41.58 km (25.84 mi) Jiaozhou Bay Connection Project. As of December 2012[update], Guinness World Records lists the Jiaozhou Bay Bridge as the world's longest bridge over water (aggregate length) at 41.58 km (25.84 mi). The longest continuous over-water segment of the bridge is 25.9 km (16.1 mi).
The Jiaozhou Bay Bridge transects Jiaozhou Bay, which reduces the road distance between Qingdao and Huangdao by 30 km (19 mi), compared with the expressway along the coast of the bay, reducing travel time by 20 to 30 minutes. The design of the bridge is T-shaped with the main entry and exit points in Huangdao and the Licang District of Qingdao. A branch to Hongdao Island is connected by a semi-directional T interchange to the main span. The construction used 450,000 tons of steel and 2.3 million cubic metres (81×106 cu ft) of concrete. The bridge is designed to be able to withstand severe earthquakes, typhoons, and collisions from ships. It is supported by 5,238 concrete piles. The cross section consists of two beams in total 35 m (115 ft) wide carrying six lanes with two shoulders.
The Jiaozhou Bay Bridge has three navigable sections: the Cangkou Channel Bridge to the west, the Dagu Channel Bridge to the east, and the Hongdao Channel Bridge to the north. The 600 metres (2,000 ft) long Cangkou Channel Bridge has the largest span of the entire Jiaozhou Bay Bridge, 260 m (850 ft). The Hongdao Channel Bridge has a span of 120 m (390 ft). The non-navigable sections of the bridge have a span of 60 m (200 ft).
The Jiaozhou Bay Bridge is part of the Jiaozhou Bay Connection Project, which includes overland expressways and the Qingdao Jiaozhou Bay tunnel. The aggregated length of the project is 41.58 km (25.84 mi), which is by many sources listed as length of the Jiaozhou Bay Bridge.
The Jiaozhou Bay Connection Project consists of two non-connected sections: a 35.4 km (22.0 mi)-long expressway that includes the Jiaozhou Bay Bridge and a 6.17 km (3.83 mi)-long expressway that includes the Qingdao Jiaozhou Bay Tunnel.
The 35.4 km (22.0 mi) section is further broken into multiple parts:
- 26.7 km (16.6 mi) - Jiaozhou Bay Bridge of which 25.9 km (16.1 mi) is over water in the aggregate of three legs.
- 5.85 km (3.64 mi) - Qingdao side land bridge
- 0.9 km (0.56 mi) - Huangdao side land bridge
- 1.9 km (1.2 mi) - Hongdao Island connection
Guinness World Records lists the Jiaozhou Bay Bridge at 41.58 km (25.84 mi), which makes it the longest bridge over water (aggregate length), and the Lake Pontchartrain Causeway is at 38.44 km (23.89 mi) the longest bridge over water (continuous length) (status July 2011[update]). The Guinness title will be challenged by the Hong Kong-Zhuhai-Macau Bridge, which is currently under construction and scheduled to be opened in 2018 with an aggregate 50.0 km (31.1 mi) of bridges and tunnels.
The bridge builder Shandong Gaosu Group claims that Jiaozhou Bay Bridge has the first oversea interchange in the world and that it has the world's largest number of oversea bored concrete piles.
The bridge was the idea of a local official in the Chinese Communist Party who was subsequently dismissed for corruption. It was designed by the Shandong Gaosu Group. It took four years to build, and employed at least 10,000 people. It opened on 30 June 2011 for traffic.
The Qingdao Jiaozhou Bay tunnel opened on the same day as the bridge. It transects Jiaozhou Bay, also connecting Huangdao District and the city of Qingdao, between the narrow mouth of the bay, which is 6.17 km (3.83 mi) wide. The tunnel travels underground for 5.55 km (3.45 mi).
Concerns regarding the bridge's safety were raised when Chinese media reported that the bridge was opened with faulty elements, such as incomplete crash-barriers, missing lighting, and loose nuts on guard-rails, with workers stating that it would take two months before finishing all of the projects related to the bridge. Shao Xinpeng, the bridge's chief engineer, claimed that in spite of the safety report, the bridge was safe and ready for traffic, adding that the problems highlighted in the reports were not major.
The bridge was reported by the official state-run television company CCTV to cost CN¥10 billion (US$1.5 billion, GB£900 million). Other sources reported costs as high as CN¥55 billion (US$8.8 billion, GB£5.5 billion).
|Wikimedia Commons has media related to Qingdao Haiwan Bridge.|
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