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Oujiang Beikou Bridge

Oujiang Beikou Bridge

瓯江北口大桥
Coordinates27°58′48.94″N 120°55′45.81″E / 27.9802611°N 120.9293917°E / 27.9802611; 120.9293917
CarriesUpper level: G1523 Ningbo–Dongguan Expressway
Lower level: China National Highway 228
CrossesOu River
LocaleYueqing and Dongtou District
Wenzhou, Zhejiang, China
Characteristics
DesignSuspension bridge
MaterialSteel / concrete
Total length7.9 kilometres (4.9 mi)
WidthUpper level: 33.5 metres (110 ft)
Lower level: 33 metres (108 ft)
Height151 metres (495 ft)
Longest span800 metres (2,600 ft)
No. of spans4
Clearance below53.5 metres (176 ft)
No. of lanesUpper level: 6
Lower level: 6
History
Construction start30 November 2016
Construction costRMB 8.836 billion
OpenedUpper level: 27 May 2022
Lower level: 31 August 2022
Location
Map

Oujiang Beikou Bridge (Chinese: 瓯江北口大桥) is a suspension bridge between Yueqing and Dongtou District, Wenzhou City, in Zhejiang Province, China. It is an important part of the Yongguan Expressway and China National Highway 228. It is the world's first three-tower four-span double-decked steel truss suspension bridge. The construction cost was 8.836 billion yuan (2022: ~ US$1.32 billion), and construction started on 30 November 2016.[1] The main bridge was finished on 30 December 2021,[2] and the upper floor was opened to traffic on 27 May 2022[3][4]，lower floor was opened to traffic on 31 August 2022.[5][6]

Design

Due to the height limit of the nearby Wenzhou Longwan International Airport, the bridge tower could not be built too high, and if the bridge tower was built too low, it would affect the Ou River, so it was designed as the world's first three-tower four-span suspension bridge. The total length of the project is 7.9 kilometres (4.9 mi). The main bridge is arranged as a span of 215 meters (705 ft), plus the main span of 2 × 800 metres (2,600 ft), plus 275 metres (902 ft). The width of the upper deck is 33.5 metres (110 ft) and the width of the lower deck is 33 metres (108 ft). The headroom under the bridge is 53.5 metres (176 ft) and the bridge height is 151 metres (495 ft). The upper level is a two-way six-lane expressway, and the lower level is a two-way six-lane first-class highway.[1][7][8]

See also

References

  1. ^ a b "The main construction of the Oujiang Beikou Bridge starts, and the civil works of the whole line start after the Spring Festival". news.66wz.com (in Chinese). Archived from the original on 2019-01-25. Retrieved 2019-09-21.
  2. ^ "[Zhejiang] Beikou Intelligent Manufacturing Flying Over the Oujiang River, Wenzhou Oujiang Beikou Bridge Main Bridge". www.zgjtb.com (in Chinese). Archived from the original on 2021-12-30. Retrieved 2021-12-30.
  3. ^ "The Oujiang Beikou Bridge is planned to open to traffic today". news.66wz.com (in Chinese). Archived from the original on 2022-05-27. Retrieved 2022-05-27.
  4. ^ "Wenzhou Oujiang Beikou Bridge officially opened to traffic, only 15 minutes from Yueqing city to Wenzhou Airport". news.66wz.com (in Chinese). Archived from the original on 2022-05-27. Retrieved 2022-05-27.
  5. ^ "这条乐清湾滨海大道通车 到龙湾国际机场的距离缩短30公里-新闻中心-温州网". news.66wz.com. Retrieved 2022-09-01.
  6. ^ ""桥"见双层"飞虹"！瓯江北口大桥上下双层全部通行-新闻中心-温州网". news.66wz.com. Retrieved 2022-11-03.
  7. ^ Dai Xianrong, Wang Changjiang, Wang Xiaoyang, Wan Tianbao (2019). "Overall Design and Structural Selection of Main Bridge of Oujiang Beikou Bridge in Wenzhou". Bridge Construction (in Chinese). 49 (3): 81. ISSN 1003-4722.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  8. ^ Zheng Fengli, Gu Zhimin (2018). "Erosion protection technology of middle tower caisson of Oujiang Beikou Bridge in Wenzhou". Bridge Construction (in Chinese). 48 (1): 107. ISSN 1003-4722.
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