Qingdao Jiaozhou Bay tunnel

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Qingdao Jiaozhou Bay Tunnel
Jiaozhou Bay Bridge.png
Map of the Jiaozhou Bay Connection Project
LocationJiaozhou Bay
Coordinates36°01′46″N 120°17′00″E / 36.029388°N 120.283270°E / 36.029388; 120.283270Coordinates: 36°01′46″N 120°17′00″E / 36.029388°N 120.283270°E / 36.029388; 120.283270
StartHuangdao District
Work begunDecember 27, 2006
OpenedJuly 1, 2011
TollCN¥ 30 (passenger car)[1]
Length5.55 km (3.45 mi) underground[2]
No. of lanes6
Operating speed80 km/h (50 mph)[2]
Lowest elevation−70.5 m (−231 ft)[2]

Qingdao Jiaozhou Bay tunnel is an under-sea road tunnel located in Shandong Province in eastern People's Republic of China. It crosses underneath Jiaozhou Bay, connecting Huangdao to the south with the city of Qingdao in the north (see map), at the narrow entrance to the bay.[3] It starts at Tuandao Road in the north and ends between Beizhuang village and Houchawan village on Xuejia Island in the south.[2]

Construction began on December 27, 2006[4] and was completed five years later when it opened on July 1, 2011, two months after the scheduled opening date. It opened the same day as the nearby Jiaozhou Bay Bridge, considered at the time the world's longest open water bridge by Guinness World Records.[5][6] The bridge and tunnel were planned together as the Jiaozhou Bay Connection Project.[7]

The contiguous length of the tunnel road is about 7.8 km (4.8 mi), part of which is underground and part under the sea.[8] The sub-sea portion is 3.95 km (2.45 mi).[8] The deepest point of the crown of the tube to sea-level is 74 meters.[8] The deepest water depth is 42 meters.[8] There are two tubes of 3-lanes each for a total of 6-lanes.[8]


  1. ^ Clay (July 23, 2011). "Qingdao Photos: Tunnel". Retrieved 5 July 2012.
  2. ^ a b c d "Jiaozhou bay Tunnel in Qingdao". STEC. March 8, 2012. Retrieved July 5, 2012.[permanent dead link]
  3. ^ "Qingdao bridge sets world record". China Economic Net. 1 July 2011. Retrieved 1 July 2011.
  4. ^ "List".
  5. ^ Staff writers (30 June 2011). "A marathon span: China opens world's longest bridge over water". MSNBC. Retrieved 1 July 2011.
  6. ^ Xie Chuanjiao; Dai Yan (1 July 2011). "Qindao bridge sets world record". China Daily. Archived from the original on 2013-12-07. Retrieved 1 July 2011.
  7. ^ "Qingdao-Huangdao Jiaozhou Bay Tunnel".
  8. ^ a b c d e C. Y. Song; S. M. Zhou (2012). "The Overall Design of Qingdao Jiaozhou Bay Subsea Tunnel". Advanced Materials Research. 368-373: 2971–2976. Retrieved April 22, 2019.