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Cross-Harbour Tunnel

The Cross-Harbour Tunnel (abbreviated CHT or XHT) is the first tunnel in Hong Kong built underwater. It consists of two steel road tunnels each with two lanes constructed using the single shell immersed tube method.[1]

Cross-Harbour Tunnel
Cross Harbour Tunnel (1).JPG
Entrance to the tunnel in Hung Hom, Kowloon Route 1 and Route 4
LocationBeneath Victoria Harbour, between Hung Hom and Causeway Bay
Coordinates22°17′29″N 114°10′56″E / 22.29139°N 114.18222°E / 22.29139; 114.18222 (Cross-Harbour Tunnel)
SystemPart of Route 1 HK Route1.svg
StartHung Hom, Kowloon
(between Hong Chong Road and Salisbury Road)
EndNorthern Causeway Bay, Hong Kong Island
(Canal Road Flyover)
Opened2 August 1972
OwnerHong Kong Government
OperatorSerco Group (HK) Ltd
Vehicles per day116,754
Length1.86 kilometres (1.16 mi)
No. of lanes4 lanes (2 lanes per direction)
Operating speed70 kilometres per hour (43 mph) (within tunnel)
50 kilometres per hour (31 mph) (exit and entrance to tunnel)
Cross-Harbour Tunnel
HK CrossHarbourTunnelNight 20070930.jpg
Toll plaza of the Cross Harbour Tunnel in Hung Hom, Kowloon
JyutpingHoi2dai2 Seoi6dou6
Literal meaningSeabed tunnel
Alternative Chinese name
Traditional Chinese紅磡海底隧道
Simplified Chinese红磡海底隧道
JyutpingHung4ham3 Hoi2dai2 Seoi6dou6
Literal meaningHung Hom seabed tunnel

It is the earliest of three vehicular harbour crossings in Hong Kong, opened for traffic on 2 August 1972. It was constructed under a 30-year private-sector franchise based on a build–operate–transfer model, and the title passed to the Hong Kong government in August 1999 upon termination of the franchise. It has become one of the most congested roads (mainly towards the Hong Kong Island direction) in Hong Kong and the world, with 116,753 vehicles passing through it daily in 2013.[2]


The Hong Kong government used the operator model "Build Operate Transfer", or "BOT", for the implementation of the tunnel project; Financing and construction was the responsibility of a private enterprise, which was granted a concession to operate and collect tolls for 30 years. The concession was given to the then Cross-Harbour Tunnel Company Limited (Chinese: 香港隧道有限公司), today the Cross-Harbour Holdings Limited (港通控股有限公司), which was founded in 1965 to carry out the tunnel project. The Hong Kong government participated to 20% in order not to fully hand over their influence on the project. The tunnel was designed with two lanes for each direction of travel for a capacity of 80,000 vehicles. The project was structurally managed jointly by the British engineering firms Scott Wilson Kirkpatrick & Partners and Freeman Fox & Partners. The tunnel links the main financial and commercial districts on both sides of Victoria Harbour, connecting Kellett Island (a former island now connected to Hong Kong Island by reclamation), with a reclaimed site at Hung Hom Bay, Kowloon. The toll plaza is located at the Hung Hom end of the tunnel, and has 14 toll booths. It provides the first road link between Kowloon and Hong Kong Island. Prior to the opening of the tunnel, cross-harbour vehicular traffic depended on ferries and for passengers, the Star Ferry. The project was joint-engineered by Scott Wilson Kirkpatrick & Partners and Freeman Fox & Partners [3]

Construction began in September 1969 and was to last four years. The concession period already ran from the start of construction, so that the operator carried out the construction one year faster than planned. On 2 August 1972, the tunnel was opened for traffic and cost 5 HK $ per car for transit. After just three and a half years of operation, the operator had re-recorded the construction costs.

In 1984, the Hong Kong government introduced a tax in addition to the operator's toll to make the overcrowded tunnel less priced. The price for a car transit was now 10 HK $.

In 1993, an electronic toll collection system was installed. Together with measures to control the flow of traffic, the vehicle capacity could be increased.

It was administered by The Cross-Harbour Tunnel Company Ltd until August 1999, when the operation franchise agreement expired and the government assumed control. Since 1 November 2010, the tunnel is managed, operated and maintained by Serco on contract basis.[4]

The 2017 Hong Kong action film Shock Wave, starring Andy Lau, set its main plot in the tunnel.


Initial (1972) from 1984 from 1992 from 1999
Private car $5 $10 $10 $20
Taxi $5 $10 $10 $10
Light goods vehicle (LGV) $10 $15 $15 $15
Heavy goods vehicle (HGV) $20 $25 $30 $30
source: Consultancy report[5]

The tunnel generates approximately HK$700 million in annual toll revenue.[4]


As of 2018, there are 44 bus routes passing through the tunnel.

See alsoEdit


  1. ^ The Hong Kong Cross-Harbour tunnel (Figure 11-3 and Figure 11-12). Technical Manual for Design and Construction of Road Tunnels – Civil Elements Chapter 11 – Immersed Tunnels. United States Department of Transportation – Federal Highway Administration. Updated: 4 May 2011. Accessed 2013-01-18.
  2. ^ "Drivers facing three more years of jams in Cross-Harbour Tunnel". South China Morning Post. 19 February 2014. Retrieved 28 August 2014.
  3. ^
  4. ^ a b "Transport–Cross-Harbour Tunnel"[permanent dead link]
  5. ^ "Consultancy Study on Rationalising the Utilisation of Road Harbour Crossings". Wilbur Smith Associates Limited, November 2010

External linksEdit

Preceded by
Canal Road Flyover
Hong Kong Route 1
Cross-Harbour Tunnel
Succeeded by
Hong Chong Road