| Overview | |
|---|---|
| Location | Hong Kong |
| Coordinates | 22°21′50″N 114°12′43″E / 22.3640°N 114.2119°E |
| Route | Route 2  |
| Start | Diamond Hill, New Kowloon |
| End | Siu Lek Yuen, Sha Tin, New Territories |
| Operation | |
| Work begun | July 1988 |
| Opened | 26 June 1991 |
| Owner | Hong Kong Government |
| Traffic | Vehicular |
| Toll | Yes |
| Technical | |
| Length | 3,913 metres (12,838 ft) – Northbound 3,945 metres (12,943 ft) – Southbound |
| No. of lanes | 4 (2 per direction) |
| Operating speed | 70 km/h (45 mph) |
| Tate's Cairn Tunnel | |||||||||||
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 Tate's Cairn Tunnel | |||||||||||
| Chinese | 大老山隧道 | ||||||||||
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Tate's Cairn Tunnel is a four-lane road tunnel in Hong Kong. Constructed as part of Route 2, it links Diamond Hill, New Kowloon with Siu Lek Yuen, Sha Tin, New Territories East. It opened on 26 June 1991.
Its toll plaza is situated on the Sha Tin side, leading to Tate's Cairn Highway, Sha Lek Highway and various local roads. The tunnel joins the Kwun Tong Bypass and is connected with Lung Cheung Road and Hammer Hill Road and several local roads on the Kowloon side.
Tate's Cairn Tunnel is the third longest road tunnel in the New Territories and in Hong Kong, and the second longest over land, with the northbound tube having a length of 3,913 metres (2.43 miles) and southbound tube having a length of 3,945 metres (2.45 miles), after Tuen Mun–Chek Lap Kok Tunnel (at 3.1 miles (4.99 km)) and Lung Shan Tunnel (3 miles (4.83 km)) – It was the longest when it opened.