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The Longest Tunnel in Hong Kong - Tate's Cairn Tunnel

The Tate’s Cairn Tunnel provided twin two-lane carriageway tunnels between Diamond Hill and Siu Lek Yuen. The construction of the tunnels commenced in July 1988 and was completed by June 1991.

The distances between portals, 3,913 metres northbound and 3,945 metres southbound made the Tate’s Cairn Tunnel the longest in Hong Kong.

  • Tate’s Cairn Tunnel
    Tate’s Cairn Tunnel

Currently, the average daily traffic carried by Tate's Cairn Tunnel is more than 59,000 vehicle trips.