The Longest Tunnel in Hong Kong - Tuen Mun–Chek Lap Kok Tunnel
The Tuen Mun–Chek Lap Kok Tunnel consists of two two-lane sub-sea road tunnels connecting Pillar Point in Tuen Mun South and the Hong Kong–Zhuhai–Macao Bridge Hong Kong Port. The construction of the tunnels commenced in August 2013 and was completed in December 2020.
The distances between portals, 5,465 metres northbound and 5,485 metres southbound made the Tuen Mun–Chek Lap Kok Tunnel the longest in Hong Kong.
Tuen Mun–Chek Lap Kok Tunnel