North Lantau Expressway
The North Lantau Expressway is a 12.5 km long dual three-lane expressway with a driving speed limit of 100 km/h connecting the urban areas of west Kowloon to the new Chek Lap Kok Airport. The expressway takes the form of a linear structure along the northern coast of the Lantau Island building partially upon cutting slopes and partially on reclaimed land at the toe of hillsides. The construction involved extensive land excavation of 6.3M cu m soil and rock and the removal of 10M cu m dredged material from sea bed with the filling of 14 M cu m imported marine sand and 4M cu m seawall rock to form the roadwork. This is the first super highway on the island.
Location of North Lantau Expressway
Pitcher plants transplanted away from construction site
During site clearance of a slope in Tung Chung, pitcher plants (Nepenthes mirabilis), a protected species, were observed by the resident environmental staff on his routine site inspection. Through our liaison meetings with concerned parties, the pitcher plants were rescued and transplanted away from damage.
Water quality was monitored regularly together with frequent site inspections, wetland habitats are protected.
Tai Ho Wan, is an inlet of the seashore where the expressway makes it way through by forming an embankment between the headlands engulfing the bay. In order to assure the healthy growth of the mangrove and the maintenance of the wetland habitat, additional water quality stations were set up together with routine site inspections by resident environmental staff to prevent any disturbance due to the construction.
Silt curtain is an effective measure to suppress dispersion of local water of poor quality
As stipulated in the environmental protection requirements of the construction contract, the contractor was advised to install silt curtain in order to limit the dispersion of polluted water from piling for the construction of road bridge at Yam O.
Retention tank installed to treat polluted water from piling activities.
Monitoring data on water quality showing breaches of pre-set levels at a bridge piling site in Tung Chung Channel, it then triggered the installation of water retention tank to settle polluted water before discharging, preventing any further damage to the water body.
(a) Environmental Project Office (ENPO) in West Kowloon Project Area
(b) Lantau Fixed Crossing
(d) Construction Noise
