Hong Kong - Tsing Sha Highway being part of Route 8, a section between Cheung Sha Wan and Sha Tin provides the fourth road link between Sha Tin and Kowloon, serving the increasing traffic demand between Northeast New Territories and West Kowloon.
A strategic flyover to reduce congestion
Arcadis was responsible for the design, contract management and site supervision of the “Lai Chi Kok Viaduct” section forming part of Tsing Sha Highway.
The Lai Chi Kok Viaduct is a 1.4-kilometre dual three lane viaduct designed to minimize the new highway’s impact on the existing residents below, and either side of the viaduct. Being constructed in a very congested urban area, it posed severe constraints from underground services, buildings, flyovers, roads and future developments.
To minimize conflict, the mainline was designed as a high-level viaduct with long spans, and transverse portal frames were also used at several locations. The balanced cantilever method reduced the occupation of ground space, and was used for erecting and assembling the bridge deck segments to minimise disturbance to grade traffic. Structural forms of the bridge deck and piers were also designed with landscaping to provide an aesthetically pleasing appearance.
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