Resilient cities need robust infrastructure in response to inner-city flood risks due to climate change.聽As an integral component of Hong Kong鈥檚 urban flood prevention master plan, the Lai Chi Kok聽Drainage Tunnel is part of the overall flood control strategy for West Kowloon.
The Lai Chi Kok Drainage Tunnel (LCKDT) project reinforces the flood protection capability in聽Northwest Kowloon, Hong Kong. The contract began on site in 2008 and included the building of a聽1.2-kilometer (0.75-miles) main branch, a 2.5-kilometer (1.55-miles) branch tunnel, six intakes, a聽stilling basin and an outfall.
色控传媒 was responsible for detailed design, preparation of聽prequalification and tender documents, construction supervision, and contract management for the聽project.
Designed to withstand rainstorms with a return period of one in 50 years, the LCKDT project is one聽of the major strategic flood prevention schemes for the region implemented by the Drainage聽Services Department of the Government of Hong Kong Special Administrative Region. The new聽tunnel lessens the burden on existing urban area drainage systems by first intercepting surface聽runoff from the rural upstream catchment via a number of intakes to a branch tunnel. The flow then聽bypasses busiest residential districts of Sham Shui Po, Cheung Sha Wan and Lai Chi Kok, through聽hard rock and mixed ground conditions, and running close to existing water mains and sensitive聽structures a main tunnel about 45 meters (147 feet) below ground and is finally discharged to聽Victoria Harbour through a riser outfall.
As a key component of and jointly with other components of Hong Kong鈥檚 urban flood control聽drainage system, the project is collectively recognized by the 12th Jeme Tien Yow Award, China鈥檚聽highest recognition of engineering excellence, in 2014.