One of the most important environmental programmes undertaken in Hong Kong to improve the water quality of Victoria Harbour, the notion of this project is loud and simple – “Our effort is made to achieve a cleaner harbour for the future of Hong Kong.”
The project works include construction of 21-kilometres of deep sewage tunnels covering the following areas in Hong Kong from:
The tunnels are at a maximum depth of 160 metres below sea level. Works also include associated production shafts, drop shafts, ancillary civil and Electrical and Mechanical (E&M) works. Control over groundwater ingress during tunnelling at such great depths and preventing building settlement are great challenges for this project.
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