Building Less at Sea: Rethinking How We Deliver Sustainable Pier Infrastructure

Hong Kong’s rural piers are vital links for local communities, providing access to transport, tourism opportunities and essential services in some of the city’s most remote coastal locations.

When infrastructure is renewed to meet future needs, sustainability must be considered not only in what we build, but also in how we build it. Construction in marine environments can be particularly challenging due to limited access, weather exposure and the need to minimise impacts on surrounding waters and coastal habitats.

For the improvement works at Leung Shuen Wan Pier, Sham Chung Pier and Sam Mun Tsai Village Pier, Mott MacDonald has adopted an approach that maximises the use of prefabricated concrete and structural steel elements. By shifting a significant proportion of construction activities away from the pier sites to controlled manufacturing environments, marine-based construction activities have been significantly reduced, improving site safety, requiring less labour, minimising waste and disruption to local communities.

Maximising offsite prefabrication will enhance project delivery efficiency by minimising reliance on weather-sensitive marine operations and reducing associated programme risks. It also helps maintain high standards of quality and resilience.

At Mott MacDonald, we work with our clients to develop practical and sustainable infrastructure solutions that balance engineering, environmental and community needs. Through innovative construction approaches, we create coastal infrastructure that supports communities today while contributing to a more sustainable future.

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