Singapore’s Coastal Protection Initiatives: Greater Southern Waterfront and Changi Prepared for Rising Sea Levels

The National Water Agency, PUB, is leading significant efforts to protect Singapore’s low-lying areas, particularly the Greater Southern Waterfront and Changi, from the looming threat of rising sea levels. Exciting proposals were revealed during a recent exhibition that laid out a comprehensive plan for coastal protection in these vulnerable regions.

Key Measures for Coastal Defence

  • Coastal Barriers: Three coastal barriers will link eastern Sentosa to Pulau Brani and the mainland. Another will connect western Sentosa to mainland Singapore.
  • Infrastructure Upgrades: Existing structures, including revetments at Marina South and retrofitting of Marina Barrage, will be enhanced to withstand future sea level rises.
  • Changi’s Protection: Measures will include bunds, revetments, and tidal gates, ensuring that recreational access remains uncompromised.

Long-Term Planning

The detailed coastal protection study, valued at S$18 million, commenced in 2021 and aims to establish a continuous line of defence against flooding in the City-East Coast region. The construction of these measures is slated to begin in the 2030s, with careful consideration of environmental impact and stakeholder feedback.

PUB’s Commitment

During the inaugural Coastal Protection Exhibition at VivoCity, Deputy Prime Minister Gan Kim Yong discussed the importance of this initiative, highlighting Singapore’s unique geographical challenges. He stated, “Unlike larger countries, Singapore does not have the option of ‘retreating’ inland. Protecting our coastlines is therefore of existential importance.”

A Sustainable Future

The coastal protection measures also complement existing efforts across East Coast, ensuring a robust response to the dangers posed by climate change. Singapore could see a permanent mean sea level rise of up to 1.15 metres by 2100, which makes these initiatives critical.

PUB is expected to roll out further studies and introduce a Coastal Protection Bill in late 2024 to enforce compliance with protection standards. The proactive approach underscores the government’s commitment to safeguarding the nation’s coastal areas.