NDR 2026: Singapore studying feasibility of undersea tunnels to connect Tekong to mainland

Singapore is investigating the feasibility of building an undersea tunnel to link Pulau Tekong with the mainland, a significant infrastructure project that Prime Minister Lawrence Wong highlighted during the 2026 National Day Rally.

Currently, Pulau Tekong, a key site for Singapore Armed Forces (SAF) recruit training, is accessible only by boat. An undersea tunnel would streamline this journey for recruits. Wong noted that such a tunnel would bypass Singapore's congested shipping lanes, a challenge that would preclude the construction of bridges. "We have experience building underground road tunnels, but we have never built undersea tunnels of this scale," Wong stated, emphasizing the project's ambitious nature. "But if we can do it, it will bring our outer islands much closer to the rest of Singapore."

The study aligns with Singapore's long-term vision for developing its outlying islands. Plans are underway for the transformation of Sentosa and Pulau Brani, incorporating new attractions and improved connectivity. Additionally, a second road link to Jurong Island is planned, alongside a new connection to a future western island. These developments aim to enhance accessibility and integrate these areas more closely with the mainland.

Tekong itself is slated for further development, with land reclamation planned for its southern part to expand SAF training grounds. A substantial portion of this reclaimed land, approximately 500 hectares, is earmarked for future civilian use after military needs are met, though specific plans for this area are yet to be decided. The potential undersea tunnel represents a major engineering challenge but could fundamentally alter the accessibility and integration of Singapore's outer islands.

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We have experience building underground road tunnels, but we have never built undersea tunnels of this scale. But if we can do it, it will bring our outer islands much closer to the rest of Singapore.