Thailand shelves 1-trillion-baht land bridge megaproject after feasibility study finds returns unjustified

In late April, Sebastian Strangio and I each wrote articles for The Diplomat highlighting how Thailand's ambition to build a "land bridge" across its upper southern provinces—an alternative trade route to the Strait of Malacca via two deep-sea ports connected by a dual-track railway and a six-lane highway—was increasingly framed by Thai leaders as a necessity amid growing geopolitical instability. What we said quickly became outdated, as the shelving of the one-trillion-baht megaproject came to light on July 24.

Official Announcement and Key Concerns

The announcement was made verbally by Deputy Prime Minister and Finance Minister Ekniti Nitithanprapas, citing unfavorable findings in a government feasibility study. As many skeptics have loudly argued, the projected financial returns do not look promising. The operational requirement to repeatedly load and unload goods is too cumbersome and may end up taking more time than shipping through the supposedly longer Malacca route.

Environmental Impact

Another guaranteed problem is environmental damage. Constructing a 90-kilometer transport corridor would involve seaward land reclamation of approximately 13,000 rai in two ecologically rich provinces:

• 7,000 rai in Ranong on the Andaman Coast
• 6,000 rai in Chumphon facing the Gulf of Thailand

This far exceeds the 5,257 rai (2,411 during Phase 1 and 2 construction, and 2,846 as part of the unfinished Phase 3 expansion) of sea area reclaimed for Laem Chabang Port, Thailand's main international deep-sea terminal in the Eastern Economic Corridor (EEC).

Downsized Alternative: Ranong Port Upgrade

In place of the land bridge, a downsized infrastructure upgrade will be directed to the area most in need, namely Ranong. The existing Ranong Port will be modernized, and it will have a direct rail connection to the national train network that already runs through Chumphon.

Advancing Ranong as Thailand's logistics gateway to the Indian Ocean makes structural sense for two reasons:

1. Connectivity: Ranong has strong coastal and inland connectivity, with the shortest distance to Bangkok of any Andaman province, not to mention its close proximity to Myanmar.
2. Port Management: Ranong is the only Andaman province whose port is managed by the Port Authority of Thailand, the administrator of key state-owned commercial ports, including Laem Chabang.

Phuket, despite being the poster child of the Andaman region and having its own deep-sea port near the Royal Thai Navy's Third Naval Area Command, is too tourism-oriented and has limited capacity for expansion in a literal physical sense.

No Financial Loss, but Reputational Impact

As Ekniti emphasized, stopping the land bridge project comes with no monetary loss since neither land acquisition nor actual construction has begun. The effect has been purely reputational for the Thai government, both good and bad.

Public Opposition and Government Responsiveness

The Thai public has opposed the land bridge, fiercely so over the past few months. Beyond the environmental concerns, fear of excessive foreign capital flooding in is a crucial factor. Many had likely expected that the government of Prime Minister Anutin Charnvirakul would be stubborn, given its action-oriented image and the high-profile promotion of the land bridge by successive Thai administrations since 2023. The Anutin government's ultimate decision to scrap the project could therefore be viewed positively as a responsive move. Some netizens, such as those commenting on the Facebook page of the popular economic blog Longtunman, apparently think along these lines.

Credibility Concerns

At the same time, heavily promoting the land bridge to international investors when its viability has always been questionable reflects poorly on Thailand's credibility. It does not help that other major infrastructure promises have stalled:

• High-speed rail linking three airports (U-Tapao, Suvarnabhumi, and Don Mueang), a critical component of the EEC, has not materialized since the contract was signed in 2019.
• Andaman airport in Phang Nga province, a long-floated plan to relieve congestion in neighboring Phuket, remains stuck on paper.
• Phuket's light rail transit system, an even older proposal, suffers the same fate.

To be fair, these projects are prone to unforeseen circumstances like the COVID-19 pandemic, as well as structural complexities. In the case of Phuket, even a minor transport infrastructure upgrade could paralyze part of the island, given there is only one main highway. Yet there is a natural tendency to pay selective attention, and execution seems to be all that matters in rating how credible a government is.

Future Prospects

With the centuries-old idea of digging a canal across the Kra Isthmus resurfacing time and again, the land bridge—as a strategically safer proposal rooted in the same concept—could very well make a return. A successful modernization of Ranong Port will be the vital first step.